| 压制次数对铜基粉末冶金摩擦材料物理性能的影响 |
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| 引用本文： | 张光胜,牛顿,冯思庆.压制次数对铜基粉末冶金摩擦材料物理性能的影响[J].机械工程师,2010(1):109-111. |
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| 作者姓名： | 张光胜 牛顿 冯思庆 |
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| 作者单位： | 1. 安徽工程科技学院,安徽,芜湖,241000;安徽商贸职业技术学院,安徽,芜湖,241000
2. 安徽工程科技学院,安徽,芜湖,241000: |
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| 摘 要： | 粉末压制是粉末冶金工艺关键步骤,压制压力直接影响着粉末冶金压坯的密度,提高压坯密度有助于提高粉末冶金制品的各项力学性能和物理性能。随着压制压力的提高,压坯密度呈现先急增后缓增的趋势,因此压制压力的大小严重影响着粉末冶金制品的性能。然而当压制压力不能使粉末冶金摩擦材料制品达到所需的压坯密度时,增加压制次数也能够在一定程度上提高压坯密度,一般情况下铜粉的屈服强度为200MPa左右,而一般铜基粉末冶金摩擦材料制品所需要的压制压力为600～800MPa,当使用低压压制时为了达到所需的压坯密度、硬度及各项物理性能,可适当增加压制次数,从而同样能达到改善压坯物理性能的目的。
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| 关 键 词： | 粉末冶金 压制次数 摩擦材料 压坯密度 压坯硬度 |
Influence of Compacting Frequency on Physical Properties of P/M Firction Material |
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| ZHANG Guang-sheng,NIU Dun,FENG Si-qing.Influence of Compacting Frequency on Physical Properties of P/M Firction Material[J].Mechanical Engineer,2010(1):109-111. |
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| Authors: | ZHANG Guang-sheng NIU Dun FENG Si-qing |
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| Affiliation: | 1.Anhui University of Technology and Science/a>;Wuhu 241000/a>;China/a>;2. Anhui Business College of Vocational Technology/a>;China |
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| Abstract: | Compacting pressure directly affects the density of compacts,and improving the density of compact is important to the physical properties of powder metallurgy products. Coincident with the increasing of compacting pressure,the density of compacts increase drastically first and then trend slower,so the compacting pressure serious impact on the performance of P/M products. However,when the compacting pressure can not make powder metallurgy friction material products to achieve the required compact density,inc... |
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| Keywords: | P/M compacting frequency friction material compact density compact hardness |
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