Nei Uchifanira Kushandisa Conformal Coating Kudzivirira Yemagetsi PCB Circuit Boards

Bhodhi redunhu ndiyo inonyanya kukosha yekugadzirwa kwemagetsi. Iyo ine basa rekutakura masaini emagetsi kuenda nekubva kubhodhi reamai, makadhi ekutenderera, uye magetsi ekupa kuitira kuti vakwanise kuita mabasa avo akatarwa. Pasina bhodhi redunhu, tekinoroji yemazuva ano haingatombovepo. Ndosaka vagadziri vezvigadzirwa zvemagetsi vachifanira kutora chenjedzo yese inobvira kuchengetedza izvi zvinyoro-nyoro kubva pakusangana nezvinhu zvinokuvadza uye tembiricha yakanyanyisa.

Conformal Coating Overview

Kufananidza kupfeka chidimbu chakatetepa chezvinhu chinoiswa pamusoro pebhodhi redunhu remagetsi. Ichi chivharo chinodzivirira bhodhi redunhu kubva kune zvakatipoteredza uye chinodzivirira kukanganisa kune zvikamu. Conformal coating inowanikwa mumhando dzakasiyana siyana, kusanganisira acrylic, polyurethane, silicone, uye epoxy.

Conformal coating inoshandiswa uchishandisa nzira dzakasiyana siyana, kusanganisira kupfapfaidza, dip, uye brashi. Nzira yakajairika ndeye spray inoshandiswa kumapuranga makuru edunhu. Dip uye bhurasho nzira dzinowanzo shandiswa kune madiki mabhodhi kana nzvimbo dzinonetsa kusvika nesprayer.

Conformal coating inogona kuiswa pamberi kana mushure mekunge bhodhi redunhu raunganidzwa. Kana ikashandiswa pamberi pekusangana, zvakakosha kuve nechokwadi kuti iyo layer haina kusangana nechero zvikamu. Izvo zvikamu zvinofanirwa kudzivirirwa kubva pakuputira zvinhu kana zvichishandiswa mushure mekusangana.

Conformal coating inowanzoiswa munzvimbo inodzorwa kuti ive nechokwadi chekuti iyo yekubikira haisangani neguruva kana zvimwe zvinosvibisa. Iyo yakavharwa yedunhu bhodhi inozoiswa muhovhoni inorapika kuti iomese kupfeka.

Conformal coating inopa mabhenefiti akati wandei kumabhodhi edunhu. Inodzivirira zvikamu kubva mukukuvadzwa nekuda kwehunyoro, hunyoro, uye zvimwe zvakatipoteredza. Iyo inodzivirirawo mapfupi maseketi nekuisa insulating nzira dze conductive pabhodhi redunhu.

Conformal coating inogonawo kuvandudza kuvimbika kwemabhodhi edunhu nekudzikisa njodzi yekutadza kwejoint solder. Solder majoini kazhinji inzvimbo isina kusimba pabhodhi redunhu.

Zvakanakira Conformal Coating

Conformal coating inopa akawanda mabhenefiti pane dzimwe nzira dzekudzivirira emagetsi edunhu mabhodhi. Ifirimu rakanyanya kutetepa rinoshandiswa pamusoro pebhodhi, uye rinoenderana nemakona ebhodhi redunhu, richipa yunifomu yekudzivirira. Kufananidza kupfeka zvakare inopokana zvakanyanya nekunyorova uye makemikari, zvichiita kuti ive yakanaka yekudzivirira edunhu mabhodhi akaoneswa kune yakaoma nharaunda.

Zvakaipa zve Conformal Coating

Iyo conformal coating ine zvimwe zvayakaipira. Imwe ndeyokuti inogona kudhura. Chimwe ndechekuti kunyorera kunogona kuve kwakaoma, kunyanya kana iwe uchida midziyo yakakodzera. Pakupedzisira, kana kupfeka kusina kushandiswa zvakanaka, zvinogona kukonzera matambudziko nebhodhi redunhu.

Nzira Yekusarudza Zvinhu Zvakakodzera?

Paunenge uchisarudza iyo yakakodzera zvinhu kune yako conformal coating zvaunoda, pane mashoma akakosha zvinhu iwe aunoda kuchengeta mupfungwa. Yekutanga ndiyo nharaunda iyo yakavharwa PCB ichashandiswa. Kana ikasangana nemakemikari ane hutsinye kana tembiricha yakakwira, iwe unozoda zvinhu zvinokwanisa kumirisana nemamiriro iwayo. Kune akasiyana-siyana e-conformal coating pamusika akagadzirirwa akasiyana maapplication, saka ita shuwa yekusarudza imwe inokodzera zvaunoda.

