GB601833A - Method of preforming finned tubing and the product thereof - Google Patents
Method of preforming finned tubing and the product thereofInfo
- Publication number
- GB601833A GB601833A GB25899/45A GB2589945A GB601833A GB 601833 A GB601833 A GB 601833A GB 25899/45 A GB25899/45 A GB 25899/45A GB 2589945 A GB2589945 A GB 2589945A GB 601833 A GB601833 A GB 601833A
- Authority
- GB
- United Kingdom
- Prior art keywords
- internal
- external
- twisting
- preforming
- product
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
-
- 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
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
- B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
601,833. Rolling finned tubes. CALUMET & HECLA CONSOLIDATED COPPER CO. Oct. 4, 1945, No. 25899. Convention date, June 19, 1944. [Classes 83 (ii) and 83 (iv)] Tubing is provided with internal and external integral fins. A tubular blank A with smooth exterior and axially ribbed interior surface is formed by extrusion &c. and is then acted on by rollers E formed of discs of progressively changing section to raise radially external fins C. Twisting.-The external ribbing causes a slight twisting of the internal ribs and also a slight corrugation of the internal surface.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US601833XA | 1944-06-19 | 1944-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB601833A true GB601833A (en) | 1948-05-13 |
Family
ID=22027891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25899/45A Expired GB601833A (en) | 1944-06-19 | 1945-10-04 | Method of preforming finned tubing and the product thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB601833A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE941902C (en) * | 1950-09-25 | 1956-04-19 | Calumet & Hecla | Form roll and method of making the same |
FR2106597A1 (en) * | 1970-09-18 | 1972-05-05 | Idemitsu Petrochemical Co | Heat pipe - for externally heated furnace has max possible internal cross section |
FR2236157A1 (en) * | 1973-07-05 | 1975-01-31 | Universal Oil Prod Co | |
EP0094578A1 (en) * | 1982-05-13 | 1983-11-23 | Wieland-Werke AG | Heat transfer tube |
EP0102407A1 (en) * | 1982-09-03 | 1984-03-14 | Wieland-Werke Ag | Finned tube with internal projections and method and apparatus for its manufacture |
EP0971195A2 (en) * | 1998-07-06 | 2000-01-12 | Fontecal S.p.A. | Improved gas-liquid heat exchanger |
-
1945
- 1945-10-04 GB GB25899/45A patent/GB601833A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE941902C (en) * | 1950-09-25 | 1956-04-19 | Calumet & Hecla | Form roll and method of making the same |
FR2106597A1 (en) * | 1970-09-18 | 1972-05-05 | Idemitsu Petrochemical Co | Heat pipe - for externally heated furnace has max possible internal cross section |
FR2236157A1 (en) * | 1973-07-05 | 1975-01-31 | Universal Oil Prod Co | |
EP0094578A1 (en) * | 1982-05-13 | 1983-11-23 | Wieland-Werke AG | Heat transfer tube |
EP0102407A1 (en) * | 1982-09-03 | 1984-03-14 | Wieland-Werke Ag | Finned tube with internal projections and method and apparatus for its manufacture |
EP0971195A2 (en) * | 1998-07-06 | 2000-01-12 | Fontecal S.p.A. | Improved gas-liquid heat exchanger |
EP0971195A3 (en) * | 1998-07-06 | 2000-08-02 | Fontecal S.p.A. | Improved gas-liquid heat exchanger |
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