Device for heating a press tool using magnetic induction heating

Details Device for heating a press tool using magnetic induction heating Device for heating a press tool using magnetic induction heating

1998-07-07

1999-08-10

Leung, Philip H.

Electric heating

Inductive heating

With workpiece support

219633, 219632, 219670, 219672, 1562724, 4251748R, 264403, H05B 610

Patent

active

059354763

ABSTRACT:
A device for heating a press tool (4), which is mounted in a press (3) for manufacturing products wholly or partially of plastic or composite, consists of a core (1) of electric sheet steel, a coil arrangement (9, 10, 11) placed around the core (1), and a voltage source (12). The voltage source (12) is connected to the coil arrangement (9, 10, 11) for generating a magnetic field in and around the core (1). The core (1) has two poles (8a, 8b) which, between themselves, receive the press tool (4) and are displaceable in relation to one another for applying a press force to the press tool (4) and conduct the generated magnetic field into the press tool (4). A press (3) comprises such a heating device and is used in a manufacturing method where the press tool (4) is heated by the magnetic field supplied thereto.

REFERENCES:
patent: 1725465 (1929-08-01), Manson
patent: 3467806 (1969-09-01), Dixon
patent: 4311896 (1982-01-01), Junya
patent: 5123989 (1992-06-01), Horiishi et al.

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