High Aluminium Ceramic Fiber Board - Raw Materials for Refractory

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Specifications

high aluminium ceramic fiber board
1.Thermal conductivity low
2.Excellent breaking strength
3.ISO certification

Ceramic fiber board

Type	Ceramic fiber board
Thickness	10-50mm (made as your requirement)
Grade	ST (Standard) /HA (High Aluminum)
Ultimate Strength (≥ MPa)	40Mpa
Length	1200/1000/900/600mm
Width	1000/600/400mm
Color	Pure white
Shrinkage (1800°F, 3h)	-3
Chemical Composition	AL2O3,SiO2
Thermal Conductivity	0.32 W/m.k
Density	250-400kg/m3
Fiber Diameter	3~5μm
Al2O3+SIO2	97%
Thermal Conductivity	0.32 W/m.k
Working Temperature	1260
Min. Order	21 m3 (1x20’FCL)
Shipment	Within 15days after receive trial order
Application	Refractory
Supply Ability	300,000 Pieces/Month
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High aluminium ceramic fiber board index

Type List Item		Common	Standard	High-purity	High- aluminium	Zirconic
Classification Temperature(°C)		1100	1260	1260	1360	1430
Working Temperature(°C)		1000	1050	1100	1200	1350
Color		White	White	White	White	White
Volume Density(kg/m³)		96,128	96,128	96,128	128,160	128,160
Permanent Linear Contrative(%) (insulation 24 hours volume density 128kg/m³)		-4 (1000°C)	-3 (1000°C)	-3 (1100°C)	-3 (1250°C)	-3 (1350°C)
Each Heat Surface Temperature Of The Thermal Conductivity(W/M.K) (density 128kg/m³)		0.09(400°C) 0.176(800°C)	0.09(400°C) 0.176(800°C)	0.09(400°C) 0.176(800°C) 0.22(1000°C)	0.132(600°C) 0.22(1000°C)	0.76(600°C) 0.22(1000°C)
Tensile Strength (Mpa) (density 128kg/m³)		0.08—0.12	0.08—0.12	0.08—0.12	0.08—0.12	0.08—0.12
Chemical Composition(%)	AI2O3	44	46	47-49	52-55	39-40
	AI2O3+SIO2	96	97	99	99	-
	AI2O3+SIO2+ZrO2	-	-	-	-	99
	ZrO2	-	-	-	-	15-17
	Fe2O3	<1.2	<1.0	0.2	0.2	0.2
	Na2O+K2O	<0.5	< 0.5	0.2	0.2	0.2
Product Size(mm)		720061010-50;

High Aluminium Ceramic Fiber Board

Q: What are the fire protection standards of insulation materials?: According to the three versions of GB8624 (1997,2006,2011), the fire rating of external walls can be basically divided into: A1-, A2-, B1-, B2-, B3-level. The detailed divisions are determined by many technical indicators. It is a very professional and technical long story. Please contact QINGDAO SHANFANG INSTRUMENT CO., LTD for detail information, they are specialized in manufacturing fire rating testing instruments of external walls.

Q: Who knows what is the standard of insulation material whose fire proof is level A?: Fire insulation materials of level A is non combustible building materials, and does not have any burning material. Level A1: single inorganic non combustible, no open flame. Level A2: A2 level: composite organic non combustible, that is, composite materials, non flammable, smoke volume should reach the standard.

Q: Which brand of thermal insulating refractory is good?: The most famous is the dragon, Morgan, Luyang, which are good at making ordinary thermal insulation materials and whose products are cheap but quality. Refractories are non-metallic materials with good resistance against thermal shock and chemical erosion, low heat conductivity coefficient and expansion coefficient. It requires high temperature resistance in nature. It is difficult to transport suc materials in silicious thermal insulation board production base. Silicious thermal insulation board is a kind of thermal insulation material during casting process. Raw materials are non-porous refractory?aggregate, porous refractory?aggregate, organic fiber and inorganic fiber.

Q: What is the difference between wear-resistant material and refractory material?: Focus is different. Wear-resistant material may or may not be refractory. Such as, aluminum oxide ceramics is both refractory and wear-resistant, and many organic wear-resisting materials are wear-resistant but not fire-resistant. First, refractory material should be refractory. It should be wear-resistant in special cases. High-temperature fluidized bed, trough, etc. need refractory material with high strength and good wear resistance.

Q: Who knows about the criteria of fireproof and thermal insulation materials?: The standards of fireproof and thermal insulation material. 1. the height of buildings is greater than or equal to 100 m, the combustion performance of thermal insulation materials should be A-level; 2. the height of buildings is greater than or equal 60 m but less than 100 m, the combustion performance of thermal insulation materials should be no less than B2-level. When using B2-level thermal insulation materials, fire barrier zone should be set in each floor; 3. the height of buildings is greater than or equal to 24 m but less than 60 m, the combustion performance of thermal insulation materials should be no less than B2-level. When using B2-level thermal insulation materials, fire barrier zone should be set in every two floors; 4, the height of buildings is less than 24 m, the combustion performance of thermal insulation materials should be no less than B2-level. When using B2-level thermal insulation materials, fire barrier zone should be set in every three floors.

Q: Who knows that among refractory materials, insulation boards from which refractory material industry is superior in quality?: When casting ingot, after high temperature molten steel is poured into ingot mold, molten steel keeps shrinking during cooling, for example, killed steel is shrinking 3% --5%. because of fast heat dissipation of ingot head , some shrinkage holes appear at the head of ingot. Therefore, you should cut shrinkage holes which account for more than 15% of the ingot quality in the head while cutting steel ingot cogging. If effective measures were taken to insulate the head of ingot from heat, then the coagulation time of ingot head would lag behind in the body of the ingot solidification, which will greatly shrinkage holes, improve ingot yield so as to reduce energy consumption of steelmaking. Adiabatic plate can achieve this purpose. China Heng insulation board has the advantages of uplifting adiabaticity and small heat capacity, so that it greatly reduced heat loss of molten steel, And the tundish can be directly put into use without preheating, thereby saving a large amount of preheating fuel. So in the current process of continuous casting, the heat insulation board is the main material of tundish lining.

Q: What material is used to make furnace pipe of refractory bricks?: Refractory bricks furnace pipe material is generally divided into two types, namely, shapeless refractory material and shaped refractory. Shapeless refractory material, also known as castable refractory, is hybrid powder material made up of many kinds of aggregate or aggregate and a kind of or many kinds of binders. It must cooperate and evenly stir with a kind or many kinds of liquids during use and has strong mobility. Shaped refractory material usually refers to refractory brick whose shape has standard rules. It can also be proceeded temporarily during cutting according to requirement.

Q: What is high alumina refractory?: It refers to inorganic non-metallic material with refractoriness of higher than 1580℃. Refractoriness refers to the celsius temperature that the cone-shaped refractory sample without load can resist, and under which the sample won't soften and melt down. Refractory material appears together with high temperature technology, and roughly dates from the Middle Bronze age. In the Eastern Han Dynasty (AD25~AD220) of China, fireclay refractories has been used as furnace refractories and saggers for making porcelains. In the early 20th century, refractory material develops toward the direction of high purity, high dense and ultra high temperature products, and meanwhile unshaped refractory and refractory fiber with no need of firing at all and with low energy consumption appear.

Q: What does refractory mean?: Acid refractory material usually refers to refractories with SiO2 content greater than 93%. Its main characteristic is that it can resist acid slag corrosion at high temperature, but it is easy to react with alkaline slag.

Q: Is there anyone who can explain how to grade the level of fire insulation board?: The classification of fire proof level for thermal insulating material 1, Burning performance of building material can be classified into the following several grade according to national standard GB8624-97: Non combustible building materials: Non-conbustible material. Class B1: Refractory building materials: Flame retardant materials have good flame retardant effect.

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