IT1091418B - Dispositivo per formare scanalature interne in un tubo scambiatore di calore - Google Patents

Dispositivo per formare scanalature interne in un tubo scambiatore di calore

Info

Publication number
IT1091418B
IT1091418B IT69065/77A IT6906577A IT1091418B IT 1091418 B IT1091418 B IT 1091418B IT 69065/77 A IT69065/77 A IT 69065/77A IT 6906577 A IT6906577 A IT 6906577A IT 1091418 B IT1091418 B IT 1091418B
Authority
IT
Italy
Prior art keywords
heat exchanger
exchanger tube
internal grooves
forming internal
grooves
Prior art date
Application number
IT69065/77A
Other languages
English (en)
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of IT1091418B publication Critical patent/IT1091418B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B21H7/187—Rolling helical or rectilinear grooves
    • 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
    • B21C37/202—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 guides parallel to the tube axis
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Metal Extraction Processes (AREA)
  • Extrusion Of Metal (AREA)
IT69065/77A 1977-04-20 1977-09-19 Dispositivo per formare scanalature interne in un tubo scambiatore di calore IT1091418B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4447477A JPS53130266A (en) 1977-04-20 1977-04-20 Manufacturing apparatus for aluminum cylinder with many small internal splines

Publications (1)

Publication Number Publication Date
IT1091418B true IT1091418B (it) 1985-07-06

Family

ID=12692513

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69065/77A IT1091418B (it) 1977-04-20 1977-09-19 Dispositivo per formare scanalature interne in un tubo scambiatore di calore

Country Status (5)

Country Link
US (1) US4142392A (it)
JP (1) JPS53130266A (it)
DE (1) DE2741799C3 (it)
GB (1) GB1557429A (it)
IT (1) IT1091418B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332216C2 (de) * 1983-09-07 1995-02-16 Fichtel & Sachs Ag Verwendung einer Prägevorrichtung zur Herstellung mindestens einer axial verlaufenden Innennut an einem rohrförmig ausgebildeten Zylinder für Schwingungsdämpfer
US4706355A (en) * 1984-12-11 1987-11-17 Q-Dot Corporation Method of making an internally grooved and expanded tubular heat exchanger apparatus
US4866966A (en) * 1988-08-29 1989-09-19 Monroe Auto Equipment Company Method and apparatus for producing bypass grooves
GB2280628B (en) * 1993-08-03 1996-10-23 Camloc Method and apparatus for forming a longitudinal groove in the wall of a passage
DE10239149B4 (de) * 2002-08-27 2005-10-27 Thyssenkrupp Stahl Ag Vorrichtung zur Herstellung einer geradlinigen Rille in einem Werkstück aus Metall, insbesondere Stahl, und Verwendung der Vorrichtung
DE102004039967B4 (de) * 2004-08-18 2006-10-12 Gkn Driveline International Gmbh Verfahren zum Rückwärtsfließpressen von Innenprofilen
DE102009046781A1 (de) * 2009-11-17 2011-05-19 J. Eberspächer GmbH & Co. KG Wärmetauscheranordnung, insbesondere für ein Fahrzeugheizgerät
CN109663828B (zh) * 2018-12-28 2020-05-19 山东金艺珠宝有限公司 一种贵金属加工用挤压装置及工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US649341A (en) * 1899-10-30 1900-05-08 Henry Nevill Drift-die and matrix for forming grooves in inner surfaces of tubes.
US1017569A (en) * 1910-10-19 1912-02-13 Cyrus Lewis Sr Riffling-machine.
US2367226A (en) * 1940-05-10 1945-01-16 Foster Wheeler Corp Apparatus for producing extended surface tubular members
US2779222A (en) * 1954-01-05 1957-01-29 Ray C Edwards Apparatus for making heat exchange tubes
JPS5119823B2 (it) * 1971-08-18 1976-06-21

Also Published As

Publication number Publication date
GB1557429A (en) 1979-12-12
DE2741799C3 (de) 1980-07-24
JPS53130266A (en) 1978-11-14
DE2741799A1 (de) 1978-11-02
JPS5422941B2 (it) 1979-08-10
DE2741799B2 (de) 1979-11-15
US4142392A (en) 1979-03-06

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950929