Induction Coil Heating for Steel Plate Trim Edge Strain Relief
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Solution Overview
Problem
Existing steel plate processing methods that involve induction heating of the trim edge and its vicinity lead to unwanted deterioration of the steel plate.
Innovation Solution
A method that locally heats the trim edge of a steel plate using a non-contact heating coil configured to generate an induced electromotive force, with specific coil dimensions and positioning to ensure efficient and controlled heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heating coil is heated over a wider range to ensure adequate heating of the trim edge, then heating reliability is improved, but deterioration of the steel plate increases
Solution Approach 1:
The heating coil is designed with non-uniform winding density, having a first winding density in a first region and a second winding density in a second region, creating localized heating zones that match the specific thermal requirements of different trim edge areas while avoiding excessive heating of the steel plate body
Solution Approach 2:
The heating coil is divided into multiple winding regions with different winding densities, segmenting the heating function to provide targeted heating to specific areas of the trim edge rather than uniform heating across the entire coil area
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables localized heating of the trim edge to effectively remove residual strain while minimizing plate deterioration, improving heating efficiency and productivity.
Implementation Method 1
applying a current through the heating coil to cause an induced electromotive force on the steel plate
Implementation Method 2
heating an end face of a heating coil by disposing the heating coil in a non-contact manner along an end surface of a trim edge of the steel plate
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3A~3B
AI summary
To locally heat only a trim edge. A processing method includes: punching a steel plate; and heating an end face of a heating coil by disposing the heating coil in a non-contact manner along an end surface of a trim edge of the steel plate formed in the punching and perpendicular to a plate thickness direction of the steel plate and applying a current through the heating coil to cause an induced electromotive force on the steel plate. The heating coil is configured by winding a coil wire spirally at least one time.