Akadhindwa Circuit Boards (PCBs) anoshandisa PCB Conformal Coating kudzivirira unyoro neguruva. Uku kupfekedza kunopawo dziviriro kubva kune kwakasiyana kukuvara kwezvakatipoteredza. Paunenge uchigadzirisa kana kusimudzira, zvakakosha kuti ubvise PCB Conformal Coating nekungwarira. Rudzi rumwe norumwe rwekuputira runoda imwe nzira yekubvisa, sezvo kushandisa nzira isiriyo inogona kukuvadza bhodhi kana zvikamu zvayo. Gara uchikoshesa kuchengetedza nekushandisa maturusi akakodzera uye giya rekuchengetedza. Nekungwarira, unogona kuchengetedza PCB uye kupedza mabasa ako zvinobudirira.
Zvitsva Zvitsva
PCB coatings chengetedza mapuranga ematunhu akachengeteka kubva mumvura, huruva, uye makemikari. Izvi zvinovabatsira kuti vagare kwenguva refu.
Sarudza nzira yakarurama yekubvisa coating. Sarudzo dzinosanganisira kushandisa makemikari, maturusi, kupisa, kana twunhu tudiki tunopwanya.
Gara wakachengeteka nekupfeka magirovhosi, magirazi, uye kushanda mumhepo yakachena paunenge uchibvisa machira.
Kana iyo yekupfeka yadzimwa, geza PCB zvakanaka. Tarisa kukuvara usati wawedzera coating nyowani.
Kuedza kazhinji uye kushandisa zvinhu zvakasimba kunogona kuchengetedza PCB kushanda zvakanaka uye kuita kuti igare kwenguva refu.
Chii chinonzi PCB Conformal Coatings uye Nei Uchichibvisa?
Chinangwa uye Mabhenefiti ePCB Conformal Coatings
PCB conformal coatings inodzivirira mapuranga edunhu kubva mukukuvadza. Vanovhara hunyoro, guruva, uye makemikari kubva mukukuvadza bhodhi. Izvi zvinobatsira kumisa ngura uye kuita kuti bhodhi rishande zvakanaka. Iko kupfekedza kunoita kuti bhodhi riome, saka rinoshanda mumamiriro ezvinhu akaoma. Midziyo inoshandiswa kunze kana mumafekitari inobatsirwa nedziviriro iyi.
Chimwe chinobatsira kumisa zvikabudura zvemagetsi. Iyo yekupfekedza inodzivirira zvikamu zvebhodhi. Izvi zvinoderedza mukana wewaya kubata netsaona. Inobatsira mudziyo kushanda zvakachengeteka uye zvakanaka. Pakazara, machira aya anobatsira zvemagetsi kugara kwenguva refu.
Zvikonzero Zvakajairwa Zvekushandazve kana Kubvisa Coatings
Dzimwe nguva, unofanira kubvisa PCB coatings. Chimwe chikonzero kugadzirisa kana kutsiva zvikamu zvakaputsika. Kuti usvike kune zvikamu, kuvhara kunofanira kubviswa zvakanyatsonaka.
Chimwe chikonzero matambudziko nekuputira pachayo. Kana bhodhi risina kucheneswa risati raputirwa, rinogona kusamira zvakanaka. Izvi zvinogona kuita kuti chifukidzo chiputike kana kudonha, chichisiya bhodhi risina kudzivirirwa. Tsvina yakasara pabhodhi inogona kukonzera nyaya senge simbi diki kukura, izvo zvinogona kutungamira kune mapfupi maseketi. Kubvisa coating kunogadzirisa matambudziko aya.
Ungangodawo kugadzirisa mabhachi asina kuenzana kana asina kukwana. Kupfeka kwakatsetseka kwakakosha kuchengetedza bhodhi uye kushanda zvakanaka.
Nzira dzekubvisa PCB Conformal Coatings
Kemikari / Solvent Kubviswa
Kubvisa kemikari inzira yakajairika yekubvisa machira. Inoshandisa zvinwiwa zvakakosha kunyungudutsa coating kuti ibvise nyore. Izvi zvinoshanda zvakanaka kune acrylic, silicone, uye urethane coatings. Acrylic coatings inonyungudika nekukurumidza, asi silicone uye urethane inoda makemikari akasimba uye nguva yakawanda.
