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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Powder metallurgy repair technique

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B23P-006/04    B23K-031/02   
미국특허분류(USC) 228/119 ; 228/175 ; 228/176 ; 228/239
출원번호 US-0572582 (1990-08-27)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 58  인용 특허 : 0
초록
▼

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...

대표
청구항
▼

A method for liquid phase sintering comprising, partially solid state sintering a metallic powder onto a metallic or alloy substrate at a temperature where the metallic powder and the substrate remain solid, applying a layer of alloy having a melting point lower than that of the metallic powder and the metallic or alloy substrate to a surface of the sintered metallic powder and liquid phase sintering the sintered metallic powder with the lower melting alloy at a temperature at which the metallic or alloy substrate is solid, wherein the metallic powder, t...

이 특허를 인용한 특허 피인용횟수: 58

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