Insimbi yokushiselakuyindlela yezimboni eguquguqukayo engahlanganisa izinhlobo ezahlukene zensimbi.Le ndlela yokuqopha yashintsha ukukhiqizwa ngokwenza kube nokwenzeka ukukhiqiza izinto zensimbi eziyinkimbinkimbi neziqinile.Ukushisela insimbi, okuhlanganisa amasu ahlukene angaphezu kuka-40, sekuyingxenye ebalulekile yezimboni eziningi, okuhlanganisa imboni yezimoto, yokwakha kanye ne-aerospace.
I-Fusion welding ingenye yezigaba eziyinhloko ze-metal welding.Ukuxhuma izingxenye zensimbi ngokuqondile, inqubo ihlanganisa ukuncibilika kokubili i-workpiece kanye ne-solder.Kunezindlela eziningi zokuhlinzeka ngokushisa okudingekayo ekushiseleleni okuhlanganisiwe, okuhlanganisa amalangabi egesi, ama-arcs kagesi, namalaser.Njengoba zipholile futhi ziqina ngemva kokuncibilika ndawonye, i-workpiece ne-solder kuyahlangana ukuze kwakhiwe isibopho esiqinile.
Olunye uhlobo olujwayelekile lwe-metal welding i-pressure welding.Le nqubo isebenzisa ingcindezi ukuze inamathisele izingcezu zensimbi, njengoba igama lingase lisho.I-pressure welding ayibandakanyi ukuncibilika kwensimbi, ngokungafani ne-fusion welding.Esikhundleni salokho, amandla asetshenzisiwe akhubaza futhi acindezele izinto, enze ukuhlangana okuqinile okungenakuhlukaniswa.Uma uxhumano olunamandla aphezulu ludingeka noma lapho kuhlanganiswa izinsimbi nezinga lokushisa elincibilikayo elihlukile, le ndlela iyasiza kakhulu.
Uhlobo lwesithathu lwensimbi yokushisela i-brazing.Kubandakanya ukusebenzisa ama-alloys e-brazing njengezinto zokugcwalisa ukuxhumanisa izingxenye zensimbi.Lapho i-brazing, ngokuphambene ne-fusion welding, izinto zokugcwalisa ezinamaphoyinti ancibilikayo aphansi kunensimbi yomzali zingasetshenziswa.I-alloy yokufaka i-alloy ishiselwa endaweni yayo yokuncibilika (imvamisa iphansi kune-workpiece) bese igeleza ngesenzo se-capillary phakathi kwezingxenye zensimbi ukuze yakha ilunga eliqinile, elithembekile.
Welding metal ngokwezifisoibalulekile emabhizinisini amaningi njengoba yenza kube lula ukukhiqiza impahla ehlukahlukene.I-Welding isetshenziswa embonini yezimoto ukuhlanganisa uhlaka, isistimu yokukhipha umoya, nezingxenye zenjini.Iqinisekisa ukusimama nokuphepha kwesakhiwo semoto.Insimbi yokushisela isetshenziswa ekwakheni ukuze kuhlanganiswe imishayo yensimbi, i-rebar, namapayipi, okuqinisekisa ukuzinza namandla aqinile ezakhiwo nengqalasizinda.Ukuze kuqinisekiswe ukwethembeka nobuqotho bezindiza, ukushisela kuyasetshenziswa emkhakheni we-aerospace ukukhiqiza amathangi kaphethiloli, izingxenye zenjini, nezakhiwo zezindiza.
Izinhlelo zokushisela ezizenzakalelayo nezisizwa ngamarobhothi zenziwe ngenxa yokuthuthukiswa kobuchwepheshe bokushisela insimbi.Lezi zenzakalo azigcini nje ngokuthuthukisa umphumela nokunemba kodwa futhi zikhulisa ukuphepha kwezisebenzi ngokunciphisa ukuchayeka kwazo ezimweni eziyingozi.Ukwengeza, uhlelo lwe-welding olulawulwa ngekhompiyutha luvumela ukuphindaphinda okukhulu nokunemba, okuholela ekushiseni okungaguquki, okusezingeni eliphezulu.
Nakuba ukushisela insimbi kunezinzuzo eziningi, kubuye kube nezinselele ezithile.Inqubo idinga ochwepheshe abanekhono nabaqeqeshwe kahle abanolwazi olunzulu lwezindlela zokushisela ezihlukene kanye nezakhiwo zensimbi.Ukwengeza, izinkinga ezinjengokuhlanekezela, i-porosity, nokucindezeleka okusalayo kungase kwenzeke ngesikhathi sokushisela, kuthinte ubuqotho besakhiwo somkhiqizo wokugcina.Ngakho-ke, ukuhlela ngokucophelela, ukubulawa ngokucophelela kanye nezinyathelo eziqinile zokulawula izinga kubalulekile ukuze kuqinisekiswe ukwethembeka nokusebenza kwemikhiqizo yensimbi eshiselwe.
Sengiphetha, ukushisela insimbi kuyinqubo yokuhlanganisa insimbi eguquguqukayo futhi ebaluleke kakhulu.Ngezindlela zayo eziningi zokushisela, zokunamathisela ne-brazing, inikeza amathuba angapheli okwakha nokuqopha imikhiqizo yensimbi.Kusukela ezimbonini zezimoto kuye kwezokwakha kanye nezimboni ze-aerospace, ukushisela insimbi kudlala indima ebalulekile ekuqinisekiseni amandla, ukuqina nokuphepha kwemikhiqizo ehlukahlukene.Ngokuthuthuka okuqhubekayo kobuchwepheshe, ubuchwepheshe bokushisela insimbi ngokungangabazeki buzoqhubeka nokuthuthuka, buthuthukise ukusebenza kahle, ukunemba kanye nekhwalithiizingxenye ezishiselwe.
Isikhathi sokuthumela: Aug-15-2023