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OwnerJury Gordeevich Borzyak, Alexandr Ivanovich Borisenko +3inventors
InventorsJury Gordeevich Borzyak, Alexandr Ivanovich Borisenko, German Mikhailovich Tjufilin, Alexandr Ivanovich Rolik, Alexandr Ivanovich Yakovlev
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A method of manufacturing electrotechnical articles, preferably magnetic keys, from a magnetodielectric composition. The method comprises mixing together iron powder and a thermosetting resin containing a curing agent in vacuo in order to remove air inclusions and the volatile products of the thermosetting reaction; batching the resulting composition; rolling the batched composition to obtain flat sheet blanks of a thickness greater than that of finished products; molding and simultaneously pre-forming the sheets to obtain compacted blanks, and subjecting the blanks first to cold curing and thereafter to step-wise heat treatment.
A method for the manufacture of electrotechnical articles, such as magnetic core members for electrical machines, from a magnetodielectric composition which comprises mixing together iron powder and a thermosetting resin containing a curing agent in vacuo to remove air inclusions and thermosetting reaction volatile products;
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