タイトルまたは説明

SiC Heating Element
SiC heating element is one type of ceramic heating elements, which use six-party high purity green SiC powder as the main raw material. Silicon is recrystallized less than ***0 ℃ high temperature to form finished materials. The using temperatures up to ***0 °C under oxidation atmosphere, and constant working life up to ***0 hours. It is widely used in various high temperature electric furnaces and other electric heating devices， such as in the industries of magnet, ceramics, powder metallurgy, glass, metallurgy and machinery etc.

Description

Advantage:
1. Selecting high purity green SiC powder, to ensure best foundation for top quality.
2. SiC tube is extruded by **0T press machine, to ensure high density uniform through whole length.
3. Excellent resistance rate between heat zone and cold zone, to avoid over-temperature of cold zone to damage furnace body.
4. Special technology to spread a protect film on the surface of hot zone, which enhance the Antioxidant property evidently and lengthen the service life.
GD type:
Equal diameter of Silicon Carbide,lower resistance of cold zone，less heating loss and enrgy saving *0%;
 

Surface load=rated power/surface area of hot zone (W/cm2)

The surface load has great relation with service life of the SiC super Heating Elements. Therefore, it is necessary to strictly control the surface load within the limit range when heating. Overload is not permitted.
Given surface temperature of hot zone corresponding to furnace temperature, the allowed unit surface load of hot zone is as the above chart.SiC super Heating Elements 

The affection of atmosphere to SiC heating elements
The atmosphere inside the furnace has great affection to the service life of the SiC heating elements. During working, the SiC heating elements (SiC elements) is oxidized gradually and produce SiO2 which seperates SiC crystals. So the local zone resistance increases and the volume expends until SiC element break down.
SiC heating elements (SiC elements)  can work(***0℃)continuously for ***0 hours in the dry and pure air.

 

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