Silicon nitride heating elements and silicon carbide refractory insulation
Silicon Knit Products ]
Product Overview
Silicon carbide heating elements are silicon carbide heating elements that are mainly used as heaters in electric furnaces, and are available in a wide range of temperatures from 800°C to 1600°C.
They are used in many industries and academic research institutes, including general industry, automotive, electrical and semiconductor, medical, glass (optical), steel, nonferrous, recycling, and advanced science.
We also offer coated heating elements for use in special atmospheres.
Porous alumina refractories are porous refractories with low heat capacity, contributing to energy conservation.
Silicon dam refractories are excellent in rapid cooling, rapid heating, and thermal conductivity.
Type of heating element
Rod-shaped silicon nitride
Silicon carbide heating elements
This is the most standard type of heating element manufactured by our unique manufacturing process.
Various sizes are available, and dimensions other than standard sizes can also be customized.
Silicon Carbide Heating Elements
Silicon carbide heating elements
They are spirally grooved and can be used mainly at higher temperatures than bar type silicone knits.
The larger diameter ones can also be used as tubular furnaces, as they can contain the material to be heated inside.
A band is used for the terminal.
Double tube silicon carbide heating elements
Silicon carbide heating elements
This is a heating element with an ingenious groove incision in the silicone knit tube. The electrode can be concentrated on one side, allowing free design of the furnace.
The large diameter type can be used as a tubular furnace by placing the heated material inside.
A band is used for the terminal.
Spiral Silicon Carbide Heating Elements (SS Type)
This heating element has spiral grooves cut into its bar-shaped heating element, and can be used at higher temperatures than bar-shaped heating elements. However, they are more fragile than rod heating elements.
Spiral R type silicon carbide heating element (SSR type)
A spiral groove is cut in a rod-shaped heating element with a quantity terminal on one side, allowing it to be used in higher temperature ranges than the rod type. The electrodes can be concentrated on one wall, making maintenance and inspection easier. This type of heating element is recommended because the life of rod-type heating elements is significantly shortened at high temperatures. However, this type of heating element is more susceptible to breakage than the rod heating element.
Hairpin type silicon knit (HPL type)
This heating element has both terminals on one side, and the electrodes can be concentrated on only one side, making it easy to replace the heating element. It can also be used when the furnace structure imposes restrictions, and can be used in the same temperature range as a rod-type heating element. The joints do not generate heat in the same way as the heating elements, but the joints are designed to withstand the same temperatures, so they can be used exposed inside the furnace.
The above silicone knit heating elements are available in various sizes.
Special sizes and resistance values other than standard sizes are also available.
Silicon carbide heating elements
Special silicon knit
1) Infrared light source silicone knit (IRH type)
2) Ring silicone knit (SR type)
3) DSPT and SPT type silicone knit
3) Three-phase silicone knit (WHP type)
We also manufacture various types of heating elements as shown on the left as special silicone knits.
We can also make prototypes of special shapes to meet your needs, so please feel free to contact us.
Refractories for electric arc furnaces
Pore Random Refractory Insulation and Refractories
Pore Random is a porous lightweight alumina refractory heat insulation material with extremely high refractoriness, low heat capacity, and good heat retention, which allows the temperature to be raised with less power.
Silico-Random Refractories
Silicorundum is made from silicon carbide and sintered. Silicorundum is characterized by its extremely high thermal conductivity compared to ordinary refractories, and in particular, its outstanding resistance to oxidation and rapid heating and quenching. Silicolandum is best suited for use in shelves of various firing furnaces, saggars, and special furnace linings.
Silicolite recrystallized silicon carbide refractories
Silicolite is made from high-purity silicon carbide and sintered at ultra-high temperatures without using bonding agents, so it contains no impurities and does not contaminate furnaces, etc. even when used at ultra-high temperatures.
However, when used at 1400°C or higher in a hydrogen or nitrogen atmosphere, SiH2 and SiNx will be generated, resulting in deterioration.
For inquiries about silicon carbide heating elements and refractories, please feel free to contact Motoyama!
Our expert staff will propose products and materials that meet your needs and equipment specifications.