JPS5544574A - Electroplating pretreating method of inside surface of metal pipe - Google Patents
Electroplating pretreating method of inside surface of metal pipeInfo
- Publication number
- JPS5544574A JPS5544574A JP11827278A JP11827278A JPS5544574A JP S5544574 A JPS5544574 A JP S5544574A JP 11827278 A JP11827278 A JP 11827278A JP 11827278 A JP11827278 A JP 11827278A JP S5544574 A JPS5544574 A JP S5544574A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pickling
- inside surface
- metal pipe
- electroplating
- 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
- Electroplating Methods And Accessories (AREA)
Abstract
PURPOSE: To suppress the effect of produced gas and perform pickling evenly by closing one end of a metal pipe such as of Zr alloy pipe used for coated pipe for nuclear fuel, filling pickling solution therein, yet obliquely holding the metal pipe at the specified angle and subjecting the same to pickling by a static method at the time of performing pickling activating of the inside surface of said metal pipe.
CONSTITUTION: As pretreatment at the electroplating of the inside surface of a metal pipe such as Zr alloy pipe used for coated pipe for nuclear fuel, the inside surface of the pipe is subjected to pickling and activating by the following. Namely, one end of the metal pipe is closed and the pickling solution of NH4F 0.2W1.5 mole, HF 0.05W0.5 mole and NH4F/HF=1.2W15 (molar ratio) is filled in the pipe. Thence, the metal pipe is obliquely held at 5W60° and is subjected to pickling and acvivating treatment by a static method. With this method, acids are not circulated and therefore turbulence caused based on the flow does not occur, and the inside surface of the pipe may be pickled evenly, hence the metal layer of high adhesiveness may be formed by electroplating.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11827278A JPS5544574A (en) | 1978-09-26 | 1978-09-26 | Electroplating pretreating method of inside surface of metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11827278A JPS5544574A (en) | 1978-09-26 | 1978-09-26 | Electroplating pretreating method of inside surface of metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5544574A true JPS5544574A (en) | 1980-03-28 |
Family
ID=14732529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11827278A Pending JPS5544574A (en) | 1978-09-26 | 1978-09-26 | Electroplating pretreating method of inside surface of metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5544574A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364781A (en) * | 1980-02-22 | 1982-12-21 | Ab Asea-Atom | Method of treating zirconium-based alloy tubes |
| CN102995084A (en) * | 2012-11-26 | 2013-03-27 | 宁波市江北名正电机有限公司 | Closed galvanizing method for stamping two ends of steel pipe |
-
1978
- 1978-09-26 JP JP11827278A patent/JPS5544574A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364781A (en) * | 1980-02-22 | 1982-12-21 | Ab Asea-Atom | Method of treating zirconium-based alloy tubes |
| CN102995084A (en) * | 2012-11-26 | 2013-03-27 | 宁波市江北名正电机有限公司 | Closed galvanizing method for stamping two ends of steel pipe |
| CN102995084B (en) * | 2012-11-26 | 2016-01-20 | 宁波市江北名正电机有限公司 | Galvanized method is closed in the punching press of steel pipe two |
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