Sarudza solvent zvichienderana nekuchengeteka kwayo uye kuti inoshanda sei. Mamwe masolvents anozivikanwa anosanganisira:
Solvent | Zvishandiso uye Zvimiro | Best Concentration |
|---|---|---|
Isopropyl Doro (IPA) | Inobvisa mafuta uye tsvina; inoomesa nekukurumidza. | 99% kana kupfuura |
Methyl ethyl ketone (mek) | Yakasimba kupfuura IPA; inobvisa machira akaoma; bata nokungwarira. | N / A |
Toluene | Powerful; anobvisa pendi uye machira; inoomesa zvishoma nezvishoma. | N / A |
Xylene | Zvakafanana ne toluene; inoomesa nespeed iripakati nepakati. | N / A |
Trichlorethylene (TCE) | Bvuura machira akaomeswa pasina kukuvadza mhangura. | N / A |
Kuti ushandise nzira iyi, isa chinonyungudutsa pamucheka uye rega chinyorove. Wobva wapukuta zvinyoro nyoro kana kupukuta jira rakapfava. Gara wakapfeka magirovhosi nemagirazi, uye shanda munzvimbo ine mhepo yakanaka kuti ugare wakachengeteka.
Mechanical Removal
Mechanical kubvisa zvikwapuro kana kugaya coating kubva pabhodhi. Yakanakira machira akaomarara senge epoxy kana parylene inopikisa makemikari. Shandisa maturusi akaita sema scrapers, midziyo inotenderera, kana yakanaka sandpaper yeiyi nzira.
Iyi nzira inogona kukuvadza bhodhi kana ikaitwa zvisina hanya. Kukorobha nekukuya zvinoshanda zvakanaka asi zvinogona kukuvadza nhengo dzakatetepa. Shandisa nzira iyi chete kana nzira dzemakemikari kana kupisa dzisingashande.
Kuti udzivise kukuvadzwa, shandisa zvishandiso zvine zvigadziriso zvinogadziriswa uye shandisa kudzvanywa kwechiedza. Shanda panzvimbo diki kuti urambe uchitonga uye kudzivirira bhodhi. Kubviswa kweMechanical kwakanakira zvigadziriso zvidiki kana machira asingakwanise kunyungudika nemakemikari.
Thermal Removal
Kubvisa kupisa kunoshandisa kupisa kupfavisa kana kupisa coating. Izvi zvinoita kuti zvive nyore kubvisa. Iyo inoshanda nemazvo kune yakaoma machira senge epoxy anopikisa makemikari. Zvishandiso zvakaita sepfuti dzekupisa, ironing irons, kana akakosha ekupisa zvinoshandiswa.
Makabati akasiyana anoda mazinga ekupisa chaiwo kuti aabvise. Semuyenzaniso:
Coating Type | Kupisa (°C) | Features |
|---|---|---|
silicone | -65 ku200 | Inopikisa unyoro uye kuvhunduka; inochinjika uye iri nyore kushandisa. |
Epoxy | N / A | Zvakaoma uye makemikari-resistant; yakaoma kubvisa pasina kukuvara. |
Acrylic | -59 ku132 | Zvakachipa uye zvakasimba; nyore kuisa asi inokwenya zviri nyore. |
Urethane | N / A | Durable uye solvent-resistant; zvakaoma kushandisa. |
Paraxylene | N / A | Very uniform; inovhara mapini zvakanaka; inodhura uye inoda vacuum application. |
Kuti ubvise zvipfeko nekupisa, zviise kusvikira jira rinyoro. Zvadaro, bvisa kana kubvisa. Chenjerera kuti urege kupisa bhodhi, sezvo kupisa kwakanyanya kunogona kukanganisa zvikamu. Kubvisa kupisa kunoshanda zvakanaka kune yakaoma machira asi inoda kungwarira kutonga kupisa kuchengetedza bhodhi rakachengeteka.
Micro-Abrasive Kubviswa
Micro-abrasive kubviswa inzira yakangwarira yekubvisa machira. Inoshandisa zvinhu zvidiki zvinoputika, senge aluminium oxide kana kubika soda, kubvisa zvinyoronyoro. Chishandiso chakakosha chinomwaya zvimedu izvi panzvimbo yakavharwa. Izvi zvinokutendera kuti utarise pane chaiwo nzvimbo pasina kukuvadza bhodhi riri pasi.
