Tsvagiridzo pamusoro pekugadzikana kweiyo Insulation Performance yeConformal Coating Materials panguva Yekureba Kwekushandisa

 

Sechinhu chakakosha chekuchengetedzwa kwemagetsi maseketi, conformal coatings inogona kugadzira yunifomu uye yakatetepa inodzivirira layer pamusoro peakadhindwa edunhu mabhodhi (PCBs) uye zvikamu zvawo. Iyi dura rekudzivirira haingodzivise zvakatipoteredza zvakaita sehunyoro, guruva, uye makemikari zvinhu kubva mukudzura zvinhu zvemagetsi asi zvakare kuita basa rakakosha mukudzivirira kusvika pamwero mukuru. Inovimbisa kuparadzaniswa kwemagetsi pakati pezvikamu zvakasiyana mumidziyo yemagetsi uye inovandudza kuvimbika uye kugadzikana kwemidziyo. Nekudaro, ingave iyo insulation kuita kwe conformal coating materials inogona kuramba yakagadzikana panguva yekushandiswa kwenguva refu mubvunzo unokodzera kudzidza zvakadzama. Nekuvandudzwa kwemidziyo yemagetsi yakananga kuminiaturization, kuita kwepamusoro, uye kuvimbika kwepamusoro, izvo zvinodikanwa zvekudzikama kwekuita kwekudzivirira kweiyo conformal coatings zviri kuramba zvichikwira nekukwira. Naizvozvo, kunzwisisa mitemo yekuchinja uye zvinopesvedzera zvinhu zvekuvharisa mashandiro ezvipfeko zvakakoshwa panguva yekushandiswa kwenguva refu zvakakosha zvikuru kuve nechokwadi chekushanda kwakajairika kwemidziyo yemagetsi.

Kuumbwa uye Insulation Nheyo yeConformal Coatings

(1) Kuumbwa kweConformal Coatings

Conformal coatings zvinhu kazhinji ine zvinhu zvakaita semapolymer matrices, kurapa maajenti, uye zvinowedzera. Iyo polymer matrix ndiyo chikamu chikuru che conformal coatings, uye zvakajairika zvinosanganisira acrylic resins, epoxy resins, uye silicone resins. Akasiyana polymer matrices ane akasiyana ekuita maitiro. Semuenzaniso, ma acrylic resins ane kujeka kwakanaka uye kuchinjika, epoxy resins ane yakanakisa adhesion uye makemikari kuramba, uye silicone resins ine yakakwira-tembiricha kuramba uye kushanda kwemagetsi ekudzivirira. Basa remushonga wekurapa nderekuita kuti iyo polymer matrix iite muchinjiko-inobatanidza kuita kuti igadzire danda rekudzivirira nehumwe kuoma uye kusimba. Zvinowedzera zvinosanganisira mafirita, maajenti ekuyeresa, defoaming agents, nezvimwewo, izvo zvinogona kuvandudza mashandiro ekuvaka uye kuita kwekudzivirira kwejasi.

(2) Insulation Principle

Iko kusevha kuita kwe conformal coatings kunonyanya kuenderana neiyo molecular chimiro uye kemikari bond maitiro ezvazvinoumba zvinhu. Macheni emamorekuru ari mupolymer matrix anopindirana pamwe chete kuti aumbe inoenderera uye yakaomesesa yekudzivirira layer. Muchikamu chino chekudzivirira, chemikemikari zvisungo (zvakadai se covalent bonds) pakati pemamorekuru ane simba repamusoro rebhondi, zvichiita kuti zviome kuti maerekitironi afambe akasununguka pakati pemamorekuru. Uye zvakare, zvekuwedzera senge mafirita mune conformal coatings anogona kuwedzera kunatsiridza mashandiro avo ekudzivirira. Semuyenzaniso, mamwe inorganic fillers anogona kuzadza mikaha pakati pemamorekuru uye kuderedza conduction nzira dzemaerekitironi. Kana mudziyo wemagetsi uchibatidzwa uye uchishanda, iyo conformal coating inogona kudzivirira ikozvino kuyerera munzira isingatarisirwe, nekudaro kuzadzisa chinangwa chekudzivirira magetsi.

