Ukuthi ikhwalithi ye PCB uyinki muhle kakhulu, ngokomthetho, akunakwenzeka ukuhlukana nenhlanganisela yezingxenye ezinkulu ezingenhla. Izinga elihle kakhulu likayinki liwukubonakaliswa okuphelele kwesayensi, intuthuko kanye nokuvikelwa kwemvelo kwefomula. Kubonakala ku:

I-Viscosity isifinyezo se-viscosity eguquguqukayo. Ngokuvamile kuvezwa yi-viscosity, okungukuthi, ukucindezelwa kwe-shear kokugeleza koketshezi okuhlukaniswa yi-velocity gradient ekuqondeni kwesendlalelo sokugeleza, iyunithi yamazwe ngamazwe yi-Pa/sec (Pa.S) noma i-milliPascal/sec (mPa.S). Ekukhiqizeni kwe-PCB, kubhekiselwa ku-fluidity kayinki okhiqizwa amandla angaphandle.

Ubudlelwano bokuguqulwa kweyunithi ye-viscosity:

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

I-Plasticity isho ukuthi ngemuva kokuthi uyinki ukhubazeke ngamandla angaphandle, usagcina izakhiwo zawo ngaphambi kokuguqulwa. I-plasticity ye-inki iyasiza ekuthuthukiseni ukunemba kokuphrinta;

Inki ye-thixotropic (thixotropic) i-gelatinous lapho imile, futhi i-viscosity iyashintsha lapho ithintwa. Kubizwa nangokuthi i-thixotropic ne-anti-sagging;

I-Fluidity (izinga) Izinga i-inki esakazeka ngalo nxazonke ngaphansi kwesenzo samandla angaphandle. I-Fluidity iwukuphindaphinda kwe-viscosity, futhi uketshezi luhlobene nepulasitiki kanye ne-thixotropy kayinki. I-plasticity ne-thixotropy inkulu, i-fluidity inkulu; i-fluidity inkulu, ukuphrinta kulula ukwandisa. I-liquidity encane, kulula ukubonakala inetha, okuholela esimweni sokwakheka kwe-inki, eyaziwa nangokuthi inetha;

I-Viscoelasticity isho ikhono likayinki eligundiwe futhi liphulwe ngemva kokuba uyinki esulwe yi-squeegee ukuphinde ubophe ngokushesha. Kudingeka ukuthi isivinini sokushintshwa kwe-inki sisheshe futhi uyinki uphinde ubuyele ngokushesha ukuze ube nenzuzo ekuphrinteni;

Ukoma kudinga ukuthi uyinki wome esikrinini kancane ngangokunokwenzeka, futhi kuthenjwa ukuthi ngemva kokuba uyinki udluliselwe ku-substrate, ngokushesha kuba ngcono;

Usayizi we-fineness pigment kanye nezinhlayiya zezinto eziqinile, uyinki we-PCB ngokuvamile ungaphansi kuka-10μm, futhi usayizi we-fineness kufanele ube ngaphansi kwengxenye eyodwa kwezintathu yokuvuleka kwezikhala;

Lapho ifosholo likayinki lisetshenziselwa ukucosha uyinki, izinga u-inki onofilamentous angaphuki ngalo lapho weluliwe libizwa ngokuthi i-stringiness. Umcu we-inki mude, futhi kunemicu eminingi endaweni eyinki nasendaweni yokunyathelisa, eyenza i-substrate nepuleti lokunyathelisa lingcolile futhi lingakwazi ngisho nokuphrinta;

Ukungafihli namandla okufihla uyinki

Oyinki be-PCB, ngokuya ngokusetshenziswa okuhlukene kanye nezidingo, izidingo ezehlukene nazo zibekwe phambili ukuze kube sobala kanye namandla okufihla ayinki. Ngokuvamile, oyinki besekethe, oyinki abaqhubayo kanye noyinki bezinhlamvu konke kudinga amandla aphezulu okufihla. Ukumelana ne-solder kuyavumelana nezimo.

Ukumelana namakhemikhali kayinki

Oyinki be-PCB banezindinganiso eziqinile ze-asidi, i-alkali, usawoti nezinyibilikisi ngokwenjongo yokusetshenziswa;

Ukumelana ngokomzimba kukayinki

Uyinki we-PCB kufanele uhlangabezane nokumelana nokuklwebheka kwangaphandle, ukumelana nokushaqeka okushisayo, ukumelana nomshini wekhasi, futhi uhlangabezane nezidingo ezihlukahlukene eziqinile zokusebenza kukagesi;

Ukuphepha nokuvikelwa kwemvelo kukayinki

Oyinki be-PCB badingeka ukuthi babe nobuthi obuphansi, bangabi nephunga, baphephe futhi bangabi nemvelo.

Ngenhla sifingqe izakhiwo eziyisisekelo zoyinki be-PCB abayishumi nambili. Phakathi kwabo, ekusebenzeni kwangempela kokunyathelisa kwesikrini, inkinga ye-viscosity ihlobene eduze no-opharetha. I-viscosity ibaluleke kakhulu ekusheleleni kwesikrini sikasilika. Ngakho-ke, kumadokhumenti kayinki we-PCB nemibiko ye-QC, i-viscosity imakwe ngokucacile, ikhombisa ngaphansi kwaziphi izimo nokuthi hlobo luni lwethuluzi lokuhlola i-viscosity okufanele lusetshenziswe.

Enqubweni yokuphrinta yangempela, uma i-viscosity ye-inki iphezulu kakhulu, kuzoba nzima ukuyiphrinta, futhi imiphetho yezithombe izoba lukhuni kakhulu. Ukuze kuthuthukiswe umphumela wokunyathelisa, kuzongezwa umncane ukuze enze i-viscosity ihlangabezane nezidingo. Kodwa akunzima ukuthola ukuthi ezimweni eziningi, ukuze uthole isinqumo esifanele (isinqumo), kungakhathaliseki ukuthi iyiphi i-viscosity oyisebenzisayo, kusenzima ukufeza. ngani? Ngemva kokucwaninga okujulile, kwatholakala ukuthi i-viscosity ye-inki iyisici esibalulekile, kodwa hhayi kuphela. Kukhona enye into ebaluleke kakhulu-thixotropy. Kuphinde kuthinte ukunemba kokuphrinta.