Iyi nzira yakanaka kune yakaoma machira senge epoxy kana parylene. Aya machira haabvi nyore nemakemikari kana kupisa. Yakachengeteka zvakare kumabhodhi asina kusimba uko dzimwe nzira dzinogona kukanganisa. Micro-abrasive kubviswa kunoita kuti ubvise coating zvishoma nezvishoma, kuchengetedza bhodhi rakachengeteka.
Zvishandiso zveMicro-Abrasive Removal
Iwe unozoda micro-abrasive blasting system yeiyi nzira. Aya masisitimu anowanzo sanganisira:
Mhepo inoputika: Inonangisa iyo abrasive material painodiwa.
Air compressor: Inosundidzira mabrasive particles nesimba rakakwana.
A containment system: Inounganidza zvakashandiswa kuchengetedza nzvimbo yakachena.
Iwe unogona kushandura kudzvanywa uye abrasive mhando zvichienderana nekupfeka. Mabrasives akapfava, senge pasoda, anoshandira machira matete. Zvakaoma, senge aruminiyamu oxide, zviri nani kune dzakakora kana dzakaomarara machira.
Zvakanakira zve Micro-Abrasive Removal
Iyi nzira ine zvakawanda zvinobatsira:
zvakarurama: Inobvisa kupfeka kubva munzvimbo diki pasina kubata zvikamu zviri pedyo.
Kusiyanisa: Inoshanda pane akawanda machira, kunyangwe ayo anopesana nekupisa kana makemikari.
Kukuvadza kuduku: Maitiro acho ari munyoro uye anodzivirira bhodhi uye zvikamu zvaro.
Asi, iyi nzira inoda maturusi akakosha uye maitiro. Edza pabhodhi rekuedza kutanga. Gara wakapfeka giya rekuchengetedza, senge magirazi uye magirovhosi, kuti uzvidzivirire kubva kune zvimedu.
Uchishandisa nzira iyi, unogona kubvisa zvakachengeteka machira uchichengeta PCB yako yakasimba. Isarudzo huru yemabasa anonyengera ekugadzirisa.
Zvishandiso uye Matekiniki eNzira Yega Yega yekubvisa
Zvishandiso zveKemikari / Solvent Removal
Kemikari nzira dzinonyungudika conformal coatings se acrylic, silicone, uye urethane. Iwe unoda aya maturusi uye matanho ekuchengetedza:
Zvinonyungudutsa: Shandisa yakasimba senge toluene kana acetone kune yakaoma machira. Kune acrylic, isopropyl doro (IPA) inoshanda zvakanaka.
Container: Shandisa mudziyo wesimbi usina simbi pakunyorova. Dzivisa plastiki sezvo inogona kuputsika.
kufefetedza: Kuyerera kwemhepo kwakanaka kunobvisa utsi hunokuvadza.
PPE: Pfeka magirovhosi nemagirazi kudzivirira ganda rako nemaziso.
UV Kuongorora Mwenje: Mwenje weUV unobatsira kuwana machira uye kutarisa kubviswa.
Brushes uye Compressed Air: Izvi zvakasara zvakachena zvakasara mushure mekunyungudutsa coating.
Nguva dzose tevera mirairo ye solvent uye ugare wakachengeteka.
Zvishandiso zvekubvisa Mechanical
Mechanical kubvisa zvikwapuro kana kukuya machira kubva paPCB. Inoshanda zvakanyanya kune yakaoma machira senge epoxy. Iwe uchada:
Scrapers uye Dental Picks: Zvishandiso izvi zvinobvisa machira munzvimbo diki.
Rotary Zvishandiso: Shandisa izvi kukuya marata akaomarara. Inogadziriswa kumhanya inodzivirira PCB kukuvara.
Fine Sandpaper: Inobvisa zvinyoronyoro pasina kukuvadza bhodhi.
Kukudza Girazi kana Maikorosikopu: Nyatsoongorora kudzivirira kukuvadza PCB.
Shandisa chiedza chekumanikidza uye shanda panzvimbo diki kuti urambe uri mukutonga.
Zvishandiso zvekubvisa Thermal
Kubvisa kupisa kunoshandisa kupisa kupfavisa kana kupisa machira. Izvi zvinoshanda kune epoxy uye silicone coatings. Zvishandiso zvauchazoda zvinosanganisira:
Pisa Pfuti: Tanga nekupisa kwakadzika (kunenge 100 ° C) uye wedzera zvishoma nezvishoma.
Kutengesa Irons: Pisa nzvimbo diki chaizvo.
