| Cr—Mo—Cu—P激冷合金铸铁气门挺杆的热处理 |
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| 引用本文： | 于学勤. Cr—Mo—Cu—P激冷合金铸铁气门挺杆的热处理[J]. 吉林工学院学报, 1989, 10(3): 43-49 |
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| 作者姓名： | 于学勤 |
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| 作者单位： | 吉林工学院材料工程系 |
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| 摘 要： | 本文研究了Cr-Mo-Cu-P激冷合金铸铁气门挺杆热处理时淬火加热温度和保温时间对激冷白层石墨数量、硬度和耐磨性的影响。研究结果表明，石墨数量随淬火加热温度的升高和保温时间的延长而增加，硬度和耐磨性则略有降低。但是，经淬火和低温回火后，Cr-Mo-Cu-P合金铸铁挺杆的激冷端面由不同的组织组成物构成一个既抗擦伤又抗磨损的较理想的摩擦学表面。
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| 关 键 词： | 激冷合金铸铁 耐磨性 气门挺杆 Cr－Mo－Cu－P 热处理 淬火 激冷白口层 |
Heat Treatment of the Valve Tappet of Cr-Mo-Cu-P Chilled Alloy Casi Iron |
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| Yu Xueqin The Materials Engineering Department. Heat Treatment of the Valve Tappet of Cr-Mo-Cu-P Chilled Alloy Casi Iron[J]. Journal of Jilin Institute of Technology, 1989, 10(3): 43-49 |
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| Authors: | Yu Xueqin The Materials Engineering Department |
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| Affiliation: | Yu Xueqin The Materials Engineering Department |
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| Abstract: | The influence of quenching temperature and holding time on graphite content, hardness and wear resistance of the chilled end of a valve tappet made of an alloy cast iron has been investigated. Experimental results showed that with increasing quenching temperature and holding time, the graphite content increases, and the hardness and wear resistance slightly decrease. However, after quenching and tempering at low temperature, the chilled end of the valve tappet, which consists of different structural constituents, has a desirable antiwear and antiscuffing tribosurface. |
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| Keywords: | chilled alloy cast iron wear resistance |
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