1. Ntxuav thiab Purification: Flux tshem tawm oxides thiab impurities los ntawm vuam cov ntaub ntawv, kom ntseeg tau zoo weld.
2. Txhim kho Wettability: Flux pab txhawb kev sib cuag ntawm lub pas dej molten thiab workpiece nto, txhim kho wettability thiab ua vuam yooj yim dua.
3. Kev Tswjhwm Kub: Qee qhov fluxes pab tswj qhov kub thiab txias los ntawm kev nqus thiab tso tawm cov cua sov los ntawm chav, tswj qhov ntsuas kub kom tsim nyog.
4. Kev Tiv Thaiv Oxidation: Qee cov khoom hauv flux tiv thaiv cov pa oxygen nkag mus rau hauv qhov chaw vuam, tiv thaiv oxidation thiab tiv thaiv qhov vuam ntawm kev puas tsuaj.
5. Kev Txhim Kho Cov Qauv: Qee qhov fluxes tuaj yeem ntxiv thaum lub sijhawm vuam los hloov lub cev thiab tshuaj lom neeg ntawm cov khoom, ua kom nws ua tau raws li cov kev xav tau tshwj xeeb.
