Kuwongolera Moyenera Kutentha kwa Uvuni wa SMT Reflow Kuti Muwongolere Ubwino wa Kuwotcherera

Kodi Mukuvutika Kulamulira Kutentha kwa Uvuni Popanga? Muyezo Wokhazikitsa Uwu Uthandiza

Mu njira yopangira SMT (Surface Mount Technology), kulondola kwa kuwongolera kutentha kwa uvuni wobwezeretsanso kumatsimikizira mwachindunji mtundu wa kuwotcherera ndi magwiridwe antchito azinthu zamagetsi. Ngakhale kusintha pang'ono kungayambitse zolakwika monga malo olumikizirana ozizira, mabowo, kapena kuwonongeka kwa zigawo.

RICH FULL JOY Electronics, kutengera luso lapamwamba pakupanga PCBA komanso ukatswiri waukadaulo, yapanga "Reflow Oven Temperature Profile Setting Standard," yomwe imapereka malangizo asayansi, adongosolo, komanso othandiza pakuwongolera kutentha kwa uvuni wa SMT.

Chidule Chachikulu

Muyezo uwu umagwira ntchito pa ma uvuni onse obwezeretsanso madzi mu malo athu ochitira masewera a SMT, ndipo mainjiniya aluso a SMT ali ndi udindo wokhazikitsa ndi kuyang'anira ma profiles a kutentha kuti atsimikizire kuti kutentha kumawongolera bwino panthawi yowotcherera.

Kukonzekera Zida

Kuti muyeze ndikukhazikitsa ma profiles a kutentha molondola, zida zotsatirazi ndizofunikira: choyesera cha PROFILE, mawaya a thermocouple, ma PCB board enieni oyezera, magolovesi oteteza, ndi ma specifications a solder paste.

Kukhazikitsa Miyezo

1. Maziko Othandizira
Ikani magawo monga kuchuluka kwa ramp-up, kutentha kotenthetsera, ndi kutentha kobwerera kutengera mawonekedwe a ma solder phala osiyanasiyana (monga, ma solder phala opanda lead, lead solder phala).

2. Maziko Oyezera
Ma profiles a kutentha ayenera kuyezedwa pa ma PCB board enieni kuti awonetse molondola zotsatira za malo enieni opangira zinthu pa kusamutsa kutentha.

3. Miyezo Yaikulu

·Kukwera kwa liwiro: 1–4℃/s

·Malo Otenthetsera: 150–200℃, 60–120s

·Malo Osinthira Kuyenda: ≥220℃ kwa masekondi 30–60

·Kutentha Kwambiri: 235–250℃

·Kuzizira:

4. Zofunikira Zapadera
Sinthani mbiri yanu motsatira malingaliro anu pa khalidwe la malonda kapena tsatirani mosamala zofunikira za makasitomala anu.

5.I-Glue Kuchiritsa Magawo
Kutentha kwa I-glue yophikira ndi 120℃, ndipo nthawi yophikira ndi pakati pa masekondi 90-150, ndipo malire ake ndi 170℃.

Kusamalitsa

1. Kuyesa Tsiku ndi Tsiku
Kuyesa kwathunthu kwa kutentha kuyenera kuchitidwa ndikulembedwa pambuyo poyatsa kapena kusintha kwa mzere wopangira tsiku lililonse.

2. Bungwe Loyang'anira Ntchito
Mainjiniya a SMT okha ndi omwe ali ndi chilolezo chosintha makonda a mbiri ya kutentha.

3. Kutsatira Malamulo a Makasitomala
Konzani mosamala magawo a ndondomeko malinga ndi zofunikira za kasitomala zokonzanso.

4. Kukonza Zida
Chitani mayeso a mpweya wotuluka mu uvuni wobwezeretsanso mpweya miyezi isanu ndi umodzi iliyonse, kuonetsetsa kuti ntchito ikuyenda bwino. Kusiyana kwa kutentha pakati pa madera sikuyenera kupitirira 70℃.

Mapeto

Mwa kukhazikitsa "Reflow Oven Temperature Profile Setting Standard," RICH FULL JOY Electronics imatsimikizira kuti SMT imagwira ntchito bwino kwambiri, imawonjezera kudalirika kwa kupanga ndi magwiridwe antchito azinthu, komanso imathandiza makasitomala kufulumizitsa nthawi yogulitsira ndikupeza zabwino zopikisana.