Kodi Chidzachitike Chiyani Ngati PCB Zida ndi Kukula Siziyenera?

1. Malinga ndi zomwe GJB3835, pambuyo warping ndi deformation kuwotcherera PCBA mureflow uvunikuwotcherera ndondomeko, warping pazipita ndi kupotoza sadzakhala upambana 0,75%, ndi warping ndi kupotoza PCB ndi zigawo zabwino katayanitsidwe sadzakhala upambana 0,5%.
2. PCBA ndi warping zoonekeratu, ngati Mipikisano wosanjikiza PCBA ali mapindikidwe maganizo, kuphatikizapo kulimbikitsa zitsulo chimango unsembe, galimotoyo nsanja nsanja wononga unsembe, galimotoyo kalozera njanji kalozera poyambira kuyika ndi zina n'zosiyana mapindikidwe unsembe (kulowetsa) ntchito, Zikutheka chifukwa kuwonongeka kapena kuthyoka kwa mabowo azitsulo zazitsulo zosindikizidwa monga IC yochuluka kwambiri ndi zigawo zina, BGA / CCGA zogwirizanitsa zogulitsa ndi mabowo otumizirana ma multilayer PCB.

 

3. PCBA ndi kupotoza kapena kugwada mpaka 0,75% idzaikidwa motsatira ndondomeko zotsatirazi ngati zatsimikiziridwa kuti kupanikizika kwa mapindikidwe sikumayambitsa kuwonongeka kwa chigawo ndi mavuto odalirika ndipo iyenera kupitiriza kugwiritsidwa ntchito.
Kwabasi (ikani) ndi wononga zomangira mwachindunji pa nsanja chassis, kalozera poyambira, kalozera njanji kapena mzati sayenera kuchitidwa kupewa kuwonongeka zina zigawo zikuluzikulu ndi mabowo zitsulo chifukwa n'zosiyana mapindikidwe nkhawa PCB unsembe msonkhano.
Miyezo yakugona kwanuko (zamagetsi kapena zotenthetsera zotenthetsera) ziyenera kutengedwa pamalo pomwe kupotoza ndi kupindika kwapakati kumakhala kwakukulu, osakhudza kudalirika kwa kukhazikitsa ndikuwonetsetsa njira zazikulu zotenthetsera kapena zowongolera.The warping mbali akhoza anaika ndi ananamizira kokha ngati opunduka kusindikizidwa gulu gulu msonkhano sakhala n'zosiyana mapindikidwe nkhawa.

 

4. The rigidity ndi mapindikidwe mphamvu ya zipangizo zosankhidwa kwa PCB unsembe dongosolo ndi kulimbikitsa chimango sizidzachititsa kupotoza kapena uta mapindikidwe kapena n'zosiyana mapindikidwe a PCB.

 

5. Pakuti multilayer PCBA ndi kupotoza zoonekeratu kapena kugwada, kapena kupotoza (kuwerama) zosakwana 0,75%, makamaka PCBA okonzeka ndi mkulu-osalimba IC, BGA/CCGA zigawo zikuluzikulu, kukonza kapena odana mapindikidwe unsembe wa PCB ayenera kupewedwa mosamalitsa. .

 

mzere wathunthu wopanga ma SMT

NeoDen imapereka mayankho athunthu amizere ya SMT, kuphatikiza uvuni wa SMT reflow, makina otenthetsera,makina opangira ndi kukonza, chosindikizira phala solder, PCB loader, PCB unloader, chip mounter, Makina a SMT AOI, makina a SMT SPI, makina a SMT X-Ray, zida zolumikizirana za SMT, Zida zopangira PCB Zida za SMT zosinthira, ndi zina zilizonse makina a SMT omwe mungafune, chonde titumizireni kuti mumve zambiri:

Malingaliro a kampani Zhejiang NeoDen Technology Co., Ltd

Imelo:info@neodentech.com


Nthawi yotumiza: Jun-02-2021

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