Pickling yog txheej txheem ntawm kev kho cov hlau kom tshem tawm impurities thiab npaj qhov chaw rau kev kho mob ntxiv lossis txheej txheej. Txoj kev siv ntau tshaj plaws ntawm pickling yog siv cov kua qaub kom tshem tawm cov impurities saum npoo.
Nws yog ib qho kev xyaum ua ntau pua xyoo uas suav nrog cov kauj ruam los tsim kom muaj qhov du, huv si. Cia peb saib cov txheej txheem pickling thiab nws txawv li cas ntawm lwm cov txheej txheem kho saum npoo.
Hauv kab ntawv no peb yuav npog:
- Vim li cas Pickling Hlau Surfaces yog ib qho kev coj ua hauv niaj hnub tsim khoom
- Yog vim li cas Pickling yog qhov zoo tshaj plaws nto kho rau hlau
- Dab tsi poob thaum Pickling?
- Yuav Ua Li Cas Pickle Hlau Nto: Phau Ntawv Qhia Step-by-Step
- Thaum Pickling mus yuam kev: Qhov cuam tshuam tsis zoo ntawm Over-Pickling Hlau nto
- Vim li cas Pickling yog qhov zoo tshaj plaws kev kho deg rau koj cov khoom hlau
- Puas Pickling Tiag Tshem Tawm Los Ntawm Cov Hlau Hlau?
- Kev txwv thiab kev cuam tshuam ib puag ncig ntawm Pickling Hlau Nto
- Chemistry Tom Qab Pickling Solution
- Tshawb nrhiav lwm txoj hauv kev Pickling rau kev ntxuav thiab txhim kho hlau nto
- Pickling vs Passivation: Qhov txawv yog dab tsi?
- xaus
Vim li cas Pickling Hlau Surfaces yog ib qho kev coj ua hauv niaj hnub tsim khoom
Pickling yog cov txheej txheem ua hlau uas suav nrog kev siv cov kua qaub kom tshem tawm cov impurities ntawm cov hlau, cov ntawv hlau, thiab lwm yam ntaub ntawv hlau. Cov txheej txheem feem ntau yog siv rau hauv kev tsim cov khoom siv hlau los tsim kom muaj qhov du thiab huv si uas yooj yim rau kev ua haujlwm nrog thiab muaj kev tiv thaiv zoo dua rau kev hloov pauv tsis zoo cuam tshuam nrog kev cia lossis kev pabcuam.
Txheej txheem Pickling
Cov txheej txheem pickling muaj cov kauj ruam hauv qab no:
- Npaj cov hlau nto los ntawm kev sib tsoo, polishing, los yog cov ntawv zoo dov kom tshem tawm cov nplai lossis qhov tsis xws luag.
- Siv cov tshuaj pickling rau saum npoo hlau, uas feem ntau muaj cov khoom sib xyaw ua ke uas muaj txiaj ntsig zoo thiab tshem tawm cov impurities seem.
- Tso cai rau cov hlau ntub dej rau hauv cov tshuaj pickling rau qee lub sijhawm, nyob ntawm seb hom thiab qhov xwm txheej ntawm cov hlau tau khaws cia.
- Tshem cov hlau los ntawm cov tshuaj pickling thiab ntxuav nws kom huv si nrog dej kom tshem tawm cov ntsiab lus acid ntxiv.
Cov ntsiab lus ntawm Pickling Solutions
Qhov tseeb muaj pes tsawg leeg ntawm cov kev daws teeb meem sib txawv nyob ntawm seb hom hlau raug pickled thiab cov kev cai tshwj xeeb ntawm cov txheej txheem ntau lawm. Txawm li cas los xij, cov kev daws teeb meem feem ntau muaj cov kua qaub sib xyaw, xws li hydrochloric acid lossis sulfuric acid, thiab lwm cov tshuaj uas txhawb nqa cov txheej txheem pickling.
Qhov txawv ntawm Pickling
Muaj ob lub ntsiab ntawm pickling feem ntau siv nyob rau hauv niaj hnub manufacturing:
- Kub pickling, uas suav nrog kev siv cov tshuaj pickling rau cov hlau nto ntawm qhov kub thiab txias kom ua tau zoo ntawm cov txheej txheem.
- Txias pickling, uas yog siv cov tshuaj pickling rau cov hlau nto ntawm chav tsev kub, uas feem ntau yog siv rau cov khoom siv hlau tsis zoo los yog thaum siv cov kub pickling yog txwv.
