GB1468710A - Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators - Google Patents
Methods of forming re-entrant cavities in the surface of heat exchange members or ebulatorsInfo
- Publication number
- GB1468710A GB1468710A GB1898174A GB1898174A GB1468710A GB 1468710 A GB1468710 A GB 1468710A GB 1898174 A GB1898174 A GB 1898174A GB 1898174 A GB1898174 A GB 1898174A GB 1468710 A GB1468710 A GB 1468710A
- Authority
- GB
- United Kingdom
- Prior art keywords
- identations
- ebullator
- tube
- heat exchange
- entrant cavities
- 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
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
- F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
Abstract
1468710 Making heat exchangers; rolling; stamping UNITED KINGDOM ATOMIC ENERGY AUTHORITY 30 April 1975 [30 April 1974] 18981/74 Headings B3A B3M and B3Q [Also in Division F4] Nucleation sites are formed in a heat exchange or ebullator member 10 by forming discrete indentations 11 in the member and working the member to partially close the identations and form re-entrant cavities 18, 19. An aluminium heat exchanger plate or tube may be formed, or an ebullator which may be formed of a ceramic material. The starting blank may be flat or tubular and the sites formed on at least part of the inside or outside of the tube. The identations 11 are formed by one or more spikes on a platen or roller, Fig. 1 (not shown). Raised margins 15 about the identations are flattened between rollers 16, 17 to form the re-entrant cavities. The member 10 may be formed into a tube and seam welded before or after flattening the margins 15. Alternatively, the strip 10 may be twisted to form a ribbon ebullator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1898174A GB1468710A (en) | 1975-04-30 | 1975-04-30 | Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1898174A GB1468710A (en) | 1975-04-30 | 1975-04-30 | Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1468710A true GB1468710A (en) | 1977-03-30 |
Family
ID=10121742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1898174A Expired GB1468710A (en) | 1975-04-30 | 1975-04-30 | Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1468710A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2001160A (en) * | 1977-07-13 | 1979-01-24 | Carrier Corp | Heat transfer surface and method of manufacture |
EP0591693A1 (en) * | 1992-09-08 | 1994-04-13 | Kabushiki Kaisha Meidensha | System for grooving and rolling linear member and flat heat exchanger tube resulting therefrom |
EP0617250A2 (en) * | 1993-03-26 | 1994-09-28 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
US5784776A (en) * | 1993-06-16 | 1998-07-28 | Showa Aluminum Corporation | Process for producing flat heat exchange tubes |
US5931226A (en) * | 1993-03-26 | 1999-08-03 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
FR2865027A1 (en) | 2004-01-12 | 2005-07-15 | Air Liquide | Corrugated fin for heat exchanger e.g. vaporizer-condenser, has pores, and corrugations, each including vertical legs alternatively connected by top and base of corrugation, where top, base and legs are made of sintered aluminum particles |
CN115418586A (en) * | 2022-09-30 | 2022-12-02 | 长春工业大学 | Method for preparing surface gradient high-strength high-conductivity copper material by on-line cryogenic-deformation |
-
1975
- 1975-04-30 GB GB1898174A patent/GB1468710A/en not_active Expired
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2001160A (en) * | 1977-07-13 | 1979-01-24 | Carrier Corp | Heat transfer surface and method of manufacture |
GB2001160B (en) * | 1977-07-13 | 1982-10-13 | Carrier Corp | Heat exchange surface |
EP0591693A1 (en) * | 1992-09-08 | 1994-04-13 | Kabushiki Kaisha Meidensha | System for grooving and rolling linear member and flat heat exchanger tube resulting therefrom |
US5730215A (en) * | 1993-03-26 | 1998-03-24 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
EP0617250A3 (en) * | 1993-03-26 | 1995-06-28 | Showa Aluminum Corp | Refrigerant tubes for heat exchangers. |
US5638897A (en) * | 1993-03-26 | 1997-06-17 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
EP0617250A2 (en) * | 1993-03-26 | 1994-09-28 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
US5749144A (en) * | 1993-03-26 | 1998-05-12 | Showa Aluminum Corporation | Method of making refrigerant tubes for heat exchangers |
EP0845646A1 (en) * | 1993-03-26 | 1998-06-03 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
US5931226A (en) * | 1993-03-26 | 1999-08-03 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
US5784776A (en) * | 1993-06-16 | 1998-07-28 | Showa Aluminum Corporation | Process for producing flat heat exchange tubes |
FR2865027A1 (en) | 2004-01-12 | 2005-07-15 | Air Liquide | Corrugated fin for heat exchanger e.g. vaporizer-condenser, has pores, and corrugations, each including vertical legs alternatively connected by top and base of corrugation, where top, base and legs are made of sintered aluminum particles |
CN115418586A (en) * | 2022-09-30 | 2022-12-02 | 长春工业大学 | Method for preparing surface gradient high-strength high-conductivity copper material by on-line cryogenic-deformation |
CN115418586B (en) * | 2022-09-30 | 2023-12-22 | 长春工业大学 | Method for preparing high-strength high-conductivity copper material with surface gradient through on-line deep cooling-deformation |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |