Stainless hlau yog tshwj xeeb vim hais tias nws fights xeb thiab puas nyob rau hauv peb txoj kev loj. Nws muaj ib tug tiv thaiv passive txheej, muaj zog alloying ntsiab, thiab tshwj xeeb nto nta. Cov txheej txheem passive feem ntau yog chromium oxide. Cov txheej no npog cov hlau thiab thaiv dej thiab cua. Qhov kev thaiv no txo qis txoj hauv kev ntawm xeb. Nws pab cov hlau ruaj khov rau lub sijhawm ntev. Nickel thiab molybdenum yog cov hlau alloying. Lawv ua
stainless hlau kav ntev dua nyob rau hauv qhov chaw nyuaj. Smooth nto thiab pab tu yooj yim
stainless hlau tiv thaiv kev puas tsuaj. Cov nta no kuj pab kom nws ci.
Peb Lub Tuam Txhab siv cov khoom no los muab cov kev daws teeb meem steel muaj zog.
Cov txheej passive pab tiv thaiv corrosion.
Cov txheej no ua haujlwm zoo li daim thaiv tiv thaiv dej thiab cua.
Nws ua haujlwm zoo npaum li cas nyob ntawm kev saib xyuas thiab qhov chaw nws siv.
Ntsiab Cai
Stainless hlau nres xeb nrog ib txheej tshwj xeeb uas ua kom tsis muaj dej thiab cua.
Ntxuav nws ntau zaus nrog xab npum mos thiab daim ntaub mos ua kom cov txheej txheem no muaj zog thiab tsis xeb.
Nickel thiab molybdenum ua rau cov hlau tsis muaj zog thiab pab nws tawm tsam xeb, txawm tias nyob hauv qhov chaw tawv.
Kev xaiv cov qib stainless hlau zoo yog qhov tseem ceeb heev rau txhua txoj haujlwm kom nws kav ntev thiab ua haujlwm zoo.
Cov npoo du pab tiv thaiv xeb vim dej thiab tshuaj tsis tuaj yeem ua mob rau cov hlau yooj yim.
Chromium & Passive Txheej
Stainless hlau & Chromium
Chromium pab stainless hlau nres xeb. Thaum chromium sib xyaw nrog hlau, nws hloov cov hlau ua li cas. Stainless hlau xav tau yam tsawg kawg 10.5% chromium los tiv thaiv xeb. Feem ntau hom muaj ntau dua chromium. Ntau chromium pab cov hlau tiv thaiv kev puas tsuaj los ntawm cov tshuaj thiab huab cua. Yog tias chromium poob qis dua 12%, cov hlau poob nws daim thaiv. Xeb tuaj yeem pib, thiab cov hlau yuav tsis ua kom muaj kev tiv thaiv zoo.
Stainless hlau xav tau yam tsawg 10.5% chromium hu ua stainless.
Ntau chromium txhais tau tias kev tiv thaiv zoo dua los ntawm cov tshuaj thiab huab cua.
Qhov saum npoo tsis tau txais cov txheej txheem tiv thaiv yog tias chromium tsawg dua 12%.
Chromium qis dua 12-15% tuaj yeem ua rau xeb ntawm cov nplej.
Passive Zaj duab xis tsim
Chromium nyob rau hauv stainless hlau reacts nrog oxygen los ntawm huab cua. Qhov no ua rau nyias nyias txheej ntawm chromium oxide rau saum. Cov zaj duab xis passive ua haujlwm zoo li daim ntaub thaiv. Nws txwv tsis pub dej, huab cua, thiab lwm yam tsis zoo los ntawm kev kov cov hlau. Cov ntaub thaiv npog no pab stainless hlau tiv thaiv xeb. Cov zaj duab xis tuab thiab muaj zog npaum li cas nyob ntawm seb nws nyob qhov twg. Hauv qhov chaw uas tsis yog acidic, zaj duab xis nyob ruaj khov thiab tiv thaiv cov hlau. Hauv qhov chaw acidic, zaj duab xis tuaj yeem tsis muaj zog, thiab xeb tuaj yeem pib.
Cov zaj duab xis passive tuaj yeem kho nws tus kheej yog tias nws tau khawb, yog li cov hlau nyob ruaj ntseg.
