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将碳烘焙或石墨化而制成的球体在25℃下的导热率为0.03cal/cm·s·℃以上,其各向异性的热膨胀系数小于40％。在发热条件下球体有很高的使用寿命,不会产生点蚀或裂开,它可用于制造滚珠轴承。碳或石墨球体在工业机器中作为滑动构件与钢和塑料球体相比有很多优点,例如重量轻、低摩擦、良好的耐磨性和尺寸热稳定性。本文中采用的碳材料包含下列成份:将含有芳香
Balls made by baking or graphitizing carbon have a thermal conductivity of 0.03 cal / cm · s · ° C or more at 25 ° C and an anisotropic coefficient of thermal expansion of less than 40%. The spheres have a long service life under hot conditions without pitting or cracking and can be used to make ball bearings. Carbon or graphite spheres have many advantages over steel and plastic spheres as slip members in industrial machines such as light weight, low friction, good abrasion resistance and dimensional thermal stability. The carbon material used in this article contains the following ingredients: Will contain aroma