PL274547A1 - Method of cupper pipes manufacture - Google Patents
Method of cupper pipes manufactureInfo
- Publication number
- PL274547A1 PL274547A1 PL88274547A PL27454788A PL274547A1 PL 274547 A1 PL274547 A1 PL 274547A1 PL 88274547 A PL88274547 A PL 88274547A PL 27454788 A PL27454788 A PL 27454788A PL 274547 A1 PL274547 A1 PL 274547A1
- Authority
- PL
- Poland
- Prior art keywords
- tubes
- films
- hard
- copper
- pitting
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
- B24C3/327—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes by an axially-moving flow of abrasive particles without passing a blast gun, impeller or the like along the internal surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Heat Treatment Of Articles (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- ing And Chemical Polishing (AREA)
- Cleaning In General (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Chemical Treatment Of Metals (AREA)
- Saccharide Compounds (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Processing Of Meat And Fish (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
The corrosion damage, particularly that due to local pitting, which occurs on hard-drawn copper tubes used in the sanitary sector is generally caused by carbon-containing films but also by oxide films. A carbon film on the inside of the tube is formed, for example, if the drawing compound added when drawing the tube is subjected to excessive heat. To avoid these damaging films and to improve the pitting resistance of hard tubes made of copper or copper-based alloys, the tubes are first of all degreased. In a further process step, the inner surface of the tubes is then treated with a blasting abrasive in order to establish a minimum roughness. A mean roughness of 0.8 to 1.0 mu m has proven particularly advantageous. The hard-drawn tubes treated by the method according to the invention have none of the films which promote pitting, even after brazing and/or hot bending.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3730367A DE3730367C2 (en) | 1987-09-10 | 1987-09-10 | Process for the production of pitting-resistant hard drawn tubes made of copper or copper alloys |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL274547A1 true PL274547A1 (en) | 1989-05-02 |
| PL163146B1 PL163146B1 (en) | 1994-02-28 |
Family
ID=6335681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL88274547A PL163146B1 (en) | 1987-09-10 | 1988-09-07 | Method of cupper pipes manufacture |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0306810B2 (en) |
| AT (1) | ATE103225T1 (en) |
| DE (2) | DE3730367C2 (en) |
| DK (2) | DK493288D0 (en) |
| ES (1) | ES2050684T5 (en) |
| FI (1) | FI94496B (en) |
| GR (1) | GR3033568T3 (en) |
| IE (1) | IE63028B1 (en) |
| PL (1) | PL163146B1 (en) |
| PT (1) | PT88473B (en) |
| YU (1) | YU46572B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4417455C2 (en) | 1994-05-19 | 1997-09-25 | Wieland Werke Ag | Use of a corrosion-resistant tube with inner oxide layers |
| FI107543B (en) | 1998-07-30 | 2001-08-31 | Outokumpu Oy | A method for making a copper tube |
| FI20001467A (en) * | 2000-06-20 | 2001-12-21 | Outokumpu Oy | Process for making internally coated copper or copper alloy tubes |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2308436A1 (en) * | 1975-04-25 | 1976-11-19 | Cit Alcatel | Avoiding carbon deposits during annealing, from lubricants - in the bore of drawn copper tubes, by sweeping with nitrogen |
| LU81564A1 (en) * | 1979-07-31 | 1981-03-24 | Liege Usines Cuivre Zinc | METHOD FOR MANUFACTURING TUBES, TUBES OBTAINED BY THIS PROCESS AND THEIR USE IN CONDENSERS AND HEAT EXCHANGERS |
| DE3018036A1 (en) * | 1980-05-10 | 1981-11-12 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | METHOD OF TREATING COPPER PIPES |
| IT1160196B (en) * | 1983-02-24 | 1987-03-04 | Dalmine Spa | HOT DEOXIDATION PROCESS OF SEMI-FINISHED METAL TUBES |
| DE3415376A1 (en) * | 1984-04-25 | 1985-11-07 | Uhlmann, Otto, 3167 Burgdorf | Method and apparatus for degreasing tubes |
