Yuav Ua Li Cas PCB Hauv Tsev.: 7 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Nov yog cov lus qhia yuav ua li cas thiaj ua lub rooj tsav xwm hauv tsev.

Nws siv sijhawm li ib teev thiab koj muaj tus kheej tsim pcb.

Koj tseem tuaj yeem saib kuv cov vis dis aus ntawm You Tube.

Kauj Ruam 1: Ua Daim npog ntsej muag

Luam ib daim duab pcb ntawm zaj duab xis pob tshab. Luam ob daim duab tib yam.

Muab lawv tso ua ke, kho kom zoo thiab kab xev ua ke. Cov pob tshab yuav tsum tsis zoo.

Txhua qhov chaw pob tshab yog thaj chaw tooj liab zaum kawg. Txhua qhov chaw dub tau ploj mus.

Koj tau txais qhov txiaj ntsig zoo tshaj plaws thaum luam daim duab kom cov kua number case tawm tsam rau pcb tooj liab (saib daim duab).

Qee zaum koj yuav tsum luam tawm daim iav tsom iav. Feem ntau nws txhais tau tias yog tias sab tooj liab yog hauv qab, luam tawm ib txwm duab thiab yog tias sab tooj liab nyob saum, luam daim duab tsom iav.

Kauj Ruam 2: Ntxuav Pcb

Yog tias muaj roj nyob saum npoo ntawm PCB, ntxuav nws nrog cov kuab tshuaj.

Txhua qhov cawv raws li kev xaiv zoo, piv txwv isopropanol.

Tom ntej tshem tag nrho cov oxide siv cov ntaub plaub.

Tam sim no saum npoo yuav tsum huv thiab ci.

Kauj Ruam 3: Zaj Duab Xis Tshaj Plaws

Thaum siv Cov Zaj Duab Qhuav, siv tsuas yog lub teeb uas tsis muaj UV tawg.

Tshem cov yeeb yaj kiab tiv thaiv. Kuv qhov kev paub qhia tau tias cov cuab yeej kho hniav zoo tshaj plaws rau qhov no.

Ntse rab koob ua haujlwm ib yam nkaus.

Muab cov zaj duab xis Qhuav saum pcb. Tshem tag nrho cov huab cua.

Ua kom sov sov nrog lub tshuab ziab plaub hau lossis rab phom cua sov.

Tam sim no zaj duab xis qhuav ua raws li pcb. Yog tias zaj duab xis tsis lo rau pcb, cua sov qis dhau lossis lub sijhawm luv dhau.

Kauj ruam 4: Raug

Koj tuaj yeem yuav cov cuab yeej nthuav tawm lossis ua koj tus kheej. Ib qho kev xaiv yooj yim yog siv daim ntawv iav thiab teeb rau saum nws. Qhov xwm txheej tsuas yog tias lub teeb tawm hluav taws xob ultraviolet.

Lub sijhawm tso tawm feem ntau yog ob peb feeb mus rau ob peb feeb, lub sijhawm nyob ntawm lub teeb lub zog thiab nrug deb ntawm lub pcb. Kuv tus kheej lub cuab yeej raug tsim los ntawm lub tshuab luam ntawv qub thiab lub ntsej muag solarium.

Nws ua haujlwm tau zoo, lub sijhawm raug tsuas yog 15 vib nas this.

Thiab qhov tshwm sim ……. Tau qhov npog qhov ncauj tawm tsam rau pcb thiab hloov lub teeb rau. Thaum lub sijhawm puv puv hloov lub teeb tawm. Yog tias txhua yam mus raws li nws yuav tsum tau, cov duab zoo ib yam li daim npog ntsej muag tshwm rau ntawm lub phaj (zoo li hauv daim duab).

CEEB TOOM !!!! uv lub teeb yog qhov txaus ntshai rau lub qhov muag, siv cov tsom iav uas tsim nyog (thaiv uv), tsis txhob saib lub teeb lossis npog qhov chaw raug.

Kauj Ruam 5: Kev txhim kho

Tshem tawm zaj duab xis tiv thaiv thib ob los ntawm sab saum toj ntawm pcb.

Muab lub pcb tso rau hauv ib lub taub ntim nrog 1.5% sodium carbonate tov.

Sodium carbonate (Na2CO2) tseem hu ua soda tshauv thiab ntxuav dej qab zib.

Hauv ob peb feeb thiab pcb yuav tsum zoo ib yam li hauv daim duab.

Txhua qhov chaw yuav tsum tau kos yog ntxuav los ntawm zaj duab xis qhuav.

Yog tias qee yam ploj lawm ntawm pcb, nws tuaj yeem kho nrog tus cim ruaj khov.

Hauv daim duab, tsab ntawv H tau kho tas lawm.

Tsis txhob hnov qab hnav cov hnab looj tes tiv thaiv thiab tsom iav thaum siv tshuaj lom neeg.

Kauj ruam 6: Etching

Muab lub pcb tso rau hauv lub thawv nrog 15-25% ferric chloride tov.

Yog tias koj xav kom nrawm cov txheej txheem no, sov cov kua.

Cov kua tuaj yeem siv ntau zaus, yog li tsis txhob muab pov tseg.

Cov txheej txheem yuav siv sijhawm li 15 feeb. Thaum kawg yaug zoo.

Nco ntsoov cov hnab looj tes tiv thaiv thiab tsom iav thaum siv tshuaj lom neeg.

Kauj Ruam 7: Tev Cov Qhuav Zaj Duab Xis

Lub sijhawm no tseem siv hnab looj tes tiv thaiv thiab tsom iav.

Muab lub pcb tso rau hauv lub thawv nrog 5% sodium hydroxide tov.

Sodium hydroxide, tseem hu ua caustic soda thiab lye.

Cov txheej txheem yuav siv sijhawm li ib lossis ob feeb thiab cov zaj duab xis qhuav yog tev tawm.

Yaug kom zoo thiab pcb tau npaj rau kev khawb thiab siv.