| 聚合物加入方式对粉末冶金温压成形的影响 |
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| 引用本文： | 项品峰,李元元,龙雁,倪东惠,张华,吴苑标. 聚合物加入方式对粉末冶金温压成形的影响[J]. 机械工程材料, 2001, 25(3): 23-24,34 |
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| 作者姓名： | 项品峰 李元元 龙雁 倪东惠 张华 吴苑标 |
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| 作者单位： | 华南理工大学机电工程系, |
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| 基金项目： | 科技部国家“九五”攻关资助项目! (98-A2 8-0 1-2 8)，广东省自然科学基金资助项目! (990 5 5 2 ) |
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| 摘 要： | 用温压成形技术制备了高密度、高性能铁基粉末冶金材料，试验研究了聚合物对合金粉末的抗氧化性和脱气率的影响，对比分析了干混和湿混两种聚合物加入方式对温压成形过程中聚合物的润滑机理和对生坯与烧结体性能的影响。试验结果表明：干混条件下聚合物的流动性起主要作用。湿混条件下聚合物薄膜所引起的摩擦副表面的性质和状态的改变的主要因素。
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| 关 键 词： | 温压成形 润滑机理 聚合物润滑剂 粉末冶金 粉末 |
| 文章编号： | 1000-3738(2001)03-0023-02 |
Effects of Polymeric Lubricant Adding Method on the Warm Compaction of Powder Metallurgy |
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| XIANG Pin feng,LI Yuan yuan,LONG Yan,NI Dong hui,ZHANG Hua,WU Yuan biao. Effects of Polymeric Lubricant Adding Method on the Warm Compaction of Powder Metallurgy[J]. Materials For Mechanical Engineering, 2001, 25(3): 23-24,34 |
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| Authors: | XIANG Pin feng LI Yuan yuan LONG Yan NI Dong hui ZHANG Hua WU Yuan biao |
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| Abstract: | High density and high quality iron based powder metallurgy materials were prepared by warm compaction The effect of polymeric lubricant on oxidation and degasification of the treated metal powder was investigated Effects of the different polymeric lubricant adding methods on the lubrication mechanism as wll as on green and sintered properties were compared Results show that viscosity of polymer plays a major role in dry mixing, while in the condition of wet mixing the change in property and the friction mode of surface caused by polymeric film is the main factor |
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| Keywords: | warm compaction lubrication mechanism polymeric lubricant |
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