Covreflow qhov cubpreheating yog ib qho kev ua cua sov ua kom qhib cov tshuaj nplaum thiab zam qhov tsis ua haujlwm los ntawm kev kub ceev ceev thaum lub sij hawm tin immersion.Lub hom phiaj ntawm cheeb tsam no yog kom sov PCB ntawm chav tsev kub kom sai li sai tau, tab sis cov cua kub yuav tsum tau tswj nyob rau hauv ib qho kev tsim nyog.Yog tias nws ceev heev, thermal shock yuav tshwm sim, thiab cov khoom siv hluav taws xob thiab cov khoom siv yuav puas.Yog tias nws qeeb dhau, cov kuab tshuaj yuav tsis evaporate txaus, uas yuav cuam tshuam rau Vuam zoo.Vim lub cua kub ceev ceev, qhov sib txawv ntawm qhov kub thiab txias nyob rau hauv lub reflow furnace chamber nyob rau hauv lub tom kawg ntawm lub kub cheeb tsam yog loj.Txhawm rau tiv thaiv kev puas tsuaj ntawm cov khoom vim yog thermal poob siab, qhov siab tshaj plaws cua sov feem ntau tau teev tseg raws li 4 ° C / S, thiab tus nqi nce li ib txwm yog teem rau 1 ~ 3 ° C / S.
Post lub sij hawm: Aug-24-2022