Method of manufacturing metallic vacuum double-walled container

Details Method of manufacturing metallic vacuum double-walled container Method of manufacturing metallic vacuum double-walled container

1995-05-16

1996-12-31

Vo, Peter

Metal working

Method of mechanical manufacture

Assembling or joining

29422, B23P 1904

Patent

active

055881971

ABSTRACT:
A metallic vacuum double-walled container and manufacturing method therein is provided in which an inner container and outer container are both formed from a metal. From among the aforementioned, at least the outer container possesses a body which is formed by rolling a steel plate with a Vickers hardness of 250.about.600. The outer container is then shaped into a cylindrical body, and joined to a processed inner container at their mouth portions to form a metallic double-walled container. This metallic double-walled container is then heat treated at a temperature of 200.degree..about.600.degree. C. under a vacuum, and the space between the two walls of the metallic double-walled container is vacuum sealed to form the final product.

REFERENCES:
patent: 4251252 (1981-02-01), Frazier
patent: 4288894 (1981-09-01), Jacobellis
patent: 4471206 (1984-09-01), Nagai
patent: 4493201 (1985-01-01), Schmidt
patent: 5082508 (1992-01-01), Nelson
patent: 5153977 (1992-10-01), Toida et al.
patent: 5430927 (1995-07-01), Rogers
ASM Handbook, vol. 4, "Heat Treating", Aug. 1991, revised by Joseph Douthett, pp. 774-776.
Metals Handbook, vol. 1, "Properties and Selection: Irons Steels & High Performance Alloys", 1990 ASM International, pp. 888-889.

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