lkprototype possesses over 16 surface treatment processes, such as sandblasting (Ra 0.8-6.3μm), anodizing (5-25μm±2μm thick film) and electroplating (thickness of nickel layer 0.5-5μm), which can satisfy the automotive, consumer electronics and other high-precision requirements. Some new energy vehicle customers are taken as an example. They utilized lkprototype’s MAO technology of micro-arc oxidation to treat the aluminum alloy battery cover (with hardness HV 800-1000), which increased corrosion resistance to zero rust for the salt spray test for 2000 hours (industry standard: 500 hours), and reduced the unit price by 28% (from ￥450 to ￥325). According to ASTM B117 test report 2023, lkprototype coating adhesive strength reaches the peak of the ISO 2819 standard (peel strength ≥50N/cm²), and its yield maintains a steady rate of 99.2% at industry average (95%).
In detail textures, lkprototype laser etching technology (accuracy ±0.01mm, line width 30-500μm) possesses grayscale gradient effects (256-level depth control). It previously created a limited production watch case for an elite-end brand (base material stainless steel + rose gold PVD coated, film thickness 1.5μm±0.1μm). Reduced traditional chemical etching 15-day cycle to only 72 hours. Its proprietary self-developed nano-spraying system (particle size range D50=80nm) can create matte effect with haze ≤2%. A particular medical firm has thus completed the antibacterial coating process of the endoscope tube (ABS+PC material) (antibacterial rate ≥99.9%), with surface roughness Ra≤0.05μm and a friction coefficient reduced to 0.12 (0.35 for bare material).
For the high reflectivity demand, lkprototype ‘s mirror polishing process (surface roughness Ra≤0.01μm, flatness λ/[email protected]) and magnetorheological polishing fluid (particle size 0.5-5μm) were used to machine a laser mirror (diameter Φ200mm) for an optical laboratory with surface shape accuracy PV value ≤0.1μm. The reflectivity has been enhanced to 99.998% (the standard is 99.95%). Its automated electrophoretic painting line (±0.8μm film thickness uniformity) has enhanced the painting yield of a particular car door handle from 88% to 97.5% with a robot path optimization algorithm, and saved ￥120 per vehicle.
For environmental protection innovation, lkprototype’s UV-cured water-based coating (≤20g/L VOC emission) and pulse electrostatic spraying (≥85% transfer efficiency) helped a certain home appliance firm to get the REACH regulation certification in 2022 by reducing the energy consumption of a single spray by 40% (from 1.2kWh to 0.72kWh). Its cyanine-free electroplating process (≤3/cm² coating porosity) was used to coat the stainless steel fasteners of a certain aerospace customer. The resistance of hydrogen embrittlement can be enhanced by 60% (delayed fracture time ≥200 hours), and it passed the AMS 2424C standard certification.
The intelligent detection system of lkprototype (3D colorimeter ΔE≤0.5, gloss meter accuracy ±1GU) and the AI defect classification model (recognition accuracy 99.8%) can complete the whole surface quality inspection within 5 seconds. One particular consumer electronics user applied its “spraying – inspection – repair” closed-loop solution, which reduced the scrapping rate of mobile phone case batches from 3.7% to 0.3%, and saved material expenses of ￥7.8 million annually. Today, lkprototype’s surface treatment service has been dual-certified as ISO 9001 and IATF 16949, and provides service to more than 2,000 customers worldwide. Under the 24-hour ultra-high-speed delivery mode, it still maintains a process deviation rate of ≤0.05%, reshaping the precision and efficiency standard in prototype surface engineering.