Shaft provided with a magnet for an air flow rate adjustment valve in an internal combustion engine

A manufacturing method of a shaft (6) provided with a magnet (24) for an air flow rate adjustment valve (1) in an internal combustion engine; the method presents the steps of: arranging a first mold (26) which negatively reproduces the shape of the shaft (6) and determines the formation of a seat (2...

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Bibliographische Detailangaben
Hauptverfasser:	BELLATO NAZARIO, COLLI MARCELLO, PICIOTTI ROBERTO, SIGNORELLI GIORGIO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BASIC ELECTRIC ELEMENTS BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES ELECTRICITY HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDUCTANCES LIGHTING MAGNETS MECHANICAL ENGINEERING PERFORMING OPERATIONS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSFORMERS TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A manufacturing method of a shaft (6) provided with a magnet (24) for an air flow rate adjustment valve (1) in an internal combustion engine; the method presents the steps of: arranging a first mold (26) which negatively reproduces the shape of the shaft (6) and determines the formation of a seat (28) for the magnet (24); injecting a molten plastic material inside the mold (26) in order to form the shaft (6) provided with the seat (28) for the magnet (24) by injection molding; arranging a second mold (27) which surrounds the seat (28) for the magnet (24); and injecting a molten magnetic polymer in the second mold (27) for forming the magnet (24) by injection molding.