JIS B 1756:2008
齿轮.磨削后表面回火腐蚀的检验

Gears -- Surface temper etch inspection after grinding

作废

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标准号

JIS B 1756:2008

发布

2008年

发布单位

日本工业标准调查会

替代标准

JIS B 1756:2017

当前最新

JIS B 1756:2017

 

 

适用范围

This Standard specifies the inspection procedure, inspection criteria, classi- fication, etc. for detecting the localized overheating on ground gear surfaces by chemi- cai etching. The etch inspection according to this Standard is more sensitive to the surface hard- ness change than most hardness tests. Therefore, for the detection of surface temper after grinding, the inspection method in this Standard should be used. Although this Standard applies to steel gears, it may also apply to steel parts such as shafts, splines, bearings, but is not applicable to nitrided parts and stainless steels. This etch inspection shall be performed after grinding and before additional finishing operations. NOTES I In this Standard, this inspection is called "nital etch" and should not be confused with the conventional etch methods generally used to ob- serve metallographic structure. The International Standard corresponding to this Standard is as fol- lows. In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISOfIEC Guide 21. ISO 14104: 1995 Gears- Surface temper etch inspection after grind- ing (MOD)

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