Porosity ke taba e tloaelehileng eo ho kopanang le eona ho cheselleng ha linate, e lebisang ho li-welds tse fokolang le tse sa tšepahaleng. Sengoliloeng sena, re tla fana ka kakaretso e felletseng ea litharollo tse fapaneng tsa ho sebetsana le porosity ho tjheseletsa ha linate. Ka ho kenya ts'ebetsong mekhoa ena, basebetsi ba ka fokotsa ho hlaha ha porosity le ho netefatsa li-welds tse matla.
- Boitokiso bo kaholimo: Tokiso e nepahetseng ea bokaholimo ke ea bohlokoa ho fokotsa porosity ho cheselleng ha linate. Pele o tjheseletsa, ho bohlokwa ho hlwekisa ka botlalo bokahodimo ba ho tlolelana ha nate le sesebediswa sa mosebetsi ho tlosa ditshila, tse kang oli, ditshila kapa oxides. Sena se ka finyelloa ka ho hloekisa solvent, brushing kapa abrasive blasting. Sebaka se hloekileng se khothalletsa ho kenella hantle ha weld le ho fokotsa kotsi ea ho thehoa ha porosity.
- Khetho ea Electrode: Khetho ea li-electrode tsa welding e ka ama sebopeho sa porosity haholo. Ho kgothaletswa ho sebelisa li-electrode tse entsoeng ka thepa e nang le motlakase o phahameng oa motlakase le reactivity e tlaase, e kang li-alloys tsa koporo kapa tsa koporo. Li-electrode tsena li fana ka phetisetso e ntle ea mocheso le ho fokotsa monyetla oa ho ts'oaroa ha khase, ho fokotsa sebopeho sa porosity.
- Ntlafatso ea Liparamente tsa Welding: Ho ntlafatsa liparamente tsa welding ho bohlokoa ho fokotsa porosity. Mekhahlelo e joalo ka welding hajoale, nako le khatello li lokela ho lokisoa ka hloko ho fihlela boleng bo nepahetseng ba weld. Nako e sa lekaneng ea tjheseletsa ea hona joale kapa nako e sa lekaneng ea tjheseletsa e ka fella ka tlhahiso e sa lekaneng ea mocheso, e lebisang ho porosity. Ka lehlakoreng le leng, ho tjheseletsa ho feteletseng hona joale kapa nako e telele ea welding ho ka baka mocheso o feteletseng, ho etsa mouoane oa thepa le ho baka porosity. Ho fumana tekanyo e nepahetseng ke senotlolo sa ho fokotsa porosity.
- Tšireletso ea Khase: Maemong a mang, tšebeliso ea likhase tse sireletsang li ka thusa ho fokotsa porosity. Likhase tse sireletsang, tse kang argon kapa helium, li etsa hore ho be le sepakapaka se sireletsang ho potoloha sebaka sa weld, ho thibela ho kenella ha likhase tsa sepakapaka tse ka tlatsetsang ho porosity. Sena se molemo haholo ha ho chesetsoa lisebelisoa tse sebetsang hantle kapa libakeng tse nang le litšila tse ngata tsa sepakapaka.
- Tlhokomelo ea Electrode: Tlhokomelo ea kamehla ea li-electrode tsa welding ke ea bohlokoa ho thibela porosity. Ha nako e ntse e ea, li-electrode li ka silafatsoa kapa tsa senyeha, tse lebisang ho fetisoeng ha mocheso o fokolang le ho eketseha ha porosity. Ho bohlokoa ho hloekisa le ho hlahloba li-electrode khafetsa, ho tlosa litšila leha e le life tse hahiloeng kapa oxidation. Ho feta moo, ho nkela li-electrode tse tsofetseng sebaka ho netefatsa ts'ebetso e tsitsitseng mme ho fokotsa kotsi ea porosity.
- Mokhoa oa ho cheseletsa: Mokhoa o nepahetseng oa ho cheselletsa o bapala karolo e kholo ho fokotsa porosity. Basebelisi ba lokela ho etsa bonnete ba hore ho tsamaisana hantle pakeng tsa nut le workpiece, ho boloka khatello e tsitsitseng nakong ea welding, le ho qoba matla a feteletseng a electrode kapa ho tsamaea ka potlako. Mekhoa e tsitsitseng le e laoloang ea welding e thusa ho fokotsa porosity le ho hlahisa li-welds tsa boleng bo phahameng.
Porosity ho tjheseletsa ha linate e ka senya botšepehi le matla a li-welds. Leha ho le joalo, ka ho latela litharollo tse boletsoeng sehloohong sena, basebetsi ba ka fokotsa mathata a porosity ka katleho. Ho kenya ts'ebetsong boitokiso bo nepahetseng ba holim'a metsi, ho khetha li-electrode tse loketseng, ho ntlafatsa liparamente tsa welding, ho sebelisa tšireletso ea khase, ho boloka li-electrode, le ho sebelisa mekhoa e nepahetseng ea ho tjheseletsa ke mehato ea bohlokoa ea ho fokotsa porosity le ho fumana li-welds tse matla le tse tšepahalang lits'ebetsong tsa ho cheselletsa linate.
Nako ea poso: Jul-10-2023