Yog vim li cas Pickling yog qhov zoo tshaj plaws nto kho rau hlau
Pickling tau siv ntau pua xyoo los ua ib qho kev npaj cov hlau rau kev ua haujlwm. Yav dhau los, nws feem ntau yog ua los ntawm kev siv cov kua qaub rau saum npoo ntawm cov hlau, uas yuav ua kom zoo thiab tshem tawm cov nplai lossis lwm yam impurities. Niaj hnub no, pickling yog txheej txheem niaj hnub uas muaj ntau cov kauj ruam los tsim kom huv si, polished nto uas tsis muaj cov ntsiab lus tsis zoo.
Pickling yog dab tsi?
Pickling yog txheej txheem kho saum npoo uas suav nrog kev siv cov kua qaub kom tshem tawm cov impurities ntawm cov hlau. Cov txheej txheem feem ntau yog siv hauv kev tsim cov hlau, qhov twg nws raug hu ua "pickled thiab oiled." Cov kua qaub uas siv hauv pickling feem ntau yog sib xyaw ntawm hydrochloric thiab sulfuric acid, nyob ntawm seb hom hlau ua tiav.
Hom hlau uas tuaj yeem Pickled
Pickling tuaj yeem siv rau ntau yam hlau sib txawv, suav nrog:
- Steel
- Hlau
- Tooj
- Toog
- Txhuas
Cov kauj ruam koom nrog hauv txheej txheem Pickling
Cov txheej txheem pickling feem ntau muaj cov kauj ruam hauv qab no:
- Sib tsoo lossis polishing cov hlau kom tshem tawm qhov tsis zoo ntawm qhov chaw.
- Npaj cov kua qaub rau cov ntsiab lus thiab qhov kub thiab txias.
- Siv cov kua qaub rau cov hlau nto rau qee lub sijhawm.
- Tshem tawm cov kua qaub thiab yaug cov hlau nrog dej.
- Khaws cov hlau khaws cia rau hauv qhov chaw qhuav, txias kom tsis txhob muaj kev xeb ntxiv.
Dab tsi poob thaum Pickling?
Qhov concentration ntawm cov cawv txiv hmab kuj tseem ua lub luag haujlwm hauv cov txheej txheem pickling. Qhov concentration ntawm cov kua qaub los yog cov kua hauv paus tuaj yeem sib txawv nyob ntawm seb hom hlau tau khaws thiab cov impurities uas yuav tsum tau muab tshem tawm. Cov kua qaub ntau dua los yog cov kua hauv paus tso cai rau kev tshem tawm cov impurities zoo dua, tab sis kuj tuaj yeem ua rau qis dua qhov zoo. Qhov qis dua ntawm cov kua qaub los yog cov kua hauv paus muaj qhov ua kom zoo dua qub, tab sis tsis tuaj yeem tshem tawm tag nrho cov impurities.
Lub Sijhawm Ncej rau Pickling
Lub sij hawm thav duab rau pickling kuj txawv nyob ntawm seb hom hlau yog pickled thiab impurities uas yuav tsum tau muab tshem tawm. Lub sijhawm zoo tshaj plaws rau pickling feem ntau yog tsim los ntawm cov chaw tsim khoom ntawm cov cawv txiv hmab thiab tuaj yeem sib txawv ntawm ob peb feeb mus rau ob peb teev. Nws yog ib qho tseem ceeb uas yuav tsum tsis txhob tso cov hlau nyob rau hauv cov dej cawv ntev dhau, vim qhov no tuaj yeem ua rau over-pickling thiab puas rau saum npoo ntawm cov hlau.
Cov kev txhawb nqa siv hauv Pickling
Thaum lub sij hawm pickling txheej txheem, cov hlau feem ntau yog txhawb los ntawm tshwj xeeb units uas tso cai rau lub pickling cawv kom tag nrho nkag mus rau saum npoo ntawm cov hlau. Cov kev txhawb nqa no tuaj yeem siv rau daim ntawv, yob, lossis lwm cov duab uas tsim los tso cai rau cov dej cawv tuaj yeem tawm tsam cov impurities ntawm cov hlau.
Yuav Ua Li Cas Pickle Hlau Nto: Phau Ntawv Qhia Step-by-Step
Kauj Ruam 1: Npaj Cov Hlau Nto
Ua ntej pickling, nws yog ib qho tseem ceeb los npaj cov hlau nto. Cov kauj ruam no suav nrog tshem cov roj, roj, lossis av ntawm qhov chaw siv cov khoom siv abrasive. Nws yog ib qho tseem ceeb los xyuas kom meej tias qhov chaw huv si thiab tsis muaj impurities uas yuav cuam tshuam rau cov txheej txheem pickling.
Kauj Ruam 2: Siv cov tshuaj Pickling
Cov txheej txheem pickling suav nrog kev siv cov kua qaub rau saum npoo hlau. Feem ntau siv pickling daws yog hydrochloric los yog sulfuric acid. Cov kua qaub tshem tawm cov oxide txheej thiab cov impurities uas muaj nyob rau saum npoo ntawm cov hlau. Cov tshuaj pickling feem ntau yog siv los ntawm dipping cov hlau rau hauv cov kua qaub los yog txhuam cov tshuaj rau saum npoo.
