Umhlangano – Izinsimbi zokushisela amapuleti zingashiya ukungcola; Njengezinsalela ze-flux, ngakho-ke, umkhondo wethusi ubhekene nokwelashwa komhlaba ngesikhathi senqubo yokukhiqiza, bese iyahlanzwa.

Ezokuthutha – noma ngabe zivela kumkhiqizi wenkontileka (i-CM) kuwe, noma zivela kukhasimende noma kumakhasimende, yakho PCB kungathinteka emazingeni aphezulu okushisa angazinzile – angadala umswakama noma amazinga okushisa aphansi – angadala ukuqhekeka futhi aholele ekwehleni. Enye indlela yokuzivikela kulezi zingcuphe ukuvikela ibhodi lesifunda ngezingubo ezifanayo noma ezinye izinhlobo zokupakisha.

Isitoreji – Ngemuva kokusebenza, ibhodi lakho cishe lizochitha isikhathi esiningi kwisitoreji. Uma i-CM yakho ingekho, izingxenye zingaba abahlinzeki benkonzo yokukhiqiza i-turnkey phakathi kokuqamba nokuhlangana, kepha iningi lizokwenziwa ngemuva komhlangano. Ngakho-ke, kuyadingeka ukulandela imihlahlandlela emihle yesitoreji se-PCB ukuqinisekisa ukuthi amabhodi akho akulungele ukusetshenziswa uma esekulungele.

Kufanele wazi ngolwazi lwesitoreji se-PCB

Ukugcinwa okungavikelekile kwe-bare (PCB) noma okuhlanganisiwe (i-PCBA) kungasho inhlekelele. Futhi, uma izindleko zokuphinda zenziwe kabusha, ukulethwa okungadalulwanga nokungahle kukhanselwe kuqala ukudla ezilinganisweni zakho zembuyiselo, kuyisifundo esibalulekile ukufunda ukungaboni ukuthi uma kushiywe kungavikelekile, amabhodi wakho wesekethe azokwehla ngokushesha futhi ngokushesha ngokuhamba kwesikhathi. Ngenhlanhla, kukhona amakhambi okuthi, uma efakwa, anganciphisa kakhulu amathuba okulahlekelwa noma yimaphi amabhodi ngenxa yokuphathwa ngendlela engafanele noma imikhuba emibi yokugcina.

Isinyathelo sokuqala ukuqinisekisa ukuthi i-CM yakho ilandela izincomo zokuphatha amabhodi nokugcina kahle; Isibonelo ku-IPC-1601 yokuphathwa kwebhodi ephrintiwe kanye nemihlahlandlela yesitoreji. Le mihlahlandlela inikeza abakhiqizi nabahlanganisi izindlela nolwazi ukuze bavikele i-PCBS ku:

ukungcoliswa

Ukuncipha kokuncipha

Ukulimala ngokomzimba

Munca umswakama

Ukukhishwa kwe-Electrostatic (ESD)

Ihlanganiswe ne-IPC / JEDEC J-STD-033D IPC-1601 ukuphatha, ukupakisha, ukuthutha nokusetshenziswa komswakama, ukufaka kabusha okokufaka izinsimbi kanye nemishini ezwela inqubo, i-IPC inikela ngamazinga okupakisha nokugcina ukunciphisa amathuba okungcola kwebhodi lesifunda ngesikhathi yokukhiqiza. Ngaphezu kwalokho, imihlahlandlela yokuhambisa nokugcina ehambisana nayo ingasetshenziswa. Impilo eshalofini ye-PCB ehlanganisiwe ihlanganisa iqoqo lezindlela ezibalulekile zokugcina i-PCB, njengoba kukhonjisiwe ngezansi.

Imihlahlandlela ebalulekile yesitoreji se-PCB

Faka indawo efanelekile lapho wenza

Amabhodi amaningi angadinga ukugcinwa okwesikhashana ngemuva kokwenziwa kodwa ngaphambi kokuhlangana. Ukuvimbela uketshezi kanye nokungcola ngalesi sikhathi, kufanele kusetshenziswe izindlela zokwelapha ezifanelekile.

Uma kungenzeka, sebenzisa izinto ezingemanzi

Izingxenye ze-SMD ezingenamanzi zinempilo yokugcina engenamkhawulo emazingeni okushisa ≤30 ° C (86 ° F) kanye nomswakama ohlobene (RH) ≤ 85% ngaphambi komhlangano. Uma zihlanganiswe kahle, lezi zingxenye kufanele zeqe kalula impilo eshalofini yokuzibiza yeminyaka engu-2-10 ngemuva komhlangano. Izingxenye ezizwelayo zomswakama, ngakolunye uhlangothi, zinempilo eshalofini enconywayo yosuku olulodwa kuya onyakeni owodwa ngaphambi komhlangano. Kwibhodi lesifunda elinalezi zingxenye, iziqukathi zokulawulwa kwemvelo nezokugcina zizonquma ukusebenza kwazo kahle.

Gcina ibhodi esikhwameni sokuqinisekisa umswakama (MBB) nge-desiccant

Wonke amabhodi kufanele agcinwe ezikhwameni zokuqinisekisa umswakama ukuvimbela umswakama ukuthi ungangeni ezikhwameni nokuvikela i-desiccant ekungeneni umswakama ngaphakathi. Kodwa-ke, ungasebenzisi izikhwama ezigcinwe isikhathi esingaphezu konyaka.

Umshini uphawu MBB

I-MBB izomiswa futhi ivalwe nge-vacuum. Lokhu kuzohlinzeka ngokuvikelwa kwe-anti-static.

Indawo yokulawula

Ukunakekelwa kufanele kuthathwe ukuze kuqinisekiswe ukuthi akukho ukushintshashintsha okukhulu kwezinga lokushisa ngesikhathi sokugcina noma sokuhambisa, njengoba umehluko wezinga lokushisa ungadala ukudluliswa kwamanzi noma ukufingqa. Okukhethwa kukho okuhle kungukushisa okulawulwayo okungu -30 ° C (86 ° F) no-85% RH.

Thumela noma usebenzise amabhodi amadala kuqala

Kungumqondo omuhle futhi ukuthumela njalo kuqala noma ukusebenzisa amabhodi amadala ukukhulisa ukugwema amabhodi wokukhohlwa nokudlula impilo yeshalofu enconyiwe.