China Supplier Supply Calcined Bauxite With Best Grade

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Product Description:

China Supplier Supply Calcined Bauxite With Best Grade

 

Introduction:

 

Bauxite is actually refers to the industry, in sanshui diaspore, soft diaspore monohydrate or hard diaspore monohydrate as the main mineral composition of ore.Its application field has two aspects of metal and nonmetal.
Bauxite is the best raw materials, production of aluminum is the main field of application of the dosage of more than 90% of the total world bauxite production.Non-metallic USES mainly bauxite as refractory materials, grinding materials, chemical products and high alumina cement raw material.Bauxite in non-metallic proportion is small, the amount of but it is very extensive use.For example: chemical aspects such as sulfate, aluminium trihydrate and products can be used in paper making, water purification, ceramic, and petroleum refining;Activated alumina in the chemical, oil refining, pharmaceutical industry as a catalyst, catalyst carrier and decoloring, dewatering, degassing, acid, drying and other physical adsorbent;R - Al2O3 production of aluminium chloride for dyes, rubber, pharmaceutical, oil and other organic synthesis application;Glass of 3% ~ 5% Al2O3 can improve the melting point, viscosity and strength;Grinding material advanced grinding, polishing powder is the main raw material;Refractory materials is indispensable furnace building materials industrial department.

 

Applications:

 

1) Abrasive: Producing ceramic grinning wheel, grinding stone, grinning block, sanding paper, abrasive sand cloth, sand belt, polish wax, abrasive paste, coating etc.

 

 

2) Refractory material: Mainly used for abrasion and high temperature resistant in steel metallurgy, various industrial stoves, electric furnace etc.

 

 

3) Sandblasting abrasive: Mainly used for various material work pieces to decontaminate, derusting, prevent corrosion, remove oxide skin, glass sandblasting etc.

 

 

4) Abrasion resistance ground: Mainly used for non-slip of airport and road, chemical factory board paving.

 

 

5) Precision casting: Investment casting techniques of stainless steel and aluminum casting in coating.

 

 

China Supplier Supply Calcined Bauxite With Best Grade

China Supplier Supply Calcined Bauxite With Best Grade

China Supplier Supply Calcined Bauxite With Best Grade


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Q:What is the new fireproofing standard of external wall thermal insulation materials?
The civil builduing with thermal insulation material for exterior wall in the scope of construction fire safety design and fire inspection should put the combustion performance of building thermal insulation material for exterior wall into the content of review and acceptance. The civil builduing with thermal insulation material for exterior wall beyond the prescribed scope of Article 13, Article 14 of "Fire Supervision and Management Regulations of Construction Project" (Ministry of Public Order No. 106) should all be included in the scope of checks. Before released the new standard, it should be strictly implemented the Article II of "Provisional Regulation of Civil Building External Thermal Insulation System and Exterior Wall Decoration Fire Prevention" (known through word [2009] No. 46), the civil builduing thermal insulation material for exterior wall uses level A combustion performance material. I hope my answers are helpful to you.
Q:how does the fire endurance of first rate fire resistant window?
Not less than 1.5 hours
Q:What are included in wall fireproofing material?
External wall thermal insulation materials are divided into A and B according to combustion level. Grade A is incombustible material, while grade B is combustible material. A few years ago, fires in CCTV building and Shenyang hotel resulted from grade B material. Currently grade A is usually used, and some are even cheaper than the grade B material. Grade A is roughly divided into insulation mortar, phenolic board, rock wool board, foam cement board, etc. Insulation mortar is quite good. It is easy and convenient to construct, has low cost, but the production is too simple and it is easy to fake.
Q:What are fire ratings of wall thermal insulation material?
Grade A material has no ignition and is material with thermal insulation effect, anti-combustion material. Currently it mainly refers to inorganic thermal insulation mortars of vitrified micro bead, hole-closed expanded perlite, rock wool,mineral wool,glass wool,cement base or gypsum base, inorganic thermal insulation mortars and self thermal insulation system of lightweight block. Grade B1 is nonflammable thermal insulation material, which is determined by fire endurance of this material. In addition, the division of the material of different parts is different! What is commonly seen, such as EPS / XPS insulation boards adding flame retardant through special treatment. Grade B2 is combustible thermal insulation materials, and what is commonly seen is EPS expanding polystyrene board and XPS extruded polystyrene board, that is, the general board. This material has low ignition point, and releases large amounts of harmful gases in the combustion process . Grade B3 is flammable insulation material. Thermal insulation material with polyphenyl foam as main material is commonly seen. Since this material is highly flammable, it has been eliminated external wall thermal insulation materials.
Q:How many types of fire-resistant material?
1. Acid fire-resistant material refers to one with more than 93% SiO2. It is featured by resistance to the corrosion of acidic slag ad high temperature and easy to react with alkaline molten slag. 2. Alkaline refractory material generally refers to one with magnesium oxide or magnesium oxide and calcium oxide as the main component. It has high refractoriness and strong resistance to basic slag. 3. Silicate aluminum refractory material refers to one with SiO2, Al2O3 as the main component. According to the content of Al2O, it can be divided into three categories: half siliceous (15-30% Al2O3), clay (Al2O3 30 ~ 48%), high aluminum (more than 48% of Al2O3). 4. Fused cast refractory material refers to shaped refractory products made by high temperature melting and casting.
Q:What kind of flexible fireproof material is really good?
Flexible waterproof materials mostly are asphalt, linoleum and other organic material, which is also called linoleum coiled material waterproof layer. it uses the linoleum, glass cloth fabric as tire layer coil, using all kinds of cementing material phase of asphalt and so on. Make coil bind on roof structure plate leveling layer to form waterproof layer. Flexible waterproof material has high tensile strength, big elongation and light quality, which is convenient to construct. But it has relatively strict operation technology can resistant penetration and aging resistance than rigid materials, aging. Its life is short. Refers to a kind of waterproof material form relative to the rigid waterproofing materials such as waterproof mortar and waterproof concrete. In the form of its and grassroots attached two categories, it includs waterproof coating and waterproofing materials. According to different paste position of waterproof material, it can be divided into outside waterproof waterproof (outsourcing) and inside waterproof (insourcing waterproof) two kinds. Waterproof coil material must be stuck in the grass-roots that have enough stiffness of the. Before pasting, you should apply leveling layer and waterproof layer should be added protective layer of the outside, and need to make the rotation of the flexible material, the processing of subsequent and head closing, in order to ensure the continuity of the waterproof layer and sealing. In addition, there are all kinds of waterproof material and moistureproof coating material.
Q:Is fireclay corrosive?
No. All of the refractory materials have stable chemical properties and their usability can be guaranteed under high temperatures.
Q:Current development status of qualitative refractory materials.
Q:Could you tell me the fire-resisting time of class B fire proof door?
The fire-resisting time of class B fire proof door is 1h and thickness of door can't be lower than 45mm.
Q:I wanna ask you, which level is b1 fireproof and thermal inuslation matertial ??
What you said is the pixel! Only that has b1b2. Level b1 is the fireproofing level b1, because the particle does not belong to the fireproofing material. Only can fire retardant. The wholesale of all kinds of thermal insulation material and construction need to look at the name.

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