7月制造业采购经理指数下降为50.0%
公制和英制的金属工字钢和槽钢的型号对照表

Applicable to Shapes: Shape DimensionsNomenclature & Permissible VariationsHP,M&WUnitsSymbolCommonNameEnglishMetric Permissible VariationsA Cross-sectional Area in2 mm2Õ Calculated from SDI shape – information onlyb f Flange Width in mm As per latest edition of ASTM A6/A6Md Flange Depth in mm As per latest edition of ASTM A6/A6Mk ‘k’ – line in mm Detailing dimension – information onlyk1“k1” – line in mm Detailing dimension – information onlyL Length ft,inmÕLength cutting tolerance as per current SDI price page R Fillet Radius in mm Mill practice – information onlyT ‘Clear” Web in mm Detailing dimension – information onlyt f Flange Thickness in mm As per latest edition of ASTM A6/A6Mt w Web Thickness in mm As per latest edition of ASTM A6/A6Mw Weight / Mass lbs/ft kg/m As per latest edition of ASTM A6/A6MÕDenotes deviation from ASTM A6/A6MThe permissible dimensional variations of structural long products manufactured by Steel Dynamics Inc,Structural and Rail Division, conform to the latest edition of ASTM A6/A6M. Cross-sectional areas in thefollowing tables are calculated from nominal dimensions, and include the nominal fillet radius employed by Steel Dynamics Inc. Consequently, the tabulated values may slightly deviate from those published in ASTM A6/A6M.Nominal detailing dimensions are provided as a courtesy. Permissible dimensional variations, and rollingfactors (such as roll wear), may result in supplied shapes differing from the tabulated values. Consequently, allowances should be made for proper fitting and connections.Piece length tolerance deviates from ASTM A6/A6M. Please consult the current price page for mill practice.*Please note that Steel Dynamics, Inc. reserves the right to produce material in either the Heavy Section Mill (HSM) or the Medium Section Mill (MSM).Wide FlangeBeamsInch-Pound SectionsInch - Pound SizesComparable Metric Sizes Inch - Pound SizesComparable Metric Sizes Prime SectionGroupWeight range in GroupPrime Section Group Weight range inGroupPrime SectionGroupWeight range in GroupPrime Section Group Weight range inGroup (in x in) (lbs/ft) (mm x mm)(kg/m)(in x in) (lbs/ft)(mm x mm)(kg/m)4 x 413 100 x 10019.3 14 x 6.75 30 - 38 360 x 170 44.6 - 5814 x 5 22 - 26360 x 13032.9 - 395 x 5 16 - 19 130 x 13023.8 - 28.116 x 10.2567 - 100 410 x 260 100 - 149 6 x 6 15 - 25 150 x 150 22.5 - 37.1 16 x 7 36 - 57 410 x 180 53 - 85 6 x 4 8.5 - 16 150 x 10013 - 2416 x 5.5 26 - 31410 x 14038.8 - 46.18 x 8 31 - 67 200 x 200 46.1 - 100 18 x 11 76 - 211 460 x 280 113 - 315 8 x 6.5 24 - 28 200 x 170 35.9 - 41.7 18 x 7.5 41 - 71 460 x 190 60 - 106 8 x 5.25 14 - 21 200 x 130 21.0 - 31.3 18 x 6 35 - 46460 x 15052 - 688 x 4 10 - 15 200 x 10015.0 - 22.521 x 12.25101 - 201 530 x 310 150 - 300 10 x 10 49 - 112 250 x 250 73.0 - 167 21 x 8.25 48 - 93 530 x 210 72 - 138 10 x 8 33 - 45 250 x 200 49.1 - 67.0 21 x 6.5 44 - 57530 x 17066 - 8510 x 5.75 16 - 30 250 x 150 24.0 - 44.810 x 4 12 - 19 250 x 10017.9 - 28.424 x 12.75104 - 192 610 x 320 155 - 28524 x 9 56 - 103 610 x 230 83 - 153 12 x 12 65 - 210 310 x 310 97.0 - 313 24 x 7 55 - 62610 x 18082 - 9212 x 10 53 - 58 310 x 250 79 - 8612 x 8 40 - 50 310 x 200 60 - 74 27 x 10 84 - 129690 x 250125 - 19212 x 6.5 21 - 35 310 x 170 31 - 5212 x 4 14 - 22 310 x 10021.0 - 32.730 x 10.5 90 - 132760 x 270134 - 19614 x 14.5 90 - 132 360 x 370 134 - 196 33 x 11.5 118 - 169840 x 290176 - 25114 x 10 61 - 82 360 x 250 91.0 - 12214 x 843 - 53360 x 20064 - 7936 x 12135 - 256920 x 300201 - 381W 4Comparable Metric ShapesNominal Shape DimensionsW 690’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2in inininininininin4x4 W4x13 W690x192 13 3.83 4.16 4.060 0.345 0.280 0.680 1.490 2.670 .4003/8W 5Comparable Metric ShapesNominal ShapeDimensionsW 760’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin5x5 W5x19 W130x28.1 19 5.54 5.15 5.030 0.430 0.270 0.670 1.660 3.490 .4003/8 W5x16 W130x19.316 4.68 5.01 5.000 0.360 0.240 0.640 1.520 3.490 .4003/8Comparable Metric ShapesNominal Shape DimensionsW150sFlangeWeb Detailing Distance*Fillet Radius* *These values depend on the mill.Manual measurements are necessary to confirm.W E I G H TA r e aD e p t hW i d t hT h i c k n e s sT h i c k n e s sMSMHSMMSMHSMS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nw A d b f t f t w k k 1 T k k 1 T R R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin 2ininininininininininininW6x25 W150x37.1 25 7.50 6.38 6.080 0.455 0.320 0.860 0.565 4.660 0.855 0.560 4.670 0.405 0.400 W6x20 W150x29.8 20 6.03 6.20 6.020 0.365 0.260 0.770 0.535 4.660 0.765 0.530 4.670 0.405 0.400 6x6W6x15 W150x22.515 4.59 5.99 5.990 0.260 0.230 0.665 0.520 4.660 0.660 0.515 4.670 0.405 0.400W6x16 W150x24 16 4.90 6.28 4.030 0.405 0.260 0.810 0.535 4.660 0.805 0.530 4.670 0.405 0.400 W6x12 W150x18 12 3.71 6.03 4.000 0.280 0.230 0.685 0.520 4.660 0.680 0.515 4.670 0.405 0.400 W6x9 W150x13.5 9 2.84 5.90 3.940 0.215 0.170 0.620 0.490 4.660 0.615 0.485 4.670 0.405 0.400 6x4W6x8.5 W150x138.5 2.67 5.83 3.940 0.194 0.170 0.599 0.490 4.632 0.594 0.485 4.642 0.4050.400Comparable Metric ShapesNominal Shape DimensionsW200sFlangeWeb Detailing Distance*Fillet Radius* *These values depend on the mill.Manual measurements are necessary to confirm.W E I G H TA r e aD e p t hW i d t hT h i c k n e s sT h i c k n e s sMSMHSMMSMHSMS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nw A d b f t f t w k k 1 T k k 1 T R R P r i m e S e c t i o n G r o u pin x lbs/ftmm x kg/mlbs/ftin 2inininininininininininin8x8 W8x67 W200x100 67 20.10 9.00 8.280 0.935 0.570 1.407 0.757 6.186 1.335 0.685 6.330 0.472 0.400 W8x58 W200x86 58 17.50 8.75 8.220 0.810 0.510 1.282 0.727 6.186 1.210 0.655 6.330 0.472 0.400 W8x48 W200x71 48 14.51 8.50 8.110 0.685 0.400 1.157 0.672 6.186 1.085 0.600 6.330 0.472 0.400 W8x40 W200x59 