Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1992-01-31
1993-10-19
Cuda, Irene
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
298882, B23P 1500
Patent
active
052534189
ABSTRACT:
A tappet for an internal combustion engine consists of a tappet main body and a ceramic seat plate brazed to the tappet main body. The tappet main body is made up of a first part made of low carbon steel and a second part made of metal. In manufacture, the first and second parts are first welded together to constitute the tappet main body, and then the ceramic seat is brazed to the tappet main body. The low carbon steel forming the first part of the tappet main body has such a property that when carburized it can be hardened by making use of the heat for the brazing, and the metal forming the second part of the tappet main body has such a property that it can be hardened by making use of the heat for the brazing.
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Ito Masaya
Taniguchi Masato
Cuda Irene
NGK Spark Plug Co. Ltd.
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