Ububabare, ubuvumo bwo mu bwoko bwa cavitité buterwa no kwinjiza gaze mugihe cyo gukomera, ni inenge isanzwe ariko itoroshye mugusudira MIG hamwe nimpamvu nyinshi. Irashobora kugaragara muri kimwe cya kabiri cyikora cyangwa cyimashini kandi gisaba gukuraho no gukora muribintu byombi - biganisha ku gihe cyo hasi no kongera ibiciro.
Impamvu nyamukuru itera ubwoba mu gusudira ibyuma ni azote (N2), igira uruhare muri pisine. Iyo pisine isukuye, ubukonje bwa N2 buragabanuka cyane kandi N2 isohoka mubyuma bishongeshejwe, ikora ibibyimba (pore). Mu gusudira / galvanneal gusudira, zinc zumuyaga zirashobora gushirwa muri pisine yo gusudira, kandi niba ntamwanya uhagije wo guhunga mbere yuko pisine ikomera, ikora ububobere. Kuri gusudira aluminium, porosity zose ziterwa na hydrogen (H2), kimwe na N2 ikora mubyuma.
Kuzunguruka gusudira birashobora kugaragara hanze cyangwa imbere (bikunze kwitwa sub-surface porosity). Irashobora kandi gutera imbere kumwanya umwe kuri weld cyangwa muburebure bwose, bikavamo gusudira intege nke.
Kumenya kumenya impamvu zimwe zingenzi zitera ubwoba nuburyo bwo kubikemura byihuse birashobora gufasha kuzamura ireme, umusaruro numurongo wo hasi.
Igipfukisho cya gaz gikingira nabi
Gukingira gaze nabi ni yo mpamvu itera gusudira cyane, kuko ituma imyuka yo mu kirere (N2 na H2) yanduza pisine. Kubura ubwishingizi bukwiye birashobora kubaho kubwimpamvu nyinshi, zirimo ariko ntizigarukira gusa ku gipimo gike cyo gukingira gaze, gutemba mu muyoboro wa gaze, cyangwa gutembera kwinshi mu kirere muri selire. Umuvuduko wurugendo wihuta cyane urashobora kandi kuba nyirabayazana.
Niba umukoresha akeka ko umuvuduko muke utera ikibazo, gerageza uhindure metero ya gazi kugirango urebe ko igipimo gihagije. Mugihe ukoresheje uburyo bwo kohereza spray, kurugero, metero kibe 35 kugeza kuri 50 kumasaha (cfh) igomba kuba ihagije. Gusudira kuri amperage zisaba kwiyongera k'umuvuduko, ariko ni ngombwa kudashyiraho igipimo kiri hejuru cyane. Ibi birashobora kuvamo imvururu mubishushanyo mbonera byimbunda bihagarika gukingira gaze.
Ni ngombwa kumenya ko imbunda zateguwe zitandukanye zifite imiterere ya gazi zitandukanye (reba ingero ebyiri hepfo). "Ikibanza cyiza" cyumuvuduko wa gazi kubishushanyo byo hejuru ni binini cyane kurenza ibishushanyo mbonera. Nibintu injeniyeri yo gusudira akeneye gusuzuma mugihe washyizeho selile yo gusudira.
Igishushanyo cya 1 cyerekana gazi itemba neza kuri nozzle
Igishushanyo cya 2 cyerekana gazi ihindagurika kuri nozzle.
Reba kandi ibyangiritse kuri gaze ya gaze, fitingi na connexion, hamwe na O-impeta kumashanyarazi yimbunda yo gusudira MIG. Simbuza ibikenewe.
Mugihe ukoresheje abafana mugukonjesha abakora cyangwa ibice muri selire yo gusudira, witondere ko biterekejwe ahantu ho gusudira aho bishobora guhungabanya gaze. Shira ecran muri selire yo gusudira kugirango wirinde umwuka wo hanze.
Ongera ukore kuri porogaramu muri porogaramu za robo kugirango umenye neza ko hari intera ikwiye-ku-kazi, ubusanzwe ½ kugeza 3/4 cm, bitewe n'uburebure bwifuzwa bwa arc.
Ubwanyuma, umuvuduko wurugendo rwihuta niba ububobere bukomeje cyangwa ukabaza MIG utanga imbunda kubintu bitandukanye byimbere-hamwe na gaze nziza ya gaze
Ibyuma Byanduye
Kwanduza ibyuma shingiro nindi mpamvu itera ubwoba - kuva kumavuta hamwe namavuta kugeza ku ruganda hamwe n'ingese. Ubushuhe burashobora kandi gushigikira uku guhagarara, cyane cyane muri welding ya aluminium. Ubu bwoko bwanduye mubisanzwe biganisha kumasoko yo hanze agaragara kubakoresha. Ibyuma bya galvanised bikunda kwibasirwa nubutaka.
