Pre-Acting refining slag composition / steel pre-Acting refining slag ingredient present, most steel mills are widely used in ladle refining technology, reducing gas inclusions, so just sleep uniform, in order to achieve high yield, high quality, low cost steelmaking. Therefore, the ladle slag increasingly demanding. Therefore, the Company's technical staff on the production line has been extensive and meticulous research, multi-data collection, active collaboration with the German Metallurgy Association, the American Association of Engineers and other foreign mining and milling about the academic institutions and concerned institutions, research institutions, so that product quality steadily improved based on user feedback, the company produced by the refining agent effect has reached even better than the level of imported products. Such multi-purpose steel-making agent has the following characteristics. Pre-Acting refining slag which uses limestone (including CaO), magnesite (including MgO), dolomite (including CaO · MgO), witherite (including BaO) and fluorite (including CaF2) sintered melting in cupola furnaces from the system. This slag melting point is low, with the fastest speed melted shortening the molten steel in a refining package residence time, strengthen the smelting of conduct. At the same fluidity of good refining agent, to optimize the dynamic conditions of the desulfurization reaction can be achieved deep desulfurization. Ladle refining process, only for different types of steel slag choose a different system, in order to achieve the desired metallurgical results. Various types of slags currently widely used in the world are for different metallurgical environment, different atmosphere, different grades to choose. Therefore, the composition range of pre-acting volatile refining slag, alkalinity change is particularly evident, can vary from about 1.0 to 12; other elements of the changes can be from 0-40. Pre-acting ingredient refining slag are the following. (1) CaO CaO is an essential ingredient in the production of metallurgical slag dephosphorization, desulfurization, its vast sources (natural limestone as raw materials, smelting significant effect, is blast furnace slag, converter slag, electric furnace slag and various Pre-Acting class refining slag main component. In order to ensure a good desulfurization effect, requires pre-melting type refining slag contains high free state CaO. (2) Al2O3 Al2O3 mainly from raw materials and deoxygenated product. It desulfurization Effect twofold: on the one hand, with the increase of the amount of Al2O3, the slag viscosity decreases steel slag promoting the reaction, favor desulfurization; on the other hand, it reduces the increase in Al2O3 activity, suppression desulfurization (3) SiO2. SiO2 mainly from impurities in raw materials (gangue) and deoxygenated product, has a fluxing action. However, increased content of oxygen, desulfurization are unfavorable (4) CaF2 CaF2 can significantly reduce the viscosity of the pre-melting refining slag type, make slag flow improvement, increased mass transfer in favor of desulfurization, but it is too large, it is not conducive to oxygen, but also faster erosion of the lining. for foaming properties, its effect is twofold. On the one hand, CaF2 increasing the amount of the surface tension reduction, is conducive to slag foaming, but on the other hand, the slag viscosity decreases, is not conducive to foaming, tension plays a leading role. (5) MgO Premelted type refining slag mainly from the slag MgO materials and refractories, the desulfurization capacity slightly lower than CaO (a) Features 1, low melting point melting fast, shorten the refining time, reduce the power consumption of refined; 2, good liquidity, and to the inclusion of good desulfurization capacity; 3 Use no flame, small dust, safe and good; 4, non-absorbent, dust, storage and transportation process will not degenerate; 5, submerged arc effect, reducing the burning arc on the lining erosion, improve package age . factory direct selling price, the price please contact us welcome the new and old customers call to discuss solemn promise:.!. to ensure the best product, best quality, lowest price, best service to thank new and old customers trust business principles: customer first, quality, variety, reasonable prices Gongyi City Refractories Co., Ltd. Pengda ___ Premelted type refining slag composition / pre-Acting refining slag steelmaking ingredient.