Raw Materials for Refractory - Silicon Carbide for Abrasives and Refractory
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
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Silicon Carbide For Abrasives and Refractory
1.Green, crystal structure, high hardness and strong cutting ability, stable chemical characteristics, good thermal conductivity.
2.Among abrasives, silicon carbide’s hardness is higher than corundum, and ranked below diamond, CBN and boron carbide.
3.Density generally viewed is 3.20−3.25g/ mm3 , natural bulk density is 1.2−1.6g/ mm3 , specific gravity is 3.20˜3.25g/ mm3.
Raw material are petroleum coke and quality silicon sand, appended with salt, then smelted in electric arc furnace. Mechanical strength is higher than corundum.
Particle size comparison of commonly used abrasive:
Particle size distribution (micron) | Chemical composition | Physical composition | |||||||
Size | D3 | D50 | D94 | SiC ≥(%) | Fe2O3 ≤(%) | F•C ≤(%) | PH Value | Bulk Density | Magnetic Materials≤(%) |
GC#800 | ≤20.0 | 14.0±1.0 | ≥9.0 | 99.00 | 0.20 | 0.2 | 6--8 | 1.18 | 0.008 |
GC#1000 | ≤18.3 | 11.5±1.0 | ≥7.0 | 98.50 | 0.20 | 0.2 | 6--8 | 1.15 | 0.008 |
GC#1200 | ≤17.5 | 9.5±0.8 | ≥5.5 | 98.50 | 0.20 | 0.2 | 6--8 | 1.13 | 0.005 |
GC#1500 | ≤14.5 | 8.0±0.6 | ≥4.5 | 98.00 | 0.20 | 0.2 | 6--8 | 1.12 | 0.005 |
GC#1800 | ≤13.5 | 7.0±0.6 | ≥4.2 | 98.00 | 0.20 | 0.2 | 6--8 | 1.05 | 0.005 |
GC#2000 | ≤13.0 | 6.7±0.6 | ≥4.0 | 98.00 | 0.20 | 0.2 | 6--8 | 1.00 | 0.005 |
Main applications:
solar and semiconductor wafer wire sawing; crystal and ferrite polishing; ceramic and special steel precision polishing; bonded and coated abrasive tools; cutting and polishing; non−ferrous metal lapping such as glass, stone, agate and high−grade jewelry; high−grade refractory materials , engineering ceramic, heating elements and thermal elements.
For wire-sawing of solar and semi-conductor
Usage:
Green silicon carbide is used for wire−sawing of monocrystal silicon, polocrystalline silicon, potassium arsenide, quartz crystal etc, it is the engineering processing material in solar photovoltaic industry, semi−conductor industry and piezoelectric crystal industry.
Feature:
1.high purity and large crystal silicon carbide ingots ensure the excellent cutting capability and stable physical condition.
2.Grains are isometric with sharp edge, which ensure the even self-sharpening capability as cutting material and minimum TTV of the products been cutted.
3.Particle size distribution is narrow and even.
4.High heat−resisting and refractoriness under load guarantee the small wire expansion in processing, suitable to all kinds of wire saw machine.
5.Grain surface possessed specially, micro−powder with clean surface and easily fit cutting fluid, such as polyethyleneglycol and so on.
Company Information
Q1. Will the FREE SAMPLES be provided for buyers?
- YES. We will provided FREE SAMPLE about 1kg
Q2. How about the express fee?
- Our company’s policy is the buyer pay for express fee.
Q3. Is there QUALITY REPORT for the products?
- YES. We provide quality report of our company or CIQ,SGS according to client‘s requirement
- Q: hat kind of fire retardant materials are there
- At present, there are mainly organic and inorganic flame retardant materials, halogen and non halogen. Organic flame retardant materials are represented by bromine, nitrogen and phosphorus and its compounds; Inorganic fire retardant materials include antimonous oxide, magnesium hydroxide, aluminum hydroxide, and silicon. Generally speaking, organic flame retardant materials have a good affinity, and can be added in the plastics. Brominated flame retardant agent occupy the absolute advantage among organic flame retardant system, though it’s “controversial” in terms of environmental protection, it has been difficult to have other flame retardant system replaced.
- Q: How to divide fire rating of decorating materials ?
- Generally speaking, it is divided into Level A: noninflammability; B1: difficult-flammability; B2: combustibility; B3: inflammability.
- Q: How to solve the shell, the crack problem of refractory material in the process of forming.
- Pressure mode and number of pressure control "spallation". 2, multiple pressure, pressure degree and discharge way: 1, reduce friction, choose appropriate, than big pressure disposable pressure produced by the plastic deformation, allocate reasonable grading, internal and external friction, reduce billet particles and high die wall bright. 4.--- solve the light one firstly. --moisture content being too high easily cause spallation - the compressibility of water is small and have certain elasticity, appropriately to extend the pressuring time is beneficial. The material can produce large plastic deformation under the effect of continuous load. The right amount of lubricant. - body under the condition of less pressure but long effect time molding. Mould structure is reasonable and improve billet natural stacking density. 5.3, measures to improve the unburned brick molding quality. Many times continuously pressure relief is better than one-off sudden unloading, and controlling the appropriate moisture content;- - is beneficial to air overflow.
- Q: Who can tell me about the foundry refractory materials?
- The classification of refractories commonly used in casting and smelting: refractory bricks: siliceous bricks, high alumina bricks, corundum bricks, magnesia bricks, magnesia-alumina bricks, magnesia-carbon bricks,etc. shapeless refractory materials: ramming?mass, castable refractory, refractory cement, silica sand, magnesite, etc.
- Q: What materials are needed to make the amorphous refractory bricks?
- I am so glad to answer your question. The amorphous refractory brick is composed of a certain proportion of aggregate and powder, a binder and an additive.
- Q: What needs to be noted when choosing and using blast furnace fireproof materials? Who knows?
- there are different temperatures in various parts of the blast furnace, thus using different types of refractory.
- Q: who knows how to classify the fire resistant levels of fireproofing material?
- Grade of fireproofing material: Class A: Incombustible building material, almost without burning. class A1: Non-combustible, no open flame,class A2: Non-combustible,it needs to measure smoke and be qualified. Class B1: Nonflammable building material: Nonflammable materials have good flame resistance function. when it contacts open fire or is under high temperature, it's difficult to burn and be spreading rapidly, and will stop burn after removing the combustion?source. Class B2: Combustible?building?materials: Combustible materials have good flame resistance function. when it contacts open fire or is put in the air at high temperature, it will immediately burst into flames, and easily result in the spreading of fire, such as wooden column, timber roof truss, timber beam, wooden stairs, etc. Class B3: Inflammability building materials, without any flame resisting effects, easy to burn, and has large danger of fire disaster.
- Q: How many external wall thermal insulation fireproof material are there
- Class A exterior wall insulation: Rock wool, glass wool, silicate, aluminum silicate, calcium silicate, phenolic foam, foam glass
- Q: Who can tell me the properties and classification of insulating refractories?
- Insulation materials can be classified according to service temperature, production process and application fields.
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Raw Materials for Refractory - Silicon Carbide for Abrasives and Refractory
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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