Raw Materials for Refractory - Fused Silica
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PRODUCT INFORMATION | |
Item | Fused Silica Powder |
Size | D50=9~11um |
Application | Epoxy insulation encapsulant material / Epoxy Molding Compound (EMC), Copper Clad Laminate (CCL), Electromagnetism Industry, Electronic Industry, Ceramic Industry, The Aerospace Industry, Glass Industry, Plastics Industry, Grinding Material Industry, Coating Industry, Investment Casting Industry, Thermal Insulation Product of Calcium Silicate, Refractory Material |
Model No. | R610 |
MOQ | 5 ton |
Material | natural silica rock after melting |
H.S. CODE | 25061000 |
PRODUCT CHEMICAL COMPOSITION AND PHYSICAL PROPERTIES | |
SiO2 | >99.99% |
Al2O3 | <0.015% 1000ppm |
Fe2O3 | <0.002% 50ppm |
Density | 2.2 |
Whiteness | >92% |
Moisture content | <0.05% |
Mohs hardness | 6.5 |
Igniting loss | <0.12% |
Appearance | powder |
- Q: Is fireclay corrosive?
- No. All of the refractory materials have stable chemical properties and their usability can be guaranteed under high temperatures.
- Q: What are the materials for refractory materials? What are their names?
- High temperature oxide materials in refractory special applications, such as aluminum oxide, lanthanum oxide, beryllium oxide, calcium oxide, zirconium oxide, refractory compounds, such as carbides, nitrides, borides, silicides and sulfides; high temperature composite materials, including metal ceramics, high temperature inorganic coatings and fiber reinforced ceramics.
- Q: How much is the content of boron carbide in refractory material?
- Boron carbide is used in refractory material. For example, generally we could add 0.2% of boron carbide into magnesia carbon bricks. It is suggested that 0.5% is enough, because it has strong effect in boosting melt. It is said that 0.5% would be alright since boron oxide after oxidation belongs to material of low melting point, so the amount should be limited within 0.5%-1%,
- Q: What kind of materials can be tested their electrical resistivity in the current refractory industry?
- fused cast bricks, fused zirconia corundum blocks, corundum, high zirconium
- Q: What antioxidant will be used in refractories?
- Antioxidant: Si, Al, Mg, Ti, AlSi, AlMg, SiC, TiC, ZrC and these metal nitride, boride. Sintering agent: different mechanism, Cr2O3 to promote the sintering of alumina;CaO/MgO style promote ZrO sintering;Siliceous ramming material to add boron bottles, magnesia coating and clay, etc.
- Q: Does anyone know about the classification standards of B2-level fireproof and thermal insulation materials?
- 1.The insulation materials with A-level combustion performance: EPS Hairong module, rock wool, glass wool, foam glass, ceramic foam, foam cement, closed-cell perlite, etc. 2. The insulation materials with B1-level combustion performance: specially-treated extruded polystyrene boards(XPS)/ specially-treated Polyurethane(PU), Phenolics, Polystyrene rubber powder particles,etc. 3. The insulation materials with B2-level combustion performance: Expanded polystyrene sheets(EPS), Extruded polystyrene boards(XPS), Polyurethane(PU), Polyethylene(PE), etc. See the 2009 measures of building technology. The A-level insulation material is only fireproof, the insulation performance of it is worse than that of organic XPS \\\\ EPS material. Currently I think that the best insulation material should be Hairong EPS module, it not only achieves the requirement of insulation but also fulfills the goal of fireproofing, and the comprehensive unit price of it is not expensive. The insulation materials in the domestic market have their own disadvantages, you'd better take the building demands into consideration, and use the materials that are within the acceptable range.
- Q: What are the main components of refractory cement?
- Refractory cement, also known as aluminate cement, can also be gray. Aluminate cement is often yellow or brown. Aluminate cement takes bauxite and limestone as raw materials, alumina content of about 50% as the clinker. And it is a hydraulic cementing material made by grinding. The main mineral of aluminate cement is mono calcium aluminate (CaO · Al2O3, abbreviated CA) and other aluminates, and a small amount of dicalcium silicate (2CaO · SiO2), etc.
- Q: What are the classifications of refractory? Which category does steel ladle castable belong to?
- In addition, it can be divided into refractory, shapeless refractory material. And it can also be divided into acidic refractory, basic refractory and neutral refractory. If you want to know more, you can ask thme. In fact, every company has different refractory clasifications. There are more clasifications in Huaheng.
- Q: What are refractory materials?
- Refractories can be divided to two categories based on the shape and three categories according to the chemical nature of acidity, neutralily and alkalinity. Alkaline refractory materials are magnesia-carbon brick, magnesia chrome brick, calcium magnesium brick and magnesia-chrome bricks. Neutural refractory mateial are high alumina brick, corundum brick and clay brick. Case-hardened refractory materials are castable, ramming mass, gunning mix, coated mix, dry vibration material, etc.
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Raw Materials for Refractory - Fused Silica
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
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