Mtu Aero Engines Gmbh

Daimler Chrysler Ag

Joerg Hoeschele

Juergen Steinwandel

Erwin Bayer

Manuel Hertter

Stefan Schneiderbanger

Theodor Staneff

Axel Heuberger

Rainer Willneff

Friedrich Oeffinger

Philip Betz

An arrangement for measuring characteristic properties of a plasma beam in a thermal spray process, including a device for introducing spray materials into the plasma, a one-dimensional or two-dimensional array including first optical waveguides for receiving the light radiation emitted by the plasma, and other optical waveguides for distributing the light radiation emitted by the plasma. A device is provided for splitting the light guided in the first optical waveguides into the other optical wave guides, one optical waveguide being connected to the opening diaphragm of a particle flow arrangement, and the other optical waveguide being connected to the opening diaphragm of a spectrometer. A device is also provided for determining the current state of the spray process.

Arrangement for monitoring thermal spray processes

A method is provided for purifying gases, particularly gases contaminated by environmentally harmful substances, by way of plasma discharge. The gas to be purified is guided through a thermal plasma, which is generated by electrodeless ignition of a process gas, so that, by way of the thermal plasma, the harmful substances contained in the gas to be purified are converted to environmentally neutral, fully oxidized substances.

Method for purifying gas using plasma discharge

The invention relates to a method and an apparatus for plasma welding. A free microwave-induced plasma jet is generated by the following steps. Microwaves are generated in a high-frequency microwave source. The microwaves are guided in a wave guide. A process gas is introduced at a pressure of p&#x2267;1 bar into a microwave-transparent tube, which comprises a gas inlet opening and a gas outlet opening, the process gas being introduced through the gas inlet opening into the microwave-transparent tube in such a way that it has a tangential flow component. A plasma is generated in the microwave-transparent tube by electrodeless ignition of the process gas. The plasma jet is produced by the introduction of the plasma into a working space through a metallic expansion nozzle arranged at the gas outlet opening of the tube.

Method and apparatus for plasma welding with low jet angle divergence

In a process for laser-plasma hybrid welding, to weld work pieces, a laser beam and a plasma jet are brought together in the process region close to the work piece. A free microwave-induced plasma jet is generated by the following process. Microwaves are generated in a high-frequency microwave source, and the microwaves are guided in a hollow waveguide. A process gas is introduced into a microwave-transparent tube, which includes a gas inlet opening and a gas outlet opening, at a pressure p&#x2267;1 bar. The process gas is introduced into the microwave-transparent tube through the gas inlet opening in such a manner that it has a tangential flow component. A plasma is generated in the microwave-transparent tube by electrode-free ignition of the process gas, and a plasma jet is generated by introduction of the plasma into the working space through a metallic nozzle arranged at the gas outlet opening of the tube.

Laser-plasma hybrid welding method

The invention relates to a method for aluminum nitride coating of cylinder contact surfaces (ZL) of a crankcase (KG) made of an aluminum basic alloy where the aluminum nitride coating is performed by surface nitriding of the aluminum basic alloy, and the activated nitrogen is generated by a high-pressure plasma process.

Method and apparatus for aluminum nitride coating of a contact surface, especially a cylinder contact surface of a crankcase made of an aluminum basic alloy

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Meckenbeuren-Brochenzell, Germany

Joerg Hoeschele