$High Quality Alumina Cement Raw Materials for Refractory Boiler Cement System 1$
$High Quality Alumina Cement Raw Materials for Refractory Boiler Cement System 2$

$High Quality Alumina Cement Raw Materials for Refractory Boiler Cement$

$High Quality Alumina Cement Raw Materials for Refractory Boiler Cement System 1$

$High Quality Alumina Cement Raw Materials for Refractory Boiler Cement System 2$

High Quality Alumina Cement Raw Materials for Refractory Boiler Cement

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 2000 m.t./month

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Packaging & Delivery

Packaging Details:	Refractory Cement packing: uauslly bags within ton bag, or according to client's request.
Delivery Detail:	10-30 days according to the quantity

High Quality Alumina Cement Refractory Cement For Boiler

Product Description

Refractory Alumina Cement

Description of alumina cement

Refractory cement is a kind of the refractory material use high quality corundum, alumina magnesia spinel and fused magnetite as raw materials, this refractory mate-

rial is characterized of resistance of high temperature, resistance of erode and

emersion, long life used. What's more, it can be made difference kinds of ladle as your request

Items	silicon refractory mortar
refractory temperature	1700
bonding time	1~2 minutes
refractory under load, 0.2Mp	1600
SiO2 content	≥96%
particle size	0.075mm ≥60, 0.5mm ≤1

Physical and chemical index of alumina cement

Ordinary refractory cement CA50

Product Performance		CA50-1	CA50-2	CA50-3
mineral phase composition	main crystal phase	CA
	secondary crystal phase	CA2,C12A7, CT, C2AS
specific surface area(m2/kg)		≥300
condensation (minute)	preliminary condensation	≥30
	final condensation	≤360
bending strength (Mpa)	24hours	5.5	6	6.5
	72 hours	6.5	7	7.5
compressive strength (Mpa)	24 hours	40	45	50
	72 hours	50	55	60
application		used as binder to make traditional unshaped refractory material (concrete, refractory gunning material, etc)

High-grade refractory cement CA50

ProductPerformance		CA50-1	CA50-2	CA50- 3
mineral phase composition	main crystal phase	CA	CA	CA
mineral phase composition	Secondary crystal phase	CA2, C2AS	C12A7, C2AS	C12A7, C2AS
specific surface area(m2/kg)		≥400	≥350	≥400
condensation (minute)	preliminary condensation	≥90	≥30	≥120
condensation (minute)	final condensation	≤360	≤360	≤480
bending strength (Mpa)	6-8hours	-	4	4
	24 hours	8	6	10
	72 hours	10	7	11
compressive strength (Mpa)	6-8hours	-	30	30
	24 hours	70	50	75
	72 hours	80	60	80
application		used as binder to make special unshaped refractory material

$High Quality Alumina Cement Refractory Cement For Boiler$

Q: Can anyone tell me what is A-leve fireproof material?: Combustion performance of materials can be divided into: A-level, B1-level, B2-level and B3-level, which respectively refer to noncombustible, difficult-flammble, flammable and inflammable materials. Building materials can be divided into four grades based on combustion performance (noninflammability, flame retardancy, flammability and inflammability). According to the stipulation of "Specification of Fireproof Design for Buildings" (GBJ16-1987) (2001 revised edition), fire hazard of production or storage should be divided into A-level, B-level, C-level, D-level and E-level. In "Specifications on Fireproof Design for Petrochemical Enterprises" (GB50160--1992) (1999 Revision), it also stipulates that fire hazard should be classified on the same basis of subtsance danger in usage, production or storage. According to different fire hazard, requirements and measures of oreventing and restricting fire explosion can be put forward from the aspects of fire?separation distance, fire resistant rating of buildings, allowed floors, safe evacuation, fire fighting facilities and other aspects.

