Analysis of Core Technologies for Welding and Assembly of Dalian Wind Power Processing: Key Process Points and Quality Control Strategies

In the manufacturing of wind power equipment, welding technology directly affects the performance and service life of wind turbines. Mastering the key process points and implementing strict quality control is the key to ensuring the safe and stable operation of wind power equipment.

The key points of the welding process for Dalian wind power are first reflected in the adaptation of materials and welding methods. Wind power components often use high-strength low-alloy steel and aluminum alloy to reduce weight and enhance strength. For example, submerged arc welding technology is often used for tower welding, which ensures the welding quality of thick walled structures due to its deep penetration and high welding efficiency; The welding of the main beam of the blade requires laser welding or friction stir welding, taking advantage of its small heat affected zone and low deformation to avoid the aerodynamic performance degradation of the blade due to welding stress. In addition, the welding sequence and interlayer temperature of the flange connection must be strictly controlled to prevent welding cracks and ensure the strength of the mechanical connection.

 

The quality control strategy for wind power welding in Dalian runs through the entire welding process. Before welding, strict inspection of the base metal is required to ensure the absence of defects such as porosity and slag inclusion, and the rationality of welding parameters is verified through simulated process qualification (PQR). During the welding process, a real-time monitoring system is used to track current, voltage, and weld temperature to prevent welding defects from occurring; At the same time, qualification certification and regular training should be provided to welders to ensure standardized operation. Post weld testing adopts non-destructive testing techniques such as ultrasonic testing (UT) and radiographic testing (RT) to conduct 100% inspection of key welds and eliminate internal defects; And through mechanical performance testing, verify whether the strength and toughness of the welded joint meet the standards.

By precise control and strict quality control of the welding process for wind power in Dalian, the reliability and durability of wind power equipment can be effectively improved, providing a solid guarantee for the efficient development and utilization of clean energy.