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Silicon Carbide Burner Tube

Silicon carbide burner tube not only has excellent mechanical properties at room temperature, such as high bending strength, excellent oxidation resistance, good corrosion resistance, high wear resistance and low friction coefficient, but also high temperature mechanical properties (strength,...

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Silicon carbide burner tube not only has excellent mechanical properties at room temperature, such as high bending strength, excellent oxidation resistance, good corrosion resistance, high wear resistance and low friction coefficient, but also high temperature mechanical properties (strength, creep resistance, etc.) is the best known ceramic materials. Hot-pressing sintering, pressureless sintering,hot isostatic pressing sintering material, the high temperature strength can be maintained to 1600 ℃,silicon carbide burner nozzle is one of the ceramic materials with high temperature strength,its Oxidation resistance is also the best of all non-oxide ceramics.

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Silicon carbide burner tube is a new ceramic material, the following Qingdao Newthink New Materials will introduce the production technology of silicon carbide burner nozzle:

 

1.Blank refining technology

Blank refining technology, is to use forging blank instead of rough forging blank, saving the cost of raw materials and processing costs at the same time.

2.Drilling technology

Drilling technology, the original mechanical drilling has been replaced by computer-controlled laser drilling and electrolytic drilling, smaller can be processed 0.1mm hole.

3.Welding technology

Welding technology, the traditional welding is mainly resistance welding and argon arc welding,progress is now to use high temperature vacuum brazing and high energy density electron beam welding.

4.Plane lapping technology

Plane lapping technology,uses the single disk plane lapping machine to process the smoother, the fine product, its parallelism can achieve 0.0003mm.

   

SPECIFICATION

Item

Unit

Data

Max. working temperature

1380

Density

g/cm3

≥3.02

Porosity

%

<0.1

Bending strength

MPa

250(20℃)

Bending strength

MPa

280(1200℃)

Modulus of elasticity

GPa

330(20℃)

Modulus of elasticity

GPa

300(1200℃)

Thermal conductivity

W/m.k

45(1200℃)

Coefficient of thermal expansion

K-1×10-6

4.5

Rigidity


13

Acid alkaline-proof


Excellent


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