Method and apparatus for making a blade for electrophotographic devices

This details a production method for a blade for electrophotographic devices, made of thermosetting type polyurethane, including the steps of mixing and stirring the liquid polyurethane prepolymer which is a raw material component for a thermosetting type polyurethane polymer and the liquid crosslin...

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Bibliographische Detailangaben
Hauptverfasser:	FUJIWARA, YOSHINORI, TANIGUCHI, TOSHIHARU, SHIGECHIKA, YUICHI, NODA, TAKESHI, TANI, ARATA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAGNETOGRAPHY PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	This details a production method for a blade for electrophotographic devices, made of thermosetting type polyurethane, including the steps of mixing and stirring the liquid polyurethane prepolymer which is a raw material component for a thermosetting type polyurethane polymer and the liquid crosslinking agent, discharging the mixture thereof into a die having a concave cross section in a molding drum, heating it via an endless belt which is in contact with the outer peripheral face of the molding drum and runs with the rotation of the drum 20 to continuously mold a banded blade molding S having a prescribed width, and cutting the blade molding to a prescribed length after cooling it down.