DEAD BURNT MAGNESITE 95

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Loading Port:
Dalian
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
2000 m.t./month

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Product Description:

DBM-is produced using selected natural magnesite that is purified and is calcined in a shaft kiln.The final product is used for electric furnacefloors and furnace liner tamping.

Many typical specification as following :

Grade

MgO

(min.)

SiO2

(max.)

CaO

(max.)

Fe2O3

(max.)

Al2O3

(max.)

L.O.I.

(typical)

mesh

DBM90

90.00%

1.00%

1.50%

0.70%

0.10%

1.70%

0-400

DBM95

95.00%

1.00%

1.50%

0.80%

0.10%

2.60%

DBM96

96.00%

1.50%

2.50%

0.80%

0.30%

2.90%

DBM97

97.00%

3.00%

2.50%

0.80%

0.30%

3.40%

Packaging & Shipping of DBM :

Packaging: 1.25MT jumbo bags or 1MT jumbo bags

Delivery details: according to customers’ requirements

Application of DBM:

1.Mainly used in processing raw materials of different magnesia refractory,

2.The production of steel lining the bottom and ramming mixes;

3.The raw materials of magnesia brick and magnesia-chrome brick;

4.Used electric steel making furnace, heating furnace, non-ferrous metals blowing converter furnace the bottom and the lining of the refractory materials.

