Tabular Alumina

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
100MT m.t.
Supply Capability:
20000MT m.t./month

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Product Description:

Quick Details of Tabular Alumina:

Super high temperature shaft kiln sintered plate corundum that takes alumina as raw material is molded by milling and drying;

on condition of quick warming and cooling in super high temperature shaft kiln, it becomes lots of tight column crystal and

the dimension of crystal is among 30-200um; there are lots of alumina corundum that has high purity with lots of closed micro-holes.

 

Specification of Tabular Alumina:

Item

SYA-99

Grain size (mm)

Standard 

Typical

Apparent porosity (%)

≥3.00

≤5.0

3.5

1.00~3.00

≤7.0

5.5

Volume density

 (g/cm3)

≥3.00

≥3.50

3.53

1.00~3.00

≥3.45

3.48

Al2O3 (%)

≥99.00

99.4

NaO2 (%)

≤0.40

0.30

 

Application of Tabular Alumina:

It is one kind of excellent insulation raw materials for fire-proof, porcelain and electric instruments;

it is also excellent material for milling tool and polishing milling.

 

Advantages:

 1.We can control the quality and cost due to our strong capacity and cash flow in China .

2. We have strict and mature quality and logistics control on the cargo .

3.As a governmental company, we are reliable.

 tabular alumina

 tabular alumina

 

 

 

