JPS60215753A - Coating method by thermal spray and melt diffusion - Google Patents
Coating method by thermal spray and melt diffusionInfo
- Publication number
- JPS60215753A JPS60215753A JP7092584A JP7092584A JPS60215753A JP S60215753 A JPS60215753 A JP S60215753A JP 7092584 A JP7092584 A JP 7092584A JP 7092584 A JP7092584 A JP 7092584A JP S60215753 A JPS60215753 A JP S60215753A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- steel
- melt
- alloy
- present
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔本発明の技術分野〕
本発明は、ボイラ、タービン、ディーゼル及び各種の熱
交換器の鋼管々どに使用するステンレス鋼の表面に対す
る合金の溶射・溶融拡散コーティング法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for thermal spraying and fusion diffusion coating of an alloy on the surface of stainless steel used for steel pipes of boilers, turbines, diesel engines, and various heat exchangers. .
ボイラを初めとする各種の熱交換器には主に鋼管が使用
され、鋼管の寿命を延長する一つの方策として溶射によ
るコーティングが施される例は見受けられる。溶射法は
表面コーティング法の中で°も一つの有力な手法であり
、広く採用される方向にある。Steel pipes are mainly used in various heat exchangers including boilers, and there are cases where thermal spray coating is applied as a measure to extend the life of steel pipes. Thermal spraying is one of the most powerful methods among surface coating methods, and is expected to be widely adopted.
しかし、現状の溶射法では母材に対する溶射層の接合強
度が低く、シかし接合力のばらつきも大きい。したがっ
て現状においては繰返し応力を受ける場合や、振動その
他に伴う衝撃的な応力を受ける場合に線、母材に対する
溶射層の接合力が不足するため実用される例は少ない。However, in the current thermal spraying method, the bonding strength of the sprayed layer to the base material is low, and there are large variations in the bonding strength. Therefore, at present, there are few examples of practical use because the bonding force of the sprayed layer to the wire or base material is insufficient when subjected to repeated stress or shock stress due to vibration or the like.
一方溶射層の母材に対する接合力を高める方法として溶
射後、溶射層を加熱して溶融させ、母材と溶射層に金属
結合を生じさせる方式もあるが、ボイラ管壁のように大
面積を有する機器に対してこれを適用することはコスト
的に問題があシ、実際に使用される例は少ない。On the other hand, as a method to increase the bonding strength of the sprayed layer to the base material, there is a method of heating and melting the sprayed layer after spraying to create a metallic bond between the base material and the sprayed layer. It is costly to apply this to devices that have the same technology, and there are only a few cases where it is actually used.
本発明は、ボイラ、タービン、ディーゼルなどの機器さ
らには各種の熱交換器の様に高温でしかも腐食環境にあ
るもの、または燃焼生成物の衝突によシ摩耗を受ける環
境にさらされる部材に対してその耐久性を改善するため
のコーティング技術を提供することを目的とする。The present invention is applicable to equipment such as boilers, turbines, diesel engines, and various heat exchangers that are exposed to high temperature and corrosive environments, or that are exposed to environments that are subject to wear due to collisions of combustion products. The objective is to provide a coating technology to improve the durability of
そして、本発明は、上記目的を達成する手段として、溶
射と溶融拡散接合とを併用する点にある。すなわち、本
発明は、ステンレス鋼の表面に合金を被覆するコーティ
ング法において、該ステンレス鋼の表面に耐酸化、耐食
または耐摩耗性を有する自溶性合金を溶射し、次いで、
該ステンレス鋼の溶接に伴う材質の劣化を回復させるた
めに行う溶体化熱処理によって溶射層を溶融拡散させる
ことを特徴とする溶射、溶融拡散コーティング法である
。The present invention uses thermal spraying and melt-diffusion bonding together as a means to achieve the above object. That is, the present invention provides a coating method for coating the surface of stainless steel with an alloy, in which a self-fluxing alloy having oxidation resistance, corrosion resistance, or wear resistance is thermally sprayed on the surface of the stainless steel, and then,
This is a thermal spraying and fusion diffusion coating method characterized by melting and diffusing the sprayed layer through solution heat treatment performed to recover the deterioration of the material due to welding of the stainless steel.
本発明では、溶射と溶融拡散接合を併用することによシ
、母材に対する溶射層の接合強度のばらつきを少なくシ
、さらにこれを大幅に改善することが可能になる。また
、本発明では、溶融拡散処理をステンレス鋼の溶体化処
理に便乗して行うため、溶射層の溶融拡散処理を省略す
ることでき、その分コスト低減が可能になるものである
。In the present invention, by using thermal spraying and melt-diffusion bonding in combination, it is possible to reduce variations in the bonding strength of the thermally sprayed layer to the base material and to significantly improve this. Furthermore, in the present invention, since the melting diffusion treatment is carried out piggybacking on the solution treatment of stainless steel, the melting diffusion treatment of the sprayed layer can be omitted, and costs can be reduced accordingly.
