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上压缩环槽的磨损,目前在各类活塞缺陷当中占主导地位,在多数情况下,它可决定活塞,甚至整个发动机的寿命。提高铝活塞的活塞环槽的耐磨性,对提高发动机可靠性及寿命来说,是一个很重要的问题。 目前提高活塞环槽强度的通常作法是,在活塞环槽区装一耐磨镶圈。耐磨镶圈用耐蚀镍合金、灰生铁或钢制成,其可用机械方法或通过AI-Fin过程形成扩散金属层固定到活塞基
The wear on the compression ring groove is currently dominated by various piston imperfections and in most cases it determines the life of the piston, or even the entire engine. Improving the wear resistance of the piston ring groove of the aluminum piston is a very important issue for improving the reliability and life of the engine. The current practice to increase the strength of the piston ring groove is to wear a wear ring in the piston ring groove area. The wear rings are made of a corrosion resistant nickel alloy, gray pig iron or steel, which can be fixed to the piston base either mechanically or through the AI-Fin process to form a diffusion metal layer