JPS6462480A - Production of zn coated tube material for heat exchanger made of al - Google Patents
Production of zn coated tube material for heat exchanger made of alInfo
- Publication number
- JPS6462480A JPS6462480A JP21974987A JP21974987A JPS6462480A JP S6462480 A JPS6462480 A JP S6462480A JP 21974987 A JP21974987 A JP 21974987A JP 21974987 A JP21974987 A JP 21974987A JP S6462480 A JPS6462480 A JP S6462480A
- Authority
- JP
- Japan
- Prior art keywords
- tube material
- alloy
- production
- heat exchanger
- coated tube
- 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 inhibit the evaporation in Zn from an extruded tube material of Al (alloy) coated with Zn (alloy) during brazing, by treating the tube material with steam at a high temp. CONSTITUTION:The surface of an extruded tube material of Al (alloy) is coated with Zn (alloy) and the surface of the resulting Zn (alloy) coating layer is oxidized by treatment with water or steam at a high temp. to form an oxide film. This oxide film inhibits the evaporation of Zn during brazing in gaseous N2 or in vacuum and suppresses the contamination of a brazing furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21974987A JPS6462480A (en) | 1987-09-02 | 1987-09-02 | Production of zn coated tube material for heat exchanger made of al |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21974987A JPS6462480A (en) | 1987-09-02 | 1987-09-02 | Production of zn coated tube material for heat exchanger made of al |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6462480A true JPS6462480A (en) | 1989-03-08 |
Family
ID=16740390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21974987A Pending JPS6462480A (en) | 1987-09-02 | 1987-09-02 | Production of zn coated tube material for heat exchanger made of al |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6462480A (en) |
-
1987
- 1987-09-02 JP JP21974987A patent/JPS6462480A/en active Pending
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