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nkhani

N'chifukwa chiyani matabwa ozungulira olondola amagwiritsa ntchito makina osankhidwa?

Zida zina zamagetsi pama board ozungulira olondola sizingavekedwe, kotero makina osankhidwa osankhidwa ayenera kugwiritsidwa ntchito popaka kuti ateteze zida zamagetsi zomwe sizingaphimbidwe ndi zokutira zofananira.

Conformal anti-paint ndi mankhwala amadzimadzi omwe amagwiritsidwa ntchito pamabodi azinthu zosiyanasiyana zamagetsi.Itha kugwiritsidwa ntchito pa bolodi la mama ndi burashi kapena kutsitsi.Pambuyo kuchiritsa, filimu yopyapyala imatha kupangidwa pa boardboard.Ngati malo ogwiritsira ntchito zinthu zamagetsi ndi ovuta, monga chinyezi, kutsitsi mchere, fumbi, ndi zina zotero, filimuyo idzatsekereza zinthu izi kuchokera kunja, ndikulola kuti bolodi la amayi lizigwira ntchito bwino pamalo otetezeka.

Utoto wotsimikizira katatu umatchedwanso utoto woteteza chinyezi ndi utoto wotsekereza.Ili ndi insulating effect.Ngati pa bolodi pali mbali zopatsa mphamvu kapena zolumikizidwa, sizingapentidwe ndi penti yotsutsana ndi dzimbiri.

Zachidziwikire, zinthu zamagetsi zosiyanasiyana zimafunikira zokutira zofananira, kuti zoteteza ziwonekere bwino.Zinthu zamagetsi zamagetsi zimatha kugwiritsa ntchito utoto wa acrylic conformal.Ngati malo ogwiritsira ntchito ndi chinyezi, utoto wa polyurethane conformal ungagwiritsidwe ntchito.Zopangira zamagetsi zapamwamba zimatha kugwiritsa ntchito utoto wa silicone conformal.

Maonekedwe a utoto waumboni zitatu ndi umboni wa chinyezi, anti-corrosion, anti-salt spray, insulation, etc. pogwiritsa ntchito zokutira conformal?

Utoto waumboni utatu umagwiritsidwa ntchito ngati chitetezo chachiwiri pama board ozungulira azinthu zamagetsi.Nthawi zambiri, kunja kwa boardboard kumafunika kukhala ndi chipolopolo chotchinga chinyezi chambiri.Kanema wopangidwa ndi utoto wotsimikizira katatu pa boardboard ndikuteteza chinyezi ndi mchere kuti zisawononge bolodi.za.Inde tiyenera kukumbutsa ogwiritsa ntchito.Utoto wotsimikizira katatu uli ndi ntchito yotsekereza.Pali malo ena pa board board pomwe utoto wotsutsana ndi malaya sungagwiritsidwe ntchito.Zida zomwe sizingapentidwe ndi penti yovomerezeka ya board board:

1. Mphamvu yapamwamba yokhala ndi kutentha kwapamwamba kapena zigawo za radiator, zotsutsa mphamvu, ma diode amphamvu, zotsutsa za simenti.

2. Switch ya DIP, resistor chosinthika, buzzer, chotengera batire, fuse holder (chubu), IC holder, tact switch.

3. Mitundu yonse ya sockets, pin headers, terminal blocks ndi DB headers.

4. Pulagi-in kapena zomata zotulutsa kuwala ndi machubu a digito.

5. Zigawo zina ndi zipangizo zomwe siziloledwa kugwiritsa ntchito utoto wotetezera monga momwe tafotokozera muzojambula.

6. Mabowo opukutira a bolodi la PCB sangathe kupakidwa utoto wotsutsana ndi utoto.


Nthawi yotumiza: Sep-20-2023