公开(公告)号：WO1990011154A1

公开(公告)日：1990-10-04

申请号：PCT/SU1989000073

申请日：1989-03-21

Applicant: INSTITUT STRUKTURNOI MAKROKINETIKI AKADEMII NAUK ... ,  MERZHANOV, Alexandr Grigorievich ,  BOROVINSKAYA, Inna Petrovna ,  JUKHVID, Vladimir Isaakovich ,  KACHIN, Alexandr Rafaelievich

Inventor： INSTITUT STRUKTURNOI MAKROKINETIKI AKADEMII NAUK ...

IPC: B22F07/04

CPC classification number: B22F7/04 ,  C04B35/651 ,  C22C1/058 ,  C23C24/10

Abstract: The proposed method relates to powder metallurgy. The method provides for applying an exothermic mix on a metal sublayer, putting the blank in a heat treatment zone where a gas medium pressure is created of 1 to 100 atm. and the exothermic mix is ignited with the subsequent reaction of its components at a burning regime at a temperature by 1.6 to 2.6 times higher than the melting point of the metal sublayer and at such a level of the heat-removal at which only surface layer of the metal sublayer is melted, after which the blank is cooled down and the desired article is obtained. The invention may be most effectively used, in particular, for making flat laminar articles working under heavy conditions of abrasive wear in aggressive media at high temperatures.