FR2218956B1 - - Google Patents

Info

Publication number
FR2218956B1
FR2218956B1 FR7306759A FR7306759A FR2218956B1 FR 2218956 B1 FR2218956 B1 FR 2218956B1 FR 7306759 A FR7306759 A FR 7306759A FR 7306759 A FR7306759 A FR 7306759A FR 2218956 B1 FR2218956 B1 FR 2218956B1
Authority
FR
France
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
FR7306759A
Other versions
FR2218956A1 (fr
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.)
STAROSTIN JURY
Original Assignee
STAROSTIN JURY
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 STAROSTIN JURY filed Critical STAROSTIN JURY
Priority to FR7306759A priority Critical patent/FR2218956B1/fr
Publication of FR2218956A1 publication Critical patent/FR2218956A1/fr
Application granted granted Critical
Publication of FR2218956B1 publication Critical patent/FR2218956B1/fr
Expired legal-status Critical Current

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
    • B21C37/20—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
    • 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • B21C3/12—Die holders; Rotating dies
    • 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
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
FR7306759A 1973-02-26 1973-02-26 Expired FR2218956B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7306759A FR2218956B1 (fr) 1973-02-26 1973-02-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7306759A FR2218956B1 (fr) 1973-02-26 1973-02-26

Publications (2)

Publication Number Publication Date
FR2218956A1 FR2218956A1 (fr) 1974-09-20
FR2218956B1 true FR2218956B1 (fr) 1977-09-02

Family

ID=9115417

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7306759A Expired FR2218956B1 (fr) 1973-02-26 1973-02-26

Country Status (1)

Country Link
FR (1) FR2218956B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048959C2 (de) * 1980-12-24 1985-08-29 Wieland-Werke Ag, 7900 Ulm Verfahren und Vorrichtung zur Herstellung eines Rippenrohres für Wärmeübertrager o.dgl.

Also Published As

Publication number Publication date
FR2218956A1 (fr) 1974-09-20

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Legal Events

Date Code Title Description
ST Notification of lapse