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深冷处理是将模具钢材降温至零下130℃以下并保持一定时间的工艺方法,旨在消除残余奥氏体,提升硬度和尺寸稳定性。该工艺常用于高精度模具和耐磨零件,可有效延长刀具和模具的使用寿命。深冷处理后通常需要进行低温回火以释放内应力。企业在实施深冷处理时,应控制冷却和升温速率,避免因温度梯度导致工件开裂。
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