| 钼粉性能对等离子喷涂活塞环涂层的影响 |
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| 引用本文： | 樊自拴,周月亭等. 钼粉性能对等离子喷涂活塞环涂层的影响[J]. 内燃机配件, 2001, 18(4): 5-8 |
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| 作者姓名： | 樊自拴 周月亭等 |
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| 作者单位： | [1]北京海淀物华冶金科技开发部 [2]江苏仪征双环活塞环有限公司 |
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| 摘 要： | 试验用两种笥能不同的钼粉与同一种镍基合金粉混合,进行了工业等离子喷涂活塞环对比试验。结果表明：提高钼粉的松装密度和流动性可以提高喷涂效率,从而提高喷涂粉的利用率和劳动生产率;选择恰当的喷涂距离、喷涂工件转速、控制适当的等离子焰温度,得到最佳涂层冷却速度,是提高涂层硬度和减少气孔率的关键;钼粉的松装密度大和流动性好可改善涂层的相分布均匀性,实现稳定生产,提高产品质量和成品率。
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| 关 键 词： | 钼粉 等离子喷涂 活塞环 内燃机 松装密度 流动性 |
Study on Influencing of Molybdenum Powder Property upon the Plasma Spray Piston Ring |
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| Fan Zishuan Zhou Yongfu Wang Qingsong Zhou Yueting Ding Li. Study on Influencing of Molybdenum Powder Property upon the Plasma Spray Piston Ring[J]. Internal Combustion Engine Parts, 2001, 18(4): 5-8 |
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| Authors: | Fan Zishuan Zhou Yongfu Wang Qingsong Zhou Yueting Ding Li |
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| Affiliation: | Fan Zishuan Zhou Yongfu Wang Qingsong Zhou Yueting Ding Li |
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| Abstract: | Separately Mixed two different property molybdenum powder with the same nickel-chromium-boron-silicon alloy,then carried out plasma spray piston ring experiments.The result declared that improving bulk density and fluidity of molybdenum powder can enhance spray efficiency,thereby enhance molybdenum powder utilization ratio and productivity.Selecting suitable spray distance,Sprayed work piece turning velocity and plasma flame temperature,thus can get optimum coating cooling rate,it is the key to enhance coating hardness and decrease gas hole ratio.Using high bulk density and good fluidity of molybdenum powder can obtain well-distributed phase of coating and produce steadily,thereby improve product quality and finished-product rate. |
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| Keywords: | Molybdenum powder Plasma spray Piston ring. |
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