JPS6357725A - Improvement of residual stress in metal tube or the like - Google Patents

Improvement of residual stress in metal tube or the like

Info

Publication number
JPS6357725A
JPS6357725A JP20240786A JP20240786A JPS6357725A JP S6357725 A JPS6357725 A JP S6357725A JP 20240786 A JP20240786 A JP 20240786A JP 20240786 A JP20240786 A JP 20240786A JP S6357725 A JPS6357725 A JP S6357725A
Authority
JP
Japan
Prior art keywords
tube
heating
metal tube
outside
residual stress
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
JP20240786A
Other languages
Japanese (ja)
Inventor
Hitoshi Nakamura
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP20240786A priority Critical patent/JPS6357725A/en
Publication of JPS6357725A publication Critical patent/JPS6357725A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

PURPOSE: To control heating and to easily improve the residual stress in a metal tube by fitting a sound wave sensor to the outside of the tube filled with cooling water, heating the surface of the tube and detecting the state of steam generated by the heating.
CONSTITUTION: A sound wave sensor 9 is fitted to the outside of a metal tube 2, the tube 2 is filled with cooling water and the surface of the tube 2 is heated with a heating means 7. A change in value detected by the sensor 9 due to steam generated by the heating is monitored and a temp. difference producing thermal stress which corresponds to the yield point or above is caused between the inside and outside of the wall of the tube 2.
COPYRIGHT: (C)1988,JPO&Japio
JP20240786A 1986-08-28 1986-08-28 Improvement of residual stress in metal tube or the like Pending JPS6357725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20240786A JPS6357725A (en) 1986-08-28 1986-08-28 Improvement of residual stress in metal tube or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20240786A JPS6357725A (en) 1986-08-28 1986-08-28 Improvement of residual stress in metal tube or the like

Publications (1)

Publication Number Publication Date
JPS6357725A true JPS6357725A (en) 1988-03-12

Family

ID=16456998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20240786A Pending JPS6357725A (en) 1986-08-28 1986-08-28 Improvement of residual stress in metal tube or the like

Country Status (1)

Country Link
JP (1) JPS6357725A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8514998B2 (en) 2005-01-31 2013-08-20 Hitachi-Ge Nuclear Energy, Ltd. Induction heating stress improvement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8514998B2 (en) 2005-01-31 2013-08-20 Hitachi-Ge Nuclear Energy, Ltd. Induction heating stress improvement

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