JB/T 9704-1999
Metallographic examination for smooth-edge knife of reciprocating mower (English Version)

Standard No.

JB/T 9704-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Machinery

Status

Be replaced 2010-07

Replace By

JB/T 9704-2010

Latest

JB/T 9704-2010

Scope

This standard specifies the inspection method for the metallographic structure of reciprocating lawn mower smooth blades after high-frequency induction heating and lower bainite isothermal quenching. This standard is applicable to the metallographic structure inspection of reciprocating lawn mower smooth blades made of carbon tool steel.

JB/T 9704-1999 history

• 2010 JB/T 9704-2010 Metallographic examination for smooth-edge knife of reciprocating mower
• 1999 JB/T 9704-1999 Metallographic examination for smooth-edge knife of reciprocating mower