Elekitirodi yabwino kwambiri ya tungsten pa ntchito inayake imadalira zinthu monga mtundu wa kuwotcherera, zinthu zowotcherera komanso zowotcherera pano. Komabe, ma electrode a tungsten omwe amagwiritsidwa ntchito kwambiri ndi awa:

1. Thoriated tungsten electrode: nthawi zambiri amagwiritsidwa ntchito pakuwotcherera kwa DC kwa chitsulo chosapanga dzimbiri, aloyi ya nickel ndi titaniyamu. Iwo ali ndi makhalidwe abwino arc kuyambira ndi kukhazikika.

2. Elekitirodi ya Tungsten-cerium: yoyenera kuwotcherera kwa AC ndi DC, yomwe nthawi zambiri imagwiritsidwa ntchito pakuwotcherera chitsulo cha kaboni, chitsulo chosapanga dzimbiri, aloyi ya nickel ndi titaniyamu. Iwo ali ndi makhalidwe abwino oyambira arc ndi mitengo yochepa yotopa.

3. Lanthanum Tungsten Electrodes: Awa ndi ma elekitirodi osunthika oyenerera AC ndi DC kuwotcherera kwa chitsulo cha carbon, chitsulo chosapanga dzimbiri, ma aloyi a nickel ndi titaniyamu. Ali ndi kukhazikika kwa arc komanso moyo wautali wautumiki.

4. Zirconium tungsten elekitirodi: kawirikawiri ntchito AC kuwotcherera aluminum ndi magnesium aloyi. Amakhala ndi kukana bwino kuipitsidwa ndipo amapereka arc yokhazikika.

Ndikofunikira kukaonana ndi katswiri wazowotcherera kapena kulozera ku maupangiri enaake owotcherera kuti mudziwe ma elekitirodi abwino kwambiri a tungsten pa ntchito inayake yowotcherera.

Tungsten si wamphamvu kuposa diamondi. Daimondi ndi imodzi mwazinthu zolimba kwambiri zomwe zimadziwika ndipo zimadziwika ndi kuuma kwapadera komanso mphamvu. Amapangidwa ndi maatomu a carbon omwe amakonzedwa mumtundu wina wa kristalo, womwe umapatsa katundu wapadera.

Komatu, tungsten ndi chitsulo cholimba kwambiri komanso cholimba chomwe chimasungunuka kwambiri, koma sicholimba ngati diamondi. Tungsten imagwiritsidwa ntchito nthawi zambiri pamapulogalamu omwe amafunikira mphamvu yayikulu komanso kukana kutentha, monga kupanga zida zogwira ntchito kwambiri, kulumikizana kwamagetsi, ndi makampani opanga ndege.

Mwachidule, pamene tungsten ndi chinthu cholimba komanso cholimba, sichiri cholimba ngati diamondi. Daimondi ikadali imodzi mwazinthu zolimba komanso zolimba zomwe zimadziwika kwa munthu.

Tungsten ili ndi malo osungunuka kwambiri a 3,422 ° C (6,192 ° F), zomwe zimapangitsa kuti ikhale imodzi mwamalo osungunuka kwambiri pazinthu zonse. Komabe, pali zinthu zina zomwe zimatha kusungunula tungsten:

1. Tungsten yokha: Tungsten imatha kusungunuka pogwiritsa ntchito kutentha kwambiri komwe kumapangidwa ndi zida zapadera monga ng'anjo zamagetsi zamagetsi kapena njira zina zotenthetsera zapamwamba.

2. Tungsten-rhenium alloy: Kuonjezera rhenium pang'ono ku tungsten kungathe kuchepetsa kusungunuka kwa alloy. Aloyiyi imagwiritsidwa ntchito popanga kutentha kwakukulu komwe kumafunika kusungunuka.

3. Tungsten imathanso kusungunuka pamaso pa mpweya wina wothamanga kapena pansi pazikhalidwe zina m'malo olamulidwa.

Nthawi zambiri, kusungunuka kwa tungsten kumafuna mikhalidwe yovuta kwambiri chifukwa cha kusungunuka kwake kwakukulu, komwe nthawi zambiri kumakhala kosavuta kukwaniritsa.