I-MIG welding ibhekwa njengenye yezinqubo zokushisela ezilula ukufunda futhi iwusizo ezinhlobonhlobo zezicelo nezimboni. Njengoba intambo yokushisela ihlale idla ngesibhamu se-MIG phakathi nenqubo, ayidingi ukuma njalo, njengalapho kushiselwa induku. Umphumela uba isivinini sohambo esisheshayo kanye nokukhiqiza okukhulu.
Ukuguquguquka kanye nesivinini sokushisela kwe-MIG nakho kukwenza kube inketho enhle yokushisela okunezindawo zonke ezinsimbi ezihlukahlukene, okuhlanganisa nezinsimbi ezithambile nezingenasici, kuhlu olubanzi. Ngaphezu kwalokho, ikhiqiza i-weld ehlanzekile edinga ukuhlanzwa okuncane kunenduku noma i-flux-cored welding.
Ukuze kwandiswe izinzuzo ezinikezwa yile nqubo, kubalulekile ukukhetha isibhamu esilungile se-MIG somsebenzi. Eqinisweni, imininingwane yale mishini ingaba nomthelela omkhulu ekukhiqizeni, isikhathi sokuphumula, ikhwalithi yokushisela kanye nezindleko zokusebenza - kanye nokunethezeka kwabasebenza ngokushisela. Nakhu ukubheka izinhlobo ezahlukene zezibhamu ze-MIG kanye nezinye izici ezibalulekile okufanele uzicabangele lapho ukhetha.
Iyiphi i-amperage efanele?
Kubalulekile ukukhetha isibhamu se-MIG esinikeza isilinganiso esanele somjikelezo nomsebenzi womsebenzi ukuze kuvinjelwe ukushisa ngokweqile. Umjikelezo womsebenzi usho inombolo yamaminithi esikhathini esiyimizuzu eyi-10 lapho isibhamu singasebenza ngaso ngokugcwele ngaphandle kokushisisa ngokweqile. Isibonelo, umjikelezo womsebenzi ongamaphesenti angu-60 usho imizuzu eyisithupha yesikhathi esigcwele ngesikhathi esiyimizuzu eyi-10. Ngenxa yokuthi iningi lama-opharetha ama-welding alishisi amaphesenti angu-100 esikhathi, ngokuvamile kungenzeka ukusebenzisa isibhamu esine-amperage ephansi ngenqubo yokushisela ebiza esine-amperage ephezulu; izibhamu ezisezingeni eliphansi zivame ukuba zincane futhi kulula ukuzilawula, ngakho zikhululeke kakhudlwana ku-opharetha wokushisela.
Lapho uhlola amandla esibhamu, kubalulekile ukucabangela igesi evikelayo ezosetshenziswa. Izibhamu eziningi embonini ziyahlolwa futhi zilinganiselwe umjikelezo wemisebenzi ngokusho kokusebenza kwazo ngamaphesenti angu-100 CO2; le gesi evikelayo ijwayele ukugcina isibhamu sipholile ngesikhathi sokusebenza. Ngokuphambene, inhlanganisela yegesi exubile, njengamaphesenti angu-75 we-argon namaphesenti angu-25 we-CO2, yenza i-arc ishise futhi ngenxa yalokho ibangele ukuthi isibhamu sisebenze kakhulu, okugcina kunciphisa umjikelezo womsebenzi. Isibonelo, uma isibhamu silinganiselwe kumjikelezo womsebenzi wamaphesenti angu-100 (ngokusekelwe ekuhloleni okujwayelekile kwemboni ngamaphesenti angu-100 CO2), isilinganiso saso ngamagesi axubile sizoba ngaphansi. Kubalulekile ukunaka umjikelezo womsebenzi kanye nenhlanganisela yegesi evikelayo - uma isibhamu silinganiselwa kumaphesenti angu-60 kuphela womjikelezo womsebenzi nge-CO2, ukusetshenziswa kwamagesi axubile kuzobangela ukuthi isibhamu sisebenze kakhulu futhi singahlali isikhathi eside.
Amanzi - ngokumelene nomoya opholile
Ukukhetha isibhamu se-MIG esinikeza ukunethezeka okungcono kakhulu futhi esisebenza ekushiseni okupholile okuvunyelwe uhlelo lokusebenza kungasiza ekuthuthukiseni isikhathi se-arc-on kanye nokukhiqiza - futhi, ekugcineni, kwandise inzuzo yokusebenza kwe-welding.
