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滑动受流条件下,滑板材料的温升是决定其摩擦磨损机制的主要因素。文章采用有限元计算与实测温升相结合的分析方法,系统研究了不同热源(包括电弧热、接触电阻热、摩擦热以及体电阻热)对各种滑板材料体温升的影响。结果表明,不同滑板材料由摩擦热引起的体温升相近且数值较小;滑板材料中金属元素所占的比例愈多,电弧热对体温升的影响愈大,而接触电阻热的影响则愈小。体电阻热的影响可忽略不计。铜基粉末冶金滑板由于富含金属元素,耐电弧性能最差,浸金属碳滑板具有良好的综合受流磨损性能。
Under the condition of sliding flow, the temperature rise of the skateboard material is the main factor that determines the friction and wear mechanism. In this paper, the influence of different heat sources (including arc heat, contact resistance heat, frictional heat and body resistance heat) on the temperature rise of various skateboard materials is systematically studied by means of finite element analysis combined with measured temperature rise. The results show that the body temperature rise caused by the frictional heat of different skateboard materials is similar and the value is small. The more metal elements in the skateboard material, the greater the influence of arc heat on the body temperature rise and the less the contact resistance heat is . The effect of body resistance heat is negligible. Copper-based powder metallurgy skateboard due to rich metal elements, the worst arc resistance, immersion metal carbon skateboard has a good overall flow through the wear and tear performance.