1. Reflow soldering qhov cubhuab cua ntws system: siab cua convection efficiency, nrog rau ceev, txaus, fluidity thiab nkag mus.
2. SMT vuam tshuab cua sov system: cua kub lub cev muaj zog, cua sov raj, thermocouple, solid-state relay, kub tswj ntaus ntawv, thiab lwm yam.
3. Reflow soldering kis tau tus mob: suav nrog kev taw qhia kev tsheb nqaj hlau, mesh siv (kev txhawb nqa nruab nrab), saw, thauj lub cev muaj zog, taug qab qhov dav hloov qauv, thauj ceev tswj mechanism thiab lwm yam.
4. Reflow qhov cubcua txias system: nws tuaj yeem txias PCB sai sai tom qab cua sov, feem ntau nyob rau hauv ob txoj kev: cua txias thiab dej txias.
5. Nitrogen tiv thaiv qhov system ntawm reflow soldering: PCB yog nitrogen tiv thaiv nyob rau hauv lub preheating cheeb tsam, vuam cheeb tsam thiab txias cheeb tsam nyob rau hauv tag nrho cov txheej txheem, uas yuav tiv thaiv oxidation ntawm solder sib koom tes thiab tooj liab ntawv ci nyob rau hauv high kub, txhim khu lub wetting muaj peev xwm ntawm melting muab tub lim hlau. , txo cov kab noj hniav thiab txhim kho qhov zoo ntawm kev sib koom ua ke.
6. Reflow soldering flux rov qab chav tsev: flux nyob rau hauv cov khib nyiab roj rov qab system feem ntau muaj cov evaporator, los ntawm cov evaporator yuav tso (vuam pab volatiles) rhuab mus rau saum toj 450 ℃, cov flux volatile teeb meem gasification, ces dej txias tshuab tom qab dej txias ncig. Tom qab evaporation, cov dej ntws los ntawm lub kiv cua sab saud, tsim cov kua ntws los ntawm cov evaporator txias rau lub tank rov qab.
7. Reflow soldering khib nyiab kho thiab cov cuab yeej rov qab: lub hom phiaj ntawm peb lub ntsiab lus: kev tiv thaiv ib puag ncig, tsis txhob cia cov flux volatiles ncaj qha tawm mus rau hauv huab cua;Lub solidification thiab nag lossis daus ntawm cov pa khib nyiab hauv vuam yuav cuam tshuam rau cov cua kub ntws thiab txo cov convection efficiency, yog li nws yuav tsum tau siv dua.Yog tias xaiv nitrogen vuam, txhawm rau txuag nitrogen thiab rov ua dua nitrogen, yuav tsum tau nruab ib lub tshuab hluav taws xob rov qab.
8. Cua siab raising ntaus ntawv ntawm reflow welding cap: nws yog ib qho yooj yim los ntxuav lub vuam chamber.Thaum lub tshuab reflow vuam yuav tsum tau muab ntxuav thiab khaws cia, los yog thaum lub phaj ntog thaum lub sij hawm tsim khoom, lub hau ntawm lub reflow rauv yuav tsum tau qhib.
9. Reflow soldering tso pa tawm: yuam cov pa tawm tuaj yeem ua kom cov dej ntws zoo, tshwj xeeb tso pa pom, ua kom cov huab cua huv hauv qhov chaw ua haujlwm, txo cov pa paug rau cov pa tso pa.
10. Cov qauv qauv ntawm reflow soldering: nrog rau cov duab, cua sov seem thiab cov khoom siv cua sov ntev.
Post lub sij hawm: Lub Xya hli ntuj-16-2021