Refractory DBM Dead Burnt Magnesite 97 percent

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 3000 m.t

Supply Capability:: 50000 m.t/month

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Refractory DBM Dead Burnt Magnesite 97%

Specifications

1.Feed additive
2.Fertilizer for Soil Remediation
3.Water Treatment and paper
4.Making Portland Cement
5.For abrasive wheel

$Refractory DBM Dead Burnt Magnesite 97 percent$

Kind	Brand	Chemical Composition %					Grain size (mm)
		MgO Min.	SiO2 Max.	CaO Max.	Fe2O3 Max.	B.D Min.
High-Purity Magnesite Sinter	DBM-96	96	1.0	1.4	0.8	3.25		0~30
	DBM-97B	97	0.7	1.4	0.8	3.25
	DBM-97A	97.5	0.6	1.2	0.7	3.30
	DBM-98	97.7	0.5	1.2	0.5	3.30

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$Refractory DBM Dead Burnt Magnesite 97 percent$

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Large production capacity(20000-tons per month) ensure the fast production cycle after confirmed the order.
Produce the products according to clients' requirements.
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Provide 24 hours'consultation service.We are ready to answer our consultations at any time.

Q:What's the fire endurance of A grade fireproof glass curtain wall?: An hour and a half, an hour, and half an hour. As a key step in the home fire prevention, fire door is particularly important. According to the fire endurance and heat insulation performance, it can be classified as follows: A class fire door with fire endurance of no less than 1.5h; B class fire door with fire endurance of no less than 1h; C class fire door with fire endurance of no less than 0.5h. We can choose according to different needs, while A class fire door and B class fire door are now commonly used. Fire door has great varieties, and the material it uses is also of wide range. It includes stainless steel fire doors, glass fire doors, steel fire doors, etc. The most important feature of fire door is its fire resistance period. The main difference between A class fire door and B class fire door lies in their fire endurance, of which the former is no less than 1.5h, while the latter is no less than 1h. Difference between A class fire door and B class fire door also lies in their fireproofing material. That is the thickness of the built-in fire prevention board, of which A class fire door is 52mm, while B class fire door is 46mm. Therefore A class fire door obtains longer fire resistance period than that of B class fire door and gains better fireproof performance. A class fire door and B class fire door also differ in the places they are used. A class fire door is generally used in important fire fighting access of machine rooms, warehouses and oil depots, etc. and flammable and explosive public places, while B class fire door is generally used in the ordinary fire fighting access of some ordinary buildings. But B class fire door is more widely used than A class fire door.

Q:Where is the production of refractory manganese alloy manufacturers? Manganese is recommended between 63 and 70!: There are a lot of silicon manganese alloy manufacturers, production market is relatively large, the manganese content in manganese alloys between 63 to 70 or more common

Q:How to choose thermal insulation materials for flood heating?: How to choose the appropriate thermal insulation materials: 1, Thermal insulation material shall have a small thermal conductivity, good thermal insulation properties. Besides, that also depends on whether the specific temperature changes of in the insulation materials' working environment can ensure the material has good thermal insulation. 2, when purchasing, we must be make sure it is light, and loose enough. These heat insulating material can not only afford bracket, and can also increase the heat transfer performance of the heat insulation material. prevet water penetration. Waterproof function should be soild, even if it accidentally absorbs water, its thermal insulation function must be guaranteed. 3, None of the organic material should applied to production of insulation materials, Thermal insulation material containing organic matter may get rotten, mildewed, and cause other destructive . At the same time they should not contain flammable substances, in order to avoid the fire. I hope my answer can help you

Q:How to calculate the thickness of choosing refractory? Such as steel ladle should choose what kind of refractory and using what thicknes?: I feel the concrete thickness should depend on the experience and the actual situation. As for the specific method, I also can't say too accurately. If it's ladle, it generally chooses alumina magnesia castable.

Q:what is the original materials of fireproof coating?: Main raw material includes high-temperature aluminum surface, expanded vermiculite,closed cell perlite, high mark number cement, Fireproof paint itself is flame-retardant or non-combustible, protecting the substrate from direct contact with the air,delaying the time for catching fire and reducing the burning speed. For example, indoor thick fire retardant coating for steel structure.

Q:what's the classification of fireproof materials?: Fireproof materials are used in construction, in various forms and it has played an absolute role in modern fireproofing, common fireproofing materials include fireproof?panel, fire door, fireproofing glass, fire?retardant?coating, fireproof bag,etc Or the material itself has a high temperature resistance, heat-resistant, flame-retardant properties. Most of them are used for the construction industry.

Q:What are the materials used in refractory material processing?: Refractory materials generally refer to inorganic non-metallic materials with a refractoriness of more than 1580 degrees. It includes natural ore and a variety of products made by a certain process according to certain requirements. It has certain high temperature mechanical properties and good volume stability. It is the necessary material for all kinds of high temperature equipment. Ordinary refractories are often used brick, semisilica brick, clay brick, high alumina brick, magnesia brick etc..

Q:What are the fire protection standards of insulation materials?: According to the three versions of GB8624 (1997,2006,2011), the fire rating of external walls can be basically divided into: A1-, A2-, B1-, B2-, B3-level. The detailed divisions are determined by many technical indicators. It is a very professional and technical long story. Please contact QINGDAO SHANFANG INSTRUMENT CO., LTD for detail information, they are specialized in manufacturing fire rating testing instruments of external walls.

Q:What kind of refractory bricks material is best?: In general, aluminous fireclay brick is used. GB / T 3994-2005 insulating fireclay brick. Bricks with good material are as follows: high-grade thermal insulation refractory brick, GB/T 3995-2006 high alumina thermal insulation refractory brick. Model is A13, and the texture is aluminium oxide. A13 50u, high grade heat insulating brick B5; intermediate heat insulating brick B2, etc.

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