Msonkhano kapena kupanga kwa a bolodi losindikizidwa (PCB) imakhudza njira zambiri. Zonsezi ziyenera kupita limodzi kuti zikwaniritse msonkhano wabwino wa PCB (PCBA). Mgwirizano pakati pa sitepe imodzi ndi yomaliza ndikofunikira kwambiri. Kuphatikiza apo, zolembedwazo ziyenera kulandira mayankho kuchokera pazomwe zatulutsidwa, zomwe zimapangitsa kuti zikhale zosavuta kutsatira ndikuthana ndi zolakwika zilizonse koyambirira. Ndi zinthu ziti zomwe zimakhudzidwa ndi msonkhano wa PCB? Pemphani kuti mupeze.

Masitepe nawo ndondomeko PCB msonkhano

PCBA ndi njira yopangira zinthu zimakhudza njira zambiri. Kuti mupeze chinthu chomaliza chomaliza, chitani izi:

Gawo 1: Onjezani phala la solder: Ichi ndiye chiyambi cha msonkhano. Pakadali pano, phala limawonjezeredwa padi paliponse pomwe pamafunika kuwotcherera. Ikani phala pa pedi ndikuliyika pamalo oyenera mothandizidwa ndi pad. Chithunzichi chimapangidwa ndi mafayilo a PCB okhala ndi mabowo.

Khwerero 2: Ikani chigawochi: Pambuyo poti solder yawonjezedwa pa pedi ya chinthucho, ndi nthawi yoyika chigawocho. PCB imadutsa makina omwe amaika zinthuzi ndendende pa pedi. Zovuta zomwe zimaperekedwa ndi phala la solder zimapangitsa msonkhano kukhala m’malo.

Gawo 3: Reflux ng’anjo: Gawo ili limagwiritsidwa ntchito kukonzeratu gululi. Zinthuzo zikaikidwa pa bolodi, PCB imadutsa mu lamba wonyamula zotengera wa Reflux. Kutentha kotentha kwa uvuni kumasungunula solder yowonjezedwa mu gawo loyamba, yolumikiza kosatha msonkhano.

Gawo 4: Wave soldering: Pa gawo ili, PCB imadutsa pamafunde osungunuka. Izi zikhazikitsa kulumikizana kwamagetsi pakati pa solder, PCB pad ndi zotsogola.

Gawo 5: Kukonza: Pakadali pano, njira zonse zowotcherera zatha. Pakati pa kuwotcherera, zotsalira zambiri zimatha kuzungulira cholumikizira cha solder. Monga momwe dzinalo likusonyezera, sitepe iyi imakhudza kutsuka zotsalira za kamwazi. Tsukani zotsalira zamadzi ndi madzi osungunuka ndi zosungunulira. Kudzera sitepe iyi, PCB msonkhano udzatha. Zotsatira zotsatila zidzaonetsetsa kuti msonkhanowu wamalizidwa moyenera.

Gawo 6: Mayeso: Pakadali pano, PCByo yasonkhanitsidwa ndikuwunika kumayamba kuyesa momwe zinthu ziliri. Izi zitha kuchitika m’njira ziwiri:

L Buku: Kuyendera uku kumachitika kawirikawiri pazinthu zing’onozing’ono, kuchuluka kwa zida zake sikuposa zana.

L Makinawa: Chitani cheke ichi kuti muwone kulumikizana koyipa, zinthu zolakwika, zinthu zolakwika, ndi zina zambiri.