High Alumina Refractory Cement

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Product Description:

Specifications

Refractory Cement
high alumia refractory
1.Quick hardening and early strengthening
2.Good quality with competitive price

High Alumina Refractory Cement  

Product Description

Applications

1.Used as building refractory cement.

2.Furnaces lining material of metallurgy industry, heat treatment furnace.

3.Furnace lining material of incineration of garbage, recirculating fluidized bed furnace.

4.Furnaces lining material of chemical industry and construction industry.

Typical Features:

1.Low thermal conductivity, excellent thermal insulation, low liner shrinkage.

2.Good integrity with furnace lining, long service life, easy operation, could be shaped freely.

3.Allow direct contact of fire, suitable for various atmosphere.

4.High strength and good thermal shock resistance.

Specifications:

Item

Unit

75% Alumina Index

40% Alumina Index

Al2O3

%

≥75

≥40

CaO

%

≥2.5

Bulk density            

110°C×24h

g/cm3

≥2.65

≥2.3

1100°C×3h

g/cm3

≥2.65

≥2.3

Crushing strength            

110°C×24h

Mpa

≥45

≥40

1500°C×3h

Mpa

≥70

≥60

Rupture strength

110°C×24h

Mpa

≥6

≥6

1500°C×3h

Mpa

≥10

≥8

Linear change rate at 1100°C

%

-0.1~-0.5

±0.5

Highest Application Temperature

°C

1500

1350


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Q:Could you tell me how does fire protection standard of decorative material is divided?
Building materials can be divided into four levels according to combustion performance (non-combustible, flame retardant, flammable, flammable). According to the Code for Design on Building Fire Protection and Prevention (GBJ16-1987) (revised in 2001):, the fire risk of production or storage is divided into a, b, c, d, e classes. Divided by plate material: structure material, base layel materials and fabric; Divided by fire protecrtion type: easy to burn, difficult to burn, flame retardant, incombustible material. Material has no fire rating, only the different from the time of combustion limit. Combustion performance grade A of commonly used adornment material: granite, marble, terrazzo, cement products, concrete products, gypsum, lime products, clay products, glass, ceramic tile, Mosaic, steel and alloy. I hope my answer can help you.
Q:What are refractory materials?
Refractories can be divided to two categories based on the shape and three categories according to the chemical nature of acidity, neutralily and alkalinity. Alkaline refractory materials are magnesia-carbon brick, magnesia chrome brick, calcium magnesium brick and magnesia-chrome bricks. Neutural refractory mateial are high alumina brick, corundum brick and clay brick. Case-hardened refractory materials are castable, ramming mass, gunning mix, coated mix, dry vibration material, etc.
Q:What kinds of refractory materials that uses a-Al2o3 powder? What are the purpose of it?
04La-Al2O3 powder is a alumina powder whose raw material is industrial aluminum oxide which has been calcined at high temperature. It is a good polishes for ceramics and jade, meanwhile, it is also an important raw material for high-end refractory materials. The technical indicators parameters A1023 mark A1535 chemical composition AL2O3≥ 99.92 3%, ≥ 3.10FE203≤ 0.799 Refractory calcined alumina powder (a-Al2O3) 1.2 true density (g & # 47, by fully ground powder made of different fineness .O.10 0.07 0.04NA2O≤ 0.93a-Al2O3 (%) ≥ 95 95 primary crystallization average grain (um) 2 ~ 3 3 ~ 5 average particle size (um) 40 ~ 602.6SIO2≤ 0.1 0.15B2O3≤ - 0, glass, engineering ceramics typical use electronic ceramic insulating ceramic refractory ceramic wear 3
Q:What is the type of heat resistance property of high temperature electric furnace ?
According to the levels of refractoriness : Common refractories: & Gt: 1580 ℃ ~ 1770 ℃ advanced refractories: 1770 ℃ ~ 2000 ℃ AAA refractories; 2000 ℃
Q:What are the applications of refractory?
Refractory usually refers to the inorganic non-metallic material, whose refractoriness is above 1580℃. And it can be used for necessary parts. You can search more information on the Internet. It can be used in ferrous metal metallurgy, chemical, ceramics and so on. Fire material generally refers to above 1580 ℃ refractoriness of inorganic material, where the material can be used in corrosion, the network is very strong look, we know that colored when the metallurgical, chemical-resistant ceramics, etc. of industrial production high temperature. Different things are needed in different industries.
Q:Are the rubber insulation materials are refractory materials?
Bushi
Q:How do refractory materials apply into pyrophyllite?
When it is sized, add some clinker and after calcination, aggregate will be finished. From: turn to help
Q:What's the heat conductivity coefficient of fire-resistant material?
The heat conductivity coefficient of fire resistant material is related to bulk density and mainly related to the internal structure. Different materials have different structure and thermal conductivity and temperature . Carbonaceous material can be used for heat dissipation and reach more than 15. For thermal insulation it can be 0.00.
Q:What materials are needed to make the amorphous refractory bricks?
Amorphous refractory bricks have good quality, good reputation, complete in specifications,high refractoriness, strong resistance to slag, and long service life. It’s worthwhile.
Q:What parts of cement kilns are refractories used on?
Generally they are used in cyclone, feed pipe, and duct and refractories are high-strength alkali-resistant castable, calcium silicate board, high-strength alkali-resistant brick, dome-shaped alkali resistant brick. Refractories in smoke chamber are high-alumina refractory castable, anti-skinning pouring material and calcium silicate board. Refractories in duct are high-strength alkali-resistant bricks, calcium silicate boards and steel fiber reinforced castable. Refractories in hooding parts of kiln are high strength castable high alumina and calcium silicate board. Refractories in rotary kiln are phosphate bonded high alumina brick, silmo brick, magnesia chrome brick, steel fiber reinforced castable. Refractories in grate cooler are vault alkali brick, high alumina refractory castable, steel fiber reinforced castable and calcium silicate board. Refractory in coal burner is dedicated castable for coal burner.

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