• Refractory Fireclay Brick- RN40 Low Apparent Proposity System 1
Refractory Fireclay Brick- RN40 Low Apparent Proposity

Refractory Fireclay Brick- RN40 Low Apparent Proposity

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
50000 m.t./month

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FIRE CLAY BRICK---RN40

CMAX fireclay bricks are made from clinker clay. The alumina content ranges from 36% to 48%.

Application
CMAX fireclay bricks are commonly applied in blast furnace, hot blast furnace, teeming ladle, glass furnace, etc.

Features
Low thermal conductivity High refractoriness
High mechanical strength Excellent thermal shock resistance

High refractoriness under load
High mechanical strength
Excellent thermal shock resistance
Corrosion resistance.

Good resistance against acid slag
High mechanical strength
Stable performance under high temperature environment


Physical Properties:

ITEM RN40
Refractoriness, 1730
Bulk Density, g/cm3 2.15
Apparent Porosity, % 24
C. C. S, Mpa 28
Refractories Under Load (0.2Mpa), 1430
Reheating Linear Change, % 1350x2h 0~-0.3
Al2O3 Content, % 40

Q:What are the physical and chemical properties of refractory bricks
The thermal shock stability, linear?change?on?reheating, softening temperature under a fixed load, compressive strength under normal strength refractoriness
Q:How to wipe off the white paint on the refractory brick (red).
Cover the wall gap with tape. . Then paint the bricks. Finally, tear the tape off. .
Q:How to prevent the refractory bricks from burning to crack?
This may result from formula. Prevent the refractory bricks from being overweight. Firstly, sintering agent should not exceed the standard, when sintering, bricks must be well piled to piled bricks, and the bricks must be dry.
Q:What are the reasons for the production of waste in the formation of fireclay bricks?
The reasons for the production of waste when form fireclay bricks: Tile size is unqualified. This is due to the mold installation is not firm, the template transfers when molding; if the amount of material being added fluctuates largely, also can cause the body size changing. Ji Yangon Chi lie charge generation layer containing decyl poke pull and crack. The molding operation does not according to the principle of the light first and the thick later. At the initial pressure, the air doesn't releases, which causes the elastic aftereffect by repressing. Too much mud water, uneven mixture and inequal template all can make the body produce layer crack or crack. Twist. The template is used for too long, the template deforms, so raw brick deforms, the amount of water is too large, brick naturally deforms, causing the body twist. Miss edge and angle. Because of poor plasticity of mud, particles segregate, feeding back corner is not real, the body will appear side missing and angle modulation phenomenon. Bias voltage. Due to the deflection of the die head or the uneveness of mold bottom. Loose。 Due to insufficient feeding amount or insufficient pressure times.
Q:How to choose refractory brick
According to the using environment of your product, process requirements, used place, refractory brick is very wide, there is low temperature, high temperature, there is heat insulation, there is wear resistant, corrosion resistance.
Q:What kind of coal should be used to burn refractory brick? and how many calories smoke is suitable?
Coal briquette's effect is also good
Q:What is the difference between the refractory bricks, hand-made bricks and the machine pressure bricks?
Hand-made brick mainly produces brick that is not easy to produce molding Machine pressure brick adopts 100 tons of press machine to mold the density of hand-made brick is not enough, it's light; machine pressure bricks can only produce bricks that produce molding at a time, hand-made bricks mainly adopts hydraulic vibration molding machine

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