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机械制造业中,铸件占机器零件总数的70％以上。在铸造技木水平还不高的条件下,浇铸出来的铸铁件几乎难免产生一些铸造缺陷,如夹砂、夹渣、气孔等;在机器的使用中,也常常发生损伤、裂纹等情况。我厂曾采用铸铁焊补方法来焊补有缺陷或损坏的铸铁件,效果很好。现对铸铁焊补技术作如下介绍:一、铸铁焊补工艺1、热焊补法先将铸件的缺陷处用机械加工或披凿的方法把杂质、氧化层等污物除去,直到露出洁净的金属表面。
In the machinery manufacturing industry, castings account for more than 70% of the total machine parts. In the casting technology wood level is not high conditions, the casting of cast iron is almost inevitable to produce some casting defects, such as sand, slag, porosity, etc .; in the use of the machine, but also often occur damage, cracks and so on. Our factory has used cast iron welding repair methods to repair defective or damaged cast iron pieces, the effect is very good. Cast iron welding technology is now introduced as follows: First, cast iron welding repair process 1, the first welding heat welding defects in the casting at the machining or plowing method to remove impurities, oxides and other dirt until exposed Metal surface.