Mukafunsidwa kuti gulu loyang'anira dera ndi mtundu wanji, ndikukhulupirira kuti zomwe aliyense amachita ndizobiriwira. Zowona, zinthu zambiri zomalizidwa mumakampani a PCB ndizobiriwira. Koma ndi chitukuko cha teknoloji ndi zosowa za makasitomala, mitundu yosiyanasiyana yatulukira. Kubwerera ku gwero, chifukwa chiyani matabwa nthawi zambiri amakhala obiriwira? Tiye tikambirane lero!
Gawo lobiriwira limatchedwa solder block. Zosakaniza izi ndi resins ndi pigment, gawo lobiriwira ndi mitundu yobiriwira, koma ndi chitukuko cha zamakono zamakono, zawonjezeredwa ku mitundu ina yambiri. Sizosiyana ndi utoto wokongoletsera. Pamaso soldering kusindikizidwa pa bolodi dera, solder kukana ndi phala ndi kutuluka. Pambuyo posindikiza pa bolodi ladera, utomoniwo umauma chifukwa cha kutentha ndipo m’kupita kwa nthaŵi “umachira.” Cholinga cha kuwotcherera kukana ndikuletsa bolodi ladera ku chinyezi, okosijeni ndi fumbi. Malo okhawo omwe sanaphimbidwe ndi chipika cha solder nthawi zambiri amatchedwa pad ndipo amagwiritsidwa ntchito ngati solder phala.
Nthawi zambiri, timasankha zobiriwira chifukwa sizikwiyitsa maso, ndipo sikophweka kwa ogwira ntchito yopanga ndi kukonza kuti ayang'ane PCB kwa nthawi yayitali. Popanga, mitundu yomwe imagwiritsidwa ntchito kwambiri ndi yachikasu, yakuda ndi yofiira. Mitunduyo imapakidwa utoto pamwamba itatha kupangidwa.
Chifukwa china n’chakuti mtundu umene anthu ambiri amagwiritsa ntchito ndi wobiriwira, choncho fakitale imakhala ndi utoto wobiriwira wosiyana kwambiri, choncho mtengo wa mafuta ndi wotsika kwambiri. Izi zili choncho chifukwa potumikira bolodi la PCB, mawaya osiyanasiyana ndi osavuta kusiyanitsa ndi oyera, pomwe zakuda ndi zoyera zimakhala zovuta kuziwona. Pofuna kusiyanitsa magiredi ake opanga, fakitale iliyonse imagwiritsa ntchito mitundu iwiri kuti isiyanitse mndandanda wapamwamba kwambiri kuchokera kumagulu otsika. Mwachitsanzo, Asus, kampani yamakompyuta apakompyuta, board yachikasu ndiyotsika, bolodi ndiyokwera kwambiri. Kubwerera kwa Yingtai ndipamwamba kwambiri, ndipo bolodi lobiriwira ndilotsika kwambiri.
1. Pali zizindikiro pa bolodi la dera: Chiyambi cha R ndi chotsutsa, chiyambi cha L ndi coil inductor (nthawi zambiri koyiloyo imapangidwira kuzungulira mphete yachitsulo, nyumba zina zimatsekedwa), chiyambi cha C ndi capacitor (wamtali cylindrical, wokutidwa pulasitiki, electrolytic capacitors ndi indentation mtanda, flat chip capacitors), miyendo ina iwiri ndi diode, miyendo itatu ndi transistors, ndipo miyendo yambiri ndi madera Integrated.
2, thyristor rectifier UR; Dongosolo lowongolera lili ndi chowongolera magetsi VC; Inverter UF; Converter UC; Inverter UI; Njinga M; Asynchronous motor MA; Synchronous motor MS; DC galimoto MD; Mabala-rotor induction motor MW; Gologolo khola galimoto MC; Vavu yamagetsi YM; Solenoid vavu YV, etc.
3, Kuwerenga kowonjezera komwe kumalumikizidwa ndi gawo lachithunzichi pagulu lalikulu lachidziwitso chazidziwitso.
Nthawi yotumiza: Apr-16-2024
