Medium frequency inverter spot welding inzira inochinja-chinja uye inoshanda yewelding inoshandiswa mumaindasitiri akasiyana. Munguva yewelding process, iyo yekutonhodza uye crystallization nhanho inoita basa rakakosha pakuona ekupedzisira zvimiro zveweld joint. Muchikamu chino, isu tichaongorora mukati meiyo kutonhora uye crystallization nhanho mune yepakati frequency inverter nzvimbo welding.
Kutonhodza Maitiro:
Mushure mekunge welding ikozvino yadzimwa, kutonhora kunotanga. Munguva iyi, kupisa kunogadzirwa panguva yewelding kunopera, uye tembiricha yeweld zone inoderera zvishoma nezvishoma. Mwero wekutonhodza unobata basa rakakosha mukukura kwemicrostructural uye zvemuchina zvemujoini we weld. Iyo inodzorwa uye zvishoma nezvishoma kutonhora mwero wakakosha kuti uve nechokwadi chinodiwa chesimbi hunhu.
Solidification uye Crystallization:
Sezvo iyo weld zone inotonhora, simbi yakanyungudutswa inoshanduka kuita yakasimba kuburikidza nemaitiro ekusimba uye crystallization. Kuumbwa kwechimiro chakasimba kunosanganisira nucleation uye kukura kwekristalline zviyo. Chiyero chekutonhodza chinokanganisa saizi, kugovera, uye kutaridzika kwezviyo izvi, izvo zvinozokanganisa ma mechanic properties yejoint weld.
Microstructure Development:
Iyo yekutonhora uye crystallization nhanho inokanganisa zvakanyanya iyo microstructure ye weld joint. Iyo microstructure inoratidzirwa nekurongeka, saizi, uye kugoverwa kwezviyo, pamwe nekuvapo kwechero alloying zvinhu kana zvikamu. Chiyero chekutonhodza chinotarisa iyo microstructural maficha, senge saizi yezviyo uye kuumbwa kwechikamu. Kutonhora kunononoka kunokurudzira kukura kwezviyo zvakakura, nepo kutonhora kwekukurumidza kunogona kukonzera zviyo zvakatsetseka.
Residual Stresses:
Munguva yekutonhodza uye crystallization nhanho, kupisa kunopisa kunoitika, zvichitungamira kukudziridzika kwezvakasara zvinonetsa mumubatanidzwa we weld. Kusarira kushushikana kunogona kukanganisa maitiro emuchina weiyo welded chikamu, zvichikanganisa zvinhu zvakaita sekugadzikana kwedimensional, kuramba kuneta, uye kukanganisa kukanganisa. Kutariswa kwakaringana kwemazinga ekutonhodza uye kutonga kwekupisa kwekupisa kunogona kubatsira kudzikisira kuumbwa kwekunyanya kusarira kushushikana.
Post-Weld Heat Treatment:
Mune zvimwe zviitiko, post-weld kupisa kurapwa inogona kushandiswa mushure mekutonhora uye crystallization nhanho kuti uenderere mberi nekunatsa iyo microstructure uye kudzoreredza kushushikana kwasara. Kurapa kwekupisa senge annealing kana kupisa kunogona kubatsira kuvandudza weld joint's mechanical properties, senge kuoma, kuoma, uye ductility. Iyo chaiyo yekupisa kupisa maitiro uye ma parameter zvinoenderana nechinhu chiri kusungirirwa uye inodiwa zvivakwa.
Iyo yekutonhodza uye crystallization nhanho mune yepakati frequency inverter nzvimbo welding chikamu chakakosha chinopesvedzera yekupedzisira microstructure uye michina zvimiro zveweld joint. Nekudzora mwero wekutonhodza, vagadziri vanogona kuwana zviyo zvinodikanwa zvimiro, kuderedza kushushikana kwasara, uye kuwedzera kuita kwese kwezvikamu zvakasungirirwa. Kunzwisisa kuomarara kwekutonhora uye crystallization process inobvumira zvirinani optimization yewelding paramita uye post-weld kurapwa, zvinozotungamira kune emhando yepamusoro uye akavimbika weld majoini.
Nguva yekutumira: May-18-2023
