Refractory Bricks for Induction Melting Furnace

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
20000 m.t./month

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Product Description:

Product Description

Alumina bricks are made from bauxite of super quality, bonding chamotte and additives. The main Al203 content is 48%-99%. The advantages of high alumina bricks are high refractoriness, anti alkaline/acid erosions, good strength under high temperature and good thermal shock resistance. High alumina bricks were widely accepted in thermal equipment of metallurgy, petroleum, chemical industry, construction materials, machinery and militaries etc.
 
Various Grades Products for Your Different  Industries & Furnaces
 
High Alimina Bricks for blast furnaces
Corundum Mullite Bricks For Blast Furnaces     
Mullite Bricks for Blast Furnaces 
High alumina bricks for hot blast furnaces
Low Creeping High Alumina Bricks series for Hot Blast Stove  
Low Creeping Andalusite Bricks for Hot Blast Stove  
Low Creeping and Anti-Thermal Shock Alumina Bricks for Hot Blast Furnaces      
High Alumina Bricks for Blast Stove Burner
High Alumina Bricks for EAF Roof    
High Alumina Bricks for Ladles   
Anti-Spalling High Alumina Bricks for Cement Kilns
Unfired High Alumina Bricks for Cement Kilns
High Alumina Bricks for General Uses

Good Price & Fast Delivery  &  OEM Service

Usually we can finish the production within 30 days.  Some stardard products we have stocks in China or abroad which can make the delivery time very fast and short. 

We supply not only the standard size products, we also produce basing customers' drawings, after we check  your furnace application and drawings, we will give you the most cost efficient solutions.

Long Life Span and Best After-sales Serivice.

Our advanced production equipment and good educated workers & most strict quality control  process make sure the best quality bricks to be made from our production lines. We also supply good technical support after sales and grow together with our customers.

 

 

Specification:

Item                             Specifications

LZ-48

LZ-55

LZ-65

LZ-75

LZ-80

LZ-85

Al2O3 %

48

55

65

75

80

85

Fe2O3 %

2.5

2.5

2.0

2.0

2.0

1.8

Refractoriness°C

1760

1760

1770

1770

1790

1790

Bulk Density≥ g/cm3

2.30

2.35

2.40

2.45

2.63

2.75

Apparent porosity %

23

23

23

23

22

22

Refractoriness under load 0.2MPa°C

1420

1470

1500

1520

1530

1550

Cold crushing strength MPa

45

45

50

60

65

70

Permanent linear chang %

1500°C×2h

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4


why us

1. We are a manufacturer, which can control the cost easilier than trade company also can give you anwer more quickly.

2. As a manufacturer, we know much in technique and can give you more support in technique problem.

3.We establish the company and began to produce refractory materials since 1988. We have longtime and mature experience  for entire production.

4.Our products are complete in specifications with various of sizes.

5. We enjoy a good reputation in the customers in domestic and overseas markets.


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Q:What is the high temperature limit of refractory bricks and refractory soil?
Fire clay -- usually refers to folk point stove furnace set with a kind of soil, limit under atmospheric pressure of 1500 degrees fire clay soil 1, properties and uses: clay brick of weak acid refractory material, its thermal stability is good, suitable for hot blast furnace, boiler and flue, smoke chamber lining, etc..2, product specifications form: standard shape, general, special-shaped and special-shaped brick. Physical and chemical properties of fireclay bricks.
Q:What's the weight of the refractory bricks?
Fireclay refractory bricks: 3.4kg-3.8kg - according to the quality of raw materials, prices ranging from 1 yuan to 2.7 yuan, high alumina refractory brick: three, high aluminum in 3.9kg or so. Ordinary T-3 firebrick weight calculation method: 230*114*65*2.2/2.1.
Q:What refractory material does cupola lining use?
Materials defined as physical and chemical properties that allow them to be used in a high temperature environment are called refractory materials. Refractory materials are widely used in metallurgy, chemical, petroleum, machinery manufacturing, silicate, power and other industrial fields, the largest amount of metallurgical industry, accounting for 50% ~ 60% of the total output.
Q:How to test the aluminium bricks of high alumina refractory bricks?
Forming high alumina brick will be tested on some professional equipment, it is suggested that you can go to the professional testing department to know about it!
Q:What causes breakage of refractory bricks?
There are many factors that lead to the damage of refractory brick, can be divided into: the chemical loss (e.g. salt penetration, redox phenomenon), heat loss (burning, thermal shock), mechanical loss (kiln deformation, thrust, brick masonry quality etc.).
Q:How to reduce porosity of high alumina brick
In order to reduce the porosity of high alumina brick, the corresponding measures should be taken from the selection of raw materials, batching, mixing, molding and firing.The water absorption rate of the first grade high alumina bauxite clinker should be less than 5%, and the water absorption rate of two grade high alumina material should be less than 7%. Fine grinding of soft clay and bauxite clinker with less than 4% water content. Mixed fine milling ingredients with this, can reduce the porosity of bricks.
Q:Which thermal shock stability of clay brick and high alumina brick is good?
Generally, the thermal shock resistance of high alumina brick products is worse than that of clay brick products
Q:Does the chimney have high acid resistance?
The chimney particles and gases, mostly coal tar products, material acidic, therefore, take good acid resistance, acid proof brick, Grouts also used potassium silicate clay acid is preferred.
Q:What is the standard classification of high alumina bricks or high alumina bricks?
High alumina brick is one of refractory materials. The main component of this kind of refractory brick is AL2O3. High alumina brick refractory clay brick and brick than refractoriness to high. It belongs to high refractory. High alumina brick Al2O3 more, close to the neutral refractory material, can resist acid slag and alkaline slag erosion, because it contains SiO2, so the ability of alkaline slag resistance than acid resistant slag ability is weaker.According to the number of AL2O3 content is divided into, 55,65, 75,80 and so on several grades.
Q:Use of high alumina refractory bricks?
High alumina refractory brick in Al2O3 more, close to neutral refractory material, can resist acid slag and alkaline slag erosion, because it contains SiO2, so alkaline slag ability than acid resistance slag ability less.It is widely used in building blast furnace, hot blast furnace, furnace top, blast furnace, reverberatory furnace and rotary kiln lining. In addition, high alumina bricks are widely used as furnace regenerative checker, pouring system for plug nozzle, etc..

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