Txwv Kev Tiv Thaiv
Cov txheej passive ntawm stainless hlau ua haujlwm hauv ntau qhov chaw. Tab sis qee yam tuaj yeem rhuav tshem daim ntaub thaiv no. Chloride ions hauv ntsev thiab dej hiav txwv tuaj yeem ua rau cov yeeb yaj kiab tsis zoo. Qhov no ua rau cov qhov me me thiab xeb ntau dua. Cov hauv paus muaj zog thiab cov dej noo ntau kuj ua rau cov ntaub thaiv tsis muaj zog. Cov huab cua qias neeg tuaj yeem ua rau xeb sai dua. Thaum cov ntaub thaiv npog tawg, cov hlau poob nws lub zog los tiv thaiv xeb thiab kev puas tsuaj.
Chloride ions ua rau cov ntaub thaiv npog sai dua.
Ntau cov dej noo, ntsev, thiab cua qias neeg yog teeb meem loj rau cov hlau tsis muaj steel.
Alloying Elements
Nickel lub luag haujlwm
Nickel pab stainless hlau tiv thaiv xeb zoo dua. Thaum npib tsib xee ntxiv, nws ua rau muaj zog passive txheej. Cov txheej no ua rau cov hlau tsis muaj xeb thiab ua rau raug mob. Nickel kuj pab nres qhov me me ntawm kev tsim. Cov qhov no tuaj yeem los ntawm cov tshuaj muaj zog. Txawm tias me ntsis npib tsib xee, zoo li 3%, pab ntau heev. Nickel cia cov hlau tsis muaj zog nyob hauv ntau qhov chaw. Nws kuj tseem qeeb qeeb npaum li cas cov hlau xeb. Qhov no ua haujlwm thaum qhov chaw ua haujlwm lossis tsis ua haujlwm. Yog vim li cas nickel tseem ceeb hauv ntau cov hlau tsis muaj steel.
Cov txiaj ntsig Molybdenum
Molybdenum muab kev pab ntxiv rau stainless hlau. Nws yog ib qho tseem ceeb heev uas muaj ntsev ntau los yog chlorides. Molybdenum pab kom cov zaj duab xis passive los ntawm kev tawg. Nws kuj tseem ua kom nrawm nrawm npaum li cas cov hlau hnav tam sim ntawd. Thaum lub sij hawm, molybdenum tsim nyob rau saum npoo. Qhov no ua rau cov hlau tseem zoo dua ntawm kev sib tsoo xeb. Cov lus hauv qab no qhia tias molybdenum ua li cas:
Mechanism |
Kev piav qhia |
Kev tiv thaiv ntawm Passive Film Breakdown |
Molybdenum pab tiv thaiv kev tawg ntawm passive oxide zaj duab xis, txhim khu kev tiv thaiv pitting hauv chloride ib puag ncig. |
Kev txo qis ntawm Active Hlau Dissolution |
Molybdenum txo qhov kev sib cais ntawm cov hlau nquag thaum lub sij hawm hauv zos corrosion, pab nyob rau hauv repassivation. |
Nto Enrichment |
Molybdenum qhia tau hais tias deg enrichment nyob rau lub sij hawm, uas pab txhim kho corrosion kuj. |
Nickel thiab molybdenum ua ke ua rau cov hlau tsis muaj steel kav ntev dua. Lawv pab nws muaj zog nyob rau hauv qhov chaw nyuaj.
Corrosion Resistance Qib
Stainless hlau los ntawm ntau hom. Txhua hom fights xeb nyob rau hauv nws tus kheej txoj kev. Cov lus hauv qab no sib piv peb qib sib xws:
Stainless Hlau Qib |
Corrosion Resistance Level |
Cov yam ntxwv tseem ceeb |
304 |
Nruab nrab |
Zoo rau kev siv dav dav, tsis tshua muaj zog rau cov kua qaub thiab chlorides |
316 |
Siab |
Zoo dua rau pitting thiab crevice corrosion, haum rau marine daim ntaub ntawv |
316L |
Siab heev |
Txhim khu kev tiv thaiv corrosion, zoo tagnrho rau cov tshuaj phem ib puag ncig |
Lwm hom, xws li ferritic thiab martensitic, muaj cov haujlwm tshwj xeeb. Ferritic stainless hlau yog siv rau hauv tsheb trim thiab khoom noj khoom haus. Martensitic hom yog zoo rau riam thiab springs. Koj yuav tsum xaiv hom zoo rau qhov twg nws yuav siv. Qib nrog ntau alloy yuav raug nqi ntau dua thaum xub thawj. Tab sis lawv kav ntev dua thiab xav tau kev kho tsawg dua hauv qhov chaw tawv.
