如(ru)TD覆層(ceng)(ceng)局部已磨損(sun)或意外事故(gu)覆層(ceng)(ceng)被破壞一般只需將破損(sun)處(chu)修復,即(ji)可(ke)再進行(xing)TD覆層(ceng)(ceng)處(chu)理,重(zhong)(zhong)復處(chu)理次數(shu)與工(gong)件材料有關,品質較好的材料可(ke)以重(zhong)(zhong)復處(chu)理4-5次,甚(shen)至更(geng)多。