ASTM B117 Neutral Salt Fog Endurance: PVD Titanium vs Galvanic Chrome
Technical comparison of ASTM B117 salt fog endurance: evaluating 240h electroplated Chrome against 1000h+ vacuum PVD titanium coatings.
materials-finishes
Materials & Surface Treatments
材料与表面处理工艺
Solid extruded H59/H62 brass metallurgy, Zamak zinc alloy comparisons, PVD coatings, Satin Nickel, Matte Black, and ASTM B117 salt spray ratings.
Sub-Critical Thermal Annealing (280°C to 300°C) for Extruded Brass Housings
Metallurgical guide on thermal stress-relief annealing (280°C) for extruded brass cylinder bodies to eliminate residual stresses and seasonal cracking.
Autocatalytic Ni-PTFE Composite Deposition for Extreme Low-Friction Plugs
Technical analysis of Ni-PTFE composite electroless plating, delivering 0.08 dry friction and 450 HV hardness for unlubricated cleanroom locks.
High-Phosphorus Chemical Nickel Barrier Coatings (ENP 12%) for H2S Gas
Engineering guide on high-phosphorus (10%-12% P) chemical nickel plating for lock cylinders exposed to H2S hydrogen sulfide gas.
Triple-Layer Galvanic Plating (Cu-Ni-Cr) on Solid Extruded Brass Bodies
Technical breakdown of triple-layer galvanic plating (Copper + Nickel + Hard Chrome) on solid brass cylinders for coastal luxury villas.
Vacuum Arc TiCN vs TiAlN Ceramic Coatings on Brass Lock Components
Comparative analysis of TiCN (Charcoal Grey) and TiAlN (Dark Bronze) PVD ceramic coatings, evaluating oxidation thresholds and hardness.
Architectural Satin Nickel (US15 / BHMA 619) Finishing Specifications
Process guide on Satin Nickel (US15 / BHMA 619) architectural lock finishes, detailing semi-bright nickel leveling and directional satin wheeling.
Cathodic E-Coat Matte Black (RAL 9005) with 3H Scratch Hardness
Technical specifications for cathodic electro-deposition (E-coat) in Matte Black (RAL 9005), guaranteeing 100% sharp-edge corrosion coverage.
Molybdenum Alloying in SUS316 Stainless Steel Pin Chambers (PREN >= 24)
Metallurgical comparison of SUS304 and SUS316 stainless steel lock components under ASTM B117 neutral salt spray testing.
Lead Dispersion Microstructure in CW617N Architectural Extruded Brass
Metallurgical analysis of CW617N extruded architectural brass, evaluating microscopic lead globule dispersion and pin broaching chip breaking.
Lead-Free Eco Brass CW724R Silicon Particle Morphology and Cutter Life
Engineering breakdown of CW724R silicon-phosphorus lead-free brass, detailing carbide cutter wear and compliance with RoHS/REACH.
CuNi18Zn20 Commercial Key Blanks: 720 MPa Flexural Torsional Strength
Technical analysis of 18% nickel-silver key blank alloys (CuNi18Zn20), evaluating bitting notch retention and flexural torsional strength.
Request Quote & Technical Drawings for Materials & Surface Treatments
Direct factory engineering support for 材料与表面处理工艺. Custom cam offsets, finishes, and master key hierarchies supported.