Ukunquma phakathi kwesibhamu se-MIG samanzi noma esipholile kuncike kakhulu ekusetshenzisweni nasezimfuneko ze-amperage, okuthandwa ngu-opharetha wokushisela nokucatshangelwa kwezindleko.
Izicelo ezibandakanya i-welding sheet sheet imizuzu embalwa kuphela ihora ngalinye zinesidingo esincane sezinzuzo zesistimu yokupholisa ngamanzi. Ngakolunye uhlangothi, izitolo ezinemishini emile eshisela ngokuphindaphindiwe kuma-amps angu-600 cishe zizodinga isibhamu se-MIG esipholile ngamanzi ukuze zibambe ukushisa okukhiqizwa izinhlelo zokusebenza.
Isistimu yokushisela ye-MIG epholiswe ngamanzi iphampa isixazululo sokupholisa esisuka kuyunithi yerediyetha, ngokuvamile ehlanganiswe ngaphakathi noma eduze nomthombo wamandla, ngamapayipi angaphakathi kwenqwaba yekhebula, kanye nesibambo sesibhamu nentamo. Isipholile sibe sesibuyela kurediyetha, lapho isistimu edidayo ikhulula ukushisa okumuncwe into epholile. Umoya ozungezile kanye negesi evikelayo kuqhubekela phambili nokusakaza ukushisa okuvela ku-arc yokushisela.
Ngokuphambene, isistimu yokupholisa umoya incike kuphela emoyeni ozungezile kanye negesi evikelayo ukuze kuqedwe ukushisa okwandayo ngobude besekethe yokushisela. Lezi zinhlelo, ezisukela ku-150 kuya ku-600 amps, zisebenzisa i-copper cabling ewugqinsi kunezinhlelo ezipholiswa ngamanzi. Ngokuqhathanisa, izibhamu ezipholile ngamanzi zivela ku-300 kuya ku-600 amps.
Uhlelo ngalunye lunezinzuzo nezinkinga zalo. Izibhamu ezipholiswe ngamanzi zibiza kakhulu ngaphambili, futhi zingadinga ukunakekelwa okwengeziwe kanye nezindleko zokusebenza. Kodwa-ke, izibhamu ezipholiswe ngamanzi zingaba lula kakhulu futhi ziguquguquke kunezibhamu ezipholile emoyeni, ngakho-ke zinganikeza izinzuzo zokukhiqiza ngokunciphisa ukukhathala komsebenzisi. Kodwa ngenxa yokuthi izibhamu ezipholiswe ngamanzi zidinga imishini eyengeziwe, zingase zingasebenzi ezinhlelweni ezidinga ukuphatheka.
I-Heavy- against light-duty
Nakuba isibhamu esisezingeni eliphansi singafaneleka kwezinye izinhlelo zokusebenza, qiniseka ukuthi sinikeza amandla okushisela adingekayo emsebenzini. Isibhamu se-MIG esilula ngokuvamile siyisinqumo esingcono kakhulu sezinhlelo zokusebenza ezidinga izikhathi ezimfushane ze-arc-on, njengezingxenye zokunamathisela noma i-welding sheet metal. Izibhamu ze-light-duty ngokuvamile zihlinzeka ngomthamo wama-amps angu-100 kuya kwangu-300, futhi zivame ukuba zincane futhi zinesisindo esingaphansi kwezibhamu ezisindayo. Izibhamu eziningi ze-MIG ezisebenza ukukhanya zinezibambo ezincane, ezihlangene futhi, okuzenza zikhululeke kakhudlwana ku-opharetha wokushisela.
Izibhamu ze-MIG ezisebenza kancane zinikeza izici ezijwayelekile ngentengo ephansi. Basebenzisa izinto ezisetshenziswayo ezilula noma ezijwayelekile (imibhobho, amathiphu okuxhumana namakhanda okubamba), anesisindo esincane futhi angabizi kakhulu kunozakwabo abasebenza kanzima.
