Title:
【発明の名称】粉末冶金的修理法
Document Type and Number:
Japanese Patent JP3166856
Kind Code:
B2
Abstract:
To repair or join sections of a metal article, matching metal powder is sintered in the solid state to form a porous structure in the joint. A layer of matching powder, modified to incorporate melting point depressants such as boron and silicon is subsequently added to the surface of the sintered region. The joint is processed at a temperature where the modified layer melts while the sintered layer and base metal remain solid. The modified material flows into the sintered layer by capillary action and promotes liquid phase sintering, resulting in a dense joint with properties approaching those of the base metal.
Inventors:
River Day, Joseph
Rhodon, paul
Ellison, Keith
Rhodon, paul
Ellison, Keith
Application Number:
JP50593591A
Publication Date:
May 14, 2001
Filing Date:
August 28, 1990
Export Citation:
Assignee:
Riverday Engineering Limited
International Classes:
B22F7/04; B22F7/06; B23K28/00; B23K31/02; B23K35/30; B23K35/32; B23P6/04; C22C19/05; (IPC1-7): B22F7/04; B23K35/30; C22C19/05
Domestic Patent References:
| JP6119705A | ||||
| JP56108804A | ||||
| JP5569203A |
Attorney, Agent or Firm:
Heikichi Odashima