JPH028357A - Thermal spraying method - Google Patents
Thermal spraying methodInfo
- Publication number
- JPH028357A JPH028357A JP63156296A JP15629688A JPH028357A JP H028357 A JPH028357 A JP H028357A JP 63156296 A JP63156296 A JP 63156296A JP 15629688 A JP15629688 A JP 15629688A JP H028357 A JPH028357 A JP H028357A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- energy beam
- thermal
- molten state
- molten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、金属、セラミックス等の溶融又は半溶融微粒
子を吹付けて皮膜を形成する溶射方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal spraying method for forming a film by spraying molten or semi-molten fine particles of metal, ceramics, etc.
溶射方法は、第２図模式図に示すように、ガス式又は電
気式の溶射ガン１０において、金属、セラミックス又は
これらの混合物を高温のガス炎やプラズマ環境中に投入
して溶融又は半溶融状態の微粒子とし、ジェット噴流１
１として基材１表面に吹付けて溶射皮膜２を形成さぜる
表面処理技術であり、従来の溶射方法は大半が大気中で
行われておシ、最近減圧のアルゴン環境下でのプラズマ
溶射方法が開発されている。As shown in the schematic diagram in FIG. 2, the thermal spraying method is such that metal, ceramics, or a mixture thereof is placed in a high-temperature gas flame or plasma environment in a gas-type or electric-type thermal spray gun 10 to melt or semi-molten it. jet stream 1
1 is a surface treatment technology in which a thermal spray coating 2 is formed by spraying onto the surface of a substrate 1. Most conventional thermal spraying methods are carried out in the atmosphere, but recently plasma spraying in a reduced pressure argon environment has been developed. A method has been developed.
しかしながら、大気中θ）溶射方法Ｖこは次の問題点が
ある。However, the atmospheric spraying method has the following problems.
（１）大気中であるため、皮膜中に酸化物が含まれ密着
性が悪い。(1) Since it is in the atmosphere, the film contains oxides and has poor adhesion.
（２）基材を予熱すると、酸化し密着性が劣る。(2) If the base material is preheated, it will oxidize and the adhesion will be poor.
ｆ３１ （２）により基材の予熱ができないため、皮
膜内σ）残留応力が解放できず、従って厚）膜化が不可
能である。Since the base material cannot be preheated due to f31 (2), residual stress within the film cannot be released, and therefore it is impossible to form a thick film.
また大気中溶射方法の問題点を解決すべく開発された減
圧プラズマ溶射方法Ｖこも次の問題点がある。Further, the reduced pressure plasma spraying method V, which was developed to solve the problems of the atmospheric spraying method, also has the following problems.
（１）減圧のアルゴン中であるため、酸化物の混入は少
なく基材の予熱も可能であるが、溶融状態まで温度を上
げていないため、基材の表面の凹凸及び粒子の衝突によ
シ機械的に密着しているにすぎず、組織的にも中間層が
ほとんどない二層状態であフ、よって皮ｊ漠の密着性の
点で問題がある。(1) Because it is in argon under reduced pressure, there is less oxide contamination and it is possible to preheat the base material, but since the temperature is not raised to a molten state, the unevenness of the surface of the base material and the collision of particles may cause damage. They are only mechanically adhered, and are structurally two-layered with almost no intermediate layer, which poses a problem in terms of the adhesion of the skin.
本発明は、このような挙情に鑑みて提案されたもので、
基材と溶射材料が混合、拡散し、密着性良好な溶射皮膜
が形成される溶射方法を提供することを目的とする。The present invention was proposed in view of these circumstances.
It is an object of the present invention to provide a thermal spraying method in which a base material and a thermal spraying material are mixed and diffused to form a thermal sprayed coating with good adhesion.
