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各种机器的滑动轴承都广泛使用白合金和铜合金,其中包括铅青铜.由于这些材料价格高、稀缺和具有许多缺点,因此,目前正进行大量研究工作,以寻找新的轴承材料.寻找新的轴承材料的工作,还与机械制造的发展和创制重量更轻、功率更大的机器有关.现代机器的轴承单位负荷增大了,圆周速度提高了,滑油温度也升高了.在这些条件下,白合金不能保证足够的疲劳强度,而铅青铜又会使轴颈磨耗增大,因此需要强度及耐磨性都很高的材料. 寻找新材料的主要方向是研究各种铝合金,铝合金价格比较便宜,不稀缺,比重小,耐蚀性高,此外,
White and copper alloys, including lead bronze, are widely used on all kinds of machine plain bearings and due to the high price, scarcity and many shortcomings of these materials, a great deal of research is currently underway to find new bearing materials. The bearing material work is also linked to the development of machine building and the creation of lighter and more powerful machines, which increase the load on the bearing units of the modern machines, increase the peripheral speed, and increase the temperature of the lubricating oil. Under the conditions of white metal can not guarantee sufficient fatigue strength, and lead bronze will make the journal wear increased, so the need for high strength and wear resistance of the material.The main direction of finding new materials is to study a variety of aluminum alloys, Aluminum prices cheaper, not scarcity, the proportion of small, high corrosion resistance, in addition,