Zeziphi iziphene ezinokuthi zenzeke ngexesha le-welding ye-304 yentsimbi engenasici?

Ngexesha lokudityaniswa kwe-welding ye-304 yentsimbi engenasici, iziphene ezininzi zinokwenzeka.Ezinye iziphene eziqhelekileyo ziquka:

1.I-Porosity:

I-Porosity ibhekisela kubukho be-voids encinci okanye iipokethi zegesi kwizinto ezidibeneyo.Inokubangelwa zizinto ezininzi ezifana nokungonelanga kokhuselo lwegesi, izinga lokuhamba kwerhasi engafanelekanga, isiseko sesinyithi esingcolileyo, okanye ubuchule bokuwelda obungafanelekanga.I-Porosity inokwenza buthathaka i-weld kwaye inciphise ukuxhathisa kwayo kokuhlwa.

2.Ukuqhekeka:

Iintanda zingenzeka kwi-weld okanye kwindawo echatshazelwe bubushushu (HAZ).Ukuqhekeka kunokubangelwa yizinto ezahlukeneyo ezifana nokufakwa kobushushu obuphezulu, ukupholisa ngokukhawuleza, ukufudumeza okungafanelekanga okanye ukulawula ukushisa kwe-interpass, uxinzelelo olugqithiseleyo lokushiyeka, okanye ubukho bokungcola kwisiseko sesinyithi.Iintanda zinokubeka emngciphekweni ukunyaniseka kwesakhiwo se-weld.

3.Ukudibanisa okungaphelelanga okanye ukungena okungaphelelanga:

Ukudityaniswa okungaphelelanga kwenzeka xa isinyithi sokuzalisa singadibanisi ngokupheleleyo nesiseko sentsimbi okanye amaso eweld akufuphi.Ukungena okungaphelelanga kubhekisela kwimeko apho i-weld ingangeni kuyo yonke i-thickness of joint.Ezi ziphene zinokubangelwa kukungena ngokwaneleyo kobushushu, ubuchule be-welding obungachanekanga, okanye ukulungiselela ngokungafanelekanga ngokudibeneyo.

4.Ukunciphisa:

I-Undercutting kukwakheka kwegroove okanye ukudakumba ecaleni kwenzwane ye-weld okanye ecaleni kwayo.Inokubangelwa ngokugqithisileyo kwangoku okanye isantya sokuhamba, i-angle ye-electrode engafanelekanga, okanye ubuchule bokuwelda obungalunganga.I-Undercutting inokunciphisa i-weld kwaye iholele ekugxininiseni uxinzelelo.

5. Isitshizi esigqithisileyo:

I-Spatter ibhekisela ekugxothweni kwamaconsi esinyithi atyhidiweyo ngexesha le-welding.I-spatter egqithisileyo inokuthi yenzeke ngenxa yezinto ezifana ne-welding current ephezulu, i-shielding gas flow rate engafanelekanga, okanye i-electrode angle engafanelekanga.I-Spatter inokubangela inkangeleko ye-weld embi kwaye inokufuna ukucocwa okongezelelweyo emva kwe-weld.

6.Ukugqwetheka:

Ukuphazamiseka kubhekiselele kwi-deformation okanye i-warping yesiseko sesinyithi okanye i-welding joint ngexesha le-welding.Inokuthi yenzeke ngenxa yokufudumeza okungafaniyo kunye nokupholisa kwezinto, ukulungiswa okungonelanga okanye ukugoba, okanye ukukhululwa koxinzelelo olushiyekileyo.Ukuphazamiseka kunokuchaphazela ukuchaneka kwe-dimensional kunye nokulungelelaniswa kwamacandelo adibeneyo.

Ukunciphisa ezi ziphene ngexesha le-welding ye-304 yensimbi engenasici, kubalulekile ukulandela iinkqubo ezifanelekileyo ze-welding, ukuqinisekisa ukulungiswa okudibeneyo okufanelekileyo, ukugcina igalelo elifanelekileyo lobushushu kunye nokukhusela i-gas coverage, kunye nokusebenzisa iindlela ezifanelekileyo ze-welding.Ukongeza, unyango lwangaphambi kwe-weld kunye ne-post-weld heat, kunye neendlela zokuvavanya ezingonakalisiyo, zinokuqeshwa ukuchonga nokunciphisa iziphene ezinokwenzeka.