公开(公告)号：US20030034724A1

公开(公告)日：2003-02-20

申请号：US10204945

申请日：2002-08-27

Inventor： Daichi Imabayashi

IPC: H01J019/02 ,  H01J009/02

CPC classification number: H01J1/28 ,  H01J9/047 ,  Y10T29/49002

Abstract: An impregnated type cathode unit and a manufacturing method therefor wherein a porous metal base and a cup member can be firmly joined together without using any interposition and the occurrence of weld defects can be eliminated to improve the reliability and yield of welding between the porous metal base and the cup member. The impregnated type cathode unit is composed of a porous metal base (11) impregnated with an electron emissive material and a cup member (12) for holding the porous metal base (11) so as to cover the bottom surface and side surface of the porous metal base (11) and expose the front surface of the porous metal base (11). A nonporous dense portion (14) is formed on the bottom surface of the porous metal base (11). The bottom portion of the cup member (12) is pressed to be deformed so as to follow the shape of the dense portion (14), thereby forming a close contact region (16). The bottom portion of the cup member (12) and the dense portion (14) of the porous metal base (11) are welded together at the close contact region (16).

Abstract translation: 一种浸渍型阴极单元及其制造方法，其中多孔金属基底和杯形构件可以牢固地接合在一起而不需要任何插入，并且可以消除焊接缺陷的发生，从而提高多孔金属基底之间的焊接的可靠性和产量 和杯子。 浸渍型阴极单元由浸渍有电子发射材料的多孔金属基底（11）和用于保持多孔金属基底（11）的杯状构件（12）构成，以覆盖多孔金属基底的底表面和侧表面 金属基体（11）并露出多孔金属基底（11）的前表面。 在多孔金属基体（11）的底面形成无孔致密部（14）。 杯部件（12）的底部被按压以使其跟随致密部分（14）的形状变形，从而形成紧密接触区域（16）。 杯状构件（12）的底部和多孔金属基底（11）的致密部分（14）在紧密接触区域（16）处焊接在一起。