Raws li cov ntsiab lus tseem ceeb, lub rooj tsav xwm hauv Circuit Court, ib zaug corroded, yuav ua rau cov teeb liab kis tsis zoo, luv Circuit Court, thiab lwm yam txhaum, ua rau lub neej luv luv ntawm cov khoom siv. Corrosion ntawm Circuit Court boards yog tshwm sim los ntawm ntau yam ua hauj lwm ua ke. Kev nkag siab txog kev txhim kho corrosion thiab ua raws li kev tiv thaiv kev tiv thaiv yog qhov tseem ceeb rau kev ua kom ntseeg tau thiab ruaj khov ntawm Circuit Court boards.
1, Txheeb xyuas qhov ua rau Corrosion hauv Circuit Boards
Qhov corrosion ntawm Circuit Court boards feem ntau yog tshwm sim los ntawm ib puag ncig yam thiab lawv cov khoom siv. Ib puag ncig ntub yog ib qho ntawm "culprits" uas ua rau corrosion. Dej nyob rau hauv cov huab cua yuav condense mus rau hauv ib tug dej zaj duab xis nyob rau saum npoo ntawm lub Circuit Court board. Thaum muaj cov hlau conductors ntawm lub rooj tsavxwm Circuit Court, cov yeeb yaj kiab dej tsim ib puag ncig electrochemical corrosion nrog cov hlau. Yog hais tias huab cua muaj corrosive gases xws li sulfides thiab chlorides, cov gases yaj nyob rau hauv cov dej zaj duab xis thiab ceev cov txheej txheem corrosion ntawm hlau. Tsis tas li ntawd, cov ntaub ntawv siv nyob rau hauv cov txheej txheem ntawm kev tsim hluav taws xob Circuit Court boards, xws li tooj liab ntawv ci, solder, thiab lwm yam, yog hais tias lawv purity tsis siab los yog lawv cov nto kho tsis zoo, yuav txo tau lawv corrosion kuj. Piv txwv li, cov kab tooj liab uas tsis muaj kev tiv thaiv zoo yog feem ntau ua rau sulfide corrosion nyob rau hauv cov av noo thiab sulfur-ib puag ncig, ua rau muaj zog tiv thaiv thiab txawm tawg ntawm cov kab.
2, Kev siv cov khoom siv tiv thaiv
(1) Peb pov thawj xim txheej
Peb cov ntaub ntawv pov thawj (nqus dej- pov thawj, tiv thaiv pwm, tshuaj tiv thaiv ntsev) yog cov khoom siv feem ntau los tiv thaiv corrosion ntawm Circuit Court boards. Los ntawm kev txau, dipping, los yog txhuam, ib zaj duab xis tiv thaiv ntom ntom yog tsim rau ntawm qhov chaw ntawm lub rooj tsav xwm Circuit Court kom cais cov dej noo, cov roj corrosive, thiab kev sib cuag nrog lub rooj tsav xwm hauv Circuit Court. Polyurethane peb cov ntaub ntawv pov thawj xim muaj qhov hnav tsis kam thiab yoog raws, haum rau cov khoom siv hluav taws xob hauv Circuit Court boards uas yuav tsum tau muaj kev co nquag, xws li tsheb hluav taws xob tswj hluav taws xob Circuit Court boards; Acrylic peb cov ntaub ntawv pov thawj xim muaj qhov ceev kom qhuav sai thiab tus nqi qis, thiab feem ntau yog siv los tiv thaiv cov neeg siv khoom siv hluav taws xob zoo tib yam Circuit Court boards. Tom qab siv peb cov pov thawj xim, qhov corrosion kuj ntawm lub rooj tsav xwm Circuit Court tuaj yeem txhim kho tau zoo, thiab kev pabcuam lub neej nyob rau hauv ib puag ncig hnyav tuaj yeem txuas ntxiv 2-3 zaug.
(2) Nano txheej
Nrog rau kev tsim cov khoom siv thev naus laus zis, nano coatings maj mam siv rau kev tiv thaiv Circuit Court board. Lub molecular particle loj ntawm nano txheej yog qhov me me, uas tuaj yeem nkag mus rau hauv cov pores me me ntawm qhov chaw ntawm cov laug cam, ua kom zoo dua qub, thinner, thiab muaj zog tiv thaiv zaj duab xis. Graphene nanocoating muaj tshuaj zoo heev stability thiab conductivity, uas tsis tsuas yog zoo tiv thaiv corrosion, tab sis kuj txhim kho lub tshav kub dissipation kev ua tau zoo thiab electromagnetic shielding peev xwm ntawm Circuit Court boards rau ib tug tej yam. Nws yog qhov tsim nyog rau cov khoom siv hluav taws xob siab - kawg cov khoom siv hluav taws xob uas xav tau kev ua haujlwm siab heev, xws li aerospace circuit boards thiab siab -kev ua tau zoo server circuit boards.
