Cov khoom siv hluav taws xob puas tuaj yeem siv rau ob leeg nruj thiab yoog raws PCBs?

Electronic potting khoom Nws yog ib qho tseem ceeb rau kev muab rwb thaiv tsev thiab tiv thaiv cov khoom siv hluav taws xob thiab hluav taws xob los ntawm kev puas tsuaj ib puag ncig - ya raws, plua plav, kev vibrations - thiab muab PCB (Printed Circuit Board) uas ntxiv me ntsis ntawm kev txhawb nqa tshuab. Nws yog txhua yam hais txog kev muab kev ntseeg siab thiab kav ntev los txhim kho peb cov khoom siv hluav taws xob niaj hnub.

 

Kev ua lag luam muaj ntau yam khoom siv potting, txhua tus muaj cov khoom tshwj xeeb uas ua rau lawv haum rau kev siv tshwj xeeb. Epoxy resins nqa tau yooj yim; polyurethane resins xa thermal conductivity; silicone roj hmab muaj cov khoom siv tshuaj tiv thaiv, thaum cov ntaub ntawv thermoplastic sawv tawm hauv lub sijhawm kho. Txhawm rau kom ntseeg tau tias koj pom qhov haum rau koj qhov project, xav txog kev ua haujlwm kub, qib kev tiv thaiv lossis cov yuav tsum muaj cov khoom siv zoo.

Cov khoom siv hluav taws xob puas tuaj yeem siv rau ob leeg nruj thiab yoog raws PCBs?

Cruising ncaj nraim mus rau lub plawv ntawm qhov teeb meem - ua tau ib tug electronic potting khoom tuav nws tus kheej nrog nruj thiab hloov tau PCBs? Rigid PCBs hitched los ntawm cov ntaub ntawv nruj xws li fiberglass lossis epoxy resin, thaum supple flexi-PCBs caij nplooj ntoos hlav tawm los ntawm ntau qhov nruab nrab malleable. Nws tiag tiag yog qhov sib txawv hmo ntuj thiab nruab hnub ntawm lawv - lawv cov suppleness lossis hardness.

 

Qhov pom tseeb yooj yim coj los ntawm kev nrhiav cov khoom siv thoob ntiaj teb rau ob qho tib si endued peb nrog lub peev xwm los ua kom yooj yim rau peb cov txheej txheem tsim khoom, ib zaug txiav cov nqi thiab txo qis kev tswj cov khoom lag luam, tag nrho thaum ua kom peb tau txais kev ua tau zoo & kev ntseeg siab thoob plaws ntau hom PCBs.

 

Tsob ntoo potting cov ntaub ntawv rau nruj PCBs

Tau ntau xyoo, epoxy resins tau ua pov thawj tias yog cov khoom siv hluav taws xob zoo rau ntau yam PCBs nruj. Lawv tau txais txhua yam: los ntawm lub zog thiab tshuaj tiv thaiv rau thermal stability thiab pheej yig - khoom hardy! Txawm li cas los xij, tag nrho cov hnub qub ntim tiv thaiv no muaj qee qhov tsis zoo; ua kom tawv thiab nkig ua rau lawv tsis haum thaum qhov yooj yim yog qhov tseem ceeb, thaum lawv qhov kub thiab txias tuaj yeem ua teeb meem nrog cov khoom kub-rhiab heev.

 

Polyurethane resins zuam lub thawv yog tias koj xav tau ib yam dab tsi zoo dua, thaum silicone roj hmab ua kom koj cov hluav taws xob rwb thaiv tsev zoo tshaj plaws thiab muab kev pom zoo nrog cov xwm txheej kub kub. Txawm hais tias ob qho kev xaiv yuav nce tus nqi me ntsis piv rau epoxy resin, lawv tseem muab cov txiaj ntsig tshwj xeeb.

