PCB (Printed Circuit Board) machira anoita basa rakakosha mukudzivirira maseketi kubva kune dzakaomarara dzekunze nharaunda. Zvisinei, mune dzimwe nguva, zvingave zvakakodzera kubvisa PCB coating kuti kugadzirisa kana kugadzirisa zvinangwa. Mugwaro rino rakazara, tichakufambisa iwe nematanho ekubvisa zvakachengeteka uye nemazvo maPCB ekuputira. Nemaitiro akakodzera uye maturusi, unogona kubudirira kubvisa iyo yekuputira pasina kukonzeresa chero kukuvadza kune yakatetepa yedunhu.
1. Nzwisisa PCB coating
Usati wanyura mukati mekubvisa maitiro, zvakakosha kuti unzwisise mhando dzePCB coatings dzaungangosangana nazvo. Zvipfeko zvakajairika zvinosanganisira acrylic, epoxy, polyurethane, silicone, uye parylene. Rudzi rumwe norumwe rune maitiro arwo uye runoda maitiro ekubvisa chaiwo. Usati watanga nzira yekubvisa, zvakakosha kuti uone iyo yekupfeka inoshandiswa paPCB kuve nechokwadi chekuti nzira yakakodzera inoshandiswa.
2. Chengetedzo Yekuchengetedza
Kuchengetedzeka kunofanirwa kuve kwekutanga kwako paunenge uchishanda nePCB coatings. Iva nechokwadi chekupfeka magirazi, magirovhosi, uye mask yekufema kuti uzvidzivirire kubva kuhutsi hwemakemikari. Zvakare, shanda munzvimbo ine mhepo inofefetera kuti uderedze kusangana nezvinhu zvine njodzi. Chengetedza chekudzimisa moto padyo uye tevera mirairo yese yekuchengetedza uye mirairo inopihwa nemugadziri wependi.
3. Sarudza chishandiso chakakodzera
Kuti unyatso bvisa PCB coating, unoda yakasarudzika seti yezvishandiso. Izvi zvinogona kusanganisira zviteshi zvemhepo inopisa, pfuti dzekupisa, ironing irons, mapanga chaiwo, uye PCB yekuchenesa mhinduro. Kusarudzwa kwechishandiso kunoenderana nerudzi rwekupfeka uye ukuru hwenzvimbo yaunoda kubvisa.
4. Nhanho-nhanho yekudzima maitiro
- Nhanho 1: Gadzirira PCB nekubvisa chero zvinhu, zvinongedzo kana waya zvinogona kukanganisa maitiro ekubvisa coating.
- Nhanho yechipiri: Sarudza rudzi rwekupfeka. Acrylic uye epoxy coatings inogona kazhinji kunyoroveswa uye kubviswa uchishandisa kupisa pfuti kana inopisa air rework station. Silicone kana parylene coatings, kune rumwe rutivi, inogona kuda makemikari strippers kana specialty solvents.
- Danho rechitatu: zvinyoronyoro kupisa coating uchishandisa nzira yakakodzera, kuve nechokwadi kuti usapisa kana kukuvadza PCB.
- Nhanho 4: Uchishandisa banga chairo kana chimwe chishandiso chakakodzera, nyatso kukwenya iyo yakapfava yakapfava. Chenjerera kuti usakuvadza dunhu riri pasi.
- Nhanho yechishanu: Mushure mekubvisa yakawanda yekuvhara, shandisa PCB yekuchenesa mhinduro kubvisa chero zvakasara kana zvisaririra zvezvasara.
- Danho rechitanhatu: Shamba PCB zvakakwana ne isopropanol kana deionized mvura kubvisa chero yekuchenesa mhinduro yakasara.
- CHECHI 7: Bvumira PCB kuti iome zvachose isati yabatanidza zvakare kana kuita chero rimwe basa.
5. Chengetedzo mushure mekubviswa
Mushure mekubudirira kwePCB coating kubviswa, zvakakosha kuti uongorore bhodhi kune chero kukuvara kunogona kuitika. Tarisa uone chero yakasimudzwa kana yakakuvadzwa trace, yakatyoka vias, kana kukuvara zvinhu. Kana paine matambudziko akawanikwa, anofanirwa kugadziriswa asati aenderera mberi nebasa.
Kubvisa PCB coating kunoda moyo murefu, kunyatsojeka uye maturusi akakodzera. Nekutevera nhanho-ne-nhanho maitiro anotsanangurwa mugwaro iri, unogona zvakachengeteka uye zvinobudirira kubvisa machira kubva kuPCBs. Rangarira kungwarira, kutevedzera mirairo yekuchengetedza, uye kutora matanho anodiwa epashure-disassembly kuti uve nechokwadi chekuvimbika kwedunhu. Happy coating kubviswa!
Nguva yekutumira: Aug-14-2023