Kuchengetedza akadhindwa edunhu mabhodhi (PCBs) kubva mukukuvadzwa kwakakosha zvakanyanya, uye kushandisa PCB Conformal coating kunogona kuwedzera zvakanyanya kusimba kwavo. Conformal coatings inoshanda ichi chinangwa nekuwedzera inodzivirira layer kuPCB. Mhando huru dzePCB Conformal coatings dzinosanganisira acrylic, silicone, polyurethane, epoxy, uye parylene. Mhando yega yega inopa mabhenefiti akasiyana zvichienderana nezvaunoda chaizvo. Kusarudza iyo chaiyo PCB yekudzivirira coating inobatsira maPCB kuramba mvura, makemikari, uye tembiricha shanduko, pakupedzisira ichiita kuti igare kwenguva refu uye iite zvirinani.
Zano: Ongorora nharaunda uye PCB inoda kusarudza akanakisa Conformal Coatings epurojekiti yako.
Zvitsva Zvitsva
Sarudza iyo coating chaiyo zvichienderana nenzvimbo yePCB yako. Funga nezve mwando, makemikari, uye kupisa.
Acrylic coatings iri nyore kushandisa uye kugadzirisa. Ivo vanoshanda nemapurojekiti anoda kugadziriswa nekukurumidza uye kuchinjika.
Mapendi esilicone anobata kupisa kwakanyanya uye anodzivirira zvikamu zvakapfava. Akanakira mota nezvishandiso zvekurapa.
Polyurethane coatings inopesana nemakemikari uye inogara kwenguva refu. Iwo akakwana kune dzakaoma maindasitiri nzvimbo.
Parylene coatings yakatetepa asi yakasimba. Izvo zvakachengeteka kushandiswa kwekurapa uye kudzivirira pasina kuwedzera uremu.
Acrylic Conformal Coating
Zvivakwa zveAcrylic Coating
Kuputira acrylic kwakanaka pakudzivirira maPCB . Kunodzivirira kupisa zvakanaka nesimba re dielectric re 8300 volts pa mil. Kunoshanda mukupisa kubva pa -75°F (-59°C) kusvika 279°F (137°C). Kuputira uku kunosangana nemitemo yakakosha yeindasitiri yakaita seMIL-I-46058C uye IPC-CC-830A. Kunoenderanawo neRoHS, zvichireva kuti kwakachengeteka kunharaunda.
Heino kutarisa kwakapfava kwezvimiro zvayo:
pfuma | Specification |
|---|---|
Dielectric Strength | 8300 volts / mil |
Temperature Range | -75°F/-59°C kusvika 279°F/137°C |
kutevedzera | MIL-I-46058C, IPC-CC-830A |
RoHS Kuteerana | Ehe |
Repairability | Zviri nyore kugadzirisa |
Discoloration | Inogara yakajeka panguva yekushandiswa kwakajairika |
UV Indicator | Ehe |
UL Kuzivikanwa | Faira E76307 |
Uku kupfekedza kunoshandisa zvinonyungudutsa, saka zviri nyore kuisa nekugadzirisa. Inooma nekukurumidza uye inogara yakajeka, ichikuita kuti uone zvikamu zvePCB zviri nyore.
Zvakanakira Acrylic Coating
Acrylic coating inochengeta maPCB akachengeteka kubva mumvura, huruva, uye makemikari. Inobatsira zvemagetsi kugara kwenguva refu uye kushanda zviri nani. Yakakurumbira kune zvigadzirwa zvevatengi, mota, uye ndege.
Izvo zvakachipa uye zviri nyore kushandisa, zvichiita kuti zvive zvakakosha kune akawanda maindasitiri. Iyo UV chiratidzo inobatsira kutarisa mhando, uye acid yayo kuramba inoshanda zvakanaka mumamiriro akaoma. Kana yakakanganiswa, iwe unogona kuigadzirisa pasina kubvisa iyo yakazara coating.
Zvishandiso zveAcrylic Coating
Acrylic coatings inoshandiswa zvakanyanya mumagetsi. Vanodzivirira maPCB mumidziyo, mota, uye ndege.
