Development Trends of Fastener Surface Treatment Technology

Fastener surface treatment technology is showing the following development trends:

Environmental Protection:

• Cleaner Production: Employing green chemical processes, such as laser surface modification, to reduce or avoid the use of toxic and harmful chemical reagents, and lowering wastewater, waste gas, and waste residue emissions.
• Resource Recycling: Improving the recycling rate of coating materials and developing recyclable surface treatment technologies to reduce resource consumption.

High Performance:

• Resistance to Extreme Environments: Developing coatings or treatment technologies that can adapt to extreme working conditions such as high temperature, low temperature, strong corrosion, and high radiation, such as for fastener surface treatment in aerospace and deep-sea equipment.
• Multifunctional Integration: Enabling fastener surface treatment to possess multiple functions, such as good corrosion resistance, wear resistance, conductivity, and self-lubrication, to meet complex application requirements. Nanocomposite coating technology can achieve multifunctional integration by adding nanoparticles with different properties.

Precision and Localization:

• High-Precision Processing: For miniaturized and precision fasteners, such as micro-screws in electronic devices, surface treatment technologies with no dimensional deformation and high precision, such as ion implantation, will be more widely used.
• Local Performance Optimization: Utilizing technologies such as laser surface modification, precise treatment of specific parts of fasteners can be achieved. Without affecting overall performance, the performance of key components can be improved in a targeted manner, such as localized strengthening of the threaded parts of the fasteners at the root of aero-engine turbine blades.

Intelligentization and Automation 3:

• Production Process Control: Leveraging sensors, IoT, and AI technologies, the surface treatment process can be monitored and optimized in real time, achieving automated parameter adjustment and quality control, improving production efficiency and product consistency.
• Intelligent Quality Inspection: Employing intelligent inspection equipment and algorithms, such as machine vision-based surface defect detection systems, can quickly and accurately detect quality problems on fastener surfaces and promptly identify defective products.

Multi-Process Integration:

Single surface treatment processes are insufficient to meet complex requirements; combining multiple processes will become a trend. For example, electroplating or chemical plating can be performed first to form a base coating, followed by ion implantation to optimize surface performance; or laser surface modification can be combined with nanocomposite plating to leverage their respective advantages and achieve a surface treatment effect with superior overall performance.