 

Zvinhu Zvinokanganisa Kugadzikana Kwenguva Yakareba Kweiyo Insulation Kuita kweConformal Coatings

(1) Zvinhu Zvakatipoteredza

1. unyoro: Kunyorova ndechimwe chezvinhu zvakakosha zvinokanganisa mashandiro ekudzivirira kweiyo conformal coatings. Kana hunyoro hwezvakatipoteredza hwakwira, mamorekuru emvura anogona kupinda mukati mekudzivirira kweiyo conformal coating uye kupindirana nemamorekuru epolymer. Kuvapo kwemamorekuru emvura kunoderedza simba re intermolecular, zvichiita kuti zvive nyore kuti maerekitironi afambe pakati pemamorekuru, nokudaro zvichikonzera kudzikira kwekudzivirira kwekudzivirira. Kana yakafumurwa kune yakakwira-humidity nharaunda kwenguva yakareba, inogona zvakare kukonzera hydrolysis maitiro eiyo conformal coating, ichiparadza iyo molecular chimiro chepolymer uye ichiwedzera kudzikisa kwayo kusevha.
2. tembiricha: Shanduko mutembiricha inogona kuve nemhedzisiro yakakosha pakuita kwekudzivirira kweiyo conformal coatings. Munzvimbo ine tembiricha yepamusoro-soro, kufamba kwekupisa kwemapolymer molecules kunowedzera, chinhambwe chiri pakati pemamorekuru chinowedzera, uye kugona kuita kwemaerekitironi kunowedzerwa, zvichikonzera kudzikira kwekudzivirira kwekudzivirira. Uye zvakare, tembiricha yakakwira inogonawo kusimudzira kuchembera kweiyo conformal coatings, zvichikonzera shanduko mukuora uye muchinjika-wekubatanidza maitiro epolymer mamorekuru, ayo anokanganisa mashandiro avo ekudzivirira. Munzvimbo yakadzika-kupisa, iyo conformal coating inogona kuita brittle uye yakaoma, uye kutsemuka uye kukuvara kungangoitika, nekudaro zvichiparadza kutendeseka kweiyo insulation yekudzivirira layer.
3. Chemical Zvinhu: Zvigadzirwa zvemagetsi zvinogona kusangana nemakemikari akasiyana-siyana panguva yekushandiswa chaiko, senge maasidhi, alkali, uye munyu. Izvi makemikari zvinhu zvinozoita kemikari pamwe neiyo conformal coating, inobvisa iyo inodzivirira layer, uye inoparadza yayo mamorekuru. Semuenzaniso, acids inogona kupinda mu hydrolysis reaction ne ester bonds mu epoxy resins, kuderedza kushanda kwe resin; alkalis inogona kuita nesilicon-okisijeni zvisungo musilicone resins, zvichitungamira mukuipa kwekuita kwekudzivirira.

(2) Magetsi Zvinhu

1. Magetsi Munda Simba: Kana iyo conformal coating iri pasi pesimba remagetsi rakakwirira, maerekitironi anogona kuwana simba rakakwana kukunda intermolecular binding uye kukonzera kuparara kwechiitiko. Kushanda pasi pesimba remagetsi rakakwirira kwenguva yakareba kuchawedzera kuderera kwekushanda kwekudzivirira kweiyo conformal coating uye kunyange kutungamirira mukukundikana kwekudzivirira. Mukuwedzera, kugoverwa kusina kuenzana kwemunda wemagetsi kuchaitawo kuti simba remagetsi emunharaunda rive rakakwirira zvikuru, kuwedzera njodzi yekuparara kwekudzivirira.
2. Corona Discharge: Mu-high-voltage magetsi emagetsi, apo simba remagetsi rinosvika kune imwe nhanho, corona discharge phenomenon ichaitika pedyo nechepamusoro pe conductor. Kubuda kweCorona kunoburitsa tembiricha yakakwira, ozone, uye ultraviolet mwaranzi, nezvimwe, uye izvi zvinhu zvinokonzeresa kukuvadza kune conformal coating. Ozone inogona kuita nemapolymer mamorekuru, ichityora cheni dzemamorekuru; ultraviolet mwaranzi ichatanga iyo photoaging reaction yepolymer, ichideredza kushanda kwayo kwekudzivirira.

