Method of manufacturing composite between metal terminal and resin
The method improves airtightness in metal-resin composites by using extrudable compression bars to compress and adhere resin to the metal terminal, addressing thermal expansion-induced gaps.
JP2025137306APending Publication Date: 2025-09-19MUTSUKI ELECTRIC CO LTD
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Patent Information
- Application Number
- JP2024050478
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-09-19
AI Technical Summary
Technical Problem
Existing methods for insert-molded metal-resin composites face issues with airtightness due to thermal expansion differences between metal and resin, leading to gaps and air leakage, necessitating grooves in the metal terminal.
Method used
A method using a molding device with extrudable compression bars that compress the resin around the metal terminal before solidification, ensuring tight adhesion by retracting the bars after resin solidification.
Benefits of technology
The method enhances airtightness by ensuring the metal and resin remain closely adhered, minimizing gaps due to thermal cycling.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a method of manufacturing a composite between metal terminals and a resin, that brings the metal terminals and the resin into close contact to enhance airtightness within the insert-molded composite between the metal terminals and the resin.SOLUTION: The present invention pertains to a method of manufacturing a composite between metal terminals and a resin, which uses a molding apparatus A installed with freely thrust out compression bars 4 within each of an upper die 10A and a lower die 10B of a molding die 10 in which metal terminals 2 are placed and into which a resin 3 is injected, and thrusts out the compression bars 4 before a resin 3 injected into the molding die 10 is solidified, to compress the resin 3 within an outer peripheral portion 6 of the metal terminals 2, thereafter, pulls in the compression bars 4 to release the compression, causing the resin 3 to be solidified in the molding die 10, thus to insert-mold the metal terminals 2.SELECTED DRAWING: Figure 1
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