Vim tias 316L tuab-walled stainless hlau yeeb nkab yog corrosion-resistant, cuam tshuam-resistant, thiab high-temperature resistant, nws yog feem ntau siv nyob rau hauv tshuaj, tshuaj kev lag luam, khoom noj khoom haus, lub teeb kev lag luam, tshuaj machinery, industrial pipelines, thiab mechanical qhov chaw. Tau kawg, cov kav dej tuab-walled steel kuj tseem tsim nyog rau kev tsim thiab tsim cov kav dej thiab ntau yam hauv cov kav dej. Txawm li cas los xij, tuab-walled steel kav corrode tom qab siv sijhawm. Yog li, kuv yuav ua li cas yog tias 316L tuab-walled stainless hlau kav yog corroded?

Peb paub tias thaum 316L tuab-walled stainless hlau kav yog corroded los ntawm thermocouples, anodic oxidation puas lawm thiab cov electrode tsis zoo yog khaws cia. Yog tias peb sim ua kom cov hlau tsis muaj steel tuab-walled steel yeeb nkab raws li qhov tsis zoo electrode txij thaum pib mus txog thaum kawg, cov yeeb nkab steel yuav tsis yooj yim corrode. Txoj kev tiv thaiv corrosion no hu ua pipeline cathodic tiv thaiv. Qhov no kuj yog ib txoj hauv kev coj mus rau. Nws tsis tsuas yog siv cov khoom siv hlau txav tau los ua cov yeeb yaj kiab tiv thaiv tab sis tseem ua kom puas cov ntaub ntawv hlau txav tau thiab tswj cov khoom siv hlau. Kev tshawb fawb ntxiv tuaj yeem ua tiav yam tsis muaj kev puas tsuaj rau anodic oxidation. Yog li ntawd, txoj kev tiv thaiv cathodic tuaj yeem muab faib ua txoj kev tiv thaiv zaj duab xis thiab cov khoom siv hluav taws xob tiv thaiv txoj kev.

Nrog rau cov khoom siv tseem ceeb ua cov yeeb yaj kiab tiv thaiv, ntxig rau hauv qhov chaw tiv thaiv 316l stainless hlau yeeb nkab, los yog txuas cov hlau tiv thaiv nrog cov hlau, kom cov yeeb yaj kiab tiv thaiv thiab cov hlau tiv thaiv ua ob sab ntawm cov tshuaj tiv thaiv galvanic cell. Txij li cov yeeb yaj kiab tiv thaiv yog cov hlau ua haujlwm, nws muaj cov nyhuv anodic oxidation hauv lub roj teeb, yog oxidized thiab puas los ntawm huab cua corrosive, thiab cov hlau tiv thaiv yog cathode. Thawj lub roj teeb me me nres lossis tsis muaj zog hauv cathode ua haujlwm, thiab tom qab ntawd tiv thaiv cov khoom hlau. Thaum cov yeeb yaj kiab tiv thaiv tab tom yuav xeb, nws tuaj yeem hloov tau los ntawm lwm cov yeeb yaj kiab tiv thaiv.

Yog li ntawd, txoj kev tiv thaiv corrosion no yog txoj kev tiv thaiv tsheb ploj, tseem hu ua cathodic tiv thaiv txoj kev. Piv txwv li, muaj zinc blocks nyob rau hauv cov pa roj boilers, thiab zinc yog feem ntau embedded nyob ib ncig ntawm lub propellers ntawm ships. Zinc muaj zog ntau dua li hlau, yog li zinc maj mam corrodes thiab tiv thaiv lub qhov cub thiab cov kiv cua. Thaum lub sij hawm electrolysis txheej txheem, cov electrode txuas nrog tus ncej tsis zoo ntawm lub hwj chim mov tsis yooj yim rau kev puas tsuaj. Hauv cov khoom siv hluav taws xob no, cov hluav taws xob tsis tsim nyog, yog li cov phab ntsa tsis zoo 316L tuab phab ntsa stainless hlau yeeb nkab nws tus kheej tsis tuaj yeem plam electrons thiab ua cov ions zoo.

Hauv lwm lo lus, qhov tsis zoo electrode tsis yooj yim rau kev puas tsuaj. Raws li lub hauv paus ntsiab lus no, peb tuaj yeem siv tam sim no los txuas cov hlau tsis muaj steel tuab-walled steel yeeb nkab nrog kev sib txuas tsis zoo ntawm kev hloov hluav taws xob hloov hluav taws xob raws li qhov kev sib txuas tsis zoo, teeb tsa cov khoom siv hluav taws xob thiab cov ncej zoo ntawm lub zog hloov hluav taws xob xws li kev sib txuas anodic oxidation, thiab tom qab ntawd tswj cov khoom siv tsis zoo. Anodizing tuaj yeem yog qee cov kav dej khib nyiab, cov tsheb ciav hlau qub, thiab lwm yam, uas corrode maj mam nyob rau hauv qis qis. Txoj kev no zoo ib yam li txoj kev tiv thaiv zaj duab xis.