紧固件国家标准的变化对企业的影响

Effects on Enterprises Caused by Changes of CHINA National Standards of Fasteners

综合论述了紧固件国家标准在机械性能等级、适用范围、验收检查标准、产品重量、表面粗糙度、尺寸公差表示法、产品品种和等级、螺纹组合件、尺寸和规格、术语等方面对企业的影响。本企业尤其要注意国家标准不适合于高温范围、可焊接和耐腐蚀性的紧固件。

This article comprehensively describes the mechanical property grades, scope, acceptance in spection criterion, products weight, surface roughness, representation of tolerances for size, products cat egories and grades, thread assemblies, dimension and size, nomenclature etc. of the National Standards of Fasteners and the effect of which on enterprises. Especially attention shall be taken that the National Standards of Fasteners can not be used for high temperature operation, weldability and corrosion resis tance fasteners by enterprises.