Cov txheej txheem

1.InRoduction

2.evolution ntawm sterintered hlau lim

3. Cov khoom siv thiab lawv lub luag haujlwm ua haujlwm

4.Metallurgical science ntawm Sintering Bond

5.Qhov kev coj tus cwj pwm thiab tsim tshuab

6.Fluid muaj zog hauv multi- txheej mesh

7.thermal thiab tshuaj coj cwj pwm ntawm 316L thiab lwm yam alloys

8.com SAMPARIENONE: Ntau {{1} txheej mesh vs. Lwm yam lim

9.Muaj kev tiv thaiv kev zam thiab kev tswj hwm zoo

10.Failure hom thiab kev cia siab engineering

11.Future cov cuab yeej tshawb fawb

12.Cov

1. Pib

Ntau - txheej sintered stainless hlau lim mesh yog dav tau lees paub raws li ib qho ntawm cov khoom lag luam tshaj plaws hauv kev tsim khoom tshiab. Thaum nws cov ntawv thov txuas ntxiv hla dhau kev lag luam- los ntawm cov petrochemicals rau cov petrochemicals rau cov chaw tshawb fawb tom qab nws ua tau zoo tshaj plaws nyob rau hauv {}}}}}}}}}}}}}}} No sub - Tsab ntawv tshawb nrhiav tusEngineering thiab Metallurgical ScienceUas ua ntau - txheej sintered mesh uniniential muaj zog, thermally ruaj khov, thiab me me precise.

Ntawm nws cov tub ntxhais, kev ua tau zoo ntawm ntau - txheej mesh los ntawm kev sib xyaw ntawmWoven Stainless Hlau Txheejthiabdiffusion bonding ntawm high - kub sintering, uas hloov ib pawg ntawm nyias hlau ntaub rau hauv kev sib koom ua ke, nruj, cov qauv sib dhos. To kev nkag siab vim li cas qhov kