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A camshaft formed by integrating at least a bearing cylindrical member and a cam piece with a shaft of steel pipe by wax binding. The cam piece is cast iron where a chilled layer is formed. Wax material used in the wax bonding is silver solder. A predetermined portion of the cam piece is nickel-plat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAMAMOTO, TOSHIKAZU, KOBAYASHI, CHUTARO, SUZUKI, YOSHIKI
Format:	Patent
Sprache:	ger
Schlagworte:	BEARINGS BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ELEMENTS OR CRANKSHAFT MECHANISMS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A camshaft formed by integrating at least a bearing cylindrical member and a cam piece with a shaft of steel pipe by wax binding. The cam piece is cast iron where a chilled layer is formed. Wax material used in the wax bonding is silver solder. A predetermined portion of the cam piece is nickel-plated. Abrasion of a slide surface of the valve lifter as a counterpart in sliding of the cam piece can be prevented. Thus, the manufacturing cost of the valve lifter can be suppressed by employing a general material as the valve lifter. As the cam piece is a cast product, the productivity of the cam piece can be improved. The manufacturing cost of the valve lifter can be suppressed, and at the same time, the weight of the camshaft can be reduced and the manufacturing cost of the camshaft can be reduced.