Heano mamwe ma coatings acrylic anowanzo shandiswa :
Product Name | tsananguro | Key Features |
|---|---|---|
SanCryl 300 | Acrylic coating inopesana nehunyoro zvakanaka. | Yakanakira PCB kudzivirira uye insulation. |
Humiseal 1B31S | Clear acrylic coating for electronic parts. | Inovhara unyoro, huruva, uye tsvina. |
Konform AR | Acrylic coating yemagungano emagetsi. | Inoshanda munzvimbo dzakaoma, insulation yakanaka. |
Coup CE-1170 | Acrylic coating inozivikanwa nekubata humidity. | Insulation properties yakasimba. |
Aya mabhanhire anoshanda zvakanaka munzvimbo dzine hunyoro hwepamusoro kana kuchinja kwekushisa. Nekushandisa kwakakosha, machira ane graphene anogona kuderedza kupisa kwePCB kusvika ku35 ° C, zvichivabatsira kushanda zviri nani.
Silicone Conformal unhani
Zvivakwa zveSilicone Coating
Kuputira kwesilicone kune zvinhu zvakakosha zvinodzivirira mabhodhi edunhu . Yakagadzirwa nesilicon (Si), oxygen (O), uye alkali groups. Zvinhu izvi zvinoita kuti igone kuchinjika nekuda kwekona yakafara pakati pesilicon neoxygen, iyo inotangira pa100 kusvika 180 degrees.
Uku kupfekedza kunogona kubata kupisa kwakanyanya uye kunogara kwakapfava, zvichiita kuti ive yakanaka kune nhengo dzakatetepa. Inovhara matambudziko emagetsi nemagetsi nekuita sechipinganidzo. Asi haina kumira zvakanaka, saka nzvimbo dzinofanirwa kugadzirirwa zvakanaka dzisati dzashandiswa. Kunyange ichidzivirira kubva mukushushikana, inoita kuti mvura ipfuure zviri nyore, saka haina kunaka kunzvimbo dzine hunyoro.
Zvakanakira Silicone Coating
Silicone coatings inoshanda zvakanaka munzvimbo dzine kupisa kwakanyanya. Havaputsi mukupisa, vachichengeta maPCB achishanda zvakachengeteka. Kupfava kwavo kunobatsira kuchengetedza zvikamu zvisina kusimba senge masensor kana maseketi anopindika.
Mapendi aya anomisawo mapfupi emagetsi nekupa simba rakasimba rekudzivirira kupisa. Anotambanuka uye anodzikira kana tembiricha ikachinja, zvichidzivirira kutsemuka kana kukuvara. Kunyangwe asinganamire zvakanaka, kugadzirira pamusoro nemazvo kunobatsira kuti agare kwenguva refu.
Zvishandiso zveSilicone Coating
Silicone coatings inoshandiswa uko tembiricha inochinja zvakanyanya. Izvo zvakajairika mumotokari uye ndege kuchengetedza PCB mumainjini kana nzvimbo dzinopisa. Zvishandiso zvekurapa zvinozvishandisawo kudzivirira zvikamu zvakapfava zvine runyoro asi rwakasimba.
Mumagajeti, machira e-silicone anodzivirira maseketi anopindika uye ma sensors kubva mukushushikana. Anoshandiswawo mumachina anotarisana nekuchinja kwekushisa. Kana ikashandiswa nemazvo, machira aya anochengetedza magetsi uye anoita kuti agare kwenguva refu.
Polyurethane Conformal Coating
Zvivakwa zvePolyurethane Coating
Polyurethane coating inopa dziviriro yakasimba kuPCB munzvimbo dzakaoma. Inopikisa makemikari zvakanaka, zvichiita kuti zvive zvakanaka kune mamiriro akaoma. Uku kupfekedza kwakasimba, kungoita kushoma pane epoxy. Kuchinjika kwayo kunoita kuti ibate mafambisirwo madiki kana kudengenyeka pasina kutyora.
Unogona kuzora nekunyika, kupfapfaidza, kana kukwesha. Nzira idzi dziri nyore uye hadzidi maturusi anodhura. Nguva yekuomesa inobva pane rudzi rwekuputira. Mamwe machira emucheka mumwechete anooma mumaawa angangoita matatu, zvichikurumidza kugadzirwa.
Zvakanakira zvePolyurethane Coating
Polyurethane coatings ane akawanda mabhenefiti ekudzivirira PCB. Vanodzivisa makemikari zviri nani pane acrylic coatings, kuchengetedza maPCB akachengeteka kwenguva refu. Simba ravo rinodzivirira maPCB kubva mukukuvadzwa, achiita kuti ave akanaka kumabasa akaoma.
Kushandisa machira aya zviri nyore uye zvinogona kuitwa nenzira dzakasiyana. Kukurumidza kuomeswa kwe-single-layer coatings kunobatsira kuchengetedza nguva mumapurojekiti makuru. Ivo zvakare vanoshanda zvakanaka mukupisa kana kutonhora tembiricha, kuve nechokwadi chekuita kwakavimbika.
