| 摘要 |
PURPOSE:To improve the deposition resistance and reignition occurrence rate by arranging a contact made of Cu-Cr alloy by the inherent sintering method on one end and arranging a contact made of Cu-Cr alloy by the infiltration method on the other end. CONSTITUTION:A solid phase sintered Cu-Cr alloy is formed by molding and sintering the Cu and Cr metal powder by the powder metallurgy method, the mixing ratio can be changed with the wide composition ratio of Cr 25-75wt.% against Cu 75-25wt.%. The infiltrated Cu-Cr alloy on one end is formed by sintering the Cr powder by the powder metallurgy method as a skeleton and infiltrating Cu into void sections of this skeleton. The mixing ratio is the composition ratio of Cr 40-75wt.% against Cu 60-25wt.%. The deposition resistance and reignition occurrence rate are improved while merits of the contacts of respective Cu-Cr alloys are maintained. |
