I-Medium frequency inverter spot welding yindlela eguquguqukayo nesebenzayo yokuwelda esetyenziswa kumashishini ahlukeneyo.Ngethuba lenkqubo ye-welding, isigaba sokupholisa kunye ne-crystallization sidlala indima ebalulekileyo ekunqumeni iimpawu zokugqibela ze-weld joint.Kweli nqaku, siza kuphonononga kwiinkcukacha zenqanaba lokupholisa kunye necrystallization kwi-medium frequency inverter spot welding.
Inkqubo yokupholisa:
Emva kokuba i-welding current icinyiwe, inkqubo yokupholisa iqala.Ngeli nqanaba, ubushushu obuveliswe ngexesha le-welding buyaphela, kwaye ubushushu bendawo ye-weld buyancipha ngokuthe ngcembe.Izinga lokupholisa lidlala indima ebalulekileyo kuphuhliso lwe-microstructural kunye neempawu zomatshini we-weld joint.Izinga lokupholisa elilawulwayo nelicothayo libalulekile ukuqinisekisa iimpawu ezinqwenelekayo zesinyithi.
Ukuqinisa kunye neCrystallization:
Njengoko i-weld zone iphola, isinyithi esinyibilikisiweyo siguquka sibe sisimo esiqinileyo ngenkqubo yokuqina kunye necrystallization.Ukuqulunqwa kwesakhiwo esiqinileyo kubandakanya i-nucleation kunye nokukhula kweenkozo ze-crystalline.Izinga lokupholisa lichaphazela ubungakanani, ukuhanjiswa, kunye nokuqhelaniswa kwezi nkozo, ezithi, zona, zichaphazele iipropathi zomatshini zejoyinti ye-weld.
Uphuhliso lweMicrostructure:
Inqanaba lokupholisa kunye ne-crystallization lichaphazela kakhulu i-microstructure ye-weld joint.I-microstructure ibonakaliswe ngokucwangciswa, ubungakanani, kunye nokuhanjiswa kweenkozo, kunye nobukho bazo naziphi na izinto ze-alloying okanye izigaba.Izinga lokupholisa limisela iimpawu ze-microstructural, ezifana nobukhulu beenkozo kunye nokwakhiwa kwesigaba.Isantya sokupholisa esicothayo sikhuthaza ukukhula kweenkozo ezinkulu, ngelixa isantya sokupholisa ngokukhawuleza sinokubangela ukwakheka kweenkozo ezicolekileyo.
Uxinzelelo olushiyekileyo:
Ngexesha lokupholisa kunye ne-crystallization stage, i-contraction ye-thermal iyenzeka, ekhokelela ekuphuhlisweni kweengcinezelo eziseleyo kwi-weld joint.Uxinzelelo olushiyekileyo lunokuchaphazela indlela yokuziphatha komatshini wecandelo elidityanisiweyo, elichaphazela izinto ezinje ngozinzo lwe-dimensional, ukumelana nokudinwa, kunye nokuchaphazeleka kokuqhekeka.Uqwalaselo olululo lwamazinga okupholisa kunye nolawulo lwegalelo lobushushu lunokunceda ukunciphisa ukubunjwa koxinzelelo olugqithisileyo lwentsalela.
Unyango loBushushu lwasemva kweWeld:
Kwezinye iimeko, unyango lwe-post-weld heat heat lungasetyenzwa emva kwesigaba sokupholisa kunye ne-crystallization ukuqhubela phambili ukulungiswa kwe-microstructure kunye nokunciphisa uxinzelelo olushiyekileyo.Unyango lobushushu olufana nokufunxa okanye ukufutha lunokunceda ukuphucula iipropathi zomatshini zejoyinti leweld, njengokuqina, ukuqina, kunye nokudumba.Inkqubo ethile yokushisa ukushisa kunye neeparitha zixhomekeke kwizinto ezifakwe kwi-welded kunye neempawu ezifunwayo.
Inqanaba lokupholisa kunye ne-crystallization kwi-medium frequency inverter spot welding sisigaba esibalulekileyo esichaphazela i-microstructure yokugqibela kunye neempawu zomatshini we-weld joint.Ngokulawula umyinge wokupholisa, abavelisi banokufikelela kwizakhiwo ezinqwenelekayo eziziinkozo, banciphise uxinzelelo olushiyekileyo, kwaye baphucule ukusebenza ngokubanzi kwamacandelo adityanisiweyo.Ukuqonda ubunzima benkqubo yokupholisa kunye ne-crystallization kuvumela ukulungiswa okungcono kweeparamitha ze-welding kunye nonyango lwe-post-weld, ekugqibeleni lukhokelela kwizinga eliphezulu kunye nezithembekileyo ze-weld joints.
Ixesha lokuposa: May-18-2023