Raw Materials for Refractory - Fused Silica Powder 270mesh
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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:What are fire resistant level standards of class A fire resistant door?
- Executive standard: GB12955-2008 Fire Door. Fire resistant level: Class A: 1.5h, B:1.0 h, C: 0.5 h. Thickness of door leaf: Class A: 50mm, B 45mm, C 40mm. Doorframe Specification: Class A, B, C. Door leaf form: Single open, double open, single open with glass, double open with glass, single open with glass and bright, double open with glass and bright, with a bright picture, Zimu glass Zimu glass with light. Doorframe Specification: Class A, B, Door leaf form: Single open, double open, single open with glass, double open with glass, single open with glass and brightness, double open with glass and brightness, double open with a lager door leaf and a smaller door leaf, double open with a lager door leaf and a smaller door leaf with glass, double open with a lager door leaf and a smaller door leaf with glass and brightness. Standard sizes: In line with GB5824-86 Hole Size of Building Doors and Windows."
- Q:Refractory materials are needed for casting metallurgy.
- Refractory material used in foundry work is that refractories for cupola furnace? Cupola is a high temperature furnace which is used for melting molten iron, and refractory material adopted is mainly low iron high grade clay brick and clay lightweight insulation bricks, etc.foundry ingot refractory material is pearl sand (also known as pearl jewelry sand, fused ceramic, ceramic sand) it is made of high quality bauxite material by arc melting furnace.
- Q:For refractory, why is it necessary to store the first mixing materials for some time under proper moisture and temperature?
- It is mainly to remove gas form chemical reactions in the pug, give full play to plasticity and binding properties of combined, and store unburned?brick whose cememting agent is phosphoric?acid or aluminium?phosphate for some time under proper moisture and temperature. For example, to avoid the formed bricks in the initial stage of drying and firing form cracking due to hydration of calcium oxide. Mixing materials is to store the first mixing materials for some time under proper moisture and temperature in order to improve the evenness and moldability of pud, such as making the distribution of combined clay and water more even. The length of storing chiefly depends on the process requirements and the characteristics of blanks. For the producing pug of high temperature kiln furnitures, the storing time is longer. The function of storing mxing materials varies with different natures of blanks. For honeycomb ceramics, it is to fully digest calcium oxide in blanks. For storing magnesia brick blanks containing much calcium oxide, it should be stored for some time in proper humidity and temperature.
- Q:Fire insulation and fireproof insulation board materials What is the difference in performance?
- Fireproof Materials prevents burning through insulating while others by chemical reactions. The overall heat conductivity coefficient of Insulation materials are generally lowered by thermal conductivity of the material itself and the structure of it. Inorganic active insulation material uses ordinary cement, insulation stone, calcium powder, Platycodon grandiflorum as the main raw material.
- Q:How to calculate the thickness of choosing refractory? Such as steel ladle should choose what kind of refractory and using what thicknes?
- The relative production is lower and material cost is higher, the lining of the refractory is thicker: 1, determine the weight of the refractory material according to the main structure of the bearing capacity, to prevent damage to equipment, fire-proof material damage after the surplus size and thickness of the thermal conductivity of refractory materials, the smaller the effective volume, production output, the cost of materials) to consider the selection of refractory material thickness. 3 from the point of usage (usage cycle, relative usage cycle is longer, because under the condition of invariable in the device's overall dimensions of the refractory lining thickness to determine several basic principles, according to the volume of the weight computation of refractories and refractory thickness, these items must be fully consider the pros and cons before decided. 2 according to maximum temperature that shell can withstand.
- Q:Does hardware construction materials contain refractory?
- refractory includes one kind of building materials. It is a special material and not commonly used.
- Q:What is the function of refractory material?
- Refractory is a basic material in the field of high temperature technology. Generally, the refractory is used as structural material or lining to resist high temperature in various thermal equipment and high temperature container. In the iron and steel industry and metallurgy industry, coke ovens are mainly composed of refractory materials. Various refractories that meet the requirements are essential in blast furnace for ironmaking, hot stove, all kinds of steel-making furnaces, soaking furnace and heating furnace. Not only the die casting for molten steel needs lots of refractory materials, but also the continuous casting needs some high-quality refractory materials. Without high-quality refractory materials, external refining is also not impossible to achieve. Statistics show that the steel industry is the sector that needs the most refractory. Pyrometallurgy and thermal processing of ferrous metal also needs refractories. All high-temperature furnaces or lining in construction materials industry or other high temperature industries that produce silicate products such as glass industry, cement industry, and ceramics industry must be constructed with refractory materials. All kinds of roasting funaces, sintering funaces, heating furnaces, boilers, flues, chimneys and protective layers in chemical, power and machinery manufacturing industry need refractories. In short, when some kind of structures, devices, equipments or vessels are used under high temperature, they all should utilize refractory to resist the high temperature because those materials will deform, soften and fuse or will be eroded, scoured or broken due to the physical, chemical, mechanical effects, which may stop the operation, affect the production, contaminate processed objects and impact the quality of products.
- Q:What is the main material of fireproof wooden door?
- Fireproof door is an important part of fire-fighting apparatus and society fire prevention, so the quality and use of fireproof door is the key to the success of the fire prevention. Some customers don't know clearly that whether the fireproof door should install a door closer. Today I specially read the explanation of relevant state departments for fireproof door, in the explanation in 5.3.3, fireproof door should be installed fireproof door closer or set, so that normally open fireproof door can automatically close close-door device of the door leaf (except for the use of special parts, such as pipe shaft doors, etc.) in the event of a fire. In other words, except for some special parts which don't need to be installed door?closer, such as pipe shaft doors, other parts are required to install fireproof door closer.
- Q:Where is the sizing nozzle for refractories? Just enter the line, master into!
- Refractories in this industry, Luoyang Hua Heng is the first to bear, and their services are thoughtful, and the quality is still very good!Wish you success！
- Q:What level is the rock wool board fireproofing material ?
- The most important feature of the rock wool board is fireproofing, which is a non-combustible material and absolute A-level! It has the specialized external wall rock wool board, which can be found online.
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Raw Materials for Refractory - Fused Silica Powder 270mesh
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
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OKorder Financial Service
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