Kwa mainjiniya ambiri amagetsi, mwina, ali akatswiri kwambiri pakupanga matabwa awo a PCB, komanso amadziwa bwino mtundu wa malo ogwirira ntchito omwe PCB yawo idzagwiritsidwe, koma sadziwa momwe angatetezere matabwa awo ndi zigawo zake ndikukulitsa moyo wautumiki.Ndiko kuyanika kovomerezeka.
Kodi conformal coating ndi chiyani?
Chophimba chovomerezeka ndi filimu yopyapyala ya polymeric yomwe imagwiritsidwa ntchito pa bolodi losindikizidwa (PCB) pofuna kuteteza bolodi ndi zigawo zake ku chilengedwe ndi dzimbiri.Kanemayo nthawi zambiri amagwiritsidwa ntchito pa 25- 250µm ndipo 'amagwirizana' ndi mawonekedwe a bolodi ndi zigawo zake, kuphimba ndi kuteteza zolumikizira zogulitsira, zotsogola za zida zamagetsi, mawonekedwe owonekera, ndi madera ena opangidwa ndi zitsulo ku dzimbiri, pamapeto pake kukulitsa moyo wogwira ntchito. pa PCB.
N'chifukwa chiyani mukufunika zokutira conformal?
Bolodi yosindikizidwa yomwe yangopangidwa kumene nthawi zambiri imachita bwino, koma magwiridwe antchito amatha kuwonongeka mwachangu chifukwa cha zinthu zakunja zomwe zimagwirira ntchito.Zovala zofananira zingagwiritsidwe ntchito m'malo osiyanasiyana kuti ziteteze matabwa osindikizira ku chinyezi, kutsitsi mchere, mankhwala ndi kutentha kwambiri pofuna kupewa zinthu monga dzimbiri, nkhungu kukula ndi kulephera kwa magetsi.Chitetezo choperekedwa ndi zokutira zofananira chimalola ma volteji okwera kwambiri komanso masitayilo oyandikira ma track, zomwe zimathandiza opanga kuti akwaniritse zofuna za miniaturization ndi kudalirika.
1. Malo otchingira amalola kuchepeka kwakutali kwa kondakitala wa PCB kupitilira 80%
2. Zingathandize kuthetsa kufunikira kwa mipanda yovuta, yovuta.
3. Kulemera kopepuka.
4. Kuteteza kotheratu msonkhanowo kuti usawonongedwe ndi mankhwala komanso zowononga.
5. Kuthetsa kuwonongeka kwa magwiridwe antchito chifukwa cha kuopsa kwa chilengedwe.
6. Chepetsani kupsinjika kwa chilengedwe pa msonkhano wa PCB.
Moyenera, zokutira zofananira ziyenera kuwonetsa izi:
1. Kugwiritsa ntchito kosavuta.
2. Kuchotsa kosavuta, kukonza ndi kusintha.
3. Kusinthasintha kwakukulu.
4. Chitetezo ku kutentha kwa kutentha ndi makina.
5.Kutetezedwa ku zoopsa zachilengedwe kuphatikizapo: chinyezi, mankhwala ndi zinthu zina zowonongeka.
Kodi mumayika bwanji Conformal Coating?
Njira zinayi zazikulu zopangira zokutira zofananira:
1. Kuviika - kumangokhala kuzinthu zomwe sizichiritsa msanga ndi chinyezi, okosijeni kapena kuwala.
2. Chovala chosankha cha robotic -monga Asymtek, PVA kapena DIMA.Mitundu yonse yokutira ingagwiritsidwe ntchito ngati mutu wolondola wogawira wasankhidwa.
3. Kupopera -kupopera pamanja pogwiritsa ntchito kanyumba kopopera kapena chitini cha aerosol.Zopaka zonse zitha kugwiritsidwa ntchito motere.
4. Kutsuka -kumafuna anthu odziwa bwino ntchito komanso aluso kwambiri kuti akhale oyenera kupanga.
Pomaliza muyenera kuganizira njira yochiritsira yomwe imatsimikiziridwa ndi zokutira zosankhidwa, zowuma mpweya, zowuma mu uvuni kapena machiritso a UV.Chophimba chamadzimadzi chikuyenera kunyowetsa malo onse ndikuchiza popanda kusiya zolakwika.Ma epoxies amakhudzidwa kwambiri ndi zolakwika zapamtunda.Ma epoxies amathanso kuchepa pamene akukonzekera ndipo akhoza kutaya kumamatira chifukwa Kuonjezera apo;kuchepa kwambiri panthawi ya chithandizo kungayambitse kupsinjika kwamakina pazigawo zozungulira.
Ngati mukufuna kudziwa zambiri za zokutira conformal, PHILIFAST ikupatsani chiwongolero cha izi.PHILIFAST tcherani khutu ku tsatanetsatane aliyense kuti akupatseni matabwa a PCB okhala ndi moyo wautali wautumiki poteteza gawo lililonse lofunikira chilichonse ndi dera.
Nthawi yotumiza: Jun-22-2021