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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
Bulk density	1100°C×3h	g/cm³	≥2.65	≥2.3
Crushing strength	110°C×24h	Mpa	≥45	≥40
Crushing strength	1500°C×3h	Mpa	≥70	≥60
Rupture strength	110°C×24h	Mpa	≥6	≥6
Rupture strength	1500°C×3h	Mpa	≥10	≥8
Linear change rate at 1100°C		%	-0.1~-0.5	±0.5
Highest Application Temperature		°C	1500	1350

$High Alumina Refractory Cement$

Q: I wanna ask that magnesium oxide is refractory?: Magnesium oxide. magnesium oxide has high refractory insulation properties. After above 1000 ℃ high temperature burning, it can be transformed into crystals. And it can be transformed into dead-burned magnesium oxide or sintered magnesia oxide until rising to above 1500 ℃. It has heat-resistant, non-conductive at room temperature and relatively poor thermal conductivity. Magnesium oxide is mainly used for the preparation of ceramic, enamel, refractory crucible and refractory bricks. I hope to help you

Q: How many kinds of A-level fireproof and thermal insulation materials are there?: Please give us some information about the kinds of A-level fireproof and thermal insulation materials in the market.

Q: Who can tell me what is neutral refractory?: Refractories mainly refer to aluminum oxide, chromium oxide and carbon as the main component of refractory materials, such as corundum brick, high alumina brick, and carbon brick. Its characteristic goes to the resistance to both acidic and basic slag. Basic refractories mainly refer to the refractory materials whose mian components are magnesium oxide and calcium oxide, including magnesia bricks, magnesia-alumina bricks, magnesia chrome bricks, dolomite bricks, etc. Basic refractory is good at resisting basic slag erosion.

Q: Does anyone know the difference between refractory and thermal insulation material?: The main difference between insulation bricks and refractory bricks are as follows: 1. Insulation effect The heat conductivity cofficient of insulation bricks is usually 0.2-0.4 (average temperature of 350 ± 25 ℃) w / mk while the heat conductivity coefficient of refractory bricks is 1.0 (average temperature of 350 ± 25 ℃) w / mk or more. Thus it can be seen that the insulation effect of insulation bricks is much better than that of refractory bricks. 2. Refractoriness The refractoriness of insulation bricks is generally below 1,400 degrees centigrade while the refractoriness of refractory bricks is above 1,400 degrees centigrade. 3. Density Insulation bricks are generally light-weight insulation material, and the density is generally 0.8-1.0g / cm3. But the density of refractory bricks is above 2.0g / cm3.

Q: How many types do refractory bricks have? Where the quality of refractory material is best? What is the model?: Sinosteel Luoyang (Luoyang Refractory Material Plant in the past): High alumina(mainly blast furnace), Gongyi. There are also a series of high-tech materials (silicon carbide, carborundum, etc.) a major producer of high alumina; silicious: Resistant material for steel, glass furnace, cement kiln); magnesia. Divide from uses and divide from chemical texture; silicious(glass furnace): Xinmi, Hennan Province, Lengshui River, coke oven, etc.). As for the models, Yixing and Changxing in Jiangsu Province: Haicheng, Liaoning Province; silicious, I do not understand your intentions; magnesia (nonferrous, steel refining; magnesia: High alumina brick; Dashiqiao area! Please put it in detail.

Q: What material is refractory material?: Basic refractory materials, basic refractory, CaO, basic, MgO style alkaline earth oxide. The refractory materials mainly refers to magnesia refractories, dolomitic and lime refractory refractory. Main categories: (1) strongly basic magnesite brick, magnesia carbon brick, limestone and dolomite brick refractory materials;(2) alkalescent magnesia chrome refractories, forsterite refractory, magnalium and magnesia-chrome spinel refractory, basic refractory materials, high-temperature caustic slag, alkaline solvent resistance, strongly acidic slag flux or acidic refractory. The reaction is mainly used in steel furnace such as colour metal smelting furnace and cement kiln.

Q: I am a manufacturer of refractory materials. I would like to receive some orders from abroad. I would like to know what foreign trade companies in Dalian place foreign orders abroad: You don't give a cent to this question, no one will answer it

Q: Who knows about the differences between 3M fireproofing materials and ShiLiDe materials?: ShiLiDe materials are rubbish which can not used in many industries now, because the main materials of which are mineral wool boards. These boards are harmful to human body, will lead to chronic poisoning, and the quality of which is bad! You must pay attention to it! They can not be used in chemical and pharmaceutical plants.

Q: What is refractory cement?: How to use exactly refractory cement? Someone professional advised me to buy this cement. Does it differ a lot from common cement? Is refractory cement expensive?