ES341815A1 - Improvements in or relating to methods of and apparatus for manufacturing Heat Exchanger Tubes - Google Patents
Improvements in or relating to methods of and apparatus for manufacturing Heat Exchanger TubesInfo
- Publication number
- ES341815A1 ES341815A1 ES341815A ES341815A ES341815A1 ES 341815 A1 ES341815 A1 ES 341815A1 ES 341815 A ES341815 A ES 341815A ES 341815 A ES341815 A ES 341815A ES 341815 A1 ES341815 A1 ES 341815A1
- Authority
- ES
- Spain
- Prior art keywords
- tube
- strip
- wire
- layer
- copper
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
- B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0012—Brazing heat exchangers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Coating With Molten Metal (AREA)
Abstract
A heat exchanger tube is made by providing a helix of wire or strip 2 on a multi-layer strip 3 of steel and a copper layer on at least the exterior and heating the assembly to a temperature between the melting-point of copper and steel to braze the layers of the strip together and the wire or strip to the tube. The helix is closely wound and expanded along the tube by a sleeve 4 with a pair of pegs 5, 6 which separate the tuns as the sleeve rotates. The strip for the fin is also multi-layer with a steel core and a layer of copper on each side. The wire may be copper-coated and wetted with flux. Alternatively the wire is uncoated and the outer layer of the tube is made thicker. The helix may be wound directly on to the tube or on to a mandrel (not shown) whose diameter is greater than the tube. The strip or wire is fixed in a slot in the tube before axial expansion by the sleeve 4. The mandrel may be a frusto-conical sleeve rotated at the same speed as the tube during the axial feed of the tube therethrough. The heat exchanger may be zinc-plated after assembly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM0069866 | 1966-06-16 | ||
| DEM0071721 | 1966-11-22 | ||
| DEM0072290 | 1967-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES341815A1 true ES341815A1 (en) | 1969-05-16 |
Family
ID=27211683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES341815A Expired ES341815A1 (en) | 1966-06-16 | 1967-06-15 | Improvements in or relating to methods of and apparatus for manufacturing Heat Exchanger Tubes |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1602301A1 (en) |
| ES (1) | ES341815A1 (en) |
| GB (1) | GB1171230A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270973A (en) * | 1995-03-30 | 1996-10-18 | Mitsubishi Electric Corp | Air conditioner |
| US11504814B2 (en) | 2011-04-25 | 2022-11-22 | Holtec International | Air cooled condenser and related methods |
| US20150027679A1 (en) * | 2012-01-18 | 2015-01-29 | Holtec International | Finned tube assemblies for heat exchangers |
| CN105026087A (en) | 2012-12-03 | 2015-11-04 | 霍尔泰克国际股份有限公司 | Brazing compositions and uses thereof |
-
1967
- 1967-01-03 DE DE19671602301 patent/DE1602301A1/en active Pending
- 1967-06-15 GB GB2765567A patent/GB1171230A/en not_active Expired
- 1967-06-15 ES ES341815A patent/ES341815A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1602301A1 (en) | 1971-07-08 |
| GB1171230A (en) | 1969-11-19 |
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