High alumina brick of hot air stove

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Product Description:


       热风炉用高铝砖

项目
item

RL—65

RL—55

RL—48

Al2O3, %              不小于
min

65

55

48

Fe2O3,%               不大于
max

-

-

-

耐火度℃              不低于
Refractoriness        min

1780

1760

1740

荷重软化开始温度,℃  不低于
RUL                   min

1500

1470

1420

重烧线变化,%         1500℃x2h
P.L.C.                1450℃x2h

0—-0.4

0—-0.4

0—-0.4

显气孔率,%           不大于
A.P.                  max

 
22(24)

常温耐压强度,Mpa     不小于
CCS                   min

50

45

40

抗震稳定性,1100℃水冷,次
Thermal Shock Resistance(cycle)

                   
6

注:括号内的数值是蓄热室格子砖的指标 Note:The value in parentheses is there result of Checkers.

Product features: with high alumina brick of hot air stove USES Yang high quality bauxite clinker as main raw material, after high pressure forming, high temperature sintering, the main mineral composition of mullite, the product has excellent volume stability, low creep rate and good thermal shock resistance, are widely used in various parts of the hot blast stove.


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