I-Welding ithetha izinto zokuwelda phantsi kweemeko ezichaziweyo zokwakhiwa kwelungu ngokweemfuno zoyilo, kunye nokukwazi ukuhlangabezana neemfuno zenkonzo echazwe kwangaphambili.Ngokusebenzisa izinto ze-welding, i-welding, uhlobo lwecandelo kunye neemfuno zokusetyenziswa ezichaphazela izinto ezine.

I-welding yentsimbi ephantsi yekhabhoni
Ngenxa yesiqulatho sekhabhoni yentsimbi yekhabhoni ephantsi (umzekelo: umbhobho wentsimbi yekhabhoni), imanganese, umxholo wesilicon ungaphantsi, ngoko ngokuqhelekileyo awuyi kuba ne-welding enzulu yokucima izicubu eziqinileyo okanye izicubu.Ikhabhoni ephantsi intsimbi weld joints iplastiki kunye nokuqina impembelelo kulungile, welding, ngokubanzi ngaphandle preheating, ukulawula ubushushu kunye nobushushu phakathi umaleko, usebenzisa unyango ubushushu post-weld musa ukuphucula umbutho, yonke inkqubo akufuneki athathe amanyathelo ukuwelda inkqubo ekhethekileyo, ukuwelda.

Medium carbon steel welding
I-Carbon mass fraction ye-0.25% ~ 0.60% yentsimbi ye-carbon ephakathi.Xa iqhezu lobunzima bekhabhoni kunye nemanganese umxholo ophantse ube yi-0.25% ungekho phezulu, ukuwelda okuhle.Ngokunyuka komxholo wekhabhoni, ukuwelda kwehle kancinci kancinci.Ukuba umxholo carbon imalunga 0.45%, lo gama isekelwe phezu ukuwelda ethambileyo inkqubo welding intsimbi esetyenziswa xa kwindawo echaphazelekayo ubushushu kunokuvelisa martensite brittle, lula ukuqhekeka, ukuba ukubunjwa kokuqhekeka abandayo.Xa i-welding, isixa sezinto ezisisiseko siyanyibilika kwi-weld, i-weld ukwenzela ukuba umxholo wekhabhoni unyuke, ukukhuthaza ukuqhekeka kwe-thermal kwi-weld, ngakumbi xa ulawulo olungqongqo lokungcola kwesulfure, kunokwenzeka ngakumbi.Olu qhekeko lunovakalelo ngakumbi kwi-crater ekusasazweni kobushushu kwi-weld cracking kunye ne-scaly so lines wavy perpendicular to weld.

High carbon steel welding
Xa umxholo wekhabhoni yentsimbi ephezulu yekhabhoni ingaphezulu kwe-0.60%, ukuqina, ukuwelda uvakalelo lwe-crack emva kokuthambekela kukhulu kwaye ngenxa yoko ukuwelda amahlwempu, ayinakusetyenziswa ekwenzeni izakhiwo ezidityanisiweyo.Kufuneka isetyenziswe ngokuqhelekileyo kukwenziwa kobulukhuni okanye ukuqhawuka kwamalungu kunye namacandelo, umsebenzi we-welding ubukhulu becala ukulungiswa kwe-welding.Ngenxa yamandla aphezulu e-carbon steel amandla amaninzi kwi-675MPa okanye ngaphezulu, ngoko imodeli ye-electrode eqhelekileyo E7015, E6015, ingakhetha i-E5016, i-E5015 isakhiwo se-electrode xa amalungu ecela kakhulu.Ukongeza, sinokusebenzisa i-chrome-nickel austenitic steel electrode ukuwelda.Ngenxa yeendawo eziphezulu zekhabhoni zetsimbi ukwenzela ukufumana ubunzima obuphezulu kunye nokuxhatshazwa kokugqoka, izinto eziphathekayo ngokwazo zixhomekeke kunyango lobushushu, i-welding kufuneka ilandelwe ngokuyi-anneal ukuba ifakwe.Kufuneka kuqhutywe phambi kwe-welding preheat, ubushushu be-preheat ngokubanzi bungaphezulu kwe-250 ~ 350 ℃, inkqubo ye-welding kufuneka ingabi ngaphantsi kweqondo lokushisa lokubamba phakathi kokushisa kwangaphambili.Ukuwelda emva kwewelding kufuna ubushushu obucothayo bokuphola kwaye ngoko nangoko kwiziko kwi-650 ℃ kunyango lobushushu boxinzelelo.