The high-efficiency ultra-narrow groove welding system developed by JFE Steel received the 56th Japan Society for the Promotion of Machinery Chairman's Award from the Japan Society for the Promotion of Machinery. In order to meet the customer's request for further improvement of welding work efficiency, JFE Steel has developed a high efficiency ultra-narrow groove welding system that can significantly reduce the amount of welding. By significantly improving welding efficiency, it is possible to shorten the construction period and reduce construction costs, as well as reduce energy consumption and CO2 emissions.In order to improve welding efficiency, narrow groove welding that reduces the amount of welding by narrowing the groove provided between the base materials to be welded is effective, but spatter is generated and there was a problem that it was difficult to obtain a sound welded part due to insufficient penetration. With this developed technology, J-STAR Welding, which features ultra-low spatter, stable arc and deep penetration and optimization of the welding method and groove shape of the welded part, and By combining the control of the curvature of the weld wire, it is possible to obtain a healthy weld without welding defects even in an ultra-narrow groove that is even narrower than the narrow groove. By reducing the groove cross-sectional area to about one-third of the conventional one, it has become possible to reduce the welding amount to about one-third of the conventional oneWelding technology was established in collaboration with Nagai Seisakusho Co Ltd and Yamane Iron Works Construction Co Ltd. It has already been applied to Kumamoto Castle restoration and maintenance projects and office buildings in the Tokyo metropolitan area, contributing to a significant improvement in welding efficiency at construction sites.J-STAR Welding - J-STAR is an abbreviation for JFE Spray Transfer Arc. A carbon dioxide arc welding method that uses a welding wire to which an appropriate amount of Rare Earth Metal is added as an arc stabilizer and has a negative polarity on the wire side, which is the opposite of the conventional one. By forming a stable conical arc with strong directivity and realizing continuous and stable welding (fine spray transfer) by miniaturizing the molten wire droplet, the amount of spatter generated is greatly reduced and deep penetration is achieved. The feature is that you can get it.
The high-efficiency ultra-narrow groove welding system developed by JFE Steel received the 56th Japan Society for the Promotion of Machinery Chairman's Award from the Japan Society for the Promotion of Machinery. In order to meet the customer's request for further improvement of welding work efficiency, JFE Steel has developed a high efficiency ultra-narrow groove welding system that can significantly reduce the amount of welding. By significantly improving welding efficiency, it is possible to shorten the construction period and reduce construction costs, as well as reduce energy consumption and CO2 emissions.In order to improve welding efficiency, narrow groove welding that reduces the amount of welding by narrowing the groove provided between the base materials to be welded is effective, but spatter is generated and there was a problem that it was difficult to obtain a sound welded part due to insufficient penetration. With this developed technology, J-STAR Welding, which features ultra-low spatter, stable arc and deep penetration and optimization of the welding method and groove shape of the welded part, and By combining the control of the curvature of the weld wire, it is possible to obtain a healthy weld without welding defects even in an ultra-narrow groove that is even narrower than the narrow groove. By reducing the groove cross-sectional area to about one-third of the conventional one, it has become possible to reduce the welding amount to about one-third of the conventional oneWelding technology was established in collaboration with Nagai Seisakusho Co Ltd and Yamane Iron Works Construction Co Ltd. It has already been applied to Kumamoto Castle restoration and maintenance projects and office buildings in the Tokyo metropolitan area, contributing to a significant improvement in welding efficiency at construction sites.J-STAR Welding - J-STAR is an abbreviation for JFE Spray Transfer Arc. A carbon dioxide arc welding method that uses a welding wire to which an appropriate amount of Rare Earth Metal is added as an arc stabilizer and has a negative polarity on the wire side, which is the opposite of the conventional one. By forming a stable conical arc with strong directivity and realizing continuous and stable welding (fine spray transfer) by miniaturizing the molten wire droplet, the amount of spatter generated is greatly reduced and deep penetration is achieved. The feature is that you can get it.
