High Aluminum Zr02 Refractory Materials Sio2 Lightweight Fire Brick

High aluminum heat insulation lightweight firebrick Refractory Materials Iron and steel smelting

Product introduction  

 Refractory fired from refractory clay or other refractory materials. Light yellow or brown. It is mainly used in building smelting furnace and can withstand high temperature of 1580 ℃ - 1770 ℃. Also called refractory brick. Refractory of certain shape and size. According to the preparation process, it can be divided into sintered brick, non sintered brick, fused cast brick (fused cast brick) and refractory and heat insulation brick; It can be divided into standard brick, ordinary brick, special-shaped brick, etc. according to shape and size. It can be used as the structural material of high-temperature building materials, building kilns and various thermal equipment. It can withstand various physical and chemical changes and mechanical effects at high temperature. Such as refractory clay brick, high alumina brick, silica brick, magnesia brick, etc.

Its properties

1, chemical composition: the main composition determines the quality and characteristics of the refractory
2, volume density: unit volume weight, high density, indicating good density, strength may be high, but the thermal conductivity may be large.
3, apparent porosity: no specific requirements, but as a manufacturer must strictly control the apparent porosity.
4, load softening temperature: also known as high temperature load deformation temperature, this parameter is very important, marking the high temperature resistance of the material
5, thermal shock resistance: resistance to rapid temperature changes without being damaged
6, compressive strength: withstand (room temperature) the maximum pressure capacity
7, flexural strength: the ability to withstand shear pressure

High aluminum heat insulation lightweight firebrick

It is bauxite as the main AL2O3 content is not less than 48% of the heat insulation light firebrick. Its production technology adopts foam method, can also be used to burn the addition of the method. High aluminum heat insulation light refractory brick can be used for masonry insulation layer and no strong high temperature molten material erosion and erosion of the parts. When in direct contact with flame, the surface contact temperature of general high aluminum insulated firebrick shall not be higher than 1350℃. Mollite thermal insulation refractory brick can directly contact with flame, with high temperature resistance, high strength, energy saving effect, etc. It is suitable for lining of pyrolysis furnace, hot blast furnace, ceramic roller kiln, electric porcelain drawer kiln and various resistance furnace.