JPS6449519A - Production of metal thermos - Google Patents

Production of metal thermos

Info

Publication number
JPS6449519A
JPS6449519A JP20743887A JP20743887A JPS6449519A JP S6449519 A JPS6449519 A JP S6449519A JP 20743887 A JP20743887 A JP 20743887A JP 20743887 A JP20743887 A JP 20743887A JP S6449519 A JPS6449519 A JP S6449519A
Authority
JP
Japan
Prior art keywords
sealing member
opening
brazing material
interposed
solid brazing
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
JP20743887A
Other languages
Japanese (ja)
Other versions
JPH0736804B2 (en
Inventor
Shoji Toida
Yoshinori Arai
Yasuhiro Kowa
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.)
Japan Oxygen Co Ltd
Nippon Sanso Corp
Original Assignee
Japan Oxygen Co Ltd
Nippon Sanso 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 Japan Oxygen Co Ltd, Nippon Sanso Corp filed Critical Japan Oxygen Co Ltd
Priority to JP20743887A priority Critical patent/JPH0736804B2/en
Publication of JPS6449519A publication Critical patent/JPS6449519A/en
Publication of JPH0736804B2 publication Critical patent/JPH0736804B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Thermally Insulated Containers For Foods (AREA)

Abstract

PURPOSE: To provide a lightweight thermos bottle having excellent heat retaining properties and anticorrosive properties by forming an opening in the bottom of an outer bottle, placing sealing member having a larger diameter than this opening with a metal for diffusion welding interposed, placing a seal plate around the evacuation hole formed at the sealing member while a solid brazing material is interposed, and subjecting it to a vacuum heating process. CONSTITUTION: An opening 3 is formed in the bottom of an outer bottle 2 as facing upward, and around this opening 3, a sealing member 4 having a larger diameter than the opening 3 is placed where an insert metal 7 made of a metal for diffusion welding is interposed. A solid brazing material 8 is provided at certain intervals around the evacuation hole provided on the sealing member 4, and a seal plate 6 is placed on the solid brazing material 8. The obtained assembly is put in a vacuum heating furnace and undergoes an evacuating and a heating processes. The seal plate 6 sinks by its own weight, blocks the evacuation hole 5, and is put in tight attachment to the sealing member 4. By subsequent cooling, the dispersive joining part of the bottom of outer bottle 2 with the sealing member 4 and the solid brazing material 8 are solidified so that the void 9 is sealed in a vacuum.
JP20743887A 1987-08-21 1987-08-21 Manufacturing method of metal thermos Expired - Lifetime JPH0736804B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20743887A JPH0736804B2 (en) 1987-08-21 1987-08-21 Manufacturing method of metal thermos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20743887A JPH0736804B2 (en) 1987-08-21 1987-08-21 Manufacturing method of metal thermos

Publications (2)

Publication Number Publication Date
JPS6449519A true JPS6449519A (en) 1989-02-27
JPH0736804B2 JPH0736804B2 (en) 1995-04-26

Family

ID=16539769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20743887A Expired - Lifetime JPH0736804B2 (en) 1987-08-21 1987-08-21 Manufacturing method of metal thermos

Country Status (1)

Country Link
JP (1) JPH0736804B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04200511A (en) * 1990-11-30 1992-07-21 Odashima Kibutsu Seisakusho:Kk Manufacture of vacuum bottle made of double metal
JP2009269047A (en) * 2008-05-02 2009-11-19 Thermos Kk Method of sealing vacuum structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04200511A (en) * 1990-11-30 1992-07-21 Odashima Kibutsu Seisakusho:Kk Manufacture of vacuum bottle made of double metal
JP2009269047A (en) * 2008-05-02 2009-11-19 Thermos Kk Method of sealing vacuum structure

Also Published As

Publication number Publication date
JPH0736804B2 (en) 1995-04-26

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