Device for demagnetizing elongated components and method for demagnetizing such components

Abstract

A device for demagnetizing a ferromagnetic, elongated component of any length having a uniform profile which has an accessible surface on one side along its length. The device comprises a rod-shaped,ferromagnetic core having a circumferential shell surface, which is closed off by a front end face and a rear end face. At least one coil is wrapped around the shell surface, with the coil connected to a current source which can generate an alternating current, whereby a magnetic alternating flux is induced in the ferromagnetic core, the flux entering and exiting at the two end faces. A coil is wrapped around the shell surface, with the coil connected to a current source which can generate a direct current to superimpose the magnetic alternating flux with a thereby induced magnetic unidirectional flux through the ferromagnetic core, the flux entering and exiting at the two end faces. The invention is advantageous in that ferromagnetism core travels past the component with a constant distance, and the AC magnetic flow and the DC magnetic flow maintain constant.

Description

technical field [0001] The invention relates to a device for degaussing an elongated ferromagnetic member of arbitrary length, having a uniform profile along its longitudinal axis, which member has an accessible surface on one side along its length, wherein the device Comprising a rod-shaped ferromagnetic core with a surrounding shell surface, which shell surface is closed by a front end surface and a rear end surface, wherein the top end surfaces are oriented away from each other, and wherein at least one Coil connected at its ends to a current source capable of generating an alternating current (AC), whereby an alternating magnetic flux (Magnetwechselffluss) is induced in the ferromagnetic core, which flows on both end faces and at the shell In and out of the non-circling area of ​​the surface. The invention also relates to a method for demagnetizing such a component. Background technique [0002] Various devices are known for degaussing ferromagnetic bodies. Typically,...

AI Technical Summary

Problems solved by technology

This results in reliable information about the train's position being no longer available in the catenary center, which can lead to severe signal disturbances and ultimately accidents

[0010] Other application examples are permanently installed carriers, but also long iron pipes, which are too large to enter the flux circuit for degaussing with their entire circumference

The equipment used for this will be very large, and the huge current consumption will also cause additional problems

In addition, the residual magnetization caused by the surrounding environment may not be eliminated or the elimination needs to pay a lot of expense

Images