METHOD OF HIGH-FREQUENCY PROCESSING OF POLYAMIDE PARTS AND DEVICE TO THIS END Russian patent published in 2013 - IPC B29C65/04 F26B7/00 F26B19/00 H05B6/46 

FIELD: process engineering.

SUBSTANCE: invention relates to high-frequency processing of roller bearing polyamide cage. Proposed method comprises embracing the part by high-potential and earthed electrodes of operating capacitor connected to high-frequency generator and applying pressure thereto. Note here that said part is embraced over top, bottom and inner side surfaces of plates to create spatial circuit 2×n of operating capacitors and simultaneously, connection to generator is made. This makes the potential difference between top high-potential plate and electrodes connected via bottom contact group to bottom earthed plate and bottom earthed plate and electrodes connected via top contact group to top high-potential plate. Heating is performed to polyamide recrystallisation start temperature. Then, generator is switched off on turning the part about its axis by one electrode to heat unprocessed surfaces.

EFFECT: recovery of durability of bearing cage made of polyamide.

6 cl, 3 dwg, 1 tbl, 1 ex