鑄銅件的缺陷維修注意事項(xiàng)
Precautions for defect repair of copper casting
冷焊材料的使用方法：首先要處理好被修表面，千萬不可以有銹和油，否則就會(huì)造成膠層脫落，進(jìn)行粗化處理是最好，這樣可以增加分子間的結(jié)合力，大大增強(qiáng)修補(bǔ)后的產(chǎn)品使用壽命。還要記住要選擇鑄件本身材料相對(duì)應(yīng)的專用冷焊材料，例如鑄銅件就要選用（勁素成）JS904鐵制冷焊材料，鋼、鋁、鐵等也要選擇它們專用的冷焊材料，已達(dá)到最好的修補(bǔ)效果。
Usage of cold welding materials: first of all, the surface to be repaired must be well treated, and there must be no rust and oil, otherwise the adhesive layer will fall off. Roughening is the best, which can increase the binding force between molecules and greatly enhance the service life of repaired products. Also remember to select the special cold welding material corresponding to the casting material itself. For example, for copper casting, js904 iron cold welding material should be selected, and steel, aluminum and iron should also choose their special cold welding material, which has achieved the best repair effect.