Isingeniso Sesiteji Sokupholisa NeCrystallization ku-Medium Frequency Inverter Spot Welding

I-Medium frequency inverter spot welding iyindlela yokushisela eguquguqukayo futhi ephumelelayo esetshenziswa ezimbonini ezahlukahlukene. Ngesikhathi senqubo yokushisela, isigaba sokupholisa kanye ne-crystallization sidlala indima ebalulekile ekunqumeni izakhiwo zokugcina zejoyinti le-weld. Kulesi sihloko, sizocubungula imininingwane yesiteji sokupholisa kanye ne-crystallization ku-medium frequency inverter spot welding.

Inqubo yokupholisa:
Ngemuva kokuthi i-welding current ivaliwe, inqubo yokupholisa iqala. Ngalesi sigaba, ukushisa okukhiqizwa ngesikhathi sokushisela kuyaphela, futhi izinga lokushisa lendawo yokushisela liyehla kancane kancane. Izinga lokupholisa lidlala indima ebalulekile ekuthuthukisweni kwesakhiwo esincane kanye nezakhiwo zemishini zejoyinti le-weld. Izinga lokupholisa elilawulwayo nelihamba kancane libalulekile ukuze kuqinisekiswe izici zensimbi ezidingekayo.
Ukuqinisa kanye ne-Crystallization:
Njengoba indawo yokushisela iphola, insimbi encibilikisiwe ishintsha ibe yisimo esiqinile ngenqubo yokuqiniswa kanye nokucwebezela. Ukwakhiwa kwesakhiwo esiqinile kuhilela ukwakhiwa kwe-nucleation nokukhula kwezinhlamvu zekristalu. Izinga lokupholisa lithonya usayizi, ukusatshalaliswa, kanye nokuma kwalezi zinhlamvu, okubuye kube nomthelela ezintweni zokusebenza zejoyinti lokushisela.
Ukuthuthukiswa Kwezakhiwo Ezincane:
Isiteji sokupholisa kanye nekristalu sithinta kakhulu isakhiwo se-weld joint. I-microstructure ibonakala ngokuhlelwa, usayizi, nokusabalalisa okusanhlamvu, kanye nokuba khona kwanoma yiziphi izakhi ze-alloying noma izigaba. Izinga lokupholisa linquma izici ze-microstructural, njengosayizi wokusanhlamvu nokwakheka kwesigaba. Izinga lokupholisa elihamba kancane likhuthaza ukukhula kwezinhlamvu ezinkulu, kuyilapho izinga lokupholisa elisheshayo lingabangela izakhiwo zokusanhlamvu ezicolekile.
Izingcindezi Ezinsalela:
Phakathi nesigaba sokupholisa kanye ne-crystallization, ukufinyela okushisayo kwenzeka, okuholela ekuthuthukisweni kokucindezeleka okusele ekuhlanganyeleni okushisela. Ukucindezeleka okuyinsalela kungaba nomthelela ekuziphatheni kwemishini kwengxenye eshiselwe, kuthinte izici ezifana nokuzinza kobukhulu, ukumelana nokukhathala, kanye nokuba sengozini yokuqhekeka. Ukucatshangelwa okufanele kwamazinga okupholisa kanye nokulawula okokufaka ukushisa kungasiza ekwehliseni ukwakheka kwengcindezi yensalela eyeqile.
Ukwelashwa Kokushisa Kwangemva Kwe-Weld:
Kwezinye izimo, ukwelashwa kokushisa kwangemva kokushisela kungase kusetshenziswe ngemva kwesiteji sokupholisa kanye nekristalu ukuze kuthuthukiswe ukucwengwa kwe-microstructure kanye nokukhulula izingcindezi ezinsalela. Ukwelashwa kokushisa okufana ne-anneal noma ukushisa kungasiza ukuthuthukisa izici zemishini yejoyinti le-weld, njengokuqina, ukuqina, kanye ne-ductility. Inqubo ethile yokwelapha ukushisa kanye nemingcele incike ezintweni ezishiselwe kanye nezakhiwo ezifunwayo.
Isiteji sokupholisa nokucwebezela ku-medium frequency inverter spot welding yisigaba esibalulekile esithonya i-microstructure yokugcina kanye nezakhiwo zemishini zejoyinti le-weld. Ngokulawula izinga lokupholisa, abakhiqizi bangafinyelela izakhiwo zokusanhlamvu ezifiselekayo, banciphise izingcindezi ezinsalela, futhi bathuthukise ukusebenza okuphelele kwezinto ezishiselwe. Ukuqonda izinkimbinkimbi zenqubo yokupholisa kanye ne-crystallization kuvumela ukwenziwa ngcono kwemingcele yokushisela kanye nokwelashwa kwe-post-weld, ekugcineni kuholele ekuhlanganiseni kwe-weld okusezingeni eliphezulu nokuthembekile.