Ukuwelda kwe-MIG, njengayo nayiphi na enye inkqubo, kuthatha ukuziqhelanisa nokuphucula izakhono zakho. Kwabo batsha kuyo, ukwakha ulwazi olusisiseko kunokuthatha umsebenzi wakho we-MIG welding ukuya kwinqanaba elilandelayo. Okanye ukuba ubukhe wawelda kangangexesha elithile, akukhe kube buhlungu ukuba nento yokuhlaziya. Qwalasela le mibuzo ibuzwa rhoqo, kunye neempendulo zayo, njengeengcebiso zokukukhokela.
1. Yiyiphi i-drive roll ekufuneka ndiyisebenzise, kwaye ndiyibeka njani i-tension?
Ubungakanani bocingo lwe-welding kunye nohlobo lumisela i-drive roll ukufumana i-wire feeding egudileyo, engaguqukiyo. Kukho ukhetho oluthathu oluqhelekileyo: i-V-knurled, i-U-groove kunye ne-V-groove.
Dibanisa igesi- okanye iingcingo self-ikhuselo kunye V-knurled drive rolls. Ezi ngcingo ze-welding zithambile ngenxa yoyilo lwazo lwe-tubular; amazinyo kwi-drive rolls abambe ucingo kwaye alutyhale nge-feeder drive. Sebenzisa i-U-groove drive rolls ukondla i-aluminium welding wire. Ukumila kwezi rolls drive kuthintela marring olu cingo luthambileyo. I-V-groove drive rolls lolona khetho lulungileyo locingo oluqinileyo.
Ukuseta uxinzelelo lwe-drive roll, qala ngokukhulula iiroli zokuqhuba. Yandisa istres kancinane ngelixa usondla ucingo kwisandla sakho seglavu. Qhubekeka de kube ukukruneka kube sisiqingatha somjiko ogqithileyo wecala lokutyibilika kocingo. Ngethuba lenkqubo, gcina umpu ngokuthe ngqo ngangokunokwenzeka ukuze ugweme i-kinking ikhebula, enokukhokelela ekutyaleni ucingo olubi.
Ukulandela ezinye iindlela eziphambili eziphambili ezinxulumene ne-welding wire, i-drive rolls kunye ne-shielding gas inokunceda ukuqinisekisa iziphumo ezilungileyo kwinkqubo ye-MIG ye-welding.
2. Ndizifumana njani ezona ziphumo zingcono kucingo lwe-welding lwe-MIG?
Iingcingo zokudibanisa i-MIG ziyahluka kwiimpawu zabo kunye neeparitha ze-welding. Soloko ujonga i-spec yocingo okanye icwecwe ledatha ukufumanisa ukuba yeyiphi i-amperage, amandla ombane kunye nesantya sokutya kweengcingo ngumenzi wesinyithi esicebisayo. Amaphepha athile aqhele ukuhanjiswa kunye nocingo lwe-welding, okanye ungazikhuphela kwiwebhusayithi yomenzi wesinyithi. La maphepha nawo abonelela ngeemfuno zegesi ezikhuselayo, kunye nomgama wokuqhagamshelana nomsebenzi (CTWD) kunye nolwandiso lwe-wire welding okanye iingcebiso zokunamathela.
Ukunamathela kubaluleke kakhulu ekufumaneni iziphumo ezizezona zilungileyo. Ixesha elide kakhulu lokuncamathela lidala intsimbi ebandayo, yehlise i-amperage kwaye icuthe ukungena ngokudibeneyo. Isincamathelisi esifutshane sikholisa ukubonelela nge-arc ezinzile kunye nokungena okungcono kwe-voltage ephantsi. Njengomthetho wobhontsi, obona bude bugqwesileyo bobona bufutshane buvunyelweyo kwisicelo.
Ukugcinwa ngokufanelekileyo kweengcingo ze-welding kunye nokuphatha kubalulekile kwiziphumo ezilungileyo ze-MIG. Gcina i-spool kwindawo eyomileyo, njengoko ukufuma kunokonakalisa ucingo kwaye kunokukhokelela ekuqhekekeni okubangelwa yi-hydrogen. Sebenzisa iiglavu xa uphethe ucingo ukuze ulukhusele kubumanzi okanye kukungcola ezandleni zakho. Ukuba ucingo lukwi-fieder, kodwa alusebenzi, gquma i-spool okanye uyisuse kwaye uyibeke kwingxowa yeplastiki ecocekileyo.
3. Yeyiphi ikhefu loqhagamshelwano ekufuneka ndiyisebenzise?
I-recess ye-tip yoqhagamshelwano, okanye indawo ye-tip yoqhagamshelwano ngaphakathi kwe-MIG welding nozzle, ixhomekeke kwimodi ye-welding, i-welding wire, isicelo kunye negesi yokukhusela oyisebenzisayo. Ngokubanzi, njengoko ukonyuka kwangoku, ikhefu lencam yoqhagamshelwano kufuneka linyuke. Nazi ezinye iingcebiso.
