JPS5714420A - Production of u tube - Google Patents

Production of u tube

Info

Publication number
JPS5714420A
JPS5714420A JP8837280A JP8837280A JPS5714420A JP S5714420 A JPS5714420 A JP S5714420A JP 8837280 A JP8837280 A JP 8837280A JP 8837280 A JP8837280 A JP 8837280A JP S5714420 A JPS5714420 A JP S5714420A
Authority
JP
Japan
Prior art keywords
die
pipe
bulged
bent
eccentric
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.)
Granted
Application number
JP8837280A
Other languages
Japanese (ja)
Other versions
JPS5932210B2 (en
Inventor
Tatsuhiro Ikeuchi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP8837280A priority Critical patent/JPS5932210B2/en
Publication of JPS5714420A publication Critical patent/JPS5714420A/en
Publication of JPS5932210B2 publication Critical patent/JPS5932210B2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0475—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend

Abstract

PURPOSE: To produce a U type tube which is high in roughness of a bent part and is free from rupture or thickness reduction in an outer-bent part by bending the bulged side of an eccentrically bulged part which has beforehand been formed to the length required for the length to be the outer bent side of a large diameter pipe into a U shape in a manner as to come to the outer bend side.
CONSTITUTION: A large diameter pipe A is subjected to one side drawing from both sides thereof respectively with an eccentric die 1 by leaving part of the intermediate thereof, that is, an eccentric nondrawn part C. Next, the part C bulged into said eccentric shape is pressed and is deformed to an ellipse wherein the bulging direction thereof is a long axis. Next, the pipe B deformed of the bulged part into an ellipse is placed on the hollow forming parts 13, 13' on the female die 8 of a press device consisting of the female die 8 and a male die 9, and the male die 9 is driven downward. The leading end of the hollow forming part 14 of the die 9 is abutted on the center on the linear side of the part C of the pipe B, and the abutting part thereof is begun to be bent inward. In accordance with this, on the other hand, the two turning tables 12, 12' of the die 8 are turned around pins 11, 11' to bend the pipe B at the included angle 90° along the part 14, whereby a desired U-shaped pipe is manufactured.
COPYRIGHT: (C)1982,JPO&Japio
JP8837280A 1980-06-28 1980-06-28 Manufacturing method of U-tube Expired JPS5932210B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8837280A JPS5932210B2 (en) 1980-06-28 1980-06-28 Manufacturing method of U-tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8837280A JPS5932210B2 (en) 1980-06-28 1980-06-28 Manufacturing method of U-tube

Publications (2)

Publication Number Publication Date
JPS5714420A true JPS5714420A (en) 1982-01-25
JPS5932210B2 JPS5932210B2 (en) 1984-08-07

Family

ID=13940958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8837280A Expired JPS5932210B2 (en) 1980-06-28 1980-06-28 Manufacturing method of U-tube

Country Status (1)

Country Link
JP (1) JPS5932210B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5598735A (en) * 1994-03-29 1997-02-04 Horikiri Spring Manufacturing Co., Ltd. Hollow stabilizer manufacturing method
CN113000652A (en) * 2021-02-26 2021-06-22 金华馨菲科技有限公司 Bending forming device for evaporating pipe of evaporating plate of refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5598735A (en) * 1994-03-29 1997-02-04 Horikiri Spring Manufacturing Co., Ltd. Hollow stabilizer manufacturing method
CN113000652A (en) * 2021-02-26 2021-06-22 金华馨菲科技有限公司 Bending forming device for evaporating pipe of evaporating plate of refrigerator

Also Published As

Publication number Publication date
JPS5932210B2 (en) 1984-08-07

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