Nyob rau hauv lub complex architecture ntawm cov khoom siv hluav taws xob, Circuit Court boards tuaj yeem suav tias yog lub hauv paus tseem ceeb, lub luag haujlwm rau kev sib txuas thiab tsav tsheb ntau yam khoom siv hluav taws xob. Txawm li cas los xij, zoo li ntau cov khoom lag luam, cov rooj sib tham hauv Circuit Court tsis tuaj yeem siv tau tas mus li, thiab lawv lub txee lub neej yog cuam tshuam los ntawm ntau yam uas cuam tshuam rau kev ua haujlwm, kev ntseeg siab, thiab kev pabcuam lub neej ntawm cov khoom siv hluav taws xob. Tshawb nrhiav hauv - qhov kev paub tob txog lub txee lub neej ntawm cov khoom siv hluav taws xob yog qhov tseem ceeb heev rau cov tuam txhab hluav taws xob, cov neeg ua haujlwm tu, thiab cov neeg nyiam siv hluav taws xob.
Kev tshuaj xyuas cov xwm txheej cuam tshuam rau txee lub neej
Cov yam ntxwv ntawm cov khoom thiab kev tsim khoom
Circuit boards feem ntau yog ua los ntawm iav fiber ntau, resin, thiab lwm yam substrates, them nrog cov khoom siv xws li tooj liab ntawv ci. Cov huab cua tsis kam, kub tsis kam, thiab tshuaj lom neeg ruaj khov ntawm cov ntaub ntawv yooj yim no yog lub hauv paus rau lawv lub txee lub neej. Cov ntaub ntawv zoo tuaj yeem ua kom lub cev ruaj khov thiab tshuaj lom neeg zoo dua thaum ntsib kev hloov pauv ib puag ncig xws li kub, av noo, thiab acidity. Piv txwv li, siv high -purity tooj liab ntawv ci thiab ruaj khov resin tuaj yeem txo qhov oxidation ntawm cov ntawv ci tooj liab, txo qhov nthuav dav thiab deformation ntawm cov substrate nyob rau hauv qhov chaw ntub thiab kub, thiab yog li txuas ntxiv lub neej ntawm lub rooj tsav xwm Circuit Court. Cov txheej txheem tsim khoom kuj tseem ceeb heev, los ntawm lamination, etching rau saum npoo ntawm lub rooj tsavxwm, qhov kev txiav txim siab thiab kev tswj xyuas zoo ntawm txhua kauj ruam ntawm cov txheej txheem yuav cuam tshuam rau nws qhov kev ua haujlwm pib thiab kev laus tom qab. Kev tswj tsis zoo ntawm lub siab thiab kub thaum lub sij hawm lamination txheej txheem ntawm ntau- txheej boards tuaj yeem ua rau tsis txaus interlayer bonding, ua rau delamination dhau sijhawm thiab ua rau lub neej luv luv.
Qhov sib txawv ntawm cov txheej txheem kho saum npoo
Cov txheej txheem kho saum npoo ntawm Circuit Boards muaj qhov cuam tshuam loj rau lawv lub neej txee. Cov kev kho deg sib txawv muaj qhov sib txawv ntawm kev ua haujlwm ntawm oxidation tsis kam, corrosion kuj, thiab weldability. Cov txheej txheem immersion kub, vim nws cov tshuaj zoo heev ruaj khov thiab muaj zog oxidation tsis kam ntawm cov txheej kub, tuaj yeem tiv thaiv pad oxidation zoo, ua rau lub neej ntev rau cov laug cam, feem ntau mus txog 12 lub hlis lossis ntev dua. Nyob rau hauv sib piv, cov organic weldable preservative txheej txheem, txawm hais tias tus nqi qis, muaj ib tug kuj nyias zaj duab xis txheej uas yog yooj yim oxidized nyob rau hauv huab cua, thiab nws lub neej txee feem ntau tsuas yog 3-6 lub hlis. Lub rooj tsav xwm Circuit Court nrog cov txheej txheem nyiaj plating yog qhov ua rau cov tshuaj tiv thaiv sulfurization ntawm cov nyiaj txheej hauv ib puag ncig tshwj xeeb, ua rau cov nyiaj dub sulfide, uas cuam tshuam rau kev ua haujlwm thiab kev ua haujlwm hluav taws xob. Nws lub neej txee yuav tsum tau ua tib zoo tswj, feem ntau nyob ib ncig ntawm 6-9 lub hlis.
