对那些尚未经过机械加工或经过机械加工暴露出铸造缺陷、符合性差(表面缺陷、尺寸超差、硬度低等)但适用性尚可的铸件,实施某些技术处理或挽救处理,达到合格品的标准再利用,称为铸件的回用。这项质量管理程序称为铸件回用程序。它之所以必要,是因为任何一项检查标准,都不可避免地遇到接收限度的问题。若订得宽松含混,则往往失去标准的价值,即便十分妥切,也难以包罗万象。其接受阈值门限内外,必然存在一个自然区间,其符合 For those castings that have not been machined or have been machined to reveal casting defects, poor conformity (surface defects, oversize, low hardness, etc.) but of acceptable applicability, certain techniques or salvage treatments are applied to achieve acceptable Standard reuse, known as the reuse of castings. This quality management program is called a casting reuse program. It is necessary, because any one of the inspection standards, are inevitably encountered the issue of receiving limits. If you set loose and mixed, you often lose the standard value, even if very appropriate, it is difficult to cover everything. It accepts a threshold within the threshold, there must be a natural interval, which is consistent