Kauj Ruam 3: Tso cai rau Pickling Solution ua haujlwm
Tom qab siv cov tshuaj pickling, nws yog ib qho tseem ceeb kom cia nws ua hauj lwm rau ib lub sij hawm tshwj xeeb. Lub sij hawm xav tau rau cov txheej txheem pickling nyob ntawm hom hlau, thickness ntawm oxide txheej, thiab cov concentration ntawm cov kua qaub. Feem ntau, cov txheej txheem yuav siv qhov twg los ntawm ob peb feeb mus rau ob peb teev.
Kauj Ruam 4: Rinsing Cov Hlau Nto
Thaum cov txheej txheem pickling tiav, cov hlau saum npoo yuav tsum tau muab yaug kom huv si nrog dej kom tshem tawm cov kua qaub ntxiv. Cov kauj ruam no yog qhov tseem ceeb vim tias cov kua qaub tshuav ntawm qhov chaw tuaj yeem txuas ntxiv mus tua cov hlau thiab ua rau corrosion.
Kauj Ruam 5: Neutralizing cov kua qaub
Tom qab yaug, cov hlau saum npoo yuav tsum tau nruab nrab kom tsis txhob muaj tshuaj lom neeg ntxiv. Cov kauj ruam no yog siv cov tshuaj neutralizing rau cov hlau nto. Qhov feem ntau siv cov tshuaj neutralizing yog sib tov ntawm baking soda thiab dej.
Kauj Ruam 6: Qhuav lub Hlau Nto
Cov kauj ruam kawg hauv cov txheej txheem pickling yog kom qhuav cov hlau nto. Cov kauj ruam no yog qhov tseem ceeb heev vim tias cov dej noo ntxiv tuaj yeem ua rau cov hlau corrode. Cov hlau saum npoo tuaj yeem qhuav tau siv daim ntaub huv lossis los ntawm kev tso cua kom qhuav.
Zuag qhia tag nrho, pickling yog ib qho yooj yim tab sis zoo txheej txheem rau tshem tawm impurities los ntawm ib tug hlau nto. Nws muaj ntau yam txiaj ntsig, suav nrog kev tsim kom zoo nkauj thiab huv si, tshem tawm cov nplai thiab cov ntsiab lus oxide, thiab txhim kho tag nrho cov hlau zoo. Thaum muaj lwm txoj hauv kev rau tu hlau nto, pickling yog feem ntau siv thiab muab cov txiaj ntsig zoo tshaj plaws.
Thaum Pickling mus yuam kev: Qhov cuam tshuam tsis zoo ntawm Over-Pickling Hlau nto
Pickling yog ib kauj ruam tseem ceeb hauv kev tsim cov hlau huv thiab polished. Nws suav nrog kev siv cov kua qaub sib xyaw rau saum npoo hlau kom tshem tawm cov khoom soluble thiab impurities. Txawm li cas los xij, yog tias cov hlau yog pickled ntev dhau lawm, nws tuaj yeem cuam tshuam tsis zoo rau cov khoom kawg.
Yuav ua li cas kom tsis txhob over-Pickling
Txhawm rau kom tsis txhob over-pickling, nws yog ib qho tseem ceeb uas yuav tsum tau ua raws li cov txheej txheem pickling kom raug thiab tsis txhob tso cov hlau hauv cov tshuaj pickling ntev dua li qhov tsim nyog. Qee cov lus qhia kom tsis txhob over-pickling muaj xws li:
- Siv cov tshuaj pickling kom zoo: Ntau hom hlau xav tau cov kev daws teeb meem sib txawv. Nco ntsoov siv cov tshuaj kom zoo rau cov hlau uas koj ua haujlwm nrog.
- Saib xyuas cov txheej txheem pickling: Khaws lub qhov muag ntawm cov hlau thaum nws tab tom khaws kom ntseeg tau tias nws tsis nyob hauv cov tshuaj ntev dua li qhov tsim nyog.
- Siv cov khoom xyaw kom zoo: Nco ntsoov siv cov khoom xyaw kom zoo hauv cov tshuaj pickling kom tsis txhob over-pickling.
- Npaj cov hlau kom zoo: Nco ntsoov npaj cov hlau kom zoo ua ntej pickling kom ntseeg tau tias cov kua qaub sib xyaw yog siv sib npaug thiab tag nrho.
- Tshem tawm cov hlau los ntawm cov tshuaj pickling thaum lub sij hawm tsim nyog: Tsis txhob tso cov hlau hauv cov tshuaj pickling ntev dua li qhov tsim nyog.
