Metal foil for spring components, manufacturing method of metal foil for spring components, manufacturing method of spring components, and spring components.
TW202635940APending Publication Date: 2026-09-01TOPPAN HOLDINGS INC
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Patent Information
- Application Number
- TW114143461
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-11-07
- Filing Date
- 2025-11-07
- Publication Date
- 2026-09-01
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Figure TWG2TA001074629_001 
Figure TWG2TA001074629_002 
Figure TWG2TA001074629_003
Abstract
The elongation difference rate of the metal foil in the central region along the width direction is greater than the elongation difference rate of the first and second end regions along the width direction. The elongation difference rate decreases from the central region toward the first end region and from the central region toward the second end region. The maximum elongation difference rate in the central region is 30 × 10⁻⁵ or less. The maximum elongation difference rate in each of the first and second end regions is 10 × 10⁻⁵ or less.
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