Kurwanya ububobere bwo hanze, menya neza koza neza ibikoresho fatizo mbere yo gusudira hanyuma utekereze gukoresha insinga yo gusudira ibyuma. Ubu bwoko bwinsinga bufite urwego rwinshi rwa deoxidizeri kuruta insinga zikomeye, bityo rero irashobora kwihanganira ibintu byose byanduye bisigaye kubikoresho fatizo. Buri gihe ujye ubika izi nizindi nsinga ahantu humye, hasukuye ubushyuhe busa cyangwa burenze gato kurenza igihingwa. Gukora ibi bizafasha kugabanya ubukonje bushobora kwinjiza ubuhehere muri pisine kandi bigatera ubwoba. Ntukabike insinga mububiko bukonje cyangwa hanze.
Ububabare, ubuvumo bwo mu bwoko bwa cavitité buterwa no kwinjiza gaze mugihe cyo gukomera, ni inenge isanzwe ariko itoroshye mugusudira MIG hamwe nimpamvu nyinshi.
Iyo gusudira ibyuma bya galvanis, zinc ihumeka mubushyuhe buke ugereranije nicyuma gishonga, kandi umuvuduko wurugendo rwihuta ukunda gutuma pisine isudira ikonja vuba. Ibi birashobora gutega imyuka ya zinc mubyuma, bikavamo ubwoba. Kurwanya iki kibazo ukurikirana umuvuduko wurugendo. Na none, tekereza kubintu byabugenewe (flux formula) insinga zifite amabara atera ibyuma bya zinc guhunga pisine yo gusudira.
Ifunze na / cyangwa Utuzu twa Nozzles
Gufunga no / cyangwa kudashyira mu majwi birashobora no gutera ubwoba. Gusudira gusudira birashobora kwiyubaka muri nozzle no hejuru yisonga ryitumanaho hamwe na diffuzeri biganisha ku gukingira gazi gukingira cyangwa kuyitera imivurungano. Ibihe byombi bisiga pisine hamwe nuburinzi budahagije.
Guteranya ibi bintu ni nozzle ni ntoya cyane kubisabwa kandi ikunda kuba nini kandi yihuta. Utuzu duto dushobora gutanga uburyo bwiza bwo kugera hamwe, ariko kandi bikabuza gutembera gaze kubera agace gato kambukiranya ibice byemerewe gutemba. Buri gihe ujye uzirikana impinduka zimpanuro zijyanye no guhuza nozzle (cyangwa ikiruhuko), kuko ibi bishobora kuba ikindi kintu kigira ingaruka mukurinda imyuka ya gaze hamwe nubushake hamwe no guhitamo kwawe.
Hamwe nibitekerezo, menya neza ko nozzle ari nini bihagije kubisabwa. Mubisanzwe, porogaramu zifite imashini nini yo gusudira ukoresheje ingano nini ya wire bisaba nozzle ifite ubunini bunini.
Muri porogaramu yo gusudira igice cyikora, genzura buri gihe kugenzura gusudira muri nozzle hanyuma ukureho ukoresheje pompe yo gusudira (welpers) cyangwa gusimbuza nozzle nibiba ngombwa. Muri iri genzura, wemeze ko inama yo guhuza imeze neza kandi ko diffuzeri ya gaze ifite ibyambu bya gaze neza. Abakoresha barashobora kandi gukoresha anti-spatter, ariko bagomba kwitondera kutinjiza nozzle mu kigo kure cyane cyangwa igihe kirekire, kubera ko urugero rwinshi rw’urwo ruganda rushobora kwanduza gaze ikingira no kwangiza insina.
Mubikorwa byo gusudira bya robo, shora muri sitasiyo ya nozzle cyangwa reamer kugirango urwanye spatter. Iyi peripheri isukura nozzle na diffuser mugihe cyo kuruhuka bisanzwe mubikorwa kugirango bitagira ingaruka kumwanya wigihe. Sitasiyo ya Nozzle igenewe gukora ifatanije na anti-spatter sprayer, ikoresha ikote rito ryikigo mubice byimbere. Amazi menshi cyane cyangwa make anti-spatter fluid ashobora kuvamo kwiyongera. Kwiyongera mubyuka bihumeka mugikorwa cyo koza nozzle birashobora kandi gufasha mugukuraho ibintu bitakoreshejwe neza.
Kubungabunga ubuziranenge n'umusaruro
Mu kwitondera gukurikirana inzira yo gusudira no kumenya ibitera ubwoba, biroroshye gushyira mubikorwa ibisubizo. Kubikora birashobora gufasha kwemeza arc-igihe kinini, ibisubizo byiza nibindi bice byiza bigenda byinjira mubikorwa.
Igihe cyo kohereza: Gashyantare-02-2020
