Unlock instant, AI-driven research and patent intelligence for your innovation.

controlled thermal cladding

A technology of thermal cladding and cladding, applied in the technical field of thermal cladding

Inactive Publication Date: 2017-08-22
SIEMENS AG
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However this is not optimal as the power drop induced by the pressure drop at the burner is only compensated by increasing the powder mass flow

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • controlled thermal cladding
  • controlled thermal cladding
  • controlled thermal cladding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The coating is made by thermal coating process, such as SPPS (solution precursor plasma spraying), HVOF (high velocity flame spraying), APS (atmospheric plasma spraying), LPPS (low pressure plasma spraying), VPS (vacuum plasma spraying), ... apply. In this case, a plasma or a flame is generated in a nozzle, wherein material flows in through the nozzle or at the end of the nozzle.

[0017] Due to wear at the nozzle or at the coating device, the material flow behavior and thus the degree of melting of the material, in particular the powder, changes.

[0018] figure 1 Shown according to the prior art, between the nozzle 30 and the electrode 36 ( Figure 10 ) between the voltage U B Variations of the example. The voltage U between the nozzle 30 and the electrode B decreases with time t and then enters saturation. In other nozzle types, the voltage U B A continuous decrease or other variation in time t is also possible.

[0019] Corresponding to this is the average ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Through the combined measurement of particle velocity, particle temperature, particle strength, burner voltage and their control within a tolerance range, it is possible to keep the layer weight constant despite wear-related fluctuations during the coating process.

Description

technical field [0001] The invention relates to a technology of thermal cladding. Background technique [0002] Thermal spraying processes are used to produce metallic and ceramic layers, in which the material is completely or at least partially melted. [0003] The material is injected eg into a nozzle of a plasma burner or externally. At least the nozzles are worn out by the extremely high plasma temperature and the influence of the powder material. This causes wear-related fluctuations in the cladding process, which fluctuations are mainly caused by the pressure drop at the burner. [0004] Until now, these fluctuations have been compensated by recontrolling the powder mass flow in order to keep the desired layer weight of the blade within the tolerance zone. [0005] However, this is not optimal, since the increased powder mass flow only compensates for the power drop caused by the pressure drop at the burner. Contents of the invention [0006] It is therefore an o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/12
CPCC23C4/129C23C4/134
Inventor 罗尔夫·维尔肯赫纳卡斯滕·巴罗茨基马里奥·费尔克尔萨沙·马丁·基耶克约翰内斯·里希特
Owner SIEMENS AG