标准编号：ISO 14104:2014
中文名称：齿轮 磨光后的表面回火侵蚀检查 化学法
英文名称：Gears — Surface temper etch inspection after grinding, chemical method
发布日期：2014-06
标准范围
This International Standard specifies procedures and requirements for the detection and classificationof localized overheating on ground surfaces by chemical etch methods.The process described in this International Standard is typically used on ground surfaces; however, it isalso useful for the detection of surface anomalies that result from post-heat treatment machining suchas hard turning, milling, and edge breaking (deburring) processes. Surface metallurgical anomaliescaused by carburization or decarburization are also readily detectable with this process.Some methods which have been used in the past are no longer recommended. Specifications areintended to be changed to use the methods in this International Standard. These etching methods aremore sensitive to changes in surface hardness than most hardness testing methods.This International Standard applies to steel parts such as gears, shafts, splines, and bearings. It is notapplicable to nitrided parts and stainless steels. Alternative methods should be considered.NOTE This process, although at times called “nital etch”, is not intended to be confused with other processesalso known as “nital etch”.The surface temper etch procedure is to be performed after grinding and before additional finishingoperations such as superfinishing, shot peening, and honing.
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