(3) Mechanical Factors

1. Vibration uye Impact: Zvishandiso zvemagetsi zvinogona kukanganiswa nekuzunguzika uye kukanganisa panguva yekushanda, izvo zvinounza kushushikana kwemakanika pane inodzivirira layer ye conformal coating. Kwenguva refu vibration uye kukanganisa kunogona kukonzera kutsemuka, peeling, uye zvimwe zviitiko mune conformal coating, ichiparadza iyo insulation kuita kwayo. Kunyanya mune dzimwe nzvimbo dzekushanda dzakaoma, dzakadai semotokari, aerospace, uye mamwe minda, pesvedzero yekuzunguza uye kukanganisa kwakanyanya kukosha.
2. pfeka: Mune mamwe maitiro akakosha ekushandisa, iyo conformal coating inogona kukanganiswa nekupfeka, senge kukwesha uye kukwenya. Kupfeka kuchaita zvishoma nezvishoma kuti iyo yekudzivirira yeiyo conformal coating iite mutete uye kuderedza kuita kwayo kwekudzivirira. Semuenzaniso, mumaseketi emagetsi padhuze nezvimwe zvikamu zvinofamba, iyo conformal coating inogona kupfekwa nekuda kwekukwesha nezvikamu zvinofamba.

 

Kuedza Nzira dzeKuongorora Kugadzikana kweInsulation Performance yeConformal Coatings

(1) Insulation Resistance Test

Insulation kuramba ndechimwe chezviratidzo zvakakosha zvekuyera mashandiro ekuisa mukati meiyo conformal coatings. Nekushandisa insulation resistance tester, kukosha kwekupokana kweiyo inodzivirira layer ye conformal coating inoyerwa pasi peimwe voltage. Panguva yekuyedzwa, maelectrode ebvunzo anofanirwa kuve akabatana zvakanaka nepamusoro peiyo conformal coating kuti ive nechokwadi chechokwadi chechiyero chemhedzisiro. Iyo yakakwira iyo insulation yekudzivirira kukosha, zvirinani kuita kwekudzivirira kweiyo conformal coating. Munguva yekushandiswa kwenguva refu, iyo insulation yekudzivirira bvunzo inogona kuitwa nguva nenguva kuona shanduko yayo uye kuongorora kugadzikana kwekuita kwekudzivirira.

(2) Dielectric Constant uye Dissipation Factor Test

Iyo dielectric inogara uye dissipation chinhu akakosha ma paramita anoratidza mashandiro einsulation of conformal coatings pasi penzvimbo yemagetsi inochinjana. Iyo dielectric inomira inomiririra kugona kwezvinhu kuchengetedza simba remagetsi pasi pechiito chemunda wemagetsi, uye iyo inoparadza inomiririra dhigirii remagetsi kurasikirwa kwezvinhu pasi pechiito chemunda wemagetsi. Nekushandisa dielectric constant tester uye dissipation factor tester, iyo dielectric inogara uye dissipation factor ye conformal coating pama frequency akasiyana anogona kuyerwa. Munguva yekushandiswa kwenguva refu, kana dielectric inogara uye disipation factor ichichinja zvakanyanya, inoratidza kuti iyo insulation performance ye conformal coating ingave yakakanganiswa.