Vim li cas Pickling yog qhov zoo tshaj plaws kev kho deg rau koj cov khoom hlau
Pickling yog ib txoj kev uas siv cov kua qaub kom tshem tawm impurities ntawm hlau nto. Cov txheej txheem no muaj ntau yam txiaj ntsig, nrog rau kev txhim kho cov kav ntev thiab kev ua haujlwm ntawm cov hlau. Cov txheej txheem pickling tshem tawm impurities xws li xeb, nplai, thiab lwm yam kab mob uas tuaj yeem ua rau cov hlau degrade raws sijhawm. Lub resulting huv si thiab du nto tsim los ntawm pickling txhais tau hais tias cov hlau yog zoo dua mus ua nws lub hom phiaj.
Yooj yim tswj thiab tsim nyog rau cov khoom sib txawv
Pickling yog ib txoj kev yooj yim thiab yooj yim-rau-tswj uas tsim nyog rau kev siv nrog ntau yam khoom siv. Cov txheej txheem pickling tuaj yeem siv los tshem tawm cov impurities ntawm hlau, tooj liab, hlau zoo nkauj, thiab txhuas alloys. Cov txheej txheem pickling kuj yog qhov zoo tagnrho rau kev tsim ib qho chaw du ntawm cov ntaub ntawv abrasive uas yuav nyuaj rau kev ua haujlwm nrog lwm txoj kev.
Muab qhov kev xav tshwj xeeb thiab saib
Cov txheej txheem pickling muab ib qho kev xav tshwj xeeb thiab saib cov hlau uas tsis pom nrog lwm cov kev kho saum npoo. Qhov tshwm sim saum npoo yog feem ntau qis hauv cov ntsiab lus carbon, uas txhais tau hais tias nws tsis tshua muaj oxidize lossis corrode dhau sijhawm. Cov txheej txheem pickling kuj tshem tawm cov txheej txheej yav dhau los, ua kom yooj yim los npaj cov hlau rau kev kho mob tom ntej.
Tshem tawm impurities thiab kab mob
Cov txheej txheem pickling tshem tawm impurities thiab kab mob los ntawm cov hlau nto, xws li xeb, nplai, thiab lwm yam sib xyaw. Cov cawv txiv hmab uas siv hauv cov txheej txheem feem ntau muaj hydrochloric lossis sulfuric acid, uas cuam tshuam nrog cov impurities los tsim cov txheej txheem oxide uas tuaj yeem tshem tau yooj yim. Cov kua qaub thiab oxide ntau dhau yog tom qab ntawd ntxuav tawm nrog dej, tawm hauv qab ib qho chaw huv thiab du.
Tiv thaiv Corrosion
Pickling yog ib qho kev coj ua hauv kev tsim khoom thiab feem ntau siv los tiv thaiv corrosion. Cov txheej txheem pickling tshem tawm cov impurities uas tuaj yeem ua rau xeb, ua rau cov hlau ruaj khov thiab kav ntev. Ntau lub tuam txhab nyiam pickling raws li kev kho deg rau lawv cov khoom hlau vim nws muaj kev tiv thaiv zoo tiv thaiv corrosion.
Alternative rau Abrasive Surface Treatments
Pickling yog lwm txoj hauv kev kho qhov chaw abrasive uas tuaj yeem ua rau lub cev puas tsuaj rau cov hlau. Cov txheej txheem pickling yog non-abrasive thiab tsis xav tau kev sib cuag ntawm lub cev nrog cov hlau. Qhov no txhais tau hais tias qhov tshwm sim saum npoo yog smoother thiab tsis tshua muaj peev xwm ua rau muaj kev puas tsuaj rau lwm cov ntaub ntawv uas nws los rau hauv kev sib cuag nrog.
Puas Pickling Tiag Tshem Tawm Los Ntawm Cov Hlau Hlau?
Pickling yog ib kauj ruam tseem ceeb hauv kev npaj cov hlau nto rau kev ua haujlwm ntxiv. Nws pab tshem tawm cov xeb lossis cov nplais uas tau tsim rau ntawm qhov chaw, tsim kom muaj qhov huv thiab zoo ib yam uas haum rau kev ua haujlwm ntxiv. Nyob ntawm seb hom hlau thiab thickness ntawm cov oxide txheej, pickling tuaj yeem nqa tawm siv ntau hom kev daws teeb meem, xws li hydrochloric acid lossis phosphoric acid.
Qhov tseem ceeb ntawm Pickling kom raug
Thaum pickling tuaj yeem yog txoj hauv kev zoo los tshem tawm xeb los ntawm cov hlau, nws yog ib qho tseem ceeb kom ua tiav cov txheej txheem kom tsis txhob muaj qhov tsis zoo. Yog tias cov tshuaj pickling muaj zog dhau los yog siv rau ntev heev, nws tuaj yeem yaj tsis yog xeb xwb tab sis kuj yog cov hlau hauv qab, uas ua rau cov khoom thinner thiab tsis muaj zog. Ntawm qhov tod tes, yog tias cov tshuaj pickling tsis muaj zog heev los yog tsis siv rau ntev txaus, nws yuav tsis tshem tawm tag nrho cov xeb, ua rau muaj qhov chaw tsis haum rau kev ua haujlwm ntxiv.
Qhov kawg tshwm sim: Ib qho huv thiab sib npaug hlau nto
Thaum pickling yog nqa tawm kom zoo, nws tuaj yeem pab tsim kom muaj cov hlau huv thiab zoo ib yam uas haum rau kev ua haujlwm ntxiv. Qhov tshwm sim saum npoo yog dawb los ntawm xeb thiab nplai, thiab muaj qhov zoo, polished tiav uas txhawb kev ua haujlwm zoo. Qhov kawg tshwm sim no yog feem ntau hu ua ib tug pickled nto, thiab yog dav siv nyob rau hauv metalworking kev lag luam.
Kev txwv thiab kev cuam tshuam ib puag ncig ntawm Pickling Hlau Nto
Pickling yog txheej txheem uas yuav tsum tau siv cov kua qaub, feem ntau hydrochloric lossis sulfuric, kom tshem tawm cov impurities ntawm cov hlau. Thaum nws muaj txiaj ntsig zoo hauv kev tshem tawm cov stains, xeb, thiab nplai, nws kuj yog ib txoj hauv kev zoo nkauj thiab corrosive uas tuaj yeem ua rau muaj kev puas tsuaj rau qee cov hlau alloys. Cov tshuaj acidic reacts nrog cov khoom siv hlau ntawm cov khoom, ua rau hydrogen embrittlement thiab lwm yam teeb meem uas tuaj yeem cuam tshuam qhov zoo ntawm cov khoom kawg.
Qhov nyuaj hauv kev tuav thiab tswj cov txheej txheem Pickling
Pickling yog cov txheej txheem uas yuav tsum tau muaj kev tswj hwm qib siab kom ntseeg tau tias qhov kev xav tau ua tiav. Qhov no suav nrog kev tswj hwm qhov concentration ntawm cov kua qaub, qhov kub thiab txias ntawm cov txheej txheem ua tiav, thiab lub sijhawm ntev ntawm cov hlau qhov chaw khaws cia hauv cov pickle. Cov pov tseg uas tshwm sim, uas muaj cov dej cawv siv, sludge, thiab acidic ntsev, yog cais raws li kev phom sij thiab yuav tsum tau muab pov tseg rau hauv qhov chaw pov tseg lossis kho los ntawm cov txheej txheem neutralization.
Cov kev txwv siv ntawm Pickling
Pickling tsis muaj feem xyuam rau txhua hom hlau alloys. Nws yog corrosive heev rau qee cov hlau, suav nrog txhuas thiab tooj liab, thiab tuaj yeem ua rau lawv cov khoom puas. Tsis tas li ntawd, pickling tuaj yeem ua rau muaj teeb meem reactivity nrog qee cov alloys, ua rau hydrogen embrittlement thiab lwm yam teeb meem uas tuaj yeem cuam tshuam qhov zoo ntawm cov khoom kawg. Cov kev txwv ntawm pickling ua rau nws tsis xav tau txoj hauv kev los ntxuav cov hlau, thiab lwm txoj hauv kev tau tsim los muab kev ua kom zoo dua thiab huv dua.
Chemistry Tom Qab Pickling Solution
Cov kua qaub nyob rau hauv cov tshuaj pickling reacts nrog cov hlau nto, dissolving lub impurities thiab tsim ib tug du, huv si nto. Cov kua qaub kuj tshem tawm ib txheej nyias ntawm cov hlau los ntawm qhov chaw, uas yuav pab tsim kom muaj ib qho tuab tuab ntawm tag nrho cov khoom. Tus nqi ntawm cov hlau tshem tawm nyob ntawm seb hom kua qaub siv, lub thickness ntawm cov hlau, thiab lub sij hawm ntev ntawm cov hlau yog pickled.
Qhov tseem ceeb ntawm cov ntsiab lus acid
Cov ntsiab lus ntawm cov kua qaub ntawm pickling yog ib qho tseem ceeb vim nws txiav txim siab npaum li cas cov tshuaj muaj zog thiab sai npaum li cas nws yuav yaj cov impurities. Cov ntsiab lus muaj zog acid yuav yaj cov impurities sai dua, tab sis nws kuj tuaj yeem ua rau cov hlau puas yog tias tso rau hauv cov tshuaj ntev dhau. Cov ntsiab lus tsis muaj zog acid yuav siv sij hawm ntev dua kom yaj cov impurities, tab sis nws tsis tshua muaj peev xwm ua rau cov hlau puas.
