I-PCB ehlanzekile ibalulekile ukuze ithembeke. Ephrintiwe wesifunda ibhodi ngezinye izikhathi kungase kuqongelele uthuli noma okunye ukungcola futhi kudinga ukuhlanzwa. I-PCB engcolile ingase ithinte umsebenzi ofanele wedizayini yayo ehlosiwe. Kungakhathaliseki ukuthi ibhodi lakho lingcolile ngenxa yokuchayeka endaweni yalo yokusebenza, noma ngenxa yokuthi ukupakishwa kwalo noma ukuvikelwa akuvikelwe kahle, kubalulekile ukwenza izindlela zokuhlanza ezifanele ukuze kuthuthukiswe ukwethembeka.

Ngabe i-PCB engcolile iwuthinta kanjani umsebenzi

Uthuli luqukethe izinto ezilenga emoyeni. Iyinkimbinkimbi ngokwemvelo futhi ngokuvamile iqukethe ingxube yezinto zamaminerali ezingaphili, usawoti oncibilikayo emanzini, izinto eziphilayo kanye nenani elincane lamanzi.

Njengoba izingxenye ze-SMT ziba zincane futhi zenziwa miniaturized, ingozi yokwehluleka ngenxa yokungcola iyanda. Ucwaningo luye lwabonisa ngokusobala ukuthi uthuli lwenza amabhodi esekethe atholakale kalula ekuhlulekeni okuhlobene nomswakama, njengokulahlekelwa ukumelana nokufakwa kwendawo, ukufuduka kwe-electrochemical, kanye nokugqwala.

Indlela yokuhlanza i-PCB

Ukunakekelwa okwengeziwe kufanele kuthathwe lapho uhlanza i-PCB. Izinyathelo zokuphepha ze-ESD kufanele zicatshangelwe futhi kufanele zinqanyulwe futhi zenziwe endaweni eyomile. Uma usebenzisa izindlela zokuhlanza ezingalungile noma izinqubo, ibhodi lingase lingasebenzi nhlobo.

Hlanza uthuli

Ukuze uthole uthuli, indlela engcono kakhulu yokususa uthuli ukushaya ibhodi lesifunda lihlanzekile ngomoya ocindezelweyo. Qaphela izindawo ezibucayi ezingadala umonakalo. Isixubho singelinye ithuluzi ongalisebenzisa ukususa uthuli.

I-flux ehlanzekile

Amabhodi esifunda ane-Residual flux AIDS kufanele ahlanzwe nge-saponifying agent. Kwabangafundile nonjiniyela, kuvame kakhulu ukusula iwayini. Isixubho singamanziswa ngotshwala futhi singasetshenziswa ukukhuhla noma yikuphi ukugeleza. Sicela uqaphele ukuthi uma amashisela akho ebhodi engenawo-wash flux, kuyoba nzima ukuwakhipha futhi kungase kudingeke isihlanzi esinamandla.

Hlanza ukugqwala

Sebenzisa i-baking soda ukuhlanza ukugqwala okuncane okubangelwa amabhethri nezinye izinto. Ingasetshenziselwa ukususa ukungcola ngaphandle kokulimaza ibhodi. Isoda yokubhaka i-abrasive kancane futhi isiza ukususa ukugqwala noma izinsalela obekungeke kwenzeke ngamathuluzi alula njengebhulashi elinamanzi acwecwe. Iphinde inciphise i-acidity yensalela.