专利检索 ap:("Meccanotecnica Umbra S.p.A.") AND inv:"VALENTINI, Francesco" 第 1 页

1.

发明公开
SURFACE TREATMENT PROCESS FOR CERAMIC MECHANICAL SEAL RINGS OF PUMPS AND RING OBTAINED WITH SAID PROCESS 审中-公开
标题翻译：机械密封表面的处理方法RINGS陶瓷泵和有顺序GOT RING

公开(公告)号：EP1951489A1

公开(公告)日：2008-08-06

申请号：EP06810023.9

申请日：2006-10-12

申请人： Meccanotecnica Umbra S.p.A.

发明人： ZAMBOTTO, Italo , VALENTINI, Francesco

IPC分类号： B28B3/02 , F16J15/00

CPC分类号： B28B3/021

摘要： The present invention relates to a surface treatment process for ceramic mechanical seal rings of pumps, of the type comprising a first cold-moulding process of the ceramic powders in a suitable die and a second sintering process of the ring, characterised in that the moulding process is performed with a punch with head provided with a plurality of punctiform micro-projections; another object of the present invention is the seal ring obtained with the said process.