Calcined Magnesite Refractory Powder

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Caustic Calcined Magnesite Powder
Product Category: 85 Grade,80 Grade,75Grade,70Grade
Caustic Calcined Manesite Ball

Caustic Calcined Magnesite Powder

Product Category: 85 Grade,80 Grade,75Grade,70Grade

Caustic Calcined Manesite Ball
 
Product Category: 85 Grade,80 Grade,75Grade,70Grade

Caustic Calcined Manesite Ball

 Product Grade

Product Category

85

80

75

70

MgO content

85%

80%

75%

70%

Calcium oxide(CaO)

2.5%

2.5%

3%

3%

Loss On Ingition

7%

10%

12%

16%

Silica SiO2

6%

8%

10%

10%

Particle size

≤ 120

≤ 120

≤ 120

≤ 120

 The caustic calcined magnesite is made from calcined magnesite po-wder through Mixing, pressing sphe-roid.It is used for converter steel making, through the splashing cross to protect the frunace, which can raise the furnace life.

No. Item Result
1 MgO      % 98%min
Clarity Test OK
2 CaO 0.2%max
3 Fe 0.0075%max
Cl 0.035%max
SO4 1.0%max
4 Insoluble matter in acid 0.1%max
Heavy Metal 20ppm max
5 Bulk Density 0.32g/ml
Heating Loss 0.8%max
6  Screenings 250   99.5%

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Q:What kind of refractory materials should be used for the intermediate frequency furnace to smelt manganese?
I’d like to make supplements to upstairs that aluminum silicate refractory materials should be needed considering heat insulation.
Q:What are included in fireproofing materials?
Incombustible material of construction fire-proof material Grade A: Cement, stone, steel, coat, glass, aluminium alloy, ceramic tile, etc.; nonflammable material Grade B1: Fireproof panel, rock wool.
Q:Does anyone know the fire endurance of steel stud partition?
The fire endurance degree is 1 hour. which is in line with the national building material fireproofing test standards. CaSo4.2H2O is molecular gypsum molecular structure formula, containing 20% ​​water, crystal water and free water, when putting on fire, 10% of the surface water will slowly evaporate, remaining10% of crystal water. It is a class A fire retardant material itself. The longest time can be 4 hours.
Q:What is the fireproofing requirements of external wall thermal insulation materials?
External wall thermal insulation materials fire rating regulations, 1, the height of a building is greater than or equal to 100m , the combustion performance of insulation materials should be level A; 2, the height of a building is greater than or equal to 60m but less than 100m, the combustion performance of insulation materials should not be less than the level B2. When using level B2 thermal insulation material, every layer should set horizontal fire barrier zone 3,The height of building is be equal or greater than 24m but less than 60m, the combustion performance of thermal insulation material should not be less than the level B2. When using level B2 insulation material, each two-layer should set fire barrier zone ; 4, the height of building is less than 24m, the combustion performance of insulation materials should not be less than the level B2. Besides, when using level B2 thermal insulation material, each three-layer should set a horizontal fire barrier zone.
Q:Which industry does refractory belong to?
It belongs to decoration industry.
Q:What's the fire resistance rating of the exterior fire retardant coating?
First of all, fire retardant coating has no class distinctions. Buildings fire resistance rating is generally classified as follows: I grade fire resistance, II grade fire resistance, III grade fire resistance, IIII grade fire resistance. Buildings with I grade and II grade fire resistance are much common. According to the coating thickness, exterior fire-resistant coating for steel structure can be classified as follows: 1. Exterior thin fire-resistant coating for steel structure, 2. Exterior ultra-thin fire-resistant coating for steel structure, 3. Exterior thick fire-resistant coating for steel structure.
Q:How to divide the materials according to the National Fireproofing Material Standard?
Each country has its own fire safety standards, I do not know which country's standard do you want to know, and each country of fireproof material to the division level is not the same. GB GB 8624, the German standard DIN 4102-1, the British standard BS 476, French standard NF P92 -501 and so on. GB 8624 is Chinese building materials and grade of combustion performance. The information coming form fire resources network (FireTC.
Q:What is the importance of silicon powder in refractory processing?
it depends on the type of refractory material, in addition to lS friends talked about, in the amorphous mobility\ strength should also have an impact
Q:What are the fire protection standards of insulation materials?
The combustion performance of thermal insulation materials for exterior walls of all civil buildings, within the scope of fire design auditing and fire control acceptance, should be brought into the auditing and acceptance. As for the "Management Regulations on Supervisions of Fire Prevention and Control for Building Projects" (Ministry of Public Order No. 106) , all civil buildings which are out of the scope of Article 13 and 14 are included in the random check. Before the release of new standard, it must be strictly implemented the Article II of the "Fire prevention Interim Provisions on civil external wall insulation system and external wall decorative" ([2009] No. 46), namely, the insulation materials of civil buildings must use materials with A-level combustion performance.
Q:Who knows the new fireproof and thermal inuslation matertial?
New fireproof and thermal inuslation matertial: foam concrete building blocks brick. The foam concrete building blocks brick is a new fireproof and thermal insulation material, with distinct advantages compared with the organic insulation material . Foam concrete can be used as wall materials, and it has a good self-insulation properties, so there is no problem of dropping off the outer insulating layer. A small part takes external wall exterior insulation, with mostly anchoring or dry hanging, which are not easy to fall off. Very few uses paste. Since the foam concrete and wall materials are of the same nature and strong adhesive, so it is also not easy to fall off.

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