Kana kunaka kwe PCB inki yakanakisa, mumusimboti, hazvibviri kubva pakusanganiswa kwezvikamu zvikuru zviri pamusoro. Hunhu hwakanakisa hweinki kuratidzwa kwakazara kwesainzi, kufambira mberi uye kuchengetedza kwezvakatipoteredza kweformula. Inoratidzwa mu:

Viscosity ndiyo chidimbu che dynamic viscosity. Kazhinji inoratidzwa ne viscosity, ndiko kuti, shear stress yekuyerera kwemvura yakakamurwa nevelocity gradient munzira yekuyerera layer, iyo international unit iPa/sec (Pa.S) kana milliPascal/sec (mPa.S). Mukugadzirwa kwePCB, inoreva kuyerera kweinki inogadzirwa nemasimba ekunze.

Shanduko hukama hwe viscosity unit:

1Pa. S=10P=1000mPa. S=1000CP=10dpa.s

Plasticity inoreva kuti mushure mekunge ingi yakanganiswa nekunze kwesimba, ichiri kuchengetedza maitiro ayo asati aita deformation. Iyo yepurasitiki yeinki inobatsira pakuvandudza kurongeka kwekudhinda;

Iyo thixotropic (thixotropic) inki ndeyegelatinous kana yakamira, uye viscosity inoshanduka kana ikabatwa. Inonziwo thixotropic uye anti-sagging;

Fluidity (leveling) Kuwanda kwekuti ingi inopararira pasi pekuita kwesimba rekunze. Fluidity ndiyo inodzokororwa ye viscosity, uye fluidity inoenderana nepurasitiki uye thixotropy yeinki. Iyo plastiki uye thixotropy yakakura, iyo fluidity yakakura; iyo fluidity yakakura, iyo imprint iri nyore kuwedzera. Diki liquidity, nyore kuoneka mambure, zvichikonzera chiitiko chekugadzira inki, inozivikanwawo semambure;

Viscoelasticity (Viscoelasticity) zvinoreva kugona kweinki inogerwa nekutyoka mushure mekunge ingi yakweshwa neanosvina kuti idzoke nekukurumidza. Zvinodiwa kuti inki deformation kumhanya nokukurumidza uye ingi rebounds nokukurumidza kuti kubatsira kudhinda;

Kuoma kunoda kuti inki iome pahwindo zvishoma nezvishoma sezvinobvira, uye zvinotarisirwa kuti mushure mokunge ingi yaendeswa kune substrate, iyo inokurumidza kukurumidza;

Saizi yefineness pigment uye yakasimba zvinhu zvimedu, PCB inki kazhinji isingasviki 10μm, uye saizi yehunyoro hunofanira kunge iri pasi pechikamu chimwe chete muzvitatu chekuvhura mesh;

Kana foshoro yeinki ichishandiswa kunhonga ingi, mwero wekuti ingi ine filamentous haityoke kana yakatambanudzwa inonzi tambo. Iyo inki filament yakareba, uye kune mafilaments akawanda pamusoro peinki uye nzvimbo yekudhinda, iyo inoita kuti substrate uye ndiro yekudhinda zvisvibe uye zvisingakwanisi kudhinda;

Kujeka uye kuviga simba reinki

Nokuti PCB ingi, maererano kushandiswa kwakasiyana uye zvinodiwa, siyana zvinodiwa vanoiswawo mberi kuti pachena uye kuvanza simba ingi. Kazhinji kutaura, ingi dzedunhu, conductive ingi uye hunhu ingi zvese zvinoda simba rekuhwanda rakakwirira. The solder resist is more flexible.

Kemikari kuramba kweinki

PCB inki dzine miitiro yakasimba yeasidhi, alkali, munyu uye zvinonyungudutsa maererano nechinangwa chekushandisa;

Kurwisa kwepanyama kweinki

PCB inki inofanira kusangana nekunze kwekuramba, kupisa kwekutya kwekudzivirira, mechanical peel resistance, uye kusangana nezvinodiwa zvakasiyana-siyana zvekushanda kwemagetsi;

Kuchengetedza uye kuchengetedzwa kwezvakatipoteredza kweinki

PCB maingi anodiwa kuve akaderera-chepfu, asinganhuhwi, akachengeteka uye ane hushamwari.

Pamusoro takapfupikisa zvimiro zvemainki gumi nemaviri ePCB. Pakati pavo, mukushanda kwechokwadi kwekudhinda kwekrini, dambudziko re viscosity rine hukama hwepedyo nemushandi. Iyo viscosity yakakosha kune kutsetseka kwesiriki skrini. Naizvozvo, muPCB ingi magwaro ehunyanzvi uye mishumo yeQC, iyo viscosity yakanyorwa zvakajeka, zvichiratidza pasi pemamiriro ezvinhu uye ndeupi rudzi rwechiridzwa chekuongorora viscosity yekushandisa.

Muchiito chekudhinda, kana viscosity yeinki yakanyanyisa, zvichange zvakaoma kudhinda kunze, uye micheto yemifananidzo ichave yakanyanyisa. Kuti uvandudze maitiro ekudhinda, mutete achawedzerwa kuita kuti viscosity isangane nezvinodiwa. Asi hazvina kuoma kuwana kuti muzviitiko zvakawanda, kuti uwane iyo yakanaka resolution (resolution), zvisinei kuti unoshandisa viscosity ipi, hazvigoneke kuita. sei? Mushure mekutsvakurudza kwakadzama, zvakaonekwa kuti inki viscosity chinhu chinokosha, asi kwete chete. Pane chimwe chinhu chakakosha-thixotropy. Kuri kukanganisawo kururama kwekudhinda.