High Aluminium Ceramic Fiber Board - Raw Materials for Refractory

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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 technical requirements for refractories?: How high the temperature is and what is this refractory?

Q:For refractory knowledge. What is the ratio of clay ramming?mass?: Soil aggregates, dispersing agent, water reducing agent, plasticizer, binding agent and powder! ~ Bone meal feed approximately 6, OK

Q:What does the function of SiC for refractories?: Anti-wear! High intensity!

Q:What are the requirements for the performance of refractory materials?: Electric furnace bottom and furnace slope and the wield pool should be magnesia whole knotting, magnesia carbon brick and tar magnesia brick; hot and slag line area, using high-quality magnesia-carbon brick; Brick on both sides of the furnance door should be tapping El magnesia brick, magnesite chrome brick; electric furnace cover should be high alumina brick and high alumina bricks.

Q:About the use of horseshoe glass kiln refractories: the lower portion of advanced clay brick, the lower portion of magnesia-chrome brick arch - high-purity silica brick; flue - clay brick; breast wall--33 # fused zirconia corundum brick (with shrinkage); fused zirconia bottom --33 # fused zirconia corundum brick (with shrinkage); regenerative chamber- the upper part of sintered magnesia-chrome brick, cooling section 33 # electric?smelting no shrinkage fused zirconia corundum brick; the wall - the melting section 41 # no shrinkage fused zirconia corundum brick (including 41% of zirconium; the lattice- superstructure of high purity magnesia brick, the same below); small stove --33 # fused zirconia corundum brick (with shrinkage). It can be said that it is the maximum configuration, if the funds is limited it can be downshift appropriately.

Q:How to solve the shell, the crack problem of refractory material in the process of forming.: Pressure mode and number of pressure control "spallation". 2, multiple pressure, pressure degree and discharge way: 1, reduce friction, choose appropriate, than big pressure disposable pressure produced by the plastic deformation, allocate reasonable grading, internal and external friction, reduce billet particles and high die wall bright. 4.--- solve the light one firstly. --moisture content being too high easily cause spallation - the compressibility of water is small and have certain elasticity, appropriately to extend the pressuring time is beneficial. The material can produce large plastic deformation under the effect of continuous load. The right amount of lubricant. - body under the condition of less pressure but long effect time molding. Mould structure is reasonable and improve billet natural stacking density. 5.3, measures to improve the unburned brick molding quality. Many times continuously pressure relief is better than one-off sudden unloading, and controlling the appropriate moisture content;- - is beneficial to air overflow.

Q:Development trend of refractories: Mullite Matrix clinker. There are higher requirements of kaolin and refractory annded life, it should be able to grind medical industrial raw materials alumina, vacuum extrusion molding, high temperature roasting and smelting from unshaped refractory material a good thermal mechanical properties in the kiln and has good application prospect; 2, Dong Qingshi clinker. With kaolin and magnesia as raw materials, wet grinding, vacuum extrusion, and then high temperature calcination, furniture has a very good prospect; 3, magnesium calcium sand. Because of the development of clean steel, low carbon steel, high oxygen steel and stainless steel, the basic importance of free calcium oxide refractories is supported; 4, fused eutectic composite. Bauxite based fused corundum, bauxite based fused mullite, bauxite based fused mullite zirconia, fused corundum zirconia fused zirconia, Magnesium Oxide and other materials have been developing rapidly; 5, high density spherical hollow mullite aggregate. The wall thickness of the shell of the 0.2 - 1.5 - 5 mm, diameter 40 mm, smooth surface, can not be uniform, spherical shell, this may be a double, a prominent part of the surface can be dense, can also be used for hollow casting material, not only can improve the insulation performance of the material, in order to reduce the volume density. Instead of destroying its strength.

Q:Does refractory belong to stone, building materials or other?: Refractories belong to organic non-metallic materials, stone and construction materials. After it is used in building. Just for your reference.

Q:What is the mechanism of the errosion of the iron to the refractories?: For example, the effect of the iron oxide: Mo corundum given temperature Fe2O3 solid solubility limit of the solid solution formed of corundum stone high solubility than the solid solution Mo Mo corundum lattice shape so Fe2O3Al2O3-SiO2-based material starts melting temperature of the system or the content of Al2O3 and Al2O3 / SiO2 ratio off Al2O3 / SiO2 & lt; 2.55 starting melting temperature of 1380 ℃ when Al2O3 / SiO2 & gt; 2.55 start melting temperature is increased 1460 ℃ and with its Al2O3 content increased gradually to increase the original atmosphere Fe2O3 original FeO off the solvent into the glass phase and the system starts melting temperature drops do not fall to 1240 ℃ 1380 ℃. Lower the melting point, increase the erosion, and reduce the life span.

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