Emissivity of Tungsten Electrodes and Preventive Measures

On the market cerium tungsten, tungsten- lanthanum , yttrium tungsten, pure tungsten , zirconium , tungsten thorium tungsten electrodes . Tungsten cerium , lanthanum tungsten, pure tungsten , zirconium tungsten electrode non-radioactive ; thorium tungsten electrode is the world's highest market share of tungsten electrodes kind , accounting for over 70% of the world , but because thorium tungsten electrode grinding and polishing powder metallurgy and rolling will occur during radioactive contamination on the human body and the environment has a lot of harm , so European countries limit the production of the varieties electrode ; multivariate composite rare earth tungsten electrodes because they do not use radioactive elements thorium , to achieve a non-radioactive contamination in the field of green production and use. So in general there is a radioactive tungsten electrodes , mainly because more than 71% on the market using the thorium containing radioactive thorium tungsten electrode . < br />
Measures to prevent radiation injury

( 1) Thorium tungsten rod should be a dedicated storage device , a lot of storage should be hidden in a metal box inside , and install the exhaust pipe .

( 2 ) Use of airtight cover welding, the operation should not open the cover , manual operation, the air must wear protective helmets or use other effective measures .

( 3 ) Shall be available exclusively to the grinding wheel thorium tungsten rod , wheel confidential install dust removal equipment, grinder debris on the ground should always be wet wipe and focus deep processing .

( 4 ) Grinding thorium tungsten rod should wear dust masks. After contact with thorium tungsten rod should wash their hands with soap and running water , and wash clothes and gloves .

( 5 )The selection of appropriate standards welding , to avoid excessive burning thorium tungsten rod .

( 6 ) As far as possible without the use of thorium tungsten rod cerium or lanthanum tungsten rod tungsten rod , because the latter two non-radioactive .


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