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Induction plasma

Induction plasma

Plasma is ionized gas, meaning some or all of the electrons have been stripped from atoms or molecules and are free to move around. Induction heating produces plasma through a process called Inductively Coupled Plasma.  


Induction plasma technology has had a significant impact on the optical fibre, ceramics and nanopowders industries. The technology is particularly effective at spheroidizing, densifying and purifying powders such as silica and tungsten carbide. These powders are employed by manufacturers in the electronics, biomedical and energy industries.  


EFD Induction has long been at the forefront of efforts to harness the benefits of induction plasma production. Together with various partners, EFD Induction helped develop a unique silicon purification technology for upgrading Metallurgical Grade Silicon to Solar Grade quality (SoG-Si). And our Canada-based partner company Tekna Plasma Systems Inc. is a recognized leader at developing solutions for nanopowder synthesis, plasma spray coating and powder spheroidization.



Industrial heat processing systems


HeatLine is EFD Induction’s family of systems for melting and forging applications. A comprehensive range, HeatLine systems feature serial and/or parallel compensated induction power sources for a wide range of output powers and frequencies.


HeatLine’s serial technology is built around robust, high-uptime IGBT transistors. Our parallel technology features thyristor, IGBT and MOSFET components. Each HeatLine converter offers automatic load matching, a single microprocessor-based control board and integrated capacitors.


In addition to systems for melting and forging, HeatLine offers solutions for graphite coating, wire and strip heating, spring wire rolling, glass melting, graphite susceptor heating, galvanizing, food and chemical vessel heating, and other special applications.




Product sheet :  HeatLine

Plasma technology for the cable and wire industry

One hallmark of EFD Induction has been our success at finding new exciting uses for induction heating. A typical example is induction heating for the plasma industry. 


The whole purpose of plasma is to create a very pure glass material, which can, for example, facilitate the passage of light signals through optical cable. That’s exactly why induction heating is so suited to the cable and wire industry.


Traditional furnace heating can contaminate the melted glass with impurities. Induction heating however is a totally clean process that lowers the costs-as there's no need to buy and maintain purification machines.

Plasma technology for the metal and foundry industry

Our inductive plasma technology has had a significant impact on the metal and foundry industry within heat treatment of titanium and silicon.


Compared to traditional techniques, EFD Induction plasma solutions dramatically simplify and streamline the heat treatment process. An EFD Induction plasma system with 100 kW output power and a 500 mm long plasma flame can typically produce in the region of 100 kg titanium per day.


Moreover, the very high enthalpies obtained by EFD Induction plasma systems result in extremely high purity titanium and silicon. (Inductive plasma can reach temperatures of 5,000 – 11,000°C.)


Titanium prepared with EFD Induction plasma is used for surgical and dental implants. It is also employed in the powder metallurgy and aerospace industries. Our solutions can also be used to produce silicon for use in solar cells.