PCB potting khoom hauv hluav taws xob tsim thiab sib dhos

Hauv kev tsim hluav taws xob, potting thawv yog ntau heev thiab ua raws li cov ntaub ntawv. Cov no tiv thaiv cov khoom sab hauv ntawm lub thawv los ntawm ib puag ncig thiab kev puas tsuaj rau lub cev. Nrog potting, koj tuaj yeem txhim kho qhov rwb thaiv tsev ntawm cov khoom siv hluav taws xob hauv nqe lus nug.

Txoj hauv kev potting yog txawv ntawm lwm cov tswv yim siv los tsim cov ntaub thaiv npog. Qhov no yog vim hais tias cov enclosures feem ntau muaj cov tebchaw uas yog semi-khoom los tiv thaiv thiab khaws cov khoom. Qhov no tuaj yeem ua rau tsis meej pem thaum lub sijhawm.

tsim

Potting qee zaum hu ua embedment. Qhov no yog cov txheej txheem uas cov khoom siv hluav taws xob tau ntim nrog cov khoom tshwj xeeb lossis cov khoom jelly kom paub tseeb tias muaj kev tiv thaiv zoo dua. Qhov no txhais tau hais tias cov khoom nyob twj ywm tsis muaj corrosive agents, noo noo, dej-gaseous compounds, vibrations, thiab shocks.

Lub thawv potting feem ntau yog qhov nruab nrab rau cov ntaub ntawv me me uas siv los ntim cov khoom siv hluav taws xob los yog lub rooj tsav xwm luam tawm. Ib txhia tuaj nrog ib tug tshwj xeeb kab noj hniav bearing ib tug ntau loj enclosure npaj los muab tshwj xeeb kev tiv thaiv.

Cov txiaj ntsig ntawm Electronic potting

Thaum koj lub lauj kaub hluav taws xob, koj txhawb kev tiv thaiv hluav taws xob, xau, ya raws, thiab tampering. Qhov no ua rau muaj kev cuam tshuam hauv hluav taws xob nrog kev ntseeg tau zoo dua thiab kev ua haujlwm hauv hluav taws xob.

thaum potting compounds yog siv, cov khoom siv hluav taws xob tiv thaiv kev vibrations, shocks, thiab lwm yam kev cuam tshuam. Nyob rau hauv cov ntaub ntawv ntawm kev vibrations, tej zaum yuav muaj ib tug xov tooj disconnections ua rau malfunction ntawm lub system. Kev vibration ntawm PCBs ua rau kev sib txuas ntawm tib yam. Qhov no ua rau kom muaj kev ntxhov siab, thiab koj pom tias lub rooj tsav xwm hauv Circuit Court tsis ua haujlwm ntxov. Potting ua rau cov ntawv luam tawm Circuit Court boards vibration thiab shock-resistant.

Thaum cov khoom siv hluav taws xob lossis hluav taws xob yog potted, nws muaj kev tiv thaiv los ntawm cov av thiab plua plav, uas feem ntau yog cuam tshuam nrog kev txo qis thiab ceev. Nws kuj ua rau muaj teeb meem cuam tshuam thiab overheating.

Potting compounds

Yog tias koj tab tom nrhiav hauv Is Taws Nem, koj yuav pom ntau yam khoom siv potting sib txuas uas koj tuaj yeem xav siv. Txawm li cas los xij, koj yuav tsum txaus siab tias tag nrho cov potting tebchaw tsis sib npaug. Lawv txhua tus muaj lawv cov txheej txheem pros thiab cons.

Hom ntawm potting compound koj xaiv yuav tsum yog nyob ntawm qhov project koj tuav. Feem ntau, tib neeg xaiv rau silicone urethane thiab epoxy.

Xaiv cov sib xyaw kom raug

Muaj ntau yam tseem ceeb uas yuav tsum tau xav txog thaum xaiv qhov zoo tshaj plaws compound. Lawv suav nrog:

Hardness: Yog tias koj xav tau kev puas tsuaj thiab huab cua tsis kam, ces cov sib txuas nyuaj yog qhov zoo tagnrho. Urethane thiab epoxy yog qhov zoo tshaj plaws hauv qhov no. Lawv muab cov txiaj ntsig nyuaj thiab nyuaj thaum kho. Silicone mus ib qho nyuaj tab sis saj zawg zog hardness.

Viscosity: Qee daim ntawv thov xav tau viscosity tsawg kom tso cai rau cov tebchaw ntws thiab qib. Standard compounds muaj hom viscosity no.

Xim: koj yuav tsum xav txog xim ib yam nkaus, tshwj xeeb tshaj yog tias pom tau yog qhov teeb meem. Muaj txhua hom xim thiab pob tshab sib txuas rau cov ntawv siv optically meej.

Thermal conductivity: Nws yog ib txwm muaj tswv yim los xaiv qhov zoo tshaj plaws conductivity kom yooj yim dissipate los yog tswj cov cua sov uas feem ntau yog synonymous nrog pab kiag li lawm. Silicone yog qhov zoo tshaj plaws hauv qhov no.

cov kab hauv qab

Muaj ntau qhov kev txiav txim siab uas yuav tsum tau ua thaum nrhiav qhov zoo tshaj plaws potting compound. Nrog lub tswv yim zoo hauv siab, koj yuav tsum tau txais qhov kev xaiv zoo tshaj plaws. Txoj kev yooj yim tshaj plaws kom ua tiav qhov no yog ua haujlwm nrog DeepMaterial. Peb tuaj yeem qhia koj txog cov txheej txheem xaiv thaum muab cov kev cai daws teeb meem kom haum rau koj qhov kev xav tau tshwj xeeb.

Rau ntxiv txog Cov khoom siv PCB potting hauv kev tsim hluav taws xob thiab kev sib dhos, koj tuaj yeem them mus ntsib DeepMaterial ntawm https://www.epoxyadhesiveglue.com/category/pcb-potting-material/ yog xav paub ntau info.