YU46710B - PROCEDURE FOR OBTAINING COPPER OR COPPER ALLOY PIPES WHICH HAVE A LAYER OF COPPER OXIDE ON THE INSIDE - Google Patents
PROCEDURE FOR OBTAINING COPPER OR COPPER ALLOY PIPES WHICH HAVE A LAYER OF COPPER OXIDE ON THE INSIDEInfo
- Publication number
- YU46710B YU46710B YU46990A YU46990A YU46710B YU 46710 B YU46710 B YU 46710B YU 46990 A YU46990 A YU 46990A YU 46990 A YU46990 A YU 46990A YU 46710 B YU46710 B YU 46710B
- Authority
- YU
- Yugoslavia
- Prior art keywords
- copper
- volume
- obtaining
- procedure
- layer
- Prior art date
Links
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
POSTUPAK ZA DOBIJANJE CEVI OD BAKRA ILI BAKARNIH LEGURA KOJE SA UNUTRAŠNJE STRANE IMAJU SLOJ BAKARNOG OKSIDA, naznačen time, što se cevi odmašćuju pomoću rastvarača, žare u opsegu temperatura od oko 600 do do 730 C, pri brzini prolaza od 50 do 220m/min, pri čemu se u zavisnosti od prečnika cevi i brzine protočnog žarenja u unutrašnjosti cevi podešava atmosfera žarenja koa se sastoji od 1 do 25 zapr.%, poželjno od 5 do 15 zapr.% kiseonika i od 75 do 99 zapr.%, poželjno od oko 85 do 95 zapr.% inertnog gasa. Prijava sadrži još 1 patentni zahtev.PROCESS FOR OBTAINING COPPER OR COPPER ALLOY PIPES WHICH HAVE A COPPER OXIDE LAYER ON THE INSIDE, characterized in that the pipes are degreased with a solvent, annealed in the temperature range from about 600 to 730 C, at a passing speed of 50 to 50 min wherein, depending on the diameter of the tube and the flow annealing speed, an annealing atmosphere is adjusted inside the tube which consists of 1 to 25% by volume, preferably 5 to 15% by volume of oxygen and 75 to 99% by volume, preferably of approx. 85 to 95% by volume of inert gas. The application contains 1 more patent application.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
YU46990A YU46710B (en) | 1988-08-12 | 1990-03-08 | PROCEDURE FOR OBTAINING COPPER OR COPPER ALLOY PIPES WHICH HAVE A LAYER OF COPPER OXIDE ON THE INSIDE |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3827353A DE3827353A1 (en) | 1988-08-12 | 1988-08-12 | INTERNAL OXIDIZED TUBES |
YU118689A YU46649B (en) | 1988-08-12 | 1989-06-08 | PIPES OF COPPER OR COPPER ALLOYS WHICH HAVE A LAYER OF COPPER OXIDE ON THE INSIDE |
YU46990A YU46710B (en) | 1988-08-12 | 1990-03-08 | PROCEDURE FOR OBTAINING COPPER OR COPPER ALLOY PIPES WHICH HAVE A LAYER OF COPPER OXIDE ON THE INSIDE |
Publications (2)
Publication Number | Publication Date |
---|---|
YU46990A YU46990A (en) | 1991-10-31 |
YU46710B true YU46710B (en) | 1994-04-05 |
Family
ID=27198087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
YU46990A YU46710B (en) | 1988-08-12 | 1990-03-08 | PROCEDURE FOR OBTAINING COPPER OR COPPER ALLOY PIPES WHICH HAVE A LAYER OF COPPER OXIDE ON THE INSIDE |
Country Status (1)
Country | Link |
---|---|
YU (1) | YU46710B (en) |
-
1990
- 1990-03-08 YU YU46990A patent/YU46710B/en unknown
Also Published As
Publication number | Publication date |
---|---|
YU46990A (en) | 1991-10-31 |
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