Standard No.:	JB/T 3906-1999
English Name:	General specifications of cast magnesium alloys of rock drilling machines and pneumatic tools
Chinese Name:	凿岩机械与气动工具 镁合金铸件通用技术条件
Chinese Classification:	J84    Rock drilling machinery
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	73.100.10 73.100.10    Tunnelling and tubing equipment 73.100.10
Issued by:	National Technical Committee on Standardization of Drilling Machinery and Pneumatic Tools
Issued on:	1999-06-28
Implemented on:	2000-1-1
Status:	superseded
Superseded by:	JB/T 3906-2011 General specifications of casting of magnesiumalloy of rock drilling machines and pneumatic tools
Superseded on:	2011-8-1
Abolished on:	2011-08-01
Superseding:	JB 3906-1985
Language:	English
File Format:	PDF
Word Count:	8500 words
Price(USD):	570.0
Delivery:	via email in 1~3 business day

JB/T 3906-1999 本标准是对 JB 3906-85《凿岩机械与气动工具 镁合金铸件通用技术条件》的修订。 本标准规定了凿岩机械与气动工具镁合金铸件分类，化学成分，力学性能，铸件尺寸，表面质量，内部质量，缺陷修正和铸件交付等内容。 本标准适用于凿岩机械与气动工具砂型或金属型镁合金铸件。 本标准于 1985 年 8 月 日首次发布。