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虽然有色金属铸件的生产工艺有不断的改进,可是当铸件有缺陷时,在决大多数情 况下还是要求修补的。在技术上正确地修补这些缺陷,能完全恢复铸件的工作质量。尤 其是当制造形状大而复杂的有色合金铸件时,希望能不产生意外,也就是希望零件不产 生严重影响工作质量的缺陷,因为如果产生了缺陷,将不可避免的使工艺过程极端复杂化,并且增大机械加工裕量,结果大大地提高了零件的成本。因此,从这一点着眼,正确
Although the non-ferrous metal casting production process has been continuously improved, but when the casting defects, in most cases still require repair. Technically correct repair of these defects, can fully restore the quality of the casting work. Especially when manufacturing large and complicated non-ferrous alloy castings, it is hoped that there will be no accidents, that is, it is hoped that the parts will not cause serious defects in the quality of work because defects will inevitably make the process extremely complicated, And increase the machining allowance, the result has greatly increased the cost of the parts. Therefore, from this point of view, correct