Heat treatment Technology in High Strength Anchor Bolt Production

Using highs strength roud bar as raw material, usualy the material is 42crmo, we can get round bar of high strength and better mechanical property with proper heat treatment technology, which Longteng has been used to produce wind turbine foundation bolt for decades
Anchor Bolt Heat treatment

Ultimate Performance of Wind Turbine Anchor Bolt

Accelerating the development of heat treatment has become China’s national strategy. In the context of major changes of international environment, starting from current situation and existing problems of heat treatment in China, necessity, urgency and importance of accelerating the development of anchor bolt heat treatment have been highlighted in front of us.

“Heat treatment” is a technique that uses heating and cooling methods to control phase transitions, microstructures, residual stress fields, and to impart extreme properties to materials and high strength bolts for serviceability. It is both a theoretically strong science and a very practical type of technology. The practicality is that advanced heat treatment process is ever-changing with materials and high-strength wind anchor bolts, and it is constantly innovating, continuously developing. It can be seen that no material can leave the heat treatment, and no high strength bolts do not rely on heat treatment. It is important to point out that heat treatment is one of the only two techniques that today gives the ultimate performance of materials of high-strength bolts.

Heat treatment differs from blanking technology and cutting technology. Cold-formed blanks, forged blanks, cast blanks and welded blanks can produce blanks of a certain shape and size, which are conspicuous. The cutting process can produce a variety of precise and beautiful high-precision bolts, which are extremely eye-opening. The heat treatment technology is “internal medicine” of wind foundation anchor bolt manufacturing.

Development of High-Strength Anchor Bolts - Heat-treatment

Advanced manufacturing technology is the technical support for development of advanced high-strength bolts. Heat treatment technology is an important part of advanced manufacturing technology and plays an important role in high-strength anchor bolts and high-end mechanical equipment. Morden Steel mills often recognize the importance of “ingredients” and important role and status of heat treatment. Using highs strength roud bar as raw material, usualy the material is 42crmo, we can get round bar of high strength and better mechanical property with proper heat treatment technology, which Longteng has been used to produce wind turbine foundation bolt for decades, heat treatment is the key to success.

Heat treatment is directly related to improving material power, and it can’t be done without heat treatment innovation. The heat treatment technology in China has accelerated the development of material power, so is the heat treatment technology. It is not known that the lack of attention to heat treatment, lack of innovation and control of the innovative development of advanced materials, no heat treatment innovation, there is no advanced materials.

Facing “Industry 4.0” and “Third Industrial Revolution”, intelligent, green, lightweight and heat treatment technologies play an important role in the development of high-strength bolt manufacturing. For development, we should choose the process that plays a fundamental and breakthrough role in the development of the fastener industry as the key to accelerate development, and attach importance to integrated innovation is the key to improve the core competence of fastener enterprises. The development of heat treatment will be more personalized.

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