Sei paine mabubbles panzvimbo dzewelding dzepakati frequency spot welding muchina?Kuumbwa kwemabhuru kutanga kunoda kuumbwa kwebubble core, iyo inofanirwa kusangana nemamiriro maviri: imwe ndeyekuti simbi yemvura ine supersaturated gasi, uye imwe ndeyekuti ine simba rinodiwa kuti nucleation.Kuongorora uye mhinduro kudambudziko re solder joint bubbles:
Iyo supersaturation mune simbi yemvura yakakwira zvakanyanya, uye iyo yakakwira iyo supersaturation, inova isina kugadzikana.Gasi rinowanzoita kunaya uye kuita mabubbles.Naizvozvo, dziva rakanyungudutswa muwelding rine inodiwa supersaturation mamiriro kuita mabubbles.Kufanana nekuita kwesimbi crystallization, bubble nucleation inogonawo kuitika nenzira mbiri: spontaneous nucleation uye non spontaneous nucleation.Kana bubble core ikaumbwa, bubble rinofanirwa kukunda kudzvinyirirwa kwemvura uye kuita basa rekuwedzera
Nekuda kwekuwedzera kwesimba repamusoro rinokonzerwa nekuumbwa kwezvikamu zvitsva, kana bubble core ine saizi yakakosha ikaumbwa mumvura, simba rakakwana rinofanira kupihwa kugadzira simba renyukireya.Zviripachena, iyo yakakwira iyo nucleation simba, kashoma mukana wekuumba bubble core.Sezvineiwo, zviri nyore kugadzira bubble core.
Nguva yekutumira: Zvita-23-2023