Yuav Ua Li Cas Qhia Txog Stainless Steel Los Ntawm Aluminium

Kev Taw Qhia

Txoj kev ntseeg siab tshaj plaws los qhia txog cov hlau tsis xeb thiab txhuas yog los sib piv qhov ceev thiab qhov hnyav, xyuas cov cim khoom siv, thiab paub meej tias cov hlau sib xyaw nrog lub tshuab ntsuas tes lossis kev kuaj hauv chaw kuaj mob thaum xav tau kev txheeb xyuas zoo.Aluminium yog sib dua li cov hlau tsis xeb, thaum cov hlau tsis xeb feem ntau nyuaj dua, tsis tshua muaj cua sov thiab tiv taus kev nkag mus rau saum npoo.

Ib lub hlau nplaum, kev tshuaj xyuas pom, kev kuaj khawb lossis kev kuaj hluav taws xob tuaj yeem muab cov lus qhia pab tau, tab sis tsis muaj ib qho kev sim hauv thaj chaw twg uas qhia txog txhua qib kom raug. Cov hlau tsis xeb Austenitic xws li 304 thiab 316 yuav tsis muaj kev teb magnetic me ntsis, thaum cov hlau tsis xeb ferritic, martensitic thiab duplex feem ntau yog magnetic. Aluminium yog non-ferrous thiab feem ntau tsis yog magnetic, tab sis qhov muaj cov hlau txuas, txheej lossis cov ntxig nyob ze tuaj yeem ua rau kev kuaj hlau nplaum yooj yim yuam kev.

Rau kev yuav khoom lag luam, kev tsim khoom lossis kev sib cais cov khoom siv, lub hom phiaj tsis yog tsuas yog kom paub qhov txawv ntawm cov hlau tsis xeb thiab txhuas xwb. Cov neeg yuav khoom kuj tseem yuav tsum txiav txim siab qhov tseeb qib, kub, tus qauv thiab cov qauv khoom. Yog li ntawd, yuav tsum xaiv txoj kev txheeb xyuas raws li kev pheej hmoo ntawm kev siv tshuab thiab kev lag luam.

Hlau Stainless vs Aluminium ntawm Ib Saib Ib Muag

Cov lej hauv lub rooj no yog cov sawv cev xwb tsis yog cov nqi lav los ntawm kev txiav txim. Cov khoom tiag tiag nyob ntawm qib alloy, kub, cov duab khoom, kub thiab qhov xwm txheej tsim khoom.

1. Tshawb xyuas qhov hnyav thiab qhov ceev

Qhov hnyav feem ntau yog qhov ceev tshaj plaws thiab txhim khu kev qha tshaj plaws uas tsis yog kev puas tsuaj.Cov hlau txhuas muaj qhov ceev li ib feem peb ntawm cov hlau tsis xeb. Yog li ntawd, ob daim khoom khov kho uas muaj tib qhov loj me yuav zoo li txawv heev thaum tuav tes.

Yog xav tau qhov txiaj ntsig zoo dua, xam qhov ceev:

Rau ib lub phaj plaub fab, xam qhov ntim los ntawm qhov tuab × dav × ntev. Rau ib lub pas nrig puag ncig, siv qhov ntsuas txoj kab uas hla thiab ntev. Rau cov yeeb nkab khoob lossis lub raj, rho qhov ntim sab hauv tawm ntawm qhov ntim sab nraud.

Tus nqi ntsuas ze li ntawm 2.7 g/cm³ taw qhia rau cov hlau txhuas ua los ntawm cov hlau sib xyaw. Tus nqi ze li ntawm 7.7–8.1 g/cm³ taw qhia rau cov hlau tsis xeb. Cov seem khoob, cov khoom siv txuas nrog, cov kua sab hauv, zaj duab xis tiv thaiv thiab qhov loj tsis raug tuaj yeem ua rau qhov tshwm sim tsis zoo thiab yuav tsum tau tshem tawm lossis suav nrog.

2. Siv Qhov Kev Ntsuas Hlau Nplaum Kom Zoo

Feem ntau txhuas tsis rub tau ib lub hlau nplaum tas mus li. Cov hlau tsis xeb yuav lossis tsis rub tau ib lub hlau nplaum, nyob ntawm nws tsev neeg hlau:

• Austenitic stainless hlau:304 thiab 316 feem ntau tsis yog hlau nplaum hauv qhov xwm txheej annealed, tab sis kev ua haujlwm txias lossis vuam yuav tsim cov lus teb tsis muaj zog hlau nplaum.
• Ferritic stainless hlau:cov qib xws li 409 thiab 430 yog sib nqus.
• Martensitic stainless hlau:cov qib xws li 410, 420 thiab 440C yog sib nqus.
• Ob chav stainless hlau:feem ntau sib nqus vim nws cov qauv muaj cov theem ferrite tseem ceeb.

Yog tias muaj hlau nplaum rub tau zoo ces yuav tsis paub tias yog hlau txhuas li qub thiab qhia tias yog hlau ua los ntawm hlau. Yog tias tsis muaj hlau rub ces yuav tsis paub qhov txawv ntawm hlau txhuas thiab hlau tsis xeb 304 lossis 316.

Tshawb xyuas ntau qhov chaw vim tias cov hlau txuas, cov phaj thaub qab, cov ntxig thiab cov qauv ze ze tuaj yeem rub lub hlau nplaum txawm tias qhov khoom sab nraud pom yog txhuas los xij.

3. Nyeem Cov Khoom Siv Cim thiab Daim Ntawv Pov Thawj

Ua ntej ua qhov kev sim lub cev, tshuaj xyuas cov khoom siv, pob khoom thiab cov ntaub ntawv rau cov cim qib. Cov hlau tsis xeb yuav raug cim nrog cov npe xws li 304, 304L, 316L, 410, 430, 2205 lossis cov lej UNS thiab EN sib xws. Aluminium yuav raug cim nrog cov hlau sib xyaw thiab cov khoom kub xws li 5052-H32, 5083-H116, 6061-T6 lossis 7075-T651.

Ib qho cim tsuas yog ntseeg tau thaum nws tseem txuas nrog qhov taug qab tau. Xyuas kom meej tias qhov kub lossis tus lej ntau, qib, qhov ntev thiab tus qauv khoom ntawm qhov cim sib xws nrog Daim Ntawv Pov Thawj Xeem Zeb thiab daim ntawv xaj yuav khoom.

Cov kua mem uas luam tawm tuaj yeem hloov pauv tau, cov ntawv lo rau ntawm cov pob khoom tsis raug thiab cov khoom txiav tuaj yeem poob lawv qhov cim qub. Rau cov khoom tseem ceeb, xyuas kom meej tias muaj cim nrog PMI lossis kev kuaj hauv chaw kuaj mob.

4. Piv Cov Nto Zoo Li Cas

Cov hlau tsis xeb uas tsis tau pleev xim feem ntau zoo li tsaus dua thiab ci ntsa iab dua li cov txhuas uas tau ua tiav lawm. Cov txhuas feem ntau muaj cov xim grey lossis dawb-nyiaj sib dua. Cov txhuas uas tau ua tiav lawm kuj tseem yuav pom cov cim txiav ci dua vim tias cov hlau mos heev.

Ib leeg xwb qhov tsos tsis ntseeg tau vim tias ob qho tib si muaj ntau yam tiav:

• Cov hlau tsis xeb tuaj yeem ua tau pickled, 2B tiav lawm, ci ntsa iab, txhuam, hlaws blasted lossis iav polished.
• Aluminium tuaj yeem ua tiav los ntawm zeb, txhuam kom huv, anodized, pleev xim, plated lossis hmoov coated.
• Kev ua qias tuaj ntawm qhov chaw, kev ua kom oxidation, zaj duab xis tiv thaiv thiab teeb pom kev zoo tuaj yeem hloov xim pom tseeb.

Yog li ntawd, yuav tsum siv kev tshuaj xyuas los txhawb qhov hnyav, kev cim lossis kev sim tshuaj ntsuam - tsis yog ua txoj kev txheeb xyuas zaum kawg.

5. Soj ntsuam qhov nyuaj thiab kev puas tsuaj ntawm qhov chaw

Ntau cov hlau txhuas uas siv ntau yam yooj yim dua rau kev txiav, tho, ntxig lossis khawb dua li cov hlau tsis xeb uas siv ntau yam. Cov ntaub ntawv yuav tom tau yooj yim dua rau hauv txhuas, thiab cov cuab yeej ntse yuav tawm qhov cim tob dua yog tias muaj kev nias zoo sib xws.

Qhov kev sib piv no tsis yog qhov xaus. 7075 txhuas uas tau kho cua sov tuaj yeem muaj zog dua thiab nyuaj dua li cov txhuas ntshiab uas tau annealed. Cov hlau stainless austenitic uas tau annealed yog mos dua li cov hlau stainless martensitic uas tau hardened. Qhov tshwm sim kuj nyob ntawm qhov ntse ntawm cov cuab yeej, txheej txheej thiab cov khoom siv tuab.

Kev kuaj khawb los yog kuaj ua ntaub ntawv tsis yog qhov tsis ua puas tsuaj tiag tiag vim nws ua rau qhov chaw puas tsuaj mus tas li thiab tej zaum yuav ua rau cov khoom dai kom zoo nkauj, huv si, pleev xim lossis ua tiav lawm tsis ua haujlwm. Tsuas yog kuaj rau ntawm thaj chaw pov tseg uas tau pom zoo.

6. Piv Txwv Kev Ua Hluav Taws Xob

Txhuas ua hluav taws xob tau zoo dua li cov hlau tsis xeb. Txawm li cas los xij, tsuas yog kov lub multimeter ib txwm rau ob daim tsis sib xws tsis yog txoj kev txheeb xyuas tau zoo. Kev tiv thaiv kuj nyob ntawm qhov ntev, thaj tsam hla, oxide ntawm qhov chaw, lub zog ntsuas thiab qhov sib nrug.

Kev sib piv qhov tsis kam uas muaj txiaj ntsig zoo yuav tsum muaj cov qauv uas muaj cov qauv geometry tswj tau thiab txoj kev ntsuas uas tsim nyog. Rau cov hlau uas tsis kam, kev ntsuas Kelvin plaub-xaim lossis lub ntsuas conductivity calibrated muaj txiaj ntsig zoo dua li lub multimeter ob-probe ib txwm muaj.

Cov cuab yeej siv hluav taws xob kuj siv los cais thiab txheeb xyuas cov hlau txhuas, tab sis lawv tsis ib txwm txheeb xyuas qib tshwj xeeb. Cov txiaj ntsig ntawm kev siv hluav taws xob yuav tsum tau soj ntsuam nrog cov ntaub ntawv sib xyaw, kub thiab qhov nyuaj.

7. Piv Txwv Kev Hloov Kub

Feem ntau txhuas kis tau cua sov sai dua li cov hlau tsis xeb. Yog tias cov qauv muaj tib lub duab, tuab, qhov kub pib thiab qhov chaw zoo ib yam, txhuas feem ntau yuav coj cua sov tawm ntawm thaj chaw kub sai dua.

Kev sim kov tsis tas li yog qhov tsis muaj kev nyab xeeb thiab tsis txhim khu kev qha. Qhov kub ntawm qhov chaw nyob ntawm qhov tuab ntawm cov qauv, thaj chaw sib cuag, txheej txheej, cua thiab txoj kev cua sov. Siv cov thermocouples lossis cov cuab yeej infrared hauv kev sim tswj hwm, thiab nco ntsoov tias qhov sib txawv ntawm qhov chaw emissivity tuaj yeem cuam tshuam rau kev nyeem infrared.

Tus cwj pwm thermal tuaj yeem txhawb nqa lwm txoj kev txheeb xyuas, tab sis nws yuav tsum tsis txhob hloov qhov ntsuas qhov ceev lossis kev tshuaj xyuas cov hlau zoo.

8. Kev Ntsuas Hluav Taws Xob: Muaj txiaj ntsig tab sis muaj kev pheej hmoo siab

Cov hlau tsis xeb uas muaj hlau tuaj yeem tsim cov hluav taws xob pom tseeb thaum kov lub log sib tsoo. Feem ntau txhuas tsis tsim cov hluav taws xob sib tsoo uas muaj hlau ua ke. Qhov sib txawv no yuav pab tus neeg teb xov tooj paub txog qhov sib txawv ntawm cov pab pawg hlau dav dav.

Kev kuaj hluav taws xob muaj cov kev txwv tseem ceeb:

• Nws ua rau qhov khoom puas tsuaj mus tas li.
• Nws tuaj yeem ua rau cov hlau tsis xeb puas tsuaj nrog cov khoom sib tsoo carbon-steel.
• Cov hmoov txhuas me me thiab cov hmoov av tuaj yeem ua rau muaj kev phom sij loj heev rau hluav taws lossis tawg.
• Cov qib stainless sib txawv tuaj yeem tsim cov hluav taws xob zoo sib xws.
• Tus neeg teb xov tooj xav tau kev cob qhia, kev rho tawm, PPE thiab thaj chaw ua haujlwm uas tswj tau zoo.

9. Tsis txhob sim tshuaj lom neeg thiab xeb uas tsis tswj tau

Qhov kev ua haujlwm ntawm cov hlau tsis xeb thiab txhuas txawv vim tias ob qho tib si hlau tsim cov yeeb yaj kiab oxide tiv thaiv. Qhov no tsis ua rau cov kua qaub hauv tsev, alkali, bleach lossis ntsev yog ib txoj hauv kev txheeb xyuas tau zoo.

Kev kuaj tshuaj lom neeg tuaj yeem ua rau cov xim ploj, ua rau cov khoom puas tsuaj lossis ua rau cov khoom puas. Aluminium tshwj xeeb tshaj yog tsis muaj zog rau qee cov kua qaub thiab alkali, thaum cov hlau tsis xeb ua haujlwm nyob ntawm qib, kev sib xyaw, cov ntsiab lus chloride, qhov kub thiab lub sijhawm raug.

Siv tsuas yog txoj kev kuaj lag luam uas tau pom zoo nrog cov neeg ua haujlwm tau kawm tiav, PPE tsim nyog thiab kev tswj cov khib nyiab kom raug. Rau cov khoom muaj nqis lossis cov khoom siv tswj hwm raws li qhov yuav tsum tau ua, kev kuaj xyuas tshuaj ntsuam xyuas muaj kev nyab xeeb dua thiab muaj txiaj ntsig ntau dua.

10. Siv PMI rau Kev Txheeb Xyuas Zoo

Kev Tshuaj Xyuas XRF Tes

Cov khoom siv X-ray fluorescence uas siv tes tuav tuaj yeem paub qhov txawv ntawm cov hlau tsis xeb thiab txhuas thiab txheeb xyuas ntau yam khoom sib xyaw. Cov hlau tsis xeb feem ntau qhia txog hlau, chromium, nickel, molybdenum lossis lwm yam khoom sib xyaw, thaum cov khoom sib xyaw txhuas yog ua los ntawm txhuas thiab tej zaum yuav muaj magnesium, silicon, tooj liab, zinc lossis manganese.

XRF muaj kev txwv rau cov khoom sib dua thiab yuav tsum tsis txhob xav tias yuav tsum tau txheeb xyuas cov ntsiab lus carbon. Nws yuav cais cov tsev neeg alloy dav dav tab sis xav tau lwm txoj hauv kev los cais cov qib uas qhov sib txawv tseem ceeb cuam tshuam nrog carbon lossis lwm yam khoom nyuaj ntsuas.

Kev Ntsuas Hluav Taws Xob Optical Emission Spectrometry

OES tuaj yeem muab cov tshuaj lom neeg tiav ntau dua rau ntau cov hlau sib xyaw thiab tuaj yeem ntsuas cov ntsiab lus uas XRF tes tuav tsis tuaj yeem txiav txim siab tau zoo. Feem ntau qhov kev xeem yuav tsum tau npaj qhov chaw thiab tsim cov cim kub hnyiab me me.

