Ni irihe tandukaniro riri hagati ya TIG (DC) na TIG (AC)?

Ubuyobozi bwa TIG (DC) bwo gusudira nigihe iyo ikigenda gitemba icyerekezo kimwe gusa.Ugereranije na AC (Guhindura Ibiriho) TIG gusudira umuyaga umaze gutemba ntuzajya kuri zeru kugeza gusudira birangiye.Muri rusange inverteri ya TIG izaba ishobora gusudira haba DC cyangwa AC / DC gusudira hamwe nimashini nke cyane ari AC gusa.

DC ikoreshwa mugusudira TIG Icyuma Cyoroheje / Ibikoresho bitagira umuyonga na AC byakoreshwa mugusudira Aluminium.

Ubuharike

Igikorwa cyo gusudira TIG gifite uburyo butatu bwo gusudira ukurikije ubwoko bwihuza.Buri buryo bwo guhuza bufite ibyiza nibibi.

Ibiriho bitaziguye - Electrode mbi (DCEN)

Ubu buryo bwo gusudira burashobora gukoreshwa mubikoresho byinshi.TIG yo gusudira ya TIG ihujwe nibisubizo bibi bya welding inverter hamwe numurimo wo kugaruka kumurongo usohoka neza.

Iyo arc yashizweho ikigezweho gitemba mukuzunguruka no gukwirakwiza ubushyuhe muri arc bigera kuri 33% muruhande rubi rwa arc (itara ryo gusudira) na 67% muburyo bwiza bwa arc (igice cyakazi).

Iringaniza ritanga arc yimbitse ya arc mubice byakazi kandi bigabanya ubushyuhe muri electrode.

Ubu bushyuhe bwagabanutse muri electrode butuma amashanyarazi menshi atwarwa na electrode ntoya ugereranije nandi masano ya polarite.Ubu buryo bwo guhuza bukunze kuvugwa nka polarite igororotse kandi niyo ihuza cyane ikoreshwa muri DC yo gusudira.

Ibiriho - Electrode nziza (DCEP)

Iyo gusudira muri ubu buryo itara rya TIG ryo gusudira rihujwe nigisubizo cyiza cya welding inverter hamwe nakazi ko kugaruka kumurimo usohoka mubi.

Iyo arc yashizweho ikigezweho gitemba mukuzunguruka no gukwirakwiza ubushyuhe muri arc bingana na 33% muruhande rubi rwa arc (igice cyakazi) na 67% muburyo bwiza bwa arc (itara ryo gusudira).

Ibi bivuze ko electrode ikorerwa ubushyuhe bwinshi kandi rero igomba kuba nini cyane ugereranije nuburyo bwa DCEN nubwo ikigezweho ari gito kugirango wirinde ubushyuhe bwa electrode cyangwa gushonga.Igice cyakazi gikorerwa ubushyuhe bwo hasi kuburyo gusudira byinjira bizaba bito.

 

Ubu buryo bwo guhuza bukunze kwitwa polarite.

Na none, hamwe nubu buryo ingaruka zinguvu za magneti zirashobora gushikana ku guhungabana hamwe nikintu kizwi nka arc blow aho arc ishobora kuzerera hagati yibikoresho byo gusudira.Ibi birashobora kandi kubaho muburyo bwa DCEN ariko biriganje cyane muburyo bwa DCEP.

Hashobora kwibazwa icyo gukoresha ubu buryo mugihe cyo gusudira.Impamvu nuko ibikoresho bimwe na bimwe bidafite fer nka aluminiyumu mugihe gisanzwe gihura nikirere bigira okiside hejuru.Iyi oxyde ikorwa kubera reaction ya ogisijeni mu kirere hamwe nibintu bisa n'ingese ku byuma.Nyamara iyi oxyde irakomeye cyane kandi ifite aho ishonga cyane kuruta ibikoresho fatizo bityo igomba gukurwaho mbere yo gusudira.

Okiside irashobora gukurwaho no gusya, gukaraba cyangwa gusukura imiti ariko mugihe isuku ihagaritse okiside itangira kongera kubaho.Kubwibyo, nibyiza ko byasukurwa mugihe cyo gusudira.Ingaruka ibaho mugihe ikigezweho gitemba muburyo bwa DCEP mugihe electron ya electron izacika ikanakuraho okiside.Birashobora rero gutekerezwa ko DCEP yaba uburyo bwiza bwo gusudira ibyo bikoresho hamwe nubu bwoko bwa oxyde.Kubwamahirwe, kubera guhura na electrode kurwego rwo hejuru rwubushyuhe muri ubu buryo ingano ya electrode igomba kuba nini kandi arc kwinjira bikaba bike.

Igisubizo kuri ubu bwoko bwibikoresho cyaba arc yinjira cyane muburyo bwa DCEN hiyongereyeho isuku yuburyo bwa DCEP.Kugirango ubone izo nyungu uburyo bwo gusudira AC bukoreshwa.

Ubundi buryo bwo gusudira (AC)

Iyo gusudira muburyo bwa AC icyerekezo gitangwa na welding inverter ikora hamwe nibintu byiza nibibi cyangwa igice cyizunguruka.Ibi bivuze ko imigezi itemba inzira imwe hanyuma indi mugihe gitandukanye kugirango ijambo risimburana rikoreshwa.Gukomatanya ikintu kimwe cyiza nikintu kimwe kibi cyitwa cycle imwe.

