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一九六九年我国颁布了GB1031—68《表面光洁度》国家标准,它代替国内原使用的机械工业通用标准《表面光洁度等级及代号》(J B178—60)。同时对建立全国统一的表面光洁度的评定基准和表征参数,以及统一设计技术文件中有关表面光洁度概念和标注方法,便于与国际上较多国家和国内各部门之间进行技术交流。现对该标准内容的主要方面略作介绍,以利于使用。
In 1969, China promulgated the GB1031-68 “Surface Finish” national standard, which replaced the original domestic standard of mechanical industry “Surface Finish Grade and Code” (J B178-60). At the same time, the assessment standards and characterization parameters for establishing a uniform surface finish of the whole country and the concept of surface finish and marking methods in the unified design technical documents are also convenient for technical exchanges with more countries in the world and various domestic departments. The standard content of the main aspects are briefly introduced to facilitate the use.