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:What are the filling refractories in door leaf of class A fire resistant door?: Magnesium chloride, magnesium oxide, perlite and other mixtures.

Q:What refractories are resistant to fluorine gas?: It is recommended to use fused-quartz brick, which will produce hydrofluoric acid fluorine (an acidic gas) when water vapors. It is cheap. While it is recommended to use silica?brick if it exceeds 1,200 degrees. So acidic refractory is an advisable refractory for using. It works well if the temperature is below 1200 degrees.

Q:What kind of materials are needed to make refractory bricks?: Refractory materials generally refer to inorganic non-metallic materials with fire resistance above 1580℃. It plays an important role in metallurgy, nonferrous metals, chemical engineering, ceramics, and industrial production. Different industry needs different materials. You can turn to the knowledgeable internet.

Q:Physical and chemical indicators of various refractory.: please read"Refractories Standard Series" for refernece, general business standards are higher than the national standard.

Q:Who knows about the B-level fireproof insulation materials?: Organics, extruded sheet, polyphenyl board and phenolic resin. The fireproof?performance of sea capacity module (fireproof and thermal insulation material) is B1-level with the heat conductivity coefficient of only 0.028w / m · k. It is a good choice. A-level: Rock wool, glass wool, silicate, aluminum silicate, calcium silicate, phenolic aldehyde, and foam glass. B-level: Rubber and plastic, extrusion molding, polyphenyl, PEF.

Q:What are the new types of refractories? What are the characteristics? Their applications and developments?: A new type of refractory materials are: A12O3-TiO2-SiO2 refractories, MgO-A12O3-TiO2 refractories, MgO-CaO-TiO2 refractories, MgO-SiC-C refractories, nanotechnology MgO-C brick, MgO-AL2O3-AIN refractories, MgO-La2O3 refractories etc..

Q:How long is the fire-resistant time of fireproof wooden door?: The fire-resistant time of fireproof wooden door is about 1 hour. Fireproof wooden door refers to the door whose door frames, skeleton of the door leaf, door panels are made of timber or timber work and fire endurance reaches the provisions of "GB50045-95 design of tall buildings for fire protection". Fireproof door is one of devices for fire?prevention and separation of the building, generally used on the firewall, entrance and exit between stairs pipe shaft opening, which plays an important role in the reduction of fire losses.

Q:How many fire endurance grades are the AAA fire resisting shutter divided?: The fire shutter is divided into A / B / C classes. The refractory limits are not less than 1.2 /0.9 /0.6 hours. References to "general technical specification for steel fire resistance rolling shutter door GB 14102-93". 4.3 4.3.1 Classification according to fire resistance time. The common steel fire resisting shutter(see Table 3) The categories of the codes of the refractory time hF1 1.5F2 2.04.3.2 composite steel fire shutter composite steel fire shutter(see Table 4). Table 4 and Category Code refractory time hF3 2.5F4 3.04.4 refractory press time, smoke performance classification 4.4.1 ordinary steel fire anti-cigarette curtain (see Table 5) Table 5 and category code leak smoke refractory time h (20Pa pressure) FY1 1.5 ≤0.2m3 / m minFY2 2.0 ≤0.2m3 / m min4.4.2 composite steel fire anti-cigarette curtain (see table 6) table 6 and category code leak smoke refractory time h (20Pa pressure) FY3 2.5 ≤0.2m3 / m minFY4 3.0 ≤0.2m3 / m min excerpt complete fire shutter when the fire district for fire resistance of 3 hours, the opening portion on the firewall setting fire shutter fire resistance of 1.2 hours. **** Fire resistance of 3.0 hours called premium (fire back surface). "Construction Regulation" is mentioned in setting up a firewall and used as the separation of the fire resisting shutter and the fire?compartments. When taking the fire back surface temperature rise as the fire resistance standard of the fire resisting shutter, the fire endurance should not be less than 3.00h; When taking the fire back surface temperature rise as the fire resistance standard of the fire resisting shutter, the two sides of the roll should have protection of ?closed automatic water spray system, and the duration of water spray system should not less than 3.00h. In summary: The fire resisting shutter can be divided into: Grade, A, B and C looking to adopt

Q:Does anyone knows which company produces the better refractory materials?: 1, Xinjiang Seekon new material limited liability company: Xishan Street No. 382,Saybagh District 2, Refractory Material Co., Ltd. In Xuyan, Benxi: Near the Sihu Road, Benxi City 3,Benxi Beitai new refractory material factory sales office address: Benxi city Sihu District Liu Toro No. 16

Q:What are the commonly used admixture for alumina-magnesia refractory? What are the impacts on its performance?: Sodium silicate, pure calcium aluminate cement, boric acid

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