METHOD OF EXPANDING TUBE
PROBLEM TO BE SOLVED: To provide a method of expanding a tube, by which the situation that recessed parts are generated on the inner peripheral surface of a heat transmitting tube is prevented when flaws are generated along the peripheral direction to the inner peripheral surface in the midst of a t...
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| creator | ISHIGAMI YOICHI KANAFUSE TAKASHI KADOWAKI HIROKAZU KAGAWA TAKASHI |
| description | PROBLEM TO BE SOLVED: To provide a method of expanding a tube, by which the situation that recessed parts are generated on the inner peripheral surface of a heat transmitting tube is prevented when flaws are generated along the peripheral direction to the inner peripheral surface in the midst of a tube hole in the axial direction.SOLUTION: In a method of expanding a tube by which a heat transmitting tube 105 inserted into a tube hole 104a of a tube plate 104 is fixed by expanding the tube, when the flaws 104b are generated along the peripheral direction to the inner peripheral surface in the midst of the tube hole 104a in the direction of the axis S1, the method includes: a first hydraulic tube expanding step where in a range including flaws 104b, the tube is expanded by hydraulic pressure by pressure of 15-70%; and then a second hydraulic tube expanding step where in each divided ranges excepting the flaws 104b, the tube is each expanded by hydraulic pressure by the pressure of 100%. |
| format | Patent |
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and then a second hydraulic tube expanding step where in each divided ranges excepting the flaws 104b, the tube is each expanded by hydraulic pressure by the pressure of 100%.</description><language>eng</language><subject>BLASTING ; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION ; HEAT EXCHANGE IN GENERAL ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; NUCLEAR ENGINEERING ; NUCLEAR PHYSICS ; NUCLEAR POWER PLANT ; PERFORMING OPERATIONS ; PHYSICS ; PUNCHING METAL ; TRANSPORTING ; WEAPONS ; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131007&DB=EPODOC&CC=JP&NR=2013202687A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131007&DB=EPODOC&CC=JP&NR=2013202687A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ISHIGAMI YOICHI</creatorcontrib><creatorcontrib>KANAFUSE TAKASHI</creatorcontrib><creatorcontrib>KADOWAKI HIROKAZU</creatorcontrib><creatorcontrib>KAGAWA TAKASHI</creatorcontrib><title>METHOD OF EXPANDING TUBE</title><description>PROBLEM TO BE SOLVED: To provide a method of expanding a tube, by which the situation that recessed parts are generated on the inner peripheral surface of a heat transmitting tube is prevented when flaws are generated along the peripheral direction to the inner peripheral surface in the midst of a tube hole in the axial direction.SOLUTION: In a method of expanding a tube by which a heat transmitting tube 105 inserted into a tube hole 104a of a tube plate 104 is fixed by expanding the tube, when the flaws 104b are generated along the peripheral direction to the inner peripheral surface in the midst of the tube hole 104a in the direction of the axis S1, the method includes: a first hydraulic tube expanding step where in a range including flaws 104b, the tube is expanded by hydraulic pressure by pressure of 15-70%; 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and then a second hydraulic tube expanding step where in each divided ranges excepting the flaws 104b, the tube is each expanded by hydraulic pressure by the pressure of 100%.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR POWER PLANT PERFORMING OPERATIONS PHYSICS PUNCHING METAL TRANSPORTING WEAPONS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL |
| title | METHOD OF EXPANDING TUBE |
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