Application and Development of Dual-Ring Laser Welding Technology in Straight Seam Welded Pipe Machi
Posted by： Hangao Time：11/11/2025 2:36:30 PM
I. Industry Background
With the widespread application of stainless steel pipes in food, medical, and chemical industries, the production quality of straight seam welded pipes has become a core competitive advantage for enterprises. Traditional argon arc welding has shortcomings in terms of efficiency and weld quality, while the emergence of laser pipe welding machines, especially the application of dual-ring laser welding technology, has brought new breakthroughs to the industry. Guangdong Henkel Technology Co., Ltd., as a leading domestic manufacturer of welded pipe equipment, was the first to introduce a dual-ring laser welding solution into straight seam welded pipe machines, driving the technological upgrade of stainless steel welded pipe machines.
II. Principle of Dual-Ring Laser Welding Technology
Dual-ring laser welding adopts a "central deep penetration + outer ring stabilization" spot structure:
· Central beam: Provides high energy density, achieving deep penetration welding and ensuring weld strength.
· Outer ring beam: Acts as preheater and slow cooler, stabilizing the molten pool and reducing spatter and cracks.
This dual-ring spot distribution allows laser pipe welding machines to balance efficiency and quality in straight seam welded pipe production, and is particularly suitable for welding high-reflectivity materials in stainless steel pipe welding machines.
III. Technological Advantages of Guangdong Henkel Technology Co., Ltd.
Guangdong Henkel Technology Co., Ltd. has accumulated rich experience in the research and development of laser pipe welding machines:
1. High Equipment Integration: The dual-ring laser welding light source, optical system, shielding gas system, and automated control module are highly integrated.
2. Strong Process Stability: Through the energy distribution of the ring beam, the porosity and lack of fusion defects in the weld are significantly reduced.
3. Wide Applicability: Not only suitable for thin-walled stainless steel straight seam welded pipes, but also meeting the high-strength welding requirements of thick-walled pipes.
On multiple production lines, Guangdong Henkel Technology Co., Ltd.'s laser pipe welding machines have been mass-produced and applied. Customer feedback indicates smooth weld surfaces, low rework rates, and a production efficiency increase of over 20%.
IV. Key Process Points
· End Face Preparation: Before welding, the stainless steel pipe welding machine must be thoroughly cleaned of oil and oxide scale to ensure the gap is controlled within 0.15 mm.
· Shielding Gas: High-purity argon or an argon-nitrogen mixture is used to ensure the stability of the weld metal structure.
? Monitoring System: Guangdong Henkel Technology Co., Ltd.'s laser pipe welding machines are equipped with real-time molten pool monitoring to ensure the weld width-to-depth ratio meets standards.
V. Application Prospects The application of dual-ring laser welding technology in straight seam welded pipe machines and stainless steel welded pipe machines is becoming an industry trend. Guangdong Henkel Technology Co., Ltd., through continuous R&D and process optimization, promotes the widespread application of laser pipe welding machines in high-end manufacturing, pressure vessels, and food-grade pipes. In the future, with further improvements in international standards, dual-ring laser welding will become the mainstream technology for straight seam welded pipes.
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