公开(公告)号：JPS6082602A

公开(公告)日：1985-05-10

申请号：JP18880483

申请日：1983-10-07

Applicant: NAT AEROSPACE LAB ,  MASUDA YOSHIMICHI ,  WATANABE KAGOZOU ,  TAKEGAWA JIYUNJIROU ,  SUMITOMO ELECTRIC INDUSTRIES

Inventor： SHINNO MASAYUKI ,  SUZUKI AKIO ,  YATSUYANAGI NOBUYUKI ,  KUMAKAWA AKINAGA ,  SASAKI MASAKI ,  TAMURA HIROSHI ,  ONO FUMIE ,  MASUDA YOSHIMICHI ,  WATANABE KAGOZOU ,  TAKEGAWA JIYUNJIROU ,  DOI YOSHIHIKO ,  KUROISHI ATSUSHI ,  TAKEDA YOSHINOBU ,  OCHI SHIGEKI

IPC: B22F7/08 ,  B22F5/00 ,  B22F5/10 ,  B22F7/06 ,  F02K9/62 ,  F02K9/64

Abstract: PURPOSE:To manufacture a minute and solid external cylinder of a combustion chamber with hydrostatic pressure molding at comparatively low pressure by furnishing a reinforcing external cylinder to the outside of a Cu or an Ag-Sn Cu alloy sintered layer. CONSTITUTION:A hollow cylinder 1 made of oxygen-free copper is worked into an internal cylinder having a coolant passage groove 2 by numerical control mechanical cutting. A molten filler of Wood's metal 7 is poured into the groove 2 and the inside of the internal cylinder 1, and casted as a core. The surplus Wood's metal 7 is removed again by machining. The machined body is placed in a cylindrical mold 8, and copper powder 3 is packed into the clearance between the mold 8 and the cylinder 1. Then a powder packed layer is compression molded by hydrostatic pressure molding.