May
8
The fabrication method consists of :
- Manufacture of the heat transfer in a high performance technopolymer, a polysulfone for instance, by using the injection-moulding process. In the case of more than one part, assembly of the parts by ultrasonic welding.
- Machining of the stainless steel plate which supports both the magnetron and its power supply.
- Assembly of the stainless steel plate with the wave guide by solvent fusion or by direct heat sealing.
- The shielding from microwaves is obtained by the formation of a 100-150µm Zinc projection layer on the outer surface of the wave guide using the arc-spraying method. An alternative method consists of using an electroless process such as electroless copper/nickel.
- Using current microwave technology, the microwave supply is a packaged magnetron and power supply with cooling by air, forced air or water.
