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Haicheng Guangling Refractory Manufacturing Co. LTD

Tel: 0412-3336266 3266888

Hotline: 4000-0404-06

MP: 13904924268

Fax: 0412-3222566

Zip code: 114200

Website:en.hcglnh.com

Add: Mafeng Town, Haicheng City, Liaoning Province

The difference between heavy - fired magnesite and light - fired magnesite

2019-11-16 16:54:32
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Difference between heavy magnesia and light magnesia

Sintered magnesite is mainly made of magnesite, magnesite or magnesium hydroxide extracted from sea water after calcination at high temperature. Strong hydration resistance. CO2 is released when the magnesite is calcined at 700-950 ℃. The resulting magnesite is a soft porous loose substance and cannot be used as refractory. The magnesite calcined at 1550-1600℃ is called sintered magnesite. The burnt magnesite fired from natural magnesite is called sintered magnesite by using one-time calcining or two-step calcining process of high-temperature equipment such as vertical kiln and rotary kiln. Sintered magnesia is divided into 18 grades according to its physical and chemical indexes.

When the magnesite is calcined at 1800℃, carbon dioxide completely escapes and magnesium oxide forms a magnesite compact block, which is weighed and burned magnesite (also known as sintered magnesite). This magnesite has high refractoriness. Its main component is magnesium oxide, which is made of natural extra-grade magnesite by flotation purification, light burning, fine grinding, high-pressure pressure ball and ultra-high temperature oil calcined in vertical kiln.

Light burning magnesium powder is a folding, compression, high strength, gas hard, cementitious material, widely used in national defense, medicine, chemical, paper, shipbuilding and other industries. In the building materials industry can be made tire board, particleboard, heat preservation column, railing, artificial marble, asbestos tile, ordinary tile, wallboard, laid ground. With the progress of science and technology, light burning magnesium powder is more widely used in civil products, heavy and heavy machinery packing boxes, bottom beam packaging, high temperature refractory materials, but also can produce beautiful and generous bright strong furniture, in the mechanical industry can be made as a casting model.

Lightly burnt magnesia


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