wanhaorefractory

Brown fused alumina is based on bauxite, coke as the main raw material, then melting in the electric furnace with high temperature.The abrasive tools that made of brown fused alumina is suitable for grinding high tensile metal,like general steel,malleable cast iron, hard bronze, etc.,also can be used in making high grade refractory . Brown fused alumina is charactized with high purity,good crystallization,strong liquidity,lower linear expansion rate and erosion resistance. Application: 1.It is used to make high grade refractory ,castable, firebrick etc. 2.Sand blasting--moderate hardness, high packing density, no free silica, large density, good toughness, it is the ideal "environmental protection" type sandblasting materials. 3.Free grinding.It is general domestic high grade abrasive material that is used in the field of  image tube, optical glass, monocrystalline silicon, lens, glass, crystal glass, jade, etc., 4.Resin grinder 5.Coated abrasives--It is t...

Choose the right firebrick is very important, first of all, we need to know what is firebrick and the parameters and dimensions of refractory brick. Usually refractory can be divided into three mail categories. First, ordinary type, also the most widely used type. The main difference of it lies in the shape that it has no concave corners. Second, another type is special shape refractory which is a new type of firebricks widely used in recent years. The weight of such kind brick is about 16kg and it has three concave corners approximately. It is an ideal choice for furnace construction and is also chosen by most people. Besides, special shape firebrick has three more grooves than ordinary type refractory. Third, this is a standard type firebrick. It is usually used for common furnace construction. If there are no other special requirements for brick bond, it’s better to use standard firebrick. For choosing refractories , we can not only select...

When customers purchase firebrick from us, and we certainly have to introduce them a range of knowledge about firebrick, and the density of firebrick most need to know, let our technician to tell you how to introduce customers firebrick density. Firebrick densities are based on different raw materials to the decision, because if the density of refractory bricks are the same, then it shows all aspects of the refractory bricks are the same, so if we choose firebrick, what does that mean? The density of the refractory bricks so we made a classification according to the material used in refractory bricks. The density of the refractory bricks and refractory bricks may also be resistant to some of the impurities in the outside world.   Refractory bricks density of different materials:   Ordinary firebrick: 1.8 ~ 2.0g / cm3 Dense firebrick: 2.05 ~ 2.20g / cm3 Silica brick: 1.80 ~ 1.95g / cm3 Magnesia brick: 2.60 ~ 2.70g / cm3 Alumina ...

China series of industrial policies implemented, receive the positive response of waterproofing enterprises, waterproofing industry adjust the industrial structure in China, the implementation of macroeconomic regulation and control, promotion of new waterproof materials, the fight against fake and inferior products, standardize the market for waterproof and push forward technical progress in the sector, guide the healthy development of industry has played a powerful role in promoting. (1) industry technology equipment level is generally improved. Annual output of 5 million square meters ability of modified asphalt waterproof coiled material production line, better performance of epdm waterproofing extended vulcanizing pot has been put into operation. (2) application products increases obviously, obviously improve the production technology, product structure is obviously improved. SBS/APP modified asphalt waterproofing materials, polymer waterproofing materials, high-g...