铸件新型修复工艺与技术（４１２００６）中南林学院罗佑新铸件在铸造过程中经常产生气孔、渣孔、夹砂、缩孔、裂缝等缺陷，造成铸件使用寿命缩短或无法满足使用要求。为了消除这些缺陷，通常采用焊补工艺修复，但焊补修复工艺复杂、成本高，而且若缺陷在铸件内部时就无法... New Repair Technology and Technology of Casting (412006) Luo You, Central South Forestry University New castings frequently produce defects such as pores, slag holes, sand inclusion, shrinkage cavities and cracks during casting, resulting in shortened service life of castings or the inability to meet requirements for use. In order to eliminate these defects, welding repair process is usually used, but welding repair complex process, high cost, and if the defects in the casting can not be ...