金属扣合法是一项新工艺,利用它来修复铸铁机件的裂缝或折断,能获得很大的经济效果。我厂对这种修复法进行了研究裁验,两年来已应用此法修复成功很多机件。今就其中较为典型的700匹马力蒸汽机高压汽缸体裂缝的修复为例,介绍于下。一、机件损坏情况700匹马力蒸汽机高压汽缸体的中部产生长达1200毫米的透穿裂缝。汽缸体材料是铸铁,相当于HT18-36,缸体内径为455毫米,缸壁厚度32毫米,工作 Metal buckle law is a new technology, the use of it to repair the cracks or broken cast iron parts, can get great economic results. Our factory has carried on the research to this kind of repair law to judge, has already applied this method to repair a lot of successful parts in two years. This is one of the more typical 700 horsepower high-pressure steam turbine crack repair, for example, introduced in the next. First, the damaged parts 700 horsepower steam engine cylinder produces a central body of up to 1200 mm penetration cracks. Cylinder material is cast iron, equivalent to HT18-36, cylinder bore 455 mm, cylinder wall thickness 32 mm, work