そのために本発明は、減圧の無酸化ガス雰囲気中に設置
された基材表面上に高エネルギビーム発生装置より発せ
られたビームを照射して上記基材の表層部を溶融状態と
し、その直後又は同時に溶射ガンより溶融又は半溶融状
態とした溶射材料のジェット噴流を上記溶融状態の基材
表層部に吹付は皮膜を形成させることを特徴とする。To this end, the present invention irradiates the surface of a base material placed in a reduced-pressure non-oxidizing gas atmosphere with a beam emitted from a high-energy beam generator to melt the surface layer of the base material, and immediately or At the same time, a jet stream of a molten or semi-molten thermal spray material is sprayed from a thermal spray gun onto the surface layer of the molten base material to form a film.
本発明方法においては、溶融状態の基材に溶融又は半溶
融状態の溶射材料微粒子を吹付けることにより、基材と
溶射材料が混合、拡散し、基材と溶射皮膜の１−に基材
と溶射材料の混合組織である中間層が形成され、この中
間層により溶射皮膜の密着性が向上する。In the method of the present invention, by spraying fine particles of molten or semi-molten thermal spray material onto a molten base material, the base material and the thermal spray material are mixed and diffused, and the base material and the thermal spray coating are mixed and dispersed. An intermediate layer, which is a mixed structure of thermal sprayed materials, is formed, and this intermediate layer improves the adhesion of the thermal sprayed coating.
本発明溶射方法の一実施例を図面について説明すると、
第１図はその実施要領を示す模式図である。An embodiment of the thermal spraying method of the present invention will be explained with reference to the drawings.
FIG. 1 is a schematic diagram showing the implementation procedure.
上図において、基材１を収納設置する処理チャンバ４に
減圧口５を設けて図示せざる真空ポンプに接続するとと
もに、無酸化ガス供給口６からン１東酸化ガスを供給し
て処理チャンバ４内を減圧無酸化ガス７の状態とする。In the above figure, a decompression port 5 is provided in a processing chamber 4 in which a substrate 1 is housed and connected to a vacuum pump (not shown), and an oxidizing gas is supplied from a non-oxidizing gas supply port 6 to the processing chamber 4. The interior is brought into a state of reduced pressure non-oxidizing gas 7.
オた基材１の上方に電子ビーム又はレーザーピム等θ）
高エネルギビーム発生装置８と、電気式又はガス武力溶
射ガン１０を配置する。Electron beam or laser beam etc. θ)
A high-energy beam generator 8 and an electric or gas-powered thermal spray gun 10 are arranged.
しかして、減圧無酸化ガス７中に設置された基材１上に
高エネルギビーム発生装置８より発せられた高エネルギ
ビーム９を照射し、基材１の表層部を溶融状態１とし、
その直後又は同時に、溶射ガン１０により溶融又は半溶
融状態とした溶射材料のジェット噴流１１を溶融状態１
′に吹付ける。この操作を連続して行うために、基材１
又は溶射ガン１ｏ及び高エネルギビーム発生装置８のい
ずれかを所定の連関で移動させる。かくすることによシ
、基材１の表面に連続して、基材１と溶射材料ジェット
噴流１１の混合組織の中間層３を有する溶射皮膜２が形
成される。Then, a high-energy beam 9 emitted from a high-energy beam generator 8 is irradiated onto the base material 1 placed in a reduced-pressure non-oxidizing gas 7 to bring the surface layer of the base material 1 into a molten state 1,
Immediately or at the same time, the jet stream 11 of the thermal spray material that has been molten or semi-molten is transferred to the molten state 1 by the thermal spray gun 10.
’. In order to perform this operation continuously, the base material 1
Alternatively, either the thermal spray gun 1o or the high-energy beam generator 8 is moved in a predetermined relationship. In this way, a thermal spray coating 2 having an intermediate layer 3 having a mixed structure of the substrate 1 and the thermal spray material jet 11 is formed continuously on the surface of the substrate 1.
以下に、高炭素クロム軸受鋼（ＳＵＪ−２）の基材上に
プラズマ溶射法により、ＷＣ−Ｃ。Below, WC-C was coated onto a base material of high carbon chromium bearing steel (SUJ-2) by plasma spraying.
