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Refractory Production Technology
Oct 24, 2018

According to the density and shape of the products, there are sintering, melting and melting methods. Sintering method is to pre-sinter some raw materials mature material, crushing and screening, and then according to a certain proportion of raw materials mixed, through molding, drying and firing. The purpose of raw material pre-firing is to burn off moisture, organic impurities and sulfate decomposition gases, so as to reduce the sintering shrinkage of products and ensure the accuracy of product shape and size. Raw materials need to be screened after crushing and grinding because billets are graded by powders of different sizes to ensure the tightest accumulation of compact billets.

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