Izembozo ze-PCB (Printed Circuit Board) zidlala indima ebalulekile ekuvikeleni amasekhethi ezindaweni zangaphandle ezinokhahlo. Nokho, kwezinye izimo, kungase kudingeke ukususa i-PCB enamathelayo ukuze ilungiswe noma ilungiswe. Kulo mhlahlandlela obanzi, sizokuhambisa ezinyathelweni zokususa ngokuphepha nangempumelelo okunamathelayo kwe-PCB. Ngesu elifanele namathuluzi, ungakwazi ukususa ngempumelelo i-coating ngaphandle kokubangela noma yimuphi umonakalo kumjikelezo obucayi.
1. Qonda i-PCB enamathelayo
Ngaphambi kokungena enqubweni yokususa, kufanelekile ukuqonda izinhlobo zezingubo ze-PCB okungenzeka uhlangane nazo. Izembatho ezivamile zihlanganisa i-acrylic, i-epoxy, i-polyurethane, i-silicone, ne-parylene. Uhlobo ngalunye lunezici zalo futhi ludinga amasu athile okususa. Ngaphambi kokuqala inqubo yokususa, kubalulekile ukukhomba ukunamathela okusetshenziswe ku-PCB ukuqinisekisa ukuthi kusetshenziswa indlela efanele.
2. Izinyathelo Zokuphepha
Ukuphepha kufanele kube yinto eza kuqala kuwe uma usebenza ngezingubo ze-PCB. Qiniseka ukuthi ugqoka izibuko, amagilavu, kanye nemaski yokuphefumula ukuze uzivikele kuntuthu wamakhemikhali. Futhi, sebenza endaweni enomoya omuhle ukuze unciphise ukuchayeka ezintweni eziyingozi. Gcina isicishamlilo siseduze futhi ulandele yonke imihlahlandlela yokuphepha nemiyalelo enikezwe umenzi kapende.
3. Khetha ithuluzi elifanele
Ukuze ususe ngempumelelo ukunamathela kwe-PCB, udinga isethi ekhethekile yamathuluzi. Lokhu kungase kuhlanganise iziteshi zokuvuselela umoya oshisayo, izibhamu zokushisa, ama-ayina ahlanganisiwe, imimese enembile, nezixazululo zokuhlanza ze-PCB. Ukukhethwa kwethuluzi kuncike kuhlobo lokumboza kanye nobukhulu bendawo ofuna ukuyisusa.
4. Isinyathelo ngesinyathelo sokususa inqubo
- Isinyathelo 1: Lungiselela i-PCB ngokukhipha noma yiziphi izakhi, izixhumi noma izintambo ezingase zithiye inqubo yokususa ukunamathela.
- Isinyathelo sesi-2: Thola uhlobo lwe-coating. Izingubo ze-Acrylic ne-epoxy ngokuvamile zingathanjiswa futhi zisuswe kusetshenziswa isibhamu sokushisa noma isiteshi sokuvuselela umoya oshisayo. I-silicone noma i-parylene coatings, ngakolunye uhlangothi, ingadinga ama-stripper amakhemikhali noma ama-solvents akhethekile.
- Isinyathelo sesi-3: Shisisa kancane i-coat usebenzisa indlela efanelekile, uqiniseke ukuthi awushisi kakhulu noma ungalimazi i-PCB.
- Isinyathelo sesi-4: Usebenzisa ummese onembayo noma elinye ithuluzi elifanele, khumula ngokucophelela okunamathelayo okuthambile. Qaphela ukuthi ungalimazi ukujikeleza okungaphansi.
- Isinyathelo sesi-5: Ngemva kokukhipha okuningi kokunamathela, sebenzisa isisombululo sokuhlanza se-PCB ukuze ususe noma iyiphi insalela noma izinsalela zezinsalela.
- Isinyathelo sesi-6: Hlanza i-PCB kahle nge-isopropanol noma amanzi ase-deionized ukuze ususe noma yiziphi izinsalela zesisombululo sokuhlanza.
- ISINYATHELO 7: Vumela i-PCB ukuthi yome ngokuphelele ngaphambi kokuhlanganisa kabusha noma ukwenza noma yimuphi omunye umsebenzi.
5. Izinyathelo zokuqapha ngemva kokususwa
Ngemva kokususwa ngempumelelo kwe-PCB enamathelayo, kubalulekile ukuhlola ibhodi ukuze kubonakale umonakalo ongaba khona. Hlola noma yiziphi izinsalela eziphakanyisiwe noma ezilimele, i-vias ephukile, noma izingxenye ezilimele. Uma kukhona izinkinga ezitholakele, kufanele zilungiswe ngaphambi kokuqhubeka nomsebenzi owengeziwe.
Ukukhipha i-PCB enamathelayo kudinga isineke, ukunemba kanye namathuluzi alungile. Ngokulandela inqubo yesinyathelo nesinyathelo evezwe kulo mhlahlandlela, ungasusa ngokuphepha nangempumelelo ama-coatings kuma-PCB. Khumbula ukusebenzisa ukuqapha, ukulandela imihlahlandlela yokuphepha, futhi uthathe izinyathelo ezidingekayo zokuqapha ngemuva kokuhlakazwa ukuze uqinisekise ubuqotho besifunda. Ukususwa kwe-coating ejabulisayo!
Isikhathi sokuthumela: Aug-14-2023