Huludao magnesite manufacturer
Medium grade magnesia is produced from light burned magnesia by ball pressing, high-temperature shaft kiln calcination and other processes. The product has good sintering degree, dense crystallization, and the magnesium content is mgo-95%. The use of medium grade magnesia is: it is used to produce magnesium soldering bricks, medium grade magnesia bricks, magnesia castables and other amorphous refractories, and it is a high-quality raw material for magnesia refractory products.
Huludao magnesite manufacturer
At present, the process method of producing fused magnesia is generally to use electric furnace for smelting and directly smelting magnesium ore. The disadvantage is that the power consumption is large. In addition, 80 kg of carbon rod is required for each ton of qualified fused magnesia (96.5%) smelted with the existing process. Relevant data (Special Refractories, Magnesia Technology, and High Temperature Refractories Collection) show that, The light magnesia can be heated by electric arc to form cubic crystal, that is, heavy magnesium oxide with a melting point of 2800 ℃, that is, fused magnesia. The fused magnesia can be produced by recrystallizing the magnesia produced by furnace smelting in electric furnace.
Huludao magnesite manufacturer
Energy saving refractory is a new industry, which is an industry integrating new technologies to adapt to the transformation of people's consumption structure. The development of energy-saving refractory industry is in line with the world trend. People need fresh air, clean water, pollution-free food, and a good living environment. This is the fundamental reason and driving force for the development of energy-saving refractory industry
Huludao magnesite manufacturer
Last week, supported by the continuous tight spot of factories, the magnesium market was running steadily as a whole. As of June 22, 99.9% of the magnesium ingots in Fugu, Shaanxi, reported the mainstream ex factory tax inclusive cash price of 15600~15700 yuan/ton, and the mainstream transaction price of 15600 yuan/ton, which was a lower price source; 15700~15800 yuan/ton in Ningxia and Taiyuan; In Wenxi area, 15900~16000 yuan/ton, which is stable with the price of the previous week, the acceptance price plus 300 yuan/ton, all of which are non pickling and simple packaging prices. The export FOB price is 2500 US dollars~2530 US dollars/ton. Fused magnesia
Huludao magnesite manufacturer
Production process of large crystal fused magnesia: large crystal fused magnesia is mainly made by melting 91% - 92% magnesium oxide particles with the size of 0 mm - 3 mm in an electric arc furnace. This product has large crystal grain, compact structure, slag resistance and good thermal shock stability. It is an excellent high temperature electrical edge material and an important raw material for making high-grade magnesia bricks, magnesia carbon bricks and unshaped refractories. It is widely used in metallurgy, chemical industry, national defense, scientific research, aerospace, household electrical components, etc.
Huludao magnesite manufacturer
Market conditions. After 2008, China's magnesium market has entered a relatively mature period, and the price is becoming more reasonable. However, since July this year, the price of magnesium has gone crazy again, with a monthly increase of more than 3000 yuan/ton, and the highest point since 2012, reaching 18500 yuan/ton. In terms of market supply and demand, domestic magnesium output and export volume have increased in the past seven months, and supply and demand have basically kept balance. This round of market is mainly driven by the price of ferrosilicon, coal and other raw materials, which is influenced by both factors and human factors.
