Magnesia Spinel Brick

Short Description:

Magnesia spinel bricks use high-purity magnesia and magnesia alumina spinel as the main raw materials. The firing temperature and firing atmosphere are strictly controlled to make it have good flexibility and thermal shock stability, kiln skin performance and corrosion resistance The performance exceeds that of high-quality magnesia chrome bricks.


Product Detail

PRODUCTIVE PROCESS

PACKING AND SHIPPING

Product Tags

Description


Magnesia spinel bricks use high-purity magnesia and magnesia alumina spinel as the main raw materials. The firing temperature and firing atmosphere are strictly controlled to make it have good flexibility and thermal shock stability, kiln skin performance and corrosion resistance The performance exceeds that of high-quality magnesia chrome bricks.
Magnesium aluminum spinel has good corrosion resistance, strong corrosion and peeling ability, good slag resistance, abrasion resistance, thermal shock stability, high temperature resistance and other performance characteristics. It is an ideal raw material for the production of refractory products such as magnesia spinel bricks for high-temperature zones of cement rotary kilns, ladle lining bricks and ladle castables. Magnesium-aluminum spinel is widely used in refractory materials, steel smelting, cement rotary kilns and glass industrial kilns.

Features

Excellent kiln hanging performance / Low thermal conductivity, low thermal expansion coefficient

Has excellent structural flexibility

Strong resistance to erosion and penetration / High load softening temperature / Excellent thermal shock resistance

Application

1. Instead of magnesia-chrome brick sand, manufacture magnesia spinel bricks for cement rotary kilns, which not only avoids chromium pollution, but also has good spalling resistance.

2. Used to make ladle castables, greatly improving the corrosion resistance of steel plate linings. It is widely used in refractory materials for steelmaking. The preparation of high-quality pre-synthetic spinel provides new raw materials for the production of unshaped and shaped high-purity refractories.

Physical And Chemical Indicators

Brand / Properties

Magnesite alumina spinel brick

MAJ-75

MAJ-80

MAJ-84

Bulk Density (g/cm3)

2.90

2.95

2.95

Cold Crushing Strength (MPa)

45

45

60

Apparent Porosity (%)

19

19

18

Thermal Shock Resistanceat 1,100℃

water cooling

12

15

20

Refractoriness under Load ℃ (0.2MPa T2)

1600

1700

1750

Chemical Composition (%)

MgO

75

80

84

Al2O3

8

12

14

Main Applications

- Metal Line, Free Board for General Ladle
- Permanent Line for Ladle (Wall)
- firing zone in rotary kiln
- upper and lower transition zone for rotary kiln

Productive Process

1.Raw material quality control including physical and chemical testing.           
2.Crushing and grinding of bulk raw materials.
3. According to customer data sheet required to mixing Raw Material.
Pressing or shaping the green brick depend on different raw material and brick shape.
4.Dry the bricks at dryer kiln.
5.Put the bricks into the tunnel kiln to burning by higher temp from 1300-1800 deg.
6.The quality control department will inspect the finished refractory bricks random.

Packing And Shipping

Packaging  according to safety sea-exporting packing Standard
Dispatch : loading the finished packing material at factory by container Door toDoor   
By sea fumigated wooden pallet + plastic belt  + plastic film wrap.


  • Previous:
  • Next:

  • 1.Raw material quality control including physical and chemical testing.           
    2.Crushing and grinding of bulk raw materials.
    3. According to customer data sheet required to mixing Raw Material.
    Pressing or shaping the green brick depend on different raw material and brick shape.
    4.Dry the bricks at dryer kiln.
    5.Put the bricks into the tunnel kiln to burning by higher temp from 1300-1800 deg.
    6.The quality control department will inspect the finished refractory bricks random.

    Packaging  according to safety sea-exporting packing Standard
    Dispatch : loading the finished packing material at factory by container Door toDoor   
    By sea fumigated wooden pallet + plastic belt  + plastic film wrap.

  • Write your message here and send it to us

    PRODUCT CATEGORIES

    Focus on providing mong pu solutions for 5 years.