螺纹件计量仲裁的实施与判定

Implementation And Judgment Of Measurement Arbitration Of Thread Parts

由于螺纹量具中径公差带的存在,同一螺纹件使用不同螺纹量具检测时会出现两种相反的结论。因此,有管理职责的计量部门需对该螺纹件的合格性进行仲裁。实施过程可分为核对检测判定方法的一致性,再进行螺纹量具的尺寸检测以判定其检测结果的有效性,最后通过零件尺寸检测验证结论。仲裁关键是判定工件螺纹合格的螺纹量具是否符合标准规定,即螺纹量具合格则判定其检测结果有效。

Because of the existence of diameter tolerance zone of thread gauge,two opposite conclusions will appear when the same thread parts is inspected with different thread gauge.The measurement department with management responsi-bility shall arbitrate the conformity of the thread parts.The implementation process can be divided into three steps.Frist,Check the consistency of the test determination method.Then the dimension inspection of the thread gauge is carried out to determine the validity of the test results.Finally,the conclusion will be verified by thread parts dimensional inspection.The key of arbitration is to determine whether the thread gauge meets the standard,which is determines the thread parts to be qualified.that is,if the thread gauge qualified,the test result is valid.