JPS53146966A - Expander roller - Google Patents

Expander roller

Info

Publication number
JPS53146966A
JPS53146966A JP6117777A JP6117777A JPS53146966A JP S53146966 A JPS53146966 A JP S53146966A JP 6117777 A JP6117777 A JP 6117777A JP 6117777 A JP6117777 A JP 6117777A JP S53146966 A JPS53146966 A JP S53146966A
Authority
JP
Japan
Prior art keywords
expander roller
improve
expander
roller
polygon
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
JP6117777A
Other languages
Japanese (ja)
Inventor
Isamu Tomita
Eizo Yamaguchi
Hideo Hanawa
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.)
Hitachi Ltd
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
Priority to JP6117777A priority Critical patent/JPS53146966A/en
Publication of JPS53146966A publication Critical patent/JPS53146966A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE: To improve the efficiency of the expanding work for tightly fitting the expanded thin tubes to the tube sheet, and also, to improve the reliability of the product, by forming the sleeve, for holding the expander roller into a polygon.
COPYRIGHT: (C)1978,JPO&Japio
JP6117777A 1977-05-27 1977-05-27 Expander roller Pending JPS53146966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6117777A JPS53146966A (en) 1977-05-27 1977-05-27 Expander roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6117777A JPS53146966A (en) 1977-05-27 1977-05-27 Expander roller

Publications (1)

Publication Number Publication Date
JPS53146966A true JPS53146966A (en) 1978-12-21

Family

ID=13163603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6117777A Pending JPS53146966A (en) 1977-05-27 1977-05-27 Expander roller

Country Status (1)

Country Link
JP (1) JPS53146966A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066791C (en) * 1996-07-01 2001-06-06 瓦西兴产株式会社 Opening roller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066791C (en) * 1996-07-01 2001-06-06 瓦西兴产株式会社 Opening roller

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