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Remscheid, Germany

Patent
Sms Elotherm Gmbh | Date: 2010-09-09

An inductor is provided for the simultaneous inductive heating of two tracks or ways which are formed next to one another on a metallic workpiece, having a first segment which is associated with the first track or way and a second segment which is associated with the second track or way, and having two supply arms via which the segments can be connected to a power supply. To enable two tracks or ways to be heated simultaneously to the hardening temperature without heating the material portion situated between the tracks or ways the segments of the inductor and the supply arms are connected together in an inductor in such a way that the fields travelling at right angles to the longitudinal extent of the tracks or ways neutralize each other in the region of the material portion which separates the tracks or ways from one another.


Patent
Sms Elotherm Gmbh | Date: 2010-09-09

A device is provided having at least one inductor for the inductive heating of a zone formed in a metallic workpiece, which zone is adjoined by a narrow material portion which is to be protected against heating up. To enable two tracks or ways arranged next to one another to be heated simultaneously without the portion of material situated between the tracks or ways being heated throughout to this temperature in the process, the invention provides a cooling means which delivers a cooling fluid onto that material portion of the workpiece which is to be protected against heating up. The device is particularly suitable for the simultaneous inductive heating of two tracks or ways which are formed on a workpiece next to one another and at a distance from one another and which are separated by a narrow material portion.


The invention relates to a device for hardening the surface F of a cylindrical workpiece section Z which has an undercut H


Opezzo G.,SMS Elotherm GmbH | Schibisch D.M.,SMS Elotherm GmbH
Elektrowaerme International | Year: 2012

Induction quench and temper (Q&T) has now become firmly established practice, particularly in applications that require precise, fast, flexible and repeatable heat treatment of tubular and bar material. A process in successful use for heat treatment of bar material for many years, induction quench and temper has recently been extended to cover tubular products. The new processes developed include technologies for pipes with upset ends, creating special demands on the induction heating processes used. Source


For many years, integrated Minimill-concepts for the production of hot strip are successfully operating. All individual systems, such as vertical casting machine, roller hearth furnace and the compact rolling are positioned in line, for enabling continuous processing from the liquid steel phase to the coiled hot strip. Extended requirements to the productivity and quality of rolled goods can be answered with the implementation of flexible induction units into these lines. Source

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