High Temperature Ceramic Rollers For Kiln

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Product Description:

Specifications

1. High temperature
2. Good insulation
3. High strength
4. Precision Process

1) Materials: 50% -99.98% alumina oxide content
2) Application: Used for all kinds of electric heating equipment and electric
Equipment, and textile machinery
3) Good smooth and high strength
4) A variety of specifications available


Features:
1. High Mechanical Strength
2. High Thermal Conductivity
3. High Spalling Resistance
4. High Softening Temperature
5. Excellent Insulativity
6. Etching Resistance

Application:

Temperature measuring meters
Protection and insulation for thermocouples and thermometers
Furnace tube for resistance furnaces, heat treatment furnaces
Chemical analysis for steel and iron
Various insulationg parts for high temperature resistance and etching resistance

Structure Model:
Round and oval
Mono hole/single bore, double hole/twin bore and multi hole/multi bore
Threaded
Rhombohedral

High Purity Alumina Tubes:
1. Extreme high temperature stability under reducing, inert and high vacuum condition under high temperature up to 1800C.
2. Extreme wear and abrasion resistance.
3. Chemical corrosion resistance under high temperature.
4. High dielectric properties.
5. Gas tight for many applications to provide protective atmospheres or high vacuum at high temperature to eliminate contamination or impurity.

Specification:

Chemical competent

Al2O3

≥85%

SiO2

<12%

Fe2O3

<0.5%

Alkaline matter

<2.5%

Density

2.6 g/cm3

Hardness

7 M

Water absorption

<0.2%

Rupture  strength

>1300kg/cm2

Gas tightness

Kept for ten minutes at negative pressure of 1.3Kpa. The pressure drop is less than 0.3Kpa.

Heat tolerance

Insert the pipe into the furnace at a depth of 20mm. Heat to 1600ºC and maintain for 30 minutes.

Alkali tolerance

In the Na2CO3 solution of 2N concentration, boil for 15 hours with the weight loss not greater than 20mg/dm2.

Volume resistance

>2*10(5) Ω·cm/1300ºC

Breakdown voltage

18kv/cm

Expansion coefficient

5*10(-8)

Temperature for use

Long-term: 1400ºC  Short-term: 1600ºC











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Q:Which is better, asbestos free calcium silicate and aluminium silicate refractory fiber?
Aluminum silicate fiber can be divided into many kinds according to the aluminum content, the use temperature range is relatively large, the heat insulation property is good, but the price is more expensive.
Q:What are the raw materials of cement products? What's the function?
Cement has a great influence on the properties of concrete. The kinds and quantities of cement containing minerals and the fineness of cement will affect the quality of cement products. The calcium silicate three in cement is an important factor in the coagulation of cement products. The reaction between three calcium silicate and water leads to the production of hydrated calcium silicate, and the hydrated calcium silicate gel acts as a cementing agent for aggregate and aggregate in concrete.
Q:What are the high temperature resistant insulation materials at 400?
Thermal insulation materials for thermal equipment and pipes are mostly inorganic insulation materials. This kind of material has the characteristics of no decay, no burning, high temperature resistance and so on. For example: asbestos, diatomite, perlite, glass fiber, foam glass concrete, calcium silicate and so on.
Q:What is a building energy-saving materials?
As far as its varieties are concerned, the new wall materials mainly include bricks, blocks and slabs, such as clay hollow bricks, waste clay bricks, non clay bricks, building blocks, aerated concrete, light plates and composite boards.
Q:What are the production methods of calcium silicate board material?
The two reaction method (also called combined method) is the most complete and easy to obtain process of high temperature, light weight and high strength calcium silicate products and calcium silicate boards, but its disadvantages are long process, high energy consumption and large investment.
Q:What's the difference between white cement and ordinary cement?
White portland cement as the raw meal with the proper components till the partial melting of the calcium silicate as the main ingredient, the iron content in clinker less addition of gypsum, white water ground made of rigid cementitious material. When grinding cement, allow limestone not to exceed 5% of the cement weight. White cement is mostly ornamental, and its manufacturing process is much better than ordinary cement. The gap is mainly used to hook white tiles, is generally not used in the wall, the reason is not high strength. It is available in the building materials market or decoration materials shop.
Q:Calcium silicate board for house ceiling, 6mm or 8mm?
Calcium silicate board with fire prevention, moistureproof, sound insulation, thermal insulation, indoor air in wet conditions can attract water molecules in air, air drying, and the release of water molecules, can adjust the indoor humidity, dry, increase comfort. Natural gypsum products and special fireproof material, the flame can produce endothermic reaction, at the same time, the release of water molecules to prevent the fire from spreading, and does not produce any toxic decomposition, corrosive and choking gas, will not produce any smoke or combustibles.
Q:What are the main use of lime?
Lime stabilized soil mixes lime powder or lime powder with various crushed or formerly loose soil, and is obtained by mixing, compacting and curing. It is called lime stabilized soil. It includes lime soil, lime stabilized gravel soil, lime crushed stone soil and so on. Lime stabilized soil has a certain strength and water resistance. Widely used as a building foundation, ground cushion and road base.
Q:Why is calcium silicate board unsuitable for use in home improvement?
Calcium silicate board called gypsum composite board, is a kind of porous material, good sound and heat insulation, in indoor air moist circumstance can attract water molecules in air, air drying, and the release of water molecules, can adjust the indoor humidity, dry, increase comfort. It is super fire gypsum material, the flame can produce endothermic reaction, at the same time, the release of water molecules to prevent the fire from spreading, and does not produce any toxic decomposition, corrosive and choking gas, will not produce any smoke or combustibles.
Q:What is the best price for the use of calcium silicate ceiling?
Neither calcium silicate nor silicate boards are afraid of water because they are mixtures of gypsum and fiber.

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