公开(公告)号：NO20071465A

公开(公告)日：1998-08-10

申请号：NO20071465

申请日：2007-03-19

Applicant: THERMATOOL CORP

Inventor： SCOTT PAUL ,  TURZHITSKY MICHAEL ,  LIE THOMAS ,  RUDD WALLACE C

IPC: B23K13/08 ,  H05B6/02 ,  H05B6/08

CPC classification number: B23K13/08 ,  H05B6/08

公开(公告)号：NO20071465L

公开(公告)日：1998-08-10

申请号：NO20071465

申请日：2007-03-19

Applicant: THERMATOOL CORP

Inventor： SCOTT PAUL ,  TURZHITSKY MICHAEL ,  LIE THOMAS ,  RUDD WALLACE C

IPC: B23K13/08 ,  H05B6/02 ,  H05B6/08

Abstract: High frequency electrical heating apparatus in which metal parts (10) are heated as they are advanced, either for annealing or forge welding purposes, and in which the electrical heating current is supplied by a solid state D.C. to A.C. inverter (2-5, 8) through a load matching and frequency control circuit (13) which maintains the desired load current and current frequency with changes in the load impedance caused by the metal parts (10) as they are advanced.