Effects of different tempering processes on surface microstructure of indefinite chill cast-iron roller were studied.
研究了回火工艺对无限冷硬轧辊表层基体组织的影响。
The Influence of the quenching and tempering treatment and the different subcritical treatment on microstrcture and property of a high alloy white cast iron was studied.
研究表明，通过亚临界热处理可以使含有大量残留奥氏体的高铬铸铁产生二次硬化，从而提高高铬铸铁的硬度和耐磨性。
Tempering of the machine bed is carried out twice to ensure stability. The tempering process changes the internal structure of the iron making it more durable and rigid.
机床整体床身重，同时床身制造过程中采用二次淬火工艺，从而改变了铁的内部结构，使之更加耐冲压，刚性上有显著提高。
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