Magnesite Chrome Brick - Direct Bonded Magnesia-Chrome Brick

Magnesite Chrome Brick - Direct Bonded Magnesia-Chrome Brick System 1

Magnesite Chrome Brick - Direct Bonded Magnesia-Chrome Brick

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Features：

Because of the advantage of easily adheringkiln crust and strong erosion resistance, the direct bonded magnesia chromebrick has acting the unchangeable part in burning zone of cement rotary kiln. However,the problem that magnesia chrome brick for cement kiln causes pollution becomesincreasing prominent, and the call for chrome free brick for cement kiln is increasing.

Before thecement industry eliminates magnesia chrome brick, direct bonded low chrome magnesiachrome brick should be chosen and used reasonably to decrease the pollution ofsexavalent chrome as far as possible and ensure the normal operation of cementkiln. Direct bonded low chrome magnesia chrome brick is featured with lowchrome content, high refractoriness under load, high crushing strength, andgood corrosion resistance.

Applications

Thebrick is an ideal transition product for all kinds of direct bonded magnesia chromebrick for cement rotary kiln burning zone before chrome free brick is used incement kiln.

item	index
MgO,% ≥	88
Cr₂0₃	3-5
SiO₂,% ≤	1
Apparent porosity, % ≤	17
Refractoriness under load℃[0.2MPa×0.6%] ≥	1700
Cold crushing strength MPa ≥	60
Thermal shock resistance，time [1100℃， water-cooling] ≥	7

Direct Bonded Magnesia-Chrome brick

Q: Process for producing magnesia chrome brick: The fine powder compacts after calcination produced by magnesia - chrome ore grinding method, brick with magnesia coarse particles, are effective measures to eliminate the effect of loose. Compared with the common magnesia chrome brick, the magnesia chrome brick made by this method has lower porosity, higher compressive strength, higher softening temperature and higher flexural strength. Compacts with chrome magnesite powder, magnesia chrome brick by synthetic magnesia chrome sand made of high-temperature calcination, slag resistance and high temperature strength are better than other magnesite chrome brick.In addition, magnesite brick and electric arc furnace melting magnesium chromium material by direct casting (see Figure microstructure, color), fused magnesia chrome brick material produced by the process of melting particles combined with magnesia chrome brick etc..

Q: Refractory brick, high alumina brick, magnesia chrome brick, magnesia brick, clay brick, which type of high temperature refractory brick?: I produce clay bricks, and my bricks stand at 1500-1700 degrees. Specific depends on what kiln, brick is only part of it

Q: What are the environmental hazards of magnesia chrome refractory bricks?: Nowadays, the use of magnesia chrome bricks, especially in cement kilns in the construction industry, has been required to be free of chromium, and the cement products shall not be tested with chromium.

Q: Magnesia chrome brick: The fine powder compacts after calcination produced by magnesia - chrome ore grinding method, brick with magnesia coarse particles, are effective measures to eliminate the effect of loose. Compared with the common magnesia chrome brick, the magnesia chrome brick made by this method has lower porosity, higher compressive strength, higher softening temperature and higher flexural strength. Compacts with chrome magnesite powder, magnesia chrome brick by synthetic magnesia chrome sand made of high-temperature calcination, slag resistance and high temperature strength are better than other magnesite chrome brick.

Q: Magnesium chrome brick price?: Dashiqiao magnesium brick factory of China Building Materials Academy is a joint stock company invested, constructed and managed by China Building Materials Academy.The plant was built in 1992, officially put into operation in 1993, covers an area of 89 thousand square meters, has a long 118 meters, an annual output of 30 thousand tons of high temperature tunnel kiln production line. The group has 1200 employees, 6 senior engineers, more than 20 engineers and technicians, and has strong technical force. Group's total assets of 5.5 million, with an annual output value of 600 million. Profit and tax 65 million yuan.

Q: What are the types of magnesia chrome bricks for industrial use?: 1. burned magnesia chrome bricks 2. magnesia chrome bricks 3. semi bonded magnesia chrome brick and magnesia chrome brick generally is the three

Q: What is a half combination of magnesia chrome bricks?: Direct binding for magnesium magnesium rock stone or periclase spinel crystals, silicate phases were isolated in the grain asked. Half combined with thermal shock resistance than magnesia chrome brick direct bonded magnesia chrome brick, and about half combined with the characteristics of magnesia chrome brick, some physical and chemical indicators. I don't understand, I know there is a production of magnesia chrome brick factory technicians understand this, is known as gold refractory material factory.

Q: With different capacitance magnesia brick brick: Burnt magnesia brick is made of high quality sintered magnesia as main raw materials, paper pulp as binder. After mixing and high pressure molding, it is fired in a high temperature tunnel kiln over 1550 degrees celsius. It has good thermal stability, corrosion resistance and spalling resistance. Widely used in converter, arc furnace and other industrial furnace lining refractory.

Q: What is the difference between magnesia chrome brick and direct bonded magnesia chrome brick?: The performance of direct bonding magnesia chrome brick is better than that of common magnesia chrome brick.

Q: What are the main raw materials of magnesia chrome bricks?: At present the most widely used are magnesium aluminum alloy, followed by magnesium manganese alloy and magnesium zinc zirconium alloy. Mainly used in aviation, aerospace, transportation, chemical, rocket and other industrial sectors. In practical metals, it is the lightest metal, and the specific gravity of magnesium is about 2/3 of aluminum and 1/4 of iron. It is the lightest metal in practical metals, high strength and high rigidity.

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