High Temperature Industry Furnace Refractory Fire Brick with Al2O3 Content of 45%-85%

 High aluminum brick is three oxide two aluminum (Al2O3) content is higher than 48% of the aluminum silicate refractory products.If the content of Al2O3 is higher than 90%, it is called corundum brick.Due to different resources, national standards are not completely consistent.For example, the lower limit of Al2O3 content for high alumina refractories in European countries is 42%.In China, according to the content of Al2O3 in high aluminum brick is usually divided into three classes :Ⅰ -Al2O3 content > 75%;Ⅱ et al --- the content of Al2O3 is 60 ~ 75%;Ⅲ et al ---the content of Al2O3 is 48 ~ 60%.A neutral refractory with an alumina content of more than 48%.It is formed and calcined from alumina or other raw materials with high alumina content.High thermal stability, refractoriness above 1770℃.Good slag resistance.Used for lining of electric steel-making furnace, glass furnace, cement rotary furnace, etc. 

Production process: the production process of high-alumina bricks and multi-clinker clay bricks is similar, the difference lies in the higher proportion of clinker in the ingredients, up to 90 ~ 95%, clinker before crushing needs to be sorted and screened to remove iron, sintering temperature is higher, such as Ⅰ, high alumina bricks with tunnel kiln firing is generally 1500 ~ 1600℃.
Application: It is mainly used for lining of blast furnace, hot blast furnace, top of electric furnace, blast furnace, reflection furnace and rotary kiln.In addition, high alumina brick is also widely used as open hearse regenerative lattice brick, plug head for gating system, nozzle brick, etc.But the price of high aluminum brick should be higher than clay brick, so the place that can satisfy the requirement with clay brick need not use high aluminum brick.

Detail the classification of high aluminum brick

1, ordinary high aluminum brick
The main mineral composition of the refractory brick is quartz, corundum and glass phase. With the increase of the content of Al2O3 in the product, mullite and corundum also increase, the glass phase will decrease accordingly, and the refractory and high temperature performance of the product will improve accordingly.Common high aluminum brick has a series of better fire resistance than clay brick, is a good application effect, widely used material, widely used in a variety of thermal kiln.Compared with clay brick, it can effectively improve the service life of kiln.
2, high charge soft high aluminum brick
Compared with ordinary high-alumina bricks, the difference between high-alumina bricks and high-alumina bricks is the matrix part and the binder part. In the matrix part, besides adding three-stone concentrate, according to the theoretical composition that the chemical composition after firing is close to mullite, the high-alumina materials, such as corundum powder and high-alumina corundum powder, are reasonably introduced.Binding agent selection of high quality ball clay, according to the variety of different clay composite binder, or mullite binder.By the above method, the load softening temperature of high aluminum brick can be increased by about 50~70℃.

3. Low creep high aluminum brick
The creep resistance of high alumina brick is improved by using the so-called unequilibrium reaction.Namely according to the use of the kiln temperature condition, three stone mineral is added in the matrix, activated alumina, etc., the composition of the matrix near or entirely of mullite, because the matrix of mullite petrochemical, will improve the material of mullite content and reduce, glass phase and mullite excellent mechanical and thermal properties is conducive to improving the performance of high temperature material.Controlling Al2O3/SiO2 is the key to complete mullitization of the matrix.Low creep high alumina brick is widely used in hot blast furnace, blast furnace and other thermal furnace.
4, phosphate combined with high aluminum brick
Phosphate-bonded high aluminum brick is a kind of chemical bonded refractory brick which is made of dense super grade or first grade high bauxite clinker as the main raw material, phosphate solution or aluminum phosphate solution as the binder, after being pressed by semi-dry method and heat treated at 400~600℃.It belongs to the non-fired brick, in order to avoid the product contraction in the process of use, the general need to introduce heating expansion raw materials, such as blue pinstone, silica and so on.Compared with the ceramic combination fired high aluminum brick, its anti-peeling performance is better, but its load softening temperature is low, anti-erosion performance is poor, so lag to add a small amount of fused corundum, mullite, etc., to strengthen the matrix.Phosphate-bonded high alumina brick is widely used in cement rotary kiln, electric furnace top and other furnace parts.
5, micro expansion high aluminum brick
The main brick is high bauxite as the main stock material, adding three stone concentrate, in accordance with the high aluminum brick production process.To make a moderate amount of inflation in the process of using high alumina brick, the key is to choose a good three stone concentrate and its particle size, good control of sintering temperature, make the choice of three stone mineral of mullite petrochemical, part three residual stone mineral, the remaining three stone mineral in use process further mullite petrochemical (primary or secondary mullite petrochemical), along with the volume expansion.The choice of three stone minerals to composite materials as well.Because the decomposition temperature of the three stone minerals is different, the expansion of mullite is also different.Using this characteristic, the high alumina brick has the corresponding expansion effect due to the different working temperature, squeezes the brick seam, improves the overall compactness of the lining body, and thus enhances the brick's anti-slag penetration ability.
The above is the classification of high aluminum brick, if you are interested in refractory materials, you can search on Baidu "find refractory material network" for a detailed browse, more wonderful articles and so on you see, we aim to provide more buyers and sellers reasonable and fair trading platform, so that refractory business is no longer difficult to do.

