Standard No.:	JB/T 8825.6-1998
English Name:	Thread rolling flat dies for whitworth threads
Chinese Name:	惠氏螺纹搓丝板
Chinese Classification:	J41    Cutting tools
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	25.100.50 25.100.50    Taps and threading dies 25.100.50
Issued by:	National Technical Committee on Standardization of Cutters
Issued on:	1998-12-29
Implemented on:	1999-7-1
Status:	superseded
Superseded by:	JB/T 8825.6-2011 Tool for whitworth threads — Part 6：Thread rolling flat dies
Superseded on:	2012-4-1
Abolished on:	2012-04-01
Language:	English
File Format:	PDF
Word Count:	11000 words
Price(USD):	384.00
Delivery:	via email in 1~5 business day

JB/T 8825.6-1998 本标准规定了惠氏螺纹搓丝板的型式和尺寸、技术要求和标志包装等的基本要求。 本标准适用于加工惠氏螺纹（BS 84-1956）的搓丝板。搓丝板分为两种精度等级：2 级和 3 级。2 级适用于加工中等级外螺纹，3 级适用于加工自由级外螺纹。 本标准于 1998 年 12 月 29 日首次发布。