PCB circuit board nyob rau hauv cov txheej txheem ntau lawm, feem ntau ntsib ib co txheej txheem tsis xws luag, xws li PCB Circuit Court board tooj liab hlau tawm phem (kuj feem ntau hais rau pov tooj liab), cuam tshuam cov khoom zoo. Feem ntau yog vim li cas rau PCB Circuit Court board pov tooj liab yog raws li nram no:
PCB Circuit Board txheej txheem txheej txheem
1, tooj liab ntawv etching yog ntau dhau, electrolytic tooj liab ntawv ci siv nyob rau hauv kev ua lag luam feem ntau yog ib leeg-sab galvanized (feem ntau hu ua grey foil) thiab ib sab plated tooj liab (feem ntau hu ua liab ntawv ci), tooj liab feem ntau yog ntau tshaj 70um galvanized. tooj liab ntawv ci, ntawv ci liab thiab 18um hauv qab cov hmoov tshauv tseem ceeb tsis tau ib pawg tooj liab.
2. Kev sib tsoo hauv zos tshwm sim hauv cov txheej txheem PCB, thiab cov hlau tooj liab tau sib cais los ntawm cov substrate los ntawm cov khoom siv sab nraud. Qhov kev tsis zoo no tshwm sim raws li qhov chaw tsis zoo lossis kev taw qhia, kev poob tooj liab yuav muaj qhov cuam tshuam pom tseeb, lossis nyob rau tib qho kev taw qhia ntawm khawb / cuam tshuam. Tshem tawm qhov tsis zoo ntawm cov hlau hlau kom pom cov ntawv ci tooj liab, koj tuaj yeem pom cov xim ib txwm ntawm cov ntawv ci tooj liab, yuav tsis muaj qhov tsis zoo rau kev yaig, tooj liab ntawv ci tev lub zog yog qhov qub.
3, PCB Circuit Court tsim tsis tsim nyog, nrog tuab tooj liab ntawv tsim ntawm cov kab nyias nyias, kuj yuav ua rau cov kab ntau dhau etching thiab tooj liab.
Laminate txheej txheem yog vim li cas
Nyob rau hauv ib txwm muaj xwm txheej, ntev li ntev raws li qhov kub nias qhov kub ntawm lub laminate ntau tshaj 30 feeb, tooj liab ntawv ci thiab ib nrab-kho daim ntawv yog yeej ua ke tag nrho, yog li nias feem ntau yuav tsis cuam tshuam lub binding quab yuam ntawm tooj liab ntawv ci thiab substrate nyob rau hauv laminate. Txawm li cas los xij, nyob rau hauv cov txheej txheem ntawm laminate stacking thiab stacking, yog PP muaj kuab paug los yog tooj liab foil nto puas, nws tseem yuav ua rau tsis txaus lub zog sib txuas ntawm tooj liab ntawv ci thiab substrate tom qab laminate, uas ua rau qhov chaw (tsuas yog rau lub phaj loj) los yog sporadic tooj liab hlau. poob, tab sis lub zog stripping ntawm tooj liab ntawv nyob ze ntawm txoj kab stripping yuav tsis txawv txav.
Laminate raw khoom vim li cas
1, zoo tib yam electrolytic tooj liab ntawv ci yog galvanized los yog tooj liab-plated cov khoom, yog hais tias lub ncov tus nqi ntawm cov ntaub plaub foil ntau lawm txawv txav, los yog galvanized / tooj liab plating, txheej dendritic phem, ua rau tooj liab ntawv ci nws tus kheej tev lub zog tsis txaus, cov ntawv ci tsis zoo. pressed board ua los ntawm PCB plug-in nyob rau hauv lub electronics Hoobkas, tooj liab hlau yuav poob los ntawm lwm yam kev cuam tshuam. Qhov zoo ntawm qhov phem stripping tooj liab hlau tooj liab ntawv ci nto (uas yog, kev sib cuag nrog lub substrate) tom qab pom tseeb sab erosion, tab sis tag nrho nto ntawm tooj liab ntawv ci tev lub zog yuav tsis zoo.
2. Kev hloov pauv tsis zoo ntawm cov ntawv ci tooj liab thiab cov resin: qee cov laminates nrog cov khoom tshwj xeeb tau siv tam sim no, xws li HTg daim ntawv, vim muaj cov txheej txheem sib txawv, tus neeg saib xyuas siv feem ntau yog PN resin, resin molecular saw qauv yog yooj yim, qis crosslinking degree thaum kho, siv tshwj xeeb ncov tooj liab ntawv ci thiab phim. Thaum cov txheej txheem ntawm laminate siv tooj liab ntawv nyiaj thiab cov resin system tsis sib xws, ua rau cov ntawv hlau ntawv ci tev lub zog tsis txaus, plug-in tseem yuav tshwm sim tsis zoo tooj liab xaim.
Tsis tas li ntawd, nws yuav yog qhov kev vuam tsis zoo hauv cov neeg siv khoom ua rau poob ntawm qhov vuam ncoo (tshwj xeeb tshaj yog ib leeg thiab ob lub vaj huam sib luag, cov laug cam muaj ntau qhov chaw hauv pem teb, ceev cua sov dissipation, vuam kub siab, nws tsis yooj yim heev. los poob):
● Rov ua dua ib qho chaw yuav welding lub ncoo tawm;
● High kub ntawm soldering hlau yog ib qho yooj yim rau weld tawm ntawm lub ncoo;
● Lub zog ntau dhau los ntawm lub taub hau ntawm lub taub hau ntawm lub ncoo thiab lub sijhawm vuam ntev dhau lawm yuav ua rau lub ncoo tawm.