High alumina brick of hot air stove

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       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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Q:What's the difference between a well type annealing furnace and a box type annealing furnace?
Box annealing furnace application: mainly used for quenching, normalizing, annealing and other conventional heat treatment equipment for steel parts. Features: 1, electric loading, high productivity, heat treatment is especially suitable for small and medium-sized parts, such as 30%, uniform temperature, intelligent digital display meter PID (pictured) automatic temperature control, high precision; 2, electric discharge loading convenient, as good; 3, door and seal the oven body is sealed automatically, without manual seal; 4, equipped with electric interlock protection device, and can prevent the fault accident due to the error. Bell type annealing furnace four bell type annealing furnace bell type annealing furnace is mainly used for annealing sheet metal in natural atmosphere and normalizing treatment of steel parts. 1, special steel, precision alloy large all fiber trolley type resistance furnace, strip, wire bright annealing. 2 、 annealing of special steel casting and forging. 3. Annealing of silicon steel sheet. 4, metal and non metal powder sintering pieces etc..
Q:Corundum, high alumina and fireclay refractory difference is what
They differ in that the alumina content is different, and the content is in order: corundum > high alumina > clay.
Q:What are the main components of high alumina bricks?
High alumina brick materials according to the main mineral phase can be divided into: aluminum silicate minerals, such as sillimanite, kyanite, andalusite, and synthetic mullite.
Q:How to test the aluminium bricks of high alumina refractory bricks?
Before making bricks, the raw materials are usually tested and tested to see if the aluminum content is up to standard
Q:How much is one ton of high alumina refractory brick?
Three high aluminum refractory brick Zhengzhou Kuwait is generally around 800. 32 years of experience, good.
Q:Application characteristics of high alumina brick
Load softening temperature. The softening temperature of high alumina brick products decreases with the increase of silica and alkali metal oxide content, but is higher than that of clay brick products, which is about 1420 - 1530 degrees centigrade. Al2O3. The softening temperature of corundum brick with content greater than 95% can reach above 1600 DEG C.
Q:What is the heat preservation material used in a laboratory furnace?
Asbestos, high alumina brick, or carbonized silicon are often used.Thermal insulation materials are generally used to guide heat coefficient less than or equal to 0.2 of the material. Thermal insulation material development is very fast, and in industry and building the use of good insulation technology and materials, often can get twice the result with half the effort. Each ton of mineral cotton insulation used in the building saves one ton of oil a year.
Q:What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?
The brick Pei boring and time. 6, Pei brick kiln installed between the brick and the brick Pei order, Pei and kiln top, kiln wall gap etc.. 7, high alumina brick kiln plan, and the lack of edges and corners of the scene should be avoided.
Q:How high can aluminum bricks expand at 80O degrees of heat?
When an object is heated, the particle moves faster and thus occupies additional space. This phenomenon is called dilation.
Q:What is the content of free silica in the refractory bricks of high alumina bricks?
Refractory powders are not rich in free silica in varying degrees

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