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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…

In welding processes, especially those requiring a stable, high-temperature arc, such as argon arc welding (TIG) and plasma arc welding, the electron emission capability of the electrode plays a central role in the efficiency and quality of the welding process. Electron emission refers to the ability of the electrode material to release thermal electrons at high temperatures. This capability determines the ease of arc formation, arc stability, and the concentration of heat input. Different electrode materials exhibit distinct differences in…

In high-precision welding techniques like tungsten inert gas welding (TIG), electrodes, as core components for arc generation and energy conduction, play a decisive role in welding performance. Among the many tungsten-based materials, pure tungsten has long been widely used, playing a particularly important role in early welding processes. However, with the continuous advancement of welding technology and the increasing demand for welding efficiency, environmental friendliness, and stability, a new rare earth-doped material— lanthanum -tungsten electrodes—is gradually becoming a preferred alternative…

Tungsten inert gas welding (TIG) and plasma welding, the choice of electrode material plays a decisive role in the welding quality. With the widespread application of environmentally friendly materials, lanthanum tungsten electrode has gradually become an important choice in the welding industry. In addition to the material properties themselves, the selection of size is also one of the key factors that determine the success or failure of welding. The diameter and length of the electrode are not only related to…

In modern welding processes, the correct current setting plays a crucial role in weld quality. As a non-consumable electrode material, tungsten-based products are widely used in tungsten inert gas (TIG) welding and plasma arc welding. Lanthanum oxide-doped and modified products are increasingly favored in the welding industry due to their environmental, safety, and stable performance. So, what is the ideal welding current range for lanthanum tungsten electrodes? This affects not only arc starting performance, but also weld quality and consumable…

With the widespread use of argon arc welding (TIG) technology today, the type of welding power source—direct current (DC) or alternating current (AC) —has a direct impact on welding process stability, material compatibility, and welding efficiency. Electrode material, a key component of the welding process, and its compatibility with the power source are fundamental to weld quality. Lanthanum tungsten electrodes, favored across multiple industries for their excellent arc starting capability and environmental friendliness, are these non-radioactive rare earth-doped welding materials…

In the welding industry, tungsten electrodes, a key material in precision processes like argon arc welding (TIG), play a crucial role in arc generation, stable electrical conductivity, and heat conduction. With the advancement of materials processing, welding alloys doped with rare earth elements have gradually replaced traditional products containing radioactive components. Among these, products doped with lanthanum oxide (LTO) are widely used in various industrial applications due to their excellent arc starting performance and environmental friendliness. So, how can lanthanum…