Q: The fire prevention board line is made of what material?: (1) if it's real wood floor, the line should be made of wood. The ready-made wooden line, walnuts, price range depends on the texture width. The common width is 100 mm. One linear meter is around $17 - $30. Paulownia is cheaper with one linear meter more than 10 yuan. When it is composite wood floor, high-density plate modelling line can be used. The price is commonly between 40 to 80 yuan (2400 x 1200 mm), which depends on the thickness and density and also the factory. There are also imitated wooden aluminium line. (3) if it's the marble ground, you would better use marble line, which is 200 yuan one square meter. It's price is also unequal. The imitated stone is also available. There are a lot of kicking decoration materials and it depends on how you use it. That is to say crural line should be coordinate with the ground. It means that it sjould not only to be beautiful but also to be practical. It would be better if it is relatively cheap as well.

Q: Is fireclay poisonous?: Refractory materials are typically oxides, alumina, magnesium oxide and aluminate cement and etc, which are non-toxic.

Q: What are the qualifications of refractory industry?: Special qualification issued by Fire department

Q: How much is the duration of fire resistance of the porous brick shale?: It depends on its formula since the highest temperature varies from formula. For example, the temperature of common bricks is 900℃, if the lime in it accounts for most part, then the temperature could reach 1050℃; if coal ash accounts for over 40%--50%, then the temperature could amount 1050℃--1150℃.

Q: How to make fire resistant materials for building stoves: Legend of the old version has been upgraded, or can not enter the server, is not legend stopped?

Q: I would like to ask a friend that how much is the fire endurance of level A fireproofing glass?: the fire endurance of fire window is: class A window is not less than 1.2 hours, class B window is not less than 0.9 hours, Class C window is not less than 0.6 hour. technical requirements: 1, materials and accessories (1) the window frame is made by a certain strength of steel frame or wooden frame which is sufficient to safeguard the integrity and stability. (2) steel frame and mound layer can select galvanized?steel?sheet or stainless steel plate. Its selection standards should be in line with the provisions of Article 5.1. in GB12955 "Steel Fireproof Door General Technical Condition" (3) the selection standards of wood frame and mound layer should be consistent with the provisions of Article 5.1.1. in GB14101 "General Technical Conditions of Wooden Fireproof Door" (4 ) the inner filling material of steel and wood frame should be non-combustible material. (5) fireproofing glass can choose the qualified products in fire resistance test and not affecting the fire windows. light transmittance of glass is not less than 75% of identical layers of ordinary plate glass. ( 6) a sealing material between the frame and the fireproofing glass should use the nonflammable material, it can play the role of fireproofing and smoke insulation in the fire disaster. I hope I can help you

Q: What does refractory mean?: Ordinary refractories are often used brick, semisilica brick, clay brick, high alumina brick, magnesia brick etc..Special materials often use AZS brick, corundum brick, magnesia chrome brick, silicon carbide, silicon nitride bonded silicon carbide, nitrides, silicides, sulfide, boride, carbide and other non oxide refractory materials; calcium oxide, chromium oxide, alumina, Magnesium Oxide, beryllium and other refractory materials. Often used insulation refractories are diatomite products, asbestos products, insulation panels and so onUnshaped refractory materials commonly used are fettling, refractory ramming material, refractory castable, refractory plastic material, refractory clay, refractory gunning, refractory cast material, fireproof coating, lightweight castable, mud etc..

Q: What parts of cement kilns are refractories used on?: Generally they are used in cyclone, feed pipe, and duct and refractories are high-strength alkali-resistant castable, calcium silicate board, high-strength alkali-resistant brick, dome-shaped alkali resistant brick. Refractories in smoke chamber are high-alumina refractory castable, anti-skinning pouring material and calcium silicate board. Refractories in duct are high-strength alkali-resistant bricks, calcium silicate boards and steel fiber reinforced castable. Refractories in hooding parts of kiln are high strength castable high alumina and calcium silicate board. Refractories in rotary kiln are phosphate bonded high alumina brick, silmo brick, magnesia chrome brick, steel fiber reinforced castable. Refractories in grate?cooler are vault alkali brick, high alumina refractory castable, steel fiber reinforced castable and calcium silicate board. Refractory in coal burner is dedicated castable for coal burner.

Q: Who can tell me the properties and classification of insulating refractories?: Burn out addition method. This method is sawdust or combustible additives into mud. Sublimation mixing and extrusion method, semi dry or slurry casting moulding, drying and sintering. Combustible or sublimation additives in the firing process of burned, leaving the empty hole, become insulating refractory products.

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