Surface Treatment
Heat treatment, plating, anodizing, painting, polishing, sandblasting (via partner network)

Surface treatment is the final step for metal parts — impacting corrosion resistance, wear resistance, appearance, and function. Through our long-term professional surface-treatment partners, we provide a complete integrated service: a single point of contact at Weiyon coordinates the full workflow for you.
Typical projects include: aerospace parts hard-anodizing, semiconductor parts electropolishing and passivation, mechanism parts nickel plating, automotive parts powder coating, and gauge parts mirror polishing. Spec compliance with ASTM, JIS, RoHS, and other certifications is coordinated per customer requirement.
Equipment
- Heat treatment: quench / temper, carburizing / nitriding furnaces
- Electroplating: nickel, chrome, zinc, gold, silver
- Anodizing: clear, color, hard anodizing (aluminum)
- Painting: electrostatic powder coating, baked enamel
- Mechanical: polishing, mirror polish, sandblasting, hairline finish
Applicable Parts
- Improved corrosion resistance (outdoor, chemical, marine)
- Enhanced surface hardness and wear resistance
- Aesthetic / brand-consistency requirements
- Cleanliness requirements (semiconductor, medical, food)
- Electrical insulation or conductivity tuning
Compatible Materials
- Aluminum alloys (anodizing, hard anodizing, coatings)
- Steels (quench, temper, blackening, plating)
- Stainless steel (passivation, polishing, sandblasting)
- Copper alloys (polishing, gold / silver plating)
- Titanium alloys (anodizing, mirror polish)
Specs & Tolerances
- Plating thickness: per spec (typical 5 ~ 25 μm)
- Anodizing thickness: 5 ~ 50 μm (incl. hard anodizing)
- Color: per customer-specified RAL / Pantone codes
- Treatment certificates / SGS reports available
Industries this process commonly serves
Semiconductor Equipment Precision Parts Machining
40 years serving Taiwan's semiconductor industry — strict cleanliness, short lead times, long-term partnerships
Aerospace Precision Parts Machining
Difficult alloys, tight tolerances, lightweight structures — Weiyon's aerospace expertise
Medical Device Precision Parts Machining
Biocompatible materials, strict surface specs, full traceability — Weiyon's medical device machining
Automotive Precision Parts Machining
Volume stability, standards compliance, batch traceability — Weiyon's automotive parts machining
Automation Equipment Precision Parts Machining
Mechanism parts, joint mounts, grippers — Weiyon's automation parts machining
Aftermarket & Tuning Parts Machining
Exhaust, intake, chassis, engine bay — your precision partner for tuning brands and racing teams
Oil & Gas Precision Parts Machining
Valve internals, flanges, pump parts — precision machining for GCC and global oil & gas supply chains
Explore our complete machining capabilities
CNC Milling
Machining centers, CNC mills, gantry mills
CNC Turning
CNC lathes, automatic lathes, conventional lathes
Precision EDM
Wire-cut, sinker EDM, micro-hole EDM (via partner network)
Sheet Metal Fabrication
Laser cutting, turret punch, press, bending, rolling (via partner network)
Need a custom machining solution?
Reach out anytime by phone or online. Share your drawings, geometry, quantity, and material — we'll respond with the best solution within 1-2 business days.