CONTACT POINT MATERIAL FOR VACUUM VALVE, AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a contact point material for a vacuum valve in which a pulverization of an arc-proof component in a conductive component is improved and breaking characteristics and a voltage resisting property are improved. SOLUTION: The contact point material for the vacuum valve is provided with a pair of contact points 12, 14 which are attachable and detachable, and a surface of a base material composing the contact points 12, 14 composed of a conductive component at least out of the conductive component and an arc-proof component undergoes a friction padding treatment in which a padding material of which the arc-proof component particles are dispersed in a conductive component matrix is rotated to form a padded layer in which the arc-proof component particles are pulverized. COPYRIGHT: (C)2009,JPO&INPIT