| 增压柴油发动机排气门盘部断裂分析 |
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| 引用本文： | 权仁泽,鹿云,潘艳春.增压柴油发动机排气门盘部断裂分析[J].金属热处理,2002,27(2):46-47. |
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| 作者姓名： | 权仁泽 鹿云 潘艳春 |
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| 作者单位： | 中国第一汽车集团公司,技术中心材料部,吉林,长春,130011 |
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| 摘 要： | 利用金相及扫描电镜对增压柴油机排气门盘部断裂原因进行了分析。分析结果表明，21－4N网不适合做高热负荷发动机排气门材料；排气门的锻造流线必须符合气门外形轮廓，不得存在截断和大角度弯曲等缺陷。
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| 关 键 词： | 排气门材料 锻造流线 烧蚀 加工刀痕 柴油机 增压 |
| 文章编号： | 0254-6051(2002)02-0046-02 |
Failure Analysis on the Exhaust-valve Skirt Used in Supercharge Diesel Engine |
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| QUAN Ren ze,LU Yun,PAN Yan chun.Failure Analysis on the Exhaust-valve Skirt Used in Supercharge Diesel Engine[J].Heat Treatment of Metals,2002,27(2):46-47. |
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| Authors: | QUAN Ren ze LU Yun PAN Yan chun |
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| Abstract: | Failure analysis on the exhaust valve skirt used in supercharge diesel engine was carried out through metallographic and SEM analysis.The results showed that steel 21 4N is not suitable as the exhaust valve material used in a high heat load engine,and the forging streamline of the exhaust valve should be accordant with the valve contour and without streamline fracture and large angle bending. |
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| Keywords: | exhaust valve material forging streamline burning corrosion machining spur |
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