JPS6439360A - Treatment for internal tube surface - Google Patents
Treatment for internal tube surfaceInfo
- Publication number
- JPS6439360A JPS6439360A JP62192628A JP19262887A JPS6439360A JP S6439360 A JPS6439360 A JP S6439360A JP 62192628 A JP62192628 A JP 62192628A JP 19262887 A JP19262887 A JP 19262887A JP S6439360 A JPS6439360 A JP S6439360A
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- internal tube
- tube surface
- corrosion resistance
- plasma
- 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
PURPOSE:To improve corrosion resistance at an internal tube surface, by forming a coating layer on the internal tube surface by means of plasma spraying and then applying fusing to the surface of the above coating layer. CONSTITUTION:A plasma gas and cooling water are fed to a plasma torch 2 located in a tube 1 to be treated and a metal powder having superior corrosion resistance is also fed to the torch 2, and then, a high voltage is impressed by using a tungsten electrode 3 as an anode and also using the tube 1 as a cathode. As a result, arc discharge occurs and a plasma frame 4 is produced, by which the powder is melted and thermally sprayed on the internal tube surface to form a coating layer 7. Subsequently, a laser beam 8 is applied from a laser head 6 on the above coating layer 7 to fuse the surface of the coating layer 7, by which a fused layer 9 having dense surface is formed. By this method, corrosion resistance at the internal tube surface can be improved, and further, this method is applicable to the partial repair, etc., of a small- diameter tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62192628A JPS6439360A (en) | 1987-08-03 | 1987-08-03 | Treatment for internal tube surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62192628A JPS6439360A (en) | 1987-08-03 | 1987-08-03 | Treatment for internal tube surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6439360A true JPS6439360A (en) | 1989-02-09 |
Family
ID=16294411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62192628A Pending JPS6439360A (en) | 1987-08-03 | 1987-08-03 | Treatment for internal tube surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6439360A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05255832A (en) * | 1992-03-13 | 1993-10-05 | Hitachi Ltd | Surface modifying method for structure and metal-explosion spraying apparatus |
| EP0834599A1 (en) * | 1996-09-26 | 1998-04-08 | Günter Hackerodt | Process for coating inner sliding surfaces of cylinders, especially aluminium surfaces |
| EP0837152A1 (en) * | 1996-10-18 | 1998-04-22 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Process for coating an aluminium alloy device of an internal combustion engine with silicon |
| JP2000087211A (en) * | 1998-09-17 | 2000-03-28 | Dai Ichi High Frequency Co Ltd | High frequency remelting treatment method and device |
| US6719847B2 (en) | 2002-02-20 | 2004-04-13 | Cinetic Automation Corporation | Masking apparatus |
| JP2015512786A (en) * | 2012-02-10 | 2015-04-30 | リモ パテントフェルヴァルトゥング ゲーエムベーハー ウント コー．カーゲーＬＩＭＯ Ｐａｔｅｎｔｖｅｒｗａｌｔｕｎｇ ＧｍｂＨ ＆ Ｃｏ．ＫＧ | Apparatus for processing the surface of a workpiece or for post-processing a coating on the outer or inner surface of the workpiece |
-
1987
- 1987-08-03 JP JP62192628A patent/JPS6439360A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05255832A (en) * | 1992-03-13 | 1993-10-05 | Hitachi Ltd | Surface modifying method for structure and metal-explosion spraying apparatus |
| EP0834599A1 (en) * | 1996-09-26 | 1998-04-08 | Günter Hackerodt | Process for coating inner sliding surfaces of cylinders, especially aluminium surfaces |
| EP0837152A1 (en) * | 1996-10-18 | 1998-04-22 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Process for coating an aluminium alloy device of an internal combustion engine with silicon |
| JP2000087211A (en) * | 1998-09-17 | 2000-03-28 | Dai Ichi High Frequency Co Ltd | High frequency remelting treatment method and device |
| US6719847B2 (en) | 2002-02-20 | 2004-04-13 | Cinetic Automation Corporation | Masking apparatus |
| JP2015512786A (en) * | 2012-02-10 | 2015-04-30 | リモ パテントフェルヴァルトゥング ゲーエムベーハー ウント コー．カーゲーＬＩＭＯ Ｐａｔｅｎｔｖｅｒｗａｌｔｕｎｇ ＧｍｂＨ ＆ Ｃｏ．ＫＧ | Apparatus for processing the surface of a workpiece or for post-processing a coating on the outer or inner surface of the workpiece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1093433A (en) | Surface alloying and heat treating processes | |
| US7342197B2 (en) | Plasma torch with corrosive protected collimator | |
| CA1300694C (en) | High power extended arc plasma spray method | |
| CA1170315A (en) | Vacuum-arc plasma apparatus for producing coatings | |
| US20040238511A1 (en) | Method and apparatus for initiating welding arc with aid of vaporized chemical | |
| US4420346A (en) | Method of preparing contacts and electrodes of electric vacuum apparatuses | |
| JPS6199672A (en) | Method and apparatus for surface treatment of article to be processed | |
| US5618451A (en) | High current plasma arc welding electrode and method of making the same | |
| JPH02177284A (en) | Manufacture of ignition plug electrode | |
| US4555612A (en) | Plasma jet cleaning apparatus and method | |
| US2847555A (en) | High pressure arc process and apparatus | |
| JPS6439360A (en) | Treatment for internal tube surface | |
| Houldcroft | Welding processes | |
| US3515839A (en) | Plasma torch | |
| CN105618933B (en) | A kind of efficiently high-quality laser micro arc plasma complex welding method | |
| JPS60106688A (en) | Laser working device | |
| JPS6369959A (en) | Pore sealing treatment for thermally sprayed film | |
| JPS555125A (en) | Plasma arc build-up welding method by powder metals or other | |
| US6686557B1 (en) | Nonflammable ternary gas mix for high pressure plasmas | |
| DE19927557A1 (en) | Process for pre-treating aluminum or magnesium workpieces to be welded or soldered comprises producing arc discharge between electrode and the workpiece surface | |
| US4575606A (en) | Method of electroslag welding and flux | |
| JPS60234783A (en) | Laser beam machining device | |
| JPH03477A (en) | Welding equipment utilizing combined heat sources | |
| JPS6462291A (en) | Welding method for al alloy | |
| JP2913018B2 (en) | Metal surface treatment method |