Lanthanum Tungsten Electrode Performance and Lanthanum Tungsten Electrode Manufacturing Method

Lanthanum tungsten electrode welding performance and conductive properties closest to 2% thoriated tungsten electrodes, and no radiological hazards, welders welding operation without changing any program can use this convenient alternative thorium tungsten electrode is an electrode, so lanthanum tungsten electrode become the most popular in Europe and Japan 2% thoriated tungsten electrodes alternatives. Lanthanum tungsten electrode is mainly used for DC welding, but for AC welding also performed well.

Lanthanum tungsten electrode manufacturing method relates to a method mainly used for TIG (tungsten inert gas welding) and PLASMA (plasma) technology for metal welding, cutting, spray coating, a melting method for manufacturing the tungsten electrode.

(1) using lanthanum acetate and including APT, WO3, and W powder of solid material made from a slurry of water mixed to prepare a lanthanum tungsten-coated powder;

(2) lanthanum lanthanum tungsten-coated powder decomposition of hydrogen atmosphere in the reduction process and simultaneously, a reduction temperature is controlled at 600 ~ 700 ℃, time is 2 to 3 hours, the second reduction temperature control 800 - 970 ℃, the hydrogen flow rate during the 0.5-2.0m3 / h.

10 / plastic box, the length is 150mm or 175mm, 1000  per carton.

Lanthanum tungsten electrode welding because of its good performance in the international welding industry concern. Lanthanum tungsten electrode conductivity closest WT20 thorium tungsten electrode. Therefore, welders welding operation without changing any program can use this convenient alternative thorium tungsten electrode electrode. This shift, whether in exchange conditions or under DC conditions are easier. Another advantage of lanthanum tungsten electrode performance at its current high durability and burning the minimum rate.


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