The induction heating equipment and heat treatment process of thick-wall pipe were reconstructed.
对厚壁管感应加热设备及热处理工艺进行了重新设计改造。
The effect of preheating treatment process of cold rolls on induction heat quenched structures and the effect of heating temperature and time on structure and hardness have been studied.
研究了轧辊的预备热处理工艺对感应加热淬火组织的影响，感应加热温度和时间对组织和硬度的影响。
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