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用金属扣合法修复大型铸铁件有以下优点:(1)质量可靠,修复后机件的强度不会降低;(2)修复工作在室温下进行,可避免由于加热而产生的变形及内应力,保持机件原有精度;(3)可在现场进行修复,工艺简单,不需要复杂的设备和工具;(4)修复周期短、费用省;(5)不破坏机体外观,经喷漆后,很难看出修复痕迹。 我所在70年代曾应用金属扣合法修复一台1t空气锤的立柱裂纹,效果很好。这种方法对于修复大型、不易搬动、结构复杂的铸铁件是一种行之有效的办法。 金属扣合法有强固扣合法、强密扣合法和优级扣合法三种。
Metal buckle method to repair large iron castings has the following advantages: (1) reliable quality, mechanical strength after repair will not be reduced; (2) repair work carried out at room temperature to avoid deformation due to heating and internal stress, (3) can be repaired in the field, the process is simple, does not require complicated equipment and tools; (4) repair cycle is short, the province of cost; (5) does not undermine the appearance of the body, after painting, very Difficult to see the traces of repair. In the 1970s, I used the metal buckle to repair a column crack of a 1t air hammer, which worked well. This method is an effective way to repair large, hard-to-move, complex-structure castings. Metal buckle law with a strong buckle law, strong buckle law and superior buckle law three.