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1.      It is helpful to adjust and control the content of oxidizable and microelements. It can improve yield rate of alloy greatly, reduce smelting cost, shorten smelting time and control composition precisely.

2.      It plays the roles of purifying molten steel and partly changing natures of inclusions and form, improving quality of molten steel and status of casting.

3.      Cored wire is divided into two types, internal pumping and external releasing. Mechanical equipment for wire feeding is simple and reliable and occupies less area. In particular, internal pumping cored wire is more suitable for small and narrow places. 

• [Editor:張德眾]