专利内容由知识产权出版社提供
专利名称：METHOD OF FITTING A VALVE SEATING
RING AND AN APPARATUS THEREFOR
发明人：BROADHEAD, Philip申请号：EP97944003.9申请日：19971003公开号：EP1007824A1公开日：20000614
摘要：The invention concerns a method and a machine for weld-bonding a valveseating ring (34) in an annular recess (30) of a cylinder head (20). The machine comprisesan electrode tool (14) on which the ring is located and an overhead support (18, 40, 44,46) for mounting the cylinder head above the tool. In use the tool is moved upwards intothe recess while a welding current is passed across the cylinder head and the tool,whereby the ring is weld-bonded into the recess, without process spatter entering thecylinder head. There may be two separate tools (14, 16) which operate simultaneously onrespective recesses (30 or 32) although the weld current may be applied sequentially.
申请人：Unova U.K. Limited
地址：26, Temple Street Aylesbury,Buckinghamshire HP20 2RQ GB
国籍：GB
代理机构：Nash, Keith Wilfrid
更多信息请下载全文后查看