Zvishandiso zvePolyurethane Coating
Polyurethane coatings anoshandiswa mumaindasitiri mazhinji nekuti anogara kwenguva refu. Izvo zvakajairika mumafekitori umo maPCB anotarisana nemakemikari uye kushushikana. Mota nemabhoti zvinozvishandisa kudzivirira hunyoro uye kubata mavibrations.
Muchiuto uye zvemagetsi zvemuchadenga, zvinodzivirira zvikamu kubva kumamiriro akanyanya. Zvishandiso zvinopfekwa zvinozvishandisawo kuchengetedza maseketi paunenge uchichinjika. Kugona kwavo kushanda munzvimbo dzakawanda kunoita kuti vave sarudzo yakavimbika yePCB chengetedzo.
Epoxy Conformal Coating
Zvivakwa zveEpoxy Coating
Kuputira kweEpoxy kunoita kuti PCB dzive dzakasimba uye dzakasimba. Inobatsira zvikuru pakudzivirira makemikari uye kubata mamiriro akaomarara. Kuputira uku kunovhara hunyoro , guruva, nezvinhu zvinokuvadza zvinobudirira.
Heino pfupiso yakapfava yezvinhu zvayo zvakaedzwa:
Rudzi rweMuyedzo | Tsanangudzo Yemhedzisiro | Notes |
|---|---|---|
Electrochemical Impedance Spectroscopy (EIS) | Zvidzidzo kuti mabhanhire anovharisa sei ngura uye anoputsa nekufamba kwenguva. | Nzira inovimbwa nayo yekuyedza kudzivirira ngura. |
Shear Simba Muedzo | Simba rinotanga pa ≈15 MPa asi rinodonha kusvika ≈7 MPa mushure memaawa masere. | Zviratidziro zvinopera nekufamba kwenguva, asi mhedzisiro inosiyana zvakanyanya. |
Kutora Mvura uye Delamination | Inoongorora mabatiro anoita mabhanhire emvura uye nyaya dzekusvuura. | Inobatsira kunzwisisa kuti mapeji anogara sei mumamiriro akasiyana. |
Epoxy coatings inoshanda zvakanaka uko kunetseka uye makemikari zvakajairika. Asi kuoma kwavo kunoita kuti dzisanyanya kukodzera kushandiswa kunoshanduka.
Zvakanakira zveEpoxy Coating
Epoxy coatings ane akawanda mabhenefiti ePCB kuchengetedza, akadai se:
Kugadzikana kwekupisa : Inobata kupisa kwakanyanya pasina kutyoka, yakakodzera nzvimbo dzinopisa.
Kusashanda Kwemakemikari : Kunovhara mafuta, zvinonyungudutsa, uye makemikari kuti zvigare kwenguva refu.
Kugara Kwemuchina : Inodzivirira maPCB kubva pakukuvadzwa, kukwenywa, uye kushushikana.
Zvimiro zveDielectric : Inochengetedza insulation yakasimba kudzivirira matambudziko emagetsi.
Zvakanakira Zvakatipoteredza : Utsi hushoma hunokuvadza hunoita kuti husakuvadze nharaunda.
Aya maficha anoita epoxy coatings kuvimbika uye kuderedza kugadzirisa zvinodiwa.
Zvishandiso zveEpoxy Coating
Epoxy coatings inoshandiswa muminda yakawanda nekuti yakaoma uye inoshanda zvakasiyana. Zvishandiso zvakajairika zvinosanganisira:
Indasitiri yezvemagetsi :
Inodzivirira maPCB kubva mumvura, tsvina, uye kudedera.
Inovandudza kupisa kuyerera mumwenje we LED.
Inodzivirira mota dzemagetsi mumamiriro akaoma.
Ndege neDziviriro :
Anorinda emagetsi endege kubva pakupisa uye kuzunguzika.
Inovimbisa kuti zvishandiso zvemauto zvinoshanda mumamiriro akanyanya.
Simba Rinodzokororwa :
Inochengetedza solar panel zvakachengeteka kubva pakukuvadzwa kwemvura.
Inoita kuti maturbine emhepo awedzere kuvimbika mumamiriro ekunze akaoma.
Kuzvigadzira Kwemaindasitiri :
Inodzivirira sensors kubva kumakemikari uye kusagadzikana.
Inobatsira kudzora masisitimu kushanda zvakanaka munzvimbo dzakaoma.
