Allolin da'ira (PCBs) da aka buga (PCBs) sun ƙunshi mafi mahimmancin abubuwan na'urar lantarki. Don kare waɗannan abubuwan da aka gyara daga lalacewa, injiniyoyin lantarki suna amfani da manyan hanyoyi guda biyu: PCB tukwane da suturar tsari.

Dukansu PCB potting da conformal shafi suna amfani da kwayoyin polymers don kare PCBs da abubuwan haɗin lantarki masu alaƙa. Menene kamanni da bambance-bambance tsakanin waɗannan hanyoyin, kuma wanne ne ya dace don aikace-aikacen lantarki? Don farawa, bari mu gano yadda kowace dabara ke aiki.

Menene PCB Potting?
PCB potting wata hanya ce da ake amfani da ita don kare allunan da'ira (wanda ake magana da su a cikin waɗannan mahallin a matsayin substrate) ta hanyar cika shingen PCB tare da wani abu mai ruwa da ake kira fili na potting ko resin encapsulation. Ginin tukunyar ya cika ma’adanin na’urar, kuma, a mafi yawan lokuta, yana rufe dukkan alluran da’ira da abubuwan da ke cikinta, duk da cewa a wasu lokuta ana iya amfani da ita wajen tukunyar abubuwan da ke jikin na’urar.

Potting yana ba da kyakkyawan juriya na abrasion, da kuma kariya daga zafi, sinadarai, tasiri da sauran haɗarin muhalli. Abubuwan da ake amfani da su na yau da kullun sun haɗa da epoxy, polyurethane da mahaɗan silicone.

Nau'in PCB Potting
Anan ga kwatancen sauri na mafi yawan kayan tukwane na PCB:

· Epoxy: Kayan tukwane na PCB na yau da kullun kuma mai dorewa tare da juriya mai ƙarfi, babban mannewa da sauran abubuwan da ake so. Babban illarsa shine dogon lokacin warkewa wanda yake buƙatar saitawa.
Polyurethane: Kayan tukwane mai laushi kuma mai jujjuyawa wanda ke da kyau don kare masu haɗe-haɗe da sauran kayan lantarki waɗanda ƙila ba za su iya jurewa da ƙaƙƙarfan kayan aiki ba. Duk da haka, danshin poylurethane da juriya na zafi bai dace da wasu kayan tukwane ba.
Silicone: Ɗaya daga cikin mahaɗan da suka fi ɗorewa kuma masu sassauƙa, kuma wanda ke da amfani musamman ga aikace-aikacen da ke buƙatar jure matsanancin yanayin zafi. Farashin sa mai girma, duk da haka, yana sa ya zama mara amfani ga wasu aikace-aikacen.

Menene Rufin Conformal?
Shafi na yau da kullun wata hanya ce ta kare PCBs waɗanda ke lulluɓe da substrate tare da bakin ciki Layer na fim ɗin polymeric ko wani abu mara amfani. Shafi na yau da kullun shine kawai 25 zuwa 250 microns, yana mai da shi zaɓi mafi sauƙi fiye da tukunyar PCB wanda ke ɗaukar sarari kaɗan. Yana ba da kariya mai kyau daga haɗari kamar lalata da ƙwayoyin cuta, kuma hana ruwa mai daidaitacce shima yana taimakawa kariya daga danshi.

Akwai kayan shafa da yawa daban-daban. Zaɓuɓɓuka na yau da kullun sun fito ne daga nau'ikan nau'ikan nau'ikan kayan kamar tukunyar PCB, gami da epoxy da mahadi na silicone, da sauran zaɓuɓɓuka kamar acrylic da polymer mai ɗorewa mara ƙarfi da ake kira parylene.

Hanyoyin aikace-aikacen gama gari sun haɗa da nau'ikan feshin aerosol iri-iri, kama daga na hannu, bindigar feshi da mutum ke sarrafa don mafi mahimmancin aikace-aikace zuwa tsarin zaɓin zaɓi mai sarrafa kansa lokacin da saurin ya zama fifiko. Tufafin tsoma kuma zaɓi ne da ake amfani da shi sosai kuma mai tsada don aikace-aikacen da ke buƙatar ƙaramin abin rufe fuska.

Nau'in Rubutun Conformal
Kowane tsari na sutura da kayan aiki yana kawo fa'idodinsa da ƙalubale ga aikace-aikace daban-daban:

