Raw Materials for Refractory - Light Burnt Magnesia Product

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Specifications

Easy to install
Low cost to maintain
No need to heat or add water
Free from the size of the furnace
Prolong campaign len

Specifications

1.high MgO content
2.good bulk density
3.low SiO2
4.through ISO certificate

Made of magnesium ore and processed by roasting in reflection kiln and fine grinding. It is characterized by stable quality, high purity and good activity. Widely used in refractory, chemical, building materials, animal husbandry and other industries, it is a good material for soil improvement, and for new products such as eco-friendly desulphurization, glass magnesium board, fireproof board, and alumina spinel, and for steel furnace slag splashing protection. MgO%≥ SiO2≤ CaO≤ IL≤ Granularity (MM) 96 0.5-0.8 0.8-1.2 2.0 0-0.3 95 0.5-1.0 0.8-1.2 3.0 0.3-2.0 90 0.5-1.0 1.0-1.4 3.5 0.3-2.0 85 4.0-8.0 1.2-3.0 8.0 60 mesh - 325 mesh 80 4.0-8.0 1.2-4.0 10 Processing can be made according to customer specifications 70 4.0-10 1.2-5 12 Processing can be made according to customer specifications 60 4.0-15 1.2-10 20 Processing can be made according to customer specifications

Index Item	MgO%≥	SiO2%≤	CaO%≤	L.O.I.%≤	BD≥(g/cm3)
RGDMS–98	97.8	1.0	1.0	0.2	3.50
RGDMS–97.5	97.5	0.7	1.1	.0.3	3.45
RGDMS–97	97	1.5	1.2	0.3	3.45
RGDMS–96	96	2.0	1.5	0.4	3.40
RGDMS–95	95	2.2	2.0	1.0
RGDMS–92	92	4.0	3.0

Q:How to divide the materials according to the National Fireproofing Material Standard?: 2,generally, the external wall thermal insulation materials is divided in accordance with fire rating: 1, the class A combustion performance of insulation materials : inorganic fiber spray coating, glass wool, foam glass, foamed ceramics, rock wool, foam cement, hole-closed perlite ect.. 2) class B1 combustion performance of thermal insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde, gelatine powder polyphenyl granule, etc. 3) combustion performance of class B2 insulation material: molding polystyrene board(EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. I hope it will be helpful for you

Q:What do RH and DH stand for in refractories?: DH :An agreement that allows strangers to build shared keys, originally invented by Diffie and Hellman.

Q:How long is the fire-resistant time of fireproof wooden door?: fire endurance class A (1.5 hours), class B (1.0 hours), class C (0.5 hours).

Q:Application of refractory materials in petroleum industry: Our natural gas transportation, chemicals, equipment, packing, safety, insulation, and even building materials are available.

Q:Who knows the highest temperature the high-temperature refractory coating can resist?: The fire endurance of high temperature fire resistant coating is 3 hours. The fire endurance of fireproof is to go on fire resistance test of any building component according to the time- temperature standard curve, which is the period of time started from being put on fire and ended when losing support function or integrity has been destroyed or losing fire insulation function, expressed in hours. I hope my answer can help you. Thank you.

Q:What's meaning of CN of fire-resistant material?: The commonly used preparation methodsinclude shock compression, high-pressure pyrolysis, ion implantation, reactive sputtering, plasma chemical vapor deposition, electrochemicaldeposition, ion beam sputtering, , low-energy ion radiation, pulsed arc discharge,pulsed laser inducing, etc. But the compounding result of superhard materialis not ideal due to deposition of amorphous CN film, nanometer level sizedC3N4 crystalline grain set in the amorphous film and few large graincrystal.

Q:What is the criterion of entry of refractory clay industry?: Refractory clay refers to clay which has a refractoriness of more than 1580 ℃ and can be used as refractory material and bauxite which used as refractory material . In addition to a higher refractoriness, they can keep the stability of volume under high temperature conditions and have slag resistance and thermal shock resistance and mechanical strength, so they are extremely firm after calcination.

Q:What are the disadvantages of the refractory industry?: The rapid development of continuous casting technology allows Hua Heng refractories to be improved in variety and quality. The development of refractory for continuous casting has a significant impact on the production of continuous casting and quality of continuous casting billet. Constructing and putting Baosteel into action has greatly pushed the improvement of the refractory technology. Continuous casting refractory is an important part of the continuous casting machine. In addition to the general characteristics of refractories, it is also required functions that can purify molten steel, improve the quality of steel, stabilize temperature and composition of the molten steel, control and regulate the molten steel flow. Therefore, it is known as functional refractories. Continuous casting Refractories include: (1) ladle refractory - ladle lining, permanent lining and ventilation components; (2) tundish refractories - permanent lining, coating, insulating plates, clad etc; (3 ) functional refractories - long nozzle for non-oxidizing casting, submerged nozzle, monolithic stopper, sliding gate; (4) ceramic purifier for purifying molten , slag dam, alkaline paint and horizontal separating ring and gate board for continuous casting.

Q:what kind of refractories is used to make the industrial silicon furnace mouth long life?: Fused zirconia corundum brick, the smelter of the glassworks is used this kind of lining, and you can contact by private letter.

Q:How is refractory material made?: It is made by mixing and processing of various refractories.

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