TitleProduct

Mullite Castable

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Shandong

  • Validity to:

    Long-term effective

  • Last update:

    2020-08-13 06:15

  • Browse the number:

    296

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Company Profile

Qingdao Unichance Tech Co., Ltd

By certification [File Integrity]

Contact:lianhong(Mr.)  

Email:

Telephone:

Phone:

Area:Shandong

Address:Shandong

Website:http://www.ucrefractory.com/ http://lianhong.apexmould.net/

Product Details

Mullite castable is a refractory castable which is made of high-quality porous mullite aggregate, plus fine powder and additives.
The material ratio can be adjusted according to the actual usage of the boiler, and customized production can be carried out. The critical particle size of mullite aggregate is 12mm; Long-term use temperature is 1350℃.

It has high mechanical strength and good thermal shock resistance, abrasion resistance and other properties. Mullite castable has
high service temperature and can be directly contacted with flame to be used as working lining, thus realizing high temperature and energy saving; Light unit volume weight, reduced structural weight by 40 ~ 60%, and eliminated
the hidden danger of broken bricks of hanging bricks on the top of the furnace; It can dry off the oven immediately after construction, shorten the drying period, and have remarkable economic benefits.

The use of mullite refractory castable proves that this castable has good fluidity, stripping resistance and heat preservation
performance, and is suitable for application in high temperature parts of heating furnace. It has obvious effects on prolonging the service life of the furnace body, reducing the thermal conductivity of the heating furnace
body and improving the thermal efficiency. In addition, lightweight aggregate with different bulk density has a great influence on the index of mullite refractory castable, so should be carefully selected.

Application: Mullite castable is suitable for the lining of tubular heating furnace, light diesel oil, ethane cracking furnace,
atmospheric and vacuum furnace, sulfur recovery device, steam boiler, Hexsteel insulation layer, cylinder and pipe insulation single layer, door lining of other industrial furnaces, fire watch hole and observation hole door,
etc. It can also be used as the lining of circulating fluidized bed boiler water cold air chamber, insulated air chamber, boiler, blast furnace hot blast stove, heating furnace, ceramic kiln, etc.

Tech Data:

Items

Mullite

Mullite+ Corundum

Mullite+ Corundum+ Steel Fiber

I

II

III

Bulk density(Min, g/cm3)

2.50

2.75

2.75

Composition(%)

AL2O3≥

65

75

75

SiO2≤

25

20

20

Crushing strength

(Min, Mpa)

110℃×24h

100

100

100

1100℃×3h

110

120

120

1500℃×3h

-

130

130

Modulus of rupture

(Min, Mpa)

110℃×24h

10

10

10

1100℃×3h

10

12

12

1500℃×3h

-

12

12

Permanent liner change

(3h,%)

1100℃×3h

-0.1~-0.3

-0.1~-0.3

-0.1~-0.3

1500℃×3h

-

-0.5

-0.5

Service temperature (Max,℃)

1500

1600

1600



http://www.ucrefractory.com/