Siemens Aktiengesellschaft

Peter Eckl

Johann Hofrichter

Norbert Zimmermann

Norbert Mitlmeier

Ralph-Ronald Göbel

Matthias Knab

A method is disclosed for producing a pole face of a metal closing elements of a solenoid, especially for electromechanical switchgear. In at least one embodiment, the method includes machining the surface of a crude stamped part of the closing element to give the pole face. A corresponding armature, yoke, solenoid and switchgear are also disclosed.

Method for production of a pole face of a metallic closing element of an electromagnet

A method for producing a solenoid with a center limb and two outer pole shanks that have one pole surface each and one back resting so that it faces away from it. The back is first at least partially freely formed. The solenoid is then elastically tensioned towards the back by a tensioning device. In the tensioned state, the pole surfaces are ground so that the solenoid, when withdrawn from the tensioning device, has a convex support surface constituted by the pole surfaces.

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Amberg, Germany

Peter Eckl