Research progress of Messi Biology-silicon steel grade magnesium oxide

Messi Biology said, with the increase of electrical steel production in China, the demand of silicon steel grade magnesium oxide is increasing, the traditional process of preparing magnesium oxide from dolomite is unable to meet the market demand. China is a country rich in brine resources, therefore, it becomes more and more important to study how to resourcefully and comprehensively utilize the salt lake resources.

The silicon steel grade magnesium oxide is a kind of coating material for the preparation of oriented silicon steel, mainly used in the high temperature annealing treatment stage of oriented silicon steel, playing the role of isolating agent, insulating film layer, desulfurization, dephosphorization and so on. Ltd. statistics of the preparation of silicon-steel grade magnesium oxide, process, research progress and problems, pointed out the development direction of silicon-steel grade magnesium oxide preparation technology, and made suggestions on the utilization of

brine resources in China.

The silicon steel grade magnesium oxide is the magnesium oxide coating material used in the manufacture of oriented silicon steel sheet, which is a high value-added magnesium oxide product, mainly used in the high temperature annealing treatment stage in the manufacturing process of oriented silicon steel sheet, playing the role of isolator, dephosphorization and desulfurization agent, and at the same time to react with the silicon on the surface of silicon steel to form an excellent insulating film layer. Silicon steel grade magnesium oxide can also be used in the manufacture of refractory crucible, precision ceramics, special polishing agent, can also be used in the aerospace industry, electronics industry, etc. In 2020, the demand for silicon steel grade high-purity magnesium oxide for domestic enterprises is 100,000t, while the domestic production of about 1000t, far from meeting the needs of enterprises. The market potential of silicon steel grade magnesium oxide is huge, and it is necessary to strengthen the research on the preparation technology of silicon steel grade magnesium oxide.