Door Stopper Fastener Loosening
Solve cyclic loading failures with Grade 8.8 bolts, nylon locknuts & ISO 10964 adhesives. Achieve 10,000+ vibration cycles (ASTM D999) and 500hr salt spray resistance. 400% lifespan extension proven.
Surface Treatment for Door Hardware: Electroplating vs. Immersion Plating
Compare door hardware finishes: Immersion plating offers 50+ metallic options at 40-60% lower cost but requires ISO 2812-3 drying. PVD/electroplating provides 35% higher corrosion resistance. Learn ASTM G85 & IPC-610H compliance.
Surface Coating Process Guidelines
1, Surface Preparation Requirements
PVD Coating:
Requires Class-A surface finishing (Ra ≤ 0.2μm per ISO 1302)
Demands precise tooling marks alignment (≤0.05mm deviation)
Powder Coating:
Tolerates surface roughness up to Ra 3.2μm (ASME B46.1)
Sandblasting at 80-100 grit suffices for adhesion enhancement
Surface Coating Process Specifications
1. Stain Resistance Performance
PVD Coating:
Shows fingerprint susceptibility (＞85% visible mark retention rate in ASTM F1319 testing)
PVD + Lacquer Composite:
Achieves fingerprint-resistant certification (ISO 4618 Class B standards) through nano-scale surface encapsulation
Analysis of Hydrographic Printing Application in Door Hardware Surface Finishing
Analysis of Hydrographic Printing Application in Door Hardware Surface Finishing
I. Process Advantages
1. Exceptional Process Adaptability
Complete pattern coverage on complex geometries
Customizable designs with client-driven pattern creation
2. Cost Efficiency
Industry-leading affordability for customized finishes
80%+ mold cost reduction for new product development