JPS55161075A - Electric protecting method for metallic material - Google Patents
Electric protecting method for metallic materialInfo
- Publication number
- JPS55161075A JPS55161075A JP6963779A JP6963779A JPS55161075A JP S55161075 A JPS55161075 A JP S55161075A JP 6963779 A JP6963779 A JP 6963779A JP 6963779 A JP6963779 A JP 6963779A JP S55161075 A JPS55161075 A JP S55161075A
- Authority
- JP
- Japan
- Prior art keywords
- water chamber
- metallic material
- electrodes
- power source
- high frequency
- 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
- 239000007769 metal material Substances 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 229910001018 Cast iron Inorganic materials 0.000 abstract 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 2
- 239000011701 zinc Substances 0.000 abstract 2
- 229910052725 zinc Inorganic materials 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910000936 Naval brass Inorganic materials 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
PURPOSE: To decrease the degree of corrosion of metallic material, by arranging plural electrodes face to face through a metallic material, by installing a rectifier between both electrodes so as to supply electric power to the electrodes by a AC power source.
CONSTITUTION: For example, the cooling water chamber 11 (corresponds to a metallic material) of a water-cooled transformer is made of cast iron. In the water chamber 11 is arranged three-in-a-group zinc electrodes 12a, 12b. The zinc electrodes 12a, 12b are connected respectively to different terminals 14a, 14b of a high frequency power source 14. The water chamber 11 is connected to the terminals 14a, 14b of the high frequency power source 14 through a rectifier 15. The output frequency of the high frequency power source 14 is 5kHz, and the cooling tubes are made of copper, and the tube sheets are made of naval brass. when the cooling tubes, the tube sheets, and the water chamber are energized at 100mA/m2, and the protective potential is maintained at -1.0101 volts, the degree of corrosion of the cast iron of the water chamber near the tube sheets is decreased to 20mg/dm2/day, or one twentieth of that by conventional methods.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54069637A JPS595669B2 (en) | 1979-06-01 | 1979-06-01 | Cathodic protection method for metal objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54069637A JPS595669B2 (en) | 1979-06-01 | 1979-06-01 | Cathodic protection method for metal objects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55161075A true JPS55161075A (en) | 1980-12-15 |
| JPS595669B2 JPS595669B2 (en) | 1984-02-06 |
Family
ID=13408569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54069637A Expired JPS595669B2 (en) | 1979-06-01 | 1979-06-01 | Cathodic protection method for metal objects |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS595669B2 (en) |
-
1979
- 1979-06-01 JP JP54069637A patent/JPS595669B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS595669B2 (en) | 1984-02-06 |
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