(3) Kuputsa Voltage Test

The breakdown voltage inoreva kukosha kwevoltage uko conformal coating inoputsika pasi pechiito chemunda wemagetsi. Nekuwedzera zvishoma nezvishoma magetsi anoshandiswa kune conformal coating kusvika chiitiko chekuparara chaitika, kukosha kwevoltage kwakanyorwa panguva ino ndiko kuparara kwemagetsi. Iyo yakakwira iyo voltage yekuputsika, ndizvo zvirinani kuita kwekudzivirira kweiyo conformal coating, uye inogona kumira yakakwirira yemagetsi simba remunda. Munguva yekushandiswa kwenguva refu, iyo yekuputsika voltage bvunzo inogona kuitwa nguva nenguva kuti iongorore kugadzikana kwekuita kwekudzivirira kweiyo conformal coating pasi pechiito chemunda wemagetsi.

(4) Damp Heat Kuchembera Muedzo

Iyo yakanyorovesa kupisa kuchembera bvunzo inotevedzera iyo yakareba-yekushandisa mamiriro eiyo conformal coating munzvimbo yakakwirira-yakadzika uye yepamusoro-tembiricha. Iwo masampula akaputirwa neiyo conformal coating anoiswa mune inonyorovesa kupisa yekuchembera mukamuri, uye tembiricha uye humidity mamiriro anodzorwa. Mushure meimwe nguva yekuchembera, iyo insulation performance yemasampuli inoedzwa. Nekuenzanisa zviratidzo zvekushanda kwekudzivirira pamberi uye mushure mekukwegura, kugadzikana kwekushanda kwekudzivirira kweiyo conformal coating munzvimbo ine unyoro inopisa inogona kuongororwa.

(5) Munyu Spray Corrosion Test

Iyo munyu yekupfapfaidza corrosion test inoteedzera mamiriro ekuora kweiyo conformal coating munzvimbo ine munyu spray. Iwo masampuli akaputirwa neiyo conformal coating anoiswa mukamuri yekupfapfaidza munyu, uye mushonga wekupfapfaidza munyu weimwe kusungwa unopfapfaidzwa. Mushure meimwe nguva yekuora, iyo insulation performance test uye kutaridzika kwekutarisa kwemasampuli kunoitwa. Nekutarisa mamiriro ekuora uye kuchinjika kwekushanda kwemasamples, kugadzikana kwekuita kwekudzivirira kweiyo conformal coating munzvimbo yemunyu yekupfapfaidza inogona kuongororwa.

 

Kuedza Nyaya uye Data Analysis

(1) Kuedza Magadzirirwo

Kuti udzidze kugadzikana kwekushanda kwekudzivirira kwejasi rejasi panguva yekushandiswa kwenguva refu, kuyedza kunotevera kwakagadzirwa: Sarudza mhando nhatu dzakasiyana dzemajasi ekumisikidza (acrylic resin, epoxy resin, uye silicone resin), woapfekedza pamabhodhi edunhu akadhindwa zvichiteerana kuti ugadzirire samples dzebvunzo. Gurai masampuli mumapoka matatu uye muite zvakasiyana-siyana zvinokurumidza kukwegura kuedza: Boka rekutanga rinoita kuedza kwekupisa kwekuchembera kwakanyorova, nekushisa kunoiswa pa85 ° C uye hunyoro hunoiswa pa85%, uye nguva yekukwegura i1000 maawa; boka rechipiri rinoitisa kuyedza kwemunyu kupfapfaidza kuora, nemunyu wekupfapfaidza ye5% uye nguva yekuora kwemaawa mazana mashanu; boka rechitatu rinoita corona discharge experiment, ine simba remagetsi rakaiswa pa500 kV/cm uye nguva yekubuda kwemaawa mazana maviri. Munguva yekuedza, kuramba kwekudzivirira, dielectric kugara, dissipation factor, uye kuparara kwemagetsi emasampuli kunoedzwa nguva dzose.