Chimwe chinhu chakakosha chekufunga nezvacho ndiko ukobvu hwekuputira. Yakanyanya kuonda uye haizopi kuchengetedzwa kwakakwana; yakanyanyisa uye inogona kukanganisa kushanda kwebhodhi redunhu. Ukobvu hunozokanganisawo nguva yekuomesa, saka chinhu icho musarudzo yako.

Chekupedzisira, iwe unozoda kufunga nezve mutengo weiyo conformal coating zvinhu uye woienzanisa nedzimwe sarudzo pamusika. Muzviitiko zvakawanda, mutengo haufanire kunge uri iwo wega wekusarudza, asi chimwe chinhu chauchazofanira kufunga nezvacho.

Nekuchengeta izvi zvinhu mupfungwa, iwe unogona kuve nechokwadi chekusarudza iyo yakakodzera zvinhu kune yako conformal coating zvaunoda.

Yakajairwa Dhizaini Makanganiso uye Maitiro Ekudzivirira Iwo

Nezve dhizaini yemagetsi edunhu mabhodhi, mashoma akajairika kukanganisa anogona kutungamirira kumatambudziko pasi pemutsara. Heano mamwe eanonyanyozivikanwa dhizaini kukanganisa uye kuti ungazvidzivirira sei:

Kubvumidzwa kwakawanda kwakatenderedza zvikamu: Zvikamu pabhodhi redunhu zvinoda rumwe rutsigiro zvakavakomberedza, kuti zvisasangana kana zvimwe zvikamu zvebhodhi. Izvi zvinogona kukonzera zvikabudura kana mamwe matambudziko.

Matare ari padhuze pamwe chete: Mateki pabhodhi redunhu anofanirwa kuparadzaniswa zvakaringana, kuti asapfupike. Izvi zvinonyanya kukosha kune yakakwirira-ikozvino kuteera.

More vias: Vias hukama pakati pezvikamu zvebhodhi redunhu. Izvo zvakakosha pakufambisa masaini uye simba rakatenderedza bhodhi. Kana pasina zvakakwana vias, zviratidzo zvinogona kurasika kana kushatiswa.

Kushandiswa kusina kunaka kwendege dzepasi: Ndege yepasi inzvimbo yakakura yemhangura pabhodhi redunhu rinopa nzira yakaderera-impedance yekudzoka kwezviratidzo uye simba. Kana ikasashandiswa nemazvo, inogona kukonzera matambudziko akawanda.

Aya angori mashoma emagetsi edunhu mabhodhi 'anowanzo dhizaini kukanganisa. Iwe unogona kubatsira kudzivirira kuti zvisaitike mumagadzirirwo ako nekuzviziva.

Ndeipi Nzira Yakakodzera Yekushandisa Conformal Coatings?

Kune akawanda akasiyana marudzi e conformal coatings, imwe neimwe iine chaiyo application maitiro. Zvisinei, matanho ose anofanirwa kuteverwa pakushandisa a conformal coating kubhodhi redunhu remagetsi.

1. Nhanho yekutanga ndeyekuchenesa bhodhi redunhu. Izvi zvinogona kuitwa nenzira dzakasiyana-siyana, asi zvakakosha kubvisa tsvina yese, girisi, uye zvimwe zvinosvibisa kubva pamusoro pebhodhi.

2. Kana bhodhi rave rakachena, chidimbu chakatetepa che conformal coating material chinofanira kushandiswa zvakaenzana pamusoro pepamusoro pese.

3. Bhodhi rakaputirwa rinofanira kurapwa uchishandisa chiedza che ultraviolet kana kupisa.

4. Mushure mekuporesa, bhodhi redunhu richada kuongororwa kuti rive nechokwadi chokuti chifukidzo chinoshandiswa zvakanaka uye kuti hapana zvikanganiso.

mhedziso

Conformal coating yakakosha pakudzivirira emagetsi edunhu mabhodhi kubva munzvimbo dzakaoma. Nekushandisa conformal coating, unogona kuwedzera hupenyu hwemabhodhi ako edunhu uye nekuvandudza mashandiro avo mumashandisirwo akasiyana siyana. Kana iwe uchitsvaga nzira yekuvandudza kuvimbika kwemidziyo yako yemagetsi, funga kushandisa conformal coating kuti uchengetedze edunhu mabhodhi ako.

Kuti uwane zvakawanda nezve nei uchifanira kushandisa conformal unhani kudzivirira zvemagetsi pcb redunhu mapuranga, unogona kushanyira DeepMaterial pa https://www.epoxyadhesiveglue.com/what-is-silicone-conformal-coating-for-electronics-pcb-circuit-board-protection/ nokuti zvimwe info.