Uma ubuzwa ukuthi ibhodi lesifunda linemibala enjani, ngikholwa ukuthi ukusabela kokuqala kwawo wonke umuntu kuluhlaza. Kuyavunywa, iningi lemikhiqizo eqediwe embonini ye-PCB iluhlaza. Kodwa ngokuthuthukiswa kobuchwepheshe kanye nezidingo zamakhasimende, imibala ehlukahlukene iye yavela. Emuva emthonjeni, kungani amabhodi ngokuvamile eluhlaza? Ake sikhulume ngakho namuhla!
Ingxenye eluhlaza ibizwa ngokuthi i-solder block. Lezi zithako ziyizinhlayiya nama-pigments, ingxenye eluhlaza yimibala eluhlaza, kodwa ngokuthuthukiswa kobuchwepheshe besimanje, iye yanwetshwa kweminye imibala eminingi. Akuhlukile kupende wokuhlobisa. Ngaphambi kokuthi i-soldering iphrintwe ebhodini lesifunda, ukumelana ne-solder kunamathiselwe nokugeleza. Ngemva kokunyathelisa ebhodini lesifunda, inhlaka iyaqina ngenxa yokushisa futhi ekugcineni “ilulaphe.” Inhloso ye-resistance welding ukuvimbela ibhodi lesifunda kusuka kumswakama, i-oxidation nothuli. Indawo kuphela engamboziwe i-solder block ngokuvamile ibizwa ngokuthi i-pad futhi isetshenziselwa unamathisele we-solder.
Ngokuvamile, sikhetha okuluhlaza ngoba akucasuli amehlo, futhi akulula ukuthi izisebenzi zokukhiqiza nezokulungisa zigqolozele i-PCB isikhathi eside. Ekwakhiweni, imibala evame ukusetshenziswa iphuzi, emnyama futhi ebomvu. Imibala ipendwe phezulu ngemva kokwakhiwa.
Esinye isizathu siwukuthi umbala ovame ukusetshenziswa uluhlaza, ngakho ifektri inopende oluhlaza kakhulu, ngakho izindleko zikawoyela ziphansi. Lokhu kungenxa yokuthi lapho kuseviswa ibhodi le-PCB, izintambo ezihlukene kulula ukuzihlukanisa nezimhlophe, kuyilapho okumnyama nokumhlophe kunzima ukukubona. Ukuze uhlukanise amabanga omkhiqizo wayo, imboni ngayinye isebenzisa imibala emibili ukuze ihlukanise uchungechunge olusezingeni eliphezulu kuchungechunge olusezingeni eliphansi. Isibonelo, i-Asus, inkampani ye-motherboard yekhompyutha, ibhodi eliphuzi linomkhawulo ophansi, ibhodi lokubhalela lisezingeni eliphezulu. I-rebound ye-Yingtai iphezulu, futhi ibhodi eliluhlaza liphansi.
1. Kunezimpawu ebhodini lesekethe: Ukuqala kuka-R yi-resistor, ukuqala kuka-L yikhoyili ye-inductor (imvamisa ikhoyili iboshwe eringini yensimbi, enye indlu ivaliwe), ukuqala kuka-C i-capacitor (i-cylindrical ende, esongwe ngepulasitiki, ama-electrolytic capacitors ane-cross indentation, ama-flat chip capacitors), eminye imilenze emibili i-diode, imilenze emithathu i-transistors, futhi imilenze eminingi iyisekhethi ehlanganisiwe.
2, thyristor rectifier UR; Isifunda sokulawula sine-VC yokulungisa ugesi; Inverter UF; UC Converter; I-Inverter UI; Motor M; Asynchronous motor MA; I-synchronous motor MS; I-DC motor MD; I-Wund-rotor induction motor MW; I-squirrel cage motor MC; I-valve kagesi YM; I-valve ye-Solenoid YV, njll.
3, ukufunda okunwetshiwe okunamathiselwe ingxenye yomdwebo ebhodini elikhulu lesifunda lengxenye yegama lesichasiselo segama lolwazi.
Isikhathi sokuthumela: Apr-16-2024
