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调质退火正火

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2018/04/27 10:53:31
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韦德国际1946手机版,韦德国际官网weide567,位于广东省佛山市顺德区陈村镇石洲工业区,我们专注材料热处理30年!

加工设备: 全自动智能化原装瑞士索罗(SOLO)底装料立式多用炉生产线1条
           真空高压气淬炉10台
           真空油淬气冷炉1台
           箱式回火炉6台
           深冷机组2台
           检测项目:硬度(HRC)
           检测设备:洛氏硬度计。

 

适用工艺:调质、正火、退火

适用材料:低碳钢、低碳合金钢

调质处理:淬火后高温回火的热处理方法称为调质处理

钢的淬火:是将钢件加热到Ac3或Ac1以上某一温度,保持一定时间,然后以适当速度冷却获得马氏体和(或)贝氏体组织的热处理工艺称为淬火。

钢的回火:是将工件淬硬后,再加热到Ac1点以下某一温度,保温一定时间,然后冷却到室温的工艺。其目的是调整工件的强度、硬度、塑性、韧性及红硬性等力学性能,降低或消除淬火应力,避免变形、开裂,保持适用过程中的尺寸稳固 。

钢的正火:是指钢材或钢件加热到Ac3(亚共析钢)或Acm(过共析钢)以上30~50℃,保温适当的时间后,在静止的空气中冷却的热处理工艺。把钢加热到Ac3以上100~150℃的正火称为高温正火。

钢的退火:是指将钢或钢件加热到适当温度,保持一定时间,然后缓慢冷却的热处理工艺。

 

优势:可消除内应力,改变晶体结构,改善和消除不稳固 因素,使热处理加工产品使用更稳固 持久

运用提高钢的表面硬度、耐磨性、疲劳强度、表硬心韧

应用:提高硬度,主要用于改善材料的切削加工性能。

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