Imashini zikata plasmamuri rusange ufite imbaraga zidafite umutwaro na voltage ikora, kandi kwiyongera kwa voltage bivuze kwiyongera kwa arc ishyaka.Mugihe wongeyeho ishyaka, kugabanya diameter yindege no kongera umuvuduko wa gaze birashobora kuzamura umuvuduko wo kugabanya no kugabanya ubwiza.Umuvuduko mwinshi urakenewe mugihe ukoresheje imyuka ifite ingufu nyinshi za ionisation, nka azote, hydrogène cyangwa umwuka.Ni ubuhe butumwa butandukanye bwo guhitamo gazi?Reka turebe isesengura rirambuye rya gaze nabakora umwuga wo gukata plasma babigize umwuga.
Hydrogen isanzwe ikoreshwa nka gaze yingoboka ivanze nizindi myuka, kandi gaze H35 nimwe mumyuka ifite ubushobozi bukomeye bwo guca plasma arc.Iyo hydrogène ivanze na argon, igice kinini cya hydrogène ni 35%.Kubera ko hydrogène ishobora kongera ingufu za arc arc, indege ya hydrogen plasma ifite ishyaka ryinshi, kandi ubushobozi bwo guca indege ya plasma bwateye imbere cyane.
Oxygene irashobora kongera umuvuduko wo guca ibikoresho byoroheje.Iyo ukata hamwe na ogisijeni, uburyo bwo gukata burasa cyane nubwa mashini ikata umuriro wa CNC.Ubushyuhe bwo hejuru hamwe ningufu nyinshi plasma arc bituma umuvuduko wo guca vuba, ariko ugomba gukoreshwa ufatanije na electrode irwanya ubushyuhe bwinshi.Ongera ubuzima bwa electrode.
Igicapo cyatewe no gukata ikirere no gukata azote birasa, kubera ko ingano ya azote mu kirere igera kuri 78%, kandi mu kirere hari umwuka wa ogisijeni ugera kuri 21%, bityo umuvuduko wo guca ibyuma bike bya karubone hamwe n’umwuka nabyo ni byinshi cyane muremure, na Air ni gaze ikora cyane mubukungu, ariko gukata hamwe numwuka byonyine bizatera ibibazo nko kumanika slag, okiside ya kerf, na azote kwiyongera.Ubuzima bwo hasi bwa electrode na nozzles nabyo bizagira ingaruka kumikorere no kugabanya ibiciro.
Ukurikije ingufu z'amashanyarazi menshi, azote plasma arc ifite ituze ryiza ningufu zindege zirenze argon.Kurugero, mugihe ukata ibyuma bidafite ingese hamwe na nikel-ishingiye kuri nikel, habaho icyapa gito cyane kuruhande rwo hasi, kandi azote irashobora gukoreshwa wenyine.Irashobora kandi kuvangwa nizindi myuka.Azote cyangwa umwuka bikoreshwa cyane nka gaze ikora mugukata byikora, kandi iyo myuka yombi yabaye gaze isanzwe yo guca byihuse ibyuma bya karubone.
Imikorere ya argon irahamye, kandi ntabwo ikora nicyuma icyo aricyo cyose nubwo haba hari ubushyuhe bwinshi, kandi nozzle na electrode yakoreshejwe bifite ubuzima burebure.Nyamara, voltage ya argon plasma arc iri hasi, ishyaka ntabwo riri hejuru, kandi ubushobozi bwo gukata ni buke.Ugereranije no guca ikirere, uburebure bwo kugabanya buzagabanukaho 25%.Byongeye kandi, hejuru yubushyuhe bwicyuma gishongeshejwe ni hejuru cyane, bikaba hejuru ya 30% ugereranije nibidukikije bya azote, bityo hazabaho ibibazo byinshi byo kumanika slag.Ndetse no gukata hamwe na gaze ivanze yizindi myuka bizakunda gukomera.Kubwibyo, argon yera ikoreshwa gake mugukata plasma.
ABAGABO-AMAHIRWE, uruganda rwumwuga rwaibikoresho byo gukata laser, itanga ubwoko bwose bwimashini ikata laser, imashini yo gusudira laser, hamwe nimashini isukura lazeri mububiko igihe kirekire, kandi itanga serivisi zokwemeza icyarimwe.Niba hari ibyo ukeneye gutunganya laser, nyamuneka twandikire!
Igihe cyo kohereza: Gicurasi-09-2023