PCB potting makomboni sarudzo dzemagetsi zvikamu kubva kune vanogadzira zvinhu zvehari

Muzvikamu zvakawanda zvemagetsi, zvakakosha kuwana kuvimbika uye kuchengetedzwa kwenguva refu. Ndiyo imwe yenzira idzo kukundikana kusati kwasvika kunogona kudzivirirwa. Kuwedzera kwedunhu density uye madiki masisitimu akatungamira kune yakanyanya kupisa tembiricha. Izvi zvaita kuti zvidikanwe kutsvaga mhinduro dzakanakisa dzekupisa kupisa.

Nzira dzakashandiswa

Tekinoroji dzakasiyana dzinogona kushandiswa kuchengetedza zvikamu zvemagetsi, kunyanya zvine hunyoro. Izvi zvinosanganisira:

• Kukanda: muchiitiko ichi, mvura yakaoma kana yakasvibiswa inodururwa muforoma. Ichi chikamu chakaumbwa chichaumbwa sechiumbwa, chinogona kushandiswazve.
• Potting: apa ndipo panodirwa mvura yakaomeswa kana yakanyungudutswa mudzimba kana mugoko, rinosara riri chikamu chechikamu chose.
• Encapsulation: Izvi zvinosanganisira goko rakatetepa kana rekudzivirira rinoradzikwa rakatenderedza gungano kana chikamu. Panzvimbo pechigadziko chechigarire, mold inoshandiswa. Paunobvisa mold, resin yakarapwa inoramba iri kunze.
• Kuisa chisimbiso: apa ndipo panowanikwa chipingamupinyi pamusoro pemudziyo wemidziyo yedzimba
• Impregnation: mune iyi kesi, chikamu chinonyudzwa zvachose mumvura kuti ive nechokwadi chekuti interstices yakanyorova kana kunyorova.

Potting zvinhu

Hardeners uye resin zvinodiwa mukati encapsulation uye potting. Resins anoshandiswa mumaindasitiri emagetsi nemagetsi. Iwo makuru mapoka mapolyester, anopisa anonyungudika, silicone, urethane, uye epoxy. Izvi zvinoenderana nemhando dzemakemikari.

Epoxy: epoxy ine yakanaka thermal properties inobvumira kuti ishande uko kune kupisa kwakanyanya. Dzimwe nguva, epoxy inogona kugadzirwa kuitira kuti ionekwe kune yakanyanya kupisa tembiricha. Mishonga iyi yakagadzikana uye inofanotaurwa mukuita kwese. Vanopa kupikisa kwakanaka kumakemikari kunze kweasidhi. Vanopa yakanakisa adhesion uye simba pane porous uye kwete-porous nzvimbo.

Urethanes: urethanes ane huwandu hwakawanda hwehunhu hunoenderana nekuoma. Iwo anoshandiswa pamabhodhi edunhu akadhindwa uye anogona kugadzirwa kuti akurumidze kuita. Inogona kushandiswa mumashandisirwo anoda kupisa kupisa. Izvo zvinodzivirira makemikari zvakare. Kana iwe uchida chisungo chinochinjika, urethane ndiyo yakanakira sarudzo iwe.

silicone: Uyu musanganiswa unogona kuchinjika kune yakaderera uye yakakwirira tembiricha zvakare. Zvishandiso zvakawanda zvinoenderana nekomboni iyi. Ivo vanopa inochinjika uye yakapfava chisungo chinogona kurapwa neUV. Silicone ine good solvent resistance. Imwe yenyaya huru nesilicone mutengo wakakwira uye chokwadi chekuti inoshanda nemapurasitiki nemamwe mapurasitiki.

Hot inonyungudika: izvi zviri nyore kushandisa, uye zvinogara nekukurumidza. Ivo isarudzo yakanaka yekuzadza gap. Vanogona kubviswa nekuda kwekugadzirisa uye kugadzirisa. Ivo vane kushomeka kwekushomeka kwekupisa asi kwakanyanya kunyungudika. Izvi zvinogona kuva polyolefin, polyurethane, kana polyamide-based.

Polyester resins: unsaturated polyester resins inowanzoshandiswa mumagetsi ekugadzira potting application. Iwo ma mechanical maitiro akaomarara kuchinjika. Kupisa uye kupikisa kwemakemikari kwezvinhu zvakanaka. Vane kunamatira kwakanaka kune simbi zvakare.

Kutenga zvakanakisa

Kuti uwane iwo emhando yepamusoro mapotting makomisheni, shanda neDeepMaterial. Tine huwandu hwakasiyana hwemakomisheni uye zvimwe zvigadzirwa zvinogona kushandiswa mumaindasitiri uye DIY mapurojekiti. Isu tinokwanisa nyore kugadzirisa-kugadzirisa mhinduro kusangana nezvako zvakatemwa.

Kuti uwane zvakawanda nezvePCB potting kommoni sarudzo dzemagetsi zvikamu kubva vagadziri vemidziyo yehari, unogona kushanyira DeepMaterial pa https://www.epoxyadhesiveglue.com/category/pcb-potting-material/ nokuti zvimwe info.