Lub ntsej muag solder raug thiab txheej txheem kev loj hlob nyob rau hauv lub PCB pawg thawj coj saib Cov txheej txheem tsim khoom yog PCB pawg thawj coj saib nrog lub npog ntsej muag tom qab luam ntawv. Npog cov ntaub qhwv rau ntawm lub rooj tsavxwm PCB nrog diazo zaj duab xis kom lawv tsis txhob raug irradiated los ntawm ultraviolet lub teeb thaum lub sij hawm raug txheej txheem, thiab solder tiv thaiv txheej yog nruj nreem txuas rau PCB nto tom qab ultraviolet irradiation, thiab cov ntaub qhwv tsis raug. rau ultraviolet lub teeb. Lub teeb irradiation tuaj yeem nthuav tawm cov ntaub qhwv tooj liab kom cov hmoov txhuas thiab cov tin tuaj yeem siv thaum lub sij hawm cua kub theem.

Lub hom phiaj ntawm lub rooj tsav xwm Circuit Court raug yog irradiate thiab thaiv los ntawm ultraviolet lub teeb. Cov pob tshab ntawm cov yeeb yaj kiab thiab cov yeeb yaj kiab qhuav tau txais cov tshuaj tiv thaiv optical polymerization, uas yog, nyob rau hauv ultraviolet lub teeb irradiation, photoinitiator absorbs lub teeb lub zog thiab decomposes rau hauv dawb radicals, thiab cov dawb radicals pib lub teeb dua. Lub polymerized monomer undergoes polymerization thiab cross-linking cov tshuaj tiv thaiv, thiab tsim ib tug macromolecular qauv insoluble nyob rau hauv dilute alkali tov tom qab cov tshuaj tiv thaiv. Cov yeeb yaj kiab yog xim av, lub teeb ultraviolet tsis tuaj yeem nkag mus, thiab cov yeeb yaj kiab tsis tuaj yeem raug kho qhov muag polymerization nrog nws cov yeeb yaj kiab qhuav. Kev raug mob feem ntau yog ua nyob rau hauv ib lub tshuab tsis siv neeg kis ob sab.

Muaj ob hom kev raug: Circuit Court raug thiab solder daim npog qhov ncauj. Lub luag haujlwm yog los kho cov cheeb tsam hauv cheeb tsam irradiated los ntawm ultraviolet lub teeb irradiation, thiab tom qab ntawd txhim kho nws los ua ib qho qauv Circuit Court los yog cov qauv solder.

Cov txheej txheem ntawm kev raug hluav taws xob yog muab cov yeeb yaj kiab photosensitive rau ntawm lub rooj tsav xwm tooj liab, thiab tom qab ntawd muab tso ua ke nrog cov qauv Circuit Court tsis zoo thiab nthuav tawm nws nrog ultraviolet rays. Lub photosensitive zaj duab xis irradiated los ntawm ultraviolet rays yuav undergo polymerization cov tshuaj tiv thaiv. Cov yeeb yaj kiab photosensitive ntawm no tuaj yeem tiv taus Na2CO3 tsis muaj zog alkali thaum lub sijhawm kev loj hlob. Cov tshuaj ntxuav tawm, thiab qhov tsis hnov ​​​​tsw yuav raug ntxuav tawm thaum lub sij hawm kev loj hlob. Nyob rau hauv txoj kev no, cov qauv hauv Circuit Court ntawm cov yeeb yaj kiab tsis zoo tau ua tiav tiav mus rau lub rooj tsav xwm tooj liab clad;

Cov txheej txheem ntawm solder lub npog ntsej muag yog tib yam: siv cov xim pleev xim rau ntawm lub rooj tsav xwm hauv Circuit Court, thiab tom qab ntawd npog thaj chaw uas yuav tsum tau soldered thaum raug, kom cov ntaub qhwv tau nthuav tawm tom qab kev txhim kho.