Standard No.:	JB/T 9704-1999
English Name:	Metallographic examination for smooth-edge knife of reciprocating mower
Chinese Name:	往复式割草机 光刃动刀片 金相检验
Chinese Classification:	B91    Farming machinery and tools
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	65.060.50 65.060.50    Harvesting equipment 65.060.50
Source Content Issued by:	Hohhot Animal Husbandry Machinery Research Institute
Issued on:	1999-08-06
Implemented on:	2000-1-1
Status:	superseded
Superseded by:	JB/T 9704-2010 Metallographic examination for smooth-edge knife of reciprocating mower
Superseded on:	2010-7-1
Abolished on:	2010-07-01
Superseding:	ZB B92004-1987
Target Language:	English
File Format:	PDF
Word Count:	3500 words
Translation Price(USD):	220.0
Delivery:	via email in 1~3 business day

JB/T 9704-1999 本标准是对 ZB B92 004-87《往复式割草机光刃动刀片 金相检验标准》的修订。修订时仅按有关规定作了编辑性修改主要技术内容没有变化。 本标准规定了往复式割草机光刃动刀片经高频感应加热，下贝氏体等温淬火后的金相组织检验方法。 本标准适用于碳素工具钢制造的往复式割草机光刃动刀片的金相组织检验。 本标准于 1987 年 6 月 2 日首次发布。