Ua ntej ua cov txheej txheem PCB, nws yog ib qho tsim nyog yuav tau ci lub rooj tsav xwm PCB, uas feem ntau hu ua PCB ci. Lub hom phiaj ntawm ci lub rooj tsavxwm PCB yog tsuas yog tshem tawm cov dej noo ntau dhau los ntawm lub rooj tsavxwm Circuit Court los ntawm ib puag ncig sab nraud. Tau kawg, tsis tas li ntawd, ci lub rooj tsavxwm kuj tuaj yeem ua rau cov nyhuv vuam ntawm PCB tom qab cov sijhawm ua haujlwm; Tom ntej no, cia Uniwell Circuits Editor kawm paub ntau ntxiv txog cov ncauj lus kom ntxaws ntawm PCB ci boards nrog txhua tus ~
PCB ci yog hais txog cov cua kub thiab ci ntawm PCB Circuit Board, feem ntau ua ntej PCB ua. Cov txheej txheem ci yog muab tso rau hauv PCB pawg thawj coj saib uas yuav tsum tau muab ci rau hauv PCB qhov cub thiab teeb lub sijhawm ci thiab kub. Feem ntau, qhov ci kub yuav tsum tsis txhob siab tshaj qhov TG point ntawm PCB lub rooj tsavxwm, feem ntau nyob rau hauv 100 degree ~ 125 degree, vim hais tias dej yuav tig mus rau hauv chav thaum nws tshaj 100 degree. Yog li ntawd, qhov kub siab tshaj 100 degree yog txaus kom qhuav cov dej noo hauv PCB board. Lub sijhawm ci ntawm lub rooj tsavxwm PCB feem ntau yog 1-2 teev, thiab lub sijhawm ci tshwj xeeb yog nyob ntawm lub sijhawm cia thiab ib puag ncig ntawm PCB pawg thawj coj saib;
Raws li cov qauv kev lag luam rau PCB ci, yog tias PCB hnub tsim khoom yog nyob rau hauv ob lub hlis, nws yuav tsum tau ci ntawm qhov kub ntawm 120 ± 5 degree rau ib teev ua ntej ua. Yog tias PCB hnub tsim khoom nyob rau hauv 2-6 lub hlis, nws yuav tsum tau muab ci rau ob teev ntawm qhov kub ntawm 120 ± 5 degree. Yog tias PCB hnub tsim khoom ntau tshaj 6 lub hlis dhau los ntawm hnub tsim khoom, nws yuav tsum tau ci ntawm qhov kub ntawm 120 ± 5 degree rau plaub teev ua ntej ua. Yog tias PCB tshaj lub txee lub neej, tsis tas yuav ci nws, thiab nws yuav tsum tau txiav ncaj qha;
PCB boards uas tau khaws cia rau lub sijhawm ntev yuav tsum tau ci thaum lub sijhawm ua haujlwm PCBA. Qhov kom zoo dua ntawm ci yog tias nws tuaj yeem qhuav cov dej noo hauv PCB pawg thawj coj saib, tsis txhob muaj qhov tsis xws luag xws li PCB tawg thaum lub sijhawm ua haujlwm, txo tus nqi kho ntawm lub rooj tsavxwm, thiab tseem tshem tawm cov kev ntxhov siab hauv PCB tom qab ci, txo qhov kev pheej hmoo. deformation ntawm PCB; Kuj tseem muaj qhov tsis zoo me ntsis tom qab ci lub rooj tsav xwm PCB, uas tuaj yeem ua rau tsis muaj xim thiab cuam tshuam rau nws cov tsos, tab sis nws tsis cuam tshuam rau nws txoj kev siv.