Dab tsi ua rau Circuit Board hlawv tawm?

Thaum lub sij hawm PCB board tsim thiab board ntau lawm txheej txheem, engineers tsis tau tsuas yog yuav tsum tau los tiv thaiv PCB boards los ntawm raug yuam kev thaum lub sij hawm tsim khoom, tab sis kuj yuav tsum tau kom tsis txhob tsim yuam kev. Ua ntej peb nkag mus rau hauv PCBA tsis ua hauj lwm tsom xam cov tswv yim, cia peb saib qee qhov laj thawj vim li cas lub rooj tsav xwm hluav taws xob tuaj yeem hlawv. Burnt circuit boards tsis tas yuav muaj teeb meem rau lawv tus kheej, lawv feem ntau tshwm sim los ntawm lwm cov khoom tsis sib xws lossis cov teeb meem ntawm PCB. Cia peb kawm seb dab tsi ua rau lub rooj tsavxwm kub hnyiab.

1. Cov huab cua kub heev lossis noo noo nyob hauv huab cua

Vim yog cov qauv ntawm PCBA nws tus kheej, thaum nws nyob hauv ib qho chaw tsis zoo, nws yooj yim ua rau kev puas tsuaj rau lub rooj tsav xwm Circuit Court. Kev kub ntxhov lossis kub hloov pauv, lwm yam kev mob xws li cov av noo ntau dhau thiab kev vibration siab yog yam uas tuaj yeem ua rau txo qis kev ua haujlwm lossis txawm tias cov khoom siv hluav taws xob.

Piv txwv li, kev hloov pauv ntawm qhov kub thiab txias tuaj yeem ua rau lub rooj tsav xwm Circuit Court deformation. Qhov no tuaj yeem tawg cov pob qij txha, khoov cov duab ntawm lub rooj tsavxwm, lossis nws tuaj yeem ua rau cov xov tooj ntawm lub rooj tsavxwm tawg. Feem ntau cov khoom siv hluav taws xob tsis ua haujlwm zoo tshaj 70 degree, yog li tsim rau cov ntawv thov kub yog qhov nyuaj tab sis tsim nyog. Txwv tsis pub, cov khoom yuav raug hlawv, thiab thaum mob hnyav, tag nrho lub tshuab yuav raug hlawv.

Ntawm qhov tod tes, noo noo nyob rau hauv cov huab cua tuaj yeem ua rau oxidation, corrosion thiab xeb ntawm cov hlau nto xws li cov khoom siv tooj liab, cov pob qij txha, cov ntaub qhwv thiab cov khoom siv uas ua rau tuaj yeem ua rau hnav ntawm cov hlau los yog hlau, ua rau cov khoom tawg, ua rau Short circuit lossis burnt circuit board.

2. Qhov sib txawv ntawm cov khoom tsis raug

Cov khoom ntim tau nruj heev ua ke rau ntawm lub rooj tsav xwm luam tawm, vim tias tsis muaj qhov chaw ntau dhau ntawm ob lub rooj sib txuas sib txuas, uas zoo li ua kom sov cov khoom, uas yuav ua rau muaj kev sib txhuam thaum caij tsheb thauj mus los, co, lossis kub siab. Muaj feem xyuam rau cov khoom nyob ib sab. Yog li ntawd, koj yuav tsum qhwv lub rooj tsav xwm hauv Circuit Court nrog cov ntim khoom tiv thaiv zoo li qub thiab cais cov khoom siv.

Yog tias cov khoom nyob ze rau ib leeg, cov khoom tsis muaj qhov tsim nyog yuav cuam tshuam rau cov khoom nyob ib sab vim qhov kub thiab txias, uas yuav tsum tsis txhob overfilling lub rooj tsavxwm. Tsis tsuas yog qhov no yuav txo cov nqi thiab ua kom cov khoom lag luam sai, tab sis nws tseem yuav pab koj kom tsis txhob muaj qhov yuam kev kim uas tuaj yeem haunt koj tom qab.

3. Cov khoom tsis ua haujlwm thiab cov neeg ua haujlwm tsis raug

Qhov tseem ceeb tshaj plaws ntawm kev sib dhos PCB yog qhov tsim qauv, yog li yog tias muaj qee yam tsis zoo hauv cov qauv tsim, nws yuav ua rau lub rooj tsavxwm tsis ua haujlwm lossis hlawv tom qab. Yog li kev kuaj xyuas thaum lub sij hawm sib dhos kom paub tseeb tias qhov tseeb diodes thiab capacitors tau teev tseg rau lub rooj tsavxwm yuav txo tau qhov tshwm sim ntawm burnout cuam tshuam nrog cov khoom tsis ua haujlwm.

Lub rooj tsav xwm hluav taws xob tuaj yeem hlawv tawm vim kev tiv thaiv tsis zoo. Tsis muaj qhov loj me me tiv thaiv fuse. High voltage tiv thaiv diodes tiv thaiv lub rooj tsavxwm los ntawm burnout nyob rau hauv cov kev tshwm sim ntawm xob laim ntaus los yog lwm yam voltage surges.

Lwm qhov ua rau ntawm lub rooj tsavxwm hlawv yog cuam tshuam nrog kev ua haujlwm tsis raug. Yog hais tias lub rooj tsavxwm raug xaim tsis raug lossis txuas nrog cov khoom siv hluav taws xob tsis raug, nws yuav hlawv tawm. Tsis tas li, yog tias cov ntaub ntawv teeb tsa tsis zoo lossis tsis muaj nyob, tus kws tshaj lij hauv thaj chaw tuaj yeem txuas cov boards tsis raug.

Yog li ntawd, tseem muaj ntau qhov laj thawj rau lub rooj tsav xwm hluav taws xob hluav taws xob, thiab cov neeg ua haujlwm tshaj lij yuav tsum tau ua kom tsis txhob muaj cov xwm txheej no. Raws li tus kws tshaj lijkev tsim khoom siv hluav taws xobmuab kev pabcuam, Tecoo muaj ntau tshaj 20 xyoo ntawm kev tsim khoom hauv kev lag luam no. Peb yuav siv peb cov kev paub dhau los los pab cov neeg siv khoom zam cov teeb meem no, txuag cov neeg siv khoom lub sijhawm thiab cov nqi peev, thiab txo lawv lub sijhawm rau kev lag luam.