JPS57124154A - Expansion bellows - Google Patents

Expansion bellows

Info

Publication number
JPS57124154A
JPS57124154A JP56007837A JP783781A JPS57124154A JP S57124154 A JPS57124154 A JP S57124154A JP 56007837 A JP56007837 A JP 56007837A JP 783781 A JP783781 A JP 783781A JP S57124154 A JPS57124154 A JP S57124154A
Authority
JP
Japan
Prior art keywords
vicinity
welded part
bellows
bending rigidity
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.)
Granted
Application number
JP56007837A
Other languages
Japanese (ja)
Other versions
JPS6255027B2 (en
Inventor
Hideaki Abe
Shigehiro Shimoyashiki
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 JP56007837A priority Critical patent/JPS57124154A/en
Publication of JPS57124154A publication Critical patent/JPS57124154A/en
Publication of JPS6255027B2 publication Critical patent/JPS6255027B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/047—Metallic bellows

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

PURPOSE:To reduce large stress generated in the vicinity of a welded part and prevent plastic deformation or crack, by forming bending rigidity in the vicinity of the welded part of welded bellows larger than bending rigidity in the central part. CONSTITUTION:A flexion amount of bellows 6 in the vicinity of its welded part is decreased to prevent occurrence of excessive stress generated in its surface, simultaneously to display the original characteristic of the bellows 6 as a spring, only the plate thickness in the vicinity of the welded part is increased to radially provide the distribution of bending rigidity. In consequence, a state of stress in the vicinity of the welded part is as shown in the drawing, and the maximum stress becomes not more than yield stress sigmay.
JP56007837A 1981-01-23 1981-01-23 Expansion bellows Granted JPS57124154A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56007837A JPS57124154A (en) 1981-01-23 1981-01-23 Expansion bellows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56007837A JPS57124154A (en) 1981-01-23 1981-01-23 Expansion bellows

Publications (2)

Publication Number Publication Date
JPS57124154A true JPS57124154A (en) 1982-08-02
JPS6255027B2 JPS6255027B2 (en) 1987-11-18

Family

ID=11676714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56007837A Granted JPS57124154A (en) 1981-01-23 1981-01-23 Expansion bellows

Country Status (1)

Country Link
JP (1) JPS57124154A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241388A3 (en) * 2001-03-16 2004-01-14 VAT Holding AG Elastic deformable bellow and method of producing such a bellow
CN110529593A (en) * 2018-05-23 2019-12-03 株式会社鹭宫制作所 Welding structure and valve gear

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241388A3 (en) * 2001-03-16 2004-01-14 VAT Holding AG Elastic deformable bellow and method of producing such a bellow
CN110529593A (en) * 2018-05-23 2019-12-03 株式会社鹭宫制作所 Welding structure and valve gear

Also Published As

Publication number Publication date
JPS6255027B2 (en) 1987-11-18

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