High Temperature Ceramic Rollers For Kiln

Ref Price:
Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
-

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

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











Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:The ceiling of calcium silicate board and mineral wool board which is good
Mineral wool board ceiling is different than the calcium silicate board ceiling.Or with the calcium silicate board, mineral wool board first big thickness, increase the keel pressure, easy to cause the ceiling of the cave. Second, it is easy to produce some bug mineral wool board.
Q:What are the exterior walls of the building besides the benzene board and the extruded board?
Composite silicate insulation material has the characteristics of strong plasticity, low thermal conductivity, high temperature resistance, small drying shrinkage and so on. The main types are magnesium silicate, silicon magnesium aluminum and rare earth composite thermal insulation materials. But in recent years as a leader in thermal insulation material of Sepiolite Composite silicate insulation material, because of its good insulation performance and the application effect, has attracted great attention in the construction industry, has shown strong market competitiveness and broad market prospect.
Q:What are the new energy-saving building materials? What's new?
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 is the difference between calcium silicate board and cement fiber board?
Fiber cement pressure plate is cement, fiber and other raw materials, after pulping, molding, thousands of tons of press. Calcium silicate board is made of silica and calcium plus fibrous material after pulping and formed by chemical reaction in high temperature environment. Therefore, the difference between the two is very large, mainly in the following aspects:1, from raw materials, calcium silicate board and fiber cement pressure plate difference is mainly calcium silicate board cement content is little, with sand and fly ash instead of cement.2, fiber cement pressure plate is a physical product, calcium silicate board is a chemical product.3, fiber cement pressure plate has press, calcium silicate board has no press; calcium silicate board has autoclaved Fu, fiber cement pressure plate no..4. The density of the fiber cement pressure plate is higher than that of the calcium silicate board, the density of the fiber cement pressure plate is above 1.5g/cm3, and the density of the calcium silicate board is about 1.2g/cm3.5, fiber cement pressure plate thickness can do 2.5-100mm, calcium silicate board can not do less than 4mm of ultra-thin plates and more than 30mm super thick plate, general calcium silicate board manufacturers can only do 6-12mm thickness.6, the normal production of fiber cement pressure plate color is cement color, calcium silicate board color is white.
Q:Asbestos free calcium silicate board there is a crack in the kettle, what is the reason?
Calcium silicate slab blank (blank off off phenomenon is not forming tube adhesion fingerboard blank above)There are two reasons: one is the blank off the vacuum negative pressure is too large, the blank water is too low, low viscosity; two is felt blocked, the billet made worse.The solution is to reduce the negative pressure, strengthen the cloth washing.
Q:What heat preservation material is used for thermal insulation of steam pipe in power plant? How thick is the bag? Please advise!
Steam pipe in power plant thermal insulation rock wool board thickness, according to the temperature in the pipeline to choose, the higher the temperature insulation thickness is generally 80 to 150 mm.
Q:What are the raw materials of cement products? What's the function?
Water is necessary for the production of cement products, the role of water is to cement hydration. Generally, the water cement ratio of concrete is 0.40~0.65. If the water is too large, it will leave a hole in the concrete, which will affect the strength, density and durability of the concrete and even cause water leakage.
Q:What are the three major effects of fly ash in concrete?
Fly ash "micro aggregate effect" in the fly ash particle size is very small beads and debris in cement can be the equivalent of unhydrated cement grains, tiny beads equivalent to nano material and lively, can significantly improve and enhance the structural strength of concrete and improve the homogeneity of products, and compactness.
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 main use of lime?
A rigid inorganic cementitious material consisting mainly of calcium oxide. Lime is made from limestone, dolomite, chalk and shell with high content of calcium carbonate and calcined at 900~1100 DEG C. Lime is one of the earliest cementitious materials used in human life. Lime is widely used in civil engineering and can be used in medicine in our country.

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range