Thermal Parting Devices: Zvishandiso izvi zvinodzora kupisa zviri nani.
Sharp Blades: Cheka mabhachi akapfava nekungwarira kuti abvise.
Edzai kupisa panzvimbo isingakoshi kutanga. Dzivisa kupisa kudzivirira PCB.
Zvishandiso zveMicro-Abrasive Removal
Micro-abrasive kubviswa kunoshandisa yakakosha maturusi kudzivirira iyo PCB. Zvishandiso izvi zvinobatsira kutarisa panzvimbo diki pasina kukuvadza zvikamu zviri pedyo. Kuziva mashandiro avanoita kunoita kuti pave nemigumisiro iri nani.
Zvishandiso zvakakosha zveMicro-Abrasive Removal
Kuputika Nozzle: Inovavarira mabrasive particles chaipo panodiwa. Inoparadzira zvinhu zvakaenzana kuti ibvise kutsetseka.
Mhepo Compressor: Inosundidzira abrasive particles ane inogadziriswa kumanikidza. Izvi zvinokutendera kuti udzore kuti kuomeswa kwejasi kunorohwa sei.
Containment Sisitimu: Inounganidza zvakashandiswa kuchengetedza nzvimbo yako yekushandira yakachena uye yakachengeteka.
Abrasive Media: Zvishandiso zvakaita sealuminium oxide kana baking soda zvinoshandiswa. Aluminium oxide inobvisa machira akaomarara, ukuwo pasoda yekubikisa yakachengeteka panzvimbo dzakatetepa.
Zvimiro uye Zvinetso zveMicro-Abrasive Zvishandiso
Zvishandiso zveMicro-abrasive ndezvechokwadi uye zvinochinjika. Zvidzidzo zvinoratidza kuti vanoshanda zvakanaka kune vasina kusimba PCB. Asi, vanogona kupera nekukurumidza uye vane miganhu mukuchera kwakadzika.
Feature/Dambudziko | Details |
|---|---|
Cutting Temperature | Inogara yakaderera, yakatenderedza 127 ~ 143 ℃ yekuchera 20-layer PCB. |
Tool Wear | Hard fillers mukati PCB konzera kuti midziyo ipere nekukurumidza. |
Common Coatings | Dhaimondi, DLC, TiN-based, uye CrN-based coatings inowanzoshandiswa. |
Diamond Coating Benefits | Inoramba kupfeka uye inoderedza kukwesha zvinobudirira. |
Hupenyu hweDiamond Coated Tools | Inogara kusvika maburi 20,000, yakareba kudarika maturusi asina kuvharwa. |
Miganhu ye Diamond Coating | Brittle edges inogona kutyoka panguva yebasa rakadzika rekuchera. |
Mazano Anobatsira eMibairo Yakanakisa
Rongedza kudzvinyirira kwemhepo zvichienderana nerudzi rwekupfeka. Shandisa kudzvinyirirwa kwakaderera kune machira matete uye kumanikidza kwepamusoro kune akaoma.
Sarudza iyo chaiyo abrasive media. Soda yekubikisa yakapfava uye inodzivirira nhengo dzakasimba.
Tarisa maturusi ako nguva zhinji kuti akapfeka. Zvishandiso zvakasakara zvinogona kuderedza kurongeka uye kuita.
Kushandisa maturusi akakodzera uye nzira dzinochengeta yako PCB yakachengeteka panguva yekubvisa kupfeka. Micro-abrasive kubviswa inzira yakavimbika yekubata yakaoma machira.
Kuchengetedza Kuchengetedza Panguva Kubviswa
Kubata Kwakachengeteka Kwemakemikari uye Zvinonyungudutsa
Ngwarira paunenge uchishandisa makemikari uye zvinonyungudutsa. Gara uchipfeka magirovhosi uye magirazi ekuchengetedza kuchengetedza ganda rako nemaziso. Kune makemikari akasimba, shandisa zvinofema nemaapuroni kuti uwedzere kuchengeteka. Shanda munzvimbo ine mhepo yakanaka kudzivirira kufema utsi hunokuvadza.
Chengeta makemikari zvakanaka. Nyora midziyo ine mazita uye yambiro. Chengetedza zvinonyungudutsa mumakabhati asina moto, kure nechero chinhu chinogona kuita zvine njodzi. Tevera mitemo pakurasa zvinonyungudutsa. Chenesa zvinorasika kudzivirira kusvibiswa.
muromo: Iva nemidziyo yekurasa yakagadzirira kuchenesa tsaona nekukurumidza.
