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王:张师付,听说旧表面光洁度国家标准废除了,那么以什么标准代替呢? 张:小王,你谈到的表面光洁度国家标准(GB1031-68)废除后,由国家标准局于1983年制订的三个表面粗糙度国家标准代替,并且于1985年1月1日正式颁布执行了。这种新国标为:(1)表面粗糙度——述语、表面及其参数GB 3505-83;(2)表面粗糙度-参数及其数值GB1031-83;(3)表面粗糙度——代(符)号及其注法GB 131-83。王:表面光洁度为什么要改成表面粗糙度呢? 张:其实,表面粗糙度与表面光洁度一样,都是指零件加工表面上痕迹的粗细与深浅程度。光洁度改为粗糙度的原因是:
Wang: Zhang Shifu, I heard that the old standard of national standards was abolished, then what standards to replace it? Zhang: Xiao Wang, you talked about the surface finish national standards (GB1031-68) abolished by the National Bureau of Standards in 1983 to develop The three surface roughness of the national standard instead, and in January 1, 1985 formally promulgated. This new national standard is: (1) surface roughness - rhetoric, surface and its parameters GB 3505-83; (2) surface roughness - parameters and their values GB1031-83; (3) surface roughness - on behalf of (Symbol) and its notes GB 131-83. Wang: Why should the surface finish be changed to surface roughness? Zhang: Actually, the surface roughness is the same as the surface finish, which refers to the thickness and depth of marks on the part surface. The reason why the finish is changed to roughness is: