铜是比较稀缺的金属,因此如何寻找来源丰富、性能良好的材料代替铜,具有十分重大的意义。我们的工作是着重解决青铜轴套、轴瓦等的材料代用问题。现将工作的主要内容作一介绍。由于我们的水平有限,是否正确,希望大家给予批评指正。一选用铸铁轴承的主要依据选择轴承材料,必须在符合技术要求的同时,能 Copper is a relatively scarce metal, so it is of great importance to look for sources of rich, good materials instead of copper. Our work is focused on solving the material substitution problems of bronze bushings, bushings and so on. Now the main content of the work for an introduction. Due to our limited level and correctness, I hope everyone will give their criticism and rectification. A choice of cast iron bearings based on the choice of bearing material, must meet the technical requirements at the same time, can