Dunhua fused magnesia manufacturer
Thermal conductivity λ= 123.5W/(m · K) (at 100 ℃), decreases with temperature rise. The elastic modulus is 1.96 MPa. The chemical property is stable, and there is no reaction or weak reaction between it and various refractory materials except silica brick at a high temperature of 1500 ℃. The grain size of periclase increases with the increase of calcination temperature and holding time, and the slag resistance is also improved. See the table for the quality requirements of fused magnesia in China.
Dunhua fused magnesia manufacturer
In addition, medium grade magnesia is used in metallurgy to manufacture metallurgical powder for joining furnace bottom and furnace wall, and to manufacture slurry spraying furnace lining: to manufacture magnesia bricks and magnesia chrome bricks; In addition to being used as lining of furnace bottom, it is also widely used in electric steelmaking furnace, heating furnace, non-ferrous metal converting furnace and rotary furnace. Use of Dicalcium fused magnesia in fused magnesia manufacturers
Dunhua fused magnesia manufacturer
A magnesium industry person in the northern region said that the transaction situation in the magnesium market was normal last week. As soon as there was a supply of cash including tax of 15500 yuan/ton in Fugu area, it would be quickly accepted. At present, there are few factories in stock. The person looked at the magnesium market this week. A general manager of the magnesium powder factory also said that the factory has few stocks, and the current procurement generally needs to wait for 3-5 days to pick up the goods. This person also believes that the magnesium market is not affected by the ferrosilicon market at present. Although the ferrosilicon market is stable and weak, the magnesium market is unlikely to decline. However, due to the impact, some downstream users of magnesium also use less magnesium, and the magnesium market has insufficient upward momentum under the condition of few orders.
Dunhua fused magnesia manufacturer
According to the statistics of China Nonferrous Metals Industry Association, 588700 tons of raw magnesium were produced in China from January to July 2017, an increase of 8.42% year on year. The cumulative production in Shaanxi was 276800 tons, up 9.19% year on year; The cumulative production in Ningxia was 100500 tons, a year-on-year increase of 21.47%, and that in Shanxi was 81400 tons, a year-on-year decrease of 2.73%. According to statistical data, from January to July 2017, China exported 283800 tons of various magnesium ingot products, up 29.95% year on year, with a cumulative amount of 654 million yuan, up 26.81% year on year. Among them, 152200 tons of magnesium ingots were exported, a year-on-year increase of 40.13%; Magnesium alloy exports totaled 75100 tons, up 10.83% year on year; A total of 51000 tons of magnesium powder were exported, with a year-on-year increase of 40.22%.
Dunhua fused magnesia 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
Dunhua fused magnesia manufacturer
The market scale of energy-saving refractory material industry is very large. For a long time, Yingkou fused magnesia plant has been dominated by developed countries. Major developed countries in the world have always attached great importance to the development of energy-saving refractory industry. China's vigorous development of energy-saving refractory industry conforms to the world trend and plays an important role in optimizing the industrial structure and consumption structure. Fused magnesia
