Arrangement for coating a powder

A technology of equipment and powder, which is applied in the field of equipment, can solve problems such as coating quality degradation and wear, and achieve the effect of saving space

Inactive Publication Date: 2016-03-16
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In equipment for knife-coating powders there is the problem that the knife-coating elements used for knife-coating wear out over time due to the mechanical loads that occur, and the quality of the coating in knife-coating decreases over time

Method used

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  • Arrangement for coating a powder
  • Arrangement for coating a powder
  • Arrangement for coating a powder

Examples

Experimental program
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Embodiment Construction

[0037] figure 1An apparatus 10 for knife coating powder is shown. The device 10 comprises a process chamber 20 in which a coating platform 30 and a doctor blade element 40 in the form of a doctor blade lip are located. The doctor-coating element 40 is held by a multiplex head 50 in the form of a rotating or turret head, on which other doctor-coating elements 41 , 42 and 43 are mounted.

[0038] The apparatus 10 can be used to draw down powders as follows:

[0039] First, for the powder coating, the knife coating element 40 is guided over the coating platform 30 in the direction of the arrow P, whereby powder, in particular in the form of metal powder or ceramic powder, is applied to the coating platform 30 and possibly already on the coating platform 30. Layer on top of the powder layer on the platform. In the area of ​​powder application, wear of the application element 40 can occur in the region of the active doctor blade 45 , which interacts directly with the coating pla...

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PUM

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Abstract

The invention relates to an arrangement (10) with a processing chamber (20), a coating platform (30) which can be found in the processing chamber (20), and a coating device with a coating element (40) which can be found in the processing chamber (20) for coating a powder, in particular a metal or ceramic powder. According to the invention, the arrangement (10) has an exchanging device (100) which is suited for exchanging at least one portion of the coating element (40) with another portion of the same coating element (40) or for exchanging the entire coating element (40) with another coating element (41, 42, 43) within the processing chamber (20) when the processing chamber (20) is closed. The exchanging device (100) can comprise a multiple head (50), in particular a pivoting head or a revolving head, an exchanging station (80), and/or a moving device (70) which allows a coating element (40) portion that is to be exchanged to be moved or pushed away. A part of the coating element (40) can also be rolled on a supply roller (230), and the coating element portion can be exchanged by unrolling the coating element from the supply roller (230). Together with the exchanging device (100), a wear determining device (300) is also preferably provided, said wear determining device being capable of measuring the wear of the coating element (40) and triggering an automatic coating element exchange or coating element portion exchange by means of the exchanging device (100).

Description

technical field [0001] The invention relates to a device with: a process chamber; a coating platform located in the process chamber; a doctor-coating device with a doctor-coating element located in the process chamber for doctor-coating powder, in particular metal powder or ceramic powder. Background technique [0002] Such a device is described, for example, in the following doctoral dissertation, "Diegerative Fertigungmittels Laser-Sintern: Scanstrategien, Einflüsseverschiedener ProzessparameteraufdiemechanischenundoptischenEigenschaftenbeimLSvonThermoplastenundderen ” (Wesam Kaddar, University of Duisburg-Essen, Faculty of Engineering Sciences, Department of Mechanical Manufacturing and Process Technology, Approved dissertation for doctoral engineering degree, November 17, 2010). [0003] In systems for knife-coating powders, the problem arises that the knife-coating elements used for knife-coating wear out over time due to the mechanical loads that occur, and that the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B29C67/00B22F1/00
CPCB29C64/153Y02P10/25B22F10/20B22F12/67B22F10/10B22F12/90B29C64/214B22F1/00B05C19/00B05C19/04
Inventor M.谢弗O.艾丁H.皮尔兹
Owner SIEMENS AG
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