Etching board hydrogen peroxide thiab citric acid: cov zauv nqi subtleties

Etching board hydrogen peroxide thiab citric acid - daim ntawv qhia yog tshwj xeeb yog nrov nrog amateur xov tooj cua. Nws tsis yog tsuas yog ceev ceev, tab sis kuj tus tov txoj kev uas yuav tau npaj rau soldering ntsiab ntawm lub neej yav tom ntej kev ntsuas canvas.

Yuav ua li cas etched board nyob rau hauv lub yav dhau los?

Yav tas los, los mus ua kom cov ntawv luam Circuit Court board, nws yuav tsum tau ib tug ntau ntawm kev rau siab. Thawj Circuit Court bred rau ntawm daim ntawv, ces ib tug dawb paug punch thiab ces kis mus rau lub lem rau lub PCB los yog ntawv ci getinaks, siv cov xim muaj hlau khoom. Tom qab so qhuav dua tawm nws txheej, thiab lub Rooj Tswjhwm Saib tau raus rau hauv ib lub taub ntim rau etching lub tiaj nyom.

Qhov nyuaj tshaj plaws yog rau tshuaj lom nqi. Txij li thaum rau lub hom phiaj no rau ntawm lub hauv paus uas yog tiaj nras siv ferric chloride. Lub xov tooj cua lub tsev kawm ntawv xws twb tsis scarce, tiam sis ntawm no nyob rau hauv tsev tau mus nrhiav rau ib tug lwm txoj, raws li yog feem ntau ua bluestone.

board ua nqa nrog nws lwm daim card: lub Rooj Tswjhwm Saib yog etched unevenly. Ib txhia kev corrodes, thiab nyob rau hauv ib txhia qhov chaw hauv lub nto nedotravlivalas. Tag nrho vim hais tias ntawm lub inexperience ntawm craftsmen los yog reusable Luzhny tshuaj.

Niaj hnub nimno txoj kev ua boards

Etching board hydrogen peroxide thiab citric acid yog tsis yog ib tug novelty. Muaj coob tus tau hnov txog qhov no txoj kev ua ntej. By xaiv qhov kev xaiv no board kev cob qhia, koj yuav nrhiav tau tsis muaj zoo dua piv nrog etching nyob rau hauv ferric chloride. Piv txwv li, ua zoo, kev ruaj ntseg thiab ib puag ncig peroxide nyob rau hauv ua ke nrog nrog ib tug oxidant.

Daim ntawv qhia card ua lub tsev

Tag nrho cov uas yuav tsum tau nyob rau hauv thiaj li yuav ua etching ntawm lub Rooj Tswjhwm Saib ntawm hydrogen peroxide thiab citric acid, yuav muaj nyob rau hauv nws cov tshuaj txee thiab nyob rau hauv lub chav ua noj, los yog yuav tau tsis muaj teeb meem. Lwm cov kom zoo dua ua rau cov laug cam nyob rau hauv xws li ib tug txoj kev - tus nqi ntawm cov khoom xyaw rau ua ib tug tov. Qhov ntawd yog lwm kom zoo dua ntawm hydrogen sib tov - nws yuav tsum tau npaum li cas cheaper ferric chloride.

tivthaiv muaj pes tsawg leeg

• Hydrogen peroxide 3% th - 100 ml.
• Citric acid - 30 grams.
• Sodium chloride - 5 grams (ib tug pab tivthaiv ntawm cov tshuaj tiv thaiv).
• Dej (yog tias tsim nyog).

Tseem Ceeb! Tshuaj npaj nyob rau hauv xws proportions txaus rau kos cov tooj liab ci ntawm thickness 35 microns thiab ib cheeb tsam ntawm 100 sq. cm.

npaj board

1. Kos thiab sau nqi.
2. Txiav tawm qhov yuav tsum tau loj daim PCB.
3. Hloov lub toner rau lub PCB thiab cia tsau, ces tshem tawm.

Yuav ua li cas npaj ib tug tov?

1. Preheat hydrogen peroxide: muab lub raj mis nyob rau hauv ib tug dej da dej thiab tos kom txog thaum lub kub ntawm lub ob yam ua ke.
2. Siv ib khob. Tej haum, tiam sis tsis hlau.
3. Ncuav peroxide preheated mus rau ib tug huv si thiab qhuav lub lauj kaub vsypte citric acid.
4. Tov zoo.
5. Thaum stirring, ntxiv ntsev, uas ua raws li ib lub hauv paus tshuaj.