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Q:What is the fire endurance of ceramsite concrete blocks?
The heat conductivity coefficient of grade 800 hollow building blocks in ceramsite concrete is 0.23 and fire endurance is 4h. Ceramsite concrete has strong construction adaptability. It can not only compound concrete material with different unit weight and strength(It changes with the structure of thermal insulation or bearing structure) according to the different purposes and functions of buildings, but also is easy to construct. It is suitable for industrial production of a variety of construction methods. It can not only make all types of components(board, block, girder, column, etc) by using production process, but also can use mechanization construction of cast-in-place. The strong adaptability of construction of ceramsite concrete is not comparable to any other lightweight building materials(such as air-entrapping, etc.).
Q:hat kind of fire retardant materials are there
At present, there are mainly organic and inorganic flame retardant materials, halogen and non halogen. Organic flame retardant materials are represented by bromine, nitrogen and phosphorus and its compounds; Inorganic fire retardant materials include antimonous oxide, magnesium hydroxide, aluminum hydroxide, and silicon. Generally speaking, organic flame retardant materials have a good affinity, and can be added in the plastics. Brominated flame retardant agent occupy the absolute advantage among organic flame retardant system, though it’s “controversial” in terms of environmental protection, it has been difficult to have other flame retardant system replaced.
Q:I know which material is the fire resistance rolling shutter door
Inorganic fiber cloth as curtain side replace steel fire shutter curtain of steel plate, the thickness of the inorganic fiber cloth is much thinner than the steel curtain plate and the density is very small, so the volume of the same area of ​​the inorganic fiber is super fire shutter the same area of ​​steel fire shutter half, and weighs only one more out of the same area a few steel fire shutter, however, the inorganic fiber super fire shutter fire but has a very good insulation properties. I hope my answers are helpful to you.
Q:What refractories are used in various parts of the blast furnace.
Blast furnace from top to bottom has the throat, hearth staves, waist, bosh, hearth and furnace bottom. the specific structure is as follows: The throat is the first to be affected by the impact and abrasion, generally use high-density alumina bricks. the upper and central portion of temperature furnace is only 400 ~ 800 ℃, the area with high alumina bricks and silicate bricks. The lower part of furnace is subject to erosion and dust erosion alkali metal vapor due to high temperatures, it is required in such case to use high quality clay brick,high alumina brick,carborundum brick,corundum brick that is slag resistance and alkali resistance, temperature resustant and wearproof. Furnace bosh temperature reached 1400 ~ 1600 ℃, serverly eroded by slag,vapor, flush. so we use carborundum brick and reaction-bonded silicon carbide brick. Bosh temperature reaching1600 ~ 1650 ℃, using alumina brick, corundum brick or silicon carbide brick. the temperature of Hearth near the upper portion of the outlet zone at 1700 ~ 2000 ℃, use of silicate bricks and corundum castable graphite filler, silicon carbide bricks. In 1450 Silly twitch bottom temperature sealing die of hunger slander bet phoenix astringent preserved Grade ~ 1500 ℃, use of graphite bricks and microporous carbon bricks, now use more corundum brick, corundum mullite brick and synthetic mullite brick. x26lt;P class x3d "share-btn"x26gt;
Q:What materials are needed to make the amorphous refractory bricks?
The amorphous refractory brick is composed of a certain proportion of aggregate and powder, a binder and an additive, and it can be directly used or used after allocation with some liquids. The amorphous refractory brick is a new type of refractory material without calcination, its refractoriness is below 1580℃.There is a wide variety of refractory materials. According to the production method and usage thereof can be divided into concrete, castable, plastic refractory, ramming refractory, gunning mix, sling refractory, coating material, dry ramming mix , fire clay, and all kinds of repairing mass(Asphalt combined with large surface charge compensation, Martin also belongs to the shape of the amorphous refractory material).
Q:What kind of refractory materials can withstand 1500℃ when processing briquette stove core and meanwhile cost less?
The main material is quartz sand and it is the cheapest, and can resist 1500℃ without any difficulty.
Q:Who knows about the criteria of fireproof and thermal insulation materials?
Seven levels are divided according to "The classification of combustion performance of building materials and products", namely, A1, A2, B, C, D, E, F. It mainly refers to the combustion performance of materials. You can check on this standard for the specific dividing evidence. There are detail charts which mainly describe that whether there is drip or not, the ignition time, continuous burning time and so on.
Q:Why do magnesium oxide refractory bricks can be made into refractories?
Nature: It is loose white powder and tasteless. When exposed to the air, it is easy to absorb moisture and carbon dioxide. It is dissolved in acid and ammonium salt and insoluble in water and ethanol, with the melting point of 2800 and the boiling point of 3600. The magnesium oxide has high fire-resistance insulation properties, with high melting point . It can be said to be non-combustible materials.
Q:How to divided the grade of external wall thermal insulation materials?
1, According to China's national standard GB8624-97, combustion performance of building materials will be divided into the following grade level A: Incombustible building material: It is a kind of material that almost does not occur burning. Level B1: Nonflammable building material: Non-flame material has good flame resistance. It is difficult to fire under the condition of open fire in the air or high temperature, and it is not easy to quickly spread, and when the combustion source is removed, the combustion will stop immediately. Level B2: Combustible building materials: Flame material has a good flame resistance. In case of fire in the air or at high temperature, it will immediately burst into flames, and easily lead to the spread of fire, such as wooden column, timber roof truss, timber beam and wooden stairs. Level B3: Combustible building materials: It has no any flame resisting effects, and is easy to burn, so the fire risk is high. 2, The external wall thermal insulation materials is divided by fire rating 1) level A combustion performance thermal insulation material 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: Molded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. I hope my amswers are helpful to you
Q:What kind of refractory materials should be used for the intermediate frequency furnace to smelt manganese?
I am not quite clear. But you should take two aspects into consideration, namely, no pollution and strong durability.
We has been adhering to scientific and technological innovation as the company development ideas, establishing the export-oriented development strategy and has close technical cooperation with scientific research institutions.We supply many kinds of calcined bauxite.

1. Manufacturer Overview

Location Tianjin,China
Year Established 2006
Annual Output Value Below US$1 Million
Main Markets Mid East;Western Europe;Japan;North America
Company Certifications The Authentication certificate of Quality Management system

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin
Export Percentage 61% - 70%
No.of Employees in Trade Department 50 People
Language Spoken: English;Chinese
b)Factory Information  
Factory Size: Above 300,00 square meters
No. of Production Lines Above 5
Contract Manufacturing Design Service Offered
Product Price Range Average