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This post was last edited by Desert Fish on 2022-10-15 at 11:23. Lansi Group actively seizes the opportunities presented by **\"new infrastructure\" development and Gansu Province’s initiatives related to the \"three modernizations.\" It implements strategies driven by innovation and digital technologies, and at the beginning of 2022 it initiated the process for submitting applications for projects related to these \"three modernizations.\" The High-End Equipment System Integration R&D Center of Lansi Research Institute leverages the institute’s specialized strengths in digital technology, machinery, and electrical control to foster cross-company, cross-departmental, and interdisciplinary collaborative innovation. It has taken on the project to upgrade the \"narrow-gap submerged arc welding operation control system\", as proposed by Lansi Heavy Equipment. This project aims to overcome the key technologies related to narrow-gap welding of thick plates, to achieve intelligent welding processes, and to assist Lansi Group in upgrading the welding equipment used for nuclear power pressure vessels, large-scale coal-to-liquid (or gas) conversion reactors, and large-scale hydrogenation reactors. At the welding site, narrow-gap submerged arc welding is widely used. Lansi Group is actively seizing the opportunities presented by **\"new infrastructure\" projects and Gansu Province’s initiatives related to modernization. It is committed to implementing innovation- and digital-driven strategies; at the beginning of 2022, the group initiated the process of applying for projects related to these modernization efforts. The High-End Equipment System Integration R&D Center of Lansi Research Institute leverages the institute’s specialized strengths in digital technology, machinery, and electrical control to foster cross-company, cross-departmental, and interdisciplinary collaborative innovation. It has taken on the project to upgrade the \"narrow-gap submerged arc welding operation control system\", as proposed by Lansi Heavy Equipment. This project aims to overcome the key technologies related to narrow-gap welding of thick plates, to achieve intelligent welding processes, and to assist Lansi Group in upgrading the welding equipment used for nuclear power pressure vessels, large-scale coal-to-liquid (or gas) conversion reactors, and large-scale hydrogenation reactors. Narrow-gap submerged arc welding has been widely used in the manufacturing of thick-walled pressure vessels, and the key to narrow-gap submerged arc welding is weld tracking detection technology. Currently, foreign narrow-gap submerged arc welding equipment employs laser tracking detection technology, while domestic equipment for this purpose mostly uses mechanical methods. This results in issues such as insensitive detection signal feedback, narrow grooves, difficulties in slag removal, and the need for manual assistance in high-altitude and high-temperature environments, all of which severely limit production efficiency. Research shows that there are no cases in China of laser tracking inspection technology or ground-based operations for thick plate narrow-gap multi-layer multi-pass welding. The narrow-gap welding groove proposed by Lanshi Heavy Equipment features side walls that are nearly vertical with a depth of 300 millimeters, and it involves requirements related to machinery, electrical control, automatic material transport and recycling, as well as automatic slag removal, making the technical development quite challenging. In response to the technical challenges posed by Lanshi Heavy Equipment, the High-End Equipment System Integration R&D Center took prompt action by forming a task force. After conducting an analysis of the technical advantages of the on-site welding processes, it carried out targeted upgrades and developments for Lanshi Heavy Equipment’s narrow-gap submerged arc welding equipment. The project team integrates technologies such as laser scanning for detection and tracking, pneumatic cutting tools, pneumatic slag removal, and welding monitoring to provide real-time oversight and tracking of aspects such as the start and stop of welding, the welding condition, weld shape, and slag removal. This enables operators to control the process from the ground, reducing their workload, minimizing risks associated with working at heights, and **improving production efficiency**. “The technical plan for the “Upgrade of the Operation Control System for Narrow-Gap Submerged Arc Welding” project has passed the review and defense by the expert committee and technical personnel of Lanshi Heavy Equipment, and is feasible for implementation. At present, the project has completed the 3D modeling of the overall installation layout, the design of the pneumatic circuit schematics, the selection of purchased components, and the preparation of the electrical procurement list; program development work is currently in progress. With the improvement and optimization of the operation control system for narrow-gap submerged arc welding, the degree of automation and intelligence in this welding process will increase further. This will lay a solid foundation for centralized control of the equipment as well as for the creation of digital workshops, contributing to the group’s efforts to build a \"digital Lanshi\" and enabling the group’s equipment manufacturing sector to move toward greener, more digital, and more intelligent practices. The manufacturing of pressure vessels with walls, and the key to narrow-gap submerged arc welding is weld tracking detection technology. Currently, foreign narrow-gap submerged arc welding equipment employs laser tracking detection technology, while domestic equipment for this purpose mostly uses mechanical methods. This results in issues such as insensitive detection signal feedback, narrow grooves, difficulties in slag removal, and the need for manual assistance in high-altitude and high-temperature environments, all of which severely limit production efficiency. Research shows that there are no cases in China of laser tracking inspection technology or ground-based operations for thick plate narrow-gap multi-layer multi-pass welding. The narrow-gap welding groove proposed by Lanshi Heavy Equipment features side walls that are nearly vertical with a depth of 300 millimeters, and it involves requirements related to machinery, electrical control, automatic material transport and recycling, as well as automatic slag removal, making the technical development quite challenging. In response to the technical challenges posed by Lanshi Heavy Equipment, the High-End Equipment System Integration R&D Center took prompt action by forming a task force. After conducting an analysis of the technical advantages of the on-site welding processes, it carried out targeted upgrades and developments for Lanshi Heavy Equipment’s narrow-gap submerged arc welding equipment. The project team integrates technologies such as laser scanning for detection and tracking, pneumatic cutting tools, pneumatic slag removal, and welding monitoring to provide real-time oversight and tracking of aspects such as the start and stop of welding, the welding condition, weld shape, and slag removal. This enables operators to control the process from the ground, reducing their workload, minimizing risks associated with working at heights, and **improving production efficiency**. “The technical plan for the “Upgrade of the Operation Control System for Narrow-Gap Submerged Arc Welding” project has passed the review and defense by the expert committee and technical personnel of Lanshi Heavy Equipment, and is feasible for implementation. At present, the project has completed the 3D modeling of the overall installation layout, the design of the pneumatic circuit schematics, the selection of purchased components, and the preparation of the electrical procurement list; program development work is currently in progress. With the improvement and optimization of the operation control system for narrow-gap submerged arc welding, the degree of automation and intelligence in this welding process will increase further. This will lay a solid foundation for centralized control of the equipment as well as for the creation of digital workshops, contributing to the group’s efforts to build a \"digital Lanshi\" and enabling the group’s equipment manufacturing sector to move toward greener, more digital, and more intelligent practices.