Kusiyana kwakukulu pakatithoriated tungsten electrodendi lanthanum tungsten elekitirodi ndi motere:
1. Zosakaniza zosiyanasiyana
Thoriumelectrode ya tungsten: Zosakaniza zazikulu ndi tungsten (W) ndi thorium oxide (ThO₂). Zomwe zili ndi thorium oxide nthawi zambiri zimakhala pakati pa 1.0% -4.0%. Monga chinthu cha radioactive, radioactivity ya thorium oxide imatha kupititsa patsogolo mphamvu ya ma elekitironi pamlingo wina.
Lanthanum tungsten electrode: Amapangidwa makamaka ndi tungsten (W) ndi lanthanum oxide (La₂O₃). Zomwe zili mu lanthanum oxide zili pafupi 1.3% - 2.0%. Ndi Earth oxide osowa kwambiri ndipo si radioactive.
2. Makhalidwe amachitidwe:
Electron emission performance
Thoriumelectrode ya tungsten: Chifukwa cha kuwonongeka kwa radioactive kwa thorium element, ma electron ena aulere adzapangidwa pamwamba pa electrode. Ma electron awa amathandiza kuchepetsa ntchito ya electrode, motero kumapangitsa kuti mphamvu yotulutsa ma elekitironi ikhale yamphamvu. Imathanso kutulutsa ma elekitironi mokhazikika pamatenthedwe otsika, zomwe zimapangitsa kuti izichita bwino nthawi zina monga kuwotcherera kwa AC komwe kumafunikira kuyambitsa arc pafupipafupi.
Lanthanum tungsten electrode: Ma electron emission performance ndi abwino. Ngakhale kuti palibe mpweya wothandiza wa ma elekitironi wothandiza, lanthanum oxide imatha kuyeretsa kapangidwe ka tungsten ndikusunga ma elekitirodi pamalo abwino otulutsa ma elekitironi pa kutentha kwakukulu. Mu njira yowotcherera ya DC, imatha kupereka arc yokhazikika ndikupanga mtundu wowotcherera kukhala yunifolomu.
Kuwotcha kukana
Electrode ya thorium tungsten: M'malo otentha kwambiri, chifukwa cha kukhalapo kwa thorium oxide, kukana kwa electrode kutentha kumatha kusinthidwa pang'ono. Komabe, ndi kuwonjezeka kwa nthawi yogwiritsira ntchito komanso kuwonjezeka kwa kuwotcherera panopa, mutu wa electrode udzayakabe mpaka kufika pamlingo wina.
Lanthanum tungsten electrode: Ili ndi kukana kwabwino kwa kutentha. Lanthanum okusayidi akhoza kupanga zoteteza filimu pa elekitirodi pamwamba pa kutentha kupewa makutidwe ndi okosijeni zina ndi kuyaka tungsten. Panthawi yowotcherera kwambiri kapena kuwotcherera kwa nthawi yayitali, mawonekedwe omaliza a lanthanum tungsten elekitirodi amatha kukhala okhazikika, kuchepetsa kuchuluka kwa ma elekitirodi pafupipafupi.
Kugwira ntchito kwa Arc
Thorium tungsten electrode: Ndikosavuta kuyambitsa arc, chifukwa ntchito yake yotsika imalola kuti njira yolumikizira ikhazikike pakati pa electrode ndi weldment mwachangu panthawi yoyambira, ndipo arc imatha kuyatsidwa bwino.
Lanthanum tungsten electrode: Mphamvu yoyambira ya arc ndiyotsika pang'ono poyerekeza ndi electrode ya thorium tungsten, koma pansi pazikhazikiko zowongolera zida zowotcherera, imatha kukhalabe ndi chiyambi chabwino cha arc. Ndipo imachita bwino pakukhazikika kwa arc pambuyo poyambira.
3. Zochitika zogwiritsira ntchito
Thoriumelectrode ya tungsten
Chifukwa cha ntchito yake yabwino yotulutsa ma elekitironi ndikuyamba kugwira ntchito kwa arc, nthawi zambiri imagwiritsidwa ntchito pakuwotcherera kwa AC argon arc, makamaka pakuwotcherera aluminiyamu, magnesiamu ndi ma aloyi ake ndi zida zina zokhala ndi zofunikira zoyambira. Komabe, chifukwa cha kukhalapo kwa radioactivity, kugwiritsidwa ntchito kwake kumaletsedwa nthawi zina ndi zofunikira zotetezedwa ndi ma radiation, monga kupanga zida zachipatala, kuwotcherera zida zamakampani azakudya ndi magawo ena.
Lanthanum tungsten electrode
Chifukwa palibe chowopsa cha radioactive, mawonekedwe ake ogwiritsira ntchito ndi okulirapo. Itha kugwiritsidwa ntchito mu kuwotcherera kwa argon arc ndi zina za AC argon arc kuwotcherera. Ikawotcherera zinthu monga chitsulo chosapanga dzimbiri, chitsulo cha kaboni, aloyi yamkuwa, ndi zina zambiri, imatha kuwonetsa magwiridwe antchito ake okhazikika komanso kukana kuyaka bwino kuti zitsimikizire mtundu wa kuwotcherera.
4. Chitetezo
Thorium tungsten electrode: Chifukwa imakhala ndi thorium oxide, chinthu chotulutsa radioactive, imapanga zoopsa zina zowopsa pakagwiritsidwe ntchito. Ngati atawululidwa kwa nthawi yayitali, zitha kukhala ndi zotsatira zoyipa pa thanzi la ogwira ntchito, kuphatikiza kuonjezera chiopsezo cha matenda monga khansa. Chifukwa chake, mukamagwiritsa ntchito ma electrode a thoriated tungsten, njira zodzitchinjiriza zoteteza ma radiation ziyenera kuchitidwa, monga kuvala zovala zoteteza komanso kugwiritsa ntchito zida zowunikira ma radiation.
Ma elekitirodi a Lanthanum tungsten: alibe zinthu zotulutsa ma radio, ndi otetezeka, ndipo sayenera kuda nkhawa ndi kuipitsidwa kwa radioactive pakagwiritsidwa ntchito, kukwaniritsa chitetezo cha chilengedwe komanso thanzi ndi chitetezo.
Nthawi yotumiza: Dec-19-2024