Yuav ua li cas rau kos lub Rooj Tswjhwm Saib?

Yuav kom kos lub Rooj Tswjhwm Saib hydrogen peroxide thiab citric acid dhau sai sai, koj muaj peev xwm siv ob ntim. Cias muab tus me muaj peev xwm tiaj nyom mus rau hauv lub loj ntim thiab ncuav dej kub rau hauv nws. Qhov no yuav kom thiab txhim khu cov txheej txheem.

Etching board nyob rau hauv p-D hydrogen peroxide yog ua raws li nram no: xwb muab tso rau hauv ib lub tiaj nyom sab uas lem yog twv sau mus rau cov hniav lwj khoom uas yooj yim lowered mus rau hauv qab ntawm lub thawv. Rau cov tshuaj tiv thaiv yog ntau yam tshuaj yuav tsum yog los ntawm lub sij hawm rau lub sij hawm mus do me ntsis. Tag nrho cov txheej txheem yuav siv sij hawm tsawg tshaj li 10 feeb.

Thaum kawm tiav ntawm cov yeeb tshuaj xas xwb yuav tsum tau neutralized thiab rinsed nyob rau hauv khiav dej.

Qhov no txoj kev ntawm kev them nyiaj yog kev ruaj ntseg kiag kev kho mob. Ua them nyiaj tam sim no tau tom hauj lwm, tom tsev thiab nyob rau hauv lub chaw ua hauj lwm thiab ua hauj lwm nrog tsis zoo reagents nyob rau tib lub sij hawm yog tsis tsim nyog.

Tseem Ceeb! Yog hais tias cov tshuaj yog ntau npaum li cas ua npuas ncauj, lub ntsev koj thrashed heev npaum li cas. Meanly ntau peroxide, txwv tsis pub cov tshuaj tiv thaiv yuav muab qhov chaw tshaj active paths tej zaum yuav puas ntsoog.

Yog hais tias qhov tshuaj tiv thaiv koj rub lub rooj tsavxwm thiab saib nws, koj yuav tsis pom ib qho txawv, piv rau li cas cov ntawv luam Circuit Court board etching nyob rau hauv ferric chloride, lawv tsuas ua tsis tau. Lub ntsiab sib txawv - sai sai dua cov tshuaj tiv thaiv thiab tsawg txaus ntshai txheej txheem rau cov tib neeg.

Yuav ua li cas koj puas paub hais tias cov board yog twb etched?

Lub hydrogen-acidic nruab nrab cov tshuaj tiv thaiv hais raws li cov mis: Cu + H3Cit + H2O2 → H [CuCit] + 2H2O. Etching ntawm lub PCB nyob rau hauv lub hydrogen peroxide yuav suav hais tias tag nrho thaum nres tej tshuaj tiv thaiv nyob rau hauv cov tshuaj: nws yog tsis fizzing los yog bubbling.

Lub tiav lawm board yog kev dawb huv thiab ntxuav nrog dej. Toner los yog number case ntxuav nrog acetone. Ces ua tib zoo so board thiab degreased.

Tseem Ceeb! Kos rau lub sam xeeb txog qhov ntawm lub lem ntawm lub Rooj Tswjhwm tom qab kev kho mob. Puas Circuit Court yuav tsis ua hauj lwm.

Raws li koj tau pom, etching board hydrogen peroxide nyob rau hauv lub tsev yog tsis tau tsuas yog ua tau, tab sis kuj muaj kev nyab xeeb. Tsis yooj yim mus nrhiav tau tus tsim nyog cov khoom xyaw rau npaj muaj pes tsawg leeg ntawm lub etching, thiab cov txheej txheem yuav siv sij hawm tsawg tshaj li 15 feeb. Niaj hnub no, txhua txhua lub xov tooj cua pib xyaum ua, ua tsaug rau tej yam yooj yim thiab yog tswv yim yuav xyaum ua tej yam nyob rau tom tsev tsis muaj kev tsim txom rau lawv tus kheej thiab lwm leej lwm tus.