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Q:What are included in fireproofing materials?
There are many types of fireproof materials, and the following listed below is the main species: All kinds of fire retardant coating such as finishing fire retardant paint, fire retardant coating components, fire-resistant coating for steel structure; all kinds of fire-proof materials such as fire retardant material and its products, textile, fire retardant fabric, building materials and products, flooring material and external wall thermal insulation system; all kinds of fireproofing components such as fireproof panel, fire door, fire resistant window frame, fire resisting shutter, fireproofing glass, elevator landing door,ventilating duct, fire-proof sealing material and fire protection smoke exhaust fan. The main indicators to judge fire resistance are: Flame retardency, ignition,production of toxic gases, smoke density,heat release and exhaust gas; fire resistance, combustion performance, heat of combustion, fire-resistant performance, high temperature resistance, fire rating, etc. There are some specific parameters which need to be judged by a professional testing equipment. You can go to the inorganic laboratory to check. The test results of fire rating are accurate.
Q:what are the types of piping insulation material fire rating?
Pipe insulation material Fire rating: heat conductivity coefficient(at room temperature) 0.025 grade non-combustible Class A low temperature bending ≤ 5000 breaking elongation 5,000 specifications 5000 anti-bending strength 5000 compressive strength 5000 special brand of high use temperature -250 ~ 150 ℃ core material, phenolic foam, form, stratiform, shape,flake.
Q:What kind of material is good for cabinet fireproof board
Cabinet fireproof plate can be classified into fiber cement fireproof board, metal fire proof board, mineral wool fireproof board, perlite fireproof board, all sorts of fire prevention board. Fiber cement fireproof board is a kind of ornament plate using siliceous or calcareous as main materials and combined with a certain proportion of fibre material; metal fireproof board is a kind of decorative plate made of aluminum plate, stainless steel plate, color steel plate and other metal materials as the main raw material and added by certain flame retardant materials. Mineral wool fireproof board is a decorative plate made of mineral wool and glass wool; perlite fireproof board is hollow fire proof plate made of low alkalinity cement as the main raw material, and supplemented by certain perlite with fireproof function as filling. Fiber cement fireproof board is a kind of new material increasingly gets popular with superior heat insulation, sound insulation performance, belonging to the A1 level fire materials 1, Suzhou total surplus purification A-grade fireproof rock wool colored steel rock wool board range of applications: Partition ceiling material: Rock wool reference price: On a square 58.00/2 meters, Huarui thermal insulation fireproof materials aluminum silicate refractory aluminium silicate A-grade fireproof heat insulation aluminium silicate plate temperature: 1000 core material: Reference price for aluminum silicate fiber cotton: $3500.00\ ton
Q:How long is the duration of fire resistance of hollow glass magnesium board
Hollow glass magnesium board features fire prevention, waterproof, tasteless, non-toxic, not frozen, not rot, not crack, unchanged, non burning, high strength and light weight, convenient construction, long service life and so on, and it has more characteristics among products of the same kind nationwide. Its fire resistance limit is 0.65℃.
Q:What's the fireproof specification for constrcution external wall thermal insulation materials?
Specification for constrcution external wall thermal insulation materials: Article 1 In order to implement the "State Council opinions on strengthening and improving fire prevention work" (state issued [2011] No. 46), to standardize fireproof design and application of external wall thermal insulation materials of newly constructed, renovated, and expanded civil buildings and to prevent and reduce fire of building external wall thermal insulation materials, this provision is made in accordance with relevant national technical standards and our province real situation. Article 2 When there is no cavity between external wall thermal insulation material for exterior wall and base wall and between decorative layers, the insulation system shall comply with the following provisions: (A) Residential buildings: 1. When the building is higher than 54m, combustion performance of the thermal insulation material shall be A level; 2. When the building is not higher than 54m,combustion performance of the thermal insulation material shall be at least B level. When using B1 level insulation materials, non-combustible materials should be used to make the protective layer, and a protective layer thickness of the first floor of the building should be not less than 10mm, the other floors not less than 5mm; incombustible materials of more than 300mm height should be used to make horizontal fire barrier zone in every floor. (B) Other buildings in addition to residential buildings
Q:How to classify fire resistance rating of brick-concrete structure?
In order to ensure the safety of the building, the fire protection measures must be taken to make it have a certain degree of fire resistance, even if there is a fire, it will not cause too much damage. According to the national conditions of our country, and in the light of other countries standards, < high-rise civil building fire protection design specification > defines fireproof rank of high-rise civil buildings into level one and two; < code for fire protection design of buildings > divides the rank into level one, two, three, four, level one is the highest level, level four is the lowest. Besides that the minimum fire resistance of the building component is specified, buildings of fire resistance rating also specified requirements for combustion performance. Because the component with the same fire resistance limit is different, it is different in the fire.According to our country national standard < building design fire protection code >, the fire resistance rating of the building is divided into four levels. The fire resistance of a building is determined by the combustion performance and fire resistance of building components (such as beams, columns, floors, walls, etc.). Generally speaking, the fire resistance building of level one is a mixed structure of reinforced concrete structure or a mixture of brick wall and steel concrete structure; the fire resistance building of level two is a mixed structure of steel truss structure, reinforced concrete column and brick wall; the fire resistance building of level three is brick-wood structure made of wood roof and brick wall; the fire resistance building of level four is combustible structure which is composed of wood roof and non-combustible wall.
Q:What are the characteristics of the carbon composite refractories?
The features of carbon composite refractories: 1. It is with an aggressive high thermal shock resistance 2. Good resistance to molten steel and slag
Q:What refractory material lead smelting furnace needs?
Q:How to choose thermal insulation materials for flood heating?
By controlling the foaming ratio, nucleating agent size, moudle pressure, temperature of screw, vacuum foaming technology, extruded sheet of different density can be made. The density of commonly used plastic extruded board is 25-50 kg per cubic meter. Plate density is the main factor affecting the cost of the extruded plate. The higher the plate density, the higher the cost price. Plate density is the main factor affecting the cost of the extruded plate. The lower the density of extruded board, the worse quality performance. Plate density of common plastic extruded is between 30 to 38 kilograms per cubic meter. The density of plastic extruded plate of exterior wall is between 30-35, if the density is too low, then the plate will not be strong enough, if high, flexibility of plastic extruded board will be inadequent, unable to bear the stress brought by housing settlement deformation, resulting in cracks in the wall. With the extrusion plate for floor heating should be in 36 kilograms per cubic meter. If it is too low, ground subsidence will occur due to the low strength, resulting in the ground crack. If density is too high, the thermal conductivity coefficient will increases, impacting energy saving. High density extruded plate is generally used for occasions having special requirements for compressive. Parking lot roof should use extruded plate above X350, whose density is 40 kg per cubic meter. The aircraft need to use the Ping extruded board above X500, density in 45 kilograms per cubic meters. High speed railway subgrade need to use extruded plastic board above 700KPA,
Q:Can you tell me the classification of fireproof sealing material.
Organic fireproof sealing material include: fire-proof sealing plate, foam sealing materials, flame retardant module, flexible organic plugging material, inorganic fire sealant, plugging and fire package, etc. Organic plugging material take organic materials as the adhesive with certain flexibility or plasticity when used. The product is thick liquid or cement. Inorganic plugging material take powder of solid inorganic material as the main ingredients, and admixture mixed use, with proper workability. Fireproof bag apply bag shaped object made up by fire-proof materia to large hole fire plug or cable tray fire compartmentation (fire package also called as refractory package or fire protection package). Fire modules is made up of fireproof material, which is a solid with a certain shape and size and can be easily cut and drilled, suitable for holes or fire-proof sealing of cable tray. fireproof sealing material is the plank made up of fireproof material, which is a solid with a certain shape and size and can be easily cut and drilled, suitable for holes or fire-proof sealing of cable tray. Foam block after injection holes can lathery foam and seal hole. Sealing strip is made of fire prevention materials with certain geometry shape or flexible coil geometry.

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