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当铸铁机件特别是太型铸件产生裂纹或折断后,很难以焊接等方法恢复其原有强度。目前国外正在推广以扣合法修复铸铁机件,工艺简单,修复后质量可靠。我厂经过多次试验后,应用于空气锤底座、镗床齿轮箱、铣床升降台等的修复,效果良好。扣合法是总称,根据损坏机件的工作条件和特点,又可分为三种方法,暂定名为一般扣合法、密缝扣合法和加强扣合法。现简介如下。
When the cast iron parts, especially too-type castings crack or break, it is difficult to welding and other methods to restore its original strength. At present, foreign countries are promoting the buckling method to repair cast iron parts, the process is simple, and the quality of the repaired is reliable. After many tests of our factory, it is applied to the repair of air hammer base, boring machine gear box, milling machine lifting platform, etc. and the effect is good. Clasp method is a general term, according to the working conditions of damaged parts and features, can be divided into three methods, tentatively named the general deduction method, the law and strengthen the buckle seam buckling law. Now the introduction is as follows.