Yog vim li casreflow solderinghu ua "reflow"?Lub reflow ntawm reflow soldering txhais tau hais tias tom qab lubsolder muab tshuaj txhuammus txog lub melting point ntawm lub solder paste, nyob rau hauv qhov kev txiav txim ntawm lub nto nro ntawm cov kua tin thiab cov flux, cov kua tin reflows mus rau lub Cheebtsam pins los tsim solder pob qij txha, uas tso cai rau lub Circuit Court A txheej txheem nyob rau hauv uas lub board pads thiab cov khoom yog soldered rau hauv tag nrho tseem hu ua "reflow" txheej txheem.
1. Thaum lub rooj tsavxwm PCB nkag mus rau hauv qhov chaw ua kom sov reflow, cov kuab tshuaj thiab cov roj hauv cov tshuaj txhuam hniav evaporate.Nyob rau tib lub sij hawm, cov flux nyob rau hauv lub solder paste wets lub ncoo, tivthaiv xaus thiab pins, thiab solder paste softens thiab collapses., Npog lub ncoo, cais lub ncoo thiab tivthaiv pins los ntawm oxygen.
2. Thaum lub PCB Circuit Court board nkag mus rau hauv reflow soldering rwb thaiv tsev cheeb tsam, lub PCB thiab Cheebtsam yog tag nrho preheated los tiv thaiv PCB los ntawm dheev nkag mus rau qhov kub ntawm qhov chaw vuam thiab ua puas rau PCB thiab cov khoom.
3. Thaum lub PCB nkag mus rau hauv qhov chaw reflow soldering, qhov kub thiab txias tau nce sai heev kom cov tshuaj txhuam hniav mus txog lub xeev molten, thiab cov kua nplaum ntub dej thiab diffuses cov ntaub qhwv, cov khoom xaus thiab cov pins ntawm PCB, thiab cov kua tin reflows thiab sib tov. los tsim cov pob qij txha.
4. Lub PCB nkag mus rau hauv qhov chaw reflow txias, thiab cov kua tin yog reflowed kom solidify cov pob qij txha los ntawm cov cua txias ntawm reflow soldering;Nyob rau lub sijhawm no, reflow soldering tiav.
Tag nrho cov txheej txheem ua hauj lwm ntawm reflow soldering yog inseparable los ntawm cov cua kub nyob rau hauv lub reflow rauv.Reflow soldering cia siab rau qhov kev txiav txim ntawm cov cua kub ntws ntawm cov pob qij txha.Lub jelly-zoo li flux dhau lub cev cov tshuaj tiv thaiv nyob rau hauv ib tug tej yam kub kub cua ntws mus cuag SMD soldering;reflow soldering ""Reflow" yog vim hais tias cov roj circulates rov qab mus rau hauv lub vuam tshuab los ua kom kub kub kom ua tiav lub hom phiaj ntawm vuam, yog li nws yog hu ua reflow soldering.
Post lub sij hawm: Nov-03-2022