wanhaorefractory

Wanhao   Refractory   is a manufacturer who is specialized in designing various kinds of furnace and making refractories for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace,   refractory products   , fire brick, refractory nozzle, etc. Fused zirconia corundum brick, also known as AZS fused zirconia corundum brick abbreviation is AZS. It is based on the chemical composition of three Al2O3-Zr02-Sio2 ternary phase diagram. According to their order of content, Al2O3 takes A, Zr02 takes Z, Sio2 takes S. The national standards adopted this abbreviation, for example, number 33 casting zirconia corundum brick, abbreviated as AZS-33 #, 36 cast zirconia corundum brick, abbreviated as AZS-36 #, No. 41 cast AZS bricks, abbreviated AZS-41 #. There have many kinds of   refractories   products in wanhao refractory. Fused zirconia corundum brick is pure alumina powder containing 65% zirconium oxide, silicon dioxide about 34% of zircon sand, in t...

High alumina high strength castables is low cement castable with cement content of less than 8%. Its difference between ordinary   refractory   castable is that most of the matrix of calcium aluminate cement is substituted by superfine powder, In conjunction with an appropriate amount of additive. It meets and exceeds performance ordinary cement castable. Its main features are as follows: 1.Low cement content, that is, low calcium oxide content, reducing the generation of low-melting substance in the material, thereby increasing   refractories   , high temperature strength and resistance to slag product. 2.Stirring castable is only about one-half of ordinary water , thus increasing the density of the castable, porosity decreases. After forming conservation, it generates less cement hydrates. There have many kinds of refractory castable in our factory. Such as   Ladle Castable ,Tundish Permeable Layer Castable,   Heating Furnace Castable   and ...

High temperature calcium silicate board have advantage such as light density, low thermal conductivity, high working temperature, appropriate intensity and so on. The working temperature degree is high, so it don’t need cool thick layer to work, the work layer is thinner, but the working layer lining is important, its corresponding lining quantity greatly reduce weight. Civil engineering cost is also reduced. If compared with high thermal conductivity of insulation materials, it can reduce the thermal insulation layer thickness and tube diameter, less equipment weight, it is advantageous to the process arrangement between the cylinder. Another advantage of the calcium silicate board is the use of flexible, it can be refractory insulating layer, and also can be used for thermal insulation layer of castable, unlike other insulating materials, it can increased the complexity of the species. Calcium silicate board construction is convenient, it can use hand ...

Magnesite is the main refractory raw material for magnesia carbon brick , normally there are two kinds, sintered magnesite and fused magnesite. Bu comparing this two kinds, fused magnesite has the advantages of lager periclase crystal, bigger bulk density, etc.it is the priority raw material for producing magnesia carbon bricks . When producing normal magnesia based refractory material, the requirements on megnesite are high temperature resistance and erosion resistance, thus the purity of magnesite, C/S ratio and B2O3 content are important. With the development of metallurgy industry, the smelting condition is becoming harder, the requirement of megnesite used for producing magnesia carbon brick used in smelting equipment(such as Converter, EAF, Ladle) is not only on the chemical composition, but also on structure like high density and large crystal. There have many kinds of refractory products in our factory. Such as fire brick for sale, refractory raw material,  ...

Submerged entry nozzle was development in 1960s. At first time, it was produced from quartz. With the development of continuous casting, it can not meet the requirement of high level continuous casting and special steel casting.  With the improvement of the level of casting, especially special steel casting, quartz submerged entry nozzle can not meet requirement of casting life and steel quality. Therefore, aluminum carbon and aluminum carbon-zirconium carbon combined submerged entry nozzles came out. Compared to quartz submerged entry nozzle, this nozzle is of much longer service life. In order to adapt to low carbon steel casting, the inner layer of the nozzle uses special materials like aluminum magnesium, ceramics, etc. For casting aluminum killed steel, nozzle would easy to get block out of caking. Against this condition, both blowing argon in the way of ventilation and using non-carbon-containing and calcium zirconate material have achieved a good result....

Refractory materials   generally refers to the degree of fire in the 1580 C or more inorganic non-metallic materials, including natural ore ( refractory raw materials ) and according to a certain purpose and requirements, according to a certain process to produce a variety of products (fire resistance), with a certain degree of high temperature mechanical properties and good volume stability. Refractory materials are steel, nonferrous metals, petrochemical, building materials, machinery, electric power, environmental protection and even national defense and other important basic materials, but also a variety of high temperature industrial furnaces and equipment indispensable support materials. Technological progress of refractory materials plays an important role in the development of high temperature industry. Enterprise organizational structure adjustment, namely to "group" principle, the formation of a number of famous and special products, have complete independent devel...

EBT tap hole filler is a main variety of refractories for EBT-EAF. Its casting rate is very important to ensure a normal casting period. On the one hand, It should have the appropriate sintering properties, and it prevent filler from floating up causing accident. On the other hand, it requires moderately formed sintered layer thickness, so that when the lower tailgate open the tap hole filler falling under gravity. The sintered layer cracks, breaks and flows under heat stress effect and static pressure of molten steel. Selection of tap hole refractory raw material puts sintered layer physical properties that can effectively be cracked and broken under heat stress effect under quench in the first place. And more, determination of sintering agent types, amount, speckle size and shape ,reducing agent types and amount to adjust thickness and physical properties of sintered layer. Based on the above viewpoint, there are several main refractory material for produ...

1.Not too rusty. If the steel scrape is too rusty, it will cause more slag, which is bad for furnace lining and production capacity; 2.Not too dusty. If there is too much dust on the steel scrape or at the steel scrape site, more slag will be caused too, the scrape site is better to be clean. 3.Not too big. Higher temperature and longer time will be needed for melting if the steel scrape is too big, it’s better to cut the big steel scrape into small pieces; 4.Not too much carbon. If the steel scrape is with high carbon content, decaburization will be needed, which will increase cost and affect the service life of furnace lining . There have many kinds of refractory products in our factory. When you need any refractory products, welcome to view our factory anytime. Article source: How can you tell the quality of steel scrape?