Zvemagetsi zveVatengi :
Inowedzera kusimba uye kusagadzikana kwemvura kune zvinopfeka.
Inovimbisa kuti zvishandiso zvepamba zvakachengeteka uye zvakavimbika.
Epoxy coatings isarudzo yakavimbika yekudzivirira maPCB munzvimbo dzakaoma.
Parylene Conformal Coating
Zvivakwa zveParylene Coating
Kuputira parylene kunodzivirira zvakanyanya mabhodhi edunhu. Kunoiswa seutsi, zvichiita kuti pave nechikamu chakatetepa, chakaenzana. Chikamu ichi chinonamira pazvikamu zvese zvePCB. Chinodzivirira mvura, makemikari, uye kupisa kwakanyanya, zvichiita kuti chive chakanakira mamiriro akaoma.
Parylene yakasiyana nekuti yakachengeteka kushandiswa kwekurapa. Haikonzeri maitiro akaipa uye inogara yakagadzikana nekufamba kwenguva. Nzvimbo yaro yakatsetseka inoderedza kupera, kubatsira zvishandiso zvinogara kwenguva refu. Inovharawo ngura uye kukuvara, kunyangwe munzvimbo dzinopisa kana dzakaoma.
Zvakanakira zveParylene Coating
Parylene coating yakasimba uye inoshanda mumamiriro mazhinji. Inodzivirira zvakanaka, kumisa mapfupi maseketi uye kuchengeta maPCB achishanda. Mutsetse wayo wakatetepa hauite kuti zvishandiso zviwande, izvo zvakanakira magadzirirwo emazuva ano.
Kupfeka uku kunoshanda uko vamwe vangakundikana. Semuenzaniso, inopikisa mvura yemuviri nemakemikari, ichiita kuti ive yakakwana kune zvinoiswa mukurapa. Inodzivirirawo zvemagetsi mundege nemotokari kubva pakupisa uye kutenheka.
Mukurapa, Parylene inovandudza michina yakaita semaimplants . Inoderedza kutsamwa uye inodzivirira matishu, zvichiita kuti ave akachengeteka. Chidziviriro chayo chakasimba chinoita kuti michina ishande zvakanaka, kunyangwe mumamiriro ezvinhu akaoma.
Zvishandiso zveParylene Coating
Parylene coating inoshandiswa mumaindasitiri anoda yakasimba PCB kuchengetedzwa. Mumushonga, inobatsira kabhoni fiber electrodes kushanda zvakanaka kweanopfuura gore. Iyo yakatetepa uye inochinjika layer inodzikisa kushatirwa kwetishu, zvichiita kuti ive yakanaka kune inodyarwa.
Tsanangudzo Yeuchapupu | Kubatsira Kwakakosha |
|---|---|
Parylene coating inoshandiswa mu carbon fiber electrode thread arrays | Inovandudza electrode basa uye inogara kwenguva yakareba mukushandiswa kwekurapa. |
Ultrathin uye inochinjika inodyarwa CF electrodes | Inoderedza kushatirwa kwetishu uye inoita kuti kuyerwa kwakadzikama kwegore. |
Mumuchadenga, Parylene inodzivirira zvemagetsi kubva pakupisa nekuzununguka. Mota dzinoshandisa kudzivirira masensa uye masisitimu kubva kumakemikari nemvura. Zvishandiso zvepamba zvinobatsirwa nekugona kwayo kuchengetedza zvikamu pasina kushandura dhizaini yavo.
Parylene coating inovimbwa nemabasa anoda kurongeka nesimba.
Kuenzanisa Mhando dze Conformal Coating
Misiyano Yakakosha Pakati PemaCoating Types
Kupfeka kwega kwega kwe conformal kune simba nekushaya simba kwako. Kuziva misiyano iyi kunokubatsira kusarudza yakanakira PCB yako.
