| Kevlar浆粕和冰晶石及硫酸钡在摩擦材料中的作用 |
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| 引用本文： | 杨亚洲,蒋蔓,马云海,佟金.Kevlar浆粕和冰晶石及硫酸钡在摩擦材料中的作用[J].农业机械学报,2006,37(4):142-144,148. |
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| 作者姓名： | 杨亚洲 蒋蔓 马云海 佟金 |
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| 作者单位： | 1. 吉林大学地面机械仿生技术教育部重点实验室
2. 吉林大学化学学院 |
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| 摘 要： | 分析了Kevlar浆粕、冰晶石及沉淀硫酸钡对制动摩擦材料摩擦磨损性能、洛氏硬度及冲击强度的影响.结果表明：填加Kevlar浆粕、冰晶石及硫酸钡能不同程度地提高并稳定摩擦因数、降低比磨损速率,其中Kevlar浆粕和冰晶石的混杂效应最为明显;增大硫酸钡含量则能较好地控制摩擦因数随温度的波动;摩擦材料的洛氏硬度值有所降低,而冲击强度则不同程度地提高.利用扫描电镜对摩擦材料磨损表面进行了观察和磨损机理分析.
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| 关 键 词： | 制动摩擦材料 Kevlar浆粕 冰晶石 沉淀硫酸钡 摩擦磨损 力学性能 |
| 收稿时间： | 09 2 2005 12:00AM |
| 修稿时间： | 2005-09-02 |
Effects of Kevlar Pulp, Cryolite and Precipitated Barium Sulfate on Braking Friction Materials |
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| Yang Yazhou,Jiang Man,Ma Yunhai,Tong Jin.Effects of Kevlar Pulp, Cryolite and Precipitated Barium Sulfate on Braking Friction Materials[J].Transactions of the Chinese Society of Agricultural Machinery,2006,37(4):142-144,148. |
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| Authors: | Yang Yazhou Jiang Man Ma Yunhai Tong Jin |
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| Institution: | Jilin University |
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| Abstract: | The effects of Kevlar pulp, cryolite and precipitated barium sulfate on friction and wear performance, Rockwell hardness and impact strength of friction materials were examined. The results showed that coefficient of friction was increased and stabilized and specific wear rates were decreased as the Kevlar pulp, cryolite and precipitated barium sulfate were filled and, particularly, the hybrid of Kevlar pulp and cryolite had a significant effect. As temperature was changed, the stability of the friction coefficient of friction materials could be improved, the Rockwell hardness decreased and the impact strengths increased by way of increasing the content of precipitated barium sulfate. The worn surfaces of friction materials were examined by scanning electron microscopy and wear mechanisms were analyzed. |
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| Keywords: | Braking friction materials Kevlar pulp Cryolite Precipitated barium sulfate Friction and wear Mechanical properties |
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