40 12.16 8.25 8.070 0.560 0.360 1.032 0.652 6.186 0.960 0.580 6.330 0.472 0.400 W8x35 W200x52 35 10.70 8.12 8.020 0.495 0.310 0.967 0.627 6.186 0.895 0.555 6.330 0.472 0.400 W8x31 W200x46.131 9.54 8.00 7.995 0.435 0.285 0.907 0.615 6.186 0.835 0.543 6.330 0.472 0.4008x6½ W8x28 W200x41.7 28 8.66 8.06 6.535 0.465 0.285 0.937 0.615 6.186 0.865 0.543 6.330 0.472 0.400 W8x24 W200x35.924 7.49 7.93 6.495 0.400 0.245 0.872 0.595 6.186 0.800 0.523 6.330 0.472 0.4008x5¼ W8x21 W200x31.3 21 6.64 8.28 5.270 0.400 0.250 0.805 0.530 6.670 0.800 0.525 6.680 0.405 0.400 W8x18 W200x26.618 5.74 8.14 5.250 0.330 0.230 0.735 0.520 6.670 0.730 0.515 6.680 0.405 0.4008x4 W8x15 W200x22.5 15 4.67 8.11 4.015 0.315 0.245 0.720 0.528 6.670 0.615 0.423 6.880 0.405 0.300 W8x13 W200x19.3 13 4.07 7.99 4.000 0.255 0.230 0.660 0.520 6.670 0.555 0.415 6.880 0.405 0.300W8x10W200x15103.207.893.9400.2050.170 0.610 0.490 6.670 0.505 0.385 6.880 0.4050.300Comparable Metric ShapesNominal Shape DimensionsW 250 sFlangeWeb Detailing Distance*Fillet Radius* *These values depend on the mill.Manual measurements are necessary to confirm.W E I G H TA r e aD e p t hW i d t hT h i c k n e s sT h i c k n e s sMSMHSMMSMHSMS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nw A d b f t f t w k k 1 T k k 1 T R R P r i m e S e c t i o n G r o u pin x lbs/ftmm x kg/mlbs/ftin 2inininininininininininin10x10 W10x112 W250x167 112 33.59 11.36 10.415 1.250 0.755 N/A N/A N/A 1.750 0.878 7.860 N/A 0.500 W10x100 W250x149 100 30.05 11.10 10.340 1.120 0.680 N/A N/A N/A 1.620 0.840 7.860 N/A 0.500 W10x88 W250x131 88 26.54 10.84 10.265 0.990 0.605 N/A N/A N/A 1.490 0.803 7.860 N/A 0.500 W10x77 W250x115 77 23.29 10.60 10.190 0.870 0.530 N/A N/A N/A 1.370 0.765 7.860 N/A 0.500 W10x68 W250x101 68 20.62 10.40 10.130 0.770 0.470 N/A N/A N/A 1.270 0.735 7.860 N/A 0.500 W10x60 W250x89 60 18.29 10.22 10.080 0.680 0.420 N/A N/A N/A 1.180 0.710 7.860 N/A 0.500 W10x54 W250x80 54 16.47 10.09 10.030 0.615 0.370 N/A N/A N/A 1.115 0.685 7.860 N/A 0.500 W10x49W250x7349 15.07 9.98 10.000 0.560 0.340 N/A N/A N/A 1.060 0.670 7.860 N/A 0.50010x8 W10x45 W250x67 45 13.91 10.10 8.020 0.620 0.350 1.277 0.832 7.546 1.120 0.675 7.860 0.657 0.500 W10x39 W250x58 39 12.11 9.927.9850.5300.315 1.187 0.815 7.546 1.030 0.658 7.860 0.6570.500 W10x33W250x49.133 10.35 9.73 7.960 0.435 0.290 1.092 0.802 7.546 0.935 0.645 7.860 0.657 0.50010x5¾ W10x30 W250x44.8 30 9.31 10.47 5.810 0.510 0.300 0.915 0.555 8.640 0.910 0.550 8.650 0.405 0.400 W10x26 W250x38.5 26 8.08 10.33 5.770 0.440 0.260 0.845 0.535 8.640 0.840 0.530 8.650 0.405 0.400 W10x22W250x32.722 6.96 10.17 5.750 0.360 0.240 0.765 0.525 8.640 0.760 0.520 8.650 0.405 0.40010x4 W10x19 W250x28.4 19 5.85 10.24 4.020 0.395 0.250 0.800 0.530 8.640 0.795 0.525 8.650 0.405 0.400 W10x17 W250x25.3 17 5.22 10.11 4.010 0.330 0.240 0.735 0.525 8.640 0.730 0.520 8.650 0.405 0.400 W10x15 W250x22.3 15 4.64 9.99 4.000 0.270 0.230 0.675 0.520 8.640 0.670 0.515 8.650 0.405 0.400W10x12W250x17.9123.779.87 3.960 0.210 0.190 0.615 0.500 8.640 0.610 0.495 8.650 0.4050.400Comparable Metric ShapesNominal Shape DimensionsW 310sFlangeWeb Detailing Distance*Fillet Radius* *These values depend on the mill.Manual measurements are necessary to confirm.W E I G H TA r e aD e p t hW i d t hT h i c k n e s sT h i c k n e s sMSMHSMMSMHSMS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nw A d b f t f t w k k 1 T k k 1 T R R P r i m e S e c t i o n G r o u pin x lbs/ftmm x kg/mlbs/ftin 2inininininininininininin12x12 W12x210 W310x313 210 63.16 14.71 12.790 1.900 1.180 N/A N/A N/A 2.687 1.377 9.336 N/A 0.787 W12x190 W310x283 190 57.21 14.38 12.670 1.735 1.060 N/A N/A N/A 2.522 1.317 9.336 N/A 0.787 W12x170 W310x253 170 51.38 14.03 12.570 1.560 0.960 N/A N/A N/A 2.347 1.267 9.336 N/A 0.787 W12x152 W310x226 152 46.12 13.71 12.480 1.400 0.870 N/A N/A N/A 2.187 1.222 9.336 N/A 0.787 W12x136 W310x202 136 41.30 13.41 12.400 1.250 0.790 N/A N/A N/A 2.037 1.182 9.336 N/A 0.787 W12x120 W310x179 120 36.66 13.12 12.320 1.105 0.710 N/A N/A N/A 1.892 1.142 9.336 N/A 0.787 W12x106 W310x158 106 32.54 12.89 12.220 0.990 0.610 N/A N/A N/A 1.777 1.092 9.336 N/A 0.787 W12x96 W310x143 96 29.57 12.71 12.160 0.900 0.550 N/A N/A N/A 1.687 1.062 9.336 N/A 0.787 W12x87 W310x129 87 26.95 12.53 12.125 0.810 0.515 N/A N/A N/A 1.597 1.045 9.336 N/A 0.787 W12x79 W310x117 79 24.57 12.38 12.080 0.735 0.470 N/A N/A N/A 1.522 1.022 9.336 N/A 0.787 W12x72 W310x107 72 22.51 12.25 12.040 0.670 0.430 N/A N/A N/A 1.457 1.002 9.336 N/A 0.787 W12x65W310x9765 20.46 12.12 12.000 0.605 0.390 N/A N/A N/A 1.392 0.982 9.336 N/A 0.78712x10 W12x58 W310x86 58 17.98 12.19 10.010 0.640 0.360 N/A N/A N/A 1.427 0.967 9.336 N/A 0.787 W12x53W310x7953 16.50 12.06 9.995 0.575 0.345 N/A N/A N/A 1.362 0.960 9.336 N/A 0.78712x8 W12x50 W310x74 50 15.62 12.19 8.080 0.640 0.370 1.297 0.842 9.596 1.427 0.972 9.336 0.657 0.787 W12x45 W310x67 45 14.14 12.06 8.045 0.575 0.335 1.232 0.825 9.596 1.362 0.955 9.336 0.657 0.787 W12x40W310x6040 12.70 11.94 8.005 0.515 0.295 1.172 0.805 9.596 1.302 0.935 9.336 0.657 0.78712x6.5 W12x35 W310x52 35 10.81 12.50 6.560 0.520 0.300 0.920 0.550 10.660 0.920 0.550 10.660 0.400 0.400 W12x30 W310x44.5 30 9.27 12.34 6.520 0.440 0.260 0.840 0.530 10.660 0.840 0.530 10.660 0.400 0.400 W12x26W310x38.726 8.12 12.22 6.490 0.380 0.230 0.780 0.515 10.660 0.780 0.515 10.660 0.400 0.40012x4 W12x22 W310x32.7 22 6.71 12.31 4.030 0.425 0.260 0.725 0.430 10.860 0.825 0.530 10.660 0.300 0.400 W12x19 W310x28.3 19 5.81 12.16 4.005 0.350 0.235 0.650 0.418 10.860 0.750 0.518 10.660 0.300 0.400 W12x16 W310x23.8 16 4.95 11.99 3.990 0.265 0.220 0.565 0.410 10.860 0.665 0.510 10.660 0.300 0.400W12x14W310x21144.3911.913.970 0.225 0.200 0.525 0.400 10.860 0.625 0.500 10.660 0.3000.400Comparable Metric ShapesNominal Shape DimensionsW 360sFlangeWeb