Recipe of tall aluminous brick and classification

1, common tall aluminous brick

The main and mineral composition of this firebrick is Yinglaishi, corundum and vitreous photograph, as the addition of content of the Al2O3 in goods, mo Laishi and corundum also increase, vitreous photograph will decrease accordingly, of goods fireproof spend and high temperature capability rises subsequently. Common tall aluminous brick has a series of more better than argillaceous brick fireproof performance, it is effect of a kind of application good, use extensive data, wide application is versed in at all sorts of heat in kiln furnace. Compare with argillaceous brick photograph, improve the service life of kiln furnace effectively.

2, Gao He is soft tall aluminous brick

Gao He soft tall aluminous brick and common photograph of tall aluminous brick is compared, what what differ is matrix part and bond portion: Matrix part is divided add 3 stone concentrate besides, according to the chemistry after burning composition is close to academic composition of Molaishi, reasonable introduced expensive aluminous stock, wait like pink of corundum pink, tall aluminous corundum; Bond chooses clay of high grade ball to wait, inspect breed to differ use different clay compound bond, not perhaps come stone bond. Adopt afore-mentioned methods, the loading bate temperature of tall aluminous brick can raise 50~70 ℃ left and right sides.

3, brick of low creep tall aluminium

Through using so called did not balance reaction to come to those who raise tall aluminous brick fight creep function. Namely the use temperature circumstance according to kiln furnace, 3 stone are added in matrix alumina of mineral, activation, making the composition of matrix adjacent or complete is Mo Laishi composition, because of matrix not come petrifaction, be sure to raise the Mo Laishi content of material, reduce vitreous photograph to contain in, and Molaishi actors or actress the function of mechanical, heat of different is helpful for material high temperature capability rise. Not come to make matrix complete petrifaction, controlling Al2O3/SiO2 is crucial. Tall aluminous brick applies low creep extensively at the furnace of hot project kiln such as hot-blast stove, blast furnace in.

4, phosphate combines tall aluminous brick

Phosphate combines tall aluminous brick is as a result close fancy or aluminous grog is one class tall aluminium main raw material, phosphatic solution or phosphoric acid aluminous solution are bond, after shaping through doing law machine to press partly, the chemistry that makes at 400~600 ℃ heat treatment combines firebrick. It is belonged to do not bake bricks, systole of the goods in using a process to avoid to be in is bigger, general need introduces in burden heat expansile raw material, wait like La Pinshi, silica. What be united in wedlock with pottery and porcelain is firing photograph of tall aluminous brick is compared, its are fought come off performance is better, but temperature of its loading bate is inferior, fight aggressivity can poorer, because this sluggish wants to join a few electric frit corundum, Molaishi, with aggrandizement matrix. Phosphate combines tall aluminous brick to apply extensively at roof of cement rotary kiln, report to wait for kiln furnace place.

5, small expand tall aluminous brick

This brick advocate playing is with tall aluminium alumina is given priority to want a material, add 3 stone concentrate, according to tall aluminous brick manufacturing technological process is made. Expand to make tall aluminous brick right amount in use process, the key is to had chosen 3 stone concentrate and its granuality, control is very firing temperature, mineral part not comes the 3 stone that make choose petrifaction, rudimental part 3 stone are mineral, 3 stone of remain are mineral farther in use process Molaishi is changed (or 2 times Molaishi is changed) , supporter bulk expands. The 3 stone of the choice are mineral with composite material had better. Decompose temperature minerally because of 3 stone each are not identical, not come to what petrifaction arises to expand to also have difference each. Use this feature, because working temperature differs and tall aluminous brick has expand accordingly effect, extruding brick is seamed, the whole that improved line put oneself in another's position is close-grained quality, raised a brick thereby fight slaggy permeate ability.