Tungsten Electrode

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Non-consumable Electrode 637

Non-consumable electrode can be applied in gas tungsten arc welding (GTAW), or tungsten inert-gas (TIG) welding. GTAW or TIG welding is a manual welding process that uses a non-consumable electrode made of tungsten, an inert or semi-inert gas mixture, and a separate filler material. Especially useful for welding thin materials, this method is characterized by a stable arc and high quality welds, but it requires significant operator skill and can only be accomplished at relatively low speeds. It can be…

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Barium Tungsten Electrode 427

Barium tungsten electrode may be manufactured via powder injection molding (PIM) process with homogeneous microstructure and good electron emission performance, which has been successfully applied in high power xenon flash lamps and pump lamps for laser. Compared with conventional tungsten electrode wound with tungsten wire, barium tungsten electrode for high pressure gas discharge lamps is produced using PIM process to form electrode with complex shapes, allowing designers to design electrode shape in accordance with the function of electrode. PIM is…

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Tungsten Electrode Holder 412

Tungsten electrode holder is also called tungsten needle holder, tungsten rod clip or tungsten clip, which is applied to clamp electrode to avoid falling during welding. Generally speaking, the electrode holder is used in a jacket, flow guide or copper head. Tungsten electrode holder is divided into two parts, clamp and jacket, both of which are made of tungsten. They can be applied in combination. Also, clamp can be used alone. The specification of tungsten electrode holder should be matched…

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Ternary Composite Tungsten Electrode 440

Ternary composite tungsten electrode should be studied to know its lamination mechanism during sintering. A tertiary RE-W electrode with a diameter of 16mm was used to do the research. The morphologies and phases of the sintered billets were investigated by SEM and XRD, respectively. The composition of the second phase particles was analyzed by EDAX. The percentages of rare earth oxides in different regions were detected by ICEP-AES. The distribution of RE elements at the fracture was detected by EPMA.…

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Composite Tungsten Electrode 375

Composite tungsten electrode is produced to meet more stringent requirements on tungsten electrode materials in welding industry – higher reliability and stability. In general, the arcing characteristics of composite tungsten electrode are better than that of tungsten electrode. And among composite tungsten electrode, ternary composite tungsten electrode has better performance than binary composite tungsten electrode. The optimal rare earth oxide ratio of ternary composite tungsten electrode is La2O3: CeO2: Y2O3=1:1:3. The performance of several tungsten electrodes mixed with rare earth…

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Minimally Invasive Tungsten Electrode 405

Minimally invasive tungsten electrode is a minimally invasive surgical instrument for electrosurgical instrument high-frequency electric knife. The tungsten electrode has an ultra-sharp tungsten alloy tip with a tip radius of curvature of less than 15μm, and has the advantages of precise cutting, fast cutting speed, small thermal damage range of tissue, and smooth operation in clinical applications. Minimally invasive surgery has been referred to as one of the surgical development directions in 21st century and has been enabled by the…

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Tungsten Needle Electrode 417

Tungsten needle electrode may be used to replace ordinary electric knife to provide refined energy application for delicate procedures. Capable of cutting and coagulating at a lower wattage, the needle performs the same surgical procedures as a standard needle electrode with less thermal damage to the surgical site, providing a superior surgical outcome for the patient. Also, it can be used as an electrode material in argon arc welding, or as an instrument probe. Advantages of Tungsten Needle Electrode 1.…

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Silver Tungsten Electrode 447

Silver tungsten electrode is also called silver tungsten rod or silver tungsten bar. It has the advantages of high melting point, high hardness, easy cutting performance, high conductivity, good wear resistance, nice resistance to welding and oxidation. The conductivity W-Ag electrode is even higher than that of tungsten copper alloy. Silver tungsten offers the ideal combination of the conductivity of silver and the arc resistance of tungsten. The common seen grades of silver tungsten electrode are AgW30, AgW40, AgW50, AgW55,…

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Yttrium Tungsten Electrode 453

Yttrium tungsten electrode is tungsten electrode added with 2% yttrium oxide (Y2O3). Its grade is WY20. The W-Y electrode’s resistance to burning is good at high current load, but the arc is unstable at low current load and the processing performance is poor. W-Y electrode, which has narrow arc beam, high compressing strength, and the highest welding penetration at medium and high current, is mainly applied in military industry and aerospace industry. Similar to thoriated tungsten electrode and cerium tungsten…

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Zirconiated Tungsten Electrode 405

Zirconiated tungsten electrode is the electrode of tungsten containing small amount of zirconium oxide (ZrO2). There are two grades including WZ3 and WZ8. And their color signs are brown and white respectively. During welding, pure tungsten electrode is easily self-melt to contaminate the work piece under high load conditions. W-Zr electrode is developed to improve this condition. The W-Zr electrode is produced for AC welding as it retains a balled end for welding of aluminum and magnesium alloys, and has…

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