公开(公告)号：US4220891A

公开(公告)日：1980-09-02

申请号：US25582

申请日：1979-03-30

申请人： Hisashi Ando ,  Ko Soeno ,  Hiroshi Sakamoto ,  Testuo Oyama ,  Takao Kawamura ,  Hiroshi Fukushima

发明人： Hisashi Ando ,  Ko Soeno ,  Hiroshi Sakamoto ,  Testuo Oyama ,  Takao Kawamura ,  Hiroshi Fukushima

IPC分类号： H01J1/14 ,  H01J1/15 ,  H01J29/04 ,  H01J19/06

CPC分类号： H01J1/14

摘要： A directly heated cathode for electron tube having a stable electron emission characteristic and a low cut-off voltage is provided. The cathode comprises a base metal of an alloy consisting essentially of 20-30% by weight of tungsten and a trace amount to 0.25% by weight of zirconium, the balance being nickel, binder dots of metallic nickel powders distributed on a flat part at the front side of the base metal, and a layer of thermoelectron emission oxides laid on the flat part at the front side of the base metal. The layer of thermoelectron emission oxides is in direct contact with the flat part through clearances among the binder dots of the metallic nickel powders.

摘要翻译： 提供具有稳定的电子发射特性和低截止电压的用于电子管的直接加热阴极。 阴极包括基本上由20-30重量％的钨组成的合金的基体金属和微量的0.25重量％的锆，余量为镍，分布在平坦部分上的金属镍粉末的粘结点 贱金属的前侧，以及放置在贱金属前侧的平坦部分上的热电子发射氧化物层。 热电子发射氧化物层通过金属镍粉末的粘合剂点之间的间隙与平坦部分直接接触。

公开(公告)号：US4129801A

公开(公告)日：1978-12-12

申请号：US813240

申请日：1977-07-06

申请人： Ko Soeno ,  Tomio Iizuka ,  Toshio Doi ,  Hisashi Ando ,  Testuo Oyama ,  Hiroshi Sakamoto ,  Akira Misumi

发明人： Ko Soeno ,  Tomio Iizuka ,  Toshio Doi ,  Hisashi Ando ,  Testuo Oyama ,  Hiroshi Sakamoto ,  Akira Misumi

IPC分类号： H01J9/04 ,  H01J29/04 ,  H01J19/06

CPC分类号： H01J29/04 ,  H01J9/04

摘要： The present cathode for cathode ray tube of directly heating type is characterized by comprising a cathode substrate body having two leg pieces extended in the same direction and a flat part connected to one end of each leg piece, prepared by shaping a flat metal plate of nickel- or cobalt-based alloy, a bonding layer having an uneven surface prepared by diffusion bonding by heating a powder layer comprising powders of alloy or mixture of nickel and cobalt formed on the flat part, to which a thermionic emission layer is to be bonded, and the thermionic emission layer, and has a very small deformation when used and a longer life.A cathode with much less deformation and much longer life can be obtained by using a cathode substrate body prepared from a flat metal plate provided with a thinner metal layer of at least one of nickel and cobalt on its surface than the flat metal plate by diffusion bonding.A cathode with much less deformation after the service for a long period and much longer life is obtained by using a cathode substrate body prepared from a flat metal plate provided with a metal layer of at least one of nickel and cobalt having a smaller thickness on its surface than that of the flat metal plate by diffusion bonding, and then applying a plastic working to the flat metal plate to a desired thickness.

摘要翻译： 本发明的直接加热型阴极射线管阴极的特征在于，具有阴极基体，该阴极基体具有沿相同方向延伸的两个腿部件，以及连接到每个腿部件的一端的平坦部件，其通过使镍 或钴基合金，具有通过扩散接合制备的具有不平坦表面的接合层，其通过加热包含在热电子发射层将被结合的平坦部分上形成的合金或镍和钴的混合物的粉末的粉末层， 和热离子发射层，使用时变形非常小，寿命更长。