Kev siv hluav taws xob (electropolishing) yog ib qho txheej txheem tseem ceeb heev rau kev ua tiav cov nplaim du thiab huv si uas xav tau hauv kev lag luam xws li tshuaj, biotechnology, khoom noj & dej haus, thiab cov khoom siv kho mob. Txawm hais tias "tsis muaj kev sib txhuam" yog ib lo lus piv txwv, kev siv hluav taws xob tsim ib qho nplaim uas muaj qhov tsis sib xws me me thiab lub zog ntawm qhov nplaim tsawg heev, uas yog "tsis muaj kev sib txhuam" rau cov pa phem, cov kab mob me me, thiab cov kua dej.
Nov yog kev piav qhia ntxaws txog nws ua haujlwm li cas thiab vim li cas nws thiaj zoo tagnrho rau kev siv huv:
Electropolishing yog dab tsi?
Kev siv hluav taws xob (electropolishing) yog ib qho txheej txheem electrochemical uas tshem tawm ib txheej nyias nyias, tswj tau ntawm cov khoom siv (feem ntau yog 20-40µm) ntawm qhov chaw hlau, feem ntau yog cov hlau tsis xeb austenitic (xws li 304 thiab 316L). Qhov khoom ua haujlwm ua lub anode (+) hauv lub dab dej electrolytic (feem ntau yog kev sib xyaw ntawm cov kua qaub sulfuric thiab phosphoric). Thaum siv hluav taws xob, cov hlau ions raug yaj ntawm qhov chaw mus rau hauv cov electrolyte.
Lub Mechanism Smoothing Ob-Theem
1. Macro-Leveling (Anodic Leveling):
· Qhov ceev tam sim no siab dua ntawm cov ncov (cov ntsiab lus siab me me) thiab ntug dua li hauv cov hav vim nyob ze rau cathode.
· Qhov no ua rau cov ncov yaj sai dua li cov hav, ua kom qhov profile ntawm qhov chaw tiaj tus thiab tshem tawm cov khawb, burrs, thiab cov cim cuab yeej los ntawm kev tsim khoom.
2. Micro-Smoothing (Anodic Brightening):
· Ntawm theem microscopic, qhov saum npoo yog sib xyaw ntawm cov noob siv lead ua thiab cov khoom suav nrog sib txawv.
· Electropolishing feem ntau yaj cov khoom uas tsis ntom, tsis muaj zog, lossis ntxhov siab ua ntej, tawm hauv qab qhov chaw uas muaj cov qauv crystalline ruaj khov thiab me me tshaj plaws.
· Cov txheej txheem no ua rau qhov chaw du ntawm qib sub-micron, txo qis qhov Roughness ntawm Qhov Chaw (Ra). Ib qho chaw uas tau txhuam nrog tshuab yuav muaj Ra ntawm 0.5 - 1.0 µm, thaum ib qho chaw electropolished tuaj yeem ua tiav Ra < 0.25 µm, feem ntau qis li 0.1 µm.
Vim Li Cas Qhov No Thiaj Tsim Tau Ib Qho Chaw "Hygienic" lossis "Frictionless"
Kev Sib Piv Ncaj Qha: Kev Txhuam Txhuam vs. Kev Txhuam Hluav Taws Xob
| Feature | Kev Txhuam Txhuam (Abrasive) | Kev Siv Hluav Taws Xob (Electrochemical) |
| Qhov Chaw Nto | Ua rau cov hlau lo rau saum thiab hauv av. Nws ntes tau cov khoom tsis huv. | Tshem tawm cov khoom siv ntawm cov ncov, ua kom qhov chaw tiaj tus. Tsis muaj cov kuab paug uas nkag mus rau hauv. |
| Kev tshem tawm cov kab nrib pleb | Tej zaum yuav tsis ncav cuag cov nto sab hauv lossis cov micro-burrs. | Kho txhua qhov chaw uas raug nthuav tawm, suav nrog cov qauv sab hauv uas nyuaj heev. |
| Txheej xeb | Muaj peev xwm tsim ib txheej nyias nyias, cuam tshuam, thiab tsis sib xws. | Tsim ib txheej chromium oxide passive uas tuab, sib xws, thiab ruaj khov. |
| Kev Pheej Hmoo ntawm Kev Ua Phem | Muaj kev pheej hmoo ntawm cov khoom siv abrasive (xuab zeb, xuab zeb) nkag mus rau hauv qhov chaw. | Ntxuav qhov chaw uas siv tshuaj lom neeg los ntxuav; tshem tawm cov hlau uas nkag mus rau hauv thiab lwm yam khoom me me. |
| Kev sib xws | Nyob ntawm tus neeg teb xov tooj; tuaj yeem sib txawv ntawm cov ntu nyuaj. | Zoo sib xws thiab rov ua dua thoob plaws thaj chaw. |
Cov Ntawv Thov Tseem Ceeb
· Tshuaj/Biotech: Cov hlab dej ua haujlwm, cov khoom siv fermentation, cov kab chromatography, cov kav dej (SIP/CIP systems), lub cev valve, cov twj tso kua mis sab hauv.
· Khoom Noj & Dej Haus: Cov thoob sib tov, cov kav dej rau cov mis nyuj, cov kab ua npias, thiab cov kua txiv hmab txiv ntoo, cov khoom siv.
· Cov Khoom Siv Kho Mob: Cov cuab yeej phais, cov khoom cog rau hauv lub cev, cov pob txha reamers, cannulae.
· Semiconductor: Cov khoom siv tswj cov kua thiab roj uas muaj cov khoom huv siab.
Kev Txheeb Xyuas
Kev siv hluav taws xob ua rau muaj qhov chaw huv si "tsis muaj kev sib txhuam" tsis yog los ntawm kev ua kom nws du thiab zoo nkauj, tab sis los ntawm:
1. Electrochemically yaj cov microscopic peaks thiab cov imperfections.
2. Tsim kom muaj ib qho chaw zoo sib xws, tsis muaj qhov tsis zoo nrog rau qhov chaw tsawg kawg nkaus rau cov khoom ua qias tuaj.
3. Txhim kho cov txheej txheem oxide uas tiv taus xeb.
4. Pab txhawb kev ntws dej thiab kev ntxuav kom huv si.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-16-2025