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Silicon Carbide Heating Element

Silicon Carbide Heating Element
Silicon Carbide Heating Element
Offer Type: Sell
Offer Post Time: 2009-04-27
Expiration Date: 2010-03-02
Details: Our company can produce silicon carbide(SiC) heating element, including U-type, W-type, GC-type, GD-type, SG-type, SD-type, tube, other products according to your requirment.

Heater character:
1. Physical character: Specific gravity 2.6-2.8g/cm3, Bend steghth >300kg, Hardness>9MOH, Tensile steghth> 150kg/cm5, Porosity rale<30%, Radiancy 0.85.

2. Chemical character: The element starts to being oxidized over 800t in air; And Si02 protective film will be generated on the surface of hot zone when temperture get to 1000-1300t; Cistoba lite will be cry-stallized at 1300t) the protect film get to a certain thickness when the temperature get to 1500t which make the oxidation speed being very slowly to stable. If continue to be heated to over 1627t, the protect film will be damaged and oxidation speed will be more rapid evidently and make the element damaged earlier.

Though the element will be oxidized very slowly in course of application, it also will make the resistance increased following long time application, this phenomenon calls ageing, In order to lower the ageing speed, we use special technology to spreed a protect film on the surface of hot zone in course of production, which enhance the Antioxid ant property of element evidently and lengthen the service life.

The alkali & alkaline metal oxide will react with SiC at about 1300t and generate slialte, which calls alkalich-emical corrosion, and can influence the glowing of element.

The effects to elements from melting metal
Some metals. Such as cobalt. Nickel. Chrome and so on. Can corrade the element in high temerature melting state and affect the service life of element.

Welcom to contact us.

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