JPS56108883A - Electrically protecting method for embedded metallic body - Google Patents
Electrically protecting method for embedded metallic bodyInfo
- Publication number
- JPS56108883A JPS56108883A JP1191480A JP1191480A JPS56108883A JP S56108883 A JPS56108883 A JP S56108883A JP 1191480 A JP1191480 A JP 1191480A JP 1191480 A JP1191480 A JP 1191480A JP S56108883 A JPS56108883 A JP S56108883A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- potential
- electric
- metallic body
- electrode
- 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.)
- Granted
Links
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
PURPOSE: To give stable electric potential to an embedded Al pipe to inhibit corrosion by placing a metallic body as a reference electrode having electric potential baser than that of the Al pipe and a wiry anode along the Al pipe, detecting the direction of an electric current flowing between the Al pipe and metallic body, and turning on a DC power source.
CONSTITUTION: By connecting embedded Al pipe 12 to metallic body 14 having electric potential baser than that of pipe 12 through detector 15, an electric current flows from pipe 12 toward body 14. That is, the current flows in the B→A direction, and points A, B show negative and positive polarities, respectively, so the signal of a voltage rise is sent from detector 15 to DC power source device 13. In accordance with the signal, device 13 is actuated to form a circuit using electrode 11 as a positive pole and pipe 12 and body 14 as negative poles. As the potential difference between electrode 11 and pipe 12 is increased, the value of the current flowing from B to A is lowered. When the potential of pipe 12 reaches that for electric protection, the value of the current between points A, B becomes zero, and the control circuit of device 13 acts to maintain the constant potential. Thus, pipe 12 is always maintained at stable potential for electric protection.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55011914A JPS609594B2 (en) | 1980-01-31 | 1980-01-31 | Electrolytic protection method for buried metal objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55011914A JPS609594B2 (en) | 1980-01-31 | 1980-01-31 | Electrolytic protection method for buried metal objects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56108883A true JPS56108883A (en) | 1981-08-28 |
| JPS609594B2 JPS609594B2 (en) | 1985-03-11 |
Family
ID=11790967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55011914A Expired JPS609594B2 (en) | 1980-01-31 | 1980-01-31 | Electrolytic protection method for buried metal objects |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609594B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018004347A (en) * | 2016-06-29 | 2018-01-11 | 株式会社ピーエス三菱 | Steel material potential measurement method |
| WO2024185270A1 (en) * | 2023-03-09 | 2024-09-12 | 株式会社神戸製鋼所 | Heat exchanger |
-
1980
- 1980-01-31 JP JP55011914A patent/JPS609594B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018004347A (en) * | 2016-06-29 | 2018-01-11 | 株式会社ピーエス三菱 | Steel material potential measurement method |
| WO2024185270A1 (en) * | 2023-03-09 | 2024-09-12 | 株式会社神戸製鋼所 | Heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS609594B2 (en) | 1985-03-11 |
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