 

Kev sib tw hauv potting saj zawg zog PCBs

Potting flex PCBs yog qhov kev cia siab tsis yooj yim - lawv tuaj yeem khoov thiab sib tw, yog li cov khoom siv potting yuav tsum tuav ruaj, txawm tias nyob rau hauv lub ntsej muag ntawm txhua yam uas ncab thiab hloov. Ntxiv rau, nws yuav tsum nyob twj ywm nruj nrog tsis muaj hlwv lossis npuas!

 

Cov nplaum ntawm qhov chaw yooj yim nthuav qhia me ntsis ntawm qhov teeb meem, ib yam nkaus; Yog tias koj cov khoom siv potting tsis sib haum nrog nws (piv txwv li, yuav tsis ua raws li qhov zoo), koj tsis muaj hmoo txog kev ua haujlwm zoo.

 

Thiab qhov ntawd tsis muaj kev pheej hmoo me me los txiav txim siab yam kev phom sij ntawm cov dej noo tuaj yeem nqa tau. Cov kab hauv qab: yog tias koj npaj rau potting flex PCBs, xyuas kom koj muaj cov ntaub ntawv tsim nyog yog qhov tseem ceeb.

 

Qhov zoo ntawm kev siv cov khoom siv hluav taws xob rau cov khoom siv hluav taws xob hloov pauv PCBs

Plexible PCBs tuaj nrog lawv txoj kev ncaj ncees ntawm kev tawm tsam; Txawm li cas los xij, muaj cov khoom siv hluav taws xob potting ntawm koj sab tuaj yeem coj tau ntau qhov zoo - qhov yooj yim yog qhov tseem ceeb. Cov khoom siv hluav taws xob hauv hluav taws xob yog tsim los khoov thiab sib tw ntau zaus tsis muaj kev tawg lossis sib cais, zoo dua li cov tshuaj epoxy resins. Xyuas kom tag nrho cov Cheebtsam thiab circuitry nyob twj ywm tsis muaj mob txawm tias thaum flexed muab nws ib tug ntug tshaj lwm tus.

 

Txhawm rau tiv thaiv kev puas tsuaj ib puag ncig xws li ya raws, plua plav, thiab kev vibrations - tsis muaj dab tsi zoo li cov khoom siv hluav taws xob potting! Raws li nws tsim cov ntaub thaiv npog nyob ib ncig ntawm cov khoom sib koom ua ke, dej tsis kam nkag, txo cov kev puas tsuaj rau corrosion; Ntxiv rau, nws subtly npog qhov kev vibrations, uas pab txo qis kev puas tsuaj los ntawm kev siv tshuab.

 

Cov khoom siv hluav taws xob potting sawv tawm thaum ua ke nrog ntau hom substrates - polyimide thiab polyester-derived saj zawg zog PCB, piv txwv li - lo yooj yim vim lawv cov nplaum. Qhov no ua rau muaj kev sib raug zoo ntawm ob lub substrates, tiv thaiv kev sib cais ntawm txhua tus nqi.

 

Qhov sib txawv ntawm nruj thiab yoog raws PCBs

Rigid thiab saj zawg zog PCBs yog xyaum hmo ntuj thiab nruab hnub - ib tug zoo li pob zeb, lwm yam dabtsi yog khoov zoo li ib tug nab. Cov khoom uas lawv tau ua los ntawm kev cuam tshuam rau lawv cov khoom hauv qee txoj kev tawm tsam. Yog tias koj tau txais kuv qhov drift, dab tsi ua haujlwm rau cov laug cam yuav tsis tas ua rau cov hloov tau yooj yim.

 

Cov kev sib txawv no txhais tau hais tias xaiv cov khoom siv potting tsis yog ib qho yooj yim caij: koj txoj kev xaiv yuav nyob ntawm seb yuav ua li cas nruj lossis khoov nws yuav tsum yog thaum txhua tus hais thiab ua tiav! Rau cov kauj ruam uas yuav tsum nyob ruaj khov - xav tias PCBs ntawm cov khoom nruj - peb xav tau ib yam dab tsi uas muab cov khoom siv dag zog nrog kev tiv thaiv ib puag ncig.

