Technology Center - Solar Fastener R&D | FASTKING

According to outdoor PV working conditions, this guide covers applicable scenarios of SUS304/SUS316 stainless steel, Dacromet carbon steel and insulated nylon fasteners, including salt spray standards, anti-galling solutions, torque values and power station maintenance tips.

Fully standardize full-set fixture, load parameters and judgment criteria for artificial seawater immersion, alternating salt spray and accelerated chloride ion aging test of M12-M20 2507 duplex steel bolts for offshore PV, distinguish two test gradients for inland onshore and coastal offshore projects. Summarize three typical failure sections under seawater corrosion and provide optimization plan

Hot-dip continuous coating of steel strip, post-treatment passivation and coating thickness test procedures are cited from GB/T33430 national standard for metal zinc-aluminum-magnesium alloy coating. Target M10-M16 bolt base material for distributed and coastal PV brackets, distinguish control parameters of two coating thicknesses: 85μm and 100μm. Summarize rectification plans for three mass produ

This article compares PV dedicated fasteners with ordinary screws, explains differences in materials, structural design and surface technology, guiding material selection for PV projects and extending service life of power stations.

Analyze hydrogen embrittlement fracture mechanism of galvanized 10.9/12.9 grade PV bolts, grade hydrogen risk, provide on-site rapid detection method, standardize baking dehydrogenation construction process for photovoltaic construction sites.

Establish coating life and maintenance cost table for four types of photovoltaic power stations, define bolt surface treatment selection standard, formulate construction protection rules for outdoor photovoltaic fastener installation.

Compare four anti-corrosion surface crafts of solar fasteners for different photovoltaic working environments.

Aiming at outdoor solar power station environments such as sunshine, rain, salt fog and acid-base corrosion, this article explains the aging mechanism of fastener coatings, and provides long-term anti-corrosion solutions from selection, construction and maintenance to ensure 25-year stable operation.

Collect salt spray test data of hot-dip galvanized, mechanical galvanized, Dacromet and zinc-nickel coatings, guide part selection for inland, industrial and coastal photovoltaic projects.

Sort out the usage standard, factory inspection items, on-site installation rules and acceptance key points of PV fasteners, help PV projects control product quality and construction standards.