High Alumina Lightweight Insulating Brick

High Alumina Lightweight Insulating Brick System 1

High Alumina Lightweight Insulating Brick

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Specifications

1.Lightweight Mullite insulating brick
2.Manufacturer
3.ISO9001&CE
4.20 years experience of producing,researching,exporting

Lightweight mulite insulating brick

Lightweight mullite insulating brick
Density: 0.6-0.8g/cm3
Temperature: 1350-1550 degree
Al2O3: 45-60%
Stand Size: 230x114x65/75mm

Raw material of Lightweight mullite insulating brick:

JM insulating brick, using high pure mullite as raw material, is made by adding alumina powder according to different type and then sintered at high temperature. JM insulating brick is the new energy saving material for insulation.

CHARACTERISTIC of Lightweight mullite insulating brick:
Low density
High purity
Low thermal conductivity
Excellent thermal shock resistance

APPLICATION of Lightweight mullite insulating brick:
glass industries iron & steel industries
ceramics industries non-ferrous metals industries
electrolytic Aluminum industries power generation industries
Heat surface fireproof lining other fire-proof back lining

Tech Data of Lightweight mullite insulating brick:

Item	Lightweight Mullite insulating brick
Index/Brand	JM-23	JM-26	JM-28
AL2O3, % ≥	45	52	60
Fe2O3, % ≤	0.8	0.6	0.6
Bulk density g/cm3	0.8	0.9	0.9-1.0
Cold crushing strength MPa	2.1-3.0	3.0-4.0	6.0-7.0
Linear change after heating%(155O°C × 2h)	±0.5	±0.5	±0.8
Thermal conductivity (350°C±25°C)(w/m·k)	0.2-0.25	0.2-0.3	0.2-0.25
Maximum service temperature°C	1350	1450	1550

Lightweight insulating brick

Q: How many cubic bricks does a high alumina brick have?: Different content of aluminum, different proportion, weight is not the same. General grade T3 standard brick, 4.3~4.5kg, aluminium content 75. T3 size 230*114*65mm.

Q: What's the difference between a well type annealing furnace and a box type annealing furnace?: 1. The shell of the furnace is welded by section steel and steel plate. 2, the furnace cover support adopts steel and guide rail combination mobile type. 3. The heating element is made of high resistance alloy 0Cr25Al5 produced by Beijing Shougang Group and arranged on the furnace side. 4, because the bottom bearing adopts high aluminum bricks, the circle center of the furnace set small, inside and outside heating. 5 、 furnace cover adopts hydraulic lifting, motor control, automatic walking. 6 、 temperature control system adopts PID SCR control, high accuracy.

Q: The difference between aluminium refractory and magnesia refractory: Aluminum refractory belongs to neutral refractory material, usually refers to silicon aluminum refractory materials, such as: high alumina brick, clay brick, high alumina castable and other products, the production of raw materials is mainly bauxite.

Q: What is the content of free silica in the refractory bricks of high alumina bricks?: Refractory powders are not rich in free silica in varying degrees

Q: Which is faster for heat transfer between corundum bricks and high alumina bricks?: There must be a difference. They vary in color from the amount of aluminum, the weight, the temperature, and the color.

Q: What is spalling resistant high alumina brick?: Using bauxite as main raw materials, the introduction of a small amount of ZrO2 (ZrO2 is due to phase transition, between monoclinic and tetragonal type can improve the thermal stability of the products), adding a certain amount of binder and additives, the particle size distribution control mud, forming and sintering of refractory products produced, called anti stripping high alumina brick.

Q: Refractory brick, high alumina brick, magnesia chrome brick, magnesia brick, clay brick, which type of high temperature refractory brick?: The super high alumina brick in high alumina refractory brick has the highest refractoriness, and the corresponding production cost is higher.

Q: How to test the aluminium bricks of high alumina refractory bricks?: Before making bricks, the raw materials are usually tested and tested to see if the aluminum content is up to standard

Q: What is the high temperature limit of refractory bricks and refractory soil?: Refractory bricks are stone powder and clay paste. They are fired in a kiln of 1300 degrees. The upper limit is 1500 degrees above normal pressureRefractory bricks - refractory materials of a specified shape and size.

Q: The difference between clay bricks and clay bricks: According to the hole rate: solid brick (no hole or hole rate less than 25% bricks), porous brick (hole rate is equal to or greater than 25%), the size of the hole is small and the number of bricks, usually used in load-bearing parts, higher strength level. Hollow brick (hole rate equal to or greater than 40%, large pore size and small amount of brick, commonly used in non load parts, low strength grade).Solid bricks and porous bricks are mostly used for load-bearing structural walls. Hollow bricks are mostly used in non load bearing structures.

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