Heavy industry is a company mainly engaged in mechanical manufacturing. Welding technology is an indispensable processing method for the manufacturing of our company's products and the basis for Product quality. The level of welding technology directly affects The quality and reliability of The company's products. In order to improve the welding technical ability of our welders, our company witnessed, skilled and skilled Volvo welding engineers to explain and guide our welders on November 19, 2011. Theoretical knowledge is the premise and foundation of practice and the first step to improve welding skills, so this training focuses on written knowledge. How to view welding assembly drawings and welding symbols. How to read the welding work instruction. Welder's code of practice. Three aspects extended in depth, detailed analysis. At present, heavy industry has included welding training in the long-term training plan. Will pay more attention to the importance of improving the welder's technical ability to provide comprehensive and effective training for welding workers.