Risesun Hotbar - Coating SiC heating elements

SiC heating elements can be used in furnaces with different atmospheres. However, their service life may be shortened in some atmospheres.

Classification:

SiC heating elements

Key words:

SiC heating elements

newest electric heating element

best Spiral heating elements

china Kanthal heating elements

Online consultation

86-0371-62705066

SiC heating elements can be used in furnaces with different atmospheres. However, their service life may be shortened in some atmospheres. In order to extend their service life in different atmospheres, we have developed various coatings to preventt the SiC structures from faster ageing, mainly including A, B, C and D coatings. Actually, there may be several harmful volatiles in some furnaces, and even some harmless volatiles may become harmful after they are mixed with other volatiles, which will shorten the service life of heating elements. Since coatings have different effects in different atmospheres, small-scale batch tests should be done to solve specific coating problems to find out the optimal plans and select the best coating.

Impact on Elements and Recommended Coating in Different Atmospheres

Atmosphere	Impact on Element	Solution	Coating
Vapor and moisture	The service life is about 20% shorter than that in the dry air.	New furnaces or furnaces unused for a long time should be thoroughly dried at low temperature before heating.	A coating
Nitrogen	Nitrogen reacts with SiC above 1,400℃, producing silicon nitride, making elements fragile and shortening the service life of elements. This is affected by dew point in the same way as H2.	The recommended furnace temperature is not higher than 1300℃ with surface loading as low as possible.	B coating
Hydrogen	When elements are heated to above 1,350℃, their resistance will increase rapidly and their mechanical strength will decline, furthermore, the service life of elements varies greatly, depending on the moisture content of gas.	The recommended furnace temperature is not higher than 1300℃ with surface loading lower than 5W/cm2	C coating
Ammonia	Same as hydrogen and nitrogen	The recommended furnace temperature is not higher than 1300℃ with surface loading lower than 5W/cm2	B coating C coating
Disassociated gas（N2，CO，CO2，H2，CH4） (N2, CO, CO2, H2, CH4)	Decomposed Carbon black attach to body of heating elements to make elements loose.	Convey air into furnace frequently to burn up additional Carbon. For furnace design, keep enough space between elements and elements to prevent short circuit.
Sulphur （S、S2）	When elements are heated to 1,300℃, their surfaces will be eroded, leading to a sharp increase in resistance.	Control the element temperature to below 1,300℃.
Vacuum	SiO protective film will not be formed in high vacuum, and Silicon carbide will be decomposed itself, then service life of elements will be shortened.	Furnaces temperature lower than 1000℃ with pressure above 0.13Pa.
Others	Various substances from treated materials, such as Pb, Sb and alkali metal, react with elements, which may shorten the service life of elements.	To get rid of these substances in advance, set up a gas exhaust in furnace to reduce the impact.	D Coating

Coating SiC heating elements are engineered to deliver exceptional performance in high-temperature environments, reaching temperatures up to 1600°C. Designed for a variety of industrial applications, these heating elements provide superior thermal stability and efficiency, making them ideal for use in furnaces, kilns, and advanced manufacturing processes.

The innovative coating technology enhances the oxidation resistance of SiC, significantly extending the operational lifespan of the heating elements. This protective layer minimizes wear and tear, ensuring consistent heating performance even under the most challenging conditions. As a result, users benefit from reduced maintenance costs and improved overall system reliability.

Coating SiC heating elements feature rapid heat-up and cool-down capabilities, allowing for precise temperature control essential in critical applications such as semiconductor processing and material sintering. Their robust construction withstands thermal shock and mechanical stress, making them a dependable choice for demanding industrial settings.

Choose Coating SiC heating elements for a cutting-edge heating solution that combines durability, efficiency, and precision. Elevate your heating processes with advanced technology designed to meet the rigorous demands of modern industry.

Recommend Products

Risesun Hotbar HD - High-density SiC heating elements

Along with the development of new materials, SiC heating elements are used more and more widely, meanwhile, the working conditions of SiC heating elements are getting worse and worse in some fields, such as sintering of NCM811 and NCA, stronger corrosion atmosphere in the furnace, which press manufacturers of refractories, kiln furniture and heating elements to improve performance of their products continuously in order to match demands of the changing market.

Hotbar SiC heating elements - SiC resistance heating elements

Hotbar® SiC heating elements are manufactured to rod or tube form by recrystallization process under high temperature after extrusion forming with high purity alpha silicon carbide raw materials.

RH type SiC heating elements (equal diameter with higher resistance)

The loading values in this table are all tested in the open air at 1,000°C, which are used for calibration test purpose only. The maximum recommended operating voltage of new elements must not exceed 80% of the test value, and the power must not exceed 65% of the test value.

Online consultation

Please fill out the form below. We will contact you as soon as possible.

0086-371-62705066/62705299/62705699

info@risesun.co

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

If you are interested in our products, please don’t hesitate to email us and we will contact you as soon as possible. Thank you very much.

Business License

SEO

Top