SMT xaiv thiab qhov chaw yog lub zog ntawm kev lag luam hluav taws xob uas muaj zog, thiab tau ua haujlwm zoo rau kev tsim kho hluav taws xob. Xaiv thiab qhov chaw yuav tsum tau siv cov tshuaj txhuam hniav ua cov khoom siv, thiab cov tshuaj txhuam hniav yog SMT xaiv thiab qhov chaw tsim nyog. Yog li dab tsi yog lub luag haujlwm ntawm solder paste? Hnub no ntawm lub ncauj lus no los pib cov lus piav qhia.
Dab tsi yog solder paste?
Daim ntawv ntawm solder paste yog zoo ib yam li muab tshuaj txhuam, viscous, feem ntau muab cia rau hauv lub tub yees (yog tias muab tso rau hauv ib qho chaw sov so, qhov muab tshuaj txhuam yuav raug kho, cuam tshuam rau kev siv ib txwm siv ntawm cov tshuaj txhuam hniav), hauv kev siv cov kev xav tau. Nws yuav tsum tau muab tshem tawm ua ntej rov qab mus rau qhov kub thiab txias thiab tom qab ntawd los ntawm kev nplawm thiab tom qab ntawd siv (stirring yog ua kom cov alloys ntawm tin hmoov thiab flux mus rau tag nrho sib koom ua ke, vim hais tias cov muab tshuaj txhuam nyob rau hauv ib lub sij hawm ntev tom qab tso cov khoom ntawm tin. hmoov yuav precipitated rau hauv qab).
Kev sib xyaw ntawm solder paste
Solder paste yog ib qho muab tshuaj txhuam, solder paste yog tin hmoov alloy hais thiab flux muaj pes tsawg leeg, tin hmoov tuaj yeem siv raureflow soldering tshuabKub yaj soldering ntawm cov khoom siv hluav taws xob, flux muaj cov resin rosin, active agents, thickeners thiab solvents, nyob rau hauv lub ntsiab nyob rau hauv lub reflow soldering lub sij hawm los ua ib tug txawv lub luag hauj lwm (xws li active agents nyob rau hauv lub soldering yuav ntxuav tau soldering stains thiab oxides, yog li ntawd. uas soldering tag nrho thiab sib npaug thiab ci ntsa iab, tus neeg sawv cev thickening thiaj li ua kom cov nplaum nplaum nplaum).
Lub luag haujlwm ntawm solder paste
Lub luag hauj lwm ntawm solder paste muaj ob lub ntsiab lus tseem ceeb, ntsig txog, yogxaiv thiab tso tshuabtuaj yeem lo rau cov khoom siv hluav taws xob, qhov sib txawv ntawm qhov vuam tuaj yeem yaj tom qab cov khoom siv hluav taws xob tau tsau rau hauv lub ncoo.
Lub flux nyob rau hauv lub solder paste muaj resin rosin, active neeg sawv cev, thickener thiab hnyav.
Nta ntawm NeoDen FP2636 stencil tshuab luam ntawv
1. T ntsia hlau pas nrig regulating kov, xyuas kom meej kev hloov kho thiab theem ntawm PCB tsau dav hlau, yam tsawg kawg nkaus lead suab tiav 1 hli.
2. Adjustable roj hmab footing, xyuas kom meej lub flatness thaum ua hauj lwm.
3. Daim ntawv cim rau txhua tus tswj tuav, zoo dua thiab yooj yim rau kev khiav lag luam.
4. Rulers ntawm stencil tsau thav duab rau cov kab siv, xyuas kom meej cov theem ntawm stencil thiab PCB.
5. Ncaj nraim damping ncej, xyuas kom cov stencil tsau ncej yuav fastened ntawm random cov ces kaum, los txhim kho yooj yim thaum khiav hauj lwm.
6. Kev them nyiaj yug rau ib sab nrog rau ob sab PCB.