Nto Khoom
Smooth nto
Smooth nto pab stainless hlau tiv thaiv xeb. Thaum cov hlau yog polished, nws tau txais tsawg ntxhib. Qhov no ua rau nws nyuaj rau tej yam xws li dej los yog tshuaj tua kab mob. Tsawg dua qhov thiab cov kab nrib pleb txhais tau hais tias xeb muaj tsawg qhov chaw pib. Kev ua tiav zoo pab cov txheej txheem passive sib npaug. Stainless hlau nrog ib tug zoo tiav yog yooj yim los ntxuav. Nws tsis ntxiab av lossis tshuaj lom ntau npaum li.
Smoother finishes txo txoj hauv kev ntawm pitting corrosion.
Polished nto tiv thaiv crevice corrosion zoo dua li cov ntxhib.
Electropolished stainless hlau muaj ib tug zoo passive zaj duab xis.
Ib tug du nto pab stainless hlau nyob ci iab. Nws kuj pab nws nyob ntev dua nyob rau hauv qhov chaw tawv.
Kev tu thiab tu
Kev tu thiab saib xyuas cov hlau tsis huv ua rau cov txheej txheem tsis zoo. Kev tu tsis tu ncua tshem tawm cov av thiab cov khoom tsis zoo. Qhov no pab kom cov yeeb yaj kiab tsis muaj zog. Siv xab npum me me thiab txhuam txhuam kom huv si stainless hlau. Tom qab ntxuav, yaug nrog dej huv. Qhuav nrog ib daim ntaub mos kom tsis txhob muaj dej thiab stains.
Maj mam txhuam cov av nrog cov nylon txhuam.
Siv cov xab npum me me los yog tshuaj ntxuav tes uas muaj kev nyab xeeb rau cov hlau tsis muaj steel.
Yaug nrog dej huv.
Qhuav nrog ib daim ntaub mos.
Tsis txhob siv cov ntaub plaub hlau lossis cov tshuaj hnyav. Kov carbon steel lossis hlau tuaj yeem ua rau xeb. Hnav hnab looj tes kom huv yuav tsum tsis txhob muaj cov ntiv tes thiab cov cim.
Kev ntxuav feem ntau pab stainless hlau tiv thaiv xeb. Nws kuj pab kom nws kav ntev dua, txawm nyob hauv qhov chaw nyuaj.
Kev puas tsuaj rau lub cev
Stainless hlau muaj zog thiab tawv. Nws tuaj yeem ua haujlwm hnyav yam tsis muaj kev khoov. Nws yog ib qho nyuaj tab sis tuaj yeem khoov yam tsis muaj kev tawg. Qhov no ua rau nws nyuaj rau dents lossis khawb.
Khoom |
Tau txais txiaj ntsig |
Siab tensile zog |
Kov siab thiab kev ntxhov siab |
Ductility |
Khoov tab sis tsis tawg |
Hardness |
Fights nto puas thiab hnav |
Cov yam ntxwv no ua rau cov hlau tsis muaj steel zoo rau cov chaw uas xav tau cov hlau muaj zog thiab xeb-resistant. Yog tias nws tau khawb los yog dented, koj tuaj yeem kho nws yooj yim. Buffing los yog siv cov ntaub mos muag tuaj yeem ua rau nws zoo dua tshiab.