Lwm txoj hauv kev rau Pickling
Thaum pickling yog tus qauv kev coj ua rau kev npaj cov chaw hlau rau kev tsim khoom, muaj ntau txoj hauv kev uas cov tuam txhab yuav nyiam nyob ntawm cov ntaub ntawv tshwj xeeb thiab cov khoom siv. Cov txheej txheem no suav nrog polishing, sib tsoo, thiab ua kom cov tuab ntawm cov hlau los tsim kom muaj qhov sib xws. Txawm li cas los xij, pickling tseem yog txoj kev siv dav tshaj plaws vim nws cov txiaj ntsig zoo thiab cov txiaj ntsig zoo ib yam.
Cia thiab tuav cov tshuaj Pickling
Cov kua txiv hmab txiv ntoo yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav thiab ua haujlwm nrog kev saib xyuas vim nws qhov xwm txheej corrosive heev. Nws yuav tsum tau muab cia rau hauv cov thawv me me kom tiv thaiv kom tsis txhob muaj kab mob thiab yuav tsum khaws cia kom deb ntawm cov ntaub ntawv rhiab heev. Cov tshuaj yuav tsum tau npaj thiab siv nyob rau hauv ib tug zoo-ventilated cheeb tsam los tiv thaiv cov inhalation ntawm fumes.
Tshawb nrhiav lwm txoj hauv kev Pickling rau kev ntxuav thiab txhim kho hlau nto
Thaum pickling yog ib txoj kev siv dav rau kev tu thiab txhim kho qhov chaw ntawm cov hlau, nws tsis yog tib qho kev xaiv muaj. Nyob rau hauv xyoo tas los no, ib tug xov tooj ntawm lwm txoj kev tau tshwm sim uas muaj ntau yam kev pab cuam piv rau cov tsoos pickling. Hauv seem no, peb yuav tshawb txog qee qhov kev xaiv nrov tshaj plaws rau pickling, lawv siv, qhov zoo, thiab qhov tsis zoo.
Hydrocleaning
Hydrocleaning yog ib txoj kev siv tshuab tshem cov roj, xeb, thiab lwm yam kab mob los ntawm cov hlau. Nws tso siab rau cov dav hlau dej siab kom tawg tawm cov impurities, tawm hauv qhov chaw du thiab huv si. Hydrocleaning feem ntau suav hais tias yog ib qho kev hloov hauv eco-phooj ywg rau pickling, vim nws tsis cia siab rau cov tshuaj tiv thaiv los ntxuav cov khoom. Qee qhov txiaj ntsig tseem ceeb ntawm hydrocleaning suav nrog:
- Tsis xav tau cov kua qaub lossis lwm yam tshuaj
- Nws tuaj yeem siv rau ntau yam khoom siv thiab cov alloys
- Tso cov txheej txheem microscopically meej rau ntawm qhov chaw, txhim kho corrosion kuj
- Nws tuaj yeem siv los ntxuav thiab txhim kho cov khoom tshwj xeeb uas nyuaj rau pickle
Txawm li cas los xij, hydrocleaning yuav tsis yog qhov kev xaiv zoo tshaj plaws rau txhua daim ntawv thov. Nws tuaj yeem kim piv rau pickling, thiab nws yuav tsis zoo li tshem tawm qee yam kab mob.
Kev Tu Laser
Laser tu yog ib txoj hauv kev tshiab ntawm kev ntxuav cov hlau uas siv lub tshuab hluav taws xob siab kom tshem tawm xeb, roj, thiab lwm yam impurities. Lub laser muaj peev xwm ua kom pom tseeb rau thaj chaw muaj kab mob, tawm hauv qhov chaw du thiab huv si. Laser tu feem ntau suav hais tias yog ib txoj hauv kev zoo dua thiab siv tau zoo dua li kev khaws cia, vim nws tuaj yeem siv los tshem tawm cov kab mob los ntawm qhov chaw nyuaj. Qee qhov txiaj ntsig tseem ceeb ntawm kev ntxuav laser muaj xws li:
- Tsis xav tau tshuaj los yog siv tshuab ntxhua khaub ncaws
- Nws tuaj yeem siv rau ntau yam khoom siv thiab cov alloys
- Tso cov txheej txheem microscopically meej rau ntawm qhov chaw, txhim kho corrosion kuj
- Nws tuaj yeem siv los ntxuav thiab txhim kho cov khoom tshwj xeeb uas nyuaj rau pickle
Txawm li cas los xij, kev ntxuav laser tuaj yeem kim piv rau pickling, thiab nws yuav tsis yog qhov kev xaiv zoo tshaj plaws rau cov khoom loj lossis cov khoom ntim siab.
