Aluminium passivation tso cai rau qhov no tsis tshua muaj ductile cov khoom siv los siv rau ntau yam ntsiab lus. Tsis zoo li cov hlau tsis muaj steel, txhuas tsis muaj kev tiv thaiv corrosion. Vim li no, induced passivation yog tsim nyog nyob rau hauv txhua rooj plaub.
passivation ua li cas rau txhuas?
In passivation, tshuaj tiv thaiv nrog cov khoom siv hauv paus tsim ib txheej txheej ntawm cov ntaub thaiv npog. Cov ntaub thaiv npog no yog siv los ua microcoating. Rau txhuas, cov tshuaj tiv thaiv no tuaj yeem yog oxidation, lossis cov txheej txheem tshuaj hu ua anodization.
Yuav ua li cas hlau tuaj yeem ua tau?
Chromate hloov dua siab tshiab yog ib txoj hauv kev zoo tshaj plaws ntawm kev ua tsis tau tsuas yog aluminium, tab sis kuj zinc, cadmium, tooj liab, nyiaj, magnesium, thiab tin alloys. Anodizing yog cov txheej txheem electrolytic uas tsim cov txheej txheej oxide tuab. Cov txheej anodic muaj hydrated aluminium oxide thiab suav tias tiv taus corrosion thiab puas.
Koj tuaj yeem qhia tau li cas yog hlau tau dhau lawm?
Cov kws txawj siv tau ntau yam kev ntsuam xyuas los ntsuas ib feem ntawm lub xeev passive thiab tag nrho corrosion kuj suav nrog:
- Kev Ntsuas Tshuaj Tsuag. Kev kuaj ntsev ntsev yog ib qho ntawm cov kev ntsuam xyuas corrosion feem ntau. …
- Cyclic Corrosion lossis ntsuas av noo. …
- Copper Sulfate Testing. …
- Ferroxyl Test. …
- Thaum Passivation Tsis txaus.
Puas passivation tsim nyog?
Passivation yog qhov tsim nyog txhawm rau tshem tawm cov kab mob sib kis no thiab xa rov qab mus rau nws qhov qub corrosion specifications. Txawm hais tias passivation tuaj yeem txhim kho qhov kev tiv thaiv corrosion ntawm qee yam stainless hlau alloys, nws tsis tshem tawm qhov tsis zoo xws li micro tawg, burrs, cua sov tint thiab oxide nplai.
