Cov ntsiab lus tseem ceeb ntawm Electropolishing txheej txheem rau 316 Stainless Steel Cua sov Tubes thiab Anti-Corrosion Promotion Effect

Electropolishing yog ib qho tseem ceeb ntawm cov txheej txheem ua tiav tshwj xeeb rau 316 stainless hlau cua sov raj, uas txawv heev los ntawm cov tshuab polishing. Los ntawm anodic electrochemical dissolution, thev naus laus zis no tshem tawm cov micro-protrusions, residual burrs thiab deformed hlau txheej ntawm lub raj nto, tsim ib tug du, ntom thiab chromium-enriched passive zaj duab xis. Nws txhawb nqa kev tiv thaiv- muaj peev xwm corrosion, tiv thaiv- ntsuas qhov ua tau zoo thiab qib kev huv, thiab tau dhau los ua cov txheej txheem kho dua tshiab rau siab - kawg 316 cua sov raj siv hauv cov khoom noj, tshuaj thiab dej ntshiab.

Lub hauv paus ntsiab lus tseem ceeb ntawm electropolishing yog tso lub cua sov raj li lub anode thiab stainless hlau phaj raws li cov cathode nyob rau hauv tshwj xeeb tov kua qaub electrolyte. Thaum siv ncaj qha tam sim no, qhov nce ntawm cov hlau saum npoo yaj zoo dua nyob rau hauv cov txiaj ntsig ntawm hluav taws xob, thaum cov chaw so yog tiv thaiv los ntawm cov kua nplaum nplaum uas tsis tshua muaj tam sim no. Maj mam, tag nrho saum npoo zoo li tiaj tus thiab daim iav - kaj. Thaum lub sij hawm cov tshuaj tiv thaiv, cov ntsiab lus hlau yaj yooj yim dua chromium, yog li chromium yog enriched nyob rau hauv lub sab saum toj nto, tsim ib tug nruj dua thiab ruaj khov Cr₂O₃ passive zaj duab xis, uas yog deb tsawg dua yuav raug puas los ntawm chloride ions tshaj lub lawm tsim passive zaj duab xis ntawm cov hlau tsis kho.

Cov txheej txheem thev naus laus zis rau cua sov tube electropolishing suav nrog rau 6 cov kauj ruam tseem ceeb: degreasing thiab tshem tawm cov roj kom tshem tawm cov tshuab lubricants thiab cov khoom paug; dej yaug kom tsis txhob hla -kev sib kis ntawm cov tshuaj tom ntej; pickling activation kom strip lub qub oxidized txheej thiab nthuav tawm cov hlau matrix tshiab; kev electropolishing nrog nruj tswj tam sim no ceev, kub thiab ua lub sij hawm; Secondary rinsing thiab neutralization rau neutralize residual acidic kua; passivation kawg thiab ziab kom kaw cov yeeb yaj kiab tiv thaiv. Txhua kauj ruam uas tshem tawm yuav ua rau tsis sib xws gloss thiab tsis ruaj tsis khov corrosion.

Piv nrog rau cov xuab zeb zoo tib yam thiab cov tshuab polishing, electropolishing muaj qhov zoo dua tsis tau. Mechanical polishing yuav tsim ib txheej nyuaj nyuaj rau ntawm qhov chaw, qhia qhov seem tensile kev nyuaj siab thiab ua rau muaj kev pheej hmoo ntawm kev ntxhov siab corrosion cracking. Electropolishing tshem tawm cov kev ntxhov siab- cov txheej txheem cuam tshuam tag nrho thiab tshem tawm cov kab me me uas cov kab mob thiab cov av tuaj yeem txuas tau. Nyob rau hauv circulating dej cua sov systems, electropolished hlab txo biofilm adhesion los ntawm ntau tshaj 60%, zoo heev txo qhov tshwm sim ntawm microbiologically induced corrosion. Lub caij no, lub ultra- du nto inhibits ntsev thiab organic teeb meem scaling, ncua lub sij hawm ntxuav thiab txo thermal kuj tshwm sim los ntawm fouling.

Nyob rau hauv cov xwm txheej ntawm daim ntawv thov, electropolished 316 cua sov raj yog qhov yuav tsum tau ua rau kev npaj tshuaj ua kua, khoom noj khoom haus cua sov, dej huv thiab cov khoom siv dej ultrapure. Rau cov pa tshuaj thiab dej khib nyiab cua sov, nws yog ib qho kev xaiv hloov khoom dua tshiab. Txawm hais tias tus nqi ua haujlwm nce nruab nrab, kev pabcuam lub neej tuaj yeem txuas ntxiv los ntawm 40% mus rau 80% raws li cov xwm txheej zoo sib xws.

Table 1 Performance Contrast Ntawm Ordinary 316 thiab Electropolished 316 Cua sov Tubes

表格

Tsim nyog thov ntawm cov txheej txheem electropolishing tuaj yeem ua kom muaj txiaj ntsig zoo tshaj plaws los tiv thaiv -corrosion peev xwm ntawm 316 stainless hlau cua sov raj yam tsis hloov mus rau siab dua - cov khoom siv hlau.