Electroslag pre-melting slag is widely used in the production of all kinds of electroslag steel, which has proper electrical conductivity under the action of high temperature and has the performance characteristics of protecting highly active metals from oxidation. It can effectively remove sulfur, phosphorus, oxygen, hydrogen, nitrogen and other harmful elements and some non-metallic inclusions in remelted steel, so that the metal can be purified and cleaned. It can effectively prevent hydrogen, oxygen, nitrogen, sulfur, phosphorus, lead, zinc and other elements in remelted steel from exceeding the standard, prevent non-metallic inclusions from exceeding the standard, and avoid quality defects such as cracks in ingots. It is suitable for electroslag remelting of carbon steel, alloy steel, bearing steel, mold steel, high-speed tool steel and other steel grades.

Mechanism：

Hydrogen, nitrogen, sulfur, phosphorus, and water are strictly controlled in the melting process of pre-melting slag.By removing unstable oxides, variable oxides (FeO, MnO, SiO2, etc.) and harmful elements (S, P, Pb, Bi, Sn, etc.) in the slag, make it into fluoride (SF6, SiF4, etc.), purify and clean the slag to ensure the quality of subsequent electroslag steel production.

Product Features:

1. The pre-melting slag has uniform composition, compact structure and no crystalline water.

2. It’s easy for arc starting, short time for slag-making. And the quality of the steel bottom is good. It has solved the phenomenon of air holes and hydrogen cracking of electroslag ingot caused by self-supplied slag, and the qualified rate of steel inspection is greatly improved.

3. The humidity of the self-supplied slag is 0.5-1.5%, while the humidity of the pre-melting channel is only 0.006-0.1%, which effectively solves the slag collapse problem in the slag pool and ensures the operation safety.

4. The pre-melting slag is granular slag, which has good air permeability during use, avoiding the dust flying in the production site and protecting the environment.

Henan Xinghao metallurgical refractory Co., Ltd. is committed to supplying high-quality ferroalloy products to the world. The company's main products are: metal silicon, electrolytic manganese, metal manganese ingot, ferrosilicon calcium, high carbon silicon, magnesium ingot, etc; The products are sold to many large iron and steel enterprises and foundry enterprises in China.