HY-SIO2 97% Silicon Carbide (SIC) High Purity Silicon Carbide - Factory Direct Manufacture

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HY-SIO2  97%  silicon carbide (SIC) high purity silicon carbide - Factory Direct manufacture

silicon carbide

Silicon carbide

silicon carbide (SiC) with quartz sand, petroleum coke (or coal), wood chips as raw material in electric arc furnace smelting made. In nature there are silicon carbide rare mineral, Moissanite. Silicon carbide, also known as Moissanite. In contemporary C, N, B and other non-oxide refractory materials in high-tech, silicon carbide is the most widely used and most economical one. Can be called emery or refractory sand. Silicon carbide is quartz sand, petroleum coke (or coal), wood chips (need to increase the production of green silicon carbide salt) and other raw materials at high temperature resistance furnace smelting. At present, China's industrial production of silicon carbide is divided into two kinds of black silicon carbide and green silicon carbide, are hexagonal crystals, accounting for 3.20 to 3.25, micro hardness of 2840 ~ 3320kg / mm2.

 

Uses 
(A) as an abrasive, can be used for abrasive, such as wheel, Whetstone, grinding, sand tile and so on. 
(2) as a metallurgical deoxidizer and high temperature materials. 

 

Silicon carbide has four major application areas, namely

functional ceramics, advanced refractories, abrasives and metallurgical materials. Silicon carbide has been able to present a large supply of coarse material, can not be considered high-tech products, and high-tech applications nanoscale silicon carbide powder is impossible to form a short period of economies of scale.

 

Silicon Carbide Chemical Specification: 

 

Spec

Green Sic

Black Sic

Min   %

Min %

Max %

Max %

Max %

SiC

99

97

95

92

90

Free Carbon

0.2

0.5

1

2.5

3

Fe2O3

0.2

1.0

1.5

2.0

2.5

SiO2


1.5

2.5

3.5

4.0


HY-SIO2 97% Silicon Carbide (SIC) High Purity Silicon Carbide - Factory Direct Manufacture

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Q:I want to consult the fire resistant level standards of external wall thermal insulation materials.
1, The thermal insulation material that has level A combustion performance: Spraying inorganic fiber, glass wool, foam glass, ceramic foam, rock wool, foam cement and perlite obturator, and so on. 2, The thermal insulation material that has level B1 combustion performance: Special processed extruded polystyrene board (XPS) / special processed polyurethane (PU), phenolic and polystyrene powder. 3, Thermal insulation materials that have level B2 combustion performance: Molded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. See article 4.3.6 in the 2009 edition construction technical measures. Level A insulation material is just for fire protection, so its thermal insulation performance is worse than the organic XPS or EPS materials. Hope this will help you.
Q:Who knows the fire endurance of B-level fireproof doors and windows?
According to the fire endurance, fireproof doors can be divided into A-grade, B-grade and C-grade, whose fire endurance should not be less 1.2h, 0.9h and 0.6h respectively. Fire endurance of fireproof windows: A-grade fireproof windows are not less than 1.5h and B-grade fireproof windows are not less than 1h. The door leaves of A-grade and B-grade fireproof windows should be steel materials, and their glass should be composite fireproof glass whose thickness is no less than 26mm. Monolithic fireproof glass window is not B-grade fireproof window, nor A-grade fireproof glass window. It si called non-insulated fireproof window.
Q:Does anyone know about the fire resistance period of thin fireproof coatings?
The thin fireproof coatings will be expanded when exposing to open fire, and produce the inert gas to extinguish fire, but they will do harm to people, and the coatings are not stable, and the weather resistance and service life of which are short. According to the state regulations, the thin fireproof coatings have the highest fire resistance of only 2.5 hours, while the thick steelwork fireproof coatings have a fire resistance of 3.0 hours or more.
Q:What are the insulation fireproofing materials?
Asbestos is the most common. Asbestos containing zirconium and made of the mixture of zirconium aluminum and silicon through wire drawing is better. Of course, some are made directly from natural things which can withstand 1400 degrees for over 30 seconds while the internal temperature had no significant change, and withstand 1400 degrees for over five minutes while inside temperature increase does not exceed 5 degrees.
Q:What kind of materials are needed to make refractory bricks?
The components of the raw materials of refractory bricks. There are many types of raw materials, mainly divided into six categories: Earth, stone, sand, ore, powder and others. No.1, earth: bauxite, kaolin, clay, kieselguhr. No.2 Two: stone: fluorite, kyanite, andalusite, forsterite, vermiculite, mullite, pyrophyllite, chlorite and dolomite, sillimanite and spinel, silica. No.3: sand: ceramic sand, zircon sand, quartz sand, magnesia. No.4, ore: chrome ore. No.5, powder: Metal powder, silicon powder, metal powder. No.6, others: Asphalt and graphite, phenolic resin, perlite, cenosphere, sialon corundum silicon sulfate, silicon carbide, water glass, silica sol, boron carbide, calcium aluminate cement, nitride materials, shale ceramsite, alumina, aluminum sol, zirconia.
Q:what is the material of fixed first rate fire resistant window?
Window frames and fireproofing glass, fire sealing strip, fireproofing glass mound layer, which is infexible fan, and the flexible fans have to plus folding and closing window cleaner. (3) window frames must be integral with the building, using wood or iron to connect the wall. After the installation of the steel frame, the cement mortar must be watered between the window frame and the wall, and it should conserve more than 24 hours before normal use.
Q:What are the specifications of fireclay bricks?
Standard sizes of refractory bricks in our country are: 230mm × 114mm × 65mm; standard density: 1, Diatomite insulating bricks 0.7 g / cubic centimeter; 2, Clay bricks 2.9 g / cubic centimeter; 3, High alumina brick 3.2 g / cubic centimeter. You can convert according to the actual volume, and the reference value can be calculated.
Q:What's the type of fire proofing thermal insulation materials?
Hello! Fire proofing thermal insulation material can be classified as inorganic thermal insulation material and composite thermal insulation material. According to the form, it can be divided into fibrous veneer, mineral wool, rock wool, glass wool, aluminum silicate cotton, ceramic fiber, microporous diatomite, calcium silicate, expanded perlite, expanded vermiculite, aerated concrete, bubble foam glass, ash, glass, clay, foam concrete, and pasted paste powder polystyrene particles insulation pulp, etc. They are characterized by flame retardancy and fire proofing and thus can be used in buildings with high fire proofing class. Among them, calcium silicate, aluminum silicate and asbestos can also be used for the thermal insulation for heat supply pipelines.
Q:can slag tailings be used to be the base materials of refractory materials ?
the rest of it can be used as refractory additives. the scale currently used clay bricks to make high-temperature liquid. It is easy to produce large amounts of liquid because of the high iron content, instead of its refractoriness. But it can be used as refractory minaralizer.
Q:What is the fire endurance of fireproof glass cotton?
The highest temperature of fireproofing glass wool can be above 200 degrees, so it can be used for a long time,it's difficult to judge the special usage time, but its usually about 3 months and 8 hours every day.

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