鑄鈇的焊接和补焊是机械制造工業正常常遇到的工作,而且也是不容易得到滿意解决的問題。由於鑄含碳含碳量高,塑性低。在焊接时極易产生裂縫。同時凝固又快,出容易使焊縫金屬中有夾渣和气孔。尤其是很难避免出现白口,硬度增高,使机械加工困难。 Casting welding and welding is the normal work of the machinery manufacturing industry, but also not easily satisfied with the problem. Due to casting high carbon content, low plasticity. Cracks can easily occur during welding. At the same time solidification and fast, easy to make the weld metal slag and pores. In particular, it is difficult to avoid white mouth, increased hardness, making machining difficult.