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With the continuous improvement of industrial automation, automated welding equipment is becoming increasingly widely used in the manufacturing industry. Automated welding not only improves production efficiency but also ensures consistent and controllable weld quality. As a crucial consumable in the automated welding process, the performance of welding electrodes directly impacts the stability of equipment operation and welding results. Lanthanum tungsten electrodes, as high-performance, non- radioactive tungsten-based alloy electrodes, are becoming one of the preferred choices for automated welding systems due…

During high-temperature, high-energy arc welding, the electrode tip is subjected to multiple stresses, including intense thermal shock, electrochemical reactions, and metal evaporation. These stresses can cause tip burnout and shape degradation, ultimately impacting weld quality and production efficiency. For welding engineers and manufacturers, selecting an electrode material with strong burnout resistance not only improves welding stability but also effectively reduces consumable costs and equipment maintenance frequency. Among various tungsten-based electrodes, lanthanum tungsten electrodes have become a key choice in the…

In high-precision welding processes such as tungsten inert gas welding (TIG) and plasma welding, the cleanliness and anti-contamination ability of the electrode has a direct impact on the arc quality, weld consistency and equipment stability. Once the electrode is contaminated, such as contamination with welding metal, oxides or impurities, it will not only cause arc instability and difficulty in starting the arc, but may also cause welding defects and even equipment damage. Therefore, choosing an electrode material with good anti-contamination…

In the welding process, the electrode not only bears the functions of arc guidance and electron emission, but also is the key medium for heat transfer. Good thermal conductivity is crucial for electrode life, welding stability and tip temperature control. As one of the most widely used rare earth doped tungsten electrodes, lanthanum tungsten electrode has good electron emission ability, and its thermal conductivity is also one of the core factors affecting its overall welding performance. 1. Tungsten-based structure determines…

In TIG (Tungsten Inert Gas Arc Welding), plasma arc welding and some electronic discharge machining (EDM), the conductivity of the electrode is directly related to arc stability, energy transfer efficiency and welding quality. As traditional radioactive thorium electrodes are gradually eliminated, lanthanum tungsten electrodes have become an important alternative material in the field of modern welding due to their excellent conductivity, safety and environmental protection. So, as a rare earth doped tungsten-based alloy, what is its conductivity? What are its…

In welding, electrodes are the core material for establishing the arc, conducting energy, and forming the weld pool. With increasing environmental protection requirements and the prevalence of welding automation, traditional thorium-containing electrodes are gradually being replaced by non-radioactive alternatives, with lanthanum-tungsten electrodes being the most widely used and recognized. Beyond environmental and performance advantages, service life is also a key concern for users. So, how long can a lanthanum tungsten electrode last? And what factors influence its service life? 1.…

In modern welding processes, especially in high-precision applications like TIG (gas tungsten arc welding) and plasma welding, an electrode’s arc starting performance is a crucial parameter for evaluating its quality. Arc starting performance directly impacts the smoothness of the welding operation, the quality of the weld’s initial formation, and the stable operation of automated welding systems. Among various electrode materials, lanthanum tungsten electrodes are widely recognized for their excellent arc starting characteristics, demonstrating significant advantages in precision welding and repetitive…