Amorphous Alloy Magnetic Core Internal Temperature Measurement
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Solution Overview
Problem
Conventional amorphous alloy magnetic cores face difficulties in optimizing heat treatment conditions due to inconsistencies between internal and surface temperature profiles during heat treatment, leading to cumbersome adjustments based on obtained magnetic properties.
Innovation Solution
An amorphous alloy magnetic core with a strategically positioned hole for inserting a temperature measuring unit, allowing for accurate internal temperature measurement and easy optimization of heat treatment conditions, along with a resin layer to block the hole and prevent powder scattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heat treatment is performed on amorphous alloy magnetic core, then magnetic properties are improved, but internal temperature distribution becomes inconsistent with surface temperature
Solution Approach 1:
A thermocouple is introduced as an intermediary measurement tool inserted through a hole in the magnetic core to directly measure internal temperature. This mediator enables accurate temperature monitoring inside the core without relying on surface temperature readings, resolving the inconsistency between internal and surface temperature profiles during heat treatment.
Solution Approach 2:
The magnetic core is segmented by creating a hole that allows insertion of the thermocouple. This segmentation provides direct access to the internal temperature field, enabling separate and independent measurement of internal temperature from surface temperature, thus resolving the measurement inconsistency.
2Reliability
If heat treatment condition is optimized by trial and error, then magnetic properties can be improved, but manufacturing time and complexity increase
Solution Approach 1:
A feedback mechanism is established by inserting a thermocouple through a hole in the magnetic core to provide real-time internal temperature data during heat treatment. This feedback enables precise control and optimization of heat treatment conditions without requiring repeated trial-and-error adjustments, significantly improving manufacturing efficiency while ensuring consistent magnetic properties.
3Measurement precision
If hole is created in magnetic core for temperature measurement, then internal temperature can be measured accurately, but magnetic core structure is compromised
Solution Approach 1:
The hole for thermocouple insertion is created at a specific location (one end face of the layered body) rather than throughout the entire core. This localized modification minimizes the impact on overall magnetic core integrity while enabling accurate internal temperature measurement where it is most needed for heat treatment monitoring.
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 efficient optimization of heat treatment conditions, ensuring consistent magnetic properties across cores of varying sizes and facilitating precise heat treatment in a shared furnace, while minimizing deformation and maintaining magnetic core integrity.
Implementation Method 1
a hole for inserting a temperature measuring unit
Implementation Method 2
a resin layer to block the hole and prevent powder scattering
Data Source
AI summary
An amorphous alloy magnetic core including a layered body in which amorphous alloy thin strips are layered one on another, the layered body having one end face and another end face in a width direction of the amorphous alloy thin strips, an inner peripheral surface and an outer peripheral surface orthogonal to a layering direction of the amorphous alloy thin strips, and a hole passing through from a part of the one end face as a starting point, the width direction corresponding to a depth direction of the hole.