Heating coil for high-frequency heating device
The heating coil design with opposing current directions and cooling channels addresses overheating and depth control issues, ensuring efficient and precise quenching with maintained mechanical strength.
JP7887177B2Active Publication Date: 2026-07-09TKE CO LTD(JP)
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TKE CO LTD(JP)
- Filing Date
- 2023-04-28
- Publication Date
- 2026-07-09
Smart Images
Figure 0007887177000001 
Figure 0007887177000002 
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Abstract
To provide a heating coil capable of efficiently hardening a workpiece in a short time, effectively preventing the workpiece from being overheated, and easily controlling the depth of a hardened layer formed by hardening the workpiece.SOLUTION: A heating coil 1 is integrally formed using a molding method that repeats laying, melting, solidifying, and laminating powder made of a conductive material on the basis of three-dimensional data, and includes grounding portions 2a, 2b that abut against electrodes, supporting portions 3a, 3b arranged so as to be perpendicular to the grounding portions 2a, 2b, respectively, and a heating portion 4 provided so as to connect the tips of the supporting portions 3a, 3b. The heating portion 4 also includes an intermediate heating portion 14 that causes a supplied high-frequency current to flow in a first direction, and a lower heating portion 15 that causes the supplied high-frequency current to flow in a second direction opposite to the first direction.SELECTED DRAWING: Figure 1
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