Detailing Distance*Fillet Radius* *These values depend on the mill.Manual measurements are necessary to confirm.W E I G H TA r e aD e p t hW i d t hT h i c k n e s sT h i c k n e s sMSMHSMMSM HSMS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nw A d b f t f t w k k 1 T k k 1 T R R P r i m e S e c t i o n G r o u pin x lbs/ftmm x kg/mlbs/ftin 2inininininininininininin14x14½ W14x132 W360x196 132 40.15 14.66 14.725 1.030 0.645 N/A N/A N/A 1.817 1.110 11.026 N/A0.787 W14x120 W360x179 120 36.70 14.48 14.670 0.940 0.590 N/A N/A N/A 1.727 1.082 11.026 N/A 0.787 W14x109 W360x162 109 33.42 14.32 14.605 0.860 0.525 N/A N/A N/A 1.647 1.050 11.026 N/A 0.787 W14x99 W360x147 99 30.52 14.16 14.565 0.780 0.485 N/A N/A N/A 1.567 1.030 11.026 N/A 0.787 W14x90W360x13490 27.85 14.02 14.520 0.710 0.440 N/A N/A N/A 1.497 1.007 11.026 N/A 0.78714x10 W14x82 W360x122 82 24.99 14.31 10.130 0.855 0.510 N/A N/A N/A 1.642 1.042 11.026 N/A 0.787 W14x74 W360x110 74 22.72 14.17 10.070 0.785 0.450 N/A N/A N/A 1.572 1.012 11.026 N/A 0.787 W14x68 W360x101 68 20.92 14.04 10.035 0.720 0.415 N/A N/A N/A 1.507 0.995 11.026 N/A 0.787 W14x61W360x9161 18.86 13.89 9.995 0.645 0.375 N/A N/A N/A 1.432 0.975 11.026 N/A 0.78714x8 W14x53 W360x79 53 16.54 13.92 8.060 0.660 0.370 1.317 0.842 11.286 1.447 0.972 11.026 0.657 0.787 W14x48 W360x72 48 15.08 13.79 8.030 0.595 0.340 1.252 0.827 11.286 1.382 0.957 11.026 0.657 0.787 W14x43W360x6443 13.56 13.66 7.995 0.530 0.305 1.187 0.810 11.286 1.317 0.940 11.026 0.657 0.78714x6¾ W14x38 W360x58 38 11.58 14.10 6.770 0.515 0.310 1.172 0.812 11.756 0.915 0.555 12.270 0.657 0.400 W14x34 W360x51 34 10.41 13.986.745 0.455 0.285 1.112 0.800 11.756 0.855 0.543 12.270 0.657 0.400W14x30W360x44.630 9.26 13.84 6.730 0.385 0.270 1.042 0.792 11.756 0.785 0.535 12.270 0.657 0.40014x5 W14x26 W360x39 26 8.10 13.91 5.025 0.420 0.255 1.077 0.785 11.756 0.820 0.528 12.270 0.657 0.400W14x22W360x32.9226.9113.74 5.000 0.335 0.230 0.992 0.772 11.756 0.735 0.515 12.270 0.657 0.400Comparable Metric ShapesDimensionsW 410’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin16x10¼ W16x100 W410x149100 29.86 16.97 10.425 0.985 0.585 1.655 0.963 13.660 0.670 11/16W16x89 W410x132 89 26.56 16.75 10.365 0.875 0.525 1.545 0.933 13.660 0.670 11/16 W16x77 W410x114 77 23.02 16.52 10.295 0.760 0.455 1.430 0.898 13.660 0.670 11/16 W16x67 W410x100 67 20.09 16.33 10.235 0.665 0.395 1.335 0.868 13.660 0.670 11/1616x7 W16x57 W410x85 57 17.18 16.43 7.120 0.715 0.430 1.385 0.885 13.660 0.670 11/16 W16x50 W410x75 50 15.16 16.26 7.070 0.630 0.380 1.300 0.860 13.660 0.670 11/16 W16x45 W410x67 45 13.67 16.13 7.035 0.565 0.345 1.235 0.843 13.660 0.670 11/16 W16x40 W410x60 40 12.19 16.01 6.995 0.505 0.305 1.175 0.823 13.660 0.670 11/16 W16x36 W410x53 36 10.98 15.86 6.985 0.430 0.295 1.100 0.818 13.660 0.670 11/1616x5½ W16x31 W410x46.1 31 9.54 15.88 5.525 0.440 0.275 1.110 0.808 13.660 0.670 11/16 W16x26 W410x38.826 8.10 15.69 5.500 0.345 0.250 1.015 0.795 13.660 0.670 11/16Comparable Metric ShapesDimensionsW 460’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin18x11 W18x211 W460x315 211 62.55 20.67 11.555 1.910 1.060 2.580 1.200 15.510 0.670 11/16W18x192 W460x286 192 56.82 20.35 11.455 1.750 0.960 2.420 1.150 15.510 0.670 11/16 W18x175 W460x260 175 51.73 20.04 11.375 1.590 0.890 2.260 1.115 15.520 0.670 11/16 W18x158 W460x235 158 46.73 19.72 11.300 1.440 0.810 2.110 1.075 15.500 0.670 11/16 W18x143 W460x213 143 42.47 19.49 11.220 1.320 0.730 1.990 1.035 15.510 0.670 11/16 W18x130 W460x193 130 38.62 19.25 11.160 1.200 0.670 1.870 1.005 15.510 0.670 11/16 W18x119 W460x177 119 35.47 18.97 11.265 1.060 0.655 1.730 0.998 15.510 0.670 11/16 W18x106 W460x158 106 31.55 18.73 11.200 0.940 0.590 1.610 0.965 15.510 0.670 11/16 W18x97 W460x144 97 28.96 18.59 11.145 0.870 0.535 1.540 0.938 15.510 0.670 11/16 W18x86 W460x128 86 25.72 18.39 11.090 0.770 0.480 1.440 0.910 15.510 0.670 11/16 W18x76 W460x113 76 22.72 18.21 11.035 0.680 0.425 1.350 0.883 15.510 0.670 11/1618x7½ W18x71 W460x106 71 21.26 18.47 7.635 0.810 0.495 1.480 0.918 15.510 0.670 11/16 W18x65 W460x97 65 19.52 18.35 7.590 0.750 0.450 1.420 0.895 15.510 0.670 11/16 W18x60 W460x89 60 18.04 18.24 7.555 0.695 0.415 1.365 0.878 15.510 0.670 11/16 W18x55 W460x82 55 16.61 18.11 7.530 0.630 0.390 1.300 0.865 15.510 0.670 11/16 W18x50 W460x74 50 15.08 17.99 7.495 0.570 0.355 1.240 0.848 15.510 0.670 11/16 18x6 W18x46 W460x68 46 13.95 18.06 6.060 0.605 0.360 1.275 0.850 15.510 0.670 11/16 W18x40 W460x60 40 12.17 17.90 6.015 0.525 0.315 1.195 0.828 15.510 0.670 11/16 W18x35 W460x5235 10.71 17.70 6.000 0.425 0.300 1.095 0.820 15.510 0.670 11/16Comparable Metric ShapesDimensionsW 530’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin21x12¼ W21x201 W530x300201 59.20 23.03 12.575 1.630 0.910 2.330 1.155 18.370 0.700 11/16W21x182 W530x272 182 53.70 22.72 12.500 1.480 0.830 2.180 1.115 18.360 0.700 11/16 W21x166 W530x248 166 50.29 22.48 12.420 1.360 0.750 2.060 1.075 18.360 0.700 11/16 W21x147 W530x219 147 44.69 22.06 12.510 1.150 0.720 1.850 1.060 18.360 0.700 11/16 W21x132 W530x196 132 40.28 21.83 12.440 1.035 0.650 1.735 1.025 18.360 0.700 11/16 W21x122 W530x182 122 37.33 21.68 12.390 0.960 0.600 1.660 1.000 18.360 0.700 11/16 W21x111 W530x165 111 34.15 21.51 12.340 0.875 0.550 1.575 0.975 18.360 0.700 11/16 W21x101 W530x150 101 31.23 21.36 12.290 0.800 0.500 1.500 0.950 18.360 0.700 11/1621x8¼ W21x93 W530x13893 27.98 21.62 8.420 0.930 0.580 1.630 0.990 18.360 0.700 11/16 W21x83 W530x123 83 24.99 21.43 8.355 0.835 0.515 1.535 0.958 18.360 0.700 11/16 W21x73 W530x109 73 22.13 21.24 8.295 0.740 0.455 1.440 0.928 18.360 0.700 11/16 W21x68 W530x101 68 20.69 21.13 8.270 0.685 0.430 1.385 0.915 18.360 0.700 11/16 W21x62 W530x92 62 18.90 20.99 8.240 0.615 0.400 1.315 0.900 18.360 0.700 11/16 W21x55Õ W530x82 