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Basic Knowledge of Surface Treatment

ContentsList

  • Basic Knowledge of Surface Treatment
  • Plating preprocessing
  • Plating
  • Conversion Treatment
  • Conversion Treatment
  • Conversion Treatment
  • Conversion Treatment
  • Resin Plating
  • Technology to Improve Cr Throwing Ability
  • Our techinical skill

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Products of 20% improved Chromium throwing ability.

Our 20%-Improved Chrome Covering Power

With the existing Plating on Plastics (POP) technology, the chrome covering power is insufficient for parts with recessed areas that require weatherability, creating a corrosion concern. This means that the unplated areas need to be painted, resulting in high cost and design restrictions.

Depth of Cr throwing ability

Comparison Depth of Cr throwing ability円筒図形

Test Results from Actual Production Line

■Evaluation of Grill with Fog Lamp Hole

Condition Total Amps (A)  Time (min) Cr Thickness (μ) Covering Power (mm) Improved by (%) High Current Area Defects
Original 2400 3.5 0.33 9.0 ＊ 0/9
Adjusted 1400 3.5 0.36 11.5 28％　UP 0/9
Excess Cr 1800 3.5 0.41 15.0 67％　UP 9/9

Yuken achieved a 28% improvement in chrome covering power.
*Burns (excessive Cr without brightness) occurred under the "Excess Cr" condition.

Applications of Our Advanced Cr Covering Power

3D products

Lamp Bezel

Lamp bezel

Lamp Edge

Lamp parts

Miniturising patterns

Grill

Grill

Sleeve

Sleep

Complicated patterns

Faucet Handle

Handle

Gaming Parts (Added Pattern)

Amusement (Adding pattern)