$Raw Materials for Refractory:Dead Burnt Magnesite (MgO 88-92%) Made in China System 1$
$Raw Materials for Refractory:Dead Burnt Magnesite (MgO 88-92%) Made in China System 2$

$Raw Materials for Refractory:Dead Burnt Magnesite (MgO 88-92%) Made in China$

$Raw Materials for Refractory:Dead Burnt Magnesite (MgO 88-92%) Made in China System 1$

$Raw Materials for Refractory:Dead Burnt Magnesite (MgO 88-92%) Made in China System 2$

Raw Materials for Refractory:Dead Burnt Magnesite (MgO 88-92%) Made in China

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 2000 m.t./month

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Quick Details

Place of Origin:

China

Brand Name:

CNBM

Packaging & Delivery

Packaging Details:	as per buyer choice
Delivery Detail:	After LC confrmation 20 days.

Specifications

Dead Burned Magnesite
Used for refractory materials.
MGO:86-90%min and 91-95%
Size;0-5mm,0-3mm,1-5mm and+

Dead Burnt Megnesite (Mgo88-92%) Made in China

Dead Burnt Magnesite

Used for refractory Materials,

Mgo,----------- 88-90%min, and 90-95%

Sio2,----------- 4.5%max.

Cao,------------2.5% max.

Fe203,-------- 1.5% max.

Al,---------------1.5%max.

Loi,--------- ----1%max

B.D,-------------3.15%

Size; 0-2mm, 0-5mm and others

Paking; 50 Kgs , and than into 1000 Kgs bags or, as per buyer choice.

Payment; LC at sight, with 30% advance and 70% after BL.

Note: We can also produce Fluorspar 80% and white talc of 95% whiteness.

Basic Information

	Business Type:	Manufacturer, Trading Company
	Main Products:	Flourspar Lumps,Talc Lumps garephite,chrome ore copper ore,manganese ore Mica,DBM
	Number Of Employees:	11 - 50 People

Trade & Market

	Main Markets:	Western Europe Eastern Asia Mid East Southeast Asia Eastern Europe North America
	Total Annual Sales Volume:	Below US$1 Million
	Export Percentage:	81% - 90%

Factory Information

	Factory Size (Sq.meters):	1,000-3,000 square meters
	Factory Location:	peshawar, NWFP, Pakistan
	No. of Production Lines:	6
	Number of R&D Staff:	5 - 10 People
	Number of QC Staff:	21 - 30 People
	Contract Manufacturing:	CNBM

Q:Who knows what is the standard of insulation material whose fire proof is level A?: Non combustible materials of level A: WW inorganic active wall thermal insulation material, Cement foaming thermal insulation board, Glazed hollow bead insulation mortar, rock wool board, Glass wool board, Foam ceramic.Non combustible materials of level A, endowed with low density, low thermal conductivity, higher bearing capacity, convenient construction , economy and durability, are widely used in heat pipe, heat equipment, other industrial pipeline equipment , thermal insulating materials on industrial buildings, and used as heat preservation, thermal insulation, sound absorption materials of industrial and civic buildings.Non combustible materials of level A are used more for refractory protection coating material of steel structure because of its good thermal stability.

Q:What material is used to make furnace pipe of refractory bricks?: Furnace pipe of refractory brick is an indispensable part of casting cupola. Furnace pipe is divided into upper and lower part. Radial direction and axial breathing. The upper furnace pipe adopts double layer steel structure and countercurrent air supply mode. The lower furnace pipe is made by processing integrated heat resistant steel in flange, fin and inner wall in wearing parts. The operation life is over 3000h. There is radiating rib of heating air on the edge of furnace pipe liner by using the heat of casting cupola to heat air in cupola. Hot air temperature is about 180-250℃, which contributes to improve trhe thermal efficiency of production equipment, decrease production cost and improve economic benefit of enterprises.

Q:What is the the best ratio of mortar in refractory cement?: Specifical proportions are as following: 42.5R cement is 425 rapid hardening cement. Using the 425 cement to compound the mortar. The reducion of cement will naturally impact the workability of the mortar. The mix design standard of the mortar specifies the minimum amount of cement is not less than 200kg / m3. If it is composite mortar, and the strength and workability can be ensured, it is Ok to use 425 to compound. You can look for instructions of mixing proportion of mortar online as a reference.

Q:Why can aluminium hydroxide not be used to make refractory material?: Hope my answer is helpful to you. It decomposes and produces aluminium oxide and water after heating, chemical equation for the reaction is: 2Al(OH)3=△=Al2O3+3H2O. Aluminium hydroxide can't be directly used to make refractory material because aluminium hydroxide is not stable.

