Ua ntej tshaj plaws, preheating tuaj yeem tiv thaiv cov distortion thiab deformation ntawm PCBA Board. Thaum lub sijhawm tag nrho PCB Board cov txheej txheem ntau lawm, yog vim li cas thiaj muaj kev ntxhov siab rau cov neeg PCBA kom raug lwm yam kev ntxhov siab, thiab cov teeb meem no yuav muaj kev thab plaub ntxiv thaum lub sijhawm vuam. Tom qab qhia cov kauj ruam preheating, qhov kev ntxhov siab hauv PCBA Board tuaj yeem tso tawm ua ntej, yog li kom ntseeg tau tias distortion thiab deformation yuav tsis tshwm sim dua thaum vuam.
Qhov thib ob, preheating tuaj yeem txhim kho cov wettability thiab fluabity ntawm PCBA Board qhov chaw. Tsuas yog thaum tus PCB pawg thawj coj yog zoo wetted thiab nthuav tawm pins ntawm IC tau sib raug zoo ntawm Pcb Board, tuaj yeem ua kom tau txais kev ua tiav zoo. Los ntawm preheating, qhov kub ntawm PCB pawg thawj coj tau muaj txiaj ntsig zoo, yog li txhim kho lub wettability thiab flucharity ntawm PCB pawg thawj coj mus.
Thib peb, preheating tuaj yeem txhim kho lub zog thiab corrosion tsis kam ntawm PCBA Board qhov chaw. Thaum lub sij hawm vuam txuas, yog tias kev txuas preheating yog tsis muaj, nws yuav ua rau cov kev nplua nuj thiab oxidation corrosion ntawm lub vuam taw tes. Cov teeb meem no yuav ua rau cov khoom puas tsuaj thiab ua tau zoo kev ua haujlwm tom qab siv ntev. Los ntawm kev ua kom zoo, lub zog thiab corrosion tsis kam ntawm cov vuam taw tes tuaj yeem hloov kho tau zoo, thiab qhov zoo ntawm cov khoom lag luam tuaj yeem tau lees tias.
Hauv PCBA ntau lawm thiab tsim qauv, cov kauj ruam preheating tsis tuaj yeem tsis quav ntsej. Nws tsis yog lees paub qhov zoo ntawm cov khoom, tab sis kuj ua lub luag haujlwm tseem ceeb heev hauv kev txhim kho PCBA ntau lawm thiab txo cov nqi. Yog tias koj xav txhim kho cov nyhuv vuam thiab txo cov khoom lag luam tsis zoo, koj yuav tsum them sai sai rau kev ua haujlwm preheating ua ntej pulba vuam.
