HITACHI METALS MMC SUPERALLOY, LTD.;Nippon Institute of Technology;Hitachi Metals, Ltd.
发明人:
OHSONE, Jun,WATANABE, Masayuki,TAKIZAWA, Hideo
申请号：
EP20150838920
公开号：
EP3189911(A1)
申请日:
2015.08.27
申请国别(地区):
欧洲专利局
年份:
2017
代理人:
摘要：
A ring molded article manufacturing method capable of reliably and efficiently producing a ring molded article in which dead metal regions are reduced, and a ring material used for producing the ring molded article, are provided. The present invention relates to the method for manufacturing a ring molded article having two convex portions which respectively protrude on both sides of the ring molded article in a direction of a center axis thereof and extend in a direction of a circumeference of the ring molded article. In the manufacturing method, the ring material is placed inside two molds on which concave portions respectively corresponding to the convex portions are formed, in a condition in which the ring material is supported by a region on an outer peripheral side from an outer peripheral side corner in the concave portion of one of the two molds and a region on an inner peripheral side from an inner peripheral side corner in the concave portion of another of the two molds, the ring material is then for