Q:What's the maximum temperature that the high-temperature resistant refractory ceramic fiber cotton can endure?: It depends on what material the ceramic fiber gasket uses. It’s usually referred to high temperature gasket made from ceramic fiber paper. It is generally classified into normalized form and high alumina type, of which the former can resist the maximum temperature of 1260℃ and its continuous use temperature is 1000℃, and the latter can be used for a long period at the temperature of 1200℃. Nichrome wire, stainless steel wire and glass fiber are reinforced. Ceramic fiber coating cloth and slag cloth, sintering ceramic fiber cloth and ceramic fiber fumigation cloth) Characteristics of the ceramic fiber cloth: It has high temperature resistance, low heat conductivity, thermal shock resistance, low thermal capacity; superior insulating property at high temperature, long service life; resistance to nonferrous metals like molten aluminum and zinc erosion; low and high temperature strength; innocuity with no adverse effect on the environment.

Q:What is the most reasonable drying heating curve of magnesia refractories? Products of less than 0.5T: The material is very troublesome, it might crack horrendously if not baked well and all of them may be scraps after being took out from the furnace. Magnesia hydration is inevitable during the baking process. As volume expansibility of magnesite reaches 200%, so it is easy to crack. The key to bake is to quickly rule out the water vapor in furnace, especially within 150 degrees Celsius. After quickly ruling out the water vapor in furnace to avoid excessive reaction with magnesia of 150 degrees, it can be operated in accordance with convention. In addition, you should pay attention to the heat sources, for which i recommend electrical and coke to avoid generating a lot of water vapor during the natural gas combustion process which will worsen the situation.

Q:What does refractory mean?: Acid refractory material usually refers to refractories with SiO2 content greater than 93%. Its main characteristic is that it can resist acid slag corrosion at high temperature, but it is easy to react with alkaline slag.

Q:What are fire?ratings of wall thermal insulation material?: External wall thermal insulation materials are divided into A and B according to combustion level. Grade A is incombustible?material, while grade B is combustible?material. A few years ago, fires in CCTV building and Shenyang hotel resulted from grade B material. Currently grade A is usually used, and some are even cheaper than the grade B material. Grade A is roughly divided into insulation mortar, phenolic board, rock wool board, foam cement board, etc. Insulation mortar is quite good. It is easy and convenient to construct, has low cost, but the production is too simple and it is easy to fake. It is recommend to find a large manufacturer with complete formalities, such as provincal records of production, provincal records of use, city records, type test report at or above the provincial level, national fireproof report and design drawing collection of department of construction. Lack of any is unsafe. It is recommended to use mortar from Hebei Qizheng Haocheng New Building Material Co., Ltd. It is absolutely large manufacturer. MPC thermal?mortar produced by it is recommend product of Department of Construction in Hebei Province! Generally speaking, the combustion of phenolic aldehyde is grade B, but it can barely reach A2 when a thin layer of mortar is wiped outside.

Q:Is aluminium oxide refractory material?: Calcination aluminium oxide is refractory material of fine performance made from pure aluminium oxide through high-temperature calcination. It can be made into coarse-grained material, fine-grained material, fine powder and micro powder, which can be made into pure jade burnt products. For example, corundum brick, lightweight corundum bricks. It can also be made into a variety of unburning products together with other materials, such as carbonaceous materials. For example, aluminum carbon and aluminium zirconium carbonaceous materials. As for the production of unshaped refractory material, there are more species. It can be corundum, rubing grain, corundum spinel and can also be added into other materials to improve specific performance. It isn't limited to high-alumina castable refractory and it can be castable refractory, ramming?mass, impressionable plastic material, gunning mix and refractory mortar.

Q:Does anyone know the characteristics of refractory for glass kiln?: Quartzitic sandstone. Also known as quartzitic sandstone or white gravel. Which is a kind of natural refractory and quartz sandstone bonded by the kaolinite. Who appearance is better to be steel-grey, dense and hard, free of impurities and stripes. Its main crystalline phase is mainly quartz and kaolinite. Which has obvious stratified structure and anisotropism. The refractoriness fluctuation is between 1650~1730 ℃. The expansibility of quartzitic sandstone is different from that of silica?brick, who has maximum coefficient of thermal expansion under temperatures of 700 ~ 800 ℃, and it is most likely to burst at this time. The load softening temperature and the compression strength of calcined quartzitic sandstone have been improved significantly, with small residual expansion, stable volume, better thermal shock resistance, so it is generally to use calcinated quartzitic sandstone as refractories. which has been widely used as sidewall blocks on the small and medium sized furnaces.

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