• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Improved heat transfer tube has radial longitudinal fins on a central core and radial transverse fins on its exterior surface. The composite tube is made by the steps of inserting a longitudinally finned core member inside a smooth surfaced outer tube and then subjecting the outer tube to an external finning operation which produces external fins on the tube while reducing the internal tube diameter of the tube sufficiently that the tube will be firmly mechanically bonded to the finned core member.
    公开号:SU724092A3
    申请号:SU772477003
    申请日:1977-04-27
    公开日:1980-03-25
    发明作者:Ли Каннингхэм Джеймс；Джек Кэмпбелл Бонни
    申请人:Юоп Инк (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to heat exchange apparatus and can be used in the energy industry.
    A known method of manufacturing a heat exchange tube from a smooth-walled cylindrical sharpening is by finning its outer surface and placing inside it along the axis of the core with longitudinal radial ribs 1.
    The disadvantage of this method is the complexity of the process of external finning of the pipe and the need for additional processing of its internal surface for the installation of the core.
    The purpose of the invention is to improve manufacturability.
    This is achieved by pre-inserting the core into the core, after which the fins are formed on its outer surface with simultaneous compression to the inner diameter, smaller diameter of the core edges, and the shape of the polygon in cross-section, the tops of which correspond to the core edges, partially pressed into billet wall.
    FIG. 1 shows a pipe according to the proposed method; in fig. 2 is the same cross section.
    The heat exchange tube contains the outer fins 1 and the core 2 placed inside it with ribs 3.
    Inside the cylindrical billet of the pipe, a core 2 with ribs 3 is placed. Then the outer surface of the billet is crimped to form ribbing 1 and give the billet a polygon shape in a transverse junction whose peaks correspond to the ribs 3 of core 2.
    The forces clamped in this way partially allow the core ribs to be pressed into the wall of the workpiece.
    The proposed method for the manufacture of a heat exchange tube makes it possible to simplify the process of its external finning while fastening the core inside it.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A method of manufacturing a heat exchange tube from a smooth-wall cylindrical billet
    by orienting it to a surface with a surface and placing inside it along the axis of the core with longitudinal-radial ribs, characterized in that, in order to improve manufacturability, a core is inserted inside aiaroTOBKJi, and then. on the outer surface of it, the fins are formed with simultaneous compression to the inner diameter, smaller diameter of the tops of the core edges, and give the blank the shape of a polygon in cross section, the tops of which correspond to the core edges partially pressed into the wall of the workpiece.
    Sources of information taken into account in the examination 1. US patent 3696863, cl. 165-179, published. 1970.
    FIG. 2
    类似技术:
    公开号 | 公开日 | 专利标题
    US4031602A|1977-06-28|Method of making heat transfer tube
    US3834013A|1974-09-10|Method for forming finished bore sizes in laminated stator cores of dynamoelectric machines
    US4646548A|1987-03-03|Tube expanding and grooving tool and method
    SE8005286L|1981-01-27|PROCEDURE FOR SHAPING A METAL PIPE, SEPARATELY FOR A HEAT EXCHANGER WITH SALUNDA FORMED METAL PIPE
    GB1174640A|1969-12-17|Improvements in or relating to Metallic Heat Exchange Tubes
    SU724092A3|1980-03-25|Heat exchange pipe manufacturing method
    US3630058A|1971-12-28|Process and apparatus for forming tubes with spiral corrugations
    US3862481A|1975-01-28|Method of manufacturing tubes provided with longitudinal grooves in inner wall and/or outer wall, and tubes manufactured by this method
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    KR940008540B1|1994-09-24|Making method of fin tube
    JP3451492B2|2003-09-29|Diameter reduction method for end of heat exchange tube with inner fin
    SU891265A1|1981-12-23|Method of basing blanks at mandrelling
    SU219531A1|1977-11-05|Method of manufacturing multilayer wire
    SU780943A1|1980-11-23|Method of producing stepping envelopes
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    同族专利:
    公开号 | 公开日
    DE2717802A1|1977-11-17|
    BR7702662A|1978-01-17|
    FR2349812A1|1977-11-25|
    NL7704575A|1977-11-01|
    JPS52133156A|1977-11-08|
    MX144667A|1981-11-09|
    LU77201A1|1977-08-17|
    ES458227A1|1978-02-16|
    CA1096147A|1981-02-24|
    DE2717802B2|1981-02-05|
    IT1115901B|1986-02-10|
    FR2349812B1|1980-04-25|
    AU510153B2|1980-06-12|
    AU2447577A|1978-10-26|
    PH17527A|1984-09-13|
    AR212360A1|1978-06-30|
    GB1572475A|1980-07-30|
    ZA772383B|1978-03-29|
    IN146417B|1979-05-26|
    BE853787A|1977-08-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2522548B1|1982-03-05|1985-09-06|Kuibyshevsky Aviat Institu|METHOD FOR MANUFACTURING MULTI-CHANNEL TUBES, DIE FOR IMPLEMENTING SAME, AND MULTI-CHANNEL TUBES OBTAINED BY SAID METHOD|
    JPS63126780U|1987-02-05|1988-08-18|
    GB9315346D0|1993-07-23|1993-09-08|Marshall Graeme D|Fluid channelling means for use in heat transfer apparatus, and a method of producing fluid channelling means|
    AT405881B|1998-03-05|1999-12-27|Vaillant Gmbh|HEAT EXCHANGER|
    KR100469321B1|2001-12-08|2005-02-02|핀튜브텍|A Fin-Tube Type Heat Exchanger And Manufacturing Method Thereof|
    KR20020048366A|2002-06-04|2002-06-22|핀튜브텍|Fin tube type heat exchanger and airconditioner and refrigerator using the heat exchanger|
    KR20030038599A|2003-04-16|2003-05-16|위성점|A pipe for a refrigerating machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US68100676A| true| 1976-04-28|1976-04-28|
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