Kuchengetedza PCB kubva Kukuvadzwa
Chengetedza PCB yakachengeteka paunenge uchibvisa machira. Shandisa zvishandiso zvine zvigadziriso zvinogadziriswa kudzora kupisa kana kudzvanywa. Iva munyoro paunenge uchikwesha kana kukuya kudzivirira kutyora zvidimbu zvidiki.
Usapisa bhodhi paunenge uchishandisa maturusi ekupisa. Kupisa kwakanyanya kunogona kupeta PCB kana kukuvadza nhengo dzinonzwa. Edzai zvinonyungudutsa panzvimbo diki kutanga kuti mutarise kana zvakachengeteka kubhodhi.
Tarisa PCB kazhinji paunenge uchishanda. Shandisa magnifying glass kuti uone kukuvara nekukurumidza. Shanda panzvimbo diki kuti urambe uri mukutonga uye kudzivirira kukanganisa.
chitsamba: Fukidza zvikamu zviri pedyo ne tepi kuti uzvidzivirire kubva kumakemikari kana maturusi.
Zvishandiso Zvekuzvidzivirira Pamunhu (PPE) Zvinodiwa
Kupfeka iyo PPE chaiyo inokuchengetedza iwe uchishanda. Magirovhosi anodzivirira maoko ako kubva kumakemikari nemidziyo. Magirazi ekuchengetedza anochengetedza maziso ako kubva kune zvinopfapfaidza uye zvimedu zvinobhururuka. Shandisa chinofema kudzivirira kufema utsi hunokuvadza kubva muzvinonyungudutsa zvakasimba.
Sarudza PPE zvichienderana nenzira yauri kushandisa. Pakukwenya, pfeka magirovhosi nekubata kwakanaka. Kumakemikari, shandisa magirovhosi nemaapuroni anopikisa makemikari. Ita shuwa kuti nzvimbo yako yekushandira ine mhepo yakanaka kana kushandisa feni kubvisa utsi.
Chiyeuchidzo: Tarisa PPE yako usati waishandisa. Dzorera chero chinhu chakatyoka kana chasakara.
Kusarudza Yakanakisa Kubvisa Nzira Yenyu Yekupfeka Type
Acrylic Coatings
Acrylic coatings yakachipa uye iri nyore kushandisa. Kuzvibvisa zviri nyore nekuti zvinonyungudika nekukurumidza muzvinonyungudutsa senge isopropyl doro kana acetone. Funga nezvekuti matinji anonamira sei uye zvakatipoteredza usati watora nzira.
Solvent Kubviswa: Solvents inoshanda zvikuru kune acrylic coatings sezvo inonyungudika nyore. Isa mushonga, rega inyorove, uye wozobvisa coating. Iyi nzira yakanakira mabhodhi munzvimbo dzinotonhora nekuti acrylic coatings inobata tembiricha inoshanduka zvakanaka.
Mechanical Removal: Shandisa scrapers kana maturusi madiki ekutenderera kune madiki makwapa. Chenjerera kuti usakuvadza bhodhi, sezvo acrylic coatings akapfava kupfuura mamwe.
Thermal Removal: Kupisa pfuti kunogona kupfavisa ma acrylic coatings, asi nzira iyi haina kujairika nekuti inonyungudika pakudziya kwakaderera.
muromo: Acrylic coatings inonamira zvakanaka kune flux masara, zvichiita kuti isanyanya kusvuura. Izvi zvinoita kuti zvive zvakanaka kune nzvimbo dzine tembiricha dzinochinja.
Silicone Coatings
Silicone coatings inoshanduka uye inodzivirira mvura uye kuvhunduka. Kuabvisa kunotora kuronga nekuti iwo akaoma uye akasiyana makemikari.
Kemikari kana Solvent Kubviswa: Shandisa chinonyungudutsa chinoenderana nekupoda kwejasi kuzvimba nekubvisa.
Micro-Abrasive Kubviswa: Madiki madiki senge pasoda yekubikira kana aluminium oxide anogona kubvisa zvakachengeteka mabhanhire esilicone pasina kukuvadza bhodhi. Izvi zvakanakira mapuranga akapfava.
Mechanical Removal: Zvishandiso zvakaita sezvibooresa kana zvikuya zvinogona kukwenya masimbi esilicone asi zvinogona kukuvadza nhengo dzinonzwa.