Impumuzo yezibhamu ezisebenza ngokukhanya ngokuvamile kwakhiwa ingxenye yerabha eguquguqukayo futhi, kwezinye izimo, ingase ingabi khona. Ngenxa yalokho, ukunakekelwa kufanele kuthathwe ukuvimbela i-kinking engase iphazamise ukuphakelwa kwezintambo nokugeleza kwegesi. Futhi qaphela, ukusebenza ngokweqile kwesibhamu se-MIG esisebenza ngokukhanya kungaholela ekuhlulekeni ngaphambi kwesikhathi, ngakho lolu hlobo lwesibhamu lungase lungafaneleki indawo enezinhlelo zokusebenza eziningi ezinezidingo ezihlukahlukene ze-amperage.
Ngakolunye uhlangothi lwe-spectrum, izibhamu ze-MIG ezisindayo ziyinketho engcono kakhulu yemisebenzi edinga izikhathi ezinde ze-arc-on noma amaphasi amaningi ezigabeni eziwugqinsi zezinto, kuhlanganisa nezinhlelo zokusebenza eziningi ezitholakala ekukhiqizweni kwemishini esindayo neminye imisebenzi yokushisela enenkani. Lezi zibhamu ngokuvamile zisukela ku-400 kuya ku-600 amps futhi zitholakala kumamodeli apholile emoyeni namanzi. Zivame ukuba nezibambo ezinkudlwana ukuze zifake izintambo ezinkulu ezidingekayo ukuze zilethe lawa ma-amperages aphezulu. Izibhamu zivamise ukusebenzisa izinto ezisetshenziswayo ezisindayo ezihamba phambili ezikwazi ukumelana nama-amperages aphezulu kanye nezikhathi ezinde ze-arc-on. Izintamo zivame ukuba zinde futhi, ukubeka ibanga elide phakathi komqhubi we-welding kanye nokukhishwa kokushisa okuphezulu okuvela ku-arc.
Izibhamu zokukhipha intuthu
Kwezinye izinhlelo zokusebenza nemisebenzi yokushisela, isibhamu esikhipha intuthu singaba inketho engcono kakhulu. Izindinganiso zomkhakha ezivela ku-Occupational Safety and Health Administration(OSHA) nezinye izindikimba ezilawula ukuphepha ezibeka imikhawulo evumelekile yokuchayeka yentuthu yokushisela nezinye izinhlayiya (okuhlanganisa i-chromium ene-hexavalent) aholele izinkampani eziningi ukuthi zenze ukutshalwa kwezimali. Ngokufanayo, izinkampani ezifuna ukuthuthukisa ukuphepha komqhubi we-welding futhi zihehe ama-opharetha ama-welding amasha emkhakheni zingase zifune ukucabangela lezi zibhamu, njengoba zingasiza ekudaleni indawo yokusebenza ekhanga kakhulu. Izibhamu zokukhipha isisi zitholakala ngama-amperage ngokuvamile asukela ku-300 kuya ku-600 amps, kanye nezitayela zekhebula ezihlukahlukene nemiklamo yokubamba. Njengazo zonke izinto zokushisela, zinezinzuzo kanye nokulinganiselwa kwazo, izinhlelo zokusebenza ezingcono kakhulu, izidingo zokunakekelwa nokunye. Inzuzo eyodwa ehlukile yokukhipha izibhamu ukuthi zisusa intuthu emthonjeni, zinciphisa inani elingena endaweni yokuphefumula esheshayo yomqhubi we-welding.
Inzuzo eyodwa ehlukile yokukhipha izibhamu ukuthi zisusa intuthu emthonjeni, zinciphisa inani elingena endaweni yokuphefumula esheshayo yomqhubi we-welding.
Izibhamu zokukhipha imfucumfucu zingakwazi, zihlangene nezinye izinto eziningi eziguquguqukayo emsebenzini wokushisela - ukukhetha izintambo zokushisela, izindlela ezithile zokudlulisa nezinqubo zokushisela, ukuziphatha kuka-opharetha welding kanye nokukhetha kwezinto eziyisisekelo - ukusiza izinkampani ukugcina ukuthobela imithetho yezokuphepha futhi zenze i-welding ehlanzekile, enethezeke kakhudlwana. imvelo.
