wanhaorefractory

Refractory brick is made of refractory clay or other refractory raw materials, it is in color light yellow or brown. Refractory brick is a kind of refractory materials with a certain shape and size. According to manufacture methods, it can be divided into sintering brick, non-sintering brick, fused cast brick, and refractory insulating brick; according to shape and size, it can be divided into standard brick, common brick, and special shape brick. Refractory bricks can be used as furnace building material and structural material for building furnaces and various thermal equipments, and it can withstand various physical and chemical changes and mechanical effects at very high temperatures. For example, refractory clay brick, high alumina brick, alumina carbon brick, magnesia brick, etc. Refractory brick is one of the most widely used products in refractories, and do you know its characteristics? 1. Chemical composition: The main components determine refractory bricks q

During continuous casting, the   casting powder   is mostly used (together with submerge nozzle) except from casting billets with small section. Practice has proved that this process is one of the important conditions to ensure the quality and normal operation of casting billet. In the early 1970s, the process was successfully applied to slab continuous casting in our country and solved the problem of slab longitudinal crack, and then was gradually popularized and applied. In recent years, a series of protective slag has been established, Some special fluxes for continuous casting of special steel are developed, which provide necessary conditions for further development of continuous casting in China. There have many kinds of   refractory products in our factory. Function of   mold fluxes : 1 Insulation 2 Isolating air and preventing molten steel from oxidizing two times 3 Purify the slag interface and absorb the inclusions in molten steel 4 Lubrication shell and improve

First, refractory production continued to decline. The refractory production in 2016 continued the downward trend in 2015, a decrease of 8.56%. The main reason for the decline in refractory production is the rapid and drastic reduction in the market demand for refractory materials for infrastructure projects.  From the output of different refractory products, silicon brick production decreased the most, as high as 37.59%; high alumina products and clay products were down more than 10%. Second, the export trade situation is grim. In 2016, the total export volume of refractory raw materials and products fell to its lowest level in the past five years, only 2.565 billion USD, down 11.62%, and a decrease of 765 million USD from the 3.33 billion USD, the highest point in 2014, down 22.97%. Third, the imports of refractory raw materials have increased. In 2016, the total imports amount of refractory raw materials and products is 324,900 tons, an increase

Refractory brick is made of refractory clay or other refractory raw materials, it is in color light yellow or brown. Refractory brick is a kind of refractory materials with a certain shape and size. According to manufacture methods, it can be divided into sintering brick, non-sintering brick, fused cast brick, and refractory insulating brick; according to shape and size, it can be divided into standard brick, common brick, and special shape brick. Refractory firebricks can be used as furnace building material and structural material for building furnaces and various thermal equipments, and it can withstand various physical and chemical changes and mechanical effects at very high temperatures. For example, refractory clay brick, high alumina brick, alumina carbon brick, magnesia brick, etc. Refractory brick is one of the most widely used products in refractories, and do you know its characteristics? 1. Chemical composition: The main components determine refractory brick