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Bluelab Wasseranalysesysteme Gmbh

Michael Jauss

Armin Dommer

Rudolf Emmerich

Horst Muegge

Horst Mugge

Device for heating components &prime; of a microwave-absorbing plastic material, said device incorporating a microwave generator which generates microwaves of a particular frequency, an antenna with at least one free end &prime; to which the microwaves are conducted, and an enclosure surrounding and shielding the antenna with a heating zone &prime; provided between the free end &prime; of the antenna and the shielding enclosure for the localized heating of the components &prime;, said device featuring in the area of the heating zone &prime; at least one temperature sensor &prime; which is interactively unaffected by the microwaves and which is capable of determining the temperature of the component &prime; during the heating process. This device in combination with the associated process for heating components &prime; permits the monitoring of the temperature in the heating zone &prime;, thus ensuring a consistent quality level of the heated components.

Device and method of heating components made of microwave absorbing plastic

With a device for heating parts,made of a microwave absorbing plastic and having a microwave generator,that generates microwaves of a certain wavelength, an antenna,to which the microwaves are conducted, having at least one free end,and a device,which surrounds the antenna,, it is proposed that the device for shielding,be designed with a tubular shape, so that the device,has an inside diameter smaller than half the wavelength, projects beyond the free end,of the antenna and has an opening,in its end face. With this device it is possible to achieve a spatially limited and nevertheless homogeneous heating of parts,. Furthermore a method of heating or welding, shaping or crosslinking parts made of a microwave absorbing plastic using this device is also proposed.

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Moessingen, Germany

Michael Jauss