Ingabe i-Thermal Equilibrium ibhekwa ku-Medium-Frequency Direct Current Spot Welding?

Ezweni lokushisela, kunezici eziningi ezisebenzayo ukuze kuqinisekiswe ikhwalithi nobuqotho bomkhiqizo wokugcina. Esinye sezici ezinjalo ukucatshangelwa kokulingana kwe-thermal ekushiseleleni kwendawo okuphakathi nemvamisa eqondile yamanje. Kulesi sihloko, sihlola ukubaluleka kokulingana okushisayo kule nqubo yokushisela kanye nomthelela wayo ku-weld yokugcina.

I-Medium-frequency direct spot welding, evame ukubizwa ngokuthi yi-MFDC spot welding, iyindlela esetshenziswa kakhulu ezimbonini ezihlukahlukene, ezihlanganisa ezezimoto, i-aerospace, kanye nezokukhiqiza. Kubandakanya ukuhlanganisa izingcezu ezimbili zensimbi ngokusebenzisa amandla kagesi kwifrikhwensi ephakathi nendawo, ngokuvamile ephakathi kuka-1000 Hz no-10000 Hz, ngokusebenzisa ama-electrode e-copper alloy. Umsinga kagesi ukhiqiza ukushisa, okuncibilikisa insimbi endaweni yokushisela, futhi lapho ukupholisa, kwakheka i-weld eqinile.

Ukucatshangelwa okukodwa okuyisisekelo kule nqubo ukuzuza ukulingana kwe-thermal. Ukulinganisa kwe-thermal kubhekisela esimweni lapho okokufaka kokushisa ku-workpiece kulinganisa ukulahlekelwa ukushisa, okuholela ekushiseni okuzinzile nokulawulwayo ngaphakathi kwendawo yokushisela. Ukufinyelela ukulingana okushisayo kubalulekile ngenxa yezizathu eziningana:

1. Ukuvumelana kanye Nekhwalithi: Ukushisela ekushiseni okuzinzile kuqinisekisa ama-welds angaguquki futhi aphezulu. Amazinga okushisa angahambisani angaholela ekulimaleni okufana ne-porosity, ukuqhekeka, noma ukungena okwanele.
2. I-Optimal Weld Properties: Izinto ezihlukene zidinga amazinga okushisa athile okushisela ukuze kuzuzwe izakhiwo ezifiselekayo zemishini. Ukulinganisa kwe-thermal kuvumela ukulawula okunembile kokufaka kokushisa, ukuqinisekisa ukuthi i-weld yokugcina inamandla adingekayo kanye nokuqina.
3. Ukuhlanekezela Okuncishisiwe: I-Welding ingabangela ukuhlanekezela ku-workpiece ngenxa yokushisa okungalingani nokupholisa. Ukulingana kwe-thermal kusiza ukunciphisa ukuhlanekezela, kuqinisekiswe ukuthi umkhiqizo wokugcina ugcina umumo nobukhulu obuhlosiwe.
4. Ukusebenza Kwamandla: Ukushisela ezingeni lokushisa elifanele kunciphisa ukusetshenziswa kwamandla futhi kunciphisa ukumosha izinto ezibonakalayo. Izinqubo zokushisela ezingasebenzi kahle zingaholela ekwenyukeni kwezindleko zamandla kanye nokulahlekelwa kwezinto ezibonakalayo.

Ukuzuza ukulingana okushisayo ku-MFDC spot welding kuhilela ukulawula ngokucophelela imingcele ehlukahlukene, kuhlanganise yamanje, i-voltage, isikhathi sokushisela, namandla e-electrode. Amasistimu okuqapha izinga lokushisa kanye nezindlela zokuphendula ngokuvamile zisetshenziswa ukuze kugcinwe izinga lokushisa elingaguquki kuyo yonke inqubo yokushisela.

Idizayini yomshini wokushisela nayo idlala indima ebalulekile ekuzuzeni ukulingana kokushisa. Izindlela eziphumelelayo zokuqeda ukushisa, ukupholisa i-electrode efanele, nokulawulwa okunembile kwemingcele yokushisela kuyadingeka ukuze kuqinisekiswe izinga lokushisa elizinzile nelilawulwayo.

Sengiphetha, ukulingana kwe-thermal kuwukucatshangelwa okubalulekile ekushiseleleni kwendawo okuphakathi nemvamisa yamanje. Ithinta ngqo ikhwalithi, ukungaguquguquki, nokusebenza kahle kwenqubo yokushisela. Onjiniyela bokushisela kanye nama-opharetha kufanele baqaphe ngokucophelela futhi balawule imingcele ehlukahlukene ukuze kuzuzwe futhi kugcinwe ukulingana kokushisa, baqinisekise ukuthi ukushisela kokugcina kuhlangabezana nezindinganiso ezidingekayo kanye nemininingwane.