Isakhiwo somthombo wokuhwamuka kokushisa silula, kulula ukusisebenzisa, kulula ukusenza, uhlobo olulodwa lomthombo wokuhwamuka olusetshenziswa kakhulu. Abantu bavame ukubizwa ngokuthi i-heat generator noma isikebhe sokuhwamuka.
Izidingo zokushisa izinto zokumelana ezisetshenziswayo yilezi: izinga lokushisa eliphezulu, ukumelana, umfutho ophansi womusi emazingeni okushisa aphezulu, akukho ukusabela kwamakhemikhali nezinto zolwelwesi, akukhiqizi igesi kanye nokungcola. Izinto zokushisa ezikhethiwe zokumelana ikakhulukazi ezivela ezinsimbini eziphikisayo, njenge-W, Mo, Ta nezinye izinto noma ukukhethwa kwezinto zobumba eziqhubayo ezihlanzekile kakhulu, i-graphite enamandla aphezulu noma i-boron nitride nezinye izinto. Ngezinye izikhathi, zingakhetha futhi i-Fe, Ni, i-Ni-Cr alloy kanye ne-Pt njengezinto zomthombo wokuhwamuka.
Umthombo wokuhwamuka kokushisa ohlukahlukene wokumelana nokushisa wezinto ezivamile (njenge-Ti, Mo, C, Ta, W, njll.) wephuzu lokuncibilika kanye nomfutho womusi kanye nobudlelwano bokushisa uhlukile. Phakathi kwazo, i-tungsten iba brittle uma ishiswa ekushiseni kokushisa ngenxa yomkhiqizo wokuhlangana kokushisa. I-Molybdenum, ngakolunye uhlangothi, iyahlukahluka ngobumsulwa, kanti ezinye ziba brittle kanti ezinye azibi brittle. I-Tungsten isabela nomhwamuko wamanzi ukuze yakhe i-volatile oxygen compound WO3.
Ngakho-ke, uma i-tungsten ishiswa emfuleni wamanzi osele, izinto ezishisiwe ziyaphela njalo. Uma ingcindezi yegesi eseleyo iphansi, akukho ukulahleka okukhulu kwezinto, kodwa kungukungcola okukhulu kwe-membrane.
Ukusetshenziswa kwemithombo yefilamentary kufanele kuqaphele ukumanziswa kwentambo eshisayo ezintweni ze-membrane. Isibonelo, izinga lokushisa lentambo eshisayo likhuphuka ngokushesha kakhulu, izinto ze-membrane akulula ukuzincibilikisa ngokushesha zonke izinto ze-membrane futhi ukumanziswa kwentambo eshisayo akwanele. Ngenxa yalokho, ifilimu engancibilikisiwe ingase iwele ebhasikidini lentambo. Ngesikhathi esifanayo, ukunyuka kwezinga lokushisa kushesha kakhulu kuzophinde kubangele ukuthi izinto ze-membrane ezisegesini zikhishwe ngokushesha, okuholela kumabhamuza noma ukuchaphaza, umphumela uzokwenza ukwakheka kwamaconsi amancane kunamathele ku-substrate. Ngakho-ke, imithombo ye-filament kufanele isetshenziswe ngokulawula izinga lokushisa.
Ububi obukhulu bamabhasikidi ensimbi, amakhoyili ayindilinga noma amakhoyili ajikelezayo ukuthi inani lezinto ezisekela ifilimu lincane kakhulu, futhi lo mthombo uzokwenza izinga lokushisa lentambo eshisayo likhuphuke njengoba inani lezinto zefilimu lehla ngemva kokuba izinto zefilimu zipheshulwe, ngaleyo ndlela kubangele izinga lokupheshulwa kwamanzi. Lokhu futhi kuyinkinga okufanele iqashelwe ngenqubo yokwenza ifilimu edinga ukulawulwa okuqinile kwesilinganiso sokupheshulwa kwamanzi.
(2) Isimiso sokusebenza kanye nesimo sesakhiwo kanye nesici sokusetshenziswa
Ukumelana Ukushisa Umthombo wokuhwamuka, eqinisweni, kuyinto heater ukumelana, ukusetshenziswa ijeneretha yokushisa noma isikebhe ukuhwamuka ngqo amandla, ukuze wamanje ngokusebenzisa inani elikhulu Joule ukushisa futhi uthole izinga lokushisa eliphezulu ukuncibilikisa metal ifilimu impahla, ukuze ukuhwamuka yayo uhlobo umthombo ukuhwamuka.
–Lesi sihloko sikhishwe yi-umenzi womshini wokumboza nge-vacuumI-Guangdong Zhenhua
Isikhathi sokuthunyelwe: Feb-23-2024