Parametric Effects on the Coefficient of Friction of a Novel Composite Material for Automobile Brake Linning

Benedict U. Iyida, Azubuike M. Nwankwo, Thomas O. Onah
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引用次数: 0

Abstract

Brake lining, a friction lining material has over the years been produced mainly from asbestos. Asbestos health hazards have necessitated the need to source friction lining materials from other safer directions. A novel composite from local materials was developed. The brake lining production was a dispersion hardening process by the techniques of powder metallurgy of finely divided particles of the raw material powder mix. The raw materials included sawdust, resin, rubber latex, clay, carbon black, brass chips, zinc oxide and sulphur. The friction lining material thus produced, with its friction coefficient was analysed relative to its responses to increasing temperatures and pressures. The environment of increasing temperatures and pressures is its operating condition, in situ. Temperature range studied was from 300C-3000C, while pressure range was from 50KPa-250KPa. Results of the analysis showed the fiction coefficient not adversely affected, with minimum value at 0.31 and maximum value at 0.56.
参数对新型汽车制动衬里复合材料摩擦系数的影响
刹车衬里是一种摩擦衬里材料,多年来主要由石棉制成。石棉对健康的危害使得有必要从其他更安全的方向采购摩擦衬里材料。利用当地材料研制了一种新型复合材料。刹车片的生产是采用粉末冶金技术对原料粉末混合物进行细粒分散硬化的过程。原料包括锯末、树脂、胶乳、粘土、炭黑、黄铜片、氧化锌和硫磺。由此产生的摩擦衬里材料及其摩擦系数相对于其对温度和压力升高的响应进行了分析。温度和压力不断增加的环境是它在原地的操作条件。研究温度范围为300C-3000C,压力范围为50KPa-250KPa。分析结果表明,虚构系数没有受到不利影响,最小值为0.31,最大值为0.56。
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