Makhalidwe ndi gulu la inki za PCB

Inki ya PCB imatanthauza inki yomwe imagwiritsidwa ntchito mu PCB. Tsopano tiyeni tigawane nanu makhalidwe ndi mitundu ya inki ya PCB?

1. Makhalidwe a inki ya PCB

1-1. Viscosity ndi thixotropy
Popanga matabwa osindikizidwa, kusindikiza chophimba ndi chimodzi mwazinthu zofunika komanso zofunika kwambiri. Kuti mupeze kukhulupirika kwa kubereka kwa fano, inkiyo iyenera kukhala ndi kukhuthala kwabwino komanso thixotropy yoyenera.
1-2. Ubwino
Ma pigment ndi mineral fillers a PCB inki nthawi zambiri amakhala olimba. Pambuyo chabwino akupera awo tinthu kukula si upambana 4/5 microns, ndi kupanga homogenized otaya boma olimba mawonekedwe.

2, Mitundu ya inki za PCB

Inki za PCB zimagawidwa m’magulu atatu: dera, chigoba cha solder ndi inki za silkscreen.

2-1. Inki yozungulira imagwiritsidwa ntchito ngati chotchinga choletsa dzimbiri la dera. Amateteza mzere pa etching. Nthawi zambiri imakhala ndi photosensitive yamadzimadzi; Pali mitundu iwiri: kukana dzimbiri asidi ndi kukana dzimbiri zamchere.
2- 2. Inki yotsutsa ya Solder imajambulidwa pa dera pambuyo poti dera latha ngati mzere woteteza. Pali zamadzimadzi photosensitive, kutentha kuchiritsa ndi UV kuumitsa mitundu. Chomangira cholumikizira chimasungidwa pa bolodi kuti chithandizire kuwotcherera kwa zigawo ndikuchita gawo la kutchinjiriza ndi kupewa oxidation.
2-3. Inki ya silika imagwiritsidwa ntchito polemba pamwamba pa bolodi, monga chizindikiro cha zigawo, zomwe nthawi zambiri zimakhala zoyera.

Komanso, pali inki zina, monga strippable zomatira inki, siliva phala inki, etc.