| 冷却速度对大厚度P20塑料模具钢硬度的影响 |
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| 引用本文： | 丛文龙,于志军,孙海燕. 冷却速度对大厚度P20塑料模具钢硬度的影响[J]. 大型铸锻件, 2017, 0(1) |
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| 作者姓名： | 丛文龙 于志军 孙海燕 |
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| 作者单位： | 苏南重工机械科技有限公司,江苏,215000 |
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| 摘 要： | 采用JMatPro软件,研究了一定成分下P20塑料模具钢的淬火工艺,分析了不同冷却速度下P20模具钢的显微组织以及硬度情况。结果表明:增大冷却速度将会显著抑制铁素体、珠光体以及贝氏体的转变,增加马氏体的转变量。为保证大厚度P20模具钢心部硬度值,其冷却速度需大于1℃/s以满足其技术要求。
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| 关 键 词： | P20钢 冷却速度 硬度 |
Influence of Cooling Speed on Hardness of P20 Plastic Mold Steel with Large Thickness |
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| Cong Wenlong,Yu Zhijun,Sun Haiyan. Influence of Cooling Speed on Hardness of P20 Plastic Mold Steel with Large Thickness[J]. Heavy Casting and Forging, 2017, 0(1) |
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| Authors: | Cong Wenlong Yu Zhijun Sun Haiyan |
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| Abstract: | By adopting JMatPro software , the quenching process of P 20 plastic mold steel with a certain chemical composition has been studied .Meanwhile , the microstructure and the hardness of P 20 plastic mold steel at different cooling speed have been analyzed .The results show that the transformation of ferrite , pearlite and bainite is inhabited obviously along with the increase of the cooling speed , at the same time the transformation of martensite is increased . In order to ensure the core hardness value of P 20 mold steel with large thickness , the cooling speed shall be more than 1℃/s, as so to meet the technical requirements . |
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| Keywords: | P20 steel cooling speed hardness |
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