Raws li cov khoom siv tseem ceeb hauv cov hlau sintering thiab electrolyzer industries, nickel xav tau dav siv nyob rau hauv siab -kawg teb xws li hydrogen zog dej electrolysis rau hydrogen ntau lawm, roj hlwb, siab - kub filtration, thiab electrochemical catalysis. Nws qhov kev ua tau zoo ncaj qha txiav txim siab txog kev ua haujlwm zoo, kev ruaj ntseg, thiab kev pabcuam lub neej ntawm cov khoom siv. Inferior npib tsib xee muaj kev cuam tshuam rau cov teeb meem xws li oxidation thiab shedding, tsis sib xws conductivity, thiab pore blockage, uas tsis tsuas yog nce nqi hloov tab sis kuj yuav ua rau poob loj xws li txo electrolyzer efficiency thiab muaj peev xwm muaj kev nyab xeeb.
Raws li lub tuam txhab ua lag luam nrog ntau tshaj kaum xyoo ntawm kev paub hauv cov hlau sintering, TOPTITECH yuav rhuav tshem 6 qhov loj me kom "txiav txim siab qhov zoo ntawm nickel xav" rau koj niaj hnub no. Los ntawm cov tsos mob yooj yim mus rau kev ua haujlwm tseem ceeb, los ntawm kev sim ua tau zoo mus rau kev sib piv tus qauv, txawm tias cov neeg pib tshiab tuaj yeem pib sai sai, zam kev yuav khoom pitfalls, thiab xaiv tus nqi - zoo nickel xav.
Ua ntej saib qhov tshwm sim: Cov ntsiab lus zais qhov zoo tshaj plaws Intuitive Quality Signals
Cov tsos ntawm nickel xav yog "thawj lub ntsej muag" ntawm nws qhov zoo. Tsis xav tau cov cuab yeej tshaj lij; Kev txiav txim ua ntej tuaj yeem ua nrog qhov muag liab qab thiab kov yooj yim. Tsom ntsoov rau 3 lub ntsiab lus kom tsis txhob pom cov khoom qis dua:
1. Nto xim thiab huv si (Core Foundation)
High- zoo npib tsib xee zoo muaj cov nyiaj zoo ib yam - grey metallic luster ntawm qhov chaw, tsis muaj xim txawv, blackening, yellowing, xeb me ntsis, los yog oxidation me ntsis. Cov xim tag nrho zoo ib yam, tsis muaj qhov dullness lossis qhov ci tsis sib xws - qhov no yog qhov cuam tshuam ncaj qha ntawm cov ntsiab lus nickel tsim nyog, tsis muaj impurities, thiab qis oxidation. Raws li "T / CSTM00689-2023 General Technical Specification rau Hlau Nickel Felt" muab los ntawm CSTM, tsim nyog nickel xav yuav tsum muaj qhov huv si tsis muaj stains lossis pom tseeb oxidative txuas.
Cov npib tsib xee tsis zoo, feem ntau yog vim tsis txaus cov khoom siv purity (doped nrog hlau, tooj liab, thiab lwm yam impurities) los yog oxidation tswj tsis zoo thaum lub sij hawm tsim khoom, yuav muaj ib tug dull nto, me ntsis, xeb, thiab txawm residual roj, plua plav, thiab lwm yam.
2. Cov qauv tsis sib xws ( cuam tshuam rau kev coj ua thiab permeability)
High - zoo nickel xav yog ua los ntawm cov nickel fibers txuas ntxiv los ntawm kev tso ntub dej thiab nqus sintering. Cov fibers yog sib npaug sib npaug, tsis muaj qhov pom tseeb agglomeration, tawg ntawm cov xov hlau, hla xov hlau, lossis cov cheeb tsam sib txawv. Thaum maj mam rub los ntawm tes, lub cev xav tsis muaj delamination lossis fiber ntau shedding, thiab tag nrho cov thickness yog uniform.
Cov npib tsib xee tsis zoo muaj qhov cuam tshuam fiber ntau, cov fiber ntau hauv zos agglomeration, thiab qee qhov chaw tsis sib xws thiab lub teeb - kis. Nws yooj yim rau xaim xaim thiab delamination thaum rub, thiab txawm tias qhov pom tseeb lossis kev puas tsuaj - cov nickel xav tau muaj qhov tsis sib xws ntawm qhov pore, uas yuav ua rau tsis zoo tam sim no conduction thiab tsis sib npaug ntawm cov tshuaj tiv thaiv roj thaum lub sij hawm electrolysis, zoo heev txo electrolysis efficiency.
3. Ntug thiab Flatness (Reflects Production Process Precision)
High- zoo nickel zoo muaj qhov zoo nkauj txiav ntug, tsis muaj burrs, tsis muaj curling, tsis muaj warping, thiab tuaj yeem haum rau lub dav hlau thaum nteg tiaj, tsis muaj wavy deformation lossis hauv zos kev nyuaj siab thiab protrusion; inferior npib tsib xee muaj qhov ntxhib thiab tsis sib xws txiav ntug, uas yooj yim rau curl thiab deform, thiab txawm muaj xoob thiab poob ntug fibers. Nws yog ib qho nyuaj kom haum nrog cov electrolyzers, cov khoom pom, thiab lwm yam thaum lub sij hawm tom qab installation, cuam tshuam rau lub sealing thiab siv cov nyhuv.
Test Core Performance: 3 Cov ntsiab lus no txiav txim siab qhov txiaj ntsig ntawm Nickel Felt
Cov tsos mob tsim nyog tsuas yog lub hauv paus. Tus nqi tseem ceeb ntawm nickel hnov lus nyob hauv nws lub cev, tshuaj, thiab cov khoom siv hluav taws xob, uas tseem yog tus yuam sij rau kev paub qhov txawv "siab- zoo nickel hnov" los ntawm "muaj peev xwm nickel hnov". Tsom ntsoov rau kev ntsuam xyuas 3 cov cim tseem ceeb, uas tsim nyog rau kev siv cov xwm txheej xws li electrolyzers thiab roj hlwb:
1. Cov Khoom Siv Purity: Cov ntsiab lus Nickel Ntau dua lossis sib npaug li 99.0% yog kab hauv qab (Qhov tseem ceeb tshaj plaws)
Cov khoom siv purity ntawm nickel xav ncaj qha txiav txim siab nws cov corrosion kuj, conductivity, thiab kev pab lub neej. High- zoo nickel xav tau yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm "T/CSTM00689-2023 General Technical Specification for Hlau Nickel Felt", nrog rau qhov tsawg kawg nkaus nickel cov ntsiab lus tsis tsawg dua 99.0%. Rau npib tsib xee siv nyob rau hauv high-end electrolyzers, nws raug nquahu kom xaiv cov khoom uas muaj cov ntsiab lus nickel ntau dua lossis sib npaug li 99.6%. Cov ntsiab lus ntawm impurities (hlau, tooj liab, carbon, oxygen, thiab lwm yam) yuav tsum tau nruj me ntsis tswj.
Yuav kuaj li cas? Thaum yuav khoom, koj tuaj yeem nug tus neeg muag khoom kom muab cov ntaub ntawv ntsuas cov khoom (xws li X-ray fluorescence spectroscopy test report) qhia meej txog cov ntsiab lus nickel thiab cov ntsiab lus tsis huv; Yog tias muaj kev tso cai, koj tuaj yeem soj ntsuam qhov microstructure los ntawm lub tshuab ntsuas metallographic. High- zoo nickel zoo tsis muaj qhov pom tseeb impurity hais thiab cov fiber ntau crystallization.
Cov npib tsib xee tsis zoo feem ntau siv cov khoom siv tsawg-nickel purity, doped nrog ntau cov impurities. Nws tsis tsuas yog muaj kev ua haujlwm tsis zoo thiab kev tiv thaiv corrosion, tab sis kuj tseem ua rau oxidative dissolution nyob rau hauv alkaline electrolyzer ib puag ncig, thiab tej zaum yuav paug cov electrolyte, cuam tshuam cov khoom purity (xws li purity ntawm hydrogen hauv hydrogen zog tsim).
2. Pore Yam ntxwv: Porosity thiab Pore Loj Distribution Txiav txim siab daim ntawv thov Scenario Adaptability
Qhov txiaj ntsig tseem ceeb ntawm nickel xav tau yog nws peb -cov qauv ntxeem tau. Porosity thiab pore loj faib ncaj qha cuam tshuam rau cov kua permeability, thaj chaw tshwj xeeb, thiab catalytic efficiency. Cov xwm txheej sib txawv muaj cov kev cai sib txawv rau qhov ntsuas qhov pore (piv txwv li, nickel xav siv hauv dej electrolysis rau hydrogen ntau lawm yuav tsum muaj qhov porosity siab los xyuas kom meej cov roj diffusion, thaum nickel xav siv hauv kev pom xav tau qhov pore loj faib los txhim kho kev cuam tshuam kev cuam tshuam). High- zoo nickel xav tau yuav tsum ua raws li cov cai hauv qab no:
- Porosity: Rau nickel siv hauv electrolyzers thiab roj hlwb, nws raug nquahu kom xaiv qhov porosity ntawm 60% -80%. Cov porosity tsawg dhau yuav cuam tshuam rau cov pa roj / kua ncig, thaum lub siab porosity yuav txo cov neeg kho tshuab lub zog ntawm kev xav;
- Qhov loj me ntawm qhov pore faib: Lub pore loj yog qhov sib xws, tsis muaj qhov pores loj lossis me me txawv txav. Qhov pore loj ntawm nickel xav siv hauv dej electrolysis rau hydrogen ntau lawm yog pom zoo kom tswj ntawm 10-20μm;
- Huab cua permeability: Cov huab cua permeability zoo ib yam yam tsis muaj kev cuam tshuam pom tseeb, kom ntseeg tau tias cov pa roj / kua tuaj yeem ua tau zoo thiab cov tshuaj tiv thaiv tuaj yeem ua tiav.
Inferior npib tsib xee muaj qhov hloov pauv loj hauv qhov porosity, ntxeem qhov pore loj faib, thiab qee qhov pores raug thaiv lossis loj dhau, uas yuav ua rau cov pa tsis sib xws thiab kev poob siab ntau hauv cov electrolyzer, lossis tsis txaus cuam tshuam kev ua haujlwm thaum lub sijhawm pom, ua rau lub neej ntev ntawm cov khoom siv.
3. Mechanical thiab Electrochemical Properties: Qhov tseem ceeb rau kev kho kom haum rau kev ua haujlwm hnyav
Nickel xav tau feem ntau yog siv rau hauv kev ua haujlwm nrog kub, siab siab, thiab muaj zog corrosion. Yog li ntawd, mechanical zog thiab electrochemical zog yog qhov tseem ceeb. High- zoo nickel xav tau yuav tsum tau raws li:
- Cov khoom siv kho tshuab: Lub zog tensile tuaj yeem ncav cuag 5-25MPa, nrog zoo compression resilience. Tom qab rov compression rau 50% strain, nws tseem tuaj yeem rov qab tau ntau dua 85% ntawm nws qhov qub thickness. Nws tsis muaj kev tawg lossis pom tseeb deformation thaum rub los ntawm tes. Lub zog tensile thiab elongation tuaj yeem raug kuaj los ntawm lub tshuab ntsuas thoob ntiaj teb;
- Electrochemical zog: Tsis tshua muaj kev sib cuag, muaj zog stability nyob rau hauv alkaline electrolyte, tsis pom tseeb oxygen evolution los yog hydrogen evolution abnormalities, uas muaj peev xwm txheeb xyuas los ntawm resistivity kuaj;
- Corrosion resistance thiab siab -kub tsis kam: Nws tuaj yeem ua haujlwm ruaj khov rau lub sijhawm ntev hauv oxidizing lossis txo qhov cua siab tshaj 600 degree, tsis muaj qhov pom tseeb corrosion hauv cov tshuaj tsuag ntsev, haum rau kev ua haujlwm hnyav xws li electrolyzers thiab siab - ntsuas kub.
Inferior npib tsib xee muaj cov neeg kho tshuab lub zog tsis zoo, yooj yim tawg thiab deform, thiab muaj kev tiv thaiv siab, uas yuav ua rau kom lub zog noj ntawm electrolyzer. Nws yog nquag oxidation, corrosion, thiab shedding tom qab ntev - siv, ua rau cov khoom tsis ua hauj lwm.
Txuas ntxiv...
