Kodi ndingagwiritse ntchito solder wopanda lead pagulu lokhazikika la PCB?

Mawu Oyamba

Mubulogu iyi, tikambirana za mutu wa solder wopanda lead komanso kugwirizana kwake ndi misonkhano ya PCB yokhazikika. Tiwona zotsatira zachitetezo, zopindulitsa, ndikuwona zovuta zilizonse zomwe zingakhudzidwe ndikusintha kukhala wowotchera wopanda lead.

M'zaka zaposachedwa, makampani opanga zamagetsi akuda nkhawa kwambiri ndi kugwiritsa ntchito lead mu solder. Chotsatira chake, opanga ndi mainjiniya akuyang'ana njira zina zogulitsira zotsogola zoyenera kugwiritsa ntchito zosiyanasiyana. M'nkhaniyi, funso lodziwika nthawi zambiri limabuka: Kodi ndingagwiritse ntchito solder wopanda kutsogolera pa msonkhano wa PCB wokhazikika?

1. Kumvetsetsa solder wopanda lead

Solder wopanda lead ndi mtundu wa solder womwe umalowa m'malo mwa lead ndi zitsulo zina monga malata, siliva, ndi mkuwa. Zitsulo izi zimachepetsa kuopsa kwa thanzi ndi chilengedwe komwe kumakhudzana ndi kukhudzidwa ndi mtovu. Ogulitsa opanda lead amapereka njira ina yotheka pamitundu yosiyanasiyana yamagetsi, kuphatikiza kusonkhana kwa PCB kokhazikika.

2. Chitetezo cha solder wopanda lead

Chimodzi mwazinthu zodetsa nkhawa mukamagwiritsa ntchito solder wopanda kutsogolera kwa msonkhano wokhazikika wa PCB ndikuwonetsetsa chitetezo cha ogwiritsa ntchito kumapeto. Mtovu, wokwanira, ukhoza kukhala ndi zotsatirapo zoipa pa thanzi la munthu. Mwa kusintha kwa solder wopanda lead, opanga akuika patsogolo chitetezo cha ogula ndikutsatira malamulo osiyanasiyana amakampani okhudzana ndi zinthu zoopsa.

3. Kugwirizana ndi kudalirika

Ma board olimba-flex nthawi zambiri amapindika ndi kusinthasintha pakagwiritsidwe ntchito, kotero ndikofunikira kuyesa kugwirizana ndi kudalirika kwa solder wopanda lead pamapulogalamu otere. Kafukufuku wambiri ndi kuyesa kwawonetsa kuti solder yopanda kutsogolera imatha kupereka mphamvu zamakina komanso kukhazikika kofunikira pa msonkhano wokhazikika wa PCB, kuwonetsetsa kuti mankhwala ndi odalirika komanso okhalitsa.

4. Kukhudza chilengedwe

Kuphatikiza pa nkhawa za thanzi la anthu, phindu linanso lalikulu la ma solders opanda kutsogolera pa msonkhano wa PCB wosasunthika ndikuchepetsa kuwonongeka kwa chilengedwe. Maboma padziko lonse lapansi akhazikitsa malamulo oti azitsatira mfundo za RoHS (Restriction of Hazardous Substances) pazamagetsi, zoletsa kugwiritsa ntchito mtovu ndi zinthu zina zowopsa. Pogwiritsa ntchito solder wopanda lead, opanga amatha kuthandizira kukhazikika ndikuchepetsa mawonekedwe awo a kaboni.

5. Zovuta ndi kulingalira

Ngakhale solder wopanda lead imapereka zabwino zambiri, imakhalanso ndi zovuta zapadera. Mainjiniya ndi opanga ayenera kuganizira zinthu monga kuchuluka kwa kutentha kosungunuka ndi kuchepetsa kunyowetsa katundu, zomwe zimadzetsa mavuto omwe angakhalepo pakuyenda kwa solder ndi mapangidwe olumikizana. Komabe, kupita patsogolo kwa zopangira zopangira zopangira zopanda kutsogolera komanso njira zophatikizira za PCB zathana ndi zovuta zambiri, zomwe zimawapangitsa kukhala njira yabwino yopangira msonkhano wa PCB wokhazikika.

6. Mapeto

Yankhani funso "Kodi ndingagwiritse ntchito solder wopanda lead pagulu lokhazikika la PCB?" Yankho ndi lakuti inde. Ogulitsa opanda kutsogolera samangopereka njira zopangira zotetezeka, komanso amapereka kudalirika, kugwirizana ndi kukhazikika kwa chilengedwe. Opanga ndi mainjiniya ayenera kudziwa zomwe zapita patsogolo kwambiri pakupanga ma solder opanda lead ndi matekinoloje ophatikiza kuti athe kuthana ndi zovuta zilizonse. Makampani opanga zamagetsi akutenga sitepe ina kupita ku tsogolo lobiriwira, lotetezeka potengera solder wopanda lead.

Mwachidule, kusintha kwa solder-free-free solder for regid-flex PCB assembly kumapereka njira yotetezeka komanso yokhazikika ya solder yochokera kutsogolere. Pamene ukadaulo ndi njira zopangira zikupita patsogolo, ogulitsa opanda lead amapereka mphamvu zamakina zofananira ndi kudalirika. Potengera njira zogulitsira zopanda lead, opanga amatha kukwaniritsa malamulo amakampani, kuyika patsogolo chitetezo cha ogula, ndikuthandizira kuti pakhale malo obiriwira.