Method of providing durable, slick sliding surfaces on extrusion forming apparatus, and the product thereof

Method of providing durable, slick sliding surfaces on extrusion forming apparatus, and the product thereof

The provision of a durable, slick sliding surface on metal faces of plastic forming extrusion apparatus such as extruder nozzles and dies. The durable, slick sliding metal surface is provided by burnishing and heat treating a polysiloxane fluid on the face of the metal. The burnishing comprises vigo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PROBER, MAURICE, VOSTOVICH, JOSEPH EDWARD
Format: Patent
Sprache:eng
Schlagworte:
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
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:The provision of a durable, slick sliding surface on metal faces of plastic forming extrusion apparatus such as extruder nozzles and dies. The durable, slick sliding metal surface is provided by burnishing and heat treating a polysiloxane fluid on the face of the metal. The burnishing comprises vigorous rubbing of the polysiloxane fluid treated metal face with a material relatively softer than the metal face being treated, effectively over the entire surface treated.