Electropolishing
Electropolishing yog ib txoj kev siv tshuaj los txhim kho qhov chaw tiav ntawm cov hlau. Nws tso siab rau cov tshuaj tiv thaiv electrochemical kom tshem tawm ib txheej nyias ntawm cov khoom los ntawm qhov chaw, tawm hauv qhov du thiab ci tiav tom qab. Electropolishing feem ntau suav hais tias yog ib txoj hauv kev zoo dua thiab siv tau zoo dua li kev pickling, vim nws tuaj yeem siv los txhim kho qhov chaw tiav ntawm qhov nyuaj. Qee qhov txiaj ntsig tseem ceeb ntawm electropolishing muaj xws li:
- Tsis xav tau kev tu txhua yam
- Nws tuaj yeem siv rau ntau yam khoom siv thiab cov alloys
- Tso cov txheej txheem microscopically meej rau ntawm qhov chaw, txhim kho corrosion kuj
- Yuav siv tau los txhim kho qhov chaw tiav ntawm cov khoom tshwj xeeb uas nyuaj rau pickle
Txawm li cas los xij, electropolishing tuaj yeem kim piv rau pickling, thiab nws yuav tsis yog qhov kev xaiv zoo tshaj plaws rau cov khoom loj lossis cov khoom ntim siab.
Txheej thiab Barrier Method
Cov txheej txheem txheej txheej thiab txheej txheem cuam tshuam nrog kev siv cov yeeb yaj kiab tiv thaiv lossis txheej txheej rau saum npoo ntawm cov hlau kom tiv thaiv xeb thiab lwm yam kev xeb. Cov txheej txheem no feem ntau suav hais tias tsis muaj txiaj ntsig zoo dua li pickling lossis lwm txoj kev ntxuav, vim lawv tsis tshem cov kab mob ntawm qhov chaw. Txawm li cas los xij, lawv tuaj yeem muaj txiaj ntsig zoo hauv qee cov ntawv thov uas lub hom phiaj yog los muab cov txheej txheem tiv thaiv ntau dua li ntxuav qhov chaw. Qee cov txheej txheem ntau tshaj plaws thiab cov txheej txheem thaiv muaj xws li:
- Siv cov roj los yog roj txheej rau saum npoo
- Siv cov tshuaj pleev xim uas ua rau lub ntsej muag los muab cov txheej txheem tiv thaiv
- Siv lub cev tiv thaiv, xws li zaj duab xis yas, rau saum npoo
Thaum txheej txheej thiab thaiv txheej txheem feem ntau tsis tshua muaj txiaj ntsig zoo dua li pickling lossis lwm txoj kev ntxuav, lawv tuaj yeem siv tau rau hauv qee yam kev siv uas lub hom phiaj yog los muab cov txheej txheem tiv thaiv es tsis yog ntxuav lub npoo.
Pickling vs Passivation: Qhov txawv yog dab tsi?
Pickling yog ib txoj kev siv dav hauv kev kho cov hlau thiab lwm yam hlau kom tshem tawm nplai, xeb, thiab lwm yam impurities ntawm qhov chaw. Cov txheej txheem suav nrog kev siv cov kua qaub rau cov hlau, uas ua rau cov txheej txheem oxide thiab lwm yam kab mob uas muaj nyob rau ntawm qhov chaw. Tsis zoo li passivation, pickling tsim kev hloov pauv ntau dua rau cov hlau, cuam tshuam rau nws cov qauv thiab cov tsos.
Nov yog qee cov ntsiab lus tseem ceeb uas yuav tsum nco ntsoov txog pickling:
- Cov txheej txheem pickling feem ntau yog siv los ntxuav thiab npaj cov hlau rau kev kho mob ntxiv lossis ua tiav.
- Cov kua qaub uas siv rau hauv pickling tuaj yeem sib txawv nyob ntawm seb hom hlau thiab qhov xav tau, tab sis nws feem ntau yog cov tshuaj muaj zog ntawm hydrochloric lossis sulfuric acid.
- Pickling tuaj yeem nqa tau los ntawm kev siv cov txheej txheem kub lossis txias, nyob ntawm cov khoom siv thiab qib ntawm corrosion tam sim no.
- Lub sij hawm ntev ntawm cov hlau tso rau hauv cov tshuaj pickling nws txawv nyob ntawm seb hom hlau thiab qib ntawm corrosion tam sim no.
