JPS5627894A - Method for providing aluminum member with heat transmitting surface - Google Patents
Method for providing aluminum member with heat transmitting surfaceInfo
- Publication number
- JPS5627894A JPS5627894A JP10330579A JP10330579A JPS5627894A JP S5627894 A JPS5627894 A JP S5627894A JP 10330579 A JP10330579 A JP 10330579A JP 10330579 A JP10330579 A JP 10330579A JP S5627894 A JPS5627894 A JP S5627894A
- Authority
- JP
- Japan
- Prior art keywords
- heat transmitting
- aluminum member
- treated
- transmitting surface
- treating liquid
- 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
- Chemical Treatment Of Metals (AREA)
Abstract
PURPOSE: To obtain a heat transmitting surface applicable to both evaporation and condensation by a method wherein an aluminum member is treated with demineralized water or distilled water and then treated with a treating liquid containing a predetermined compound or compounds, in a process of forming a heat transmitting surface on an aluminum pipe for a heat exchanger or the like.
CONSTITUTION: An aluminum member is treated with demineralized water or distilled water, to form a conversion coating on the surface of the member. In this case, the temperature is preferably higher than 40°C and pH is preferably 6W13 or higher. Then, the aluminum member is treated with a treating liquid containing one or more compounds selected from the group consisting of silicic acid, tannic acid and tannates. In this case, sodium silicate, sodium tannate or the like is used as the salt in the treating liquid. By such a treatment, the surface of the aluminum member is roughened, and a heat transmitting surface having a large heat transmitting area and an excellent corrosion resistance is obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10330579A JPS5627894A (en) | 1979-08-13 | 1979-08-13 | Method for providing aluminum member with heat transmitting surface |
US06/337,131 US4462842A (en) | 1979-08-13 | 1982-01-05 | Surface treatment process for imparting hydrophilic properties to aluminum articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10330579A JPS5627894A (en) | 1979-08-13 | 1979-08-13 | Method for providing aluminum member with heat transmitting surface |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5627894A true JPS5627894A (en) | 1981-03-18 |
Family
ID=14350509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10330579A Pending JPS5627894A (en) | 1979-08-13 | 1979-08-13 | Method for providing aluminum member with heat transmitting surface |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5627894A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6461683B1 (en) | 2000-10-04 | 2002-10-08 | Lockheed Martin Corporation | Method for inorganic paint to protect metallic surfaces exposed to moisture, salt and extreme temperatures against corrosion |
US6620519B2 (en) | 1998-04-08 | 2003-09-16 | Lockheed Martin Corporation | System and method for inhibiting corrosion of metal containers and components |
CN111455364A (en) * | 2020-05-13 | 2020-07-28 | 太仓市金鹿电镀有限公司 | Environment-friendly chromium-free passivation solution based on silicate and passivation process thereof |
-
1979
- 1979-08-13 JP JP10330579A patent/JPS5627894A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6620519B2 (en) | 1998-04-08 | 2003-09-16 | Lockheed Martin Corporation | System and method for inhibiting corrosion of metal containers and components |
US6461683B1 (en) | 2000-10-04 | 2002-10-08 | Lockheed Martin Corporation | Method for inorganic paint to protect metallic surfaces exposed to moisture, salt and extreme temperatures against corrosion |
CN111455364A (en) * | 2020-05-13 | 2020-07-28 | 太仓市金鹿电镀有限公司 | Environment-friendly chromium-free passivation solution based on silicate and passivation process thereof |
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