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Classification of refractories

Author : Hongteng Time: 2021-08-25

According to the different needs of customers, we have different selection of refractory materials, mainly divided into the following several kinds of refractory materials:

Acid refractory: 

Acid lining material, the use of high purity microcrystalline quartz sand, powder, and mixed with high temperature sintering agent and mineralizing agent into the dry vibration material, strict control of particle size and sintering agent, the dosage so whether knot in a variety of methods a dense lining can be obtained. This product is mainly used for grey iron, ductile iron, carbon steel foundry melting process, and is suitable for continuous high temperature environment, can also be used for titanium alloys and high temperature smelting non-ferrous metal.

Neutral lining material: 

Neutral lining material is the corundum sand, powder, add magnesium aluminium spinel powder and sintering agent and dry mash material. The granularity distribution conforms to the maximum packing density theory, so a uniform density can be obtained through various knotting method of lining, it is mainly used for all kinds of alloy steel, carbon steel, stainless steel, etc., this material has good thermal shock stability, volume stability and high temperature strength, and keep backing during normal use have certain loose bed.

Alkaline lining materia: 

lAlkaline lining material and using fused or high purity magnesia powder, add magnesium aluminium spinel powder and sintering agent and dry mash material.The particle size distribution conforms to the maximum packing density theory, so the density can be obtained through various knotting method uniform heating furnace lining, it is mainly used for all kinds of high alloy steel, carbon steel, high manganese steel, tool steel, stainless steel, etc., the material has high refractoriness and high temperature strength, and keep backing during normal use have certain loose bed.

Coreless induction furnace refractory material as a result of the action of mineralizer and through the oven for the first time a – p after sintering quartz conversion rate is high, so the oven time is short, the size stability, high thermal shock resistance and high temperature strength, in normal use is to maintain certain loose backing.

 
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