材を溶射した具体的実験例について説明する。A specific experimental example in which the material was thermally sprayed will be explained.
この実験例における基材、溶射材料、高エネルギビーム
発生装置、溶射ガン及び溶射結果は次の通りである。The base material, thermal spraying material, high-energy beam generator, thermal spray gun, and thermal spraying results in this experimental example are as follows.
（１）基材： ＪＩＳ Ｇ４８０５の高炭素クロム軸
受鋼（ＳＵＪ−２）。(1) Base material: JIS G4805 high carbon chromium bearing steel (SUJ-2).
（２１溶射材料：焼結粉砕法によ！ｌｌ製造したＷ Ｃ
１２’１０ Ｃｏ粉末で、粒径は１０〜４５μｍ
（６）高エネルギビーム発生装置二発生装置・・・ＣＯ
２レーザー発生装置、出力・・・３ＫＷ、ビーム■・直
径２０ｍｍ１Ｚｔ、レーザービームヘッドから基材まで
の距離・・・２００ｍｍ、ビーム走査速度・・・溶射速
度と同一速度。(21 Thermal spray material: W C manufactured by sintering and crushing method!
12'10 Co powder, particle size 10 to 45 μm (6) High energy beam generator 2 generator...CO
2 Laser generator, output: 3KW, beam ■ diameter: 20mm 1Zt, distance from laser beam head to base material: 200mm, beam scanning speed: same speed as spraying speed.
（４）溶射ガン：プラズマ溶射ガンで、ガンから基材１
での距離は１５０ｍｍ。(4) Thermal spray gun: With a plasma spray gun, from the gun to the base material 1
The distance is 150mm.
（５）溶射結果二以上の条件にて、２０〜５０ミリバー
ルに減圧したアルゴンガス中で４００ｍｍ／ｓｅｃの速
度で基材を移動させ溶射した結果、基材と溶射材料が拡
散した中間層をゼする密着性良好な皮膜を形成すること
ができた。(5) Thermal spraying results As a result of thermal spraying by moving the base material at a speed of 400 mm/sec in argon gas at a reduced pressure of 20 to 50 mbar under two or more conditions, the intermediate layer in which the base material and the thermal spraying material were diffused was separated. A film with good adhesion could be formed.
要するに本発明によれば、減圧の無酸化ガス雰囲気中に
設置された基材表面上に高エネルギビーム発生装置より
発せられたビームを照射して上記基材の表層部を溶融状
態とし、その直後又は同時に溶射ガンよシ溶融又は半溶
融状態とした溶射材料のジェット噴流を上記溶融状態の
基材表層部に吹付は皮膜を形成させることにより、基材
と溶射材料が混合。In short, according to the present invention, a beam emitted from a high-energy beam generator is irradiated onto the surface of a base material placed in a reduced-pressure non-oxidizing gas atmosphere to melt the surface layer of the base material, and immediately after that, the surface of the base material is melted. Alternatively, at the same time, a jet stream of the molten or semi-molten thermal spray material is sprayed onto the surface layer of the molten base material using a thermal spray gun to form a film, thereby mixing the base material and the thermal spray material.
拡散し、密着性良好な溶射皮膜が形成される溶射方法を
得るから、本発明は産業上極めて有益なものである。The present invention is industrially extremely useful because it provides a thermal spraying method that allows diffusion and formation of a thermally sprayed coating with good adhesion.
