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因飞溅损失因素,普通焊条熔敷效率一般均小于100％。铁粉焊条由于在药皮中加入相当数量的铁粉,焊接过程中铁粉随药皮一起熔化并过渡进入熔敷金属,所以熔敷效率可提高0.3～2.5倍。同时,铁粉焊条还具有改善焊接工艺性能、降低焊接应力与变形、节省焊芯与用电消耗、提高经济效益等优点,在钢结构件制造过程中,尤其在造船业、压力容器制造业及野外施工有着良好的应用前景。 目前在美国和欧洲已很少使用普通结构钢焊条,而大量使用钛型、钛钙型及低氢碱性高效铁粉焊条。在我国尽管从80年代起就曾大力推广铁粉焊条的开发与应用,但至今铁粉焊条的年生产量仅占焊条总产量的10％左右。合肥电焊条厂(安徽
Due to splash loss factors, ordinary welding electrode deposition efficiency are generally less than 100%. As a result of iron powder electrode in the skin by adding a considerable amount of iron powder, iron powder with the coating during the melting process and transition into the deposited metal, so the deposition efficiency can be increased by 0.3 to 2.5 times. At the same time, the iron powder electrode also has the advantages of improving the welding process performance, reducing the welding stress and deformation, saving the welding core and power consumption, improving economic efficiency, etc. In the steel structure manufacturing process, especially in the shipbuilding industry, pressure vessel manufacturing and Field construction has a good prospect. Currently in the United States and Europe have rarely used ordinary structural steel electrodes, and extensive use of titanium, titanium calcium type and low hydrogen alkaline efficient iron powder electrode. Although in our country since the 1980s has strongly promoted the development and application of iron powder electrode, but the annual output of iron powder electrode only accounts for about 10% of the total output of welding rod. Hefei electrode factory (Anhui