High Temperature Refractory Raw Materials Castable

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Specifications

1. Good construction performance
2. High strength stability
3. High temperature resistance
4. Good resistance to abrasion

Refractory Castable Features:

1.Good construction performance.

2.High strength, good bulk stability.

3.Good insulation, high temperature resistance, good thermal shock resistance.

4.Good slag resistance, good resistance to abrasion.

5.Good corrosion resistance.Scouring resistance

Refractory Castable Application:

1.Used as lining turning kiln, hot converter lining heat treatment furnace.

2.Furnaces of metallurgy industry, chemical industry and construction industry.

3.Circulation part of furnaces.

Physical and chemical index:

Item		Properties
Item		DLG-80	DLG-70	DLG-60	DLG-50
Al2O3%		≥80	≥70	≥60	≥50
CaO%		≥2.5	≥2.5	≥2.5	≥2.5
Bulk density,g/cm3	110°C×24h Drying after	≥2.75	≥2.60	≥2.50	≥2.40
Bulk density,g/cm3	1500°C×3h After burn with fire	≥2.70	≥2.60	≥2.40	≥2.40
Compression strength	110°C×24h Drying after	≥45	≥45	≥40	≥40
MPa	1500°C×3h After burn with fire	≥75	≥70	≥60	≥60
The flexural strength	110°C×24h Drying after	≥7	≥6	≥6	≥6
MPa	1500°C×3h After burn with fire	≥10	≥10	≥8	≥8
Line rate %	110°C×24h Drying after	≤-0.1	≤-0.1	≤-0.1	≤-0.1
Line rate %	1500°C×3h After burn with fire	≤-0.5	≤-0.5	≤-0.5	≤-0.5
Highest using temperature		1600	1500	1450	1400

FACTORY:

$High Temperature Refractory Castable$

Q: what's the varieties of fire-proof?sealing?material?: ATD-AB, organic fire-proof caulking, fire retardant bag, fire retardant net, fire retardant ring, fire barrier wrap, fireproofing sealing strip, flexibility fireproofing coiled material, fireproof glue, etc., fireproofing sealing materials currently on the market can be divided into two types, one is the traditional type: flexible organic caulking, WXY-II, fire retardant bag, fire?bulkhead, cable refractory coating; there are some new materials used in large-scale projects: fireproofing coating board system (fireproofing coating board, intumescent fireproof sealing tape, elastic fireproof sealant, Waterborne Fire-retardant Coating), fire retardant module system (fire retardant module, sealing gum, cable refractory coating), fireproofing plaster system (fireproofing plaster, sealing gum, cable refractory coating).

Q: What are the characteristics of thealuminium oxide refractory?: Physical properties of refractories include structural properties, thermal properties, mechanical properties, performance and job performance. The structural properties of refractories include porosity, bulk density, water absorption, air permeability and pore size distribution. The thermal properties of refractories include thermal conductivity, thermal expansion coefficient, specific heat, heat capacity, thermal diffusivity and thermal emission rate, ect. Mechanical properties of refractories include compressive strength, tensile strength, flexural strength, torsional strength, shear strength, impact strength, abrasion resistance, creep resistance, adhesive strength and modulus of elasticity, ect.

Q: what kind of fireproof materials is used for high rise buildings?: Recommended thickness of 1mm or more # 304 stainless steel, refractory, corrosion-resistant, easy to clean. closed balcony of high rise buildings use thickened manganese, aluminum profiles. You can also use plastic steel window, solid wooden windows. Mg-Mn alloys have excellent weldability and corrosion resistance, unstressed corrosion tendency. Mechanical properties are not good enough, the ultimate strength of 210 ~ 280MPa.

Q: What is the concept of lightweight refractory material?: Lightweight refractory material has high porosity, mechanical strength and erosion resistance. Compared with normal refractory bricks, it is a kind of refractory material with large volume shrinkage in high temperature, low thermal conductivity and small bulk density. It is used as thermal insulation material in industrial furnace and other thermal equipments. It has poor wear resistancel.

Q: What's the classification of refractory material?: Magnesium aluminum is complex and mainly seeing what classification standard is like according to the appearance shape can be divided into two categories, setting and not setting according to the acid alkali can be divided into acidic, magnesia, high aluminum, ramming expected, spinel, spray coating, plastic, just the quality of the jade, daub material according to the chemical composition is divided into, such as clay, neutral and alkaline according to the operation mode can be divided into different castable, magnesium, calcium, magnesium chrome

Q: How long is the duration of fire resistance that fireproof door of level B can endure?: Level B refers to the fire resistance rating and different hours in fireproofing of the fireproof door. Fireproof door of level A can endure fire for 1.5 hours while level B 1.2 hours

Q: What material is used to make furnace pipe of refractory bricks?: Refractory brick is called refractory?brick for short. It is a kind of refractory material fired by using refractory clay or other refractory materials. Faint yellow or brownish. It is mainly used in building smelting furnace and has resistance to high temperature 1,580 ℃ -1,770 ℃. Also known as refractory?brick. It is refractory material with a certain shape and size. It can be divided into burnt brick, unburned?brick, fused brick (fused cast brick), fire-resistant insulation brick according to preparation technics; It can be divided into standard brick, ordinary brick and special-shaped brick, etc according to shape and size. It can be used as high-temperature building material and structural material of building kiln and all kinds of thermal equipment. It can also withstand a variety of physical and chemical changes and mechanical action under high temperatures. For example, fireclay brick, high alumina brick, silica?brick, magnesia brick, etc.

Q: Who knows the fire endurance of B-level fireproof doors and windows?: B-grade fireproof windows refer to those fireproof windows whose fire retardant limit is not less than 1 hour. Technical requirements: I. Materials and Accessories (1) Window frame should have a certain strength to ensure the integrity and stability of the steel frame or the wood frame. (2) Steel frame and mound layer can employ galvanized?steel?sheet or stainless steel plate. Its selection criteria should be in line with the stipulation of the Article 5.1 of GB12955 "General Technical Requirements of Steel Fireproof Doors". (3) The selection standard of wood frame and mound layer should be in line with the provision of Article 5.1.1 of GB14101 "General Technical Requirements of Wooden Fireproof Doors". (4) Filling materials inside steel frame and wood frame should be non-combustible materials.

Q: What's the A class fireproof and thermal inuslation matertial for external wall?: It is roughly divided into thermal insulation mortar, phenolic foam board, rock wool board, foamed cement board, etc. Insulation mortar is quite good for its simple construction, convenience and low cost, but its production is too simple to make fake products easily. If you want to use the material, it is suggested to find a large plant with complete procedures such as provincal records of production and use, city records, test report above provincial levels, national fire inspection report, design drawings sheets of Department of Construction, etc. If there is lack of any one, it is unsafe. Hope my answer is helpful for you.

Q: How is the development of Xinmi refractories industry? What's its advantages and disadvantages?: The disadvantage is too small yard, vicious competition among each other and confusion in the market, which should be the inferiority of national refractory industry . Xinmi Refractory is well developed in recent years, mostly acidic and neutral refractories. It is still relatively rare to use in iron parts, steel pile with a satin and other basic refractory slide .

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