Yuav ua li cas tiv thaiv tantalum tshav kub exchanger tubesheets los ntawm oxidation

Kev siv cov txheej txheem siab -kev ua tau zoo tiv thaiv yog ib txoj hauv kev zoo los cais cov tantalum tubesheets los ntawm ib puag ncig oxidative. Xaiv cov txheej txheem oxidation zoo heev thiab zoo adhesion rau tantalum, xws li ceramic-raws li lossis hlau-ceramic composite coatings. Cov txheej txheem txheej yuav tsum tau tswj nruj me ntsis kom ntseeg tau tias cov tuab tuab thiab tsis muaj qhov tsis xws li pinholes lossis tawg. Kev kho kom zoo ntawm cov tubesheets, suav nrog degreasing, derusting thiab roughening, yog qhov tseem ceeb los txhim kho lub zog sib txuas ntawm cov txheej thiab tantalum substrate, yog li txuas ntxiv oxidation tsis kam lub neej ntawm cov tubesheets.

Kev tswj hwm nruj ntawm qhov chaw ua haujlwm ntawm cov khoom siv hluav taws xob tuaj yeem txo qhov kev pheej hmoo oxidation ntawm tantalum tubesheets. Tsis txhob tso cov tubesheets kom siab -kub oxygen- thaj chaw nplua nuj ntau npaum li qhov ua tau. Yog hais tias lub tshav kub exchanger ua hauj lwm nyob rau hauv ib tug corrosive thiab oxidative nruab nrab, ntxiv tsim nyog inhibitors rau nruab nrab kom txo tau nws oxidative thiab corrosive zog. Tsis tu ncua saib xyuas qhov muaj pes tsawg leeg thiab qhov kub thiab txias ntawm qhov nruab nrab hauv lub tshav kub exchanger, thiab kho cov kev khiav hauj lwm tsis raws sij hawm thaum pom cov xwm txheej txawv txav los tiv thaiv ib puag ncig los ntawm deteriorating thiab ua rau oxidation ntawm tubesheets.

Siv inert gas shielding thaum lub sij hawm tsim, installation thiab txij nkawm ntawm tantalum tshav kub exchanger tubesheets yuav zoo tiv thaiv oxidation. Hauv cov txheej txheem xws li vuam thiab kev kho cua sov, qhia cov pa roj tsis zoo xws li argon kom tshem tawm cov pa oxygen nyob ib puag ncig cov ntawv, tsim kom muaj pa oxygen - ib puag ncig dawb. Xyuas kom lub inert roj kev pab them nqi yog dav thiab lub purity raws li qhov yuav tsum tau kom tsis txhob oxidation hauv zos tshwm sim los ntawm tsis tiav shielding. Qhov kev ntsuas no yog qhov tseem ceeb tshwj xeeb rau kev tiv thaiv qhov kev ncaj ncees ntawm lub raj xa dej thaum lub sijhawm ua haujlwm kub -.

Kev ua raws li kev tshuaj xyuas thiab kev saib xyuas tsis tu ncua pab tshawb xyuas thiab daws cov teeb meem oxidation ntawm tantalum tubesheets raws sijhawm. Siv cov txheej txheem uas tsis yog -kev sim ua kom puas tsuaj los xyuas qhov xwm txheej ntawm cov tubesheets, nrog rau muaj cov oxidation me ntsis, discoloration thiab txheej puas. Rau me me oxidation tshwm sim, siv cov kev kho mob tsim nyog xws li polishing thiab re- txheej los kho qhov kev tiv thaiv ntawm cov ntawv raj. Tsim kom muaj cov ntaub ntawv saib xyuas kom ntxaws txhawm rau taug qab cov xwm txheej kev pabcuam ntawm cov tubesheets thiab txhim kho lub voj voog txij nkawm thiab ntsuas raws li qhov kev ua haujlwm tiag tiag.