Many welders today are still using 2% red-tipped thoriated Tungsten Electrodes, which contain radiotoxic thoria and therefore can be dangerous to health of those exposed to it, especially in the dust format from grinding the tips.
To overcome the accumulated hazardous thoria conditions, whilst maintaining a very high life expectancy for the Tungsten Electrode, blue-tipped MultiStrike® Tungsten Electrodes available in the USA from COB Industries contain a mix of non-radioactive rare earth elements, eliminating the risk to health posed by radiotoxic thoriated Tungsten Electrodes.
A customer recently said: "The introduction of MultiStrike® has been welcomed by all our welding staff. The new Tungsten Electrodes are giving excellent results and demonstrating much improved strike characteristics. Their life is significantly longer which is expected to lead to long-term cost savings. We are also aware of the health and safety benefits of using non-thoriated electrodes."
MultiStrikes® can be used for welding aluminium with the AC process, as well as steels and alloys with the DC process, which allows the welder to have just one type of Tungsten Electrode to weld all materials and reduce the amount of stocks and purchasing requisitions.
Other Tungsten Electrodes work at higher temperatures so their oxide additions (mostly radioactive) burn out, or evaporate much faster than those non-radioactive ingredients in MultiStrike®, so much so that MultiStrikes® give at least 10 times more arc striking capacity of other Tungsten Electrodes, when tested under the same conditions.
With most Tungsten Electrodes in use still containing radioactive and carcinogenic 2% thorium oxide, MultiStrike® provide the TIG and Plasma welder with a safe and superior alternative.
Each packet comes with a traceability number to ensure that companies with a quality control procedure have traceability over another aspect of their joining processes.
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