Current status of automatic welding
Current status
Automatic welding equipment for domestic oil and gas pipeline industry can be used for pipeline flat welding, vertical welding, horizontal welding, overhead welding, all-position 5G welding, fill welding and cover welding, suitable for welding processes such as GMAW/FCAW-GS. The configuration of different tracks can also meet the needs of all-position welding of other workpieces. For flaw detection, manual argon arc bottom welding is required. The working principle is that the pipe is fixed, the welding robot is adsorbed on the pipe (or on the track) and automatically crawls and welds. It is operated by a wireless remote control. It is protected by carbon dioxide or mixed gas (80% argon + 20% carbon dioxide). The welding wire can be solid wire or flux-cored wire.
Many pipeline welding projects in China have construction characteristics such as "long distance", "large pipe diameter", and "pipe wall thickness". Relying on domestic electrode arc welding alone, the labor intensity of workers is high, the production efficiency is low, and the construction process is very slow. Slow. With the rapid introduction of the welding process method of pipeline all-position automatic welding in the oil and gas pipeline installation industry in order to solve the problem of welding quality consistency, the industry has a preliminary understanding of pipeline all-position automatic welding equipment and process methods. The understanding of all-position pipeline automatic welding is also becoming clearer.
In addition to the good consistency of welding quality, considerable progress has been made in the training time for welders, reduced labor intensity, and real-time recording of welding process data. The quality of welding joints has changed from manual welding. The situation of relying on the technical level and labor status of the welder to automatically weld the pipeline to the full position of the pipeline increasingly depends on the capabilities of the equipment is gradually taking shape. The welding automation industry is an emerging industry and is currently in the initial stage of development. Although since the 1990s, with the further maturity of the socialist market economy, my country's welding industry has made considerable progress, but welding automation as an emerging industry is still in its infancy.
At present, my country is still dominated by traditional manual welding. The future development potential is huge and the prospects are broad. With the increasing maturity of digital technology, digital welding machines and digital control technology, which represent automated welding technology, are already available and have steadily entered the market. Large-scale national basic projects such as the Three Gorges Project, West-East Gas Pipeline Project, and ship engineering have strongly promoted the development and progress of advanced welding technology, especially welding automation technology. my country's welding industry is gradually moving towards "high efficiency, automation, and intelligence". The original intention of developing and producing automatic welding machines is to reduce the labor intensity of welders and improve welding efficiency. But the welding technology has developed to this day, and it has not yet developed to the level of unmanned welding construction. Fully automatic welding machines still require our master welders to be on the construction site to adjust the welding parameters and monitor the welding status in real time according to the construction progress and conditions. Fully automatic welding machines cannot completely replace welders.
At present, my country's welding industry regards the realization of the mechanization and automation of the welding process as a strategic goal. Welding automation equipment has high manufacturing technology content, usually integrating welding technology, automatic control, precision machinery design and manufacturing and other technologies. With the increasing development and wide application of industrial automation, intelligence, digitalization and other technologies, welding automation is being transformed from a single machine Welding automation equipment is developing towards welding automation production lines and digital welding workshops. The focus of the development of my country's manufacturing industry is to use advanced automation, intelligence, and digital technology to achieve industrial transformation and upgrading and the development of new industries, providing a broad development space for the welding automation industry.
As we all know, the fish-scale weld is considered to be the most advanced welding technology in the world. Because its forming effect is like fish-scale, it is called fish-scale. The weld is beautiful and beautiful, which is difficult to achieve by manual welding. The following figure compares the automatic welding effect of Yixin company HW-ZD-201 with manual welding:
Post time: Sep-16-2021