Magnesite-chrome Bricks

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Magnesite chrome bricks in magnesium oxide (MgO style) and chromium trioxide (Cr2O3) as main component, and periclase spinel as main mineral components of refractory products.This kind of bricks of high refractoriness, high temperature strength, strong alkaline slag erosion resistance, good thermal stability, also has certain adaptability for acid slag.The main raw material of manufacturing magnesite-chrome brick is sintered magnesite and chromite.Magnesia raw material purity as high as possible, chromite chemical composition requirement is: the Cr2O3:30 ~ 45%, CaO: 1.0 ~ 1.5% or less.

Production technology of calcined magnesite chrome bricks in line with magnesia brick.In order to eliminate the bricks in burning process because of MgO style and Cr2O3, Al2O3, or
Directly combined magnesite chrome brick
Directly combined magnesite chrome brick
Iron oxide reaction caused by the expansion of the spinel as of loose effect, also can use common sintering synthetic materials made from magnesite chrome brick.In addition, there is not burned magnesite chrome brick, for example, combined with inorganic magnesium salt solution is not burned

magnesite chrome brick.Don't burned magnesite chrome brick production technology is simple, low cost, heat stability, but the high temperature strength far less burnt brick.The late '50 s, develop a socalled "direct combination" magnesite chrome brick.The characteristics of this kind of brick is

pure raw materials, sintering temperature is high, the periclase, spinel, such as direct combination between high temperature phase, such as low silicate phase for the island shape distribution, therefore, significantly improve the high temperature strength and slag resistance of the brick.
With chrome ore - magnesia compact grinding calcined after fine powder, and magnesia bricks made of coarse particle with method, is an

effective measure to eliminate the effect of loose.Magnesite chrome brick made of using this method, compared with common magnesia chrome brick, brick of low porosity, compressive strength, high refractoriness under load and the bending strength.With chrome ore - magnesite powder compact, high-temperature synthesis of calcined magnesite chrome magnesia-chrome brick made of sand, slag resistance and high temperature strength are better than other magnesite chrome brick.
In addition, there is electricity solitary furnace molten magnesite chrome material directly casting and fused magnesite chrome brick

(see figure of microstructure, see image), electricity melt magnesium chrome material according to the production of brick melt granule recombination magnesite chrome brick, etc.

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Q:Refractory brick, high alumina brick, magnesia chrome brick, magnesia brick, clay brick, which type of high temperature refractory brick?
High alumina brick clay brick up to 1700 degrees above 1500 degrees -1750 degrees of magnesia brick and magnesia chrome brick 1500-1650 degrees.
Q:Magnesia chrome brick
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:What are the environmental hazards of magnesia chrome refractory bricks?
Magnesia chrome brick with MgO and Cr2O3 as the main component of this kind of brick, high refractoriness, high strength, anti alkaline slag corrosion resistance, excellent thermal stability, has certain adaptability in industry wide application of now high temperature acid slag
Q:How much is magnesium chrome brick a ton?
The price of bricks in different places is not the same. The average price is about 3500 yuan
Q:What are the main raw materials of magnesia chrome bricks?
Magnesium alloys are alloys based on magnesium and other elements. Its characteristics are: small density (1.8g/cm3 magnesium alloy or so), high specific strength, high modulus of elasticity, good heat dissipation, good shock resistance, greater impact load capacity than aluminum alloy, good resistance to organic and alkaline corrosion. The main alloying elements are aluminum, zinc, manganese, cerium, thorium, and a small amount of zirconium or cadmium.
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:What are the differences between magnesium chrome bricks, such as direct bonding, re bonding, semi bonding, CO sintering and chemical bonding? Hope expert advice..
Direct bonded magnesia chrome brickThe loose effect caused by the expansion of spinel when the oxide of magnesia brick is directly reacted with the oxide of iron can also be used to make magnesia chromite brick with synthetic common sintered material. In addition, there are non burned magnesia chrome bricks, for example, non burned magnesia chrome bricks combined with inorganic magnesium salt solutions. The unfired magnesia chrome brick has the advantages of simple production process, low cost and good thermal stability, but the strength of the high temperature is far less than that of the burnt brick. In the late 50s, a so-called "direct bonding" magnesia chrome brick was developed. The characteristics of this brick raw material is pure, high firing temperature, periclase and spinel phase with high temperature directly, silicate and other low melting point phase for island distribution, therefore, significantly improve the high temperature strength and slag resistance of brick.
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: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:How many kinds of refractory bricks are there?
Dolomite brick: coating performance, good erosion resistance, but how many bricks f-CaO, yasumizu, it is difficult to transport and storage, production with less.

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