 

Tab sis qhov twg yooj yim tshaj plaws, peb yuav mus rau ib yam dab tsi ntau pliant los tiv thaiv rov sib tw tsis muaj succumbing rau kev puas tsuaj.

 

Thaum kawg, cia peb xav txog qhov kub thiab txias, thiab. Nyob rau tib lub sij hawm, kub heev tej zaum yuav tsis faze stiffer cov ntaub ntawv; lawv cov kwv tij txheeb ze tsis tuaj yeem siv cua sov ntau, yog li xaiv qhov kub thiab txias raws li qhov xav tau tsawg dua qhov zoo tshaj plaws ib zaug ua tiav.

 

Kev ntsuam xyuas thiab kev siv tau ntawm cov khoom siv hluav taws xob rau cov khoom siv hluav taws xob hloov pauv PCBs

Kev ntsuam xyuas thiab kev lees paub yog qhov tseem ceeb rau kev ua haujlwm zoo tshaj plaws ntawm cov khoom siv hluav taws xob hauv hluav taws xob siv hauv cov PCB hloov tau. Tau txais kev tuav pov hwm ntawm cov khoom muaj peev xwm txwv pab kom nws ua tau raws li txhua tus qauv tsim nyog.

 

Ib qho kev ntsuas thermal cycling yog ib txoj hauv kev los ntsuas qhov kev ntseeg siab ntawm cov ntaub ntawv no nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias. Nws tso cai rau peb coj tawm lub peev xwm - lossis qhov tsis muaj - uas tej zaum yuav tsis tau qhia tawm.

 

Qhov kev sim ua kom yooj yim kuj yuav tsum tau ua txog PCBs txhais tau tias yuav khoov lossis flex thaum siv! Qhov no yuav pab txiav txim seb cov khoom no puas tuaj yeem kho rov kho dua yam tsis muaj kev puas tsuaj xws li tawg lossis delamination.

 

Thaum kawg, tseem muaj kev ntsuas dej noo, kev ntsuas tshuaj tiv thaiv thiab kev ntsuas hluav taws xob hluav taws xob raws li cov khoom tseem ceeb rau kev txiav txim siab seb cov khoom no puas tuaj yeem tiv thaiv zoo los ntawm kev cuam tshuam zoo li dej nkag.

Lo lus kawg

Electronic potting khoom pob zeb lub tsev rau inflexible thiab saj zawg zog PCBs. Thaum lub tsev kawm ntawv qub goopy khoom yog qhov txaus ntshai ntawm cov PCBs tsis muaj zog, nws yuav tsis txiav nws nrog cov khoom kho tau. Cov khoom siv hluav taws xob hauv hluav taws xob tuaj yeem ua tau txhua yam - muab qhov yooj yim txaus ntseeg thiab tawv uas ua tau raws li txhua lub rooj tsav xwm xav tau.

 

Hom khoom no them tawm vim tias koj tau txais kev tiv thaiv tsis zoo tiv thaiv ib puag ncig kev cuam tshuam, tsis muaj teeb meem kev sib raug zoo ntxiv (ua tsaug rau nws qhov dav ntawm substrates) thiab super stellar kev ntseeg siab. Txawm hais tias qee qhov kev ntxhov siab xws li cov npuas huab cua lossis cov teeb meem adhesion tuaj yeem tshwm sim luv luv raws li koj cov PCB taug kev, khob lawv rov qab nrog qee qhov kev sim ua ntej lawv loj.

 

Yog xav paub ntxiv txog kev xaiv Electronic Potting Materials, koj tuaj yeem them mus ntsib DeepMaterial ntawm https://www.electronicadhesive.com/about/ yog xav paub ntau info.