The development trends of 12.9-grade screw materials for high-strength fasteners are as follows:
New metal materials such as titanium alloys, aluminum alloys, and stainless steels will be more widely used to meet higher requirements for fastener strength, corrosion resistance, and fatigue life. For example, in the aerospace field, titanium alloy fasteners can reduce weight while ensuring high strength.
Composite materials and nanomaterials have become research hotspots:
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Composite materials offer advantages such as high specific strength and corrosion resistance.
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Nanomaterials can be used for surface nano-coating treatment to improve properties like corrosion resistance and wear resistance.
Traditional manufacturing processes including cold heading, hot heading, and extrusion are continuously improved to enhance production efficiency and product quality. For instance, more advanced mold design and processing technologies are adopted to improve forming precision.
New manufacturing processes such as CNC machining, laser processing, and friction welding are gradually applied in production:
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They enable more complex shape processing, higher dimensional accuracy, and better connection performance.
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They also help reduce costs and increase production capacity.
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3D printing technology is also expected to play a role in the production of small-batch, customized high-strength fasteners.
More types of high-strength fasteners are developed to address the specific needs of different industries. Examples include fasteners dedicated to automotive engines and high-strength bolts for wind turbine blades, with optimized designs in terms of shape, size, and performance.
With the diversification of market demand, personalized customized products are provided according to customers’ specific requirements, such as special surface treatment, unique head designs, or custom markings.
Recyclable materials and low-carbon manufacturing processes are adopted to reduce energy consumption and waste emissions during production. For example, heat treatment processes are optimized to reduce energy consumption and harmful gas emissions.
Through optimized design and improved production processes, the service life of high-strength fasteners is extended. At the same time, efforts are made to facilitate recycling and reuse, reducing environmental pressure.
Technologies such as the Internet of Things (IoT), big data, and artificial intelligence (AI) are used to realize intelligent monitoring and management of the production process:
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This enhances production efficiency, product quality stability, and production flexibility.
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For example, smart sensors are used to monitor the operating status of production equipment in real time, enabling fault early warning and automatic adjustment.
High-strength fasteners with intelligent functions are developed. For example, bolts equipped with sensors can real-time monitor parameters such as stress and temperature at the connection point, providing data support for equipment maintenance and safe operation.
The formulation and promotion of international standards (e.g., ISO, ASTM) will be strengthened:
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This helps improve the technical level and market competitiveness of high-strength fasteners.
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It also promotes international trade and exchanges.
China actively participates in and promotes the formulation and improvement of high-strength fastener standards, establishing a standard system aligned with international standards:
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This enhances China’s international status in this field.
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It also ensures product quality and safety.
