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Inductor for inductor hardening of metal, rod-shaped toothed racks

An induction hardening and inductor technology, applied in the field of inductors, can solve the problems of time-consuming processing time and high cost

Inactive Publication Date: 2010-03-24
EFD INDUCTION SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is generally technically costly and particularly time-consuming in terms of processing time

Method used

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  • Inductor for inductor hardening of metal, rod-shaped toothed racks
  • Inductor for inductor hardening of metal, rod-shaped toothed racks
  • Inductor for inductor hardening of metal, rod-shaped toothed racks

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] Figures 1 to 4 The embodiment in shows an inductor for hardening the toothed rack 1 . The inductor comprises a total of four elongated inductor elements 2 which extend parallel to the toothed rack 1 . In this case, the two sensor elements 2 are situated opposite the toothed side of the toothed rack 1 , while the two sensor elements 2 extend in the region of the rear side of the toothed rack 1 .

[0019] The mutually adjacent ends of the sensor elements 2 are connected to each other both mechanically and electrically by means of connecting elements 3 . This means that the inductor elements 2 are electrically connected in series with their connecting elements 3 , wherein the current flows along the inductor elements 2 after passing the respective connecting elements 3 back and forth as viewed in the longitudinal direction of the toothed rack 1 .

[0020] List of reference signs

[0021] 1 rack

[0022] 2 sensor element

[0023] 3 Connection elements

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Abstract

The invention relates to an inductor for the inductor hardening of metal, rod-shaped toothed racks (1), wherein the shell surface of the toothed rack (1) is substantially plane in the region of the teeth, and wherein the remaining shell surface of the toothed rack (1) is profiled in the cross-section. The invention proposes that both the toothed rack (1) and the inductor be disposed in a stationary manner during the hardening process. For this purpose the inductor is formed by a plurality of individual, substantially rod-shaped inductor elements (2), each extending parallel to the longitudinalaxis of the toothed rack (1), wherein the teeth of at least one inductor element (2) extend along the shell surface of the toothed rack (1), the inductor element hardening this predetermined surfaceregion of the toothed rack (1), and wherein at least one inductor element (2) extends along the remaining shell surface of the toothed rack (1), and hardens this predetermined surface region of the toothed rack (1).

Description

technical field [0001] The invention relates to an inductor for the induction hardening of rod-shaped metal racks according to the preamble of claim 1 . Background technique [0002] The inductor according to the invention is designed for racks with a non-circular cross-section. Such a toothed rack is essentially flat in the region of the teeth arranged one behind the other, while the remaining cross-section has a profiled profile, for example circular or essentially oval or rectangular or trapezoidal. [0003] For the induction hardening of toothed racks, it has hitherto been known to arrange the toothed rack stationary and to move a stirrup-shaped inductor along the toothed rack during the induction hardening. This is overall technically expensive and also particularly time-consuming in terms of processing time. Contents of the invention [0004] Proceeding from this, it is the object of the present invention to provide an improved inductor for the induction hardening ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/40H05B6/02C21D1/10
CPCH05B6/40C21D9/0068C21D1/10Y02P10/25H05B6/02
Inventor L·马克戈德
Owner EFD INDUCTION SA
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