Quality control in terminal crimping relies on strict appearance standards и accurate measurement methods to verify mechanical and electrical integrity.
Wire Stripping and Terminal Appearance Standards
A visually acceptable crimp should meet the following conditions:
Wire Stripping:
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Insulation should be cleanly removed
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Нет nicked or broken strands
Terminal Crimp Appearance:
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Conductor should be visible in the inspection window
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Insulation must be inside the barrel
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A flare should be clearly formed
Crimp Cross-Section (Slice) Requirements
Using a crimp slice analysis:
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Good crimp: Honeycomb structure visible, no gaps or misalignment
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Unqualified crimp: Uneven compression, foreign matter, or incorrect shape
Slices may be conditionally accepted if electrical performance meets minimum requirements.
Measurement Tools and Techniques
1. Crimp Height and Width:
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Measured using precision gauges
2. Pull (Tensile) Testing:
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Verifies mechanical strength under tension
3. Visual Inspection Guidelines:
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Lighting: Normal room light
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Magnification: 5x to 30x (optional)
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Distance: 30–45 cm
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Угол: 45° ±5°
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Scan Time: 5 ±2 seconds
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Sequence: Full rotation, front to back, clockwise
Why Appearance Standards Matter
Strict inspection standards ensure:
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Stable conductivity
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Durable crimps
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Product reliability in real-world use