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Patent Searching and Data


Title:
MANUFACTURE OF MULTI-LAYER CATHODE SLEEVE
Document Type and Number:
Japanese Patent JPS63143718
Kind Code:
A
Abstract:

PURPOSE: To enable a multi-layer cathode sleeve for a long life oxide cathode to be obtained by forcibly pressing a cup-state body structure to a cylindrical sleeve body structure by applying pressure to both body structures made unitedly.

CONSTITUTION: A cylindrical sleeve body structure 2 which is made to be a substrate metal is formed by only a nickelchrome alloy and furthermore a cup-state body structure 1 having a whole shape adaptable to a tip opening part of the cylindrical sleeve body structure is formed and prepared by only a cathode nickel. In this case a mouth edge of the cup-state body structure 1 has a ring-state expansion part 1a. The cup-state body structure 1 of nickel is engaged and united with a tip closing part of the cylindrical sleeve body structure 2 of the nickel-chrome alloy, placed on an under side die 3 of a super hard metal of a pressure device, an upper side die 4 of the super hard metal is made to descend in a moment, and thereby a shockingly high pressure F is applied to the cup-state body structure 1. A cathode sleeve in which both body structures are firmly united is obtained with the cup-state body structure 1 forcibly pressed in or pressed to the cylindrical sleeve body structure 2.


Inventors:
Kamozawa, Hirofumi
Kudo, Shigezo
Application Number:
JP1986000290032
Publication Date:
June 16, 1988
Filing Date:
December 04, 1986
Export Citation:
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Assignee:
NEC CORP
TOKYO KASOODE KENKYUSHO:KK
International Classes:
H01J9/04; (IPC1-7): H01J9/04