现行 JB/T 12140-2015
小直径挤压丝锥 小直径挤压丝锥 Small size thread forming taps
发布日期:2015-04-30
实施日期:2015-10-01
分类信息
标准简介

本标准规定了用于IT行业的小直径挤压丝锥(普通级和高性能级)的型式尺寸、螺纹公差、技术要求、标志和包装等的基本要求。本标准适用于在有色金属及低强度黑色金属零件上加工公称直径为0.8mm的小螺纹(GB/T 15054.1~GB/T 15054.4)及公称直径1~4mm的普通螺纹(GB/T 192,GB/T 193,GB/T 196,GB/T 197)的小直径挤压丝锥。挤压丝锥加工螺纹时,预制孔的尺寸参见附录B

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丝锥挤压直径

最后更新时间 2025-09-02