55 16.85 20.80 8.220 0.522 0.375 1.222 0.888 18.356 0.700 11/16 W21x48Õ W530x72 48 14.78 20.62 8.140 0.430 0.350 1.130 0.875 18.360 0.700 11/1621x6½ W21x57 W530x8557 17.38 21.06 6.555 0.650 0.405 1.350 0.903 18.360 0.700 11/16 W21x50 W530x74 50 15.36 20.83 6.530 0.535 0.380 1.235 0.890 18.360 0.700 11/16 W21x44 W530x6644 13.63 20.66 6.500 0.450 0.350 1.150 0.875 18.360 0.700 11/16Comparable Metric ShapesDimensionsW 610’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin24x12¾ W24x192 W610x285192 57.76 25.47 12.950 1.460 0.810 2.160 1.105 21.150 0.700 11/16W24x176 W610x262 176 53.15 25.24 12.890 1.340 0.750 2.040 1.075 21.160 0.700 11/16 W24x162 W610x241 162 49.20 25.00 12.955 1.220 0.705 1.920 1.053 21.160 0.700 11/16 W24x146 W610x217 146 44.47 24.74 12.900 1.090 0.650 1.790 1.025 21.160 0.700 11/16 W24x131 W610x195 131 40.02 24.48 12.855 0.960 0.605 1.660 1.003 21.160 0.700 11/16 W24x117 W610x174 117 35.85 24.26 12.800 0.850 0.550 1.550 0.975 21.160 0.700 11/16 W24x104 W610x155 104 32.09 24.06 12.750 0.750 0.500 1.450 0.950 21.160 0.700 11/1624x9 W24x103 W610x153 103 30.91 24.53 9.000 0.980 0.550 1.680 0.975 21.170 0.700 11/16 W24x94 W610x140 94 28.34 24.31 9.065 0.875 0.515 1.575 0.958 21.160 0.700 11/16 W24x84 W610x125 84 25.35 24.10 9.020 0.770 0.470 1.470 0.935 21.160 0.700 11/16 W24x76 W610x113 76 23.01 23.92 8.990 0.680 0.440 1.380 0.920 21.160 0.700 11/16 W24x68 W610x101 68 20.71 23.73 8.965 0.585 0.415 1.285 0.908 21.160 0.700 11/1624x7 W24x62 W610x92 62 18.87 23.74 7.040 0.590 0.430 1.290 0.915 21.160 0.700 11/16 W24x55 W610x8255 16.85 23.57 7.005 0.505 0.395 1.205 0.898 21.160 0.700 11/16Comparable Metric ShapesDimensionsW 690’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin27x10 W27x129 W690x192 129 39.22 27.63 10.010 1.100 0.610 1.801 1.006 24.029 0.701 11/16W27x114 W690x170 114 34.91 27.29 10.070 0.930 0.570 1.631 0.986 24.029 0.701 11/16 W27x102 W690x152 102 31.41 27.09 10.015 0.830 0.515 1.531 0.958 24.029 0.701 11/16 W27x94 W690x140 94 29.03 26.92 9.990 0.745 0.490 1.446 0.946 24.029 0.701 11/16 W27x84 W690x12584 26.13 26.71 9.960 0.640 0.460 1.341 0.931 24.029 0.701 11/16W 30Comparable Metric ShapesNominal Shape DimensionsW 760’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin30x10½ W30x132 W760x196 132 40.19 30.31 10.545 1.000 0.615 1.701 1.008 26.909 0.701 11/16W30x124 W760x185 124 37.80 30.17 10.515 0.930 0.585 1.631 0.993 26.909 0.701 11/16 W30x116 W760x173 116 35.52 30.01 10.495 0.850 0.565 1.551 0.983 26.909 0.701 11/16 W30x108 W760x161 108 33.04 29.83 10.475 0.760 0.545 1.461 0.973 26.909 0.701 11/16 W30x99 W760x147 99 30.41 29.65 10.450 0.670 0.520 1.371 0.961 26.909 0.701 11/16 W30x90 W760x13490 27.68 29.53 10.400 0.610 0.470 1.311 0.936 26.909 0.701 11/16Comparable Metric ShapesDimensionsW 840’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDistance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin33x11½ W33x169 W840x251 169 50.77 33.82 11.500 1.220 0.670 1.921 1.036 29.979 0.701 11/16 W33x152 W840x226 152 46.01 33.49 11.565 1.055 0.635 1.756 1.018 29.979 0.701 11/16 W33x141 W840x210 141 42.82 33.30 11.535 0.960 0.605 1.661 1.003 29.979 0.701 11/16 W33x130 W840x193 130 39.57 33.09 11.510 0.855 0.580 1.556 0.991 29.979 0.701 11/16 W33x118 W840x176118 35.93 32.86 11.480 0.740 0.550 1.441 0.976 29.979 0.701 11/16W 36Comparable Metric ShapesNominal Shape DimensionsW 920’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDistance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin36x12 W36x256 W920x381 256 76.81 37.43 12.215 1.730 0.960 2.481 1.231 32.469 0.7513/4 W36x232 W920x345 232 69.55 37.12 12.120 1.570 0.870 2.321 1.186 32.479 0.751 3/4 W36x210 W920x313 210 63.26 36.69 12.180 1.360 0.830 2.111 1.166 32.469 0.751 3/4 W36x194 W920x289 194 58.45 36.49 12.115 1.260 0.765 2.011 1.133 32.469 0.751 3/4 W36x182 W920x271 182 55.06 36.33 12.075 1.180 0.725 1.931 1.113 32.469 0.751 3/4 W36x170 W920x253 170 51.50 36.17 12.030 1.100 0.680 1.851 1.091 32.469 0.751 3/4 W36x160 W920x238 160 48.49 36.01 12.000 1.020 0.650 1.771 1.076 32.469 0.751 3/4 W36x150 W920x223 150 45.68 35.85 11.975 0.940 0.625 1.691 1.063 32.469 0.751 3/4 W36x135 W920x201135 41.20 35.55 11.950 0.790 0.600 1.541 1.051 32.469 0.7513/4H-PileInch-Pound SectionsInch-Pound SizesComparable Metric Sizes Inch-Pound SizesComparable Metric Sizes Prime SectionGroupWeight range in GroupPrime Section Group Weight range inGroupPrime SectionGroupWeight range in GroupPrime Section Group Weight range inGroup (in x in) (lbs/ft) (mm x mm)(kg/m)(in x in) (lbs/ft)(mm x mm)(kg/m)8 x 8 36 200 x 20053 12 x 1253 - 117310 x 31079 - 17410 x 1042 - 57250 x 25062 - 8514 x 141/473 - 117360 x 370108 - 174HP 8Comparable Metric ShapesNominal Shape DimensionsHP 200’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin8x8 HP8x36 HP200x53 36 10.98 8.02 8.155 0.445 0.445 0.845 0.623 6.329 0.4003/8HP 10Comparable Metric ShapesNominal ShapeDimensionsHP 250’sFlangeW E I G H TA r e aD e p t hW i d t hT h i c k n e s sW e b T h i c k n e s sDetailing Distance Fillet RadiusS E C T I O N N A M EC o m p a r a b l e M e t r i c S e c t i o nwAdb ft ft wk k 1 T R P r i m e S e c t i o n G r o u pin x lbs/ft mm x kg/mlbs/ftin2ininininin in ininin10x10 HP10x57 HP250x8557 17.42 9.99 10.225 0.565 0.565 1.065 0.783 7.859 0.500 1/2 HP10x42 HP250x6242 13.00 9.70 10.075 0.420 0.415 0.920 0.708 7.859 0.500 1/2。
辽宁省大连名校联盟2024-2025学年上学期八年级数学期中试题(二)

