Inhlangano noma inqubo yokukhiqiza ye- ibhodi yesifunda ephrintiwe (I-PCB) ifaka izinyathelo eziningi. Zonke lezi zinyathelo kufanele zihambisane ukufeza umhlangano omuhle we-PCB (PCBA). Ukusebenzisana phakathi kwesinyathelo esisodwa nesokugcina kubaluleke kakhulu. Ngaphezu kwalokho, okokufaka kufanele kutholakale impendulo kusuka kokukhiphayo, okwenza kube lula ukulandelela nokuxazulula noma yimaphi amaphutha kusenesikhathi. Yiziphi izinyathelo ezihilelekile PCB inhlangano? Funda ukuze uthole.

Izinyathelo ezihilelekile kwinqubo yenhlangano ye-PCB

I-PCBA kanye nenqubo yokukhiqiza ibandakanya izinyathelo eziningi. Ukuthola ikhwalithi ephezulu yomkhiqizo wokugcina, yenza lezi zinyathelo ezilandelayo:

Isinyathelo 1: Faka ukunamathisela kwe-solder: Lesi yisiqalo senqubo yomhlangano. Kulesi sigaba, unamathisela uyanezelwa kuphedi lezinto nomaphi lapho kudingeka khona ukushisela. Beka unamathisele kuphedi bese ulinamathisela endaweni efanele ngosizo lwephedi. Lesi sikrini senziwe ngamafayela e-PCB anezimbobo.

Isinyathelo 2: Beka ingxenye: Ngemuva kokuthi unamathisela i-solder ingezwe kuphedi yento, sekuyisikhathi sokubeka leyo nto. I-PCB idlula emshinini obeka lezi zingxenye ngqo kuphedi. Ukungezwani okuhlinzekwa yi-solder paste kugcina umhlangano endaweni.

Isinyathelo 3: Isithando somlilo se-Reflux: Lesi sinyathelo sisetshenziselwa ukulungisa unomphela ebhodini. Ngemuva kokuthi izingxenye zibekwe ebhodini, i-PCB idlula ngebhande elihambayo le-Reflux esithandweni. Ukushisa okulawulwayo kuhhavini kuncibilikisa i-solder engezwe esinyathelweni sokuqala, ixhuma unomphela umhlangano.

Isinyathelo 4: I-Wave soldering: Kulesi sinyathelo, i-PCB idluliswa ngegagasi le-solder elicibilikile. Lokhu kuzosungula ukuxhumana kagesi phakathi kwe-solder, i-PCB pad nemikhombandlela yento.

Isinyathelo 5: Ukuhlanza: Okwamanje, zonke izinqubo zokushisela seziqediwe. Ngesikhathi sokushisela, inani elikhulu lezinsalela ze-flux zingakha ezungeze ukujoyina kwe-solder. Njengoba igama lisho, lesi sinyathelo sihilela ukuhlanza izinsalela ze-flux. Hlanza izinsalela ze-flux ngamanzi akhethiwe ne-solvent. Ngalesi sinyathelo, inhlangano ye-PCB isiqediwe. Izinyathelo ezilandelayo zizoqinisekisa ukuthi umhlangano uqedwa kahle.

Isinyathelo 6: Ukuhlolwa: Kulesi sigaba, i-PCB ihlanganisiwe futhi ukuhlolwa kuqala ukuhlola isikhundla sezingxenye. Lokhu kungenziwa ngezindlela ezimbili:

L Incwadi: Lokhu kuhlolwa kuvame ukwenziwa ezingxenyeni ezincane, inani lezinto alikho ngaphezu kwekhulu.

L Okuzenzakalelayo: Yenza lokhu kuhlola ukuze ubheke ukuxhumeka okungalungile, izinto ezinamaphutha, izinto ezingekho kahle, njll.