Furnace sillimanite brick

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Product features: the blast furnace with sillimanite brick using synthetic mullite, optimization of alumina, high quality flint clay as the main raw material, after high pressure forming, high temperature sintering, the main mineral of mullite. Product has low porosity, load softening point, good creep resistance, chemical corrosion resistance and excellent seismic stability characteristics, mainly for the lower part of blast furnace throat tube, iron estuary, tuyere zone.

Physical properties and chemical composition

Item

GXS-50

GXS-60

MLS-65

Chemical composition

Al2O3

≥50

≥60

≥65

SiO2

≤45

≤38

≤33

Fe2O3

≤1.2

≤1.0

≤1.0

Apparent Porosity%

≤18

≤18

≤17

Bulk Density g/cm3

≥2.4

≥2.5

≥2.55

Cold Crushing Strength Mpa

≥45

≥50

≥60

0.2Mpa Refractoriness Under Load T0.6 °C

≥1550

≥1600

≥1650

Permanent Linear Change On Reheating(%)

1500°C*2h

±0.1

±0.1

±0.1

Thermal Shock Resistances 100°C water cycles

≥20

≥20

≥20

Reversible Thermal Expansion 1000°C

0.55

0.6

0.6

Pyrometric Cone Equivalent S.C. SK

35

36

38

Range of Application

Rider Arches

Superstructure

forehearth

Superstructure

forehearth




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Q:What are the main constituents of refractory bricks?
Clay brick and clay brick are mainly composed of mullite (25% ~ 50%), glass phase (25% ~ 60%) and square quartz and quartz (up to 30%). Usually with hard clay as raw material, pre calcined mature material, and then with soft clay, semi dry or plastic molding, the temperature at 1300~1400 C fired clay brick products. Can also be added a small amount of water, glass, cement and other binders to make non burning products and amorphous materials. It is a refractory brick commonly used in blast furnaces, hot blast furnaces, heating furnaces, power boilers, lime kilns, rotary kilns, ceramics and refractory bricks.
Q:Are clay bricks radioactive?
Radiation is almost invisible, radiation is almost everywhere.
Q:does the furnace wall use refractory bricks to keep the heat? Or use the insulation material to keep heat ?
if use the rock wool or aluminum silicate, the furnace arch and furnace wall of biomass boiler all use refractory brick, and outside the furnace wall there is a layer of insulation material, some is perlite coal-fired boiler
Q:What is the structure of magnesium aluminate spinel?
The crystal is composed of eight faces, eight bodies and twelve faces of diamond
Q:Which is good, glazed brick and whole cast glazed brick?
These two tiles have their respective advantages and disadvantages, in fact, to say which kind of good, mainly depends on the decoration of personal preferences and the location of the shop. If it is only the shop wall, then design and pattern rich whole glazed tile is good, it can make the room impressive, improve decorative effect, make the decoration style to fit the characteristics of his personality. In addition, clean up is relatively easy, not easy to contaminated with oil stains and other pollutants. If you are laying tile, suggested the use of tiles, tiles of good antiskid effect, water absorption rate is relatively low, so the kitchen toilet bathroom and other wet places is not easy to water seepage, improve the convenience of life.
Q:What are the differences between thermal insulation bricks and refractory bricks?
Thermal insulation brick is thermal insulative; refractory brick is high temperature resistant.
Q:What material is sk-34 on the refractory brick
Electric power; refractory bricks, castable refractory, building materials, chemical, glass, ferrous metals and other industries required refractory and insulation materials, all kinds of thermal insulation cotton products, thermal insulation brick, aluminous refractory cement, perlite and other unshaped refractory materials have been the best-selling products
Q:Classification of refractory bricks
Q:2000 degree of high temperature materials, which belong to high temperature insulation materials?
What can withstand 2000 degree high temperature materials on the market? What are the materials belong to high temperature materials? High temperature insulation material the most common are the following: calcium silicate shell, aluminum silicate cotton felt, glass surface, diatomite, vermiculite, foamed cement etc.. Among them, the first three are the most common, especially the aluminum silicate cotton felt, which can withstand 650 degrees of high temperature.
Q:What's the price of lightweight refractory bricks?
In addition, general price comparisons are meaningless and need to be based on the use of demand = quality of products. After all, good quality is the driving force of continuous production.

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