Thermal Removal: Unogona de-solder kuburikidza nekuputira, asi dzora kupisa kuti udzivise kukuvara.
Silicone coatings inoshanda zvakanaka mumamiriro akaoma. Semuyenzaniso, mamwe masimbi esilicone anopona anopfuura mazana mashanu ekupisa kwemafuta pasina kuputika. Izvi zvinovaita vakakwana kune zvakanyanyisa nharaunda.
chitsamba: Micro-abrasive kubviswa kazhinji ndiyo yakachengeteka uye yakanyatsojeka nzira yekugadzirisa zvakare silicone coatings.
Urethane Coatings
Urethane coatings yakasimba uye inodzivisa zvinonyungudutsa, zvichiita kuti zvive zvakaoma kubvisa. Kuoma kwavo kunogona kukonzera peeling, kunyanya nekupisa kunetseka.
Kemikari kana Solvent Kubviswa: Mishonga yakasimba semethyl ethyl ketone (MEK) kana toluene inodiwa. Izvi zvinonyungudutsa coating zvishoma nezvishoma, saka iva nemoyo murefu uye uchenjere.
Mechanical Removal: Shandisa maturusi ekutenderera kana sandpaper yakanaka kunzvimbo diki. Izvi zvinoshanda kune yakaoma machira asi inoda kurongeka kudzivirira kukuvadza bhodhi.
Thermal Removal: Kupisa pfuti kunogona kupfavisa urethane coatings, asi kupisa kwakanyanya kunogona kukuvadza bhodhi.
Micro-Abrasive Kubviswa: Aluminium oxide particles inogona kubvisa urethane coatings zvinobudirira. Iyi nzira yakanakira mapuranga ane zvakadzama magadzirirwo.
muromo: Yakaomeswa urethane coatings inowanzo svuura. Shandisa anochinjika kumapurojekiti anoda kupa kwakawanda.
Dzimwe Coating Types
Paunenge uchishanda na PCB conformal coatings, unogona kuwana mamwe marudzi. Izvi zvinosanganisira epoxy, parylene, uye hybrid blends. Chimwe nechimwe chine maitiro akakosha uye matambudziko. Kuziva maitiro ekuabvisa kunokubatsira kubata chero basa.
Epoxy Coatings
Epoxy coatings yakasimba uye yakasimba. Vanodzivisa makemikari, mvura, uye kukuvara kwemuviri. Asi kuoma kwavo kunoita kuti vaome kubvisa. Kubvisa epoxy kunotora hanya uye kushivirira.
Kubvisa Nzira:
Mechanical Removal: Shandisa maturusi semidziyo inotenderera kana sandpaper. Shandisa zvinyoro nyoro kudzivirira kukuvadza PCB.
Thermal Removal: Kupisa pfuti kunogona kupfavisa epoxy, asi kupisa kwakanyanya kunogona kukuvadza bhodhi.
Kemikari Kubviswa: Zvinyungudutsa zvakasimba semethylene chloride zvinogona kushanda. Bata izvi nokungwarira sezvo zvichigona kuva muchetura.
muromo: Gara uchiyedza nzvimbo diki kutanga kuti uwane yakanakisa nzira yekuputira epoxy yako.
Parylene Coatings
Parylene coatings inoshandiswa seyakaonda, kunyange yakatsetseka. Vanonamatira zvakasimba kuPCB uye vakanaka pakushandisa kwepamusoro-soro. Vanodzivisa mvura uye vane simba rekudzivirira magetsi. Nekudaro, iwo akaoma kubvisa nekuda kwemaitiro avo ekushandisa.
Kubvisa Nzira:
Micro-Abrasive Kubviswa: Iyi ndiyo nzira yakanakisa yekubvisa parylene. Shandisa mabrasives senge aluminium oxide kubvisa zvinyoronyoro kubvisa coating pasina kukuvadza bhodhi.
Kemikari Kubviswa: Special solvents ine fluorinated compounds inogona kunyungudutsa parylene. Izvi zvinodhura uye zvinoda mhepo yakanaka.
Plasma Etching: Iyi nzira yepamberi inoshandisa gasi ionized kuputsa coating. Yakanyatsojeka asi inoda midziyo yakakosha.
chitsamba: Parylene coatings inowanzoshandiswa mune zvekurapa uye aerospace zvishandiso. Kuzvibvisa kungada maturusi ehunyanzvi.