Stainless hlau nres xeb thiab kev puas tsuaj nyob rau hauv peb txoj kev loj. Cov txheej passive ua zoo li daim thaiv thiab kho nws tus kheej yog khawb. Alloying cov ntsiab lus xws li chromium, nickel, thiab molybdenum ua rau nws muaj zog tiv thaiv xeb. Smooth nto thiab tu pab cov hlau nyob ci iab thiab tawv. Cov lus hauv qab no qhia tias txhua txoj kev ua haujlwm li cas:
Mechanism |
Kev tiv thaiv xeb thiab kev puas tsuaj |
Txheej Txheej |
Ua ib daim thaiv thaiv uas thaiv xeb, thaum carbon steel rusts ceev. |
Kev Kho Tus Kheej Mechanism |
Cov ntaub thaiv npog rov ua dua yog tias nws raug mob, tsuav yog chromium nyob ntawd. |
Environmental Factors |
Tej yam xws li ntsev, kua qaub, thiab cua sov tuaj yeem ua rau xeb sai dua. |
Xaiv cov qib stainless hlau zoo yog qhov tseem ceeb rau txhua qhov chaw. Cov qib uas tiv thaiv xeb yog qhov zoo tshaj plaws rau thaj chaw uas muaj tshuaj, dej, lossis ntsev. Cov chaw tsim khoom noj khoom haus xav tau cov hlau tsis huv uas tsis hnov mob nrog cov zaub mov. Cov nroj tsuag tshuaj xav tau cov qhab nia uas tuaj yeem ua haujlwm nyuaj. Yog tias koj xaiv qhov tsis raug, koj yuav tau txais pitting, crevice, los yog kev ntxhov siab corrosion.
Stainless hlau rusts tsawg dua li lwm cov hlau, txawm tias nws kub.
Stainless hlau kav ntev thiab xav tau kev saib xyuas me ntsis. Nws kuj yog qhov zoo rau lub ntiaj teb. Cov lus hauv qab no teev cov ntsiab lus zoo:
Tau txais txiaj ntsig |
Kev piav qhia |
Extended durability |
Cov tsev stainless hlau kav ntev li ob zaug ntev li cov hlau carbon hlau. |
Kev kho kom qis dua |
Koj tsis tas yuav kho nws ntau, yog li nws yog qhov zoo rau qhov chaw tsis khoom. |
Optimized hnyav |
Nws muaj zog, yog li koj tuaj yeem siv cov hlau tsawg dua thiab ua kom cov khoom sib zog mus txog 30 feem pua. |
Sustainability |
Cov hlau tsis muaj hlau tuaj yeem rov siv dua thiab pab ua kom lub ntiaj teb huv. |
Cov kev cai pab tib neeg xaiv cov qib stainless hlau zoo rau txhua txoj haujlwm. Qhov no ua kom cov hlau ua haujlwm zoo thiab kav ntev. Stainless hlau yog tshwj xeeb vim nws tiv thaiv xeb, muaj zog, thiab kav ntau xyoo.
FAQ
Dab tsi ua rau stainless hlau txawv ntawm cov hlau tsis tu ncua?
Stainless hlau muaj chromium thiab lwm yam khoom. Cov no tsim ib txheej tiv thaiv uas thaiv xeb. Cov hlau tsis tu ncua tsis muaj cov ntaub thaiv npog no, yog li nws xeb sai dua.
Cov hlau tsis xeb puas tuaj yeem xeb hauv qhov chaw ntsev lossis qhov chaw ntub dej?
Yog lawm, stainless hlau tuaj yeem xeb hauv qhov chaw ntsev los yog ntub dej. Chlorides hauv dej ntsev tuaj yeem rhuav tshem cov txheej txheem tiv thaiv. Xaiv cov qib zoo pab tiv thaiv qhov teeb meem no.
Yuav ua li cas cov neeg yuav tsum ntxuav stainless hlau kom tsis txhob xeb?
Cov neeg yuav tsum tau siv xab npum me me, dej, thiab ntaub mos muag. Lawv yuav tsum zam cov ntaub plaub hlau thiab cov tshuaj ntxuav hnyav. Kev tu tsis tu ncua ua kom cov txheej txheem tiv thaiv muaj zog.
Vim li cas qee cov qib stainless hlau raug nqi ntau dua?
Qib nrog ntau nickel lossis molybdenum raug nqi ntau dua. Cov ntsiab lus no ua rau cov hlau muaj zog tiv thaiv xeb thiab kev puas tsuaj. Cov qib siab dua nyob ntev dua hauv cov chaw tawv.
Puas yog stainless hlau xav tau kev saib xyuas tshwj xeeb tom qab khawb?
Yog lawm. Kev khawb tuaj yeem ua rau cov txheej txheem tiv thaiv tsis muaj zog. Ntxuav thiab polishing pab txheej txheej kho nws tus kheej. Qhov no ua rau cov hlau muaj zog thiab ci ntsa iab.
