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影响汽缸套寿命的因素之一是材质的耐磨性,长春汽车研究所与北京汽车修理公司五厂协作,进行了硼铸铁汽缸套的研制。考核试验表明,硼铸铁汽缸套的耐磨性好,配用镀铬活塞环后,平均最大磨损量7.8微米/万公里,行程可达30万公里;对镀铬活塞环有明显的减磨作用,使活塞环的寿命提高近1倍;在使用过程中,未发生碎裂现象,实物强度大于HT20～40。且原材料立足国内,生产工艺简便,目前已投入生产。
One of the factors that affect the life of cylinder liner is the wear resistance of the material. Changchun Automobile Research Institute cooperated with Beijing Automobile Repair Co., Ltd. and developed the boron cast iron cylinder liner. Assessment tests show that the wear resistance of boron cast iron cylinder liner is good, with a chrome-plated piston ring, the average maximum wear 7.8 microns / km, travel up to 300,000 km; chrome piston rings significantly reduce the wear and tear so that Piston ring life nearly 1 times; in use, did not happen fragmentation, physical strength greater than HT20 ~ 40. And based on the domestic raw materials, production technology is simple, has been put into production.