Hybrid Coatings
Hybrid coatings inosanganisa maficha kubva kumhando dzakasiyana, senge silicone uye urethane. Vanovavarira kusanganisa kuchinjika, simba, uye makemikari kuramba. Hunhu hwavo hwakavhenganiswa hunogona kuita kuti kubvisa kunetse.
Kubvisa Nzira:
Kemikari Kubviswa: Shandisa chinonyungudutsa chinoshanda pachinhu chikuru chiri mumusanganiswa. Semuenzaniso, shandisa MEK kune urethane-inorema mahybrids.
Mechanical Removal: Scrapers kana rotary zvishandiso zvinogona kubatsira, asi shanda nekungwarira kuti urege kukuvadza PCB.
Thermal Removal: Kupisa kunogona kupfavisa mamwe mahybrid coatings. Nekudaro, kupisa kusina kuenzana kunogona kusiya zvakasara kumashure.
Coating Type | Best Kubvisa Nzira | matambudziko |
|---|---|---|
Epoxy | Mechanical kana Thermal | Very tough; inogona kukuvadza PCB. |
Parylene | Micro-Abrasive kana Plasma | Inoda midziyo yakakosha. |
spachiana | Kemikari kana Mechanical | Zvakaoma kufanotaura nekuda kwekusanganisa makeup. |
Chiyeuchidzo: Nguva dzose tarisa rudzi rwekupfeka usati watanga. Hybrid coatings inogona kuda kuyedzwa uye kukanganisa kuti uwane yakanakisa nzira yekubvisa.
Mafungiro ekupedzisira pane Mamwe Marudzi Ekupfeka
Mhando imwe neimwe yekuputira ine matambudziko ayo. Nokudzidza maitiro avo uye nzira dzekubvisa, unogona kubata chero chirongwa chePCB nechivimbo. Gara uchitarisa pakuchengetedza uye nekururama kuzvidzivirira uye PCB.
Kudzorera uye Kuchengeta PCB Yakachengeteka Mushure mekubviswa
Matanho ekugadzirisa zvakare PCB
Kana iyo yekuputira yabviswa, mutsva mutsva unodiwa. Tevedza aya matanho akareruka kuti udzorere PCB nemazvo:
Chenesa PCB zvakanaka
Bvisa chero zvakasara zvekupfeka zvakasara. Shandisa isopropyl doro kana muchenesi wakafanana kupukuta bhodhi. Ita shuwa kuti yanyatsooma usati waenderera mberi.Tarisa Pane Kukuvara
Tarisa chero kukuvadza kunokonzerwa panguva yekubvisa. Tarisa kuti pane zvidimbu zvakatyoka here, zvidimbu zvisina kusununguka, kana zvikweshwa. Gadzirisa matambudziko aya usati wawedzera coating itsva.Sarudza Iyo Yakakodzera Coating
Sarudza jasi rinoenderana apo PCB ichashandiswa. Acrylic coatings yakanaka kune yakajairika mamiriro, nepo silicone inoshanda zvirinani munzvimbo dzakaoma.Isa Coating Yakaenzana
Shandisa bhurasho, spray, kana dip kuvhara bhodhi. Iva nechokwadi chokuti kupfeka kunopararira zvakafanana pamusoro pezvikamu zvose. Dzivisa mavara akakora, sezvo anogona kukonzera kudzivirira kusina kuenzana.Rega Coating Dry Dry
Tevedzera mirairo yekuomeswa kwekuputira. Vamwe vanoda kuomeswa nemhepo, nepo vamwe vachida kupisa. Kuomeswa kwakakodzera kunobatsira tsvimbo yekuputira zvakanaka uye kudzivirira zviri nani.
muromo: Shandisa mwenje weUV kuona nzvimbo dzaungave wapotsa.
Kuchengeta PCB Yakachengetedzwa uye Ichishanda Zvakanaka
Kuchengeta PCB yakachengeteka uye ichishanda kwenguva yakareba, tarisa pakuyedza uye kushandisa zvinhu zvakasimba. Edza mazano aya:
Edzai Nguva Dzose
Mhanya bvunzo senge peel simba kana kubhenda bvunzo kuti utarise iyo yekupfeka. Miedzo iyi inobatsira kuwana nzvimbo dzisina simba nekukurumidza.Shandisa Zvinhu Zvisingaperi
Sarudza majasi ekupedzisira. Miedzo senge kushushikana kwekupisa uye kuchembera bvunzo inoratidza kuti iyo coating inobata sei mamiriro akaoma.Tora Zvimwe Zvokuzvidzivirira
Dzivirira PCB kubva kuzvinhu zvakaita semvura neguruva. Shandisa zvivharo kana mamwe akaturikidzana kana PCB iri munzvimbo yakaoma.