Cia ib puag ncig yam tseem ceeb
Qhov chaw khaws cia tuaj yeem hu ua "invisible killer" lossis "protector" ntawm lub txee lub neej ntawm cov rooj sib tham. Nyob rau hauv cov nqe lus ntawm qhov kub thiab txias, qhov zoo tshaj plaws cia kub yog nyob nruab nrab ntawm 15-30 ° C. Qhov kub thiab txias yuav ua rau kom cov ntaub ntawv aging, ua rau tooj liab foil expansion thiab substrate softening, ua rau muaj kev pheej hmoo ntawm luv luv circuits ntawm circuits; Thaum qhov kub thiab txias tsis dhau, lub rooj tsavxwm ua nkig thiab cov kab nrib pleb tuaj yeem tshwm sim thaum lub sijhawm thauj mus los thiab teeb tsa. Cov av noo kuj yog qhov tseem ceeb, thiab cov av noo txheeb ze yuav tsum tau tswj ntawm 30% thiab 70%. Nyob rau hauv high humidity ib puag ncig, Circuit Court boards yog nquag nqus dej noo, ua rau tooj liab foil corrosion, solder sib txuas xeb, thiab kev puas tsuaj rau cov hluav taws xob sib txuas; Cov av noo tsawg tuaj yeem tsim hluav taws xob zoo li qub thiab ua rau cov khoom siv hluav taws xob puas tsuaj rau ntawm lub rooj tsav xwm Circuit Court uas muaj kev cuam tshuam rau hluav taws xob zoo li qub. Tsis tas li ntawd, yog tias muaj corrosive gases xws li sulfur dioxide, hydrogen sulfide, thiab lwm yam nyob rau hauv qhov chaw cia, lawv yuav hnov mob chemically nrog cov hlau nyob rau saum npoo ntawm Circuit Court board, tsub kom lub oxidation thiab corrosion txheej txheem thiab shortening lub txee lub neej.
Qhov sib txawv hauv txee lub neej ntawm ntau hom Circuit Court boards
Qhov sib txawv ntawm lub rooj tsavxwm liab qab thiab lub rooj sib txoos ua ke
Lub txee lub neej ntawm cov laug cam (tsis muaj cov khoom siv hluav taws xob tau teeb tsa) feem ntau yog nyob ntawm lawv tus kheej cov ntaub ntawv, kev tsim khoom, thiab kev cia khoom. Nyob rau hauv cov xwm txheej zoo cia, cov laug cam uas tau txais cov txheej txheem kev kho saum npoo av xws li tin spraying thiab kub plating feem ntau muaj lub neej txee ntawm 6-12 lub hlis. Tab sis yog tias cov laug cam liab qab tau kho nrog cov chaw oxidizable yooj yim xws li OSP, lub txee lub neej tsuas yog 3-6 lub hlis. Lub rooj sib tham sib dhos, nrog rau ntau yam khoom siv hluav taws xob tau muab tso rau hauv nws, nthuav tawm qhov teeb meem nyuaj dua. Cov khoom siv hluav taws xob kuj muaj lawv tus kheej lub neej kev txwv, xws li electrolytic capacitors. Tom qab lub sijhawm ntev cia lossis siv, cov electrolyte tuaj yeem qhuav thiab tus nqi capacitance yuav ntws, cuam tshuam rau tag nrho cov kev ua haujlwm ntawm lub rooj tsavxwm. Feem ntau, lub txee lub neej ntawm cov rooj sib txoos yog li ntawm 2 mus rau 10 xyoo, nyob ntawm qhov zoo thiab cov khoom siv hluav taws xob xaiv, nrog rau qhov zaus thiab kev ua haujlwm ntawm lub rooj tsavxwm Circuit Court.
Cov yam ntxwv ntawm Circuit Boards nyob rau hauv txawv daim ntawv thov teb
Hauv kev lag luam ntawm cov neeg siv khoom siv hluav taws xob, cov khoom siv hluav taws xob feem ntau yog ua los ntawm cov ntaub ntawv zoo tib yam thiab cov txheej txheem kho saum npoo vim lawv nrhiav kev sib tw thiab tus nqi qis. Ntxiv mus, cov khoom tau hloov kho sai sai, thiab lawv cov txee lub neej feem ntau yog teem rau ntawm 2-5 xyoo kom tau raws li qhov yuav tsum tau muaj kev ntseeg siab ntawm cov khoom thaum lub sij hawm siv ib txwm siv. Circuit boards hauv kev tswj hwm kev lag luam yuav tsum muaj kev ntseeg siab vim lawv lub sijhawm ntev - lub sijhawm ua haujlwm ruaj khov hauv qhov chaw nyuaj thiab hnyav. Lawv feem ntau yog ua los ntawm cov khoom zoo -cov ntaub ntawv zoo thiab raug nruj peb cov pov thawj kev kho mob (waterproof, dustproof, thiab anti-corrosion), nrog lub txee lub neej txog li 5-10 xyoo los yog ntev dua. Nyob rau hauv lub tshav pob ntawm automotive electronics, Circuit Court boards yog tsim thiab tsim raws li nruj qauv rau kev nyab xeeb thiab durability, coj mus rau hauv tus account lub cim xwm ntawm lub tsheb ib puag ncig (kev co, siab thiab tsis kub, electromagnetic cuam tshuam, thiab lwm yam). Lawv lub neej txee feem ntau yog 5-8 xyoo, thiab thoob plaws tag nrho lub neej ntawm lub tsheb, kev ua haujlwm ntawm lub rooj tsavxwm yuav tsum muaj kev ruaj ntseg kom muaj kev nyab xeeb ntawm kev tsav tsheb thiab kev ua haujlwm ntawm lub tsheb.