Mold molten steel control

The flow of molten steel in the mould tubes has a great influence on the quality of the mold. The unreasonable flow of molten steel in the mold will lead to many defects in the slab, such as bubbles and inclusions in the slab, entrainment of mold slag, surface defects, and leakage. Therefore, studying the…

What are the raw materials of magnesia carbon bricks? The main uses of magnesia carbon bricks

Abstract: Magnesia-carbon brick is a kind of composite refractory material. It is a carbon-bonded alkaline brick prepared with magnesia, carbon source, organic binder and admixture, and is made by mixing, high-pressure molding and low-temperature treatment. It is mainly used for the lining and tapping hole of the steel-making oxidation reformer, the hot spot of the…

HSS ROLLS Material

The high-speed steel roll material contains high alloy elements such as vanadium, tungsten, chromium, molybdenum, niobium, etc. The types of carbides in the roll structure are mainly MC type and M2C type. Compared with ductile iron rolls and high-nickel-chromium rolls, the single-groove (time) steel passing is higher, which saves roll changing time, improves rolling mill…

rolling mill roll material

Work Roll Material Selection The work rolls of rolling mill roll before rough rolling (R1): Work rolls before rough rolling must have toughness, wear resistance and thermal crack resistance. The hardness range is about HS40-55. Generally, 60CrNiMo cast steel and other material rolls are used. Work rolls after rough rolling (R2): The work rolls after…