| 冷挤压模具的深冷处理 |
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| 引用本文： | 钱士强 赵兴堂. 冷挤压模具的深冷处理[J]. 上海金属, 1996, 18(3): 29-32 |
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| 作者姓名： | 钱士强 赵兴堂 |
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| 作者单位： | 上海工程技术大学!200335 |
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| 摘 要： | 对常规热处理后的部分高合金模具钢和钢结硬质合金的冷技压模具进行深冷处理，模具的硬度略微变化而红硬性和耐磨性增加，大大提高冷挤压模具的使用寿命．深冷处理强化的原因主要是残余奥氏体转变、超微细碳化物析出及表面粗糙度和摩擦性的改善。
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| 关 键 词： | 冷挤压模具 冷作模具钢 深冷处理 |
CRYOGENIC TREATMENT OF COLD EXTRUSION DIE |
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| Qian Shiqiang, Zhao Xintang. CRYOGENIC TREATMENT OF COLD EXTRUSION DIE[J]. Shanghai Metals, 1996, 18(3): 29-32 |
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| Authors: | Qian Shiqiang Zhao Xintang |
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| Affiliation: | Shanghai University of Engineering Science |
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| Abstract: | The cold extrusion dies, made of high alloy die steel or steely harded metal,were treated by cryogenic method after conventional heat treatment, therefore, the red hard-ness and wear resi8tance of the dies were increased and the service life of them were greatlyprolonged' The hardening was mainly caused by the transformation of retained austenite, thedeposition of fine carbides, as well as the imptovement of die surface roughness and antifriction. |
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| Keywords: | Cold Extrusion Die Cold Working Die Steel Cryogenic Treatment |
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