Heino kuenzanisa kuri nyore kweavo makuru maficha:
Coating Type | zvayakanakira | nezvayakaipira |
|---|---|---|
Silicone (SR) | Inoshanda zvakanaka mukupisa kukuru; inopikisa makemikari uye unyoro. | Zvakaoma kubvisa; haigone kukwenya. |
Urethane (UR) | Inopikisa humidity uye corrosion; yakasimba pakurwisa zvikweshwa. | Zvinotora nguva yakareba kuti zviome; ine hutsi hunokuvadza. |
Epoxy (ER) | Yakasimba kurwisa makemikari uye zvikweshwa; yakanaka kune yakaoma mamiriro. | Hazvina kunaka pakupisa kukuru; zvakaoma kugadzirisa kamwe chete kushandiswa. |
Acrylic (AR) | Zviri nyore kushandisa uye kugadzirisa; inomesa nekukurumidza; inopikisa unyoro. | Kushaya simba pamakemikari; kwete yakanaka kune inopisa kana yakaoma mamiriro. |
Parylene (XY) | Insulation yakasimba kwazvo; anopikisa makemikari; hapana nguva yekuomesa inodiwa. | Zvinodhura; zvakaoma kugadzirisa kana kubvisa. |
Mishonga yakasiyana inokodzera kushandiswa kwakasiyana. Semuenzaniso, silicone yakanakira nzvimbo dzinopisa, nepo acrylic iri nani kugadzirisa nyore.
Zano: Funga nezvekuti PCB ichashandiswa kupi uye sei usati wasarudza coating.
Zvinhu Zvokufunga nezvazvo Pakusarudza Coating
Kusarudza coating yakakodzera zvinoenderana nezvinhu zvakati wandei. Kutanga, funga nezvenzvimbo iyo PCB yako ichasangana nayo. Semuenzaniso, silicone kana parylene ndiyo yakanakira nzvimbo dzinopisa zvikuru.
Zvadaro, funga kuti zviri nyore sei kuisa nekugadzirisa. Acrylic iri nyore kushandisa uye kugadzirisa, zvichiita kuti ive yakanaka kumapurojekiti anoda shanduko. Epoxy uye urethane yakasimba asi yakaoma kugadzirisa.
Mutengo wakakoshawo. Parylene inodzivirira zvakanaka asi inodhura zvakanyanya. Kana iwe uchida sarudzo yakachipa, acrylic kana urethane inogona kushanda zvirinani.
Chekupedzisira, funga nezvezvido zvepurojekiti yako. Zvishandiso zvekurapa zvinogona kuda mabhanhire akachengeteka senge parylene. Kushandiswa kwemaindasitiri kungangoda epoxy kana urethane yemakemikari kuramba.
Cherechedza: Nguva dzose edza kupeta paPCB diki kuti uve nechokwadi chekuti inoshanda nezvinhu zvako uye dhizaini.
Kutora iyo chaiyo conformal coating kunobatsira PCB yako kushanda nemazvo uye kugara kwenguva refu. Mhando huru - acrylic, silicone, polyurethane, epoxy, uye parylene - imwe neimwe ine mashandisirwo akasiyana. Acrylic iri nyore kugadzirisa, nepo silicone inobata kupisa zvakanyanya.
Tevedza nhanho idzi kuti usarudze coating chaiyo:
Gadzirisa pendi yacho nemamiriro akaita sehunyoro , guruva, kana magasi anokuvadza.
Ita shuwa kuti inodzivirira kuzvinhu zvakaita semagetsi emagetsi kana mhute yemafuta.
Tarisa ukobvu hunodiwa uye tembiricha renji yezvikamu zvako.
Sarudza machira anotora mvura shoma uye anodzivirira ngura zvakanaka.
Kuchengetedza PCB kwakakosha kuchengetedza zvemagetsi zvakachengeteka uye kushanda. Iko kukoira chaiko kunoita kuti midziyo yako irambe yakasimba uye inoita kuti igare kwenguva refu.
FAQ
Ko conformal coatings inoitei?
Mapendi eConformal anodzivirira mabhodhi ecircuit kubva mumvura, guruva, uye makemikari. Anobatsira kuti magetsi agare kwenguva refu uye ashande zviri nani munzvimbo dzakaoma.
Conformal coatings inoshandiswa sei?
Unogona kupfapfaidza, kunyudza, kana kukwesha pamadziro e conformal. Nzira idzi dzinofukidza PCB zvakaenzana uye dzinoenderana nezvinodiwa zvakasiyana.
Unogona here kubvisa majasi anoenderana?
Hongu, unogona kubvisa conformal coatings nezvinonyungudutsa kana maturusi. Acrylic coatings ndiyo iri nyore kugadzirisa kana kubvisa.
Ndeipi coating inobata kupisa kwakanyanya?
Silicone coatings yakanakira nzvimbo dzinopisa kwazvo. Ivo vanogara vakasimba uye vanochinjika, vachivaita vakanaka kune mota nendege.
Conformal coatings inokodzera here kumidziyo yekurapa?
Parylene coatings yakachengeteka kune zvishandiso zvekurapa. Vanovharira mvura yemuviri nemakemikari uku vachipfava kune ma implants uye sensors.
