Tshem tawm cov teeb meem cuam tshuam ntawm cov av av ntawm txheej los ntawm Electroplating Hluav taws xob cua sov Tubes

Tshem tawm cov teeb meem cuam tshuam ntawm cov av av ntawm txheej los ntawm Electroplating Hluav taws xob cua sov Tubes

Cov av ntawm qhov chaw ua haujlwm yog tsim los ntawm ntau yam khoom sib txawv, nrog rau cov av, plua plav, roj, roj, xeb, oxide daim tawv nqaij, thiab qee zaum dej vapor. Yog tias cov pa phem no tau npog los ntawm cov txheej txheem, cov khoom siv thiab tshuaj adhesion ntawm cov txheej yuav raug cuam tshuam, thiab txheej yuav ua tsis tiav.

Ntawm qhov tsis sib xws, yog tias cov stains raug tshem tawm ua ntej pleev xim, ua kom tiav thiab zoo sib txuas nrog cov hlau tuaj yeem tsim rau ntawm qhov chaw ntawm lub workpiece, thiab cov adhesion ntawm txheej yuav zoo guaranteed. Ib txheej txheej nrog adhesion zoo ua raws li kev tiv thaiv zoo los tiv thaiv dej vapor los ntawm kev sib cuag nrog hlau. Nws yuav tsum tau muab sau tseg tias dej vapor yog ib qho electrolyte thaum lub sij hawm corrosion ntawm steel.

1.3 Cov tshuaj phem uas tsis tuaj yeem pom ntawm qhov muag liab qab

Kuj tseem muaj qee yam tshuaj phem uas peb tsis tuaj yeem pom ntawm qhov muag liab qab. Cov tshuaj phem tshaj plaws yog soluble ntsev xws li chlorides thiab sulfides. Yog tias cov khoom tsis zoo no tsis raug tshem tawm tag nrho, lawv yuav ua rau cov dej vapor nkag mus rau hauv cov txheej txheem, mus txog hauv qab ntawm txheej txheej, ua npuas dej, cais cov txheej txheej los ntawm cov substrate, thiab ua kom cov hlau tsis huv. Thaum kho qhov chaw ntawm corroded steel qauv ua ntej painting yog nqa tawm, qhov chaw uas qhia corrosion pits tom qab tua blasting tu (tshwj xeeb tshaj yog nyob rau hauv lub hauv qab ntawm lub corrosion pits) yuav muaj soluble ntsev. Kev txhaj tshuaj qhuav blasting tu tsis tuaj yeem tshem cov ntsev no kom tiav. Yog li ntawd, nws yog qhov zoo tshaj plaws los siv cov cuab yeej tshwj xeeb rau ntawm qhov chaw kuaj xyuas lub xub ntiag thiab cov ntsiab lus ntawm cov ntsev soluble ntawm qhov chaw ua haujlwm ua ntej pleev xim. Yog hais tias qhov concentration ntawm soluble ntsev ntau tshaj qhov tso cai, ntsuas yuav tsum tau muab tshem tawm tag nrho. Daim duab 1 qhia Elcometer qhov tshwj xeeb thaj thiab koob txhaj tshuaj kom pom cov ntsev seem seem.

Lub periphery ntawm thaj yog coated nrog cov khoom nplaum. Thaum siv, thaj ua rau thaj yog muab tso rau saum npoo ntawm qhov chaw ua haujlwm yuav tsum tau kuaj, nrog rau qhov sib txawv ntawm qhov nruab nrab thiab qhov chaw yuav tsum tau kuaj. Tom qab ntawd siv rab koob txhaj tshuaj los txhaj ib qho dej distilled (qhov hnyav) rau hauv qhov sib txawv thiab rov ua dua / txhaj tshuaj ntau zaus, kom tag nrho cov ntsev ntawm qhov chaw nyob ib puag ncig los ntawm thaj chaw yog yaj hauv dej distilled. Thaum kawg, siv lub koob txhaj tshuaj txhawm rau nqus tawm tag nrho cov tshuaj, thiab siv lub ntsuas hluav taws xob los ntsuas cov ntsev concentration ntawm cov tshuaj, yog li tau txais cov concentration ntawm cov ntsev soluble hauv ib chav tsev ntawm qhov chaw kuaj.

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