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

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

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

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

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:For refractory, why is it necessary to store the first mixing materials for some time under proper moisture and temperature?: It is mainly to remove gas form chemical reactions in the pug, give full play to plasticity and binding properties of combined, and store unburned?brick whose cememting agent is phosphoric?acid or aluminium?phosphate for some time under proper moisture and temperature. For example, to avoid the formed bricks in the initial stage of drying and firing form cracking due to hydration of calcium oxide. Mixing materials is to store the first mixing materials for some time under proper moisture and temperature in order to improve the evenness and moldability of pud, such as making the distribution of combined clay and water more even. The length of storing chiefly depends on the process requirements and the characteristics of blanks. For the producing pug of high temperature kiln furnitures, the storing time is longer. The function of storing mxing materials varies with different natures of blanks. For honeycomb ceramics, it is to fully digest calcium oxide in blanks. For storing magnesia brick blanks containing much calcium oxide, it should be stored for some time in proper humidity and temperature.

Q:What dose the fireproof and thermal insulation material include?: It includes A1: Non-combustible inorganic monomer; A2 Non-flammable organic compound, namely composite material; A3 Modified phenolic fireproof materials.

Q:What are included in wall fireproofing material?: External wall thermal insulation materials are divided into A and B according to combustion level. Grade A is incombustible material, while grade B is combustible material. A few years ago, fires in CCTV building and Shenyang hotel resulted from grade B material. Currently grade A is usually used, and some are even cheaper than the grade B material. Grade A is roughly divided into insulation mortar, phenolic board, rock wool board, foam cement board, etc. Insulation mortar is quite good. It is easy and convenient to construct, has low cost, but the production is too simple and it is easy to fake. It is recommend to find a large manufacturer with complete formalities, such as provincial records of production, provincial records of use, city records, type test report at or above the provincial level, national fireproof report and design drawing collection of department of construction. Lack of any is unsafe. It is recommended to use mortar from Hebei Qizheng Haocheng New Building Material Co., Ltd. It is absolutely large manufacturer. MPC thermal mortar produced by it is recommend product of Department of Construction in Hebei Province!

Q:What are the specifications of fire resistant bag?: Mesh number, namely hole number, refers to the hold number in each square inch. 5o mesh refers to 50 holes in each square inch and 500 mesh 500 holes. The larger the mesh number is, the more the holes are. The larger the mesh number is, the smaller the hole aperture is. Generally speaking, mesh number× aperture (microns) = 15000. For example, the aperture of a sieve of 400 mesh is about 38 microns; the aperture of a sieve of 500 mesh is about 30 microns.

Q:What is the interior fireproof thermal insulation material?: polystyrene foam board, glass fiber spraying, polyurethane foam, thermal insulation system of inorganic wall. Use "DY" inorganic active thermal insulation material, have small thermal conductivity, large heat storage coefficient, better strength and achieve better thermal insulation and energy-saving effect when used in wall . Wall should definitely not crack and hollow because of high temperature in summer. It doesn't crack and shed because it is influenced by stress during heat expansion and cold contraction in cold winter.

Q:What's the commonly used refractory material for ladle?: Commonly used types of refractory material for ladle are as follows: high-alumina brick, clay brick, magnesia-carbon brick, aluminum carbon brick, magnesia chrome brick, spinel brick, corundum brick, high alumina castables, aluminum silicon carbide carbon castables, refractory castables for ladles, magnesium castables, magnesia chrome spray coating, dry vibration materials, etc. Hope it's helpful for you!

Q:Where do China and foreign countries do more refractory materials?: Zhengzhou Xinde yuan Refractories Co., the company's products have high alumina brick, clay brick, light insulating brick, wear-resistant pouring material, corundum castable, low cement castable with high strength, impervious material, material, plastic, and self shaping of various grades of cement and unshaped refractory materials. For different industries have antistripping high alumina brick, brick, alkali phosphate brick used in cement industry, boiler industry with various grades of wear-resistant brick, corundum brick, mullite brick and other forming material. Companies adhere to the "product quality for life, enterprise integrity as the foundation", in the fierce market competition, has won the trust and praise of many users. Refractory products are sold throughout the country and exported to Vietnam, India, South Korea, Pakistan, Iran and other Southeast Asian countries and regions.Companies adhering to the "quality first, reputation first, customer first" to the management of physical science, strong technical force, perfect detection means, advanced process equipment, stable product quality as the quality guarantee.

Q:What's the refractory material?: Main components of basic refractory are magnesium oxide and calcium oxide, and magnesia brick is commonly used. For the magnesia brick with magnesium oxide content of more than 80%-85%, it has good resistance to basic slag and scum, and it has higher refractoriness than that of the clay brick and silica?brick. It is mainly applied to the open hearth furnace, oxygen-blown converter, electric furnace, non-ferrous metal smelting equipment and some high-temperature devices.

Q:can slag tailings be used to be the base materials of refractory materials ?: the rest of it can be used as refractory additives. the scale currently used clay bricks to make high-temperature liquid. It is easy to produce large amounts of liquid because of the high iron content, instead of its refractoriness. But it can be used as refractory minaralizer.

Q:What's the requirements of fire-fighting criteria of heat insulating material?: Specific provisions go as the following article 8: roof grassroots adopted duration of fire resistance is the non-combustible component that shouldn't less than 1.00 h's. Its roof insulation materials should not be below B2; Otherwise, the combustion performance of insulating material should not be below the B1 level. Article 9: The junction of the roof and wall, the insulation layer around the opening part of roof should use the grade A thermal insulation material to set level fire-fighting belt that width is not less than 500 mm. Article 10: the roof waterproof membrane or flammable insulation layer should adopt incombustible material to cover.

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