$High Purity Fused Silica Raw Materials for Refractory System 1$
$High Purity Fused Silica Raw Materials for Refractory System 2$
$High Purity Fused Silica Raw Materials for Refractory System 3$
$High Purity Fused Silica Raw Materials for Refractory System 4$

$High Purity Fused Silica Raw Materials for Refractory$

$High Purity Fused Silica Raw Materials for Refractory System 1$

$High Purity Fused Silica Raw Materials for Refractory System 2$

$High Purity Fused Silica Raw Materials for Refractory System 3$

$High Purity Fused Silica Raw Materials for Refractory System 4$

High Purity Fused Silica Raw Materials for Refractory

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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 grade classifications of the external walls fireproofing material?: 1. The thermal insulation material of level A combustion performance: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3, combustion performance is level B2 insulation material: Molding polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. See the 2009 edition construction technical measures 4.3.6 Level A insulation material is only for fireproofing, but its thermal insulation performance is not better than organic XPS \\ EPS and other materials.

Q: Can anyone say something about the curtain wall fire-proof material key sealing point?: Keypoints; 1, curtain wall design must consider the safety requirements, one of which is fire protection design. 2, Generally, fire protection planning between curtain walls should use the method of setting fireproof isolation layer. 3, Two layers of fireproof isolation layer whose thickness should not be less than 100mm respectively on the top edge and lower edge of the material parts of the house. 4, the fireproof isolation layer commonly uses 1.5mm thick galvanized steel sheet as supporting plate, using for shelving fireproof sheet. The 100mm thick cavity between the layers is filled with mineral wool non-combustible materials tightly covered with tinfoil on the surfaces. 5, protective isolation layer should try to reconcile curtain wall beam level and finish floor level, so as to fill non-combustible material and to avoid that a piece of glass acrosses two fire?compartments. 6, the beam should be inside 100mm thick fireproof isolation layer to protect the beam and the upper curtain wall plate. 7, when there are open fire function areas like large-scale hotel or restaurant kitchen inside the curtain walls, curtain wall glass in these parts should consider using cesium potassium fireproof glass to improve the fireproof rating in the region. 8, Fireproof setting in the around areas of curtain wall can use the same method of the above fireproof setting between layers. The joint parts of fireproof isolaton layer and main part as well as curtain wall should use fireproof sealant to seal.

Q: Does hardware construction materials contain refractory?: refractory includes one kind of building materials. It is a special material and not commonly used.

Q: Refractory factory grinding brick dust harmful to the body?: The effect is very large and belongs to lung disease.

Q: How is refractory material made?: It is made from yellow mud and water.

Q: Who knows about the fire endurance of grade C fire doors?: The fire endurance of grade C fire doors is no less than 0.5 hours. As the key role of family fireproofing, fire doors is particularly important. It can be classified according to the fire endurance and thermal insulation performance: The fire endurance of grade A fire doors is not less than 1.5 hours; that of grade B fire doors is not less than 1.0 hours; and that of grade C fire doors is not less than 0.5 hours. We can choose in accordance with different needs, but commonly used fire doors are grade A and B fire doors now.

Q: Can you tell me the classification of fireproof sealing material.: Fire blocking is to use fire blocking material as partition between cable threading hole and electric hole. Its role is to prevent the cable itself catacausis or outside naked light make the fire spread to achieve the purpose of protecting the safety of personnel and equipment. The principle of fire-proof sealing is plugging material acting as bloating heat absorption and heat insulation. Fireproof sealing material in current market include: fire-proof sealing plate, foam sealing materials, flame retardant module, flexible organic plugging material, inorganic fire sealant, plugging and fire package, etc. The wide usage of fire-proof sealing material in building construction can ensure the fire flame and high temperature flue gas not to extend another fire partition tendril.

Q: What are the new types of refractories? What are the characteristics? Their applications and developments?: A new type of refractory materials are: A12O3-TiO2-SiO2 refractories, MgO-A12O3-TiO2 refractories, MgO-CaO-TiO2 refractories, MgO-SiC-C refractories, nanotechnology MgO-C brick, MgO-AL2O3-AIN refractories, MgO-La2O3 refractories etc..

Q: Can anyone tell me what is a high alumina refractory?: Refractories refer to a class of inorganic non-metallic materials whose refractoriness are no less than 1580 ℃. Refractoriness is the Celsius temperature when cone-shaped samples can resist high temperature without softening and melting down in the absence of a load. But it is not accurate to define refractory merely by judging that whether the refractoriness is no less than 1580 ℃. Currently, the materials whose physical and chemical properties allow them to be used in high temperature environments are called refractories. Refractory materials are widely used in metallurgy, chemical industry, petroleum, machinery manufacturing, power and so on, among which the metallurgical industry is the largest demander in this regard, accounting for 50% to 60% of total output. Hope it will help you out!