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我厂的各种冷冲模都是用X12钢制成。在制造和使用过程中,往往会产生某些缺陷,如裂紋、磨损等。我厂由于电焊设备的限制,損坏的冲模是用气焊进行修理的。实际証明,气焊修理是能获得很好結果的。現在把气焊修理X12鋼的冷冲模的經驗介紹如下。一、准备工作: 要修理的冲模必須先进行退火,以便在裂紋处进行机械加工。退火的温度是860～880℃,保温3小时,然后随爐冷却。退火后的冲模根据缺陷的形状和性质进行开坡口,坡口的形状如图1。为了保
I plant a variety of cold die are made of X12 steel. In the manufacturing and use of the process, often have some defects, such as cracks, wear and so on. Our factory due to the limitations of welding equipment, damaged die is repaired by gas welding. The actual proof, gas welding repair is to get good results. Now the gas welding repair X12 steel die experience described below. First, the preparatory work: To repair the mold must be annealed in order to carry out mechanical processing at the crack. Annealing temperature is 860 ~ 880 ℃, holding 3 hours, then cooled with the furnace. After annealing the die according to the shape and nature of the defect bevel, bevel shape shown in Figure 1. To protect