辽宁省大连名校联盟2024-2025学年上学期八年级数学期中试题(二)一、单选题1.下列四幅图案中,不是轴对称图形的是()A .B .C .D .2.点()3,4M -关于x 轴的对称点M '的坐标是()A .()3,4B .()3,4--C .()3,4-D .()4,3-3.如图,ABC V 和A B C ''' 关于直线l 对称,已知 3.2cm AC =, 3.6cm A B ''=, 4.5cm BC =,则AB 的长为()A .3.2cmB .3.6cmC .4.5cmD .无法确定4.如图,点B ,F ,E ,D 共线,B D ∠=∠,BE DF =,添加一个条件,不能判定ABF CDE ≌△△的是()A .AF CE ∥B .AC ∠=∠C .AF CE =D .AB CD=5.已知一等腰三角形的两边长分别为4和8,则该三角形的周长是()A .18B .20C .22D .246.根据下列已知条件,能画出唯一ABC 的是()A .60454A B AB ∠∠=︒=︒=,,B .538AB BC AC ===,,C .906C AB ∠=︒=,D .4330AB BC A ∠===︒,,7.如图,DE 是ABC V 中AC 边的垂直平分线,若8BC =,10AB =,7AC =,则EBC 的周长是()A .13B .16C .18D .208.如图,在ABC V 中,按以下步骤作图:①分别以B ,C 为圆心,以大于12BC 的长为半径作弧,两弧相交于两点M ,N ;②作直线MN 交AB 于点D ,连接CD .若CD AC =,50A ∠=︒,则ACB ∠的度数为()A .90︒B .95︒C .100︒D .105︒9.如图,在△ABC 中,AD 平分∠BAC ,AD ⊥BD 于点D ,DE ∥AC 交AB 于点E ,若AB =8,则DE 的长度是()A .6B .2C .3D .410.如图,D 是ABC V 的边BC 上一点,D 交A 于点F ,连接AE ,B ,已知AD AC =,EAB CAD BDE ∠=∠=∠,下列结论不一定正确的是()A .AB AE =B .B E ∠=∠C .B DAF ∠=∠D .DE BC=二、填空题11.如图,已知CD AB ⊥,BE AC ⊥,垂足分别为D E 、,BE CD 、相交于点O ,且AO 平分BAC ∠,那么图中全等三角形共有对.12.如图,AD BC ⊥,BE 是ABC V 的角平分线,BE ,AD 相交于点F ,若44BAD ∠=︒,则BFD ∠=.13.如图,彭彭和欢欢去郊外游玩,他们想测量点N 到河对岸的点M 之间的距离,彭彭在点N 的同侧选择了一点G ,测得60MNG ∠=︒,26NGM ∠=︒,欢欢在点P 处放了一块石头,使60PNG ∠=︒.要想测得点M ,N 之间的距离,有下列四种方案:①测量NG 的长;②测量PN 的长;③测量GMN ∠的度数;④在GN 的下方作26NGQ ∠=︒,交射线NP 于点Q ,测量QN 的长.你认为正确的是.(填序号)14.如图1,这是一个平板电脑支架,由托板、支撑板和底座构成,平板电脑放置在托板上,图2是其侧面结构示意图.现量得托板长10cm AB =,支撑板顶端的C 恰好是托板AB 的中点,托板AB 可绕点C 转动,支撑板CD 可绕点D 转动.当CD AB ⊥,且射线DB 恰好是CDE ∠的平分线时,此时点B 到直线DE 的距离是.15.如图,在ABC V 中,10128AB AC BC AD ====,,,AD 是BAC ∠的平分线.若P ,Q 分别是AD 和AC 上的动点,则PC PQ +的最小值是.三、解答题16.如图,太阳光线AC 与A ′C ′是平行的,同一时刻两根高度相同的木杆在太阳光照射下的影子BC 与B ′C ′一样长吗?说说你的理由.17.如图,在ABC V 中,A ,B ,C 三点的坐标分别为()3,2A -,()1,4B -,()5,5C -.(1)画出ABC V 关于x 轴对称的图形111A B C △;(2)请直接写出111A B C △三个顶点的坐标;(3)求ABC V 的面积.18.如图①,油纸伞是中国传统工艺品之一,起源于中国的一种纸制或布制伞.油纸伞的制作工艺十分巧妙,如图②,伞圈D 沿着伞柄AP 滑动时,伞柄AP 始终平分同一平面内两条伞骨所成的BAC ∠,伞骨BD ,CD 的B ,C 点固定不动,且到点A 的距离AB AC =.(1)当D 点在伞柄AP 上滑动时,处于同一平面的两条伞骨BD 和CD 相等吗?请说明理由.(2)如图③,当油纸伞撑开时,伞的边缘M ,N 与点D 在同一直线上,若140BAC ∠=︒,120MBD ∠=︒,求CDA ∠的度数.19.如图,在ABC V 中,B C ∠=∠,D 是BA 延长线上的一点.(1)尺规作图:过点A 作直线//AE BC ,并且点E 在DAC ∠的内部;(2)在(1)的条件下,说明AE 平分DAC ∠.20.如图,在△ABC 中,DM ,EN 分别垂直平分边AC 和边BC ,交边AB 于M ,N 两点,DM 与EN 相交于点F .(1)若AB =3cm ,求△CMN 的周长;(2)若∠MFN =70°,求∠MCN 的度数.21.(1)如图1,ABC V 中,90ACB ∠=︒,AC BC =,直线l 过点C ,点A ,B 在直线l 同侧,BD l ⊥于点D ,AE l ⊥于点E .求证:AEC CDB △≌△.(2)应用:如图2,AE AB ⊥,且AE AB =,BC CD ⊥,且BC CD =,利用(1)中的结论,按照图中所标注的数据,计算实线所围成的图形的面积.(3)拓展:如图3,等边EBC 中,6cm BC =,点O 在边BC 上,且4cm OC =,动点P 从点E 出发沿射线EC 以2cm/s 的速度运动,连接OP ,将线段OP 绕点O 逆时针旋转120°得到线段OF .设点P 运动的时间为t s ,请直接写出当时t =______s ,点F 恰好落在射线EB 上.22.问题提出:(1)我们把两个面积相等但不全等的三角形叫做偏等积三角形,如图ABC V 中,7AC =,9BC =,10AB =,P 为AC 上一点,当AP =________时,ABP 与CBP 是偏等积三角形;问题探究:(2)如图,ABD △与ACD 是偏等积三角形,2AB =,6AC =,且线段AD 的长度为正整数,过点C 作CE AB ∥交AD 的延长线于点E ,求AD 的长度为________.问题解决:(3)如图,四边形ABED 是一片绿色花园,CA CB =,CD CE =,90ACB DCE ∠=∠=︒(090BCE ︒<∠<︒).ACD 与BCE 是偏等积三角形吗?请说明理由.23.在平面直角坐标系中,A ,P 分别是x 轴、y 轴正半轴上的点,B 是线段OA 上一点,连接PB .(1)如图1,CA x ⊥轴于点A ,BC PB ⊥,D 是OP 上一点,且BDO PBO ∠=∠;①求证:DBO CBA ∠=∠;②若OP OA =,求证:BD BC BP +=;(2)如图2,()()5020A B ,,,,G 是PB 的中点,连接AG ,M 是x 轴负半轴上一点,2PM AG =,当点P 在y 轴正半轴上运动时,点M 的坐标是否会发生变化?若不变,求点M 的坐标;若改变,求出其变化的范围.。
服装号型,尺寸换算对照表

全面实用的服装号型,尺码换算对照表­" ]" o8 K6 N/ k6 Z% Z2 Z: x9 b­4 H0 ^/ M& ?3 T2 l9 S. r" d! ]) L ?一.吊牌上的执行标准的意思­; @" i' ~+ |% r; @3 F0 B- hA类,B类,C类的含义:这是国标中对甲醛含量的规定,A类是婴糼儿用品,B类是直接接触皮肤,C类是非直接接触皮肤­1 M L) }5 ?6 r' Q; F9 [6 J) L) I/ r& Y% A5 T( E二.常见的服装生产国家标准­: u" n7 _, H0 w) ?GB/T2664-2001男西服,大衣 GB/T2665-2001女西服GB/T2666-2001男女西裤 GB/T2660-1999衬衫 GB/T2662-1999棉服装 FZ/T81004-2003连衣裙,裙套。
FZ/T81006-1992牛仔服装FZ/T81007-2003男女单服装FZ/T81008-1994茄克衫GB/T8878-2002棉针织内衣FZ/T73008-2002针织T恤衫 FZ/T73010-1998针织工艺衫FZ/T73003-1991精梳毛针织品FZ/T73004-1991粗梳毛针织品GB1103-1999棉花细绒棉GB/T14272-2002羽绒服­- L/ D6 B- x$ R$ ~) M三.国家服装号型的含义­$ T# t) p) g y$ `号型定义:“号”指人体的身高,以cm为单位,是设计和选购服装长短的依据;“型”指人体的胸围和腰围,以cm为单位,是设计和选购服装肥瘦的依据。
体型分类:以人体的胸围与腰围的差数为依据来划分体型,并将体型分为四类,体型分类代号分别为Y(偏瘦)、A(正常)、B(偏胖)、C(肥胖)­9 [5 ~- L8 H/ ` r/ j( ~: ?& O) ~" j4 W- P号型标志:号型的表示方法为号与型之间用斜线分开,后接体型分类代号。
水轮机选型设计

⽔轮机选型设计第⼀章⽔轮机的选型设计第⼀节⽔轮机型号的初步选择⼀、沙溪⽔电站的主要参数H max =68.0m H p =50.0m H min =43.0m由《⽔利机械》P 36设计⽔头 H r 初算时可近似取(0.9~1.0)H p H r = 0.95×50.0= 47.5m 总装机35万kw⼆、因为沙溪⽔电站的⽔头范围为43.0m~68.0m,根据《⽔轮机》课本,符合此⽔头范围的要求,分别是 HL220,它的使⽤⽔头为30~70m 。
该⽔电站的⽔头范围为38-68m ,适合此⽔头范围⽔轮机的类型有斜流式和混流式。
⼜根据混流式⽔轮机的优点:(1)⽐转速范围⼴,适⽤⽔头范围⼴,可适⽤30-700m ;、(2)结构简单,价格低;(3)装有尾⽔管,可减少转轮出⼝⽔流损失;故选择混流式⽔轮机。
⼆.⽐转速的选择按我国⽔轮机的型谱推荐的设计⽔头与⽐转速的关系,⽔轮机的s n 为 )(19.270205.472000202000kw m H n rs ?=-=-=因此,选择s n 在260左右的⽔轮机为宜。
在⽔轮机型谱中有HL220,故按HL220进⾏计算三.单机容量第⼆节原型⽔轮机主要参数的选择按电站建成后,在电⼒系统的作⽤和供电⽅式,初步拟定为2台、3台、4台、5台四种⽅案进⾏⽐较。
HL220其主要参数如下:模型转轮直径D 1=46cm,导叶相对⾼度b 0/D 1=0.25 z 1=14, 最优⼯况n 10’=70r/min,Q 10’=1.0m 3/s,η=92%,ns0=255,σ=0.115; 限制⼯况Q 1’=1.150m 3/s,η=89%,σ=0.133. 最⼤单位飞逸⽐转速n 1p ’= 133 r/min⼀.(⼆台)1、计算转轮直径⽔轮机额定出⼒:kw N P GGr 4.17857198.0105.174=?==η式中:G η-----发电机效率,取0.98 G N -----机组的单机容量(KW )取最优单位转速流量,Q 11r =1.14m 3/s ,对应的模型效率ηm=0.886,暂取效率修正值Δη=0.03,则设计⼯况原型⽔轮机效率η=ηm +Δη=0.916)(29.7916.05.4714.181.99183781.95.15.1111m H Q P D r r ===η按我国规定的转轮直径系列,计算值处于标准值7.0m 和7.5m 之间。
6MBP50RA120中文资料

IGBT -IPM R series1200V / 50A 6 in one-package6MBP50RA120Features· Temperature protection provided by directly detecting the junction temperature of the IGBTs· Low power loss and soft switching· Compatible with existing IPM-N series packages· High performance and high reliability IGBT with overheating protection · Higher reliability because of a big decrease in number of parts inbuilt-in control circuitMaximum ratings and characteristicsAbsolute maximum ratings (at Tc=25°C unless otherwise specified)Symbol Rating UnitMin. Max.DC bus voltageDC bus voltage (surge)DC bus voltage (short operating)Collector-Emitter voltageINV Collector current DC 1ms DCCollector power dissipation One transistor Junction temperatureInput voltage of power supply for Pre-Driver Input signal voltage Input signal current Alarm signal voltage Alarm signal current Storage temperatureOperating case temperatureIsolating voltage (Case-T erminal)Screw torque Mounting (M5) T erminal (M5)V DCV DC(surge)V SC V CES I C I CP -I C P C T jV CC *1V in *2I inV ALM *3I ALM *4T stg T opV iso *5Item0 0200 0 - - - - - 0 0 - 0 - -40 -20 - - - 9001000 8001200 50 100 50 357 150 20 Vz 1 Vcc 15 125 100AC2.53.5 *63.5 *6V V V V A A A W °C V V mA V mA °C °C kV N·m N·m*1 Apply Vcc between terminal No. 3 and 1, 6 and 4, 9 and 7, 11 and 10.