Tau ntev, txoj kev tu ib txwm siv -xws li kev siv tshuab (scraping, txhuam), siab - dej siab, thiab tshuaj ntxuav (acid pickling)- tau nthuav tawm ntau yam teeb meem thaum siv rau cov khoom siv hluav taws xob. Cov teeb meem no suav nrog qhov tsis muaj peev xwm tshem tawm cov nplai thiab lwm yam kev tso nyiaj; kua qaub-induced corrosion uas tsim tawm hauv cov khoom siv; thiab residual acid ua rau lwm yam corrosion los yog nyob rau hauv - deposit corrosion, thaum kawg yuav tsum tau hloov khoom siv. Tsis tas li ntawd, qhov tshuaj lom ntawm cov dej siv tu yuav tsum muaj peev nyiaj txiag ntau rau kev kho cov dej khib nyiab. Ib chav kawm tshiab uas tsis yog- cov tshuaj ntxuav corrosive rau cov cuab yeej tau tshwm sim; ntawm cov thev naus laus zis tshaj plaws ntawm cov no yog ForceTec tus neeg saib xyuas tu. Tus cwj pwm los ntawm nws cov kev ua haujlwm siab, eco-kev phooj ywg, kev nyab xeeb, thiab tsis yog{11}} cov khoom tsis zoo, nws tsis yog tsuas yog muab cov txiaj ntsig zoo huv si xwb tab sis kuj ua kom cov khoom siv ruaj khov, yog li lav lub sijhawm ntev - kev pabcuam lub neej ntawm cov khoom siv hluav taws xob. Tus neeg saib xyuas no- uas muaj qhov tshwj xeeb ntub dej thiab nkag mus rau cov khoom siv ntxiv- tuaj yeem tshem tawm cov khoom tawv tawv tshaj plaws uas tsim tawm hauv dej- siv cov khoom siv, suav nrog calcium carbonate nplai, xeb, roj seem, slime, thiab lwm yam sediments. Nyob rau tib lub sijhawm, nws tsis tsim kev puas tsuaj rau tib neeg kev noj qab haus huv thiab ua rau tsis muaj kev yaig, pitting, oxidation, lossis lwm yam tsis zoo rau cov ntaub ntawv xws li hlau, tooj liab, npib tsib xee, titanium, roj hmab, plastics, fibers, iav, thiab ceramics, yog li txuas ntxiv lub neej ntawm cov khoom siv. Thaum cov txheej txheem tsim khoom lag luam, kev ua haujlwm yuam kev tuaj yeem ua rau muaj qhov xwm txheej tshwm sim uas tshwm sim hauv cov nplais los yog txhaws hauv cov khoom siv tshwj xeeb lossis cov ntu hauv cheeb tsam ntawm cov kav dej, yog li cuam tshuam kev ua haujlwm ib txwm muaj. Nyob rau hauv cov xwm txheej zoo li no, lub hom phiaj tseem ceeb yog kom tshem tawm cov kab mob sai sai kom ntseeg tau tias kev ua haujlwm zoo ntawm lub tsev tsim khoom thiab rov qab kho qhov chaw mus rau nws lub xeev kev ua haujlwm, yog li rov ua kom lub tsev ua haujlwm tau zoo.
Piv txwv li, scale tsub zuj zuj ntawm cov khoom siv tshuaj lom neeg-xws li cov khoom siv hluav taws xob sib hloov hluav taws xob- tuaj yeem ua rau txo qis hauv cov hluav taws xob hloov pauv hluav taws xob, txo cov yeeb nkab ntws hla- ntu, lossis nce hauv kev khiav hauj lwm; qhov no, nyob rau hauv lem, drives nce kev noj ntawm lub zog thiab raw cov ntaub ntawv thaum ua rau ib tug cim poob nyob rau hauv ntau lawm efficiency. Hauv cov xwm txheej zoo li no, cov txheej txheem ntxuav thiab descaling yog ua haujlwm los kho cov cuab yeej tsim khoom rau nws qhov kev pom zoo. Vim muaj ntau yam, cov khoom siv xws li cov khoom siv hluav taws xob sib hloov hluav taws xob- nrog rau cov kav dej sib txuas- yog qhov ua rau muaj ntau yam kab mob, xws li coke deposits, roj residues, ntxhia nplais, sediments, corrosion byproducts, polymers, kab mob, thiab algae . ...xws li lwm yam slime. Txawm li cas los xij, kev sib sau ntawm cov nyiaj no thaum lub sijhawm ua haujlwm tuaj yeem ua rau cov khoom siv thiab cov kav dej tsis ua haujlwm. Qhov no ua rau muaj qhov tshwm sim tsis zoo rau cov kab ke cog qoob loo-suav nrog txo cov khoom tsim tawm, nrog rau kev siv zog thiab khoom siv ntxiv. Nyob rau hauv cov ntaub ntawv uas cov deposits yog tshwj xeeb corrosive, lawv muaj peev xwm txawm cuam tshuam cov txheej txheem ntws, yuam cov nroj tsuag mus kaw kev khiav hauj lwm. Qhov no ncaj qha ua rau ntau yam kev lag luam poob thiab ua rau muaj kev pheej hmoo ntawm kev raug mob hnyav. Nyob rau niaj hnub no lub sij hawm ntawm scientific kev nce qib, kiag li tiv thaiv cov tsim ntawm xws deposits yog tsis yooj yim sua. Yog li ntawd, kev tu cov cuab yeej siv-xws li cov khoom siv hluav taws xob hloov hluav taws xob- tau dhau los ua ib qho tseem ceeb thiab tseem ceeb ntawm kev tsim khoom hauv ntau qhov chaw (xws li roj av, tshuaj, hluav taws xob, thiab metallurgy). Siab -lub dav hlau dej siab ntxuav ntawm cov khoom siv hluav taws xob yog ib txoj hauv kev tu lub cev. Piv nrog rau cov ntawv qhia ib txwm siv, siv tshuab, lossis tshuaj ntxuav cov txheej txheem, nws muaj ntau yam zoo: cov nqi qis dua, kev tu zoo dua, thiab kev tu kom nrawm dua. Tsis tas li ntawd, nws tsim tsis muaj kuab paug ib puag ncig thiab ua rau tsis muaj corrosion rau cov khoom siv. Txoj kev loj hlob ntawm siab -lub siab dej dav hlau tu tshuab hauv Suav teb tau nrawm heev; qhov sib koom ntawm cov dav hlau dej-raws li kev lag luam tu hauv loj thiab nruab nrab- cov nroog loj thiab cov chaw lag luam tam sim no nce mus txog 20%, thiab cov lag luam tseem loj hlob ntawm ib xyoos ib zaug ntawm kwv yees li 10%- ib qho kev sib txawv uas pom tseeb tseem nyob hauv nws qhov nce nce. Nws tau kwv yees tias nyob rau hauv rau rau rau xya xyoo, siab - lub tshuab nqus dej twj tso kua mis yuav tuav txoj haujlwm tseem ceeb hauv Tuam Tshoj txoj kev lag luam tu, sawv cev rau txoj hauv kev uas tsis tuaj yeem mus tom ntej rau kev lag luam.
