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铸铁平板类（量具） 平板（平台）SurfacePlate　　按JB/T7974-99标准制造，产品制成筋板式和箱体式，工作面有长方形，材料HT200，工作面采用刮平工艺，工作面上可加工V形、T型、U型槽和圆孔、长孔等。平板是用于工件检测或划线的平面基准器具。平板安装应调至水平、负荷均匀分布于各支点上，环境温度（20 5℃）使用时应避免振动。　　MadeaccordingtoStandardJB/T7974-99,ribtypeorcasetype,rectangle/square/roundworkingsurface,material:HT200,Workingsrufacemadebyskiving,grooveV/T/Ushapeandholeoflong-roundshapecanbemadeatthesurfaceoftheplate.Thesurfaceplateisaplanestandardequipmentusedfortestinganadrawingofworkpiecesonit.Thesurfaceplateshallbeadjustedtohorizontalpositionandloadedevenlyoneachpivot.Environmentaltemperature20 5℃,andvibrationshallbeavoidedwhenusing.筋式铸铁平板（JB/T7974-99）（单位：块）　　平板是检验机械零件平面度、平行度、直线度等形位公差的测量基准，也可用于精密零件的划线和测量。（分为A型和B型）　　此类结构平板是本厂多年试验改进而成，平面精度极为稳定，更适合精密零件检测。　　材质：HT200-300　　硬度：HB170-210订货号规格（长 宽）mm精度等级板面厚度（mm）总高度（mm）铸铁净重（kg）0123平面度公差（um）HT01-001100 1004.69.018 1050 HT01-002100 2004.99.819.6 1050 HT01-003200 20051020.5 1050 HT01-004200 3005.51122 1050 HT01-005300 3005.51122 108015HT01-006300 40061224 108520HT01-007400 4006.512.525 128528HT01-008400 5006.5132666129040HT01-009500 5006.8142868149555HT01-010400 60071427.570159562HT01-011500 600714.228.5711612090HT01-012500 800815.5317816140155HT01-013600 800816328018160185HT01-014600 9008.316.5338322160200HT01-0151000 750918369024180350HT01-0161000 8009.519389324180370HT01-0171000 10001020409724180430HT01-0181000 12001020.54110325180565HT01-0191000 150011224511228220780HT01-0201000 2000 265213032240900HT01-0211500 2000 2856140352601200HT01-0222000 2000 316115335 HT01-0232000 2500 346716838 HT01-0241500 3000 357017440 HT01-0252000 3000 377418440 HT01-0262000 4000 448821945 HT01-0272500 6000 6012030045 HT01-0283000 6000 6212430845 箱型铸铁平板（JB/T7974-99）（单位：块）　　平板是检验机械零件平面度、平行度、直线度等形位公差的测量基准，也可用于精密零件的划线和测量。　　可生产4000-8000米各种平台订货号规格（长 宽）mm精度等级备注0123平面度公差（um）HT02-029100 1004.69.118.3 HT02-030100 2004.99.819.6 HT02-031200 20051020.5 HT02-032200 3005.51122 HT02-033300 3005.51122 HT02-034300 40061224 HT02-035400 4006.512.525 HT02-036400 5006.5132666 HT02-037500 5006.8142868 HT02-038400 60071427.570 HT02-039500 600714.228.571 HT02-040500 800815.53178 HT02-041600 8008163280 HT02-042600 9008.316.53383 HT02-0431000 7509183690 HT02-0441000 8009.5193893 HT02-0451000 100010204097 HT02-0461000 12001020.541103 HT02-0471000 1500112245112 HT02-0481000 2000 2652130 HT02-0491500 2000 2856140 HT02-0502000 2000 3161153 HT02-0512000 2500 3467168 HT02-0521500 3000 3570174 HT02-0532000 3000 3774184 HT02-0542000 4000 4488219 HT02-0552500 6000 60120300 HT02-0563000 6000 62124308 铸铁研磨平板（JB/T7974-99）（单位：块）　　按JB/T7974-99标准制造，工作面用研磨工艺用于制作的研磨，量具修理，用本产品研磨后的制件表面粗糙度Ra 0.08 m。　　MadeaccordingtoStandardJB/T7974-99,workingsurfacemadebyskiving,usedforrubbingofworkpieceandrepairingofmeasuringtools.ThesurfaceroughnessofworkpieceafterwubbingonthisplatecanreachRa 0.08 m.订货号规格（长 宽）mm精度等级0123平面度公差（um）HT03-057100 1004.69.118.3 HT03-058100 2004.99.819.6 HT03-059200 200510.320.5 HT03-060200 3005.510.921.8 HT03-061300 3005.511.422.8 HT03-062300 40061224 HT03-063400 4006.512.525.1 HT03-064400 5006.513.126.265.6HT03-065400 6006.813.727.368.3HT03-066500 500713.827.568.8HT03-067500 600714.228.571.2HT03-068500 800815.53178