Packaging

1. 1 ton bags in container, 25 MT/20'FCL.
2. 25kg bags in container, 25 MT/20'FCL
3. 25kg bags in ton bags, then in container, 25 MT/20'FCL
4. as the customer' request

Packaging of SK37 High Alumina Refractory Brick

1.on wooden pallets with plastic cover: wooden pallet size :930*930 or 1000*1000mm,
2.Load weight of each pallet: 1.5-2.0 tons,

Shipping of SK37 High Alumina Refractory Brick

1.Our packaging is as per customer’s request
2.Normal goods delivered by sea transport
3.Sample shipping by express
4.We will shipping and delivery goods timely, quality and quantity guaranteed, and also in accordance with the contract and customer's requirement completely.

Delivery:

15-30 days working day for large quantity. The shipment we will arrange as soon as possible. Of course, if it is a custom products, the shipping time will delay.
Sample:

Usually by EMS, DHL, UPS, TNT, FedEx. Anyway you like. Bulk order: Usually by sea.

Payment:

It can be through T/T, L/C at sight. The specific terms determined according to the quantity of the goods, etc.
Your inquiry related to our product & price will be replied within 24 hours.
Export:
Our products have been exported to many countries: Australia, Chile, USA, Russia, UK, Indonesia, etc., good quality have be approved by our clients.

1.Timely response, 

Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions. 

2.Free sample of dry ramming mass

Sample and trial order are accepted for the quality evaluation

3.Strict quality control

Arrange production on time and control quality strictly. 

4.Shorter delivery time.

Book the earliest vessel or plane to guarantee the delivery time. 

5.Professional Services

Provide all the detailed news and pictures from order to delivery;offer relative export documents and original certificate if needed;warm and considerable after-sale service. 

Henan hongtai kiln refractory co., LTD. : "quality first, reputation first, customer first: it is our aim."Scientific management, strong technical force, perfect testing means, advanced technological equipment and stable product quality are the guarantee of quality service.Henan hongtai kiln refractories co., LTD sincerely hopes to cooperate with you hand in hand and in good faith.
Henan hongtai kiln refractory co., LTD. Main products are high alumina brick, clay brick, fused zirconium corundum brick, fireproof ball lightweight insulation brick, wear-resistant pouring material, corundum pouring material, low cement high strength pouring material, impermeable material, self-flowing material, plastic material, and various types of refractory materials.For different industries, the cement industry with anti-flaking high-alumina bricks, alkali resistant bricks, phosphate bricks;Boiler industry USES all kinds of brand wear-resisting brick, corundum brick, mullite brick and other finalizing materials.The company insists on "product quality is the life, enterprise integrity is the foundation", in the fierce market competition, won many users' trust and praise.The products are sold all over the country, as far as Vietnam, India, Korea, Pakistan, kazakhstan, other southeast Asian countries and regions.

Customer visit :