Molten steel covering agent

In casting production, in order to extend the solidification time of the molten metal in the riser, the covering material covering the surface of the riser molten metal is called a covering agent.

This product is suitable for sand-type ordinary risers for steel castings. Without the use of heat preservation riser sleeves, the shrinkage of the riser shrinkage cavity can be changed from “V” to “U” shape, avoiding porosity and shrinkage. , The feeding effect is 30%, the weight of the riser is reduced by 50%-75%, the yield rate is increased by more than 15%, and the chemical composition of the casting is guaranteed to be unchanged, and each ton of molten steel only needs to invest 40-50 yuan, and carbonization Compared with products such as rice husk, heating agent, plant ash, and thermal insulation riser, there are significant social and economic benefits.