| US4579596A (en) * | 1984-11-01 | 1986-04-01 | Union Carbide Corporation | In-situ removal of oily deposits from the interior surfaces of conduits |
-
1987
- 1987-09-10 DE DE3730367A patent/DE3730367C2/en not_active Expired - Fee Related
-
1988
- 1988-08-31 DE DE88114157T patent/DE3888605D1/en not_active Expired - Fee Related
- 1988-08-31 EP EP88114157A patent/EP0306810B2/en not_active Expired - Lifetime
- 1988-08-31 AT AT88114157T patent/ATE103225T1/en not_active IP Right Cessation
- 1988-08-31 ES ES88114157T patent/ES2050684T5/en not_active Expired - Lifetime
- 1988-09-02 FI FI884071A patent/FI94496B/en not_active Application Discontinuation
- 1988-09-05 DK DK493288A patent/DK493288D0/en not_active Application Discontinuation
- 1988-09-06 DK DK495488A patent/DK170250B1/en not_active IP Right Cessation
- 1988-09-07 PL PL88274547A patent/PL163146B1/en not_active IP Right Cessation
- 1988-09-07 IE IE270788A patent/IE63028B1/en not_active IP Right Cessation
- 1988-09-08 YU YU171088A patent/YU46572B/en unknown
- 1988-09-09 PT PT88473A patent/PT88473B/en not_active IP Right Cessation
-
2000
- 2000-05-31 GR GR20000401261T patent/GR3033568T3/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DK495488A (en) | 1989-03-11 |
| ATE103225T1 (en) | 1994-04-15 |
| DK493288D0 (en) | 1988-09-05 |
| FI94496B (en) | 1995-06-15 |
| IE63028B1 (en) | 1995-03-22 |
| DK170250B1 (en) | 1995-07-17 |
| PL163146B1 (en) | 1994-02-28 |
| YU46572B (en) | 1993-11-16 |
| YU171088A (en) | 1990-04-30 |
| FI884071A0 (en) | 1988-09-02 |
| DE3888605D1 (en) | 1994-04-28 |
| EP0306810B1 (en) | 1994-03-23 |
| PT88473A (en) | 1988-10-01 |
| PT88473B (en) | 1992-11-30 |
| DE3730367A1 (en) | 1989-03-23 |
| GR3033568T3 (en) | 2000-09-29 |
| ES2050684T3 (en) | 1994-06-01 |
| ES2050684T5 (en) | 2000-07-01 |
| EP0306810A3 (en) | 1990-05-30 |
| DK495488D0 (en) | 1988-09-06 |
| FI884071A (en) | 1989-03-11 |
| EP0306810A2 (en) | 1989-03-15 |
| IE882707L (en) | 1989-03-10 |
| DE3730367C2 (en) | 1997-10-09 |
| EP0306810B2 (en) | 2000-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| PL274547A1 (en) | Method of cupper pipes manufacture | |
| US2559445A (en) | Method for removing scale from steel | |
| DE3678539D1 (en) | METHOD FOR PRODUCING A HIGH-TEMPERATURE-RESISTANT ALLOY SUITABLE FOR HEAT EXCHANGERS. | |
| DK169750B1 (en) | Internally oxidized pipe, method of making such pipe and use of such pipe | |
| US1821702A (en) | Conductor for heat exchange apparatus | |
| JPS60211053A (en) | High strength alloy for industrial container | |
| DE69909565D1 (en) | Process for the production of copper pipes | |
| JPH0639447A (en) | Manufacture of corrosion-resisting joint | |
| IT1155628B (en) | COPPER RESISTANT TUBES IN CORROSION RESISTANT COPPER ALLOYS AND PROCEDURE FOR THEIR MANUFACTURE | |
| JPS5278151A (en) | Heat exchanger and its manufacturing method | |
| SU701734A1 (en) | Method of making bimetallic wire | |
| ES2080282T3 (en) | COPPER TUBES WITH IMPROVED CORROSION RESISTANCE AND PROCEDURE TO OBTAIN THEM. | |
| UA18937A (en) | StarWriterMETHOD FOR RESTORATION OF PIPES FROM COPPER AND ALLOYS THEREOF | |
| Hashimoto et al. | Pitting Corrosion of the Boiler Tubes in a Thermal Power Station | |
| Likhareva et al. | Corrosion--Erosion Wear of Spiral and Smooth Surfaced Tubes of Alloy MNZh 5-1 in Steam Turbine Condensers | |
| JPH09296997A (en) | Copper or copper alloy tube for heat exchanger | |
| JP2001183089A (en) | Anti-corrosion copper or copper alloy pipe having bent segment, its manufacturing method and water supplying and hot water supplying device | |
| JPS6111138B2 (en) | ||
| JPS57120717A (en) | Lining shaft | |
| JPS62250188A (en) | Method for preventing corrosion of cupronickel tube in heat exchange apparatus | |
| JPS54162668A (en) | Bending method of conductor | |
| JPS59207505A (en) | Method of producing optical unit of aluminum-optical fiber composite aerial ground wire | |
| JPS5858596B2 (en) | Aluminum plated steel pipe for heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Decisions on the lapse of the protection rights |
Effective date: 20070907 |