3, Kev tsim cov txheej txheem optimization
(1) Txhim kho cov txheej txheem kho saum npoo
Cov txheej txheem kho saum npoo ntawm cov laug cam muaj qhov cuam tshuam loj rau lawv cov kev ua haujlwm corrosion. Siv cov txheej txheem electroless npib tsib xee kub plating, ib txheej ntawm npib tsib xee yog thawj zaug tso rau ntawm qhov chaw ntawm lub rooj tsav xwm Circuit Court, ua raws li txheej kub, uas tuaj yeem cais cov huab cua thiab noo noo thiab tiv thaiv oxidation ntawm cov hlau hauv qab. Cov txheej npib tsib xee muaj qhov hnav tsis zoo thiab tiv thaiv corrosion, thaum cov txheej kub muaj cov tshuaj lom neeg ruaj khov thiab tuaj yeem tiv taus corrosion los ntawm ntau yam tshuaj lom neeg. Piv nrog rau cov txheej txheem cua kub txheej txheem, qhov saum npoo ntawm lub rooj tsavxwm tau kho nrog electroless npib tsib xee plating txheej txheem yog smoother, nrog zoo solderability thiab ho txhim kho corrosion kuj.
(2) Sealing thiab ntim txheej txheem
Rau cov khoom siv hluav taws xob siv nyob rau hauv ib puag ncig huab cua, xws li sib sib zog nqus- cov cuab yeej tshawb nrhiav dej hiav txwv thiab cov khoom siv tshuaj lom neeg, siv cov tshuab ntim ntim kaw yog ib qho kev tiv thaiv zoo. Muab lub rooj tsav xwm hauv Circuit Court kaw rau hauv cov hlau los yog yas ntim thiab ntim nrog cov thermal conductive sealant tuaj yeem tsis tsuas yog tiv thaiv kev cuam tshuam ntawm cov khoom corrosive los ntawm sab nraud, tab sis kuj muaj lub luag haujlwm ntawm kev poob siab thiab kev kub ntxhov. Epoxy resin sealant feem ntau yog siv rau kev sib khi, uas muaj cov rwb thaiv tsev zoo, tshuaj tiv thaiv corrosion, thiab txhua yam muaj zog, thiab tuaj yeem muab kev tiv thaiv zoo rau cov laug cam.
4, Siv ib puag ncig tswj
(1) Kev tswj kub thiab av noo
Kev tswj xyuas qhov kub thiab av noo ib puag ncig rau kev siv cov khoom siv hluav taws xob tuaj yeem txo qhov kev pheej hmoo ntawm corrosion. Nruab cov khoom siv ntsuas kub thiab av noo hauv cov khoom siv hluav taws xob, cov chaw khaws ntaub ntawv, thiab lwm qhov chaw los tswj qhov kub thiab txias ntawm 20-25℃thiab txheeb ze av noo ntawm 40% -60%. Qhov kub thiab av noo ib puag ncig tuaj yeem txo qhov condensation ntawm dej vapor ntawm qhov chaw ntawm lub rooj tsav xwm Circuit Court thiab inhibit qhov tshwm sim ntawm electrochemical corrosion.
(2) Cua purification
Nws yog ib qho tseem ceeb los ntxuav cov huab cua nyob rau hauv ib puag ncig nrog siab concentrations ntawm corrosive gases, xws li nyob ze ntawm cov tshuaj factories thiab cov ntug hiav txwv dej. Nruab cov cua lim kom lim corrosive gases xws li sulfides thiab chlorides hauv huab cua; Siv cov cuab yeej ua kom huv hauv huab cua kom tshem tawm cov plua plav tawm ntawm ib puag ncig thiab tsis txhob ua kom lub rooj tsav xwm nrawm nrawm tom qab cov plua plav absorbs noo noo. Tsis tas li ntawd, nyob rau hauv ib puag ncig kaw, kev tiv thaiv nitrogen tuaj yeem siv los hloov cov pa oxygen thiab noo noo hauv huab cua, tsim kom muaj cov pa oxygen tsawg thiab ib puag ncig qhuav, ntxiv dag zog rau kev tiv thaiv corrosion ntawm Circuit Board.