Welding is a common method of connecting metal materials, but internal stress may be generated during the welding process, leading to deformation, cracking, and other problems of the workpiece, affecting its service life and safety. To address this issue,Welding stress relief equipmentAs a result, it has become a powerful tool for post weld processing. Equipment is used to treat workpieces through heating or vibration after welding is completed, in order to control or eliminate internal stress. Generally speaking, equipment mainly adopts the following two principles:

　　

1. Heat treatment principle: The equipment heats the workpiece to a certain temperature, then slowly cools it down to control or eliminate internal stress. This principle is generally applicable to large thick plate structures and precision components.

　　

2. Vibration processing principle: The equipment changes the stress state inside the workpiece through vibration, achieving the goal of controlling or eliminating internal stress. This principle applies to small structures and thin plate structures.

　　

According to different principles and functions, there are several types of welding stress relief equipment:

　　

1. Heat treatment equipment: including annealing furnaces, heating plates, electric furnaces, etc., mainly used to control or eliminate internal stress of welded workpieces.

　　

2. Vibration processing equipment: including vibration machines, ultrasonic vibrators, etc., which control or eliminate internal stress of welded workpieces through vibration action.

　　

3. Photon processing equipment: including laser processing equipment, laser shock equipment, etc., mainly used for welding stress relief of precision components.

　　

4. Electrolytic equipment: including electrolytic polishing, electroplating, etc., mainly used for post weld stress relief of large structures.

　　

Welding stress relief equipment is widely used in various fields of welding post-processing, with specific application scenarios as follows:

　　

1. Pressure vessel manufacturing: The equipment can perform annealing heat treatment on pressure vessels to control or eliminate internal stress, thereby improving the safety and service life of the vessels.

　　

2. Railway track maintenance: The equipment can perform vibration treatment on track welding to reduce post welding stress and improve the service life of railway tracks.

　　

3. Spacecraft manufacturing: The equipment can perform ultrasonic vibration treatment on the thin plate structure of spacecraft to avoid deformation and cracks caused by welding stress, ensuring the safety of spacecraft.

　　

4. Bridge construction: The equipment can perform heating annealing treatment on the welding joints of the bridge to avoid deformation and cracking caused by welding stress, and improve the service life of the bridge.

　　

Welding stress relief equipment is an important post weld treatment tool that can effectively control or eliminate internal stresses in welded workpieces, ensuring their safety and service life. In the future, with the development of science and technology, equipment will continue to be optimized and upgraded, making greater contributions to the development of the welding industry.