Synthetic Magnesite Refractory Products

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High iron synthetic magnesite, high iron & high CaO magnesite,magnesite alumina spinel, magnesite chrome spinel. All the kinds of synthetic magnesite and spinel are made from high quality magnesite ore and dolomite ore, by requiting and sintering them at high temperatures together with iron powder, chrome powder, and bauxite as an additive.

Index

Chemical Compostion /%

Physical Index

Brand

MgO

Al2O3

SiO2

CaO

Fe2O3

BD/g/cm3

MTS-68Aa

68-80

 

≤2.5

≤9.0

≥10.0

 

MTS-68Ab

68-80

 

≤3.0

 

≥10.0

 

MTS-68Ac

68-80

 

≤5.0

 

≥10.0

 

MFC-83A

≥83

 

≤1.0

7-8

6-8

 

MFC-83B

≥83

 

≤1.2

7-9

6-8

 

MFC-83C

≥83

 

≤1.5

7-9

6-8

 

MAS

28-29

64-65

5-8

1.2

 

3.20

MCa-32

63-65

 

≤1.0

31-33

≤3.0

3.30

MCa-25

72-74

 

≤1.0

23-25

≤1.0

3.30

Synthetic Magnesite is a kind of  industry raw materials with properties of moderate basicity and chemical activity, widely used in the fields of national defense, medical, chemical, paper-making, shipbuilding and environment protection etc.

l Its primary technology application contain the areas as following: cellulose acetate, drilling mud, fire retardance filling, flue gas desulfurization, leather-making, oil refining additive, medical industry, rubber and plastics industry, sugar industry and wastewater treatment etc.

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Q:How to make use of waste refractory materials whose main elements are alumina and mullite?
Crushing and pressing refractory bricks, or refractory parts . Such as welding positioner tracks use disposable tools.
Q:What are the raw materials of refractory?
Of course, different types have different raw materials: Magnesite (the electric smelting: alkaline refractory, magnesia-carbon bricks, alkaline, high-purity) + crystalline flake graphite + phenolic resin + additive (silicon powder, aluminite powder, silicon carbide powder, or high-temperature asphalt,etc.) , acidic refractory: The neutral is not easy to answer. such as. You can check out the classification, such as
Q:What requirements should refractory materials meet?
The operating temperature of forging furnace is above 1000, which can ensure the normal operation of the furnace, prolong the life of the furnace and save energy. General requirements for refractories are as follows. 1 They should deform at a sufficient temperature without melting. 2, They should have necessary structural strength without softening and deforming. The volume should be stable at high temperature without expansion, contraction or cracking. 4, They can resist erosion of molten metal, slag, gas and other chemicals.
Q:What advantage and disadvantages it has compared to common fire insulation materials
Generally speaking, high fire resistance, non combustible Various standards for evaluation varies according to different types, which includes anti-corrosion, acid and alkali resistance, waterproof, anti termites and so on. I hope my answer can slove your problem
Q:What are the types of steel refractory materials
Large steel ladle usually made with magnesia carbon brick, of course, it contains a intermediate layer (such as good a little high alumina castable), heat insulation layer and heat preservative materials Alumina-magnesia castable is OK for small steel ladle
Q:Is the ball mill used in production of refractories?
Refractory is a kind of non-metallic material that is of resistance to thermal shock and chemical erosion, low thermal conductivity and low expansion coefficient. The refractoriness of the refractory is not less than 1580℃. The usage of the refractory is broad. Refractory materials include refractory bricks and powders. Abandoned refractory bricks can be recreated as new bricks after they are crushed by a crusher and grinded by a ball mill. The ball mill and crusher are needed to grind and crush the material in the production of the refractory. The ball mill produced by Zhengzhou Xinhai Machinery Manufacturing Co. has excellent performance and there are many successful cases in Inner Mongolia, Heilongjiang and Guangdong. At the request of the national environmental policy, the company adjusts the equipment details, allowing the equipment to ensure the volume of production while reduce energy consumption.
Q:What's the feature of construction external wall fireproof and thermal inuslation matertial?
It has properties of low heat conductivity coefficient, low density, high flexibility, fireproof and waterproof. Its heat conductivity coefficient at normal temperature is 0.018W / (K · m) . The thermal insulation property is three to eight times that of the traditional materials. And it is completely waterproof. [2] Thermal insulation lining has properties of low heat conductivity coefficient, low density, high flexibility, fireproof and waterproof. Light, generally about10-96kg / m3, 20kg / m3 or less is felt, 24-48kg / m3 is middle-hard plate, 48-96kg / m3 is hard plate, wherein 48kg / m³ can be used as ceiling, with softening point being 500 ° C , thermal insulation 300 ° C. It is widely used in the United States, k =0.9. Calcium silicate thermal insulation product is developed in 1970s in China. With high compressive strength, low heat conductivity coefficient, recycle and easily construction, it is widely used in the power system. In China, small workshop production were the most common, then four production lines were gradually introduced from America, including instant fiber forming, dry method punched felt, which are advanced and quality, temperature endurance up to 800-1250 ° C.
Q:Who knows what kind of fire protection material is better?
Characteristic of polyurethane rigid foam thermal insulation decorative composite board: (1) ultra high cost performance, increased property's selling point (high cost performance) new model of thermal insulation material, excellent thermal insulation properties, elegant decorative effect, 50 years of service life, reduce maintenance costs and social waste. (2) it overcomes defects of traditional insulation technology (to solve the freezing and thawing, veneer cracking and shedding) traditional benzene board, the phenomenon of freezing and thawing that is easily appear in plastic extruded sheet, paint finish is easy to crack; its veneer facing can easily fall off; thermal insulation materials and wall are poorly adhered, easy off the whole. There is a themal bridge in dry hanging wall. (the characteristics of polyurethane composite board)
Q:How long is the duration of fire resistance of autoclaved flyash-lime bricks?
The fly ash effect will continue to play a role in a considerable period of time, so the long-term strength keeps strengthening, the average age of 90 days of strength will grow 80%-100% more than the 28 days.
Q:Can anyone say something about what A-level fire-proof decorative material is?
The major products are material monomer A-level and composite A-level, now a lot of B-level material is wrapped in calcium silicate board. The foam cement overall composite is level A, such as phenolic aldehyde composite, as well as some of the foam paddings, monomer A-level includes rock wool, ultra-thin insulation panel and the like. But there are few products with real sound A level qualification. Many manufacturers are playing the edge ball with A-level fire rating examining reports and B-level system detection reports and records, but this situation will not last long, which will soon be clear.

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