Ukwenza ngcono ukusebenza kahle kanye nekhwalithi kubalulekile embonini yokukhiqiza enzima ehlala ishintsha. Enye yentuthuko ebaluleke kakhulu kubuchwepheshe bokushisela esizovela eminyakeni yamuva i-double submerged arc welding (DSAW). Lobu buchwepheshe obusha abukhulisi nje kuphela ubuqotho besakhiwo sezingxenye ezishiselwe, kodwa futhi lwenza inqubo yokukhiqiza ibe lula, buyenze ibe isiguquli segeyimu ezimbonini ezithembele ezintweni ezisindayo.
Enhliziyweni ye-DSAW yikhono layo lokukhiqiza amashisela ekhwalithi ephezulu anokukhubazeka okuncane. Indlela ihlanganisa ama-arcs amabili agqitshwe ngaphansi kongqimba lwe-granular flux, evikela i-weld pool ekungcoleni nasekufakweni kwe-oxidation. Umphumela uba ukushisela okuhlanzekile, okuqinile okungamelana nobunzima bezinhlelo zokusebenza zokwenziwa ezisindayo. Lokhu kubaluleke kakhulu ezinkampanini ezikhiqizayokubanda kwakheka ashiselwe kwesakhiwoizigaba ezingenalutho, njengalezo ezicaciswe kumazinga aseYurophu kumajamo ayindilinga, ayisikwele noma angama-rectangular. Lezi zingxenye zibalulekile emisebenzini eyahlukene, okuhlanganisa ukwakhiwa, ingqalasizinda kanye nemishini esindayo.
Itholakala eCangzhou, eSifundazweni saseHebei, lesi sitshalo sibonisa ngokugcwele izinzuzo ze-DSAW ekukhiqizeni kanzima. Yasungulwa ngo-1993, lesi sitshalo sihlanganisa indawo engamamitha-skwele angu-350,000 futhi sinempahla ephelele ye-yuan eyizigidi ezingu-680. Njengoba sinabasebenzi abazinikele abangama-680, lesi sikhungo sihamba phambili ekukhiqizeni izingxenye ezingenalutho zekhwalithi ephezulu. Ngokuhlanganisa i-DSAW ohlelweni lokukhiqiza, imboni ithuthukise kakhulu ukusebenza kahle kanye nekhwalithi yomkhiqizo.
Enye yezinzuzo eziyinhloko ze-DSAW isivinini. Inqubo ivumela isivinini sokushisela ngokushesha kunezindlela zendabuko, okunciphisa isikhathi sokukhiqiza. Lokhu kusebenza kahle kubalulekile ekukhiqizeni umsebenzi osindayo lapho isikhathi esiningi siwumongo. Ngokunciphisa isikhathi sokushisela, abakhiqizi bangakhuphula umkhiqizo futhi bahlangabezane nezidingo zemakethe yokuncintisana.
Ukwengeza, ikhwalithi ye-weld ye-DSAW ihlala iphezulu ngokungaguquki. Inqubo ye-arc engaphansi kwamanzi inciphisa ubungozi bokukhubazeka okufana ne-porosity nokufakwa okungafaka engozini ubuqotho besakhiwo bomkhiqizo wokugcina. Lokhu kubaluleke kakhulu ezigabeni ezinezimbobo ezakhiwe ngendlela ebandayo, okufanele zihlangabezane nezindinganiso eziqinile zekhwalithi ukuze kuqinisekiswe ukuphepha nokwethembeka kwezicelo zazo. Imboni yaseCangzhou isebenzisa lobu buchwepheshe ukuqinisekisa ukuthi imikhiqizo yaso ayigcini nje ngokuhlangabezana nezindinganiso zezimboni, kodwa iyawedlula.
Ngaphezu kokuthuthukisa ukusebenza kahle nekhwalithi, i-DSAW isiza futhi ukonga izindleko. Ngokukhubazeka okumbalwa, isidingo sokusebenza kabusha sincane, okusho ukuthi abakhiqizi bangakwazi ukwaba izinsiza ngendlela ephumelela kakhudlwana. Lokhu kuzuzisa kakhulu ekukhiqizeni ngezinga elikhulu, lapho izindleko zempahla nomsebenzi kuyizici ezibalulekile kuzo zonke izindleko zokukhiqiza.
Njengoba imboni yokukhiqiza esindayo iqhubeka nokukhula, ukwamukelwa kobuchwepheshe bokushisela obuphambili obufanai-arc ecwiliswe kabili eshiselweizodlala indima ebalulekile ekulolongeni ikusasa. Izinkampani ezitshala imali kulobu buchwepheshe ngeke nje zithuthukise ukusebenza kahle kodwa futhi zithuthukise ikhwalithi yomkhiqizo, ngaleyo ndlela zithole isikhundla esiphambili emakethe encintisana kakhulu.
Ngamafuphi, ukushisela kwe-arc okungaphansi kwamanzi okuphindwe kabili kuguqula ukukhiqizwa okunzima ngokuthuthukisa ukusebenza kahle nekhwalithi. Lesi sitshalo eseDolobheni laseCangzhou siyisibonelo esihle sokuthi ubuchwepheshe bungahlanganiswa kanjani ngempumelelo nenqubo yokukhiqiza, sikhiqize izingxenye ezingenalutho zesakhiwo ezisezingeni eliphezulu ezihlangabezana nezidingo zemboni yesimanje. Njengoba abakhiqizi belwela ukwenza kahle, ukwamukela ubuchwepheshe obusha obufana ne-DSAW kuzobaluleka empumelelweni eminyakeni ezayo.
Isikhathi sokuthumela: Apr-08-2025