JPS5543360A - Metal pipe - Google Patents

Metal pipe

Info

Publication number
JPS5543360A
JPS5543360A JP11688778A JP11688778A JPS5543360A JP S5543360 A JPS5543360 A JP S5543360A JP 11688778 A JP11688778 A JP 11688778A JP 11688778 A JP11688778 A JP 11688778A JP S5543360 A JPS5543360 A JP S5543360A
Authority
JP
Japan
Prior art keywords
pipe
band
metal
roller
narrow grooves
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.)
Pending
Application number
JP11688778A
Other languages
Japanese (ja)
Inventor
Kimiharu Ito
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.)
Ito Kogyo KK
Original Assignee
Ito Kogyo KK
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 Ito Kogyo KK filed Critical Ito Kogyo KK
Priority to JP11688778A priority Critical patent/JPS5543360A/en
Publication of JPS5543360A publication Critical patent/JPS5543360A/en
Pending 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
    • F28F1/40—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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Metal Extraction Processes (AREA)

Abstract

PURPOSE:To raise the efficiency of cooling or heat absorption of a coolant, by providing numerous circumferential narrow grooves on the inside of a metal pipe. CONSTITUTION:A metal band 1 for manufacturing the metal pipe is positioned by a pair of guide rollers 2 and passed through between a grooving roller 3 and a driving roller 4 which forcedly feeds the metal band. Projections of trapezoidal cross section are provided on the peripheral surface of the grooving roller 3 so that the projections extend in parallel with the axis of the roller. The narrow grooves 5 of trapezoidal cross section are continuously produced on one side of the metal band 1 so that the grooves extend in parallel with each other and perpendicularly to the longitudinal direction of the band. The band is then rounded by a pipe making machine. Both the side edges of the band are welded on each other, thereby making the metal pipe. When ammonia gas flows into the pipe, the flow is disturbed because of the numerous narrow grooves 5 on the inside surface of the pipe so that the velocity of the flow falls and the time of passing of the gas through the pipe is lengthened. Since the inside surface area of the pipe is increased, the capacity of heat exchange is raised.
JP11688778A 1978-09-21 1978-09-21 Metal pipe Pending JPS5543360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11688778A JPS5543360A (en) 1978-09-21 1978-09-21 Metal pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11688778A JPS5543360A (en) 1978-09-21 1978-09-21 Metal pipe

Publications (1)

Publication Number Publication Date
JPS5543360A true JPS5543360A (en) 1980-03-27

Family

ID=14698089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11688778A Pending JPS5543360A (en) 1978-09-21 1978-09-21 Metal pipe

Country Status (1)

Country Link
JP (1) JPS5543360A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148194A (en) * 1981-03-06 1982-09-13 Mitsubishi Heavy Ind Ltd Heat transfer pipe
JPS58173027A (en) * 1982-04-02 1983-10-11 Fuji Asechiren Kogyo Kk Manufacture of flanged short tube
JPS58187681A (en) * 1982-04-27 1983-11-01 株式会社東芝 Grooved pipe and its manufacture
JPS5947016A (en) * 1982-09-10 1984-03-16 Sadao Maruyama Manufacture of patterned die material
JPS6087920A (en) * 1983-10-18 1985-05-17 Taisei Corp Manufacturing device of sheath for covering pc steel wire
US4982784A (en) * 1988-09-30 1991-01-08 Ford Motor Company Composite heat exchanger tube
US5105540A (en) * 1988-09-30 1992-04-21 Ford Motor Company Tube method of making a composite heat exchanger tube
US5424887A (en) * 1980-03-05 1995-06-13 Papst Licensing Gmbh Disk storage drive
EP0870999A3 (en) * 1997-04-09 2000-06-07 SANYO ELECTRIC Co., Ltd. An absorption refrigerator
WO2006098183A1 (en) * 2005-03-17 2006-09-21 Seiko Epson Corporation Cylindrical shaft and method of manufacturing the same
EP1852669A1 (en) * 2006-05-02 2007-11-07 Samsung Gwangju Electronics Co., Ltd. Heat exchanger for refrigerator and method for manufacturing a tube thereof
JP2009195986A (en) * 2005-03-17 2009-09-03 Seiko Epson Corp Cylindrical shaft
JP2017044363A (en) * 2015-08-24 2017-03-02 京セラ株式会社 Channel member

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5424887A (en) * 1980-03-05 1995-06-13 Papst Licensing Gmbh Disk storage drive
US5946161A (en) * 1980-03-05 1999-08-31 Papst Licensing Gmbh Disk storage device having a labyrinth seal
US5777822A (en) * 1980-03-05 1998-07-07 Papst Licensing Gmbh Disk storage drive
US5729403A (en) * 1980-03-05 1998-03-17 Papst Licensing Gmbh Disk storage drive
US5708539A (en) * 1980-03-05 1998-01-13 Papst Licensing Gmbh & Co. Kg Disk storage drive
JPS57148194A (en) * 1981-03-06 1982-09-13 Mitsubishi Heavy Ind Ltd Heat transfer pipe
JPH0237250B2 (en) * 1982-04-02 1990-08-23 Fuji Asechiren Kogyo Kk
JPS58173027A (en) * 1982-04-02 1983-10-11 Fuji Asechiren Kogyo Kk Manufacture of flanged short tube
JPS58187681A (en) * 1982-04-27 1983-11-01 株式会社東芝 Grooved pipe and its manufacture
JPS5947016A (en) * 1982-09-10 1984-03-16 Sadao Maruyama Manufacture of patterned die material
JPS6087920A (en) * 1983-10-18 1985-05-17 Taisei Corp Manufacturing device of sheath for covering pc steel wire
US5105540A (en) * 1988-09-30 1992-04-21 Ford Motor Company Tube method of making a composite heat exchanger tube
US4982784A (en) * 1988-09-30 1991-01-08 Ford Motor Company Composite heat exchanger tube
EP0870999A3 (en) * 1997-04-09 2000-06-07 SANYO ELECTRIC Co., Ltd. An absorption refrigerator
WO2006098183A1 (en) * 2005-03-17 2006-09-21 Seiko Epson Corporation Cylindrical shaft and method of manufacturing the same
JP2006289496A (en) * 2005-03-17 2006-10-26 Seiko Epson Corp Cylindrical shaft and method of manufacturing the same
JP2009195986A (en) * 2005-03-17 2009-09-03 Seiko Epson Corp Cylindrical shaft
US7610938B2 (en) 2005-03-17 2009-11-03 Seiko Epson Corporation Cylindrical rod and method for manufacturing the same
EP1852669A1 (en) * 2006-05-02 2007-11-07 Samsung Gwangju Electronics Co., Ltd. Heat exchanger for refrigerator and method for manufacturing a tube thereof
JP2017044363A (en) * 2015-08-24 2017-03-02 京セラ株式会社 Channel member

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