GB601833A - Method of preforming finned tubing and the product thereof - Google Patents

Method of preforming finned tubing and the product thereof

Info

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
Application number
GB25899/45A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CALUMET AND HECLA CONS COPPER
Original Assignee
CALUMET AND HECLA CONS COPPER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CALUMET AND HECLA CONS COPPER filed Critical CALUMET AND HECLA CONS COPPER
Publication of GB601833A publication Critical patent/GB601833A/en
Expired legal-status Critical Current

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

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.
GB25899/45A 1944-06-19 1945-10-04 Method of preforming finned tubing and the product thereof Expired GB601833A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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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