以下、本発明を第１図及び第２図に基づいて詳細に説明
する。Hereinafter, the present invention will be explained in detail based on FIGS. 1 and 2.
第１図は本発明によシスチンレス鋼管の母材１の表面に
溶融点が１１００以下になるように作られた主成分が’
Ｎ１−０ｒ−８１−Ｂ よシなる金属を溶射により形成
したものを拡大して模式的に示したものである。すなわ
ち第１図で１は母材金属であり、２は溶射によシ形成し
た溶射コーティング層である。Figure 1 shows that the main component made to have a melting point of 1100 or less is formed on the surface of the base material 1 of cystine-less steel pipe according to the present invention.
N1-0r-81-B This is an enlarged schematic diagram of a product formed by thermal spraying of a different metal. That is, in FIG. 1, 1 is a base metal, and 2 is a thermal spray coating layer formed by thermal spraying.
第２図は本発明の第１図に示す溶射によりコーティング
したものをステンレス鋼の溶体化処理（１１００℃程度
に加熱）に便乗して加熱し、コーティング層を溶融させ
たものであシ、これを模式的に示したものであって、図
中３は溶融拡散コーティング層である。Figure 2 shows a coating coated by thermal spraying as shown in Figure 1 of the present invention, which was heated by taking advantage of the solution treatment of stainless steel (heated to about 1100°C) to melt the coating layer. is schematically shown, and 3 in the figure is a melt diffusion coating layer.
本発明では、第１図に示すように、母材１の上に耐酸化
、耐食、または耐摩耗性を有する金属を溶射によシ形成
し、次いで、第２図に示すようにこれにステンレス鋼の
溶体化処理を施すことによシ、母材１と溶射層の間には
金属結合が生じ、母材１に対する溶射層の接合強さは著
しく、改善される。In the present invention, as shown in FIG. 1, a metal having oxidation resistance, corrosion resistance, or wear resistance is formed on a base material 1 by thermal spraying, and then, as shown in FIG. By subjecting the steel to solution treatment, a metallic bond is formed between the base material 1 and the sprayed layer, and the bonding strength of the sprayed layer to the base material 1 is significantly improved.
（本発明の実施例）
下記表１のＮ１−０ｒ−１３１−Ｂ 系自溶接合金を用
い、表２に示すようにステンレス鋼に各種条件で溶射し
、溶体化処理した。(Example of the present invention) Using the N1-0r-131-B self-welding alloy shown in Table 1 below, it was thermally sprayed onto stainless steel under various conditions as shown in Table 2, and subjected to solution treatment.
この結果、母材であるステンレス鋼と溶射層の間には金
属結合を生じ母材に対する溶射層の接合性は著しく改善
されていることが確認された。As a result, it was confirmed that a metallic bond was formed between the stainless steel base material and the sprayed layer, and the bondability of the sprayed layer to the base material was significantly improved.
本発明は、以上詳記したように、溶射と溶融拡散接合と
を併用するものであるから、次の（１）〜（３）の顕著
な効果が生ずるものである。As described in detail above, the present invention uses thermal spraying and melt-diffusion bonding in combination, so that the following remarkable effects (1) to (3) are produced.
（１）溶射によって母材上に形成された耐酸化、耐食、
または耐摩耗性を有するコーティング層に溶融処理を行
うことにより、コーティング層の母材に対する接合力を
大幅に強化するととができ、さらに接合強度のばらつき
を大幅に少なくする仁とができる。(1) Oxidation and corrosion resistance formed on the base material by thermal spraying,
Alternatively, by melting a wear-resistant coating layer, it is possible to significantly strengthen the bonding force of the coating layer to the base material, and furthermore, it is possible to significantly reduce variations in bonding strength.
（２）母材の表面に高温での緒特性の優れた層を形成す
ることによシ機器の耐久性を大幅に改善することができ
る。(2) By forming a layer with excellent durability at high temperatures on the surface of the base material, the durability of equipment can be greatly improved.
（３）溶射層の溶融拡散処理をこれ単一の目的で行うこ
とを避け、ステンレス鋼の溶接に伴う耐食性の劣化を回
復させるために行う溶体化処理に便乗して行うことによ
り、経費増を避けることが可能になる。(3) Avoiding the melt-diffusion treatment of the thermally sprayed layer for a single purpose, and instead performing it piggybacking on the solution treatment performed to recover the corrosion resistance caused by welding of stainless steel, increasing costs. possible to avoid.
第１図は本発明の第１工程である溶射によシ形成したコ
ーティング層を、また、第２図は本発明の第２工程であ
る溶融拡散によシ形成したコーティング層をそれぞれ拡
大して模式的に示し要因である。
１・・・母材
２・・・溶射コーティング層
３・・・溶融拡散コーティング層
復代理人 内 １） 明
復代理人 萩 原 亮 −Figure 1 is an enlarged view of the coating layer formed by thermal spraying, which is the first step of the present invention, and Figure 2 is an enlarged view of the coating layer formed by melt diffusion, which is the second step of the present invention. The factors are shown schematically. 1... Base material 2... Thermal spray coating layer 3... Melt diffusion coating layer agent 1) Meifu agent Ryo Hagihara -
Claims (1)
おいて、該ステンレス鋼の表面に耐酸化、耐食または耐
摩耗性を有する自溶性合金を溶射し、次いで、該ステン
レス鋼の溶接に伴う材質の劣化を回復させるために行う
溶体化熱処理によって溶射層を溶融拡散させることを特
徴とする溶射、溶融拡散コーティング法。In a coating method that coats the surface of stainless steel with an alloy, a self-fluxing alloy that is oxidation-resistant, corrosion-resistant, or wear-resistant is sprayed onto the surface of the stainless steel, and then the deterioration of the material caused by welding the stainless steel is restored. Thermal spraying and fusion diffusion coating methods are characterized by melting and diffusing the sprayed layer through solution heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7092584A JPS60215753A (en) | 1984-04-11 | 1984-04-11 | Coating method by thermal spray and melt diffusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7092584A JPS60215753A (en) | 1984-04-11 | 1984-04-11 | Coating method by thermal spray and melt diffusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60215753A true JPS60215753A (en) | 1985-10-29 |
Family
ID=13445569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7092584A Pending JPS60215753A (en) | 1984-04-11 | 1984-04-11 | Coating method by thermal spray and melt diffusion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60215753A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816525A1 (en) * | 1996-07-05 | 1998-01-07 | Metallgesellschaft Ag | Screen plate |
| JP2004307938A (en) * | 2003-04-07 | 2004-11-04 | Honda Motor Co Ltd | Method for coupling thermal spraying layer and iron and steel members |
| CN103090118A (en) * | 2013-01-28 | 2013-05-08 | 扬州安泰威合金硬面科技有限公司 | Wear-resisting and corrosion-resisting alloy coating long and thin composite tube and production method thereof |
| CN104180706A (en) * | 2014-08-22 | 2014-12-03 | 安徽电力股份有限公司淮南田家庵发电厂 | Low-temperature economizer tube surface protective layer and forming method thereof |
-
1984
- 1984-04-11 JP JP7092584A patent/JPS60215753A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816525A1 (en) * | 1996-07-05 | 1998-01-07 | Metallgesellschaft Ag | Screen plate |
| JP2004307938A (en) * | 2003-04-07 | 2004-11-04 | Honda Motor Co Ltd | Method for coupling thermal spraying layer and iron and steel members |
| CN103090118A (en) * | 2013-01-28 | 2013-05-08 | 扬州安泰威合金硬面科技有限公司 | Wear-resisting and corrosion-resisting alloy coating long and thin composite tube and production method thereof |
| CN104180706A (en) * | 2014-08-22 | 2014-12-03 | 安徽电力股份有限公司淮南田家庵发电厂 | Low-temperature economizer tube surface protective layer and forming method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110170768B (en) | Flux-cored wire for nickel-based arc spraying and preparation method thereof | |
| CN102211235B (en) | Soldering method of heterogeneous stainless steel oil injection nozzle nut of engine | |
| CN102922230A (en) | Method for brazing martensitic stainless steel rectifier assembly through vacuum | |
| BG64842B1 (en) | Method for making a joint between copper and stainless steel | |
| JPS60215753A (en) | Coating method by thermal spray and melt diffusion | |
| JP2001026855A (en) | Production of nickel solder-coated stainless steel sheet excellent in self-brazability | |
| JPS60227997A (en) | Electrode material for welding | |
| JPH1046315A (en) | Corrosion resistant heat transfer tube | |
| US3244553A (en) | Process of lead cladding using molten lead | |
| JP3587944B2 (en) | High frequency resistance welding method for plated steel sheet containing Al in plating layer | |
| JPH04128359A (en) | Formation of thermally sprayed metal film | |
| JPS62149887A (en) | Surface coated steel pipe having superior corrosion resistance and its manufacture | |
| JP2004074202A (en) | Surface-coated casting process | |
| JP2931384B2 (en) | Continuous casting roll with excellent heat crack resistance | |
| JPS60125364A (en) | Coating method by thermal spraying and meltdiffusion | |
| JP2564327B2 (en) | Anticorrosion method for continuous casting rolls | |
| SU688308A1 (en) | Method and composition for preparing articles of aluminium and its alloys to resistance spot welding | |
| JPH0219452A (en) | Electron beam coating method | |
| JPS59163094A (en) | Method for preventing weld cracking in heat and corrosion resistant alloy steel | |
| RU2101147C1 (en) | Brazing method | |
| JPS62149886A (en) | Manufacture of surface coated steel pipe having superior corrosion resistance | |
| JP2001259823A (en) | Method for forming coated layer onto inner peripheral surface in metallic tube | |
| JPS63242459A (en) | Method for joining molten metal with different metal using thermal sprayed film | |
| JPH05220587A (en) | Manufacture of clad steel | |
| JPS6396360A (en) | Metallic gasket |