(2) Kuedza Migumisiro uye Analysis

1. Mibairo yeDamp Heat Kuchembera Kuedza: Mushure memaawa 1000 ekuchembera kwekunyorova kwekupisa, kudzivirira kwekudzivirira kwemhando nhatu dzemajasi akachinjika ese akadzikira kusvika madhigirii akasiyana. Pakati pavo, kudzivirira kwekudzivirira kwe acrylic resin conformal coating kwakaderera zvakanyanya, kubva pakutanga 10 ^ 12Ω kusvika 10 ^ 9Ω; kupikisa kwekudzivirira kwe epoxy resin conformal coating yakaderera kusvika 10 ^ 10Ω; iyo insulation yekudzivirira yesilicone resin conformal coating yakadzikira zvishoma, kusvika 10 ^ 11Ω. Iyo dielectric inogara uye dissipation factor yakawedzerawo kusvika pamwero wakati, zvichiratidza kuti nyoro yekupisa nharaunda ine simba guru pakuita kwekudzivirira kweiyo conformal coatings, uye marudzi akasiyana-siyana ekupfeka anokanganiswa kune akasiyana madhigirii.
2. Mibairo yeSalt Spray Corrosion Experiment: Mushure mekuyedza kuodzwa kwemunyu wekupfapfaidza, madhigirii akasiyana ezvinoitika zvekuora zvakaonekwa pameso emhando nhatu dzemajasi anoenderana. Iyo corrosion ye acrylic resin conformal coating ndiyo yakanyanyisa, ine mitswe iri pachena uye kusvuuka pamusoro; kuora kweiyo epoxy resin conformal coating kwaive kwakapfava, asi kwaivewo nemamwe makwapa ekuora; iyo corrosion resistance yesilicone resin conformal coating ndiyo yaive yakanyanya kunaka, iine mavanga mashoma ekuora pamusoro. Panyaya yekushanda kwekudzivirira, kudzivirira kwekudzivirira kwe acrylic resin conformal coating yakaderera kusvika 10 ^ 8Ω, epoxy resin conformal coating yakaderera kusvika 10 ^ 9Ω, uye silicone resin conformal coating yakaderera kusvika 10 ^ 10Ω.
3. Mibairo yeCorona Discharge Experiment: Mushure mekuyedzwa kwecorona discharge, mashandiro ekudzivirira emhando nhatu dzemachira akabatikana akakanganisika kune imwe nhanho. Iyo yekuputsika voltage ye acrylic resin conformal coating yakadzikira zvakanyanya, kubva pakutanga 20 kV kusvika 10 kV; kuparara kwemagetsi epoxy resin conformal coating yakaderera kusvika ku15 kV; iyo yekuputsika voltage yesilicone resin conformal coating yakadzikira kusvika 18 kV. Iyo dielectric inogara uye dissipation chinhu chakawedzera kusvika pamwero wakati, zvichiratidza kuti kubuda kwecorona kunokonzeresa kukuvadzwa kwekuita kwekudzivirira kwemajasi anowirirana.

 

Matanho eKuvandudza Kugadzikana Kwenguva Yakareba Kweiyo Insulation Kuita kweConformal Coatings

(1) Inonzwisisika Sarudzo yeConformal Coatings

Sarudza akakodzera mhando dzemajasi akapfeka zvinoenderana nemamiriro ekushandisa uye zvinodiwa zvemagetsi zvigadzirwa. Semuyenzaniso, munzvimbo ine hunyoro hwepamusoro-soro, majasi anopindirana neakanaka unyoro kuramba, senge silicone resin kana epoxy resin conformal coatings, inofanira kusarudzwa; munzvimbo ine njodzi yekuora kwemakemikari, conformal coatings ine yakasimba makemikari kuramba inofanira kusarudzwa. Panguva imwecheteyo, teerera kumhando uye zviratidziro zvemaitiro ezvipfeko zvakakoshwa, uye sarudza zvigadzirwa zvakapfuura kuomarara kuyedzwa uye chitupa.

