Slag-trapping covering agent for casting and its pre-treating process
A slag collecting covering agent and pretreatment technology, applied in the field of slag collecting covering agent, can solve the problems of poor puffing, the puffed slag collecting layer hangs on the wall of the ladle, and the slag removal is not clean, so as to improve the slag collecting effect, and it is not easy to hang. Bag, easy to remove the slag effect
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[0014] One embodiment of the present invention is: select high-quality perlite raw ore, artificial quartz sand, and fluorite to be crushed to 40-70 meshes; mix in proportions of 87% perlite, 10% quartz sand, and 3% fluorite. Bake at 350°C for 30 minutes, add 2% borax and 1% cryolite, and mix well. It is used for slag removal in the induction furnace and slag collection, slag removal and covering in the furnace front bag, and its effect is better than that of the existing similar products.
[0015] The casting slag collecting covering agent and the pretreatment process thereof of the present invention can be widely used in various cast iron and cast steel production processes. According to the different casting materials, the temperature of molten metal, whether it is used in the furnace or in the ladle, the addition ratio of components can be adjusted within the above ratio range to make various special slag collecting and covering agents.
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