第１図は本発明溶射方法の一実施例の実施要領を示す模
式図、第２図は従来方法を示す模式図である。
１・・・基材、１・・・溶融状態の基材、２・・・溶射
皮膜、３・・・中間層、４・・・処理チャンバ、５・・
・減圧口、６・・・無酸化ガス供給口、７・・・減圧無
酸化ガス、８・・・高エネルギビーム発生装置、９・・
・高エネルギビーム、１０・・・溶射ガン、１１・・・
ジェット噴流。
代理人 弁理士 塚 本 正 文FIG. 1 is a schematic diagram showing an embodiment of the thermal spraying method of the present invention, and FIG. 2 is a schematic diagram showing a conventional method. DESCRIPTION OF SYMBOLS 1... Base material, 1... Base material in molten state, 2... Thermal spray coating, 3... Intermediate layer, 4... Processing chamber, 5...
- Decompression port, 6... Non-oxidizing gas supply port, 7... Decompressed non-oxidizing gas, 8... High energy beam generator, 9...
・High energy beam, 10... Thermal spray gun, 11...
jet stream. Agent: Masafumi Tsukamoto, Patent Attorney
Claims (1)
エネルギビーム発生装置より発せられたビームを照射し
て上記基材の表層部を溶融状態とし、その直後又は同時
に溶射ガンより溶融又は半溶融状態とした溶射材料のジ
ェット噴流を上記溶融状態の基材表層部に吹付け皮膜を
形成させることを特徴とする溶射方法。A beam emitted from a high-energy beam generator is irradiated onto the surface of a base material placed in a reduced-pressure non-oxidizing gas atmosphere to melt the surface layer of the base material, and immediately or simultaneously a thermal spray gun is used to melt or melt the surface of the base material. A thermal spraying method comprising spraying a jet stream of a thermal spray material in a semi-molten state to form a spray coating on the surface layer of the substrate in the molten state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63156296A JPH028357A (en) | 1988-06-24 | 1988-06-24 | Thermal spraying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63156296A JPH028357A (en) | 1988-06-24 | 1988-06-24 | Thermal spraying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH028357A true JPH028357A (en) | 1990-01-11 |
Family
ID=15624711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63156296A Pending JPH028357A (en) | 1988-06-24 | 1988-06-24 | Thermal spraying method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH028357A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489520A1 (en) * | 1990-11-21 | 1992-06-10 | Sermatech International Inc. | Chamber for applying a thermal spray coating and method of using the same |
| FR2693925A1 (en) * | 1992-07-23 | 1994-01-28 | Sevenans Inst Polytechnique | Process for the preparation and surface coating and device for carrying out said process |
| FR2715942A1 (en) * | 1994-02-04 | 1995-08-11 | Gec Alsthom Electromec | Coating of components by laser melting of powders |
| JP2016518523A (en) * | 2013-04-12 | 2016-06-23 | マシーネンファブリク ラインハウゼン ゲーエムベーハー | Method and apparatus for creating a structure on a substrate |
| CN106801209A (en) * | 2016-12-28 | 2017-06-06 | 马鞍山蓝科再制造技术有限公司 | A kind of nano thermal spraying technology process for lifting dust cap corrosion resistance |
-
1988
- 1988-06-24 JP JP63156296A patent/JPH028357A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489520A1 (en) * | 1990-11-21 | 1992-06-10 | Sermatech International Inc. | Chamber for applying a thermal spray coating and method of using the same |
| US5389407A (en) * | 1990-11-21 | 1995-02-14 | Sermatech International, Inc. | Thermal spraying coating method |
| FR2693925A1 (en) * | 1992-07-23 | 1994-01-28 | Sevenans Inst Polytechnique | Process for the preparation and surface coating and device for carrying out said process |
| FR2715942A1 (en) * | 1994-02-04 | 1995-08-11 | Gec Alsthom Electromec | Coating of components by laser melting of powders |
| JP2016518523A (en) * | 2013-04-12 | 2016-06-23 | マシーネンファブリク ラインハウゼン ゲーエムベーハー | Method and apparatus for creating a structure on a substrate |
| CN106801209A (en) * | 2016-12-28 | 2017-06-06 | 马鞍山蓝科再制造技术有限公司 | A kind of nano thermal spraying technology process for lifting dust cap corrosion resistance |
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