High Temperature Ceramic Rollers For Kiln
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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 | |
- Q: What are the production methods of calcium silicate board material?
- Calcium silicate (microporous calcium silicate) material and calcium silicate board are produced by static steaming method, dynamic hydrothermal synthesis method and two reaction method.
- 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: What's the difference between white carbon and carbon black? Can they be replaced?
- White carbon black in color rubber products instead of carbon black reinforcing, meet the needs of the white or translucent product. Anti aging performance of silica with strong adhesion force, tearing resistance and heat, so the black rubber products can replace part of the carbon black, in order to obtain high quality rubber products, such as off-road tires, engineering tire, radial tire.
- 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 three major effects of fly ash in concrete?
- The "form effect" of fly ash contains many glass beads, the surface is smooth and the texture is dense. It is this form to water reducing effect, compact and homogeneous effect, can promote the early hydration of cement flocculation effect of solution, change the mixture rheological properties, the initial structure and hardening of the various functions, especially for pumping concrete, can play a good role in lubrication.
- Q: Calcium silicate board white ICI belongs to wood surface paint?
- ICI can generally be considered as wall paint (latex paint), and latex paint can be used on this kind of cement board. And lumber is different, it is not suitable to brush latex paint on the surface of wood, it can only be decorated with paint (oil paint).
- Q: Cement is not silicate products
- Usually refers to silicate products with lime (calcium containing materials) and sand, fly ash, slag (siliceous materials), then add a small amount of gypsum, the steam steam curing or steam curing, building products quickly generate Tobey mullite, calcium silicate, hydrated calcium aluminate sulfate and hydrated calcium aluminate such as cementitious materials and production. Such as: autoclaved fly ash (sand), autoclaved aerated concrete, autoclaved fly ash brick, autoclaved sand lime bricks.
- Q: What's the use of low carbon steel insulated nail hooks for power plants?
- The current power plant thermal insulation is mainly carried out by use of various types of insulation materials, thermal insulation materials commonly used include calcium silicate products, pipes, rock and aluminum silicate fiber products, due to their different properties are applicable to different environments. The equipment with temperature at 300-600 DEG C often adopts aluminium silicate products and calcium silicate products to compound heat preservation. While the temperature is less than 300 degrees, the mineral wool products are usually used for thermal insulation.
- 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: What are the exterior walls of the building besides the benzene board and the extruded board?
- Foam heat insulation material mainly includes two categories, polymer foam type insulation material and foam asbestos insulation material. Polymer foam thermal insulation material has the advantages of small absorption rate, stable heat preservation effect, low thermal conductivity, no dust flying in construction, easy construction, etc., and it is in the period of popularization and application.
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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
OKorder Financial Service
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