VALVE BONDED WITH CORROSION AND WEAR PROOF ALLOY AND APPARATUSES USING SAID VALVE

摘要

An object of the present invention is to provide a valve characterized by excellent corrosion and wear resistance and maintainability by bonding a 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. A valve and apparatus of a power plant using said valve characterized in that a 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 a particle size of 30 microns or less so that said eutectic carbide is non-continuously distributed.