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Tungsten electrodes of WR-2 – Avek Global, OOO | all.biz
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Tungsten electrodes of WR-2

Tungsten electrodes of WR-2

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1.71 EUR
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Ukraine, Kiev
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Technical characteristics
  • The electrode materialTungsten
Description
Tungsten - extremely refractory, its temperature of melting of +3422 °C therefore electrodes from this metal belong to not melting. Such electrodes keep hardness at a strong warming up, have small coefficient of temperature expansion, possess excellent heat conductivity, very high resistance of temperature creep and the considerable module of elasticity. Demand for tungsten electrodes (bar) and a wire grows every day. However difficulty of receiving tungsten in pure form (it belongs to a rare element of crust) and complexity of processing, owing to its exclusive properties - all this considerably affects the cost of electrodes. Such electrodes rather heavy, the cubic centimeter of this metal weighs 19,3 gr. Pure W very fragile at the room temperature.

WT-20, WL-20, WC-20, WZ8, WP, WY-20 - brands of the tungsten electrodes which are most often used at arc welding in the environment of protective gas.

The tungsten not melting electrodes are applied in such type of welding as TIG - Tungsten Insert Gas (WIG, GTA, ADS) - manual, semi-automatic, automatic arc welding by not melting electrode in the environment of inert protective gas. The used gases: inert (argon or helium), active (carbon dioxide, nitrogen, oxygen, hydrogen) or their mixes (Ar + CO2, Ar + O2, Ar + Not).


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