Acrylic: Ainihin nau'in suturar da ake amfani da ita don nau'ikan kayan lantarki da yawa da sauran aikace-aikacen samar da taro. Acrylic conformal coatings ne mai kyau-kewaye zabi da kuma su ne daya daga cikin kawai shafi nau'in da cewa shi ne in mun gwada da sauki cire, amma ba su bayar da musamman yi da cewa wasu shafi iri-iri yi.
Parylene: Rubutun polymer da ake amfani da shi azaman iskar gas, wanda ya zama fim mai ɗorewa da ɗorewa. Rubutun Parylene suna ba da kyakkyawan ƙarfin dielectric da sauran halaye masu kyau, amma suna da matukar wahala a cire su, mai yuwuwar yin gyare-gyare.
Epoxy: Wani abu ne mai ɗorewa mai ɗorewa wanda ke da kyau don aikace-aikacen buƙatu, godiya ga yanayin sa mai wuya da sauƙi. Wannan taurin kuma yana sa ya yi wuya a cire kuma babban raguwarta bazai yi kyau ga abubuwan da suka dace ba.
Urethane: Shahararren zaɓi don aikace-aikacen sutura masu dacewa a cikin masana'antar sararin samaniya, godiya ga mafi girman abrasion da juriya. Koyaya, farashin wannan karko shine, kamar sauran nau'ikan sutura, urethane yana da wahalar cirewa.
Silicone: Rufin guduro na silicone yana aiki da kyau a cikin yanayi daban-daban na muhalli, gami da kewayon zafin jiki mai faɗi da kuma cikin babban zafi. Juriyar abrasion ɗinsu ba ta da kyau kamar wasu zaɓuɓɓuka, duk da haka, kuma cirewar na iya zama ƙalubale.

PCB Potting vs. Conformal Coating
Yanzu da muka saba da tushen PCB potting da conformal shafi, lokaci ya yi da za a tambaya: Wanne ne mafi girma PCB kariya bayani? Amsar, kamar yadda zaku yi tsammani, ta dogara da aikace-aikacen da kuke amfani da waɗannan fasahohin.

Dukansu tukwane na PCB da suturar da suka dace zasu taimaka kare tushen ku daga ƙananan tasiri, lalata, girgiza, danshi da sauran haɗari na gama gari. A ƙasa, duk da haka, akwai wasu mahimman wuraren da PCB potting da conformal shafi sun bambanta. Yi la'akari da waɗannan batutuwa yayin zabar zaɓin mafi kyawun aikace-aikacen ku:

Potting PCB babban zaɓi ne don aikace-aikacen da ke buƙatar juriya mai ƙarfi ga girgiza, tasiri, abrasion, zafi da/ko sinadarai. Gabaɗaya, zaɓi ne mai ɗorewa kuma mai juriya wanda ya dace da aikace-aikacen buƙatun jiki.
· Resins na PCB suna ba da kariya mai kyau daga baka na lantarki, don haka sau da yawa za ku sami PCB tukwane da ake amfani da su don na'urorin lantarki masu ƙarfi.
· Potting PCB tsari ne mai sauri wanda za'a iya yi cikin sauri da sauƙi akan layin taro.
Sake yin aiki, gyarawa ko duba na'urar tukwane na PCB yana da wahala kuma yana iya haifar da lalacewa ga ma'aunin. PCBs tare da sutura masu dacewa suna da sauƙin aiki da su.
· Rubutun na yau da kullun suna sanya kusan babu damuwa ta jiki akan ma'auni, wanda ke taimakawa kare PCBs tare da abubuwa masu mahimmanci kamar ƙananan fil.
Shafi na yau da kullun yana ƙunshe da ƙarancin sarari a cikin shingen na'ura kuma yana ƙara nauyin na'urar ƙasa da tukunyar PCB. Wannan ya sa ya zama mafi kyawun zaɓi don na'urori inda girman da nau'in tsari ke da mahimmancin damuwa. Ma'auni ne na masana'antu don na'urorin lantarki na hannu kamar wayoyin hannu.

Ba da damar samfuran lantarki don cimma halaye na aiki da ƙayyadaddun ayyuka ta hanyar ingantaccen aikin haɗin gwiwa na mannen lantarki wani bangare ne kawai na mafita na adhesives na lantarki na DeepMaterial. Kare allunan da'irar da aka buga da ingantattun abubuwan lantarki daga zazzagewar zafi da mahalli masu cutarwa wani mahimmin sashi ne don tabbatar da dorewa da amincin samfur.

DeepMaterial ba wai kawai yana ba da kayan don cika guntuwar guntu da marufi na COB ba amma har ma yana ba da madaidaicin suturar adhesives masu ƙarfi uku da adhesives na katako, kuma a lokaci guda yana kawo kyakkyawan matakin kariyar allo ga samfuran lantarki. Aikace-aikace da yawa za su sanya allunan da'ira da aka buga a cikin wurare masu tsauri.

DeepMaterial's ci-gaba conformal shafi mai tabbaci uku da tukunya. Adhesive zai iya taimaka bugu allon da'irar tsayayya da zafi zafi, danshi-lalata kayan da daban-daban wasu yanayi mara kyau, don tabbatar da samfurin yana da dogon sabis rayuwa a cikin matsananci aikace-aikace muhallin. DeepMaterial's conformal shafi uku-hujja manne tukunyar jirgi fili ne mai kauri-free, low-VOC abu, wanda zai iya inganta tsari yadda ya dace da kuma la'akari da hakkin kare muhalli.