Inspection and Validation

Inspection routines for dimensions, surfaces, plating, reliability checks, and final release.

Checkpoints

  1. Requirement

  2. Inspection

  3. Record

  4. Release

Inspection follows the agreed requirement, the measured result, and the release record.

Inspection checklist

  • Drawing number and version confirmed
  • Material checked against requirement
  • Lot number connected to inspection record
  • Key dimensions measured against criterion
  • Surface condition reviewed before release
  • Plating thickness checked when required
  • Adhesion checked when required
  • Salt spray or oxidation result checked when required
  • Inspection basis identified
  • Final result reviewed before shipment

Sample record

INSPECTION CERTIFICATE
Example only
P/O No. Customer order DWG No. Customer drawing Date YYYY.MM.DD
Description Step metal lid Lot No. Lot record Material 4J42
Quantity Released quantity according to order and inspection record
Content Criterion 1 2 3 4 5 6
Dimension / plating Length A 52.3 ± 0.1            
Length B 47.6 ± 0.1            
Width A 43.5 ± 0.1            
Width B 37.7 ± 0.1            
Step thickness 0.10 -0.01 / +0.04            
Total thickness 0.25 ± 0.1            
Plating thickness 6-12 µm            
Plating process Electroless nickel Appearance No visible scratches, rust spots, pits, or stains.
Nickel content 90 ± 2% Adhesion No peeling after repeated 45° bending check.
Salt spray test Temperature: 35°C ± 3°C Oxidation No rust spots
Salinity: 5% NaCl
Time: 24H
Result Inspection basis SJ-04-002-2023 Outgoing Inspection Procedure for Metal Lids

Release support

Inspection records support lot release, customer review, and shipment preparation.

  • Inspection reports can be prepared when required.
  • Released lots remain connected to drawing, material, quantity, and inspection basis.
  • Final outgoing inspection is completed before packing and shipment.