鑄鐵平板類（量具）平板（平臺）SurfacePlate　　按JB/T7974-99標準制造產品制成筋板式和箱體式工作面有長方形材料HT200工作面采用刮平工藝工作面上可加工V形T型U型槽和圓孔長孔等平板是用于工件檢測或劃線的平面基準器具平板安裝應調至水平負荷均勻分布于各支點上環境溫度（20±5℃）使用時應避免振動　　MadeaccordingtoStandardJB/T7974-99,ribtypeorcasetype,rectangle/square/roundworkingsurface,material:HT200,Workingsrufacemadebyskiving,grooveV/T/Ushapeandholeoflong-roundshapecanbemadeatthesurfaceoftheplate.Thesurfaceplateisaplanestandardequipmentusedfortestinganadrawingofworkpiecesonit.Thesurfaceplateshallbeadjustedtohorizontalpositionandloadedevenlyoneachpivot.Environmentaltemperature20±5℃,andvibrationshallbeavoidedwhenusing.筋式鑄鐵平板（JB/T7974-99）（單位塊）　　平板是檢驗機械零件平面度平行度直線度等形位公差的測量基準也可用于精密零件的劃線和測量（分為A型和B型）　　此類結構平板是本廠多年試驗改進而成平面精度極為穩定更適合精密零件檢測　　材質HT200-300　　硬度HB170-210訂貨號規格（長×寬）mm精度等級板面厚度（mm）總高度（mm）鑄鐵凈重（kg）0123平面度公差（um）HT01-001100×1004.69.0181050HT01-002100×2004.99.819.61050HT01-003200×20051020.51050HT01-004200×3005.511221050HT01-005300×3005.51122108015HT01-006300×40061224108520HT01-007400×4006.512.525128528HT01-008400×5006.5132666129040HT01-009500×5006.8142868149555HT01-010400×60071427.570159562HT01-011500×600714.228.5711612090HT01-012500×800815.5317816140155HT01-013600×800816328018160185HT01-014600×9008.316.5338322160200HT01-0151000×750918369024180350HT01-0161000×8009.519389324180370HT01-0171000×10001020409724180430HT01-0181000×12001020.54110325180565HT01-0191000×150011224511228220780HT01-0201000×2000265213032240900HT01-0211500×20002856140352601200HT01-0222000×2000316115335HT01-0232000×2500346716838HT01-0241500×3000357017440HT01-0252000×3000377418440HT01-0262000×4000448821945HT01-0272500×60006012030045HT01-0283000×60006212430845箱型鑄鐵平板（JB/T7974-99）（單位塊）　　平板是檢驗機械零件平面度平行度直線度等形位公差的測量基準也可用于精密零件的劃線和測量　　可生產4000-8000米各種平臺訂貨號規格（長×寬）mm精度等級備注0123平面度公差（um）HT02-029100×1004.69.118.3HT02-030100×2004.99.819.6HT02-031200×20051020.5HT02-032200×3005.51122HT02-033300×3005.51122HT02-034300×40061224HT02-035400×4006.512.525HT02-036400×5006.5132666HT02-037500×5006.8142868HT02-038400×60071427.570HT02-039500×600714.228.571HT02-040500×800815.53178HT02-041600×8008163280HT02-042600×9008.316.53383HT02-0431000×7509183690HT02-0441000×8009.5193893HT02-0451000×100010204097HT02-0461000×12001020.541103HT02-0471000×1500112245112HT02-0481000×20002652130HT02-0491500×20002856140HT02-0502000×20003161153HT02-0512000×25003467168HT02-0521500×30003570174HT02-0532000×30003774184HT02-0542000×40004488219HT02-0552500×600060120300HT02-0563000×600062124308鑄鐵研磨平板（JB/T7974-99）（單位塊）　　按JB/T7974-99標準制造工作面用研磨工藝用于制作的研磨量具修理用本產品研磨后的制件表面粗糙度Ra≤0.08μm　　MadeaccordingtoStandardJB/T7974-99,workingsurfacemadebyskiving,usedforrubbingofworkpieceandrepairingofmeasuringtools.ThesurfaceroughnessofworkpieceafterwubbingonthisplatecanreachRa≤0.08μm.訂貨號規格（長×寬）mm精度等級0123平面度公差（um）HT03-057100×1004.69.118.3HT03-058100×2004.99.819.6HT03-059200×200510.320.5HT03-060200×3005.510.921.8HT03-061300×3005.511.422.8HT03-062300×40061224HT03-063400×4006.512.525.1HT03-064400×5006.513.126.265.6HT03-065400×6006.813.727.368.3HT03-066500×500713.827.568.8HT03-067500×600714.228.571.2HT03-068500×800815.53178