Sulzer Metco Ag

Siemens Power Generation, Inc.

Thyssenkrupp Technologies Ag

Oerlikon Metco Ag, Wohlen

Gérard Barbezat

Jean-Luc Dorier

Robert Fleck

Peter Ernst

Arno Refke

Thomas Jansing

Sergio Stefano Guerreiro

Christoph Hollenstein

Michael Loch

Ing Michael Loch

Christian Warnecke

Michel Dr-Ing Loch

Dr Jean-Luc Dorier

Peter Zürcher

Spray material for thermally coating a substrate, a thermal spray layer, and a cylinder for a reciprocating piston combustion engine coated with the thermal spray layer. The spray material includes a solid lubricant of ZnO. A volume fraction of ZnO in the spray material lies in a range from 0.1% to 15% of the volume of the spray material.

Spray material, a thermal spray layer, as well as a cylinder with a thermal spray layer

The invention provides a process for applying a heat shielding coating system on a metallic substrate. The coating system comprises at least three individual layers selected from the group of barrier layer, hot gas corrosion protection layer, protection layer, heat barrier layer, and smoothing layer. The coating system is applied to the metallic substrate by low pressure plasma spraying in a single operation cycle. This process enables the layers to be applied in an arbitrary sequence. The process is preferably used in applying a coating system to a turbine blade, particularly a stator or a rotor blade of a stationary gas turbine or of an aircraft engine, or to another component in a stationary or aircraft turbine that is subjected to hot gas.

Process for applying a heat shielding coating system on a metallic substrate

The invention relates to a plasma spraying device () for spraying a coating () onto a substrate () by a thermal spray process. Said plasma spraying device () includes a plasma torch () for heating up a plasma gas () in a heating zone (), wherein the plasma torch () includes a nozzle body () for forming a plasma gas stream (), and said plasma torch () has an aperture () running along a central longitudinal axis () through said nozzle body (). The aperture () has an convergent section () with an inlet () for the plasma gas (), a throat section () including a minimum cross-sectional area of the aperture, and a divergent section () with an outlet () for the plasma gas stream (), wherein an introducing duct () is provided for introducing a liquid precursor () into the plasma gas stream (). According to the invention a penetration means () is provided to penetrate the liquid precursor () inside the plasma gas stream (). The invention relates also to a method for introducing a liquid precursor () into a plasma gas stream () as well as to the use of a plasma spraying device () and a method in accordance with the present invention for coating a surface of a substrate ().

Plasma spraying device and a method for introducing a liquid precursor into a plasma gas stream

The invention relates to a powder supply system () for supplying a processing apparatus () with a granular substance (). In this arrangement the powder supply system () includes a main container () and a powder conveying system () with a storage container () for conveying the granular substance () into the processing apparatus (). In accordance with the invention, means () are provided so that, in the operating state of the processing apparatus (), a predetermined amount of the granular substance () can be conveyed from the main container () as working powder to the storage container () in such a way that at least a minimum amount (M) is available as a granular substance () in the storage container ().

Powder supply system

Bearing device () with a first bearing part () and a second bearing part () which cooperate in bearing contact, wherein the first bearing part () and the second bearing part () is each provided with a surface layer (), wherein the hardness of the surface layer () of the first bearing part () is greater than the hardness of the surface layer () of the second bearing part ().

Bearing device

The invention relates to a spray powder for coating a substrate (), in particular for coating a bearing part () of a bearing apparatus, the spray powder having at least the following composition: zinc=5% to 30% by weight, tin=1% to 10% by weight, silicon=0.1% to 3% by weight, aluminum=0.1% to 7% by weight, iron=0.01% to 2% by weight, manganese=0.01% to 4% by weight, cobalt=0.01 to 3% by weight, copper=the balance to 100% in % by weight.

Spray powder

The invention relates to a spray powder for coating a substrate (), in particular for coating a bearing part () of a bearing apparatus, the spraying powder having at least the following composition: carbon=0.1% to 1.5% by weight, manganese=0.1% to 8% by weight, sulphur=0.1% to 2% by weight, copper=0.1% to 12% by weight and iron=the balance in % by weight to 100%.

The invention relates to a material based on an oxide ceramic for the manufacture of a surface layer () by means of a thermal coating process including aluminum oxide and zirconium oxide, with the material additionally containing chromium oxide for the simultaneous optimization of the hardness and toughness of the surface layer ().

Material and process for thermal coating, surface layer and also compressor with a surface layer of the material

According to a method for producing a solid ceramic fuel cell, a solid electrolyte layer is gas-tightly deposited on an electrode inside a coating chamber, using a plasma spraying technique. The pressure inside the coating chamber is set at less than approximately 15 mbar for this purpose. A coating material is powder form, preferably with a particle diameter of significantly less than 10 &#x3bc;m, is finely dispersed in the plasma jet in such a way that the individual particles are isolated from each other when they meet the electrode. This enables a very homogenous and impervious solid electrolyte layer to be deposited.

Method for producing a solid ceramic fuel cell

A method is proposed for arc spraying by means of a spray gun (). The spray gun includes two electrically conductive spray wires () and at least one first supply device () for supplying a fluid (), with an electrical voltage being applied to the spray wires (), the spray wires () being fed by means of a wire guide (), an arc () being ignited by the electrical voltage, the spray wires () being converted into a melt () in a melting region () and the melt () being applied by the fluid () to the surface () of a body (). In this connection, particles () from a storage container () are supplied to the melt () by the fluid ().

Growing community of inventors

Opfikon, Switzerland

Gérard Barbezat