Ua rau ntawm qhov chaw blistering hauv Circuit Court board ntau lawm

Kev ua npuas dej ntawm lub rooj tsavxwm yog ib qho ntawm qhov ua tsis tau zoo hauv cov txheej txheem ntawm PCB ntau lawm. Vim tias qhov nyuaj ntawm PCB cov txheej txheem tsim khoom thiab txheej txheem kev saib xyuas, tshwj xeeb tshaj yog nyob rau hauv kev kho cov tshuaj ntub dej, nws nyuaj rau tiv thaiv cov laug cam ua npuas dej tsis xws luag. Raws li ntau xyoo ntawm kev paub ntau lawm kev tsim khoom thiab kev paub dhau los, kev sau tam sim no piav qhia luv luv ntawm qhov ua rau blistering ntawm cov nplaim tooj liab plated Circuit Court board, vam tias yuav pab tau rau cov phooj ywg hauv kev lag luam!

Qhov teeb meem ntawm blistering ntawm lub rooj tsav xwm ntawm lub rooj tsav xwm hauv Circuit Court yog qhov teeb meem ntawm kev ua tsis tau zoo ntawm lub rooj tsavxwm, thiab tom qab ntawd nws yog qhov teeb meem ntawm qhov ua tau zoo ntawm lub rooj tsavxwm, uas suav nrog ob yam:

1. Lub rooj tsav xwm huv si;

2. Surface micro roughness (lossis lub zog saum npoo); Txhua lub rooj teeb meem teeb meem ntawm lub ntsej muag ntawm cov laug cam tuaj yeem suav ua qhov laj thawj saum toj no. Cov nplaum ntawm cov txheej tsis zoo lossis qis dhau. Nws nyuaj rau tawm tsam txheej txheej txheej, kev nyuab siab ntawm lub tshuab thiab cov cua sov uas tau tsim hauv kev tsim khoom thiab ua cov txheej txheem hauv kev tsim khoom tom ntej thiab ua cov txheej txheem thiab txheej txheem sib dhos, ua rau sib cais ntawm cov txheej kom sib txawv.

Qee yam uas yuav ua rau cov phaj tsis zoo hauv lub sijhawm tsim khoom thiab ua tiav tau suav nrog raws li hauv qab no:

1. Teeb meem ntawm txheej txheem txheej txheem kho; Tshwj xeeb tshaj yog rau qee qhov txheej txheem tuab (feem ntau tsawg dua 0.8 hli), vim qhov tsis zoo ntawm lub substrate, nws tsis tsim nyog txhuam cov phaj nrog lub tshuab txhuam, uas tej zaum yuav tsis tshem tawm cov txheej txheem tiv thaiv tshwj xeeb los tiv thaiv oxidation ntawm tooj liab ntawv ci ntawm phaj saum npoo thaum tsim khoom thiab ua tiav ntawm txheej txheej. Txawm hais tias txheej yog nyias nyias thiab txhuam cov phaj tau yooj yim tshem tawm, nws nyuaj rau txais kev kho tshuaj, Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum tau saib xyuas kev tswj hwm hauv kev tsim khoom thiab ua, txhawm rau zam qhov teeb meem ua npuas los ntawm kev ua tsis zoo ntawm substrate tooj liab ntawv ci thiab tooj liab tshuaj; Thaum ua kom cov txheej sab hauv nyias nyias, tseem yuav muaj qee qhov teeb meem, xws li ua tsis tau xim dub thiab xim av, xim tsis sib xws, thiab cov xim dub hauv zos tsis zoo.

2. Roj stain lossis lwm yam kua paug, plua plav paug thiab kho tsis zoo los ntawm phaj nto tshuab (drilling, lamination, ntug milling, thiab lwm yam).

3. Cov tooj liab tsis zoo tso rau txhuam cov phaj: lub siab ntawm kev sib tsoo phaj ua ntej tso cov tooj liab siab dhau, ua rau lub deformation ntawm lub orifice, txhuam tawm cov tooj liab cov ntawv ci ntawm lub orifice thiab txawm tias xau cov khoom hauv paus ntawm lub orifice, uas yuav ua rau qhov ua npuas dej ntawm qhov orifice hauv cov txheej txheem ntawm kev tso tooj liab, electroplating, tin txau thiab vuam; Txawm hais tias txhuam phaj tsis xau cov substrate, cov phaj txhuam hnyav yuav ua rau qhov ntxhib ntawm tooj liab ntawm qhov chaw. Yog li ntawd, nyob rau hauv tus txheej txheem ntawm micro etching coarsening, cov ntawv ci tooj liab ntawm qhov chaw no yooj yim heev rau coarsen ntau dhau, thiab yuav muaj qee qhov zoo zais kev phom sij; Yog li ntawd, yuav tsum tau them nyiaj mloog txhawm rau txhim kho kev tswj cov txheej txheem txhuam txhuam. Cov txheej txheem txheej txheej txhuam tuaj yeem hloov kho kom zoo tshaj plaws los ntawm kev hnav lub cim ntsuas thiab ntsuas zaj duab xis dej.

4. Dej ntxuav teeb meem: vim tias cov tooj liab tso rau hauv kev kho hluav taws xob xav tau kev kho tshuaj ntau, muaj ntau hom kua qaub-puag, cov organic tsis-ncov qaumteb thiab lwm yam tshuaj ua kuab tshuaj, thiab phaj phaj tsis tau ntxuav kom huv. Tshwj xeeb, kev hloov pauv ntawm tus neeg sawv cev degreasing rau kev tso tooj liab yuav tsis tsuas yog ua rau muaj kuab paug hla mus, tab sis kuj ua rau kev kho mob tsis zoo hauv zej zog lossis kho tsis zoo thiab ua tsis tau zoo ntawm cov phaj saum npoo, ua rau muaj teeb meem hauv kev nplaum; Yog li ntawd, yuav tsum tau them nyiaj rau txhawm rau txhim kho kev tswj cov dej ntxuav, feem ntau suav nrog kev tswj hwm kev ntxuav cov dej ntws, dej zoo, lub sijhawm ntxuav dej, phaj poob lub sijhawm thiab lwm yam; Tshwj xeeb tshaj yog nyob rau lub caij ntuj no, thaum qhov ntsuas kub qis, qhov kev ntxhua khaub ncaws yuav raug txo kom tsawg. Ua tib zoo saib xyuas yuav tsum tau them rau kev tswj hwm kev ntxhua khaub ncaws.

5. Micro corrosion hauv tooj liab tso ua ntej kho thiab qauv electroplating pretreatment; Kev tshem tawm cov micro ntau dhau yuav ua rau lub hauv paus tawg ntawm qhov orifice thiab ua rau lub qhov txhab nyob ib puag ncig; Kev tsis txaus micro etching tseem yuav ua rau kev sib zog ua kom tsis muaj zog txaus txaus thiab ua rau muaj npuas; Yog li ntawd, kev tswj ntawm micro etching yuav tsum tau ua kom muaj zog; Feem ntau, qhov micro etching qhov tob ntawm tooj liab tso ua ntej kho yog 1.5-2 microns, thiab micro etching qhov tob ntawm tus qauv electroplating pretreatment yog 0.3-1 microns. Yog ua tau, nws yog qhov zoo tshaj los tswj cov tuab tuab etching los yog etching tus nqi los ntawm kev tshuaj lom tshuaj thiab kuaj yooj yim ntsuas txoj hauv kev; Feem ntau, cov xim ntawm cov phaj me ntsis pleev xim rau saum npoo yog ci, zoo ib yam xim liab, tsis muaj qhov xav txog; Yog tias cov xim tsis sib xws lossis rov ua dua, nws qhia tau tias muaj peev xwm ua rau muaj kev phom sij zoo hauv kev ua ntej ua cov txheej txheem tsim khoom; Ua tib zoo saib xyuas kev tshuaj xyuas; Ib qho ntxiv, cov ntsiab lus tooj liab, qhov kub ntawm lub dab da dej, thauj khoom thiab cov ntsiab lus me me ntawm lub tank micro etch yuav tsum tau ua tib zoo mloog.

6. Kev ua haujlwm ntawm tooj liab nag los daws tau muaj zog heev; Cov ntsiab lus ntawm peb qhov tseem ceeb hauv kev qhib lub tog raj kheej tshiab lossis cov kua dej ntawm tooj liab los nag daws tau siab dhau, tshwj xeeb tshaj yog cov ntsiab lus tooj liab siab dhau, uas yuav ua rau muaj qhov tsis xws luag ntawm kev ua haujlwm muaj zog ntawm lub tank ua kua, ntxhib tshuaj tooj liab tso, ntau ntxiv ntawm hydrogen, cuprous oxide thiab lwm yam hauv txheej txheej tooj liab, ua rau kev poob qis ntawm cov khoom vaj khoom tsev zoo thiab ua tsis tau zoo ntawm txheej; Cov txheej txheem hauv qab no tuaj yeem siv tau kom raug: txo cov ntsiab lus tooj liab, (ntxiv cov dej ntshiab rau hauv cov kua ua kua) suav nrog peb yam, tsim nyog ua kom cov ntsiab lus ntawm cov neeg ua haujlwm nyuaj thiab ua kom ruaj khov, thiab tsim nyog txo qhov kub ntawm cov kua ua kua.

7. Oxidation ntawm phaj nto thaum tsim khoom; Yog tias cov phaj tooj liab poob rau hauv huab cua, nws yuav tsis tsuas yog ua rau tsis muaj tooj liab hauv lub qhov thiab cov nplaim phaj nto, tab sis kuj ua rau blistering ntawm phaj phaj; Yog tias cov phaj tooj liab tau khaws cia hauv cov kua qaub tau ntev, cov phaj saum npoo kuj tseem yuav raug oxidized, thiab zaj duab xis oxide no nyuaj rau tshem tawm; Yog li ntawd, hauv cov txheej txheem tsim khoom, cov phaj tooj liab yuav tsum tau tuab nyob rau lub sijhawm. Nws yuav tsum tsis txhob khaws ntev ntev. Feem ntau, cov tooj liab yuav tsum ua kom tuab li ntawm 12 teev nyob rau qhov kawg.

8. Kev ua haujlwm tsis zoo ntawm cov tso nyiaj tooj liab; Qee cov phaj rov ua dua tom qab tso cov tooj liab lossis hloov pauv yuav ua rau blistering ntawm cov phaj saum npoo vim tsis zoo plating plating, ua tsis raug txheej txheem rov ua dua, kev tswj tsis raug ntawm lub sijhawm me me hauv cov txheej txheem rov ua dua lossis lwm yam; Kev rov ua haujlwm ntawm cov tooj liab ua kom poob qis yog pom tooj liab tsis pom kev ntawm kab, nws tuaj yeem raug tshem tawm ncaj qha los ntawm kab tom qab ntxuav dej, thiab tom qab ntawd rov ua haujlwm ncaj qha yam tsis muaj xeb tom qab khaws; Nws yog qhov zoo tshaj plaws kom tsis txhob tshem cov roj ntxiv thiab erode me ntsis; Rau cov phaj uas tau siv hluav taws xob ua kom tuab, qhov micro etching zawj yuav tsum ploj tam sim no. Ua tib zoo saib xyuas lub sijhawm. Koj tuaj yeem kwv yees kwv yees lub sijhawm fading nrog ib lossis ob daim phiaj kom ntseeg tau tias cov txiaj ntsig ploj mus; Tom qab cov plating raug tshem tawm, ib pawg ntawm cov txhuam mos txhuam tom qab lub tshuab txhuam yuav tsum tau siv rau kev txhuam txhuam, thiab tom qab ntawd cov tooj liab yuav tsum tau muab tso raws li cov txheej txheem tsim khoom ib txwm muaj, tab sis cov etching thiab micro etching lub sij hawm yuav tsum tau txiav los yog kho raws li tsim nyog

9. Kev ntxuav dej tsis txaus tom qab kev txhim kho, lub sijhawm khaws ntev dhau los tom qab kev txhim kho lossis muaj plua av ntau dhau hauv qhov kev cob qhia hauv cov txheej txheem ntawm cov duab hloov pauv yuav ua rau lub rooj tsav xwm tsis huv thiab tsis zoo siv fiber ntau kho, uas yuav ua rau muaj teeb meem zoo.

10. Ua ntej tooj liab plating, lub tank khaws cia yuav tsum hloov pauv raws sijhawm. Muaj kuab paug ntau dhau hauv cov kua ua kua lossis cov ntsiab lus tooj liab siab dhau yuav tsis tsuas yog ua rau muaj teeb meem ntawm cov phaj huv huv, tab sis kuj ua rau muaj qhov tsis xws xws li phaj nto ntxhib.

11. Cov pa phem hauv lub cev, tshwj xeeb yog cov pa phem tshwm sim hauv lub tank hluav taws xob, uas yog qhov tshwm sim ntau dua rau cov kab tsis siv neeg.

12. Tsis tas li ntawd, thaum lub caij ntuj no, thaum da dej daws teeb meem hauv qee lub tsev tsim khoom tsis kub, tshwj xeeb yuav tsum tau them nyiaj tshwj xeeb rau kev them nyiaj ntawm cov phaj rau hauv chav da dej hauv cov txheej txheem tsim khoom, tshwj xeeb tshaj yog cov plating da dej nrog cua sib xyaw, xws li tooj liab thiab npib tsib xee; Rau lub npib tsib xee npib tsib xee, nws yog qhov zoo tshaj rau ntxiv cov dej sov ntxuav lub tank ua ntej npib tsib xee pluaj thaum lub caij ntuj no (dej kub yog li 30-40 ℃) kom ntseeg tau qhov kev cog lus me me thiab kev pib ua tau zoo ntawm txheej txheej npib tsib xee.

Hauv cov txheej txheem tsim khoom, muaj ntau qhov laj thawj rau blistering ntawm lub rooj tsavxwm. Tus neeg sau ntawv tsuas tuaj yeem tshuaj xyuas luv luv. Txog qib txuj ci ntawm cov cuab yeej ntawm cov tuam txhab sib txawv, tej zaum yuav muaj blistering tshwm sim los ntawm qhov laj thawj sib txawv. Qhov xwm txheej tshwj xeeb yuav tsum tau tshuaj xyuas kom ntxaws, uas tsis tuaj yeem ua dav dav thiab theej cov tshuab; Qhov laj thawj saum toj no txheeb xyuas, tsis hais txog qhov tseem ceeb thiab theem ob, ua rau kev tshuaj xyuas luv luv raws li txheej txheem tsim khoom. Cov koob no tsuas yog qhia koj txog kev daws teeb meem thiab pom kev dav dua. Kuv vam tias nws tuaj yeem ua lub luag haujlwm pov pob zeb thiab nyiam jade rau koj cov txheej txheem tsim khoom thiab daws teeb meem!