- Pickling tuaj yeem cuam tshuam rau cov xim thiab cov tsos ntawm qee qhov chaw, xws li chrome, thiab tuaj yeem cuam tshuam kev ua haujlwm ntawm qee yam khoom yog tias tsis ua haujlwm zoo.
- Pickling tsis yog ib qho yooj yim txheej txheem thiab yuav tsum tau ua raws li kev ruaj ntseg ntsuas kom muaj kev nyab xeeb ntawm cov neeg ua raws li kev kho mob.
Passivation: Qhov yooj yim thiab Natural Alternative
Passivation, ntawm qhov tod tes, yog cov txheej txheem siab dua uas tau lees paub tias yog qhov tsis tshua muaj siab dua li pickling. Nws siv nitric acid los yog citric acid los tsim ib txheej oxide nyias ntawm cov hlau, uas tiv thaiv nws los ntawm corrosion ntxiv. Tsis zoo li pickling, passivation tsis feem ntau mus hauv qab ntawm cov hlau thiab tsis hloov cov khoom ntawm cov hlau.
Nov yog qee cov ntsiab lus tseem ceeb uas yuav tsum nco ntsoov txog passivation:
- Passivation feem ntau yog siv los tiv thaiv stainless hlau thiab lwm yam hlau los ntawm corrosion thiab lwm yam kev puas tsuaj.
- Cov txheej txheem cuam tshuam nrog kev ntxuav cov hlau nto kom tshem tawm cov kab mob, ua raws li kev siv cov kua qaub los tsim cov txheej txheem oxide passive.
- Passivation yog txheej txheem ntuj uas tshwm sim thaum qee cov hlau raug huab cua lossis dej, tab sis nws kuj tuaj yeem ua tiav los ntawm kev kho kom raug.
- Passivation yog ib txoj kev pom dav dav ntawm kev tiv thaiv cov hlau thiab feem ntau siv hauv aerospace, kev kho mob, thiab zaub mov kev lag luam.
- Hom kua qaub siv nyob rau hauv passivation txawv nyob ntawm seb hom hlau thiab qhov xav tau, tab sis feem ntau nws yog ib qho tsis muaj zog ntawm nitric lossis citric acid.
Lub ntsiab sib txawv ntawm Pickling thiab Passivation
Nov yog qee qhov sib txawv tseem ceeb ntawm pickling thiab passivation:
- Pickling yog ib txoj kev txhoj puab heev ntawm kev kho cov hlau nto, thaum passivation yog txheej txheem ntau dua thiab maj mam.
- Pickling tsim kev hloov pauv ntau dua rau cov hlau, cuam tshuam rau nws cov qauv thiab cov tsos, thaum passivation tsis hloov cov khoom ntawm cov hlau.
- Pickling feem ntau yog siv los ntxuav thiab npaj cov npoo hlau rau kev kho mob ntxiv lossis ua tiav, thaum passivation feem ntau yog siv los tiv thaiv cov hlau los ntawm corrosion thiab lwm yam kev puas tsuaj.
- Cov kua qaub uas siv rau hauv pickling feem ntau yog cov tshuaj muaj zog ntawm hydrochloric los yog sulfuric acid, thaum cov kua qaub uas siv hauv kev ua kom tsis muaj zog feem ntau yog cov tshuaj tsis muaj zog ntawm nitric lossis citric acid.
- Pickling tuaj yeem cuam tshuam cov xim thiab cov tsos ntawm qee qhov chaw, xws li chrome, thaum passivation tsis cuam tshuam rau cov tsos ntawm cov hlau.
- Pickling yuav tsum tau ua raws li kev tiv thaiv kev nyab xeeb kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm kho mob, thaum passivation yog txheej txheem yooj yim dua thiab muaj kev nyab xeeb tag nrho.
xaus
Yog li, pickling yog txheej txheem kho saum npoo siv los tshem tawm impurities los ntawm cov hlau. Nws yog ib qho kev coj ua hauv kev tsim khoom niaj hnub no thiab koom nrog kev siv cov kua qaub kom tshem tawm cov impurities saum npoo. Koj tuaj yeem xaiv cov hlau, tab sis nws yog qhov zoo tshaj plaws rau pickle steel, vim tias nws yog cov hlau feem ntau siv hauv kev tsim khoom. Yog li, tam sim no koj paub yuav ua li cas pickle ib tug hlau nto, yog li mus tom ntej thiab pickle tam sim ntawd!
Kuv yog Joost Nusselder, tus tsim ntawm Tools Doctor, cov ntsiab lus lag luam, thiab txiv. Kuv nyiam sim cov cuab yeej tshiab, thiab ua ke nrog kuv pab neeg kuv tau tsim cov ntawv blog tob txij li xyoo 2016 los pab cov neeg nyeem siab ncaj nrog cov cuab yeej & cov lus qhia ua khoom siv.
