The test results shows that the lif

The test results shows that the life value of tap is various with different machined material: for 30CrMnTi, the life of tap prolongs 1.43 times with cryogenic treatment arranged before tempering and 61% with cryogenic treatment after tempering; for1Cr18Ni9Ti, the life of tap prolongs 1.08 times with cryogenic treatment arranged before tempering and 46% with cryogenic treatment after tempering; for 5CrMnMo, the life of tap prolongs 1.65 times with cryogenic treatment arranged before tempering and 89% with cryogenic treatment after tempering.
Conclusion

結果 (中文) 1:

试验结果表明，自来水的生命价值是各种不同的加工材料: 30CrMnTi，水龙头的生活与冷处理冷处理后回火; 回火和 61%之前安排延长 1.43 倍for1Cr18Ni9Ti，水龙头的生命延长 1.08 倍冷处理之前回火和 46%设有冷处理后回火;为 5CrMnMo，水龙头的生活与之前回火和 89%设有回火后深冷处理深冷处理可延长 1.65 倍。结论

結果 (中文) 3:

试验结果表明，丝锥寿命值是各种不同加工材料：30CrMnTi合金，丝锥寿命延长1.43倍，深冷处理和深冷处理回火前61%回火后安排；for1cr18ni9ti，丝锥寿命延长1.08倍，深冷处理和深冷处理回火前46%回火后安排；5CrMnMo、丝锥寿命延长1.65倍，低温处理前回火和深冷处理回火后安排89%。结论