High Alumina Refractory Cement

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Product Description:

Specifications

Refractory Cement
high alumia refractory
1.Quick hardening and early strengthening
2.Good quality with competitive price

High Alumina Refractory Cement  

Product Description

Applications

1.Used as building refractory cement.

2.Furnaces lining material of metallurgy industry, heat treatment furnace.

3.Furnace lining material of incineration of garbage, recirculating fluidized bed furnace.

4.Furnaces lining material of chemical industry and construction industry.

Typical Features:

1.Low thermal conductivity, excellent thermal insulation, low liner shrinkage.

2.Good integrity with furnace lining, long service life, easy operation, could be shaped freely.

3.Allow direct contact of fire, suitable for various atmosphere.

4.High strength and good thermal shock resistance.

Specifications:

Item

Unit

75% Alumina Index

40% Alumina Index

Al2O3

%

≥75

≥40

CaO

%

≥2.5

Bulk density            

110°C×24h

g/cm3

≥2.65

≥2.3

1100°C×3h

g/cm3

≥2.65

≥2.3

Crushing strength            

110°C×24h

Mpa

≥45

≥40

1500°C×3h

Mpa

≥70

≥60

Rupture strength

110°C×24h

Mpa

≥6

≥6

1500°C×3h

Mpa

≥10

≥8

Linear change rate at 1100°C

%

-0.1~-0.5

±0.5

Highest Application Temperature

°C

1500

1350


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Q:What's the feature of construction external wall fireproof and thermal inuslation matertial?
Building external wall fireproof thermal insulation material is made by stirring, casting, foam protecting and cutting with industrial by-product gypsum as the main raw material, adding sulphate aluminium cement, fly-ash, polymer additives and other materials. It has excellent properties of respiratory function , air permeability, water impermeability, recycling system data, wind load resistance, shock resistance, thermal insulation, fireproof and sound insulation.
Q:Does the aluminum silicate fiber can be used outdoors? If not, what other refractories can be used outdoors?
Q:What are the applications of refractory in petroleum?
It can be used in transportation of natural gas, filler of chemical equipment, security, insulation or even building materials.
Q:How to detect the acid resistance of refractory? Is there any standard? Thank you
There is a standard. However, the range what you said is a little big, it's difficult for me to say. But though the scope is a bit big, it should be: You can check the industry standard network, to see whether you can check it.
Q:Can anyone tell me what is a high alumina refractory?
High alumina refractories: High-alumina refractory products have high refractoriness, compressive strength and refractoriness under load, which are used for building the high-temperature parts of various large blast furnaces, such steelmaking furnace, airheater, electric furnace, rotary kiln and other thermal equipment.
Q:How to divide fire resistant level of fire door?
The classification of fire resistant level of fire door: Grade A is not less than 1.2h. Grade B is not less than 0.9h. Grade C is not less than 0.6h. It is suitable for fire door with different levels: Grade A: Equipment room (such as fire-pump room,power distribution room, generator room, smoke control fan room, etc) door, fire compartment, door on firewall; Grade B: Eclosed staircase, front door of stair room, smoke-proof staircase and fire elevator share lobby door, front door of fire elevator, household door which directly opens to front room or shares room; Grade C: The vertical shaft door, such as strong electric wells, weak electric wells, pipe shaft door and air conditioning facilities. I hope this information can help you.
Q:Does anyone know what is a lightweight refractory material?
Light weighted castable is one of the kind.
Q:What is the material of fire resistant glass reinforced plastics grating?
What is the material of fire resistant glass reinforced plastics grating?
Q:What are the specifications of refractory kilns ?
There several points need to be noted ① selection of body material. The refractory lining of the front kilneye turns gelid and hot rapidly and frequently, so the temperature is in the range of 800 ℃ ~ 1250 ℃, allowing it to withstand wear of the cement clinker and corrosion of the cement base. The body material of castable refractory must be chosen according to its service conditions, in order to ensure that it is cheap and easy to use. ② the selection of admixture. Shapeless refractory materials are typical in-situ reaction refractories. Therefore choosing admixtures is very important and must ensure workability, baking performance, and excellent material properties. Admixture for Kiln refractory castable includes dispersants, accelerators, plasticizers, sintering agent, bulking agent and antidetonant. Materials of sintering agent are animate clay, zirconite, titanium dioxide and Peng compounds. Such substances produce a certain amount of mullite crystals, zircon phase, titanium aluminate crystal and inconsistent melting compounds (2Al2O3 • B2O3), etc. under the operating temperature and in situ reaction. They are accompanied by volume expansion and microcracks, enabling it to compensate for the sintering shrinkage, so that the casting material can have sintering strength, corrosion resistance and good thermal shock resistance. In summary, the refractory castable material for the rotary kiln shall be determined in accordance with its service conditions. It is recommended that clients should also communicate with technical personnels and sales staff about some facts of the rotary kiln when buying it, so that they can get the satisfying rotary kiln.
Q:What a blast furnace refractories generally?
Common refractories often use silica brick, semi-silica brick, fireclay brick, high alumina brick, magnesia brick, etc. special materials often used are AZS brick, corundum brick, directly bonded magnesia-chrome brick, carborundum brick, silicon nitride bonded silicon carbide bricks, nitrides, silicides, sulfides, borides, carbides and other non-oxide refractory materials; calcium oxide, chromium oxide, aluminum oxide, magnesium oxide, beryllium oxide refractory insulating refractory frequently used. material diatomite products, asbestos products, insulation boards. monolithic refractories have fettling frequently used, refractory ramming mixes, refractory castable, fire-resistant plastic, refractory clay, refractory gunning refractory projection material, refractory coatings, lightweight refractory castable, stemming etc.

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