| 硬煤截齿刀头硬质合金的热疲劳失效分析 |
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| 引用本文： | 蔡和平,姜喜春.硬煤截齿刀头硬质合金的热疲劳失效分析[J].西安交通大学学报,1997,31(3):12-17. |
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| 作者姓名： | 蔡和平 姜喜春 |
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| 作者单位： | 西安交通大学，华能精煤神府公司总机厂 |
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| 摘 要： | 对硬煤综采机的易损件——截齿进行了系统的失效分析．研究中发现，热疲劳所引发的早期疲劳破坏——崩块、剥落是制约其使用寿命的重要原因．采用中等Ｃｏ含量和粗粒度的ＷＣ硬质合金，对抗热疲劳从而提高截齿使用寿命有利
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| 关 键 词： | 截齿 硬质合金 热疲劳 |
Thermal Fatigue Failure Analysis of Cemented Carbide Bit in Coal Cutter for Hard Coal |
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| Cai,Heping,Zhu,Weidou.Thermal Fatigue Failure Analysis of Cemented Carbide Bit in Coal Cutter for Hard Coal[J].Journal of Xi'an Jiaotong University,1997,31(3):12-17. |
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| Authors: | Cai Heping Zhu Weidou |
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| Abstract: | Based upon the failure analysis of coal cutter for hard coal, it was found that the spalling and the peeling of cemented carbide bit is one of the major premature failure types which was caused by the thermal fatigue during operation of the combine. The medium cobalt content and coarse WC grain size is recommended in prolonging the service lifetime of cemented carbide bit. |
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| Keywords: | coal cutter cemented carbide thermal fatigue |
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