Al2O3 70%-85% 1-3mm Rotary Kiln Calcined Bauxite for Refractory brick

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000 m.t./month

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Product Description:

Quick Details

Place of Origin:

Shandong, China (Mainland)

Shape:

Ball

Material:

bauxite ore

SiO2 Content (%):

25%

Al2O3 Content (%):

70-85%

MgO Content (%):

less

CaO Content (%):

less

Refractoriness (Degree):

Common (1580°< Refractoriness< 1770°)

CrO Content (%):

less

SiC Content (%):

less

Model Number:

SKB70,SKB75,SKB85

Brand Name:

cnbm

Density:

2.7-3.2 g/cm3

Al2O3:

70-85%

Fe2O3:

less than 2.5%

Moisture:

0.3-0.5%%

Packing:

big bags, plastic film and pallets,as request

Size:

0-1mm,1-3mm,3-5mm,etc

Usage:

refractory brick,refractory castable,refractory blocks,etc

Advantage:

High strength,good thermal shock resistance,etc

Refractoriness:

1550-1790℃

name:

bauxite





Packaging & Delivery

Packaging Details:big bags ,plastic film and pallets,,As requested
Delivery Detail:within 15 days after get your order

Al2O3 70%-85% 1-3mm Rotary Kiln Calcined Bauxite for Refractory brick

Company Profile

Our goal is to transform CNBM International into the global leading brand in building materials industry within 3 to 5 years through innovation and reform, by strengthening the overall management of supply chain, developing and cultivating both domestic and overseas market, improving the procedure and information system, enhancing the ability to organize resources and to provide value-added services under a professional team and a learning organization.

With the advantages in Cement, Composite Materials, New Building Materials and Engineering, we mainly concentrate on coal, steel and construction equipments and give priority to solar and wind energy development simultaneously utilizing our competitive position on traditional building materials to achieve sales revenue of RMB10 Billion in 2013.  

CNBM International is highly recognized by its business partners and clients all over the world and has obtained rapid development under the spirit of win-win. We will carry on the mutual beneficial, innovative and revolutionary trading structure as we did before, create value for our employees, share holders and clients and benefit the whole society in our future development.


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Q:What defect does fused cast refractories have ?
The impact on the quality of glass is mainly the defects that eroded down refractory materials mixed in the glass, thus being prodeced of grass products. Defects are mainly foreign body defects such as sand, knot and wave reinforcement.
Q:Manganese steel belongs to refractories
NO!
Q:Who knows what kind of material the fire-proof plate use, and is it good?
Personally speaking, fireproof clapboard is very good. It is also known as fire-proof plate or fire retardant board. Made by the pressing of a variety of incombustible materials after scientific deployment, it is good in fire retardation and can be fire resistant for over 3 hours. It is also non-toxic and non-detonating with high mechanical strength, water and oil resistance, and good chemical corrosion resistance.
Q:Is fireclay corrosive?
No. All of the refractory materials have stable chemical properties and their usability can be guaranteed under high temperatures.
Q:Procedures for producing common refractory materials?
The general procedures of producing refractory materials include calcination of raw materials, selection of raw material , crushing, grinding, screening, mixing, ageing mixture, molding, drying, burning and etc. At present, the refractory factory usually purchases the calcined clinker, so the calcination of raw material is no longer a consideration of common refractory plants.
Q:which kind of fire bulkhead is better?
General business fire endurance of two products are 3 hours. Organic fire bulkhead's main ingredient is organic material, which can be used in anti-corrosion and fireproofing cable tray. Inorganic fire bulkhead's main ingredient is inorganic material, which mianly play a role of fireproofing. It's main ingredient is inorganic material, so it can't be used in acidproof and alkali resistant projects. Of course, the price of same amount organic fire bulkhead in general is more expensive than the inorganic fire bulkhead.
Q:Does anyone know the difference between refractory and thermal insulation material?
The main difference between insulation bricks and refractory bricks are as follows: 1. Insulation effect The heat conductivity cofficient of insulation bricks is usually 0.2-0.4 (average temperature of 350 ± 25 ℃) w / mk while the heat conductivity coefficient of refractory bricks is 1.0 (average temperature of 350 ± 25 ℃) w / mk or more. Thus it can be seen that the insulation effect of insulation bricks is much better than that of refractory bricks. 2. Refractoriness The refractoriness of insulation bricks is generally below 1,400 degrees centigrade while the refractoriness of refractory bricks is above 1,400 degrees centigrade. 3. Density Insulation bricks are generally light-weight insulation material, and the density is generally 0.8-1.0g / cm3. But the density of refractory bricks is above 2.0g / cm3.
Q:what grades are fire resistance of fireproofing glass divided into?
Fireproofing glass is a kind of special glass which can keep its integrity and thermal insulation performance in regular insulating refractory trials. and it can be divided into three classes according to its fire resistance: Class A, it's a kind of fireproofing glass that can satisfy the requirements of refractory integrity, refractory and thermal insulation at the same time. This kind of glass has the properiyies of transmittance, fireproofing ( smoke insulation, fireproofing, and keeping out thermal radiation), sound insulation, shock resistance, and it's suitable for steel and wooden fire door of building decoration, windows, varnishing, partition walldaylighting roof,ceiling screen,perspective floor and other construction components demading for transparency and fireproofing. Class B, it's a kind of fireproofing glass that can satisfy the requirements of refractory integrity, refractory and thermal insulation at the same time. Such kind of fireproofing glasses mostly are composite fireproofing glasses and has characteristics of transmittance,fireproofing and smoke insulation. Class C, it's a kind of fireproofing glass that only satisfies the requirements of refractory integrity. This kind of glass has characteristics of transmittance, fireproofing, smoke insulation and high strength,etc. It's suitable for fireproofing glass partition wall, fire Windows, outside curtain wall and other places without insulation requirements.
Q:What refractories can withstand high temperature above 2100 degrees?
It depends on refractoriness of refractory materials. The three refractory bricks above is 300 degrees higher than quartz sand in refractoriness. Magnesia brick: Cast corundum brick with greater than 2000 degrees refractoriness should be enough for you to use. But products like quartz sand merely keeps 1600 to 1700 in refractoriness generally. As you described that refractoriness is greater than 1990 degrees, it is feasible to use hearth made by mixing of quartz sand and refractory cement, which can work for some time at 200 degrees. It is also ok to use dolomite brick whose refractoriness is greater than 2000 degrees.
Q:The manufacturing technique of refractory material
Melt blowing method is to melt the ingredients first, In addition, hiphotos, organic impurities, to be mixed, add sulfite pulp waste liquid into magnesia billet , ensure the accuracy of the product dimension. The products are mainly used for light refractory. then dry and fire with sintering to reduce the firing shrinkage of products, making it disperse into fiber or hollow sphere. The porpose of pre sintering raw material is to Sintering method is pre-sintering part of the raw material into clinker. such as adding binding clay into aluminum silicate blank

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