Rudzi rweMuyedzo | Zvarinotarisa |
|---|---|
Peel Simba | Ita shuwa kuti iyo yekupfeka inogara yakasimba pasi pekupisa, vibration, uye kushandiswa kwenguva refu. |
Flexural Testing | Yedza kuti mabhodhi anochinjika anomira sei kana akakotama kakawanda. |
Thermal Stress Testing | Inotarisa kugadzikana pasi pekupisa kwakanyanya, kutarisa kune majoini ekutengesa uye majoini. |
High-Tembiricha Kuchembera Muedzo | Inoyera kuti iyo jasi rinogara sei mukupisa kwenguva refu. |
Yakawedzera Hupenyu Kuyedzwa (ALT) | Inofanotaura kukundikana pasi pekunetseka kuvandudza dhizaini uye kusimba. |
Nekutevera nhanho idzi uye matipi, unogona kuve nechokwadi chekuti PCB yekupfeka inogara uye inochengeta bhodhi richishanda nemazvo.
Kusimuka PCB conformal coatings inoda kuronga kwakanaka uye maturusi akakodzera. Iwe unogona kutora makemikari, mechanical, thermal, kana micro-abrasive nzira. Nzira yakarurama inobva pamhando yekuputira. Kuziva maficha ekuputira kunokubatsira kuti uwane mhedzisiro iri nani.
Ramba Wakachengeteka: Gara wakapfeka giya rekuchengetedza uye shanda munzvimbo ine mafambiro emhepo. Chengetedza PCB nekuyedza panzvimbo diki uye kushandisa nzira dzakapfava.
Tarisa kukuvara mushure mekubvisa coating kuti PCB irambe ichishanda. Wedzera jasi idzva rinoenderana nezvinodiwa nebhodhi. Kugara uchiongorora uye kutarisirwa kuchaita kuti bhodhi rako rigare kwenguva refu. Tevera mazano aya kubata chero PCB chirongwa nechivimbo.
FAQ
Ndeipi nzira yakachengeteka yekubvisa PCB coatings?
Kubvisa kemikari kazhinji ndiyo yakachengeteka sarudzo. Shandisa zvinonyungudutsa senge isopropyl doro kune acrylic coatings. Gara uchiyedza solvent panzvimbo diki kutanga. Pfeka magirovhosi, magirazi uye shanda munzvimbo ine mhepo kuti ugare wakachengeteka.
Zvishandiso zvinogona kushandiswazve kune nzira dzakasiyana dzekubvisa?
Hongu, asi chenesa zvishandiso zvakanaka usati wachinja nzira. Semuyenzaniso, mabhurashi anoshandiswa pakubvisa makemikari anofanirwa kunge asina chasara musati mashandiswa. Izvi zvinodzivirira kusvibiswa uye zvinopa migumisiro iri nani.
Ungaziva sei kuti rudzii rwejasi rwuri paPCB?
Shandisa mwenje weUV kutarisa nzvimbo dzinopenya. Acrylic coatings inopenya pasi peUV mwenje. Kuti uwane mabhanhire akaomarara, bvunza mugadziri wePCB kana edza nzvimbo diki dzine zvinonyungudutsa kuti uone kuti dzinoita sei.
Kubvisa micro-abrasive kwakanaka kune ese machira?
Kwete, inoshanda zvakanyanya kune yakaoma machira senge epoxy kana parylene. Usashandise pazvinyoro zvakapfava senge acrylic, sezvo zvinogona kukuvadza PCB pamusoro. Sarudza iyo yakakodzera abrasive zvinhu zvichienderana nerudzi rwekupfeka.
Ko kana PCB ikakuvadzwa panguva yekubviswa?
Tarisa bhodhi pane zvakaputsika zvikamu kana zvikwenya. Gadzirisa zvidimbu zvakakanganisika usati wawedzera coating itsva. Shandisa maturusi emagetsi ekugadzirisa magetsi uye epoxy kune zvimiro zvekugadzirisa. Edza PCB mushure mekugadzirisa kuti uone kuti inoshanda nemazvo.
