Raw Materials for Silicon Wear-Resistant Magnesite Refractory

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Specifications

1.High crushing strength
2.High hot strength
3.Good thermal shock resistance
4.Strong anti-stripping resistance

Characteristic:

High crushing strength
High hot strength
Good continuously forming protective layer during service
Good wear resistance,

Trademark		AZM-1 550	AZM-1650	AZM-1680
Item		Index	Index	Index
Chemical composition(%)	SiC+SiO₂	≥35	≥30	≥32
Chemical composition(%)	Al₂O₃	≥60	≥65	≥65
Volume density(g/cm³)		≥2.55	≥2.65	≥2.70
Apparent porosity(%)		≤20	≤19	≤19
Cold crushing strength(Mpa)		≥80	≥90	≥100
Refractoriness under load(T0.6,°C)		≥1550	≥1650	≥1680
Thermal shock resistance,time(1100°C,water-cooling)		≥10	≥15	≥20

1) Good performance to thermal shock, corrosion, erosion and abrasion resistance.
2) High refractoriness and excellent mechanical strength.
3) Both intermittently and continuously working mode are acceptable, reducing lining cracks.
4) Longer and stable life cycle to reach high efficiency.
5) Suit for all kinds of metal types, reduce residue and porosity of the products.
6) Labor and cost saving by convenient installation and maintenance

Q:What's the poured refractory material?: According to the volume density, it can be classified as follows: Heavy (>2.0g /cm3), medium heavy (1.0-2.0g/cm3), light (0.4-1.0g/cm3); classified by binding agent: hydraulic bond, chemical bond, coagulation binder, hydraulic and coagulation binder; classified by material: material of clayey, high alumina, silicious, magnesian, alumina-magnesia, magnesian-chrome, magnesia-zirconia, silicon carbide-based, etc.

Q:What is unshaped refractory?: Unshaped refractory is a mixture made of aggregate and powder, binder or other admixture. It can be used directly or after proper liquid mixing. The material is a new type of refractory material after calcination, the refractoriness of not less than 1580 DEG C unshaped refractory materials by various varieties, production method and use method thereof can be divided into concrete, pouring material, plastic, ramming material, gunning, casting material, coating material, dry ramming material fire, mud, all kinds of repairing materials (with asphalt surface patch charge, Ma Dingsha) also do not belong to the shape of the column.

Q:Can anyone tell me the requirements of the refractory masonry?？: Refractory materials actually have two functions. The first one is to improve the refractoriness and the second one is to improve the body plasticity of refractory materials.The higher the aluminum content is, the better refractory it will be. Of course, the content of aluminum in refractory materials can not be impoved only by using kaolin. Such raw materials that contain more aluminum as bauxite chamotte should be used as framework.So the content of aluminum in kaolin does not need to be too high and more than 38% of aluminum is enough. However, the viscosity should be taken into account. It will be better if the viscosity is better as the extra bentonite do not need to be added.The refractoriness that is is above 1400 degree is enough.

Q:Who can tell somthing about how to choose fire resistant rating of fire resistance rolling shutter doors?: There is no necessary connection between them. Different fire resistant ratings of bulidings require different fire endurance of different elemements of buildings. According to the fire endurance, fireproof doors can be divided into A-grade, B-grade and C-grade, whose fire endurance should not be less 1.2h, 0.9h and 0.6h respectively. A-grade fireproof doors can be even applied to the material whose fire resistant rating is at secondary level. "Building Regulations" mention that fire resisting shutter can be used as partition of fire?compartment in those places where setting firewalls is not so easy. When using fire resisting shutter whose fire endurance doesn't include unexposed surface temperature rise, it should install closed independent automatic sprinkler system for protection on both sides, and the sprinkler sholud last at least 3 hours.

Q:What do RH and DH stand for in refractories?: The English abbreviation depends on where it is used, and the meaning is judged according to the actual situation. Some are not standard, even the abbreviation of Chinese phonetic alphabet. The dictionary looks up the meaning of these two abbreviations and writes them according to the specific situation!END: Arrow-head definition file (CorelDraw) Arrow-head definition file (CorelDraw)End: endocrine endocrine secretions.END: Endorphin endorphinsEND: End of Data data.END: Electronic Null Detector electronic instrumentEND: Endorse/Endorsed/Endorsing/Endorsement / / support / endorsement endorsement endorsementEND: European Nuclear Disarmament European nuclear disarmamentEND: Exchange Name Documentation exchange file nameEND: Enhanced Network Driver (multiple protocols on a single driver) enhanced network driver (multi protocol driver in a single)

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:How to distinguish the construction fire-proof material rating?: Each country has its own fireproof standards, so I do not know which country you are in ? Each country has different division levels of fireproof materials, such as GB 8624, German standard DIN 4102-1, British standard BS 476, France standard NF P92-501 and so on. GB 8624 Chinese building materials and products combustion performance division levels fireproof resources network (FireTC.

Q:What are the main materials in concrete fireproofing material?: fireproofing materials mainly consist of class A incombustible?material and class B1 nonflammable material. Class A incombustible?material: Granite, marble, terrazzo, cement products, concrete products, gypsum board, lime products, clay products, glass, tiles, mosaics, steel, aluminum, copper alloy; class B1 nonflammable material: Ceiling materials, dry wall, fibrous plaster.

Q:Who knows the fire rating of fire?partition with steel stud?: Partition system made by fire?partition with steel stud and high-quality keel has good fireproofing performance and is non-combustible sheet. Flame burn duration is zero. It does not burn at 800℃, and it is without flame at 1200℃. Its fire resistance rating reaches GB8624-A standard through test, which reaches the highest fireproofing and non-combustible level grade A1. 10MM fire endurance can reach up to 4 hours fire resistance maximum limit. It can absorb a lot of heat during the process of burning and delay the rise of temperature in surrounding environment.

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