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High speed oxygen fuel spraying system and metal ceramic coating prepared by the same

A high-velocity oxygen fuel and metal technology, applied in metal material coating process, coating, fusion spraying, etc., can solve the problems that it is difficult to choose the spraying temperature and cannot change the powder composition at any time

Inactive Publication Date: 2014-03-12
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method cannot change the powder composition at any time, and it is also difficult to choose the appropriate spraying temperature for two powders with very different melting points.

Method used

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  • High speed oxygen fuel spraying system and metal ceramic coating prepared by the same
  • High speed oxygen fuel spraying system and metal ceramic coating prepared by the same
  • High speed oxygen fuel spraying system and metal ceramic coating prepared by the same

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Embodiment Construction

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the definitions provided in this application shall prevail.

[0017] When an amount, concentration or other value or parameter is stated as being within a range, within a preferred range, or as a preferred upper numerical limit and as a preferred lower numerical limit, it is to be understood or preferred values ​​in combination with any range lower limit or preferred value, regardless of whether or not that range is specifically disclosed. Unless otherwise indicated, the numerical ranges set forth herein are intended to include the endpoints of the range, and all integers and fractions within that range.

[0018] When the terms "about" and "approximately" are used to describe a value or an endpoint in a range, the disclosure should be understood to include the spec...

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Abstract

The invention on the one hand provides a high speed oxygen fuel spraying system, which includes a first high speed oxygen fuel spray gun for spraying ceramics and a second high speed oxygen fuel spray gun for spraying metal or metal alloy. The jet flows sprayed simultaneously from the first high speed oxygen fuel spray gun and the second high speed oxygen fuel spray gun are overlapped and covered on the surface of a workpiece to be coated, so as to form the coating. The metal or metal alloy in the coating varies along the thickness direction, and the closer to the surface of the workpiece, the content of metal or metal alloy is higher. On the other hand, the invention also provides a method for preparing ceramic metal coating according to the above system.

Description

technical field [0001] The present invention relates to a high-velocity oxy-fuel spraying system (or called a supersonic flame spraying system), more specifically, the present invention relates to a spraying system comprising two high-velocity oxy-fuel spray guns and using said spraying system to prepare composite ceramic metals, especially Mo -Al 2 o 3 coating. Background technique [0002] At present, the sustainable development of fossil fuel resources, carbon dioxide emissions and global warming are getting more and more attention. It is very critical to find new energy sources to replace the currently used fossil fuels, such new energy sources should be low-cost, green and renewable. Solar energy can meet the above requirements and has been extensively researched and utilized for decades. [0003] Electricity can be generated from the sun by direct use of semiconductor photovoltaic solar cells or by using solar thermal technology that uses steam heated from the sun ...

Claims

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Application Information

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IPC IPC(8): C23C4/12C23C4/10C23C4/06C23C4/129
Inventor 李长鹏
Owner SIEMENS AG
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