$Raw Materials for High Quality Refractory Castable for Cement (Low Iron) System 1$

$Raw Materials for High Quality Refractory Castable for Cement (Low Iron)$

$Raw Materials for High Quality Refractory Castable for Cement (Low Iron) System 1$

Raw Materials for High Quality Refractory Castable for Cement (Low Iron)

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Specifications

refractory castable for cement
1) High quality with lowest price
2) Good density, high strength
3) Low cement

Product Description

high quality refractory castable for cement(low iron)

1. Propertities

1) High refractoriness

2) Good density and high strength

3) Low cement with competitive price

4) Good mechanicial performance

5) High quality

2. Application

1) Refractoriness material castable

3. The physical properties

Type Program Index		BM-LN	BM-AHS	BM-AH10	BM-AH15	BM-AH18	BM-SP4
Chemical composition%	Al2O3	>40	>50	>60	>65	>68	-
Chemical composition%	Al2O3+MgO	-	-	-	-	-	70-80
Bulk density (g/cm3)	110°C×16h	>2.25	>2.40	>2.55	>2.60	>2.65	2.8-3.0
Bulk density (g/cm3)	1350°C×3h	>2.20	>2.35	>2.50	>2.55	>2.60	2.8-3.0
Compressive strength (M pa)	110°C×16h	>35	>60	>60	>65	>65	>50
Compressive strength (M pa)	1350°C×3h	>50	>80	>80	>88	>90	>50
Modulus of rupture (M pa)	110°C×16h	>5	>10	>10	>12	>12	>10
Modulus of rupture (M pa)	1350°C×3h	<8	<12	<12	<12	<12	<12
Permanent linear changing rate (%)	110°C×16h	<0.2	<0.1	<0.1	<0.1	<0.1	<0.1
Permanent linear changing rate (%)	1350°C×3h	<0.5	<0.5	<0.5	<0.5	<0.5	<0.5
Water demand (%)		6.5±0.5	6.0±0.5	5.5±0.5	5.0±0.5	5.0±0.5	4.0±0.5
Long-term service temperature(°C)		1350	1350	1350	1350	1350	1350
Maximum service temperature(°C)		1600	1600	1600	1600	1600	1600
Application		Low-temperature furnace roof, walls	All parts	All parts	All parts	All parts	Furnace walls, partsof slag resistance

Packaging & Shipping

25kg bag or ton bag or as your requirement

Our Services

Delivery fast and accurate, high quality, fast reply and good after-service.

FACTORY:

$High Quality Refractory Castable For Cement(Low Iron)$

Q:What's the fire endurance of A grade fireproof glass curtain wall?: An hour and a half, an hour, and half an hour. As a key step in the home fire prevention, fire door is particularly important. According to the fire endurance and heat insulation performance, it can be classified as follows: A class fire door with fire endurance of no less than 1.5h; B class fire door with fire endurance of no less than 1h; C class fire door with fire endurance of no less than 0.5h. We can choose according to different needs, while A class fire door and B class fire door are now commonly used. Fire door has great varieties, and the material it uses is also of wide range. It includes stainless steel fire doors, glass fire doors, steel fire doors, etc. The most important feature of fire door is its fire resistance period. The main difference between A class fire door and B class fire door lies in their fire endurance, of which the former is no less than 1.5h, while the latter is no less than 1h. Difference between A class fire door and B class fire door also lies in their fireproofing material. That is the thickness of the built-in fire prevention board, of which A class fire door is 52mm, while B class fire door is 46mm. Therefore A class fire door obtains longer fire resistance period than that of B class fire door and gains better fireproof performance. A class fire door and B class fire door also differ in the places they are used. A class fire door is generally used in important fire fighting access of machine rooms, warehouses and oil depots, etc. and flammable and explosive public places, while B class fire door is generally used in the ordinary fire fighting access of some ordinary buildings. But B class fire door is more widely used than A class fire door.

Q:How long is the fire endurance of the rock wool board?: When the average temperature reaches 140 degrees Celsius or 180 degrees Celsius, it starts to lose the fire insulation function.

Q:What are the materials of white firebricks?: They are made of baked refractory materials with pale yellow and a little brown on the surface and very cheap. They are mainly used to pile up smelting furnace and can withstand high temperature from 580 degrees Celsius to 770 degrees Celsius. While the firebricks, also called refractory bricks by others, have a certain size and shape. They can be classified according to manufacturing process, namely, the unburned bricks, burnt bricks and electrically fused bricks. Also they can be divided into common bricks, standard bricks and specific bricks according to different size and shape.

