平面彈簧扁鋼技術條件內(nèi)容

1、平面彈簧扁鋼技術條件NGNK01920081本標準適用于熱軋平面彈簧扁鋼。1、尺寸、外形及允許偏差、尺寸、外形及允許偏差1.1彈簧扁鋼的截面形狀應符合圖1的規(guī)定。B——扁鋼的寬度H——扁鋼的厚度R——扁鋼側面圓?。≧只在孔型上控制，不作為驗收條件。R≈12H）圖1平面彈簧扁鋼1.2彈簧扁鋼的尺寸及允許偏差應符合表1的規(guī)定。表1彈簧扁鋼的尺寸及允許偏差mm允許偏差允許偏差允許偏差截面尺寸（mm）寬度≤50截面尺寸（mm）寬度＞50~60截

2、面尺寸（mm）寬度＞60~706~80.156~70.156~70.18＞8~120.18＞7~90.18＞7~120.20＞12~200.20＞9~200.20＞12~200.25＞20~300.20＞20~300.25＞20~300.30厚度＞30－＞30－＞300.30寬度≤500.55＞50~600.60＞60~700.75允許偏差允許偏差允許偏差允許偏差截面尺寸（mm）寬度＞70~80截面尺寸（mm）寬度＞80~90截面尺寸（

3、mm）寬度＞90~100截面尺寸（mm）寬度＞1008~100.207~120.207~120.207~120.20＞10~120.25＞12~200.25＞12~200.25＞12~200.25＞12~200.30＞20~300.30＞20~300.30＞20~300.30＞20~300.35厚度＞300.35＞300.35＞300.35＞300.40寬度＞70~800.80＞80~900.80＞90~1000.80＞1001.01.

4、3彈簧扁鋼的平面厚度差，在寬度的兩端測量時，應不大于厚度公差的25%（但最小值為0.1mm），寬面中部不得凸起。1.4彈簧扁鋼每米長度的側向彎曲度（鐮刀彎）不大于3mm，總側彎度不大于扁鋼總長度的0.30%mm。平彎：扁鋼厚度＜7，不大于5.0mmm，扁鋼厚度≥7不大于4.0mmm。平面彈簧扁鋼技術條件NGNK01920083表2.2日標彈簧扁鋼化學成份（JISG48012005）%NiCuPS標準牌號適用厚度CSiMnCrV不大于日標

5、SUP60.56~0.641.50~1.800.70~1.000.300.300.0300.030內(nèi)控SUP60.56~0.601.50~1.650.70~0.800.12~0.180.300.200.0200.020日標SUP90.52~0.600.15~0.350.65~0.950.65~0.950.300.300.0300.030SUP9≤160.52~0.560.17~0.350.70~0.800.70~0.800.300.20

6、0.0200.020內(nèi)控SUP9b＞160.53~0.570.17~0.350.75~0.850.75~0.850.300.200.0200.020日標SUP9A0.56~0.640.15~0.350.70~1.000.70~1.000.300.300.0300.030SUP9A≤180.56~0.600.17~0.350.75~0.850.75~0.850.300.200.0200.020內(nèi)控SUP9Ab＞180.57~0.610.1

7、7~0.350.80~0.900.80~0.900.300.200.0200.020日標SUP100.47~0.550.15~0.350.65~0.950.80~1.100.15~0.250.300.300.0300.030SUP10≤180.47~0.510.17~0.350.75~0.900.85~1.050.15~0.200.300.200.0200.020內(nèi)控SUP10b＞180.48~0.520.17~0.350.80~0.9

8、50.95~1.100.15~0.200.300.200.0200.020表2.3德標彈簧扁鋼化學成份（EN10089:2002DIN）%NiCuPS標準牌號適用厚度CSiMnCrV不大于德標51CrV40.47~0.55≤0.400.70~1.100.90~1.200.10~0.25Cu10Sn≤0.600.0250.02551CrV4≤180.47~0.510.17~0.350.75~0.850.95~1.050.12~0.180.

9、300.200.0200.020內(nèi)控51CrV4b＞180.48~0.520.17~0.350.85~0.951.00~1.100.14~0.200.300.200.0200.020德標55Cr30.52~0.59≤0.400.70~1.000.70~1.00Cu10Sn≤0.600.0250.025內(nèi)控55Cr30.52~0.560.17~0.350.75~0.850.75~0.850.300.200.0200.020德標61SiCr

10、70.57~0.651.60~2.000.70~1.000.20~0.45Cu10Sn≤0.600.0250.025內(nèi)控61SiCr70.57~0.611.60~1.750.70~0.800.25~0.350.300.200.0200.020表2.4美標彈簧扁鋼化學成份（ASTMA32291、ASTMA30405）%NiCuPS標準ASTM牌號SAE牌號適用厚度CSiMnCrAlNb不大于美標5160HSAE5160H0.55~0.65

11、0.15~0.350.65~1.100.60~1.000.250.350.0250.025協(xié)議5160HSAE5160H0.55~0.650.15~0.350.65~1.100.60~1.000.300.200.0250.0255160HSAE5160H≤15.50.55~0.590.20~0.350.75~0.850.80~0.900.300.200.0200.020內(nèi)控5160HbSAE5160Hb＞15.50.56~0.600.2