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System, production plant, and method

A technology for manufacturing equipment and cooling systems, applied in the field of selective surface hardening, which can solve problems such as disadvantages

Inactive Publication Date: 2016-10-12
THYSSENKRUPP ROTHE ERDE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a process is extremely disadvantageous if the interest lies in the fully automatic execution of the manufacture of rolling bearings, especially large rolling bearings

Method used

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  • System, production plant, and method
  • System, production plant, and method
  • System, production plant, and method

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Embodiment Construction

[0034] In the individual figures, identical components are always provided with the same reference numerals and are therefore generally also named or mentioned only once in each case.

[0035] figure 1A system 1 for spatially limiting the heating of a workpiece 10 during its hardening is shown according to a first exemplary embodiment of the invention. For the hardening of the workpiece 10 , an inductor 2 is provided here, which is supplied with an alternating current and then acts partially, ie in a spatially limited manner, on the workpiece 10 by the magnetic field induced by the alternating current. During this process, in particular the surface layer of the workpiece 10 is heated and thus preferably heated to approximately 1000° C. within a few seconds. In the case of conventionally used materials, the heating produces as homogeneous austenite as possible in the surface layer and the highest possible fraction of martensite is formed by subsequent quenching of this heated ...

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PUM

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Abstract

The invention relates to a system for localized heating when hardening a workpiece, said system comprising an inductor for partially heating the workpiece and a lateral cooling device for limiting the heat spreading in the workpiece as a result of the inductor action, the lateral cooling device being disposed directly on the inductor and being securable in the position thereof.

Description

technical field [0001] The invention relates to a system for spatially limiting the heating of a workpiece during its hardening and a method for induction hardening, in particular selective case hardening, of a workpiece. Background technique [0002] Induction hardening is a common method for partially hardening workpieces and is known, for example, from document DE 10 2012 101304 A1. The alternating magnetic field caused by the inductor is conventionally guided here onto the electrically conductive workpiece. The magnetic field generates eddy currents in the target area (surface area of ​​the workpiece), which cause the heating required for the hardening process. Typically temperatures of about 1000° C. can be achieved on the workpiece surface in this way. [0003] This increased heat on the workpiece surface then itself acts as a heat source for regions of the workpiece which are arranged in the surrounding environment and which in some cases do not want hardening, or w...

Claims

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Application Information

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IPC IPC(8): C21D1/10C21D1/667C21D9/40
CPCC21D1/10C21D1/667C21D9/40C21D9/38Y02P10/25
Inventor 马可·伯特兴马蒂厄·朗厄尔斯塔蒂亚娜·泽德勒
Owner THYSSENKRUPP ROTHE ERDE