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混合气体保护冷焊铸铁,是一项新的冷焊工艺。自一九八○年以来,我们开始采用这项冷焊工艺焊补各种汽车、工程机械的缸体、缸盖及其它铸铁机件。下面以C-100型推土机缸体补焊为例,简单介绍如下: C-100型缸体是用在100马力推土机上的,它是五十年代的产品,材质相当于国标HT20-40(灰口铸铁),缸体的损坏部位在缸体根部外缸套下方。裂纹长度为350毫米。通过焊补效果良好。
Mixed gas protection cold welding cast iron, is a new cold welding process. Since 1980, we have started to use this cold welding process to weld all kinds of cylinder blocks, cylinder heads and other cast iron parts of automobiles and construction machinery. The following C-100 bulldozer cylinder welding repair as an example, briefly introduced as follows: C-100-type cylinder is used in 100 horsepower bulldozers, it is the fifties products, the material is equivalent to the national standard HT20-40 (gray Mouth cast iron), the damaged part of the cylinder is below the outer cylinder liner of the cylinder body. Crack length of 350 mm. By welding effect is good.