wanhaorefractory

The properties of magnesia are classified into chemical and physical properties.The chemical properties of magnesia sand is mainly refer to the periclase.  Mgo is the main component in the periclase. Periclase is one of the most common minerals in cement clinker. It can coexist with four kinds of main mineral C3S, C2S, C3A, C4AF in the cement clinker. So periclase has good erosion resistance against cement clinker. （1）Periclase has very high melting point so that the magnesia refractories are charactorized with good high-temperature resistance. （2）Periclase has good thermal conductivity. When using high mgo content refractory , and the kiln skin can not be hung, the surface temperature of kiln body will raise. At that time, not only it will cause a great loss of heat dissipation, but also easy to burn the cylinder. （3）Periclase has high thermal conductivity. So that the thermal shock resistance for magnesia refractories are not enough. In the process of using, t...

Domestic magnesite prices soaring, foreign markets are also affected. Originally relatively stable European market prices are rising higher and higher nearly six months because of the shortage of supply of Chinese magnesia. As researched, The current European market fused magnesia FOB prices rose to 700-960 US dollars / ton from the beginning of the 500-680 US dollars / ton, rarely over 40%. US market fused magnesia prices have also risen, but the increase is not about 10%. FOB US prices from the beginning of the 900-1400 US dollars / ton float to 1000-1500 US dollars / ton. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc. Wanhao has a staff scale of 410 people including 63 engineers as well as 180 sets of production and test devices, and also Wanhao has an annual output of 160,000 tons of refractory products . Wan...