(2) Nzira Yakarurama Yokuvaka

Iyo nzira yekuvaka ye conformal coatings ine kukosha kwakakosha pakuita kwavo kwekudzivirira uye kugadzikana kwenguva refu. Isati yavakwa, iva nechokwadi chokuti pamusoro pebhodhi redunhu rakadhindwa rakachena, rakaoma, uye risina mavara emafuta, huruva, uye kumwe kusvibiswa. Panguva yekuvaka, shanda zvakasimba maererano nemirayiridzo yekushandiswa kwekuputira, uye chengetedza kukora kwekuputira uye kufanana. Mushure mekuputira, ita zvakakwana kurapa kurapwa kuti uve nechokwadi chekuti iyo yekupfeka inoumba yakanaka yekudzivirira layer.

(3) Kunyatsogadzirisa uye Kuongorora

Gara uchichengetedza uye ongorora zvishandiso zvemagetsi, uye tarisa kana paine makatsemuka, peeling, corrosion, uye zvimwe zviitiko pane inodzivirira layer ye conformal coating. Panguva imwecheteyo, ita bvunzo dzekushanda kwekudzivirira nguva nenguva kuti uone shanduko mukuita kwekudzivirira panguva. Kana zvikaonekwa kuti iyo insulation performance ye conformal coating inoderera kana iyo yekudzivirira layer yakakuvadzwa, gadzirisa kana kuipfekedza zvakare panguva yakakodzera.

mhedziso

Iyo insulation performance ye conformal coating materials ichabatwa nezvinhu zvakasiyana-siyana zvakakwana panguva yekushandiswa kwenguva refu, kusanganisira zvakatipoteredza, zvinhu zvemagetsi, uye mechanical factor. Mhando dzakasiyana-siyana dzekupfeka dzakashongedzwa dzine hunyanzvi hwakasiyana hwekushivirira kune izvi zvinhu, uye kune zvakare misiyano mukugadzikana kwekuita kwavo kwekudzivirira panguva yekushandiswa kwenguva refu. Kuburikidza nekusarudzwa kwakaringana kwekupfeka kwakaringana, nzira dzekuvaka dzakaringana, uye kugadzirisa kunoshanda uye kutarisa, kugadzikana kwenguva refu kweiyo insulation kuita kwe conformal coatings kunogona kuvandudzwa kune imwe nhanho, ichipa vimbiso yekushanda kwakavimbika kwemidziyo yemagetsi. Nekudaro, nekuenderera mberi kwekuvandudzwa kwehunyanzvi hwemagetsi, izvo zvinodikanwa zveinsulation performance ye conformal coatings zvinozove zvakakwirira nepamusoro. Mune ramangwana, zvinodikanwa kuita imwe tsvakiridzo yakadzama pamusoro pekuita uye kushandiswa kweiyo conformal coatings kuti isangane nekuenderera mberi kwekusimudzira zvinodiwa zvemagetsi zvigadzirwa. Mumashandisirwo anoshanda, zvinhu zvakasiyana-siyana zvinofanirwa kutariswa zvakazara zvinoenderana neakananga mashandisirwo mamiriro uye zvinodiwa, uye akakodzera conformal coatings anofanirwa kusarudzwa, uye matanho anoenderana anofanirwa kutorwa kuti ive nechokwadi chekugadzikana kwenguva refu kwekuita kwavo insulation.

Kuti uwane zvimwe nezve tsvakiridzo pamusoro pekugadzikana kweiyo insulation kuita kwe conformal coating zvinhu panguva yekushandiswa kwenguva refu, unogona kushanyira Deepmaterial pa. https://www.adhesivesmanufacturer.com/ nokuti zvimwe info.