发明名称 |
SURFACE TREATMENT PROCESS FOR CERAMIC MECHANICAL SEAL RINGS OF PUMPS AND RING OBTAINED WITH SAID PROCESS |
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. |
申请公布号 |
EP1951489(A1) |
申请公布日期 |
2008.08.06 |
申请号 |
EP20060810023 |
申请日期 |
2006.10.12 |
申请人 |
MECCANOTECNICA UMBRA S.P.A. |
发明人 |
ZAMBOTTO, ITALO;VALENTINI, FRANCESCO |
分类号 |
B28B3/02;F16J15/00 |
主分类号 |
B28B3/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|