I-1/8- okanye i-1/4-intshi yekhefu isebenza kakuhle kwi-welding enkulu kune-200 amps kwi-spray okanye i-high-current pulse welding, xa usebenzisa i-metal-cored wire kunye ne-argon-rich shielding gases. Ungasebenzisa i-wire stickout ye-1/2 ukuya kwi-3/4 intshi kwezi meko.
Gcina incam yakho yoqhagamshelwano igungxulwa nombhobho xa uwelda ngaphantsi kwee-amps ezingama-200 kwisekethe emfutshane okanye kwiimowudi ze-pulse zangoku. A 1/4- ukuya 1/2-intshi ngocingo stickout kucetyiswa. Kwi-intshi ye-1/4-intshi ephuma kwisiphaluka esifutshane, ngokukodwa, ikuvumela ukuba udibanise kwizinto ezinqabileyo ezinomngcipheko omncinci wokutshisa okanye ukulwa.
Xa udibanisa amajoyinti okunzima ukufikelela kuwo kwaye ngaphantsi kwama-amps angama-200, unokwandisa i-intshi yoqhagamshelwano nge-1/8 intshi ukusuka kwi-nozzle kwaye usebenzise i-1/4-intshi yokunamathela. Olu lungelelwaniso luvumela ukufikelela okukhulu kumalunga okunzima ukufikelela kuwo, kwaye kusebenza kakuhle kwisiphaluka esifutshane okanye kwiimowudi ze-pulse zangoku.
Khumbula, ikhefu elifanelekileyo lingundoqo ekunciphiseni ithuba le-porosity, ukungena ngokwaneleyo kunye nokutshisa kunye nokunciphisa ukutshiza.
Indawo yokuphumla yencam yoqhagamshelwano iyahluka ngokwesicelo. Umgaqo jikelele: Njengoko unyuka ngoku, ikhefu kufuneka linyuke.
4. Yeyiphi igesi ekhuselayo ilungele i-MIG yam yocingo lokuwelda?
Irhasi yokukhusela oyikhethayo ixhomekeke kucingo kunye nesicelo. I-CO2 ibonelela ngokungena okulungileyo xa udibanisa imathiriyeli etyebileyo, kwaye ungayisebenzisa kwizinto ezibhityileyo kuba ithanda ukubaleka, nto leyo enciphisa umngcipheko wokutsha. Ukungena ngakumbi kwe-weld kunye nemveliso ephezulu, sebenzisa i-75 yepesenti ye-argon / i-25 yepesenti ye-CO2 yomxube wegesi. Le ndibaniselwano ikwavelisa i-spatter encinci kune-CO2 ngoko ke kuncinci ukucocwa kwe-post-weld.
Sebenzisa i-100 yepesenti ye-CO2 yokukhusela igesi okanye i-75 yepesenti ye-CO2 / 25 yepesenti ye-argon mix ngokudibanisa ne-carbon steel wire solid. I-aluminium welding wire ifuna i-argon yokukhusela igesi, ngelixa ucingo lwensimbi engenasici lusebenza kakuhle nge-tri-mix ye-helium, i-argon kunye ne-CO2. Ngalo lonke ixesha bhekisa kwi-spec sheet yocingo malunga nezindululo.
5. Yeyiphi eyona ndlela yokulawula i-weld puddle yam?
Kuzo zonke izikhundla, kungcono ukugcina ucingo lwe-welding lujoliswe kwicala eliphambili le-weld puddle. Ukuba i-weld iphuma kwindawo (ethe nkqo, ethe tyaba okanye ngaphezulu), ukugcina i-weld puddle encinci kunika olona lawulo lungcono. Kwakhona sebenzisa eyona dayamitha yocingo incinci eya kuhlala izalise ijoyini yeweld ngokwaneleyo.
Unokulinganisa igalelo lobushushu kunye nesantya sokuhamba nge-weld bead eveliswe kwaye uhlengahlengise ngokufanelekileyo ukuze ufumane ulawulo olungcono kunye neziphumo ezingcono. Umzekelo, ukuba uvelisa i-weld bead ede kakhulu kwaye i-skinny, ibonisa ukuba igalelo lokushisa liphantsi kakhulu kunye / okanye isantya sakho sokuhamba sikhawuleza kakhulu. Iso elisicaba, elibanzi licebisa ubushushu obuphezulu kakhulu kunye/okanye ukucotha kakhulu kwezantya zokuhamba. Lungisa iiparamitha zakho kunye nobuchule ngokufanelekileyo ukufezekisa i-weld efanelekileyo, enesithsaba esincinci esichukumisa nje isinyithi esijikelezileyo.
Ezi mpendulo kwimibuzo esoloko ibuzwa zichaphazela kuphela iindlela ezimbalwa ze-MIG zokuwelda. Ngalo lonke ixesha ulandela iinkqubo zakho ze-welding ukuze ufumane iziphumo ezilungileyo. Kwakhona, izixhobo ezininzi zokuwelda kunye nabavelisi bengcingo banamanani enkxaso yobugcisa ukunxibelelana nemibuzo. Bangasebenza njengomthombo obalaseleyo kuwe.
Ixesha lokuposa: Jan-02-2023
