Cov tooj liab hlau poob los ntawm PCB (tseem hu ua tooj liab pov tseg) tsis zoo. Cov chaw tsim khoom PCB hais tias laminate yog qhov teeb meem thiab xav kom lawv cov chaw tsim khoom los dais qhov tsis zoo. Raws li kuv xyoo ntawm cov neeg siv khoom tsis txaus siab tuav kev paub, qhov laj thawj rau PCB Hoobkas tooj liab pov tseg yog raws li hauv qab no.

I. PCB lub tsev tsim khoom txheej txheem txheej txheem:

1. tooj liab cov ntawv ci ntau dhau, cov ntawv tooj liab tooj liab uas siv hauv khw yog feem ntau ib leeg ib sab (feem ntau hu ua ashing ntawv ci) thiab ib leeg ib sab tooj liab plating (feem ntau hu ua ntawv ci liab), cov tooj liab pov tseg feem ntau ntau dua 70um galvanized tooj liab ntawv ci, ntawv ci liab thiab 18um hauv qab ashing ntawv ci tsis muaj pob tooj liab pov tseg. Thaum cov neeg siv khoom tsim qauv zoo dua li cov kab kos, yog tias cov ntawv ci tooj liab tau hloov pauv thiab cov cim tsis hloov pauv, cov ntawv ci tooj liab nyob hauv cov kua nplaum ntev dhau. Vim tias zinc yog cov hlau nquag, thaum cov tooj liab tooj liab ntawm PCB tau raus rau hauv cov tshuaj sib tov tau ntev, nws yuav dhau mus ua rau cov kab ya ntau dhau, ua rau qee txoj kab zoo rov qab txheej zinc tau ua tiav tawm thiab cais los ntawm cov khoom siv hauv paus , uas yog, cov tooj liab tooj liab poob. Lwm qhov xwm txheej yog tias tsis muaj teeb meem nrog ETCHING tsis ntawm PCB, tab sis cov tshuaj txhuam tau raug ntxuav tom qab kos thiab qhov ziab tsis zoo, ua rau cov tooj liab tooj liab kuj tseem nyob ib puag ncig los ntawm cov kua nplaum uas seem ntawm SURFACE ntawm PCB. Yog tias nws tsis kho tau ntev, cov hlau tooj liab yuav raug corroded ntau dhau thiab tooj liab yuav raug pov tseg. Kev ua tau zoo ntawm qhov xwm txheej zoo li no tau tsom mus rau hauv cov kab zoo, lossis lub caij huab cua ntub, tag nrho PCB yuav tshwm sim zoo ib yam, tshem tawm cov tooj liab kom pom nws thiab cov hauv paus hauv paus interface (thiaj li hu ua coarsening nto) xim tau hloov, tsis zoo li cov xim tooj liab ib txwm, yog kom pom lub hauv paus qub xim tooj liab, cov kab tuab ntawm cov ntawv ci tooj liab tev lub zog kuj zoo ib yam.

2. Hauv PROCESS ntawm PCB, kev sib tsoo hauv zos tshwm sim, thiab cov xaim tooj liab tau sib cais los ntawm cov khoom siv los ntawm cov cuab yeej sab nraud. Qhov kev ua tau zoo uas tsis xav tau yog qhov chaw tsis zoo lossis cov lus qhia, cov xaim tooj liab xoob yuav muaj qhov cuam tshuam tsis meej, lossis nyob rau tib qho kev taw qhia ntawm kos/cuam tshuam. Tev cov tooj liab ntawm qhov chaw tsis zoo kom pom cov ntawv ci tooj liab cov plaub hau, koj tuaj yeem pom tias cov xim ntawm cov ntawv ci tooj liab cov plaub hau yog qhov ib txwm muaj, yuav tsis muaj qhov tsis zoo los ntawm yaig, thiab cov tooj liab ntawv ci lub zog yog qhov ib txwm muaj.

3. PCB tsim qauv tsim tsis tsim nyog, nrog cov ntawv tooj liab tuab tsim cov kab hluav taws xob nyias nyias, kuj tseem yuav ua rau cov hluav taws xob ntau dhau thiab cov tooj liab pov tseg.

Ob, txheej txheej txheej txheej txheej:

Raws li qhov xwm txheej ib txwm muaj, tsuav yog laminate raug nias ntawm qhov kub siab ntau dua 30 feeb, cov ntawv ci tooj liab thiab cov ntawv kho ib nrab yog qhov sib xyaw ua ke tag nrho, yog li qhov kev nias feem ntau tsis cuam tshuam rau kev khi ntawm tooj liab ntawv ci thiab substrate nyob rau hauv lub laminate. Txawm li cas los xij, hauv txheej txheej ntawm txheej txheej txheej thiab txheej txheej, yog PP muaj kuab paug lossis puas tsuaj ntawm tooj liab cov plaub hau saum npoo av kuj tseem yuav ua rau tsis muaj kev sib khi ruaj khov ntawm cov ntawv ci tooj liab thiab cov khoom siv hauv paus tom qab lamination, ua rau pom qhov chaw (tsuas yog rau cov phaj loj) lossis cov tooj liab tsis tu ncua ntog tawm, tab sis yuav tsis muaj cov ntawv tooj liab tsis txawv txav ua rau lub zog nyob ze ntawm qhov ntsuas tawm ntawm kab.

Peb, laminate raw khoom:

1. cov lus hais los saum toj no dav dav electrolytic tooj liab ntawv MAO ntawv ci galvanized lossis tooj liab plating cov txheej txheem cov khoom lag luam, thaum MAO cov ntawv ci ntau lawm tsis txawv txav, lossis zinc/tooj liab plating, txheej dendrite, tev lub zog ntawm cov ntawv ci tooj liab nws tus kheej tsis txaus, ua rau los ntawm cov ntawv tsis zoo tom qab nias daim ntawv ua PCB cov khoom siv hluav taws xob hauv lub Hoobkas ntsaws, tooj liab xaim poob los ntawm kev poob siab sab nraud yuav tshwm sim. Hom tooj liab tsis zoo hle tooj liab xaim kom pom cov tooj liab cov plaub hau saum npoo (uas yog, qhov chaw tiv tauj nrog cov khoom siv hauv paus) yuav tsis pom tseeb sab yaig, tab sis tag nrho saum npoo ntawm tooj liab ntawv ci tev lub zog yuav tsis zoo.

2. kev hloov pauv ntawm cov ntawv tooj liab thiab cov tshuaj tsis zoo: qee qhov kev ua haujlwm tshwj xeeb laminate siv tam sim no, xws li daim ntawv HTg, vim tias txheej txheej txheej tsis zoo ib yam, tus neeg sawv cev tua kab mob feem ntau yog PN cob, cov txheej txheem txheej txheej molecular yooj yim, kev sib txuas qib qis thaum kho, raug khi kom siv cov ntawv ci tooj liab tshwj xeeb thiab sib phim. Thaum tsim cov laminate siv cov ntawv ci tooj liab thiab cov txheej txheem txheej tsis sib xws, ua rau cov phaj npog cov ntawv ci hlau ua kom lub zog tsis txaus, ntsaws-hauv kuj tseem yuav pom cov tooj liab tooj liab tsis zoo.