CN103866220A - Preparation method for aluminum alloy based plasma spray coating - Google Patents
Preparation method for aluminum alloy based plasma spray coating Download PDFInfo
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- CN103866220A CN103866220A CN201210531317.9A CN201210531317A CN103866220A CN 103866220 A CN103866220 A CN 103866220A CN 201210531317 A CN201210531317 A CN 201210531317A CN 103866220 A CN103866220 A CN 103866220A
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- transition layer
- plasma spraying
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Abstract
The invention relates to a preparation method for an aluminum alloy based plasma spray coating. The method includes the steps of: conducting sand-blasting roughening treatment on an aluminum alloy substrate surface; spraying a transition layer on the aluminum alloy substrate surface by a plasma spraying machine, and keeping the thickness of the transition layer at 30-60 micrometers; then spraying the to-be-sprayed powder to the transition layer by the plasma spraying machine, and keeping the coating thickness at 150-170 micrometers. The transition layer is an Ni-Al transition layer. The plasma spraying parameters are: a spraying distance of 70-90mm, a powder feeding rate of 55-58g/min, an argon flow rate of 30-40L/min, and a hydrogen flow rate of 7-9L/min. According to the method provided by the invention, by introducing the Ni-Al transition layer, the aluminum alloy and the coating can be better combined.
Description
Technical field
The present invention relates to a kind of preparation method of spray-on coating, relate in particular to a kind of preparation method of Al-alloy based plasma spraying coating.
Background technology
Aluminium alloy, due to advantages such as its light weights, has a good application prospect in fields such as aerospace.But aluminium alloy capability also exists certain defect, its hardness is low, wear no resistance.Plasma spraying coating has many advantages, has strengthening aluminum alloy surface hardness, wear resistance etc.But the bonding strength of coating and aluminium alloy is not high at present.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of preparation method of Al-alloy based plasma spraying coating is provided.Can make aluminium alloy be combined well with coating.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of preparation method of Al-alloy based plasma spraying coating, it is characterized in that, and comprise the steps:
Aluminium alloy matrix surface is carried out to sandblast roughening treatment;
Utilize plasma spraying machine at described aluminium alloy matrix surface spraying transition layer, described transition region thickness is 30-60 μ m;
Utilize plasma spraying machine to be sprayed on transition layer in powder to be sprayed subsequently, described coat-thickness is 150-170 μ m.
Described transition layer is Ni-Al transition layer.
Described plasma spray coating process parameter is spray distance: 70-90mm, powder feeding rate: 55-58g/min, argon flow amount 30-40L/min, hydrogen flowing quantity 7-9 L/min.
The invention has the beneficial effects as follows: by the introducing of Ni-Al transition layer, can make aluminium alloy be combined well with coating.
Embodiment
Be described below in conjunction with principle of the present invention and feature, example, only for explaining the present invention, is not intended to limit scope of the present invention.
A preparation method for Al-alloy based plasma spraying coating, is characterized in that, comprises the steps:
Aluminium alloy matrix surface is carried out to sandblast roughening treatment;
Utilize plasma spraying machine at described aluminium alloy matrix surface spraying transition layer, described transition region thickness is 30-60 μ m;
Utilize plasma spraying machine to be sprayed on transition layer in powder to be sprayed subsequently, described coat-thickness is 150-170 μ m.
Described transition layer is Ni-Al transition layer.
Described plasma spray coating process parameter is spray distance: 70-90mm, powder feeding rate: 55-58g/min, argon flow amount 30-40L/min, hydrogen flowing quantity 7-9 L/min.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a preparation method for Al-alloy based plasma spraying coating, is characterized in that, comprises the steps:
Aluminium alloy matrix surface is carried out to sandblast roughening treatment;
Utilize plasma spraying machine at described aluminium alloy matrix surface spraying transition layer, described transition region thickness is 30-60 μ m;
Utilize plasma spraying machine to be sprayed on transition layer in powder to be sprayed subsequently, described coat-thickness is 150-170 μ m.
2. the preparation method of Al-alloy based plasma spraying coating according to claim 1, is characterized in that, described transition layer is Ni-Al transition layer.
3. the preparation method of Al-alloy based plasma spraying coating according to claim 2, it is characterized in that, described plasma spray coating process parameter is spray distance: 70-90mm, powder feeding rate: 55-58g/min, argon flow amount 30-40L/min, hydrogen flowing quantity 7-9 L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210531317.9A CN103866220A (en) | 2012-12-11 | 2012-12-11 | Preparation method for aluminum alloy based plasma spray coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210531317.9A CN103866220A (en) | 2012-12-11 | 2012-12-11 | Preparation method for aluminum alloy based plasma spray coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103866220A true CN103866220A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210531317.9A Pending CN103866220A (en) | 2012-12-11 | 2012-12-11 | Preparation method for aluminum alloy based plasma spray coating |
Country Status (1)
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| CN (1) | CN103866220A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970147A (en) * | 2016-06-06 | 2016-09-28 | 平高集团有限公司 | Aluminum alloy matrix composite material, preparation method and application |
| CN106756715A (en) * | 2016-12-08 | 2017-05-31 | 钦州太平电子科技有限公司 | A kind of preparation method of aluminum alloy corrosion resistant coating |
| CN112359309A (en) * | 2020-11-23 | 2021-02-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Preparation method of anti-adhesion coating for aero-engine driving connecting rod |
-
2012
- 2012-12-11 CN CN201210531317.9A patent/CN103866220A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970147A (en) * | 2016-06-06 | 2016-09-28 | 平高集团有限公司 | Aluminum alloy matrix composite material, preparation method and application |
| CN106756715A (en) * | 2016-12-08 | 2017-05-31 | 钦州太平电子科技有限公司 | A kind of preparation method of aluminum alloy corrosion resistant coating |
| CN112359309A (en) * | 2020-11-23 | 2021-02-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Preparation method of anti-adhesion coating for aero-engine driving connecting rod |
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Legal Events
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |