PCB tin platingyog ib qho txheej txheem hauv kev lag luam hluav taws xob tsim khoom, uas tuaj yeem txhim kho cov conductivity thiab oxidation tiv thaiv ntawm Circuit Court boards. Txawm li cas los xij, qee zaum, tej zaum yuav muaj teeb meem nrog PCB tin plating tsis zoo, uas tuaj yeem cuam tshuam rau qhov zoo thiab kev ntseeg siab ntawm lub rooj tsav xwm Circuit Court.
Kev soj ntsuam ua rau:
1. PCB deg paug: Thaum lub sij hawm tsim cov txheej txheem PCB, yog tias muaj cov pa phem rau ntawm qhov chaw, xws li roj, oxides, noo noo, thiab lwm yam, nws tuaj yeem ua rau cov tin plating tsis zoo. Cov pa phem no yuav cuam tshuam cov tshuaj tiv thaiv ntawm tin tov thiab substrate, cuam tshuam qhov zoo ntawm tin plating.
2. Kev ntsuas kub tsis tsim nyog: Kev tswj qhov kub thiab txias yog qhov tseem ceeb thaum lub sijhawm txheej txheem PCB tin plating. Yog tias qhov ntsuas kub qis dhau lawm, nws yuav ua rau tsis txaus ntub dej ntawm cov tshuaj tin rau ntawm qhov chaw ntawm lub substrate, uas ua rau cov tin plating tsis zoo. Ntawm qhov tsis sib xws, qhov kub thiab txias ntau dhau tuaj yeem ua rau vitrification thiab evaporation ntawm tin plating tov, uas tuaj yeem ua rau muaj kev phom sij.
3. Cov mis tsis tsim nyog ntawm tin plating tov: Cov mis ntawm tin plating tov yog qhov tseem ceeb rau kev ua tiav cov nyhuv tin plating zoo. Yog tias cov additives hauv cov mis tsis tsim nyog lossis cov concentration tsis tsim nyog, nws tuaj yeem ua rau cov tin plating tsis zoo.
4. Mechanical raug mob: PCBs yuav muaj kev puas tsuaj xws li khawb, hnav, thiab lwm yam thaum lub sij hawm thauj los yog siv. Cov kev raug mob no tuaj yeem ua rau cov txheej txheem tiv thaiv ntawm qhov chaw ntawm lub substrate, uas ua rau cov tin plating tsis zoo.
daws:
1. Ntxuav lub substrate nto: Thaum lub sij hawm tsim PCB txheej txheem, nws yog tsim nyog los ntxuav lub substrate nto kom huv si, tshem tawm cov kab mob xws li roj thiab oxides, xyuas kom meej lub nto yog huv si, thiab coj cov kev ntsuas kom tsis txhob muaj cov pa phem thib ob.
2. Txhim kho qhov kub thiab txias: Teem ib qhov tsim nyog tin plating kub los xyuas kom meej tias cov tshuaj tin tuaj yeem ntub dej ntawm lub substrate thiab txhim kho qhov zoo ntawm tin plating.
3. Kho cov mis ntawm cov tin plating tov: Kho cov mis ntawm cov tin plating tov raws li qhov xav tau tiag tiag, xyuas kom meej tias hom thiab concentration ntawm additives yog tsim nyog, thiab tus nqi pH thiab lwm yam tsis zoo ntawm tin plating tov yog tswj kom raug. , yog li txhim kho qhov zoo ntawm tin plating.
4. Txhim khu kev tiv thaiv: Txhim kho kev tiv thaiv ntawm PCB boards thaum lub sij hawm thauj mus los thiab siv, tsis txhob muaj kev puas tsuaj rau lub substrate nto, thiab yog li txo qhov tshwm sim ntawm cov tin plating tsis zoo.