Inshuro inzinguzingo irangiye mumasegonda imwe ivugwa nkinshuro.Mu Bwongereza inshuro zo guhinduranya amashanyarazi zitangwa numuyoboro wingenzi ni inzinguzingo 50 kumasegonda kandi bisobanurwa nka 50 Hertz (Hz)

Ibi bivuze ko impinduka zubu inshuro 100 buri segonda.Umubare wizunguruka kumasegonda (frequency) mumashini isanzwe utegekwa numuyoboro wingenzi uri mubwongereza ni 50Hz.

Birakwiye ko tumenya ko uko inshuro ziyongera ingaruka za magneti ziyongera kandi ibintu nka transformateur bigenda birushaho gukora neza.Kongera kandi inshuro yumurongo wo gusudira bikomeretsa arc, bitezimbere arc ituje kandi biganisha kumiterere yo gusudira cyane.
Ariko, ibi nibyukuri nkigihe gusudira muburyo bwa TIG hari izindi ngaruka kuri arc.

Umuyoboro wa AC sine urashobora kwanduzwa na oxyde ya oxyde yibikoresho bimwe na bimwe bikora nk'ikosora igabanya umuvuduko wa electron.Ibi bizwi nko gukosora arc kandi ingaruka zayo zitera igice cyizunguruka cyiza gukurwaho cyangwa kugorekwa.Ingaruka kuri zone ya weld ni imiterere ya arc idahwitse, kubura ibikorwa byogusukura no kwangirika kwa tungsten.

Arc gukosora igice cyiza cyinzira

Guhindura Ibiriho (AC) Waveforms

Umuhengeri

Umuhengeri wa sinusoidal ugizwe nibintu byiza byubaka kugeza hejuru ya zeru mbere yo gusubira kuri zeru (bakunze kwita umusozi).

Nkuko irenga zeru nubu igahindura icyerekezo yerekeza ku gaciro kayo keza mbere yuko izamuka kuri zeru (bakunze kwita ikibaya) uruziga rumwe rwarangiye.

Benshi muburyo bwa kera bwa TIG gusudira byari imashini zo mu bwoko bwa sine gusa.Hamwe niterambere ryibikoresho bigezweho byo gusudira hamwe nibikoresho bya elegitoroniki bigezweho byaje gutera imbere kugenzura no gushiraho imiterere ya AC ya flake ikoreshwa mu gusudira.

Umuhengeri

Hamwe niterambere rya AC / DC TIG yo gusudira inverter kugirango ushiremo ibikoresho bya elegitoroniki hashyizweho imashini yimashini ya kare.Bitewe nubu buryo bwa elegitoronike bugenzura umusaraba uva mubyiza ukajya mubi naho ubundi birashobora gukorwa hafi mukanya biganisha kumyuka ikora neza muri buri gice cyinzira bitewe nigihe kirekire ntarengwa.

 

Gukoresha neza imbaraga za magnetique yumurima wabitswe birema imiterere yumurongo uri hafi ya kare.Igenzura ryambere rya elegitoroniki yamashanyarazi ryemerera kugenzura 'kwaduka kwaduka'.Sisitemu yemerera kugenzura ibyiza (gusukura) nibibi (penetration) igice cyinzira.

Imiterere iringaniye yaba ingana + nziza kandi itari nziza igice cyizunguruka gitanga imiterere ihamye.

Ibibazo bishobora guhura nabyo ni uko iyo isuku imaze kuba mugihe kitarenze igice cyiza cyigihe cyigihe noneho bimwe mubice byinzira nziza ntibitanga umusaruro kandi birashobora no kwangiza kwangirika kwa electrode kubera ubushyuhe bwinshi.Nyamara, ubu bwoko bwimashini nabwo bwaba bufite uburimbane butuma igihe cyigice cyiza cyizenguruka gitandukana mugihe cyizunguruka.

 

Kwinjira cyane

Ibi birashobora kugerwaho ushyira igenzura kumwanya uzafasha umwanya munini wo kumara igice cyizengurutse cyerekeranye nigice cyiza.Ibi bizemerera imiyoboro ihanitse gukoreshwa hamwe na electrode ntoya nkibindi

yubushyuhe buri mubyiza (akazi).Ubwiyongere bwubushyuhe nabwo butera kwinjira cyane mugihe cyo gusudira kumuvuduko umwe wurugendo nuburyo buringaniye.
Kugabanuka kwubushuhe bwibasiwe na zone no kugoreka gake kubera arc ndende.

 

Isuku ntarengwa

Ibi birashobora kugerwaho mugushira igenzura kumwanya uzafasha umwanya munini wo kumara igice cyiza cyerekeranye nigice cyiza.Ibi bizemerera gukora isuku cyane ikoreshwa.Twabibutsa ko hari igihe cyiza cyo gukora isuku nyuma yigihe kinini kidashobora kubaho kandi amahirwe yo kwangirika kuri electrode ni menshi.Ingaruka kuri arc nugutanga pisine yagutse isukuye hamwe na enterineti.