*2 Apply Vin between terminal No. 2 and 1, 5 and 4, 8 and 7, 13,14,15 and 10.*3 Apply V ALM between terminal No. 16 and 10.*4 Apply I ALM to terminal No. 16.*5 50Hz/60Hz sine wave 1 minute.*6 Recommendable Value : 2.5 to 3.0 N·mElectrical characteristics of power circuit (at Tc=Tj=25°C, Vcc=15V)Item Symbol Condtion Min. Typ. Max. UnitINV Collector current at off signal input Collector-Emitter saturation voltage Forward voltage of FWD I CESV CE(sat)V FV CE =1200V input terminal open Ic=50A -Ic=50A – – 1.0 mA – – 2.6 V – – 3.0 V Fig.1 Measurement of case temperature元器件交易网6MBP50RA120IGBT -IPMItem Symbol Min. Typ. Max. Unit DC bus voltage Operating power supply voltage range of Pre-driver Switching frequency of IPM Screw torque Mounting (M5) T erminal (M5)V DC 200 - 800 V V CC 13.5 15 16.5 V f SW 1 - 20 kHz - 2.5 - 3.0 N·m - 2.5 - 3.0 N·mRecommendable value*7 Switching frequency of IPM6MBP50RA120IGBT-IPMBlock diagramOutline drawings, mmMass : 440gPre-drivers include following functions a) Amplifier for driver b) Short circuit protectionc) Undervoltage lockout circuit d) Over current protectione) IGBT chip over heating protection6MBP50RA120IGBT-IPMCharacteristics (Representative)Control Circuit510152025303540P o w e r su pp ly cu rre n t vs. S w itch ing fre q u en cyTj=100°CP o w e r s u p p l y c u r r e n t : I c c (m A )S w itc hing frequ e nc y : fsw (k H z)00.511.522.512131415161718Input signal th resh o ld voltage vs. P ow er su pply voltageI n p u t s i g n a l t h r e s h o l d v o l t a g e: V i n (o n ),V i n (o f f ) (V )Pow er supply voltage : Vcc (V )T j=25°C0.20.40.60.81U nde r vo ltage hyste ris is vs. Jnc tion tem p eratu reU n d e r v o l t a g e h y s t e r i s i s : V H (V )Junction temperature : Tj (°C)246810121420406080100120140Under voltage vs. Junction temperatureU n d e r v o l t a g e : V U V T (V )Junction temperature : Tj (°C)0.511.522.53A la rm h old tim e vs. P o w e r su p p ly vo lta g eA l a r m h o l d t i m e : t A L M (m S e c )P ow e r s up p ly voltag e : V cc (V )5010015020012131415161718Over h e a tin g ch ara cte ris tics TcOH ,TjOH ,TcH ,TjH vs. VccO v e r h e a t i n g p r o t e c t i o n : T c O H ,T j O H (°C )O H h y s t e r i s i s : T c H ,T j H (°C )Pow er s up ply v oltage : V c c (V )6MBP50RA120IGBT-IPMInverter102030405060708000.51 1.52 2.53C ollec tor curren t vs. C ollecto r-E m itte r vo ltageC o l l e c t o r C u r r e n t : I c (A )C ollector-E m itter voltage : V ce (V )102030405060708000.51 1.52 2.53Collecto r current vs. Collector-Emitte r voltageC o l l e c t o r C u r r e n t : I c (A )C ollector-Em itter voltage : Vce (V)101001000100001020304050607080S witc h in g tim e vs. C o lle cto r c u rre n t E d c=600V ,V cc=15V ,Tj=25°CS w i t c h i n g t i m e : t o n ,t o f f ,t f (n S e c)C o llec tor cu rrent : Ic (A )1010010001000001020304050607080S witch ing tim e vs. Co llector c urrent E dc =600V ,V cc=15V,Tj=125°CS w i t c h i n g t i m e : t o n ,t o f f ,t f (nS e c )C ollector current : Ic (A)102030405060708000.51 1.52 2.53Fo rward cu rre nt vs. Forward voltageF o r w a r d C u r r e n t : I f (A )Forward voltage : Vf (V)10100100001020304050607080R everse recovery ch aracteristicstrr,Irr vs. IFR e v e r s e r e c o v e r y c u r r e n t : I r r (A )R e v e r s e r e c o v e r y t i m e : t r r (n S e c )F o rward cu rre nt : IF(A )6MBP50RA120IGBT -IPM100200300400500600700R eve rsed biased sa fe opera tin g areaV cc=15V,Tj 125°CC o l l e c t o r c u r r e n t : I c (A )C o lle cto r-E m itte r vo lta g e : V c e (V )50100150200250300350400020406080100120140160Powe r derating for IGBT(per device)C o l l e c t e r P o w e rD i s s i p a t i o n : P c (W )Case T em perature : T c (°C)0255075100125150020406080100120140160P ower de ra ting for F W D(pe r d evice)C o l l e c t e r P o w e rD i s s i p a t i o n : P c (W )C ase T em perature : T c (°C)51015202501020304050607080Switching Los s vs. C ollec tor C urrentEdc =600V ,Vcc=15V,Tj=25°CS w i t c h i n g l o s s : E o n ,E o f f ,E r r (m J /c y c l e )C o lle ctor cu rrent : Ic (A)51015202501020304050607080S w itchin g L os s vs. C ollec tor C u rrent E dc =600V ,V cc=15V ,Tj=125°CS w i t c h i n g l o s s : E o n ,E o f f ,E r r (m J /c y c l e )C o lle ctor cu rre nt : Ic (A )=<0.010.110.0010.010.11T h e r m a l r e s i s t a n c e : R t h (j -c ) (°C /W )P ulse width :P w (sec)6MBP50RA120IGBT-IPM050100150200020406080100120140O ver current protection vs. Junction tem peratureVcc=15VJunction tem perature : Tj(°C )O v e r c u r r e n t p r o t e c t i o n l e v e l : I o c (A )。
MKS πMFC (mass flow controller) 商品说明书

MFCMODEL PFC-50 AND PFC-60πW W W .M K S I N S T .C O MFlow DIS C O N T I N U E DThe next generation MKS πMFC (mass flow controller) includes technology improvements in functionality and performance to help users in semiconductor and high purity thin-film applications increase tool throughput and reduce overall system costs. Real-time accurate flow control that is insensitive to upstream and downstream pressure disturbances is provided through advanced digital algorithms. Enabling real-time control of process gas flow, accuracy and repeatability is significantly improved over conventional PID based digital MFCs, resulting in better chamber matching.Cost savings to users are seen through several innovative enhancements. T o reduce the number of MFCs in inventory, users can access specific MFC gas calibrations and flow ranges from up to 31 stored gas tables, configuring the πMFC right off the shelf. The integrated pressure sensor and local LED display help to reduce the number of components required in a gas stick. A web based browser interface allows for setup and troubleshooting of MFCs in-situ, thereby reducing the number of “No Problem Found” MFC replacements and the need to break the process gas line.The πMFC represents MKS’ ongoing dedication to helping customers increase productivity while reducing system costs.DescriptionFeatures & BenefitsIncreases Throughput and Perf ormance • Insensitive to upstream and downstream pressure disturbances— Accurate flow control without the need for additional dedicated line pressure regulators• Enables better chamber matching through increased MFC accuracy of any process gas• Increases tool uptime through reduction of “No Problem Found” MFC replacements—Includes embedded diagnostics software that allows users to check MFC functionality without removing the MFC—E-diagnostics through embedded Ethernet interface Reduces Overall Costs• Reduces MFC inventory through multi-gas, multi- range availability• Enables reduction in number of gas stick components needed, such as pressure regulators, filters, and pressure transducers• Minimizes overall footprint of gas delivery moduleEasy to Integrate and Operate• Straightforward configuration and diagnostics through Ethernet interface — U ses standard web browser – no special software required—Includes remote PC application• Easy viewing of line pressure, flow rate, gas type, full scale flow range and Ethernet address with bright LED displayπMFC with Integrated Display —Ethernet e-diagnostics interface and DNET control optionDI SC ONT I NUE DDescription (cont’d)As a technology leader in MFCs, the πMFC represents the latest in cost effective technology and innovation to meet production needs.The performance of the πMFC is quickly apparent where short process steps are required. The ability to provide accurate and real-time control of high molecular weight gas applications differentiates πMFC from other market brands. This results in precise etch rates and controlled deposition for most critical semiconductor processes.T o enable ease of integration into next generation or existing process tools, a variety of mechanicalconfigurations exist, including surface mount and VCR ®. Coupled with its compact size, the πMFC provides an ideal way to migrate from existing analog MFCs where reducing MFC inventory and improving process repeatability are important.T o ensure that customers can easily use the πMFC, the gas selection and full-scale range can be easily selected by the customer to meet specific application requirements (PFC-50). For DeviceNet ™ configurations, this is performed through the DeviceNet protocols or Ethernet interface. For analog I/O users, setup is achieved via Ethernet on or off the tool. Users can configure the πMFC directly through the separate embedded Ethernet port using a standard web browser – no special software is required.The embedded Ethernet port also offers e-diagnostics capability for maintenance and troubleshooting – without interrupting πMFC operation. Password protected, theconfiguration mode provides access to all device functions, live updates, and real-time plotting of pressure and flow conditions.Our award winning manufacturing facility is well versed in producing high quality MFCs to meet the demands of critical ultra-high purity applications. πMFCs aremanufactured in our Class 100 cleanroom, in accordance with ISO 9001 procedures. With short lead times to allow you to meet your ever changing delivery schedules, the πMFC meets your business requirements as well as your technical specifications.Designed with production requirements in mind, the πMFC offers process reliability and device flexibility for all yourgas delivery applications.Figure 1 —πMFC User Interface Screen illustrating DeviceNet ™ parametersFigure 2 —πMFC User Interface Screen demonstrating real-time charting of pressure and flow rate.DI SC ON T I NUE DPerformanceFull Scale Flow Ranges (N 2 equivalent) 5 - 50000 sccm (consult factory for available flow ranges)Maximum Inlet Pressure 150 psig (can not exceed pressure differential requirement across MFC)Normal Operating Pressure Differential 10 to 5000 sccm; 10 to 40 psid (with atmospheric pressure at the MFC outlet) 10000 to 30000 sccm; 15 to 40 psid Proof Pressure 1000 psig Burst Pressure 1500 psig Control Range 2% to 100% of F .S.Typical Accuracy ± 1% of setpoint for > 20 to 100% F .S. ± 0.2% of F .S. for 2 to 20% F .S.Repeatability ± 0.3% of Reading Resolution 0.1% of ReadingTemperature CoefficientsZero < 0.05% of F .S./°C Span < 0.08% of Rdg./°C Inlet Pressure Coefficient < 0.02% of Rdg./psi Typical Controller Settling Time < 1.5 sec typical above 5% F .S. (per SEMI Guideline E-17-0600)Warm-up Time < 30 min (to within 0.2% of F .S. of steady state performance)Normal Operating Temperature Range 10°C to 50°C Storage Humidity 0 to 95% Relative Humidity, non-condensing Storage Temperature -20° to 65°C (-4° to 149° F)Pressure Display 0 to 100 psia Pressure Readout Units psia, kPA Pressure Accuracy 1% of Reading Pressure Resolution 0.1 psia Temperature Display 0 to 100°C Temperature Readout Units °C Temperature Accuracy ± 2°C Temperature Resolution 0.1°CMechanicalFittings (compatible with) Swagelok ® 4 VCR ®, 1-1/8” surface mount (C-seal, W-seal)Display4 digits for value, 4 characters for unit Leak Integrity External (scc/sec He) < 1 x 10-10 Through closed valve < 1.0% of F .S. at 25 psig inlet to atmosphere(To assure no flow-through, a separate positive shut-off valve is required.)Wetted Materials Standard316L S.S. VAR (equivalent to 316 S.S. SCQ for semiconductor quality), 316S.S., Elgiloy, KM-45, Inconel ®, 825 Incoloy ® Optional (Valve Seat) PTFE (Teflon) or Sapphire (Metal)Surface Finish 5µ inch average Ra Weightless than 3 lbs (1.4kg)DI SC ONT INUE DSpecificationsElectricalAnalog I/OInput Voltage Required Max. current at start-up (first 5 sec) +15 VDC (±5%) @ 350 mA Typical current at steady state +15 