Advantage:
1. the coefficient of shadow expansion is large, the ability of slag gathering is strong, the slag collection is fast, it is easy to remove slag and crusts and remove slag, and the slag film aggregation is not broken. It can be singled out as a whole. Slag removal is completely undercut, which is good for saving time of slag removal, reducing electric energy loss and labor intensity of workers.
2. use less, not only for the amount of splash, solution 0.1%-0.3%, to reduce the loss of coerced
3. no pollution and effectively prevent the liquid metal mixed with other foreign materials, reduce the melting of alloy elements oxidation, mechanical properties without changing the composition and casting metal solution, to prevent casting defects such as pores, slag, iron (steel) is conducive to improve the quality and reduce the purification rate of scrap castings.
4. proportion is light, the expansion coefficient is large, the thermal insulation performance is good, the temperature drop is small when the metal liquid is treated, and the cooling rate of the molten iron can be reduced by 20%-30% in general.
5. residue is brittle, non stick package, improve furnace life of village village
6. with no dust, keep the working environment clean, reduce workers suffering from occupation disease risk
7. is beneficial to saving the cost, improving the product qualification rate, the economic effect, the import effect, the domestic price and the high cost performance.
8. specialized fine production, stable quality, excellent performance, easy to preserve.

Usage method