• High Quality Alumina Cement Refractory Cement For Boiler System 1
  • High Quality Alumina Cement Refractory Cement For Boiler System 2
High Quality Alumina Cement Refractory Cement For Boiler

High Quality Alumina Cement Refractory Cement For Boiler

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000 m.t./month

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Packaging & Delivery

Packaging Details:Refractory Cement packing: uauslly bags within ton bag, or according to client's request.
Delivery Detail:10-30 days according to the quantity

High Quality Alumina Cement Refractory Cement For Boiler

 

Product Description

Refractory Alumina Cement

 

Description of alumina cement 

 

Refractory cement is a kind of the refractory material use high quality corundum, alumina magnesia spinel and fused magnetite as raw materials, this refractory mate-

rial is characterized of resistance of high temperature, resistance of erode and

emersion, long life used. What's more, it can be made difference kinds of ladle as your request

 

 

Items

silicon refractory mortar

refractory temperature

1700

bonding time 

1~2 minutes

refractory under load, 0.2Mp

1600

SiO2 content 

≥96%

particle size  

0.075mm ≥60, 0.5mm ≤1

 

 

 

 

Physical and chemical index of alumina cement

 

 

Ordinary refractory cement CA50

 

 Product  Performance

CA50-1

CA50-2

CA50-3

mineral phase composition

main crystal phase

CA

secondary crystal phase

CA2,C12A7, CT, C2AS

specific surface area(m2/kg)

≥300

condensation

(minute)

preliminary condensation

≥30

final condensation

≤360

bending strength

(Mpa)

24hours

5.5

6

6.5

72 hours

6.5

7

7.5

compressive strength

(Mpa)

24 hours

40

45

50

72 hours

50

55

60

application

used as binder to make traditional unshaped refractory material (concrete, refractory gunning material, etc)

 

 

 

High-grade refractory cement CA50

 

ProductPerformance

CA50-1

CA50-2

CA50- 3

mineral phase composition

main crystal phase

CA

CA

CA

Secondary crystal phase

CA2, C2AS

C12A7, C2AS

C12A7, C2AS

specific surface area(m2/kg)

≥400

≥350

≥400

condensation

(minute)

preliminary condensation

≥90

≥30

≥120

final condensation

≤360

≤360

≤480

 

bending strength

(Mpa)

6-8hours

-

4

4

24 hours

8

6

10

72 hours

10

7

11

 

compressive strength

(Mpa)

6-8hours

-

30

30

24 hours

70

50

75

72 hours

80

60

80

application

used as binder to make special unshaped refractory material

 High Quality Alumina Cement Refractory Cement For Boiler


Q:which kind of refractory is commonly used in the industry
Like silicon, magnesium calcium and metallurgy refractories, glass, silicon, etc., knowing the basic materials, and the businesses are not the same. I suggest that you can buy the refractory book to read.. Others include zircon, shapeless refractory material and so many other cement, such as magnesia, high alumina,ect.. Iron making is using the acidity material, continuous casting is using the clay, nonferrous metals and other types of more complex hot-press charcoal; steel making is using the alkaline, magnesium chrome, magnesium carbon, and clay,etc..
Q:What do refractory materials include?
What refractories are included? Refractories include AZS brick, corundum brick, direct-bonded?magnesia-chrome, carborundum brick, silicon nitride bonded silicon carbide brick, non-oxide refractory materials such as nitride, silicides, sulfides, borides and carbides, oxidation calcium, chromium oxide, aluminum oxide, magnesium oxide and beryllium oxide.
Q:How to divide the fire resistant level of construction thermal insulation materials?
Combining three versions of GB8624 (1997,2006,2011), external wall thermal insulation fire?rating can be basically divided into: A1, A2, B1, B2, B3 and other levels. There are many technical indexes for specific division. And it is mainly determined in accordance with the national standard GB8624 Building materials combustion levels.
Q:Where is refractory used? Thank you!
According to its refractoriness, it can be divided into ordinary refractory (1,580℃ to 1,770℃), high class refractory (1,770℃ to 2,000) and super refractory (above 2,000℃); according to chemical property, it can be divided into acid , neutral and alkali refractories, and including refractory used for special occasion. The current definition of refractory do not only depend on whether the refractoriness is above 1,580℃. At present, refractory is widely used as inorganic nonmetallic material of production equipment lining in metallurgy, petrifaction, cement, ceramics, power, etc. Refractory generally has good thermal shock resistance, chemical attack resistance, low thermal conductivity and coefficient of expansion, widely used in chemical, construction material, mechanical manufacturing, and ceramics, accounting for 50% to 60% in the total output. It can resist high-temperature action. Refractory has many varieties. Refractory materials are widely used in metallurgy; chemical properties divided by acidic refractories. In addition, cement, silicates. Refractoriness refers to that when cones sample made from refractory has no load. Currently, refractory refers to that is widely used in metallurgy, including neutral refractory and basic refractory.
Q:How to hang the suspended brick in the refractory masonry?
First you can fasten the girder and the suspended brick with screws, and then move them to the specified location by a crane. You can contact the refractory plant in Shanshan mountain, Ningxiang Countym, Hunan Province at 0731-7150098.
Q:Which brand of thermal insulating refractory is good?
The most famous is the dragon, Morgan, Luyang, which are good at making ordinary thermal insulation materials and whose products are cheap but quality. Guangdong ALISON nanometer aerogel is more expensive. The heat conductivity coefficient is 0.018. It can work under 1000℃
Q:What's the poured refractory material?
Frequently used poured refractory material: AZS brick, corundum brick, direct-bonded?magnesia-chrome?bricks, carborundum brick, silicon nitride bonded silicon carbide brick, nonoxide refractories like nitride, silicide, sulfide, boride and carbide, and oxide refractories like calcium oxide, chromium hemitrioxide, alumina, magnesium oxide and beryllia.
Q:What are unshaped fire-resisitance materials?
Refractory castable, refractory plastic material, usually classified according to construction and manufacture method, unfired bricks precast block, refractory pressed into material, refractory cast material, refractory coating, refractory ramming material there are many classification methods
Q:Concrete composition and function of magnesia bond used in refractory
According to the chemical composition and use can be divided into metallurgical magnesia, magnesia brick, magnesia brick, magnesia brick, magnesia calcium brick, magnesia brick and other varieties. Its performance is greatly affected by CaO/SiO2 ratio and impurities. High purity magnesia brick refractoriness under load and thermal shock resistance are better than the general magnesia brick. High refractoriness, has good resistance to alkaline slag and iron slag, is a kind of important senior refractories. Use of magnesia product production by sintering process, sintering temperature is 1500 ~ 1800 DEG C, in addition, you can also add chemical bond, made of brick and unshaped refractory material. Mainly used in open hearth furnace, electric furnace, converter, oxidation non-ferrous metal smelting furnace, cement kiln and alkaline refractory kiln etc..

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