Mit einer Korrosions-und Abnutzungs-beständigen Legierung verbundenes Ventil und Vorrichtungen, bei denen das Ventil verwendet wird

摘要

The object of the present invention is to provide a valve characterized by excellent corrosion and wear resistance and maintainability by bonding corrosion and wear proof alloy containing non-continuously distributed eutectic carbide to the sliding portions of various types of apparatuses and valves by diffusion bonding. Another object of the present invention is to improve the maintainability of a thermal and nuclear power plant and to provide a nuclear power plant comprising the recirculating water which ensures excellent working safety, in particular. A valve and apparatus of a power plant using said valve characterized in that corrosion and wear proof alloy is bonded to the sliding portion, wherein said corrosion and wear proof alloy is further characterized in that network-formed eutectic carbide in the alloy containing the cast structure base metal and eutectic carbide is formed into( multiple) granules or lumps having the particle size of 30 microns or less so that said eutectic carbide is non-continuously distributed.