Title :
New developments for vacuum preparation and casting according to the automatic pressure gelation process at elevated temperatures
Author_Institution :
W. Hedrich Vakuumanlagen GmbH & Co. KG, Ehringshausen-Katzenfurt, Germany
Abstract :
This paper is essentially divided into two. The subject “continuous vacuum preparation” presents a new development that allows complete degassing of cast resin in a single passage for further processing under vacuum. The equipment can be used for both low-viscous and extremely high-viscous cast resin. In the automatic pressure gelation process for the production of insulating parts for the electric industry, the additional preheating of the cast resin compound allowed a major reduction of cycle times by up to 50% to be achieved. New developments in the equipment range for the application of this process by a DUO pressure accumulator and ultra-fast-compound (UFC) heater is explained in detail and examples are given
Keywords :
casting; manufacture; materials preparation; organic insulating materials; DUO pressure accumulator; automatic pressure gelation process; cast resin compound preheating; cast resin degassing; casting; continuous vacuum preparation; electric industry; high-viscous cast resin; insulating parts; low-viscous cast resin; ultra-fast-compound heater; vacuum preparation;
Conference_Titel :
Electrical Insulation Conference, 1997, and Electrical Manufacturing & Coil Winding Conference. Proceedings
Conference_Location :
Rosemont, IL
Print_ISBN :
0-7803-3959-2
DOI :
10.1109/EEIC.1997.650957