Lezi zibhamu zisebenza ngokubamba intuthu ekhiqizwa inqubo yokushisela khona kanye emthonjeni, ngapha nangapha kwendawo yokushisela. Abakhiqizi abahlukahlukene banezindlela zobunikazi zokwenza izibhamu ukwenza lesi senzo kodwa, ezingeni eliyisisekelo, zonke zisebenza ngokufanayo: ngokugeleza okukhulu noma ukunyakaza kwezinto. Lokhu kunyakaza kwenzeka ngendlela ye-vacuum chamber emunca intuthu ngesibambo sesibhamu futhi ingene epayipini lesibhamu iye ethekwini lesistimu yokuhlunga (ngezinye izikhathi okubizwa ngokungakahleleki njengebhokisi le-vacuum).
Izibhamu zokukhipha intuthu zifaneleka kahle ezisetshenziswa ezisebenzisa intambo yokushisela eqinile, ene-flux-core noma yensimbi kanye naleyo eyenziwa ezindaweni ezivalekile. Lokhu kufaka phakathi, kodwa akugcini lapho, izicelo embonini yokwakha umkhumbi kanye nemishini esindayo, kanye nokukhiqiza nokukhiqiza okuvamile. Futhi zilungele ukushisela ezinsizeni zensimbi ethambile nekhabhoni, nasezinsizeni zensimbi engagqwali, njengoba le nto ikhiqiza amaleveli amakhulu e-chromium ene-hexavalent. Ngaphezu kwalokho, izibhamu zisebenza kahle ekusetshenzisweni okuphezulu kwe-amperage kanye nenani eliphezulu lokubeka imali.
Okunye okucatshangelwayo: Amakhebula nezibambo
Uma kuziwa ekukhetheni ikhebula, ukukhetha ikhebula elincane, elifushane nelilula kunawo wonke elikwazi ukuphatha i-amperage kunganikeza ukuguquguquka okukhulu, kwenze kube lula ukulawula isibhamu se-MIG futhi kuncishiswe imfuhlumfuhlu endaweni yokusebenza. Abakhiqizi banikeza izintambo zezimboni ezisukela ku-8 kuya ku-25 ubude ubude. Uma ikhebuli iba yinde, kulapho amathuba engeziwe ekwazi ukuboshelwa khona ezintweni ezikuseli yokushisela noma iboshwe phansi futhi iphazamise ukuphakelwa kwezintambo.
Kodwa-ke, ngezinye izikhathi ikhebula ende liyadingeka uma ingxenye eshiselwayo inkulu kakhulu noma uma abasebenza ngokushisela kufanele bazulazule emakhoneni noma phezu kwezinto ezifakiwe ukuze baqedele umsebenzi osuwenzile. Kulezi zimo, lapho o-opharetha behamba bebuyela emuva naphambili phakathi kwamabanga amade namafushane, intambo yekhoyili yensimbi yensimbi ingase ibe inketho engcono. Lolu hlobo lwekhebula alukhiki kalula njengezintambo ezijwayelekile zezimboni futhi lungahlinzeka ngokuphakelwa kwezintambo okushelelayo.
Isibambo sesibhamu se-MIG kanye nomklamo wentamo kungaba nomthelela ukuthi u-opharetha angashisela isikhathi esingakanani ngaphandle kokukhathala. Izinketho zokubamba zihlanganisa okuqondile noma okugobile, kokubili okuza ngezitayela eziphuma umoya; ukukhetha kuvame ukuncika ekuthandweni komqhubi we-welding.
Isibambo esiqondile siyisinqumo esingcono kakhulu sama-opharetha abakhetha i-trigger phezulu, njengoba izibambo ezigobile ingxenye enkulu azinikezi le nketho. Ngesibambo esiqondile, u-opharetha angakwazi ukuzungeza intamo ukuze abeke i-trigger phezulu noma phansi.
Isiphetho
Ekugcineni, ukunciphisa ukukhathala, ukunciphisa ukunyakaza okuphindaphindayo kanye nokunciphisa ukucindezeleka okuphelele ngokomzimba yizici ezibalulekile ezifaka isandla endaweni ephephile, ekhululekile futhi ekhiqiza kakhulu. Ukukhetha isibhamu se-MIG esinikeza ukunethezeka okungcono kakhulu futhi esisebenza ekushiseni okupholile okuvunyelwe uhlelo lokusebenza kungasiza ekuthuthukiseni isikhathi se-arc-on kanye nokukhiqiza - futhi, ekugcineni, kwandise inzuzo yokusebenza kwe-welding.
Isikhathi sokuthumela: Jan-01-2023
