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What are the advantages of torque angle bolt tightening technology?

April 15, 2024

The torque angle bolt tightening method is a widely used tightening technique in the industrial field, especially in situations where high-precision and high reliability connections are required. This method combines torque control and angle control, ensuring that the bolt reaches the expected pre tightening force by controlling the torque and rotation angle during the bolt tightening process, thus providing many advantages.


Firstly, torque and angle bolt tightening can achieve precise pre tightening force control. In bolted connections, the magnitude of preload is crucial for the reliability and sealing of the connection. By dual control of torque and angle, the pre tightening force of bolts can be accurately controlled to avoid problems caused by insufficient or excessive pre tightening force. This method ensures that each bolt reaches the same pre tightening force, thereby improving the uniformity and consistency of the connection.

Secondly, tightening bolts with torque and angle can reduce the risk of bolt loosening. Loose bolts are one of the common faults in many industrial equipment, which may lead to performance degradation and even safety accidents. By precise control of torque and angle, it is possible to ensure that the bolt reaches sufficient pre tightening force during the tightening process, thereby reducing the risk of loosening. In addition, this method can also send out signals in a timely manner when bolts are loose, making it easier to detect and handle problems in a timely manner.

Thirdly, torque and angle bolt tightening can improve the fatigue life of the connection. Under the action of alternating loads, bolted connections may experience loosening and fatigue failure. By precise pre tightening force control, the stress amplitude of bolted connections under alternating loads can be reduced, thereby extending the fatigue life of the connections. In addition, the torque angle tightening method can also reduce residual stress in the connection, further improving the reliability and durability of the connection.

In addition, torque angle bolt tightening has the advantages of easy operation, high efficiency, and wide applicability. This method can achieve automated operations through specialized tightening tools, reducing manual intervention and errors, and improving production efficiency. Meanwhile, this method is suitable for bolt connections of various specifications and materials, and has a wide range of applications.

However, the torque angle bolt tightening method also has some limitations. For example, it requires precise measurement and control equipment, and requires high skills from operators. In addition, in certain special circumstances, such as high temperature, high pressure, or corrosive environments, the control of torque and angle may be subject to certain limitations.

In summary, the torque angle bolt tightening method has the advantages of precise pre tightening force control, reduced loosening risk, improved fatigue life, and simple operation. In the industrial field, it is widely used in aerospace, automotive manufacturing, petrochemical, mechanical equipment and other fields, providing strong guarantees for the safe and reliable operation of various equipment and structures. With the continuous advancement of technology and the expansion of application areas, the torque angle bolt tightening method will continue to play an important role in promoting the development and progress of the industrial field.