Xa kudityaniswa, injongo kukudala umanyano oluqinileyo nolungenamthungo phakathi kweziqwenga ezibini zesinyithi. Ukudityaniswa kwe-MIG yinkqubo eguquguqukayo enokusetyenziselwa ukudityaniswa kweentsimbi ezahlukeneyo. Ukudityaniswa kwe-MIG yinkqubo entle yokudibanisa izinto. Nangona kunjalo, ukuba kusetyenziswa useto olungalunganga, iimbobo zingafakwa kwi-weld. Oku kunokubangela iingxaki ngamandla kunye nokuthembeka kwe-weld.
Kule ngxelo, siza kujonga ezinye zezizathu zokuba kubekho imingxunya kwi-MIG welding kunye nendlela yokuyithintela.
Yintoni ebangela ukubola kwe-MIG Welding?
I-Porosity luhlobo lwesiphene sokuwelda esinokwenzeka kwii-welds. Sibonakala njengemingxunya emincinci kwi-weld kwaye singenza buthathaka unxibelelwano phakathi kweziqwenga ezibini zesinyithi. I-Porosity inokubangelwa zizinto ezahlukeneyo, kuquka:
1) Ukuhlanganiswa okungaphelelanga
Oku kwenzeka xa i-welding arc inganyibilikisi ngokupheleleyo isiseko sesinyithi kunye nezinto zokuzalisa. Oku kunokwenzeka ukuba umatshini wokuwelda awumiselwanga kwi-amperage echanekileyo okanye ukuba itotshi yokuwelda ayibanjwanga kufutshane nesinyithi.
2) Ukungabikho kwegesi efunekayo
Ukuwelda kwe-MIG kusebenzisa igesi yokukhusela ukuwelda kwioksijini nakwezinye izinto ezingcolisayo. Ukuba ukuhamba kwegesi kuphantsi kakhulu, kunokwenzeka ukuba kubekho ukuvuleka. Oku kunokwenzeka ukuba umlawuli wegesi akamiselwanga ngokuchanekileyo, okanye ukuba kukho ukuvuza kwipayipi yegesi.
3) Ukuvalelwa kwegesi
Esinye isizathu sokuba kubekho imingxunya kukuvalelwa kwegesi. Oku kwenzeka xa amaqamza egesi evaleleke kwidama lokuwelda. Oku kunokwenzeka ukuba itotshi yokuwelda ayibanjwanga kwi-engile echanekileyo okanye ukuba kukho igesi yokukhusela eninzi.
4) Ukungcola kunye nezinto ezingcolisayo
Ukuqhekeka kwesinyithi okanye izinto zokuzalisa kungabangelwa kukungcoliswa kwesinyithi esisisiseko okanye izinto zokuzalisa. Ukungcola, umhlwa, ipeyinti, kunye nezinye izinto ezingcolisayo nazo zinokubangela ukuqhekeka kwesinyithi. Oku kunokwenzeka ukuba isinyithi asicocekanga ngaphambi kokuwelda, okanye ukuba kukho umhlwa okanye ipeyinti kumphezulu. Ezi zinto zingcolisayo zinokuthintela ukuqhekeka kwesinyithi ekudibaneni kakuhle nesinyithi.
5) Igesi yokukhusela enganeleyo
Esinye isizathu sokuba kubekho ukuvuleka kwegesi kukunganeli kwegesi yokukhusela. Oku kunokwenzeka ukuba igesi engalunganga isetyenziswe kwinkqubo yokuwelda okanye ukuba ukuhamba kwegesi akumiswanga ngokuchanekileyo.
Ungakuthintela njani ukuba kubekho ukubola ngexesha lenkqubo yokuwelda ye-MIG?
Kukho izinto ezimbalwa onokuzenza ukuze uthintele ukubola kwe-porosity ngexesha lenkqubo yokuwelda ye-MIG:
1. Sebenzisa useto oluchanekileyo: Qinisekisa ukuba usebenzisa useto oluchanekileyo kumatshini wakho wokuwelda. I-amperage kunye ne-voltage kufuneka zibekwe ngokwemiyalelo yomenzi.
2. Sebenzisa igesi echanekileyo: Qiniseka ukuba usebenzisa igesi echanekileyo kwinkqubo yakho yokuwelda. I-Argon idla ngokusetyenziselwa ukuwelda nge-MIG.
3. Ukuhamba kwegesi: Misela izinga lokuhamba kwegesi ngokwemiyalelo yomenzi. Igesi eninzi kakhulu okanye encinci kakhulu inokubangela ukubola.
4. Gcina itotshi ikwi-engile echanekileyo: Qiniseka ukuba ubamba itotshi kwi-engile echanekileyo ukuze ungabanjwa yigesi. Itotshi mayibanjwe kwi-engile yeedigri ezili-10 ukuya kwezili-15 ukusuka kumphezulu wesinyithi.
5. Sebenzisa isinyithi esicocekileyo: Qiniseka ukuba usebenzisa isinyithi esicocekileyo nesingenangcoliso kwi-weld yakho. Naluphi na uthuli, umhlwa, okanye ipeyinti ephezu komphezulu inokubangela ukubola.
6. Ukutshixa kwindawo enomoya ococekileyo: Ukutshixa kwindawo enomoya ococekileyo ukuze kuthintelwe ukubanjwa yigesi. Igesi yokukhusela ingabanjwa kwiindawo ezivalekileyo.
Ukuqhekeka kwe-porosity kunokuthintelwa ngokulandela la macebiso. Ngokusebenzisa useto olufanelekileyo kunye nokuwelda kwindawo enomoya ococekileyo, ungayiphepha le ngxaki.
Iindlela Eziqhelekileyo Zokulungisa Ii-Porosity Welds
Kukho iindlela ezimbalwa eziqhelekileyo zokulungisa ii-welds ezichaphazeleke yi-porosity:
1. Ukuwelda kwakhona: Enye indlela eqhelekileyo kukuwelda kwakhona indawo echaphazelekayo. Oku kungenziwa ngokuwelda phezu kwendawo echaphazelekayo ene-amperage ephezulu.
2. Iiplagi zePorosity: Elinye iyeza eliqhelekileyo kukusebenzisa iiplagi zePorosity. Ezi ziidiski ezincinci zesinyithi ezibekwa phezu kwemingxunya kwi-weld. Iiplagi zePorosity zingathengwa kwiivenkile ezininzi ezithengisa izinto zokuwelda.
3. Ukusila: Enye indlela kukusila indawo echaphazelekayo uze uyitshise kwakhona. Oku kungenziwa nge-grinder ephathwa ngesandla okanye nge-engile grinder.
4. Ucingo lokuwelda: Elinye iyeza kukusebenzisa ucingo lokuwelda. Olu lucingo olubhityileyo olusetyenziselwa ukugcwalisa imingxunya kwi-weld. Ucingo lokuwelda lungathengwa kwiivenkile ezininzi ezithengisa izinto zokuwelda.
Ukuqhekeka kweendawo ezivulekileyo kungalungiswa ngokusebenzisa enye yezi ndlela ziqhelekileyo. Ngokuyitshixa kwakhona indawo okanye ngokusebenzisa iiplagi zokuqhekeka kweendawo ezivulekileyo, ungayilungisa ingxaki.
Ixesha lokuthumela: Disemba-23-2022