Hauv ntiaj teb kev tsim khoom siv hluav taws xob, tshwj xeeb tshaj yog hauv kev tsim cov ntawv luam tawm Circuit Board (PCBs), kev ruaj ntseg zoo yog qhov tseem ceeb heev. Ib qho ntawm cov cuab yeej zoo tshaj plaws rau kev ua kom raug thiab raug hauv kev tsim PCB yog kev siv cov granite tshuaj xyuas boards. Cov nto muaj zog thiab ruaj khov no muaj ntau yam txiaj ntsig uas txhim kho cov txheej txheem kev ruaj ntseg zoo.
Ua ntej, cov phaj tshuaj xyuas granite muaj qhov tiaj tiaj thiab ruaj khov zoo heev. Cov khoom ntuj ntawm granite ua rau qhov chaw tsis yog tsuas yog tiaj tiaj xwb, tab sis kuj tsis tshua muaj kev hloov pauv thiab deformation dhau sijhawm. Qhov kev ruaj khov no yog qhov tseem ceeb thaum ntsuas PCBs, vim tias txawm tias qhov tsis sib xws me me tuaj yeem ua rau muaj qhov yuam kev loj hauv cov txheej txheem tsim khoom. Los ntawm kev siv cov phaj granite, cov chaw tsim khoom tuaj yeem ua kom ntseeg tau tias lawv qhov kev ntsuas yog qhov tseeb, ua rau cov khoom zoo dua.
Tsis tas li ntawd xwb, cov laug cam granite tseem ruaj khov heev thiab tsis yooj yim puas. Tsis zoo li lwm yam khoom siv uas yuav lwj lossis puas tsuaj raws sijhawm, granite tseem ruaj khov, muab kev daws teeb meem ntev rau kev lees paub zoo. Qhov kev ruaj khov no txhais tau tias tus nqi kho qis dua thiab hloov pauv tsawg dua, ua rau cov laug cam granite yog qhov kev xaiv pheej yig rau cov tuam txhab PCB.
Lwm qhov zoo ntawm cov phaj tshuaj xyuas granite yog lawv qhov sib xws nrog ntau yam cuab yeej ntsuas. Txawm hais tias siv cov calipers, micrometers lossis cov tshuab ntsuas sib koom ua ke (CMMs), cov phaj granite tuaj yeem ua raws li ntau yam cuab yeej, ua rau lawv haum rau ntau yam kev siv pov thawj zoo. Qhov kev hloov pauv no ua rau cov chaw tsim khoom ua kom yooj yim rau lawv cov txheej txheem tshuaj xyuas thiab txhim kho kev ua haujlwm zoo.
Xaus lus, cov txiaj ntsig ntawm cov laug cam tshuaj xyuas granite rau kev lees paub zoo ntawm PCB yog qhov tseeb. Lawv qhov tiaj tiaj zoo heev, ruaj khov, thiab sib xws nrog cov cuab yeej ntsuas ua rau lawv yog cov khoom muaj nqis rau kev lag luam tsim khoom siv hluav taws xob. Los ntawm kev nqis peev rau hauv cov laug cam tshuaj xyuas granite, cov chaw tsim khoom tuaj yeem txhim kho lawv cov txheej txheem kev lees paub zoo, thaum kawg tsim cov khoom PCB zoo thiab txhim kho kev txaus siab ntawm cov neeg siv khoom.
Lub sijhawm tshaj tawm: Lub Ib Hlis-15-2025