Q:Is refractory material harmful to human body?: Chromium oxide is poisonous in alkaline environment, and the gas produced by heating of asphalt, asphalt and refractory material is poisonous............ Go to the real estate company experts, I can think of these

Q:Which brand of refractory fiber hard thermal insulation board is better?: Luyang ceramic fiber semi-hard board is good for it has typically applied major technological performance industrial furnaces backing, wall lining, lining material, electric heating furnace backing lining heat insulation ceramics shuttle kiln, backing lining of tunnel kilnand roller kiln.

Q:What kind of foundry ingot refractory materials are there? Please be more detailed.: This question is a little bit extensive, because there are too much foundry ingot refractory materials.

Q:How to calculate the thickness of choosing refractory? Such as steel ladle should choose what kind of refractory and using what thicknes?: The relative production is lower and material cost is higher, the lining of the refractory is thicker: 1, determine the weight of the refractory material according to the main structure of the bearing capacity, to prevent damage to equipment, fire-proof material damage after the surplus size and thickness of the thermal conductivity of refractory materials, the smaller the effective volume, production output, the cost of materials) to consider the selection of refractory material thickness. 3 from the point of usage (usage cycle, relative usage cycle is longer, because under the condition of invariable in the device's overall dimensions of the refractory lining thickness to determine several basic principles, according to the volume of the weight computation of refractories and refractory thickness, these items must be fully consider the pros and cons before decided. 2 according to maximum temperature that shell can withstand.

Q:What refractories are used in various parts of the blast furnace.: Blast furnace from top to bottom has the throat, hearth staves, waist, bosh, hearth and furnace bottom. the specific structure is as follows: The throat is the first to be affected by the impact and abrasion, generally use high-density alumina bricks. the upper and central portion of temperature furnace is only 400 ~ 800 ℃, the area with high alumina bricks and silicate bricks. The lower part of furnace is subject to erosion and dust erosion alkali metal vapor due to high temperatures, it is required in such case to use high quality clay brick,high alumina brick,carborundum brick,corundum brick that is slag resistance and alkali?resistance, temperature resustant and wearproof. Furnace bosh temperature reached 1400 ~ 1600 ℃, serverly eroded by slag,vapor, flush. so we use carborundum brick and reaction-bonded silicon?carbide?brick. Bosh temperature reaching1600 ~ 1650 ℃, using alumina brick, corundum brick or silicon carbide brick. the temperature of Hearth near the upper portion of the outlet zone at 1700 ~ 2000 ℃, use of silicate bricks and corundum castable graphite filler, silicon carbide bricks. In 1450 Silly twitch bottom temperature sealing die of hunger slander bet phoenix astringent preserved Grade ~ 1500 ℃, use of graphite bricks and microporous carbon bricks, now use more corundum brick, corundum mullite brick and synthetic mullite brick. x26lt;P class x3d "share-btn"x26gt;

Q:what is the material of fixed first rate fire resistant window?: Window frames and fireproofing glass, fire sealing strip, fireproofing glass mound layer, which is infexible fan, and the flexible fans have to plus folding and closing window cleaner. (3) window frames must be integral with the building, using wood or iron to connect the wall. After the installation of the steel frame, the cement mortar must be watered between the window frame and the wall, and it should conserve more than 24 hours before normal use.

Q:who knows the uses of refratories?: Physical properties of refractories include structural properties, thermal properties, mechanical properties, usability and operation. structural properties of refractories include porosity, bulk density, water absorption, air permeability, pore size distribution. Refractory thermal properties include thermal conductivity, thermal expansion coefficiency, specific heat, heat capacity, thermal diffusivity, thermal emissivity. Mechanical properties of refractories include compression strength, tensile strength, anti bending strength, torsional strength, shear strength, impact strength, abrasion resistance, creep property, adhesive strength, modulus of elasticity. Refractories are used in various fields of steel, nonferrous metals, glass, cement, ceramics, petrochemical, machinery, boilers, light industry, power, military and other fields of national economy. They are essential materials that ensures the production run and technological development of the above industries, and play an important role in promoting the developemnt of high temperature industrial production. the usability of refractories include refractoriness, softening temperature under a fixed load, linear?change?on?reheating,thermal shock resistant performance,slag resistance, acid resistance, alkali resistance, hydration resistance, carbon monoxide resistance, conductivity, oxidation resistance.

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