Title:
MANUFACTURE METHOD FOR ENGINE VALVE LIFTER
Document Type and Number:
Japanese Patent JPH04246210
Kind Code:
A
Abstract:
PURPOSE:To increase anti-wear property and rigidity of the skirt part of a valve lifter. CONSTITUTION:Hard particles 5 are adhered by coating, etc., beforehand onto the internal walls of a die 4 in which an anti-wear disk 2 is inserted, an aluminum alloy skirt material 3 is inserted into the die 4, and a backward extrusion of the skirt material and a plastic connection of the disk 2 to the skirt material 3 are made simultaneously. In this case, the skirt material 3 is pressed in to expand and the hard particles 5 adhered onto the surface of the die 4 are embedded into the surface of the skirt material 3, to form a valve lifter in which hard particles 5 are combined on a lower external surface of the skirt material 3.
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Inventors:
ISHIDA YASUAKI
MORIMOTO SHIGENORI
NOMURA KAZUMASA
MASUDA YUKIO
UESUGI TATSUYA
MORIMOTO SHIGENORI
NOMURA KAZUMASA
MASUDA YUKIO
UESUGI TATSUYA
Application Number:
JP1104091A
Publication Date:
September 02, 1992
Filing Date:
January 31, 1991
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
B21C23/22; F01L1/14; (IPC1-7): B21C23/22; F01L1/14
Attorney, Agent or Firm:
Junichi Shindo