PCB potting compound xaiv rau cov khoom siv hluav taws xob los ntawm cov khoom lag luam potting

Hauv ntau cov khoom siv hluav taws xob, nws yog ib qho tseem ceeb kom ua tiav kev ruaj ntseg thiab kev tiv thaiv ntev. Nws yog ib txoj hauv kev uas yuav tiv thaiv tsis tau ntxov ntxov. Kev nce hauv Circuit Court ceev thiab cov tshuab me me tau ua rau muaj kev ua haujlwm siab ntau. Qhov no tau ua rau nws tsim nyog los nrhiav cov kev daws teeb meem zoo tshaj plaws ntawm cov cua sov.

Cov txheej txheem siv

Cov thev naus laus zis sib txawv tuaj yeem siv los tiv thaiv cov khoom siv hluav taws xob, tshwj xeeb tshaj yog cov rhiab heev. Qhov no suav nrog:

• Casting: nyob rau hauv cov ntaub ntawv no, lub hardenable los yog catalyzed kua yog poured rau hauv pwm. Cov cam khwb cia no yuav zoo li cov pwm, uas tuaj yeem rov qab siv dua.
• Potting: qhov no yog qhov uas cov kua ua kua los yog cov kua catalyzed yog nchuav rau hauv lub vaj tsev lossis lub plhaub, uas tseem yog ib feem ntawm tag nrho chav tsev.
• Encapsulation: qhov no suav nrog lub plhaub nyias lossis cov txheej tiv thaiv uas tau muab tso rau ntawm ib qho kev sib dhos lossis cov khoom siv. Hloov chaw mus tas li, siv pwm. Thaum koj tshem tawm cov pwm, cov resin kho tseem nyob rau sab nraud.
• Sealing: qhov no yog qhov chaw thaiv qhov chaw ntawm lub thawv ntim khoom vaj khoom tsev
• Impregnation: nyob rau hauv cov ntaub ntawv no, ib feem yog immersed kiag li nyob rau hauv cov kua los xyuas kom meej lub interstices yog wetted los yog soaked.

Cov khoom siv potting

Hardeners thiab resins yog xav tau nyob rau hauv encapsulation thiab potting. Resins yog siv hauv kev lag luam hluav taws xob thiab hluav taws xob. Cov pawg tseem ceeb yog polyesters, kub yaj, silicone, urethane, thiab epoxy. Qhov no nyob ntawm hom tshuaj.

Epoxy: epoxy muaj cov khoom siv thermal zoo uas tso cai rau nws ua haujlwm qhov twg muaj qhov kub thiab txias. Qee zaum, epoxy tuaj yeem tsim tau kom nws tuaj yeem raug kub hnyiab ntau dua. Cov tebchaw no ruaj khov thiab kwv yees tau thoob plaws hauv tag nrho cov txheej txheem. Lawv muaj kev tiv thaiv zoo heev rau cov tshuaj tshwj tsis yog cov kua qaub. Lawv muab qhov zoo tshaj plaws adhesion thiab lub zog ntawm qhov ntxeem tau thiab tsis ntxeem tau.

Urethanes: urethanes muaj ntau yam ntawm cov yam ntxwv ntsig txog hardness. Lawv siv rau ntawm cov ntawv luam tawm hauv Circuit Court boards thiab tuaj yeem kho kom ceev cov txheej txheem. Lawv tuaj yeem siv rau hauv cov ntawv thov uas xav tau kev tiv thaiv tshav kub. Lawv yog cov tshuaj resistant thiab. Yog tias koj xav tau daim ntawv cog lus hloov pauv, urethane yog qhov kev xaiv zoo tshaj rau koj.

silicone: Qhov no yog qhov sib xyaw ua ke uas tuaj yeem hloov kho kom qis thiab siab dua qhov kub thiab txias. Muaj ntau daim ntawv thov sib xyaw ua ke no. Lawv muab ib qho yooj yim thiab mos daim ntawv cog lus uas yuav kho tau los ntawm UV. Silicone muaj cov kuab tshuaj tiv thaiv zoo. Ib qho teeb meem tseem ceeb ntawm silicone yog tus nqi siab thiab qhov tseeb tias nws ua haujlwm zoo nrog qee cov yas.

Kub yaj: Cov no yooj yim heev rau siv, thiab lawv teem ceev. Lawv yog ib qho kev xaiv zoo rau qhov sib txawv-filling. Lawv tuaj yeem raug tshem tawm rau lub hom phiaj ntawm kev rov ua dua thiab kho dua tshiab. Lawv muaj qhov tsis zoo rau cov cua sov tab sis kuj hnyav hnyav. Cov no tuaj yeem yog polyolefin, polyurethane, lossis polyamide-based.

Polyester resins: unsaturated polyester resins feem ntau yog siv hauv hluav taws xob potting daim ntaub ntawv. Mechanical yam ntxwv yog nruj kom yoog raws. Qhov kub thiab tshuaj tiv thaiv ntawm cov ntaub ntawv yog ncaj ncees. Lawv muaj adhesion zoo rau cov hlau thiab.

Yuav qhov zoo tshaj plaws

Txhawm rau nkag mus rau qhov zoo tshaj plaws potting tebchaw, ua haujlwm nrog DeepMaterial. Peb muaj ntau yam sib txuas thiab lwm yam khoom siv uas tuaj yeem siv rau hauv kev lag luam thiab DIY tej yaam num. Peb tuaj yeem yooj yim kev cai-ua cov kev daws teeb meem kom tau raws li koj cov kev qhia tshwj xeeb.

Yog xav paub ntxiv txog PCB potting compound xaiv rau cov khoom siv hluav taws xob los ntawm potting khoom manufacturers, koj tuaj yeem them mus ntsib DeepMaterial ntawm https://www.epoxyadhesiveglue.com/category/pcb-potting-material/ yog xav paub ntau info.