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    • 11. 发明申请
    • Getter Material And Evaporable Getter Device Using The Same, And Electron Tube
    • 吸气材料和可蒸发吸气装置使用相同和电子管
    • US20080012486A1
    • 2008-01-17
    • US11814860
    • 2005-01-27
    • Hiromichi HorieYoshiyuki FukudaHiromasa KatoNobuaki NakashimaYasuhisa Makino
    • Hiromichi HorieYoshiyuki FukudaHiromasa KatoNobuaki NakashimaYasuhisa Makino
    • H01J29/94H01J7/18
    • H01J29/94B01J20/3035B01J2220/42B22F1/0003B22F3/02H01J7/183H01J7/186
    • The present invention provides a getter material configured by a pressed powder mixture comprising Ba—Al alloy powder and Ni powder, wherein when the pressed powder mixture is heated in a vacuum atmosphere or an inert gas atmosphere, a temperature at which an exothermic reaction starts is ranging from 750° C. to 900° C. According to this getter material, since the temperature at which the pressed powder mixture starts the exothermic reaction is set within a range from 750° C. to 900° C., there can be provided a getter material and an evaporation type getter device capable of suitably controlling an evaporation amount of getter components under a stable condition, and is excellent in responsiveness because a time ranging from a starting time of heating the getter material to a starting time of evaporation of the getter components can be shortened. In addition, the metal container to be filled with the getter material is free from deformation and melting, and a heat-evaporation process time of the getter material can be shortened, so that there can be provided the evaporation type getter device excellent in responsiveness because a time required for the electron tube to attain to a predetermined vacuum degree can be also shortened.
    • 本发明提供一种由包含Ba-Al合金粉末和Ni粉末的压制粉末混合物构成的吸气剂材料,其中当在真空气氛或惰性气体气氛中加压压粉混合物时,发生放热反应的温度为 根据该吸气剂材料,由于压粉混合物开始放热反应的温度设定在750℃至900℃的范围内,因此可以提供 吸气剂材料和蒸发型吸气装置,其能够在稳定的条件下适当地控制吸气剂组分的蒸发量,并且响应性优异,因为从吸气剂材料的加热开始时间到蒸发的起始时间 吸气剂组分可以缩短。 此外,要填充吸气剂材料的金属容器没有变形和熔化,并且可以缩短吸气剂材料的热蒸发处理时间,从而可以提供响应性优异的蒸发型吸气装置,因为 电子管达到预定真空度所需的时间也可以缩短。