Raw Materials for Refractory Castable for Industry Furnace

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Specifications

a.high performance,good corrosion resistance
b.high refractoriness,good wear resistance
c.good heat shock
d.ISO9001-2000

high quality refractory castable for industry furnace

Refractory castable description

We are specialized in refractory castables,Our company produce all kinds of castables.

such as unshaped refractory materials,self-flow castable,low-cement castable,ultra-low cement,cement-free castable,quick drying castable,plastic castable and dense castable and so on.

Refractory castable annual supply

Our company has a dozen cooperative production factories which are better in productive technology and quality management. All the factories has passed ISO9001 quality management system certification. And the annual supply of refractory castable is 100,00-200,00 tons.

Refractory castable features

1. High refractoriness, High refractoriness under load.
2. High density, low porosity.
3. Good slag resistance and corrosion resistance.
4. High strength and wear resistance.

5. Good resistance to flake performance.

6. Good thermal shock stability.

7. Scouring resistance

Refractory castable technology parameters

Item		SLB-1	SLB-2	SLB-3	SLB-4
Chemical composition	AL2O3 ≥	45	65	72	80
BD	110°C×24h	2.3	2.65	2.65	2.75
	1500°C×3h	2.25(1250°C)	2.65(1400°C)	2.65(1400°C)	2.7(1450°C)
Linear change rate(%)	110°C×24h	-1~0	-1~0	-1~0	-1~0
	1500°C×3h	-0.4~0(1250°C)	-0.4~0(1400°C)	-0.4~0(1400°C)	±0.5~0(1450°C)
Flexural strength	110°C×24h	40(1250°C)	5	5	6
	1500°C×3h	4	8(1400°C)	8(1400°C)	10(1450°C)
Compressive strength	110°C×24h	6(1250°C)	40	40	45
	1500°C×3h	30	55(1400°C)	55(1400°C)	55(1450°C)
Add water(%)		6~7	5~6	5~6	6~7
Self-flow volume(mm)		170-210	170-210	170-210	170-210
Service temperature(°C)		1300	1450	1450	1500

FACTORY:

$Refractory Castable For Industry Furnace$

Q:Who knows which chrome refractories produced by the Henan refractory plant can be used for continuous casting?: The sand is used as the filling material for the bottom of the ladle. Zhengzhou real iron refractory Co., Ltd. is specialized in the production of non-ferrous industries. All kinds of refractory materials used in glass kilns and cement kilns are sold directly by manufacturers. The prices are reasonable.

Q:What kind of material is refractory bauxite?: Bauxite, also known as bauxite alumina or bauxite with high alumina, is the main raw material for the production of high alumina (aluminum content ≥48%, belongs to LAS) refractory. It must be calcined bauxite ore.

Q:How to classify fire resistance rating of brick-concrete structure?: In order to ensure the safety of the building, the fire protection measures must be taken to make it have a certain degree of fire resistance, even if there is a fire, it will not cause too much damage. According to the national conditions of our country, and in the light of other countries standards, < high-rise civil building fire protection design specification > defines fireproof rank of high-rise civil buildings into level one and two; < code for fire protection design of buildings > divides the rank into level one, two, three, four, level one is the highest level, level four is the lowest. Besides that the minimum fire resistance of the building component is specified, buildings of fire resistance rating also specified requirements for combustion performance. Because the component with the same fire resistance limit is different, it is different in the fire.According to our country national standard < building design fire protection code >, the fire resistance rating of the building is divided into four levels. The fire resistance of a building is determined by the combustion performance and fire resistance of building components (such as beams, columns, floors, walls, etc.). Generally speaking, the fire resistance building of level one is a mixed structure of reinforced concrete structure or a mixture of brick wall and steel concrete structure; the fire resistance building of level two is a mixed structure of steel truss structure, reinforced concrete column and brick wall; the fire resistance building of level three is brick-wood structure made of wood roof and brick wall; the fire resistance building of level four is combustible structure which is composed of wood roof and non-combustible wall.

Q:Why do magnesium oxide refractory bricks can be made into refractories?: Nature: It is loose white powder and tasteless. When exposed to the air, it is easy to absorb moisture and carbon dioxide. It is dissolved in acid and ammonium salt and insoluble in water and ethanol, with the melting point of 2800 and the boiling point of 3600. The magnesium oxide has high fire-resistance insulation properties, with high melting point . It can be said to be non-combustible materials.

Q:What kind of refractory materials are used in the intermediate frequency furnace?The domestic boric acid can be used as a lining?, how much is the rate?: The variety of refractory materials for intermediate frequency furnace is mainly made of aluminum and silicon, both shaped and unshaped refractory materials are available. I have no ideas what you said boric acid, I’ve never seen that boric acid was used as an additive.

Q:what are the requirements of fireproofing material?: answer: 1 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. 2, fireproof?panel is the most common texture in the market. There are two common types: One is the high pressure decorating refractory slab, it's advantages are fireproofing,moisture-proof, wear-resistant, oil resistant, easy to clean, and it has various colors; another one is glass magnesium fireproof board, external layer is decoration materials, and inner layer is mineral magnesium fireproofing material, and it can endure 1500 degrees high temperature but has bad decoration. Installing fireproof suspended?ceiling in outlet channel of construction, stairwell and corridor can ensure safe evacuation of people and protect people from attacking of fire spreading in the disaster. 3, the production process of fire and moth proof wood: firstly, put general wooden materials into solution with calcium, aluminum and other cations, then soak it into solution with phosphate radical, silicate and other anions. Thus, the two ions will be carried out chemical reaction in the wood, forming a ceramic-like material, and intimately fill the voids of cells, so that the wood has the fireproofing and mothproof properties.

Q:What kind of material is good for cabinet fireproof board: What kind of material is good for cabinet fireproof board What are the advantages and disadvantages of using it? How much is the price? A about how much does one piece cost?

Q:How to determine the fire resistance rating of the aluminium-plastic?panel?: Class A incombustible and thermal insulation material: inorganic active wall thermal insulation material, cement foam insulation board, glass bead thermal mortar, rock wool board, glass wool board, foam ceramics, etc. With many characteristics of low density, low thermal conductivity, high pressure bearing capacity, convenience of construction, economy and durability, A class incombustible material is widely used as thermal insulation material for heat pipelines, thermal equipment, other industrial pipe-line equipment and industrial buildings, and thermal insualtion and sound absorption material for the building envelop of industrial and civil buildings. Because of good thermal stability, it is more often used as fire-proof and protective coating material of the steel structure.

Q:What are the commonly used admixture for alumina-magnesia refractory? What are the impacts on its performance?: 2, form Mg-SiO2 coagulation and combination, CA cement bond? Bricks can generally be made by combing with phenolic resin, castable use 1, combined with silicon powder; 3, can also combined with brine MgCl is binding agent

Q:I wanna ask about the thermal insulation material fire resistant level?: 1. The thermal insulation material of level A combustion performance: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3, combustion performance is level B2 insulation material: Molding polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. See the 2009 edition construction technical measures 4.3.6 Level A insulation material is only for fireproofing, but its thermal insulation performance is not better than organic XPS \\ EPS and other materials. Thanks

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