VDC (±5%) @ 250 mA Set Point Command Signal 0 to 5 VDC Flow Output Signal 0 to 5 VDC Pressure Output 0 to 10 VDC, 0 to 5 VDC, 4-20mA Output Impedance < 1 ΩConnectors 15-pin Type “D”, 9-pin T ype “D”Electromagnetic CompatibiltyCE compliant to EMC Directive 2004/108/EC when used with an overall metal braidedshielded cable, properly grounded at both endsDigital I/O (DeviceNet)Data Rate/Network LengthData Rate (user selectable) 125 Kbps, 500 m (1,640 ft.) 250 Kbps, 250 m (820 ft.)500 Kbps, 100m (328 ft.)Level of FilteringUser software adjustableDigital Functions (flow) Select units: counts, slm, sccm, % of F .S. Remote ZeroSet/read flow rateFlow totalizer and run hours Valve soft startMonitor MFC status - valve drive level and trip points (alarm for high flow, alarm for low flow, warning for high flow, warning for low flow) Overrange, Underange Reset factory defaults Report run time hoursChange user tags and device addressDevice Identification Storage includes manufacturer information, model and serialnumber, original factory calibration, software and hardware revision numbers.Digital Functions (pressure) Alarm enable, Warning enableAlarm settling time, Warning settling time Alarm trip point high, Warning trip point high Alarm trip point low, Warning trip point lowZero adjustDigital Functions (temperature) Alarm enable, Warning enableAlarm settling time, Warning settling time Alarm trip point high, Warning trip point high Alarm trip point low, Warning trip point lowZero adjustData Rate Switch 4 positions: 125, 250, 500K, PGM(programmable over the network)MAC ID Switches 2 switches, 10 positions; 0,0 to 6,3 are hardware ID numbers; 7,0 to 9,9 are software ID numbers (6,4 to 6,9 are unused and, if selected will default tohardware ID number 6,3)Input Power 11 to 25 VDC per DeviceNet specification (@ <3.5 watts)Network SizeUp to 64 nodesNetwork TopologyLinear (trunkline/dropline) power and signal on same network cable Visual Communication Indicators LED network status (green/red)LED module status (green/red)DI SC ONT INUE DDimensional Drawing and PinOuts—DownMount Version with DeviceNet ™Note: Unless specified, dimensions are nominal values in inches (mm referenced).Dimensional Drawing and PinOuts—Swagelok ® 4 VCR ® Version with Analog 9 Pin DNote: Unless specified, dimensions are nominal values in inches (mm referenced).D I SC O N T I N UE D6Ordering Inf ormation013T 21502C P5A Ordering Code Example: P5A013502C6T021 CodeConfiguration T ype πMFC Mass Flow Controller (multigas, multi-range) PFC-50 P5AT ype πMFC Mass Flow Controller (multigas, pressure insensitive) PFC-60 P6A Gas (see gas chart on page 8 for configuration) For example:013 = Nitrogen = N 2 013029 = Ammonia = NH 3 029110 = Sulfur Hexafluoride = SF 6 110Flow Range Full Scale* 5 sccm500 10 sccm 101 20 sccm 201 50 sccm 501 100 sccm 102 200 sccm 202 500 sccm 502 1000 sccm 103 2000 sccm 203 5000 sccm 503 10000 sccm 104 20000 sccm 204 30000 sccm 30450000 sccm504Fittings (compatible with) Swagelok 4 VCR R C-seal CW-sealH ConnectorDeviceNet 6 RS485 515 pin D (Analog I/O) B9 pin D (Analog I/O)A Valve Normally Closed, Metal (sapphire): (10 sccm - 10 slm N 2 equivalent) MNormally Closed, T eflon ®:: (10 sccm - 30 slm N 2 equivalent) TReserved for MKS Future Use StandardFirmware Unless otherwise specified, MKS will ship firmware revision 21current to date (DeviceNet only)* The Full Scale Flowrate is designated by a 3 digit number. The first two digits represent the significant digits of the Full Scale flow rate separated by a decimal point. The third digit is the exponent of the power of ten.Example Flowrate code:254 is 2.5 x 104 or 25000 sccm 153 is 1.5 x 103 or 1500 sccm601 is 6.0 x 101 or 60 sccmDI SC ONT INUE DGas Code ConfigurationGas Code Symbol Acetone 184 C3H6O Acetylene 042 C2H2 Air 008 Air Allene 066 C3H4 Ammonia 029 NH3 Argon 004 Ar Arsine 035 AsH3 Boron Trichloride 070 BCl3 Boron Trifluoride 048 BF3 Bromine 021 Br2 Bromine Pentafluoride 116 BrF5 Bromine Trifluoride 076 BrF3 Bromotrifluoromethane (R-13b1) 080 CBrF3GasHydrogen Sulfide Iodine Pentafluoride Isobutane Isobutylene Krypton Methane Methanol Methyl Acetylene Methyl Bromide Methyl Chloride Methyl Fluoride Methyl Mercaptan MethylamineD。
成都七中初中初二半期数学试卷及解析

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N80套管机械性能

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文/中国物流与采购联合会中国物流与采购联合会、国家统计局服务业调查中心发布的201 5年7月份中国制造业采购经理指数(pmi)为50.0%,比上月下降0.2个百分点。
从12个分项指数来看,同上月相比,供应商配送时间、生产经营活动预期指数略有上升;生产、新订单、出口、积压订单、采购量、进口、购进价格、原材料库存、从业人员指数小幅下降。
其中,购进价格指数降幅较为明显,下降2.6个百分点。
特约分析师张立群认为:“7月份pmi指数小幅下降,但仍在50%的荣枯线上,表明未来经济增长总体仍然趋稳,但稳定的基础不够巩固。
7月份pmi中各项订单指数均小幅下降,显示国内外市场需求水平仍不够稳定;虽然产成品库存指数小幅下降,但采购量指数、原材料库存指数、进口指数等都小幅下降,反映企业信心不足,去库存活动仍有可能继续。
针对pmi指数表现的问题,应抓紧落实好稳增长的各项政策措施,着力提高政策效果。
”生产指数为52.4%,比上月下降0.5个百分点。
从企业规模来看,大型企业和中型企业生产指数高于50%,指数分别为53.4%和52.9%;小型企业低于50%,指数为46.8%。
新订单指数为49.9%,比上月下降0.2个百分点。
从企业规模来看,大型企业新订单指数高于50%,指数为51%;中型企业和小型企业低于50%,指数分别分49.7%和45.3%。
新出口订单指数为47.9%,比上月下降0.3个百分点。
从企业规模来看,大型企业、中型企业和小型企业新出口订单指数均低于50%,指数分别为48.2%、47.8%和44.1%。
积压订单指数为44.0%,比上月下降0.6个百分点。
从企业规模来看,大型企业、中型企业和小型企业积压订单指数均低于50%,指数分别为45.1%、42.6%和41. 7%。
产成品库存指数为47.4%,比上月下降0.3个百分点。
从企业规模来看,大型企业、中型企业和小型企业产成品库存指数均低于50%,指数分别为48.1%、47.9%和43.3%。
采购量指数为50.3%,比上月下降0.6个百分点。
从企业规模来看,大型和中型企业采购量指数高于50%,分别为51.3%和50.4%;小型企业低于50%,为45.4%。
进口指数为47.8%,比上月下降0.2个百分点。
从企业规模来看,大型企业、中型企业和小型企业进口指数均低于50%,指数分别为47.9%、47.3%和48.2%。
购进价格指数为44.7%,比上月下降2.6个百分点。
从企业规模来看,大型企业、中型企业和小型企业购进价格指数均低于50%,指数分别为43.5%、45.6%和48.4%。
原材料库存指数为48.4%,比上月下降0.3个百分点。
从企业规模来看,大型企业、中型企业和小型企业的原材料库存指数均低于50%,指数分别为48.3%、48.4%和48.8%。
从业人员指数为48.0%,比上月下降0.1个百分点。
从企业规模来看,大型、中型和小型企业的从业人员指数均低于50%,指数分别为48.6%、47.5%和46.5%。
供应商配送时间指数为50.4%,比上月上升0.1个百分点。
从企业规模来看,大型、中型和小型企业的供应商配送时间指数均高于50%,分别为50.5%、50.1%和50.4%。
生产经营活动预期指数为52.9%,比上月上升0.7个百分点。
从企业规模来看,大型和中型企业生产经营活动预期指数高于50%,指数分别为53.4%和53.8%;小型企业低于50%,指数48.7%。