Cov yam ntxwv thiab kev faib tawm ntawm PCB inks

PCB number case yog hais txog tus cwj mem siv hauv PCB. Tam sim no cia peb qhia koj cov yam ntxwv thiab hom PCB number case?

1, Cov yam ntxwv ntawm PCB number case

1-1. Viscosity thiab thixotropy
Hauv kev tsim cov txheej txheem ntawm cov ntawv luam tawm Circuit Board, kev tshuaj ntsuam luam ntawv yog ib qho tseem ceeb thiab cov txheej txheem tseem ceeb. Yuav kom tau txais kev ncaj ncees ntawm cov duab luam tawm, tus number case yuav tsum muaj viscosity zoo thiab haum thixotropy.
1-2. Kev zoo
Cov pigments thiab mineral fillers ntawm PCB inks feem ntau yog khoom. Tom qab kev sib tsoo zoo, lawv qhov loj me tsis pub dhau 4/5 microns, thiab tsim kom muaj homogenized txaus hauv cov khoom.

2, Hom PCB inks

PCB inks feem ntau muab faib ua peb pawg: circuit, solder mask thiab silkscreen inks.

2-1. Cov cwj mem hluav taws xob siv hluav taws xob yog siv los tiv thaiv corrosion ntawm Circuit Court. Nws tiv thaiv kab thaum etching. Nws yog feem ntau ua kua photosensitive; Muaj ob hom: acid corrosion kuj thiab alkali corrosion kuj.
2- 2. Solder resist number case yog pleev xim rau ntawm lub voj voog tom qab lub voj voog ua tiav raws li kev tiv thaiv kab. Muaj cov kua photosensitive, kub curing thiab UV hardening hom. Cov ntaub ntawv sib txuas yog tshwj tseg rau ntawm lub rooj tsavxwm kom yooj yim vuam ntawm cov khoom siv thiab ua lub luag haujlwm ntawm kev rwb thaiv tsev thiab tiv thaiv oxidation.
2-3. Silkscreen number case yog siv los kos rau saum npoo ntawm lub rooj tsavxwm, xws li lub cim ntawm cov khoom, uas feem ntau yog dawb.

Tsis tas li ntawd, muaj lwm yam inks, xws li strippable adhesive number case, silver paste number case, thiab lwm yam.