The heat conduction rate of tall aluminous brick is a when its heat up function important facet, in applying actually, can control through coming with lower part law and optimize the heat conduction function of tall aluminous brick:
1.Raw material chooses and deserve to compare tall purity raw material: Use the aluminous alumina of tall purity and other and fireproof data, can reduce foreign matter, improve integral performance of the brick. Add light simple stuff: Right amount light simple stuff is added in raw material (wait like pearlite, diatomite) , can form air hole, lower heat conduction rate.
2.Grain grading optimizes grain grading: Adopt reasonable grain grading design, increase bricky put oneself in another's position send density and uniformity. Better grain grading conduces to the micromechanism that forms stability, the bulk that controls air hole and distributing, lower heat conduction rate.
3.Add minim additive to introduce heat conduction to lead low additive: Add the additive with a few inferior coefficient of thermal conductivity, be like oxidation silicon small pink, can form thermal insulation, lower rate of integral heat conduction. Use light qualitative aggregate: Wait like light qualitative ceramists, cellular glass, can lower heat conduction rate significantly.
4.Shape and firing technology control shapes pressure: Reduce appropriately shape pressure, can increase the small air hole inside bricky body, lower heat conduction rate. Optimize firing temperature and time: Through adjusting firing temperature and time, the agglomeration rate that controls bricky aspect and stomatic structure, optimize function of its heat conduction.
5.Introduce small hole structure epispastic technology: Shape in bricky body foaming agent introduces in the process, form even small hole structure, lower heat conduction rate significantly. Firing the gas in the process generates: Be in firing in the process, make gas through chemical reaction, form the small hole structure that close, lower heat conduction rate effectively.
6.Poriferous structure designs perforated brick design: Through designing poriferous structure, form more air hole, the heat conduction that can reduce bricky put oneself in another's position effectively is led. Gradient structure designs: Gradient aperture structure is formed inside bricky body, outer spend for high density, lining is poriferous structure, can be in retain mechanical strength while lower heat conduction rate.
7.Technology of composite material composite material: The stuff with will tall aluminous brick and low rate of other heat conduction (like fiber, pottery and porcelain) compound use, can improve result of integral heat insolation, lower heat conduction rate. Double deck is compound structure: Design structure of double deck of inside and outside, outer for tall aluminous brick, lining is light qualitative heat-insulating material, can lower rate of integral heat conduction significantly.
8.Improve craft to use etc static pressure shape craft: Etc static pressure shape the density that can improve bricky put oneself in another's position and uniformity, conduce to optimize function of its heat conduction. High temperature to calcine: To calcine falls in high temperature, what can promote micromechanism is compact change, improve heat conduction performance.
Adopt above method, the heat conduction that can control tall aluminous brick effectively is led, the adiabatic demand below equipment of contented and different high temperature and craft condition, raise the sources of energy to use the service life of efficiency and fireproof material.
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