Ukuwelda ngentsimbi engagqwaliyo kumela icandelo elikhethekileyo lokudibanisa isinyithi elifuna ulawulo oluchanekileyo kwiimpawu ze-metallurgical kunye neeparamitha zenkqubo. Ukukhethwa kwezinto ezifanelekileyo zokuzalisa kubalulekile ekufezekiseni iimpawu ezifunekayo kwi-weldment, ngakumbi xa usebenza ngee-alloys ezinobushushu obuphezulu kunye ne-corrosion-resistant. Ngaphakathi kweli candelo lobugcisa, udidi lwe-AWS A5.4 E310-16 lubonisa uhlobo oluthile lwe-electrode yokuwelda ngentsimbi engagqwali eyenzelwe usetyenziso olunzima apho ukusebenza kobushushu obuphezulu kubaluleke kakhulu.
I-electrode ye-E310-16, ebizwa ngokuba yi-A402, inomxube wediphozithi ye-Cr26Ni21 e-austenitic ngokupheleleyo enenkqubo yokugquma i-titania-calcium. Le ngubo ikhethekileyo yokugquma ivumela ukusebenza okuguquguqukayo ngemithombo yamandla yamandla atshintshanayo kunye nalawo angqalileyo, ngelixa ibonelela ngozinzo olukhethekileyo lwe-arc kunye nokuqhekeka kwe-slag okuphucula kakhulu ukusetyenziswa komqhubi. Ifomyula elungelelanisiweyo ikhuthaza ukudluliselwa kwesinyithi okugudileyo, ukuveliswa okuncinci kokuchitheka, kunye nokususwa kwe-slag ngokulula.—izinto ezincedisa ngokudibeneyo ekuphuculeni umgangatho we-weld kunye nokusebenza kakuhle kwiukuwelda ngentsimbi engagqwaliyoiinkqubo.
Uphawu olucacileyo lwale electrode kukuxhathisa okungaqhelekanga kwe-oxidation yobushushu obuphezulu okubonakaliswa yintsimbi yayo egciniweyo, egcina ukuqina kwesakhiwo ngaphakathi kwe-900.°C ukuya kwi-1100°Uluhlu lwe-C. Olu phawu lokusebenza lwenza ukuba ifaneleke ngokukodwa ukwenza izinto ezixhomekeke kubushushu obuhlala buhleli, iindawo zesithando somlilo, izixhobo zonyango lobushushu, kunye neenkqubo zokucubungula ubushushu obuphezulu. Ulwakhiwo oluncinci lwe-austenitic lwentsimbi ye-weld lubonelela ngozinzo lobushushu kunye nokuguquguquka, okuthintela iziganeko zokuqhekeka ezinokuthi zibeke ubomi benkonzo yecandelo emngciphekweni.
Ngokuphathelele umda wesicelo, okuukuwelda ngentsimbi engagqwaliyoI-electrode ibonisa ukuguquguquka okumangalisayo ngaphaya komsebenzi wayo oyintloko wokudibanisa iintsimbi ezingatshiyo ezifanayo ezingatshiyo. Isebenza ngokufanelekileyo kwiintsimbi ze-chromium ezicinyiweyo zokuwelda kuquka iiklasi ze-Cr5Mo, i-Cr9Mo, i-Cr13, kunye ne-Cr28, ngelixa ikwabonelela ngezisombululo ezithembekileyo kwiindibano zesinyithi ezahlukeneyo phakathi kwezinto ze-austenitic kunye ne-ferritic. Oku kuhambelana kwemigangatho eyahlukeneyo kunciphisa iimfuno zempahla ngelixa kugcinwa umgangatho wokuwelda kwiimeko ezahlukeneyo zokulungisa kunye nokuveliswa.
Udidi lwe-E310-16 lubonisa isisombululo esiphucukileyo sobuchwephesha ngaphakathiukuwelda ngentsimbi engagqwaliyoi-domain, eyenzelwe ngokukodwa iindawo ezifuna ubushushu obuphezulu. Ukudibana kwayo neempawu zokusebenza, iimpawu ze-metallurgical, kunye nokuguquguquka kwesicelo kumisela le electrode njengomthombo oxabisekileyo kumashishini afuna ukusebenza okuthembekileyo phantsi koxinzelelo lobushushu. Ukubaluleka okuqhubekayo kwezinto ezinjalo ezikhethekileyo ezisetyenziswayo kugxininisa ukubaluleka kweendlela ezithile zezinto kwizicelo eziphambili ze-stainless steel welding.
Ixesha leposi: Oktobha-21-2025