1. Cov yam ntxwv ntawm arc teeb electron ntws
Qhov ceev ntawm cov electron flow, ion flow, thiab cov atoms neutral siab hauv arc plasma tsim los ntawm arc discharge yog siab dua li ntawm glow discharge. Muaj ntau cov roj ions thiab cov hlau ions ionized, excited high-energy atoms, thiab ntau pawg neeg ua haujlwm hauv qhov chaw txheej, uas ua lub luag haujlwm tseem ceeb hauv cov cua sov, ntxuav, thiab txheej txheej ntawm cov txheej txheem txheej. Daim ntawv ua haujlwm ntawm arc electron flow txawv ntawm ion beam, tsis yog txhua tus sib sau ua ke rau hauv "beam", tab sis feem ntau nyob rau hauv lub xeev divergent, yog li nws hu ua arc electron flow. Vim tias arc electrons ntws mus rau anode, arc electron flow yog qhia txhua qhov chaw uas lub electrode zoo ntawm lub zog arc txuas nrog, thiab anode tuaj yeem yog workpiece, auxiliary anode, crucible, thiab lwm yam.
2.Txoj kev tsim cov hluav taws xob arc
(1) Lub hauv paus roj tsim cov hluav taws xob arc: qhov tam sim no arc ntawm hollow cathode arc discharge thiab hot wire arc discharge tuaj yeem ncav cuag li 200A, thiab qhov hluav taws xob arc yog 50-70V.
(2) Cov khoom siv khov kho tsim cov hluav taws xob arc: cathode arc qhov chaw, suav nrog cov khoom siv me me arc, cylindrical arc qhov chaw, rectangular plane loj arc qhov chaw, thiab lwm yam. Lub zog arc ntawm txhua qhov cathode arc qhov chaw tso tawm yog 80-200A, thiab lub zog arc yog 18-25V.
Qhov siab-density thiab qis-zog arc electron ntws hauv ob hom arc discharge plasmas tuaj yeem tsim kev sib tsoo ionization nrog cov roj thiab cov hlau zaj duab xis atoms, tau txais ntau cov roj ions, cov hlau ions, thiab ntau yam siab-zog active atoms thiab pawg, yog li txhim kho qhov kev ua haujlwm tag nrho ntawm cov zaj duab xis txheej ions.
– Tsab xov xwm no tau tshaj tawm los ntawm Guangdong Zhenhua, ib tuglub tshuab nqus tsev txheej tshuab chaw tsim khoom
Lub sijhawm tshaj tawm: Tsib Hlis-31-2023