Kev Tshuaj Xyuas Tshuaj Hauv Chaw Kuaj Mob

Rau cov kev tsis sib haum xeeb ntawm daim ntawv cog lus, cov khoom siv siab, cov khoom siv dav hlau, cov ntawv thov kho mob lossis cov khoom siv tseem ceeb rau kev nyab xeeb, yuav tsum muaj txoj kev kuaj mob uas tsim nyog. Txoj kev xaiv yuav tsum ntsuas txhua yam khoom uas tswj hwm los ntawm cov lus qhia tshwj xeeb ntawm cov khoom siv.

PMI lees paub qhov chaw kuaj. Nws tsis tau txheeb xyuas tag nrho cov khoom, cov khoom siv kho tshuab, qhov kub, kev kho cua sov, kev kam rau siab lossis kev ua raws li tus qauv khoom.

Cov Txheej Txheem Txheeb Xyuas Pom Zoo

Vim Li Cas Kev Txheeb Xyuas Kom Yog Qhov Tseem Ceeb

Kev Tsim Kho Vaj Tse

Cov hlau tsis xeb thiab txhuas muaj qhov sib txawv ntawm qhov ceev, qhov tawv, lub zog, qhov qaug zog thiab tus cwj pwm thermal-expansion. Hloov ib yam khoom rau lwm yam yam tsis tau saib xyuas tus qauv yuav ua rau muaj kev khoov ntau dhau, kev thauj khoom ntau dhau, kev sib koom ua tsis tiav lossis kev cuam tshuam thermal.

Kev Vuam thiab Kev Tsim Khoom

Cov hlau tsis xeb thiab txhuas xav tau cov khoom siv vuam sib txawv, kev tiv thaiv, kev ntxuav thiab cov khoom siv sib txawv. Kev sim vuam lawv siv cov txheej txheem tsis raug tuaj yeem ua rau puas tsuaj rau cov khoom thiab ua rau lub Hoobkas ua qias tuaj.

Kev sib txhuam thiab kev sib cuag Galvanic

Thaum cov hlau tsis xeb thiab txhuas txuas rau hauv qhov chaw ntub dej lossis muaj ntsev, qhov xeb galvanic ntawm cov txhuas tuaj yeem tshwm sim. Kev txheeb xyuas cov khoom siv yog qhov tsim nyog kom cov neeg tsim qauv tuaj yeem teev cov khoom cais, cov khoom foob, cov txheej txheem, cov dej ntws thiab cov khoom siv txuas.

Qhov Hnyav thiab Kev Thauj Mus Los

Kev tsis sib haum xeeb ntawm cov hlau tsis xeb thiab txhuas tuaj yeem ua rau muaj qhov yuam kev loj hauv kev ntsuas qhov hnyav, kev xam cov khoom thauj, kev npaj tsa thiab qhov hnyav ntawm cov khoom. Ib lub phaj stainless tuaj yeem hnyav yuav luag peb npaug ntawm lub phaj txhuas nrog tib qhov loj sab nraud.

Tus nqi ntawm cov khoom seem thiab cov khoom siv

Kev faib tawm cov khoom pov tseg thiab tus nqi lag luam nyob ntawm tsev neeg alloy thiab qib. Kev sib xyaw stainless hlau nrog txhuas tuaj yeem txo qhov kev siv rov qab thiab ua rau cov nqi sib sau tsis raug.

Cov Khoom Siv Hlau Sib Xws

SAKY STEEL muab stainless hlau thiab xaiv txhuas khoom daim ntawv rau kev lag luam yuav khoom thiab fabrication yuav tsum tau:

• Stainless hlau Barrau cov kev xav tau ntawm cov hlau puag ncig, tiaj tus, plaub fab xwmfab, hexagonal thiab profile bar.
• Cov Ntawv Hlau Stainless thiab Phajrau cov ntaub ntawv stainless hlau tiaj tiaj thiab txiav kom loj.
• Cov Yeeb Nkab Hlau Tsis Muaj Hlaurau cov khoom tsis muaj qhov sib txuas, welded thiab cov khoom siv tubular.
• Cov Khoom Siv Aluminiumrau cov lus nug txog cov yeeb nkab txhuas, ntawv, kauj, bar thiab hlau txhuas.

Cov Lus Nug Feem Ntau

Yuav ua li cas thiaj paub qhov txawv ntawm stainless hlau thiab aluminium?

Piv qhov hnyav ntawm cov khoom uas muaj tib qhov loj me. Aluminium yog kwv yees li ib feem peb ntawm qhov ceev ntawm cov hlau tsis xeb. Cov cim khoom siv thiab PMI yuav tsum tau siv thaum qib yuav tsum tau lees paub.

Puas muaj hlau nplaum uas qhia qhov txawv ntawm cov hlau tsis xeb thiab cov hlau txhuas?

Yog tias muaj zog sib nqus qhia tau tias cov khoom siv tsis yog txhuas ib txwm thiab tej zaum yuav yog ferritic, martensitic lossis duplex stainless hlau. Tsis muaj kev sib nqus teb tsis yog qhov tsis paub meej vim tias 304 thiab 316 stainless hlau kuj tseem yuav tsis yog hlau nplaum lossis tsuas yog hlau nplaum tsis muaj zog xwb.

Puas yog stainless hlau hnyav dua li txhuas?

Yog. Cov hlau tsis xeb feem ntau muaj qhov ceev ze li ntawm 7.7–8.1 g/cm³, thaum ntau cov hlau txhuas muaj ze li ntawm 2.7 g/cm³. Yog li ntawd, ib feem stainless tuaj yeem hnyav yuav luag peb npaug ntawm ib feem txhuas ntawm tib lub ntim khoom.

Puas yog txhuas hluav taws thaum sib tsoo?

Feem ntau cov txhuas tsis tsim cov hluav taws xob uas muaj hlau ua ke zoo li cov hlau tsis xeb. Kev sib tsoo txhuas tseem tuaj yeem tsim cov khoom kub thiab cov hmoov av uas kub hnyiab tau, yog li ntawd qhov kev sim no yuav tsum tsis txhob ua yam tsis muaj cov khoom siv thiab kev tswj hwm kev nyab xeeb.

Lub multimeter puas tuaj yeem txheeb xyuas cov txhuas thiab cov hlau tsis xeb?

Tsis ntseeg tau nrog kev sim ob-probe yooj yim. Kev tiv taus nyob ntawm cov qauv geometry thiab kev sib cuag. Lub cuab yeej calibrated conductivity lossis kev ntsuas plaub-xaim tswj tau muab cov ntaub ntawv sib piv zoo dua.

XRF puas tuaj yeem qhia stainless hlau ntawm txhuas?

Yog. XRF uas siv tes tuav tau sai sai qhov sib txawv ntawm cov hlau-chromium alloy system ntawm cov hlau tsis xeb thiab cov hlau txhuas thiab txheeb xyuas ntau yam tseem ceeb ntawm cov hlau alloying. Tej zaum yuav xav tau lwm txoj kev thaum kev tswj cov pa roj carbon lossis lub teeb tseem ceeb.

Puas siv tau cov hlau tsis xeb thiab txhuas ua ke?

Lawv tuaj yeem ua ke tau, tab sis yuav tsum xav txog qhov xeb galvanic hauv qhov chaw ntub dej lossis muaj ntsev. Cov ntaub ntawv cais tawm, cov tshuaj pleev xim, cov khoom foob, cov khoom txuas thiab cov dej ntws tsim nyog yuav tsum tau ua.

Cov ntaub ntawv twg xav tau rau kev hais nqe hlau tsis xeb?

Muab qib, daim ntawv khoom, tus qauv, qhov loj me, qhov xwm txheej, qhov chaw, qhov ntau, cov ntaub ntawv tshuaj xyuas thiab qhov chaw mus. Rau cov khoom tsis paub meej, muab cov duab, cov cim, qhov loj me ntsuas thiab txhua daim ntawv qhia PMI lossis daim ntawv qhia chaw kuaj mob.

Thov Kev Tshuaj Xyuas Cov Khoom Siv lossis Khoom