Raw Materials for Refractory:BFA Brown Fused Alumina Fused Alumina Hot Selling
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 3000 m.t./month
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BFA Brown Fused Alumina Fused Alumina Hot Selling
Specifications
calcined Brown corundum
1) High Al2O3 Content: 95%min
2) Professional manufacture
3) Hot sale overseas
Calcined Brown corundum
1) High AL2O3 content: 95%min
2) Professional manufacturer
3) Prompt delivery
Product Description
Our brown fused alumina is tilting furnace type and crushed by Barmac.
we have own power station and bauxite bases, and adopt special cooling crystallization process, greatly improved its grinding precision and efficiency, applicable to make high-grade bond abrasives.
Main feature:
1). Low expansion coefficient
2). Good Hydrophily
3). High compression strength
4). Abrasives made from it is in blue color, no reticulate crack
Chemical index:
Al2O3 95.3%-96.5%
Fe2O3<0.3%< span="">
SiO2 ≤1.0%
TiO2 >2.0%
CaO ≤0.45%
Physical index:
True Specific gravity 3.97g/cm3
Cleanliness > 97.5%
Application of Brown Fused Alumina for Refractory Use, Sandblasting, Abrasives:
Resin ceramic abrasive, sand blasting, grinding and polishing, and is widely used in anti-wear runways, high-temperature coating matrix and metallurgy, chemical industry, and other high-level furnace refractories.
Pictures:
If you’ve any enquiries, please don’t hesitate to let us know. ^_^
- Q: How is the division of the fire resistant level of the rock wool board?
- It's like this: China's national standard GB8624-97 divides the combustion performance of building materials into the following grades. Level A: non-flammable building materials. Level B1: flame-retardant building materials. Level B2: combustible?building?materials. Level B3 flammable building materials. section II Combustion performance and fire endurance of building components. First, The combustion performance of buildings of building components. The building is composed of components, such as foundation, walls, lubrication columns, beams, plates, roofs and stairs, ect. Building components are constituted by the building materials, whose combustion performance depends on the combustion properties of the used construction materials. Section One Combustion performance of building components. The building components are divided into three categories according to their combustion properties. First, non-combustible component: the component made by incombustible?materials. The incombustible?material refers to that when meeting the Oxygen in the air, it will not burn.
- Q: The mechanism and function of antioxidants in carbon containing composite refractories are briefly described.
- 3, the selection principle of antioxidant and its thermodynamic and kinetic mechanism31 selection principles of antioxidants:(1) according to the thermodynamic data and the conditions of use, the possible condensed phase and the vapor pressure of each gas phase are determined;(2) compare the size of each coacervation and oxygen affinity, and the possibility of reaction with CO.(3) the influence of various reactions on the microstructure of brick was analyzed.The thermodynamic and kinetic mechanism of 3.2 antioxidantsFrom a thermodynamic point of view, at the operating temperature, the additives or additives that react with carbon react with oxygen more closely than carbon and oxygen, giving priority to carbon oxidation, thus protecting carbon;From the analysis of dynamics point of view: the compound additive with oxygen and carbon monoxide reaction changed the microstructure of carbon composite refractory materials, such as increasing the density, blocked pores, hinder the diffusion of oxygen and reaction products.
- Q: Why the refractories should be waterproof and wetproof
- It is necessary to like magnesium carbon, waterproof and wetproof is more important. There is a variety of refractory materials, in general, basic is defective, and wherein the binder and additives water will lose their effect, the relationship is not very high aluminum large amount of water determines how much of the performance after the hydration will affect the strength and high temperature performance ;; hydration & quot, just need a little package like magnesium and calcium-based product itself readily react with water to calcium oxide, magnesium, chromium is not all the material goods have waterproof ordinary bulk materials need to add water before use
- Q: which kind of refractory is used in golden smelting furnace? How about his using temperature
- generally the price of the quartz sand refractory material is higher and the temperature can meet the requirement of 2000 degree.
- Q: Does the refractory material used in steelmaking all refer to refractory brick?
- Besides refractory brick, it also refers to unshaped refractories like fire clay and castables.
- Q: Which kind of furnace hearth refractory is better?
- Coal is acidic medium, so the matched material should be acidic refractories oriented, like silica?bricks. For example, the coking coke oven and carbon furnace made of carbon are in reducing atmosphere, so they use silica bricks which have low price and good high-temperature indicators. If the part has special requirements, you can then consider other refractory on request.
- Q: What is refractory cement?
- Refractory cement is also known as aluminate?cement. Aluminate?cement emplys bauxite and limestone as the raw materials, calcium?aluminate obtained by calcining as the main component, being made into clinker containing 50% of aluminium oxide and finally being made into hydraulic cementing material by grinding. Aluminate cement is often yellow or brown, sometimes gray. Aluminate cements' major mineral are monocalcium aluminate (CaO · Al2O3, abbreviated CA) and other aluminate as well as a small amount of dicalcium silicate (2CaO · SiO2), etc.
- Q: What are first rate fire resistant window materials?
- Natural environmental protection, non-poisoned, non-peculiar smell, non-radioactive; non-combustible, fireproofing, moisture-proof, corrosion-resistant; easy construction, lightweight, high strength, www. jsxsmy.
- Q: Development trend of refractory industry
- In recent years, great changes have taken place in the world refractory industry. On the one hand, because of the improvement of technology and equipment and refractories own industrial users of technology progress, and refractory material consumption decreased year by year; in the past 20 years, the average annual consumption per ton of steel refractories decreased about 5 kg. The forecast for the next 5 years the average annual consumption per ton of refractory materials will drop to 0.5-1.0 kg range. The trend of globalization is obvious, and the competition is so fierce that the varieties of refractory materials are diversified, and the performance and quality are obviously improved. The service consciousness and ability of the refractory enterprises are strengthened for the users. Many lack of competitiveness, no modern enterprise management awareness of SMEs have been bankrupt, mergers and acquisitions surging. The production of refractories in developed countries is much higher than the cost of developing countries at the same time, due to more stringent environmental requirements, forcing them to produce only export high value-added products or technology, and bulk products, labor-intensive production shifted to developing countries. Because of its unique advantages of raw materials and labor cost advantages, there is no doubt that China will have more opportunities
- Q: What is the quote of fireproof and soundproof materials used in KTV?
- 1. fire retardant, sound absorbing sheet,eggs,pyramid,sound-absorbing material, piano room, studio, KTV, with glue on the rear, 15 Yuan 2. bar, KTV, fireproof sound insulation cotton, sound-absorbing materials, studio, eggs, drum practice room, sound-absorbing and sound insulation materials, pyramid, 25 Yuan 3. fireproof wood excelsior absorbent, sound absorbing board, wall ceiling decoration materials, materials, theater, KTV, wood color fiberboard, 30 Yuan.
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Raw Materials for Refractory:BFA Brown Fused Alumina Fused Alumina Hot Selling
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 3000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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