随着我国汽车工业的不断发展,对汽车各种性能的要求也不断提高。特别是发动机,目前正向高速大马力方向发展。这样,我厂现生产的不镶套整体式气缸体和国内现有的气缸套材料,已难以满足新型发动机的可靠性和耐久性需要。前些年,我厂试装一 With the continuous development of China’s auto industry, the requirements for various performances of automobiles have also been continuously improved. In particular, the engine is currently developing in the direction of high-speed high-power. In this way, the non-jacketed monolithic cylinder blocks currently produced by our factory and the existing cylinder liner materials in China have been difficult to meet the reliability and durability requirements of the new engines. In previous years, our factory installed a