Search International and National Patent Collections

1. (WO1991003916) DEVICE FOR INDUCTIVELY HEATING FLAT METAL MATERIALS

Pub. No.:    WO/1991/003916    International Application No.:    PCT/DE1990/000654
Publication Date: Mar 21, 1991 International Filing Date: Aug 27, 1990
IPC: H05B 6/02
Applicants: OTTO JUNKER GMBH
SCHLUCKEBIER, Dieter
Inventors: SCHLUCKEBIER, Dieter
Title: DEVICE FOR INDUCTIVELY HEATING FLAT METAL MATERIALS
Abstract:
The invention discloses a device for inductively heating flat metal materials (4'), with at least one pair of induction coils which form a gap (5) through which the material (4') can pass. The induction coils (1, 2, 3, 4) have an iron core made up of transformer stampings with grooves (17-23 and 25-31) in which current conductors (32-38 and 40-46; 47-60; 64-78) are arranged. The iron cores of at least one inductor coil (1, 2, 3, 4) have grooves which run in a zig-zig or undulating fashion in the direction of motion (16) of the material (4'). The maximum angle these grooves (17-23 and 25-31) make with the direction of motion (16) of the material (4') is 60°, and the current conductors (32-38 and 40-46; 47-60; 64-78) in the grooves (17-23 and 25-31) follow the grooves. The inductor coils (1, 2, 3, 4) of at least one inductor-coil pair have several current conductors (32-38 and 40-46; 47-60; 64-78) located side-by-side, which carry current in the same direction and at least some of which can be switched independently.