Indlela ndawonye PCB?

Inkqubo yokuhlanganisa okanye yokuvelisa ye ibhodi yesekethe eprintiweyo (I-PCB) ibandakanya amanyathelo amaninzi. Onke la manyathelo kufuneka ahambe ngesandla ekuphumezeni indibano ye-PCB elungileyo (PCBA). Ukudibana phakathi kwenyathelo elinye kunye nelokugqibela kubaluleke kakhulu. Ukongeza, igalelo kufuneka lifumane ingxelo evela kwimveliso, eyenza kube lula ukulandela umkhondo nokusombulula naziphi na iimpazamo kwinqanaba lokuqala. Ngawaphi amanyathelo abandakanyekayo kwindibano ye-PCB? Funda ukuze ufumane.

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Amanyathelo abandakanyekayo kwinkqubo yendibano ye-PCB

I-PCBA kunye nenkqubo yokuvelisa kubandakanya amanyathelo amaninzi. Ukufumana eyona mveliso ikumgangatho ophezulu, yenza la manyathelo alandelayo:

Inyathelo 1: Yongeza i-solder paste: Esi sisiqalo senkqubo yendibano. Kule nqanaba, uncamathisele longeziwe kwipali yecandelo naphina apho kufuneka khona ukuwelda. Beka uncamathiselo kwiphedi uze uyincamathisele kwindawo echanekileyo ngoncedo lwephedi. Esi sikrini senziwe ngeefayile zePCB ezinemingxunya.

Inyathelo 2: Beka icandelo: Emva kokuba i-solder paste yongezwa kwiphedi yecandelo, lixesha lokuba ubeke icandelo. I-PCB idlula kumatshini obeka la macandelo ngokuchanekileyo kwiphedi. Uxinzelelo olunikezwe sisincamathelisi sokugcina lubambe indibano endaweni yayo.

Inyathelo 3: Isithando somlilo esili-Reflux: Eli nyathelo lisetyenziselwa ukulungisa isigxina ebhodini. Emva kokuba izinto zibekwe ebhodini, i-PCB igqitha kwibhanti yokuhambisa umlilo yomlilo. Ukushisa okulawulwayo kwe-oven kuyanyibilika i-solder eyongezwe kwinqanaba lokuqala, ngokudibanisa ngokusisigxina ibandla.

Inyathelo 4: I-soldering ye-Wave: Kweli nyathelo, i-PCB idlula kumaza e-solder anyibilikileyo. Oku kuya kuseka unxibelelwano lombane phakathi kwe-solder, i-PCB pad kunye nezikhokelo zecandelo.

Inyathelo 5: Ukucoca: Kule ndawo, zonke iinkqubo zokuwelda zigqityiwe. Ngexesha le-welding, isixa esikhulu sentsalela yokubhobhoza singenza ukujikeleza ilunga le-solder. Njengoko igama lisitsho, eli nyathelo libandakanya ukucoca intsalela yeflux. Coca intsalela yeflux ngamanzi acocekileyo kunye nesinyibilikisi. Ngeli nyathelo, indibano ye-PCB igqityiwe. Amanyathelo alandelayo aya kuqinisekisa ukuba indibano igqitywe ngokuchanekileyo.

Inyathelo 6: Uvavanyo: Kweli nqanaba, i-PCB ihlanganisiwe kwaye uhlolo luqala ukuvavanya indawo yamacandelo. Oku kunokwenziwa ngeendlela ezimbini:

L Incwadi: Olu hlolo luhlala lwenziwa kumacandelo amancinci, inani lezinto ezingekho ngaphezulu kwekhulu.

L Ngokuzenzekelayo: Yenza olu tshekisho ukukhangela unxibelelwano olubi, izinto ezingalunganga, izinto ezibekwe endaweni engeyiyo, njl.