JPS57194833A - Extracting method for reamer bolt, etc. - Google Patents

Extracting method for reamer bolt, etc.

Info

Publication number
JPS57194833A
JPS57194833A JP7960981A JP7960981A JPS57194833A JP S57194833 A JPS57194833 A JP S57194833A JP 7960981 A JP7960981 A JP 7960981A JP 7960981 A JP7960981 A JP 7960981A JP S57194833 A JPS57194833 A JP S57194833A
Authority
JP
Japan
Prior art keywords
reamer bolt
cavity
reamer
bolt
cooled
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
JP7960981A
Other languages
Japanese (ja)
Inventor
Masanari Iwahashi
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 Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP7960981A priority Critical patent/JPS57194833A/en
Publication of JPS57194833A publication Critical patent/JPS57194833A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06—Screw or nut setting or loosening machines
    • B23P19/067—Bolt tensioners
    • B23P19/068—Bolt tensioners by using heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To shrink the outside diameter of the reamer bolt, and to extract the reamer bolt easily by cooling the reamer bolt when extracting the reamer bolt used for the connecting section, etc. of a rudder head material and a rudder core material. CONSTITUTION:A cavity 2 with a predetermined diameter is formed to the axial core section of the reamer bolt 1 while a valve 3 is connected, the inside of the cavity 2 is filled with the refrigerant liquid of liquefied nitrogen, propane, carbon dioxide, etc. by using a pressure vessel 4, and the valve 3 connected to the cavity 2 is opened. Consequently, the refrigerant liquid is evaporated into the atmosphere, and the reamer bolt 1 is cooled up to approximaterly -30--50 deg.C by the heat of evaporation at that time. Accordingly, the reamer bolt is cooled and shrunk, and easily extracted.
JP7960981A 1981-05-25 1981-05-25 Extracting method for reamer bolt, etc. Pending JPS57194833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7960981A JPS57194833A (en) 1981-05-25 1981-05-25 Extracting method for reamer bolt, etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7960981A JPS57194833A (en) 1981-05-25 1981-05-25 Extracting method for reamer bolt, etc.

Publications (1)

Publication Number Publication Date
JPS57194833A true JPS57194833A (en) 1982-11-30

Family

ID=13694761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7960981A Pending JPS57194833A (en) 1981-05-25 1981-05-25 Extracting method for reamer bolt, etc.

Country Status (1)

Country Link
JP (1) JPS57194833A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0490493U (en) * 1990-12-19 1992-08-06
JP2006125551A (en) * 2004-10-29 2006-05-18 Minoru Fujimoto Screw thread structure
CN101850490A (en) * 2010-05-31 2010-10-06 南通中远船务工程有限公司 Rudder pintle bearing body repairing process based on metal repairing agent casting
CN102513778A (en) * 2011-11-23 2012-06-27 广州文冲船厂有限责任公司 Method for taking out bolt without damaging bolt hole

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0490493U (en) * 1990-12-19 1992-08-06
JP2006125551A (en) * 2004-10-29 2006-05-18 Minoru Fujimoto Screw thread structure
CN101850490A (en) * 2010-05-31 2010-10-06 南通中远船务工程有限公司 Rudder pintle bearing body repairing process based on metal repairing agent casting
CN102513778A (en) * 2011-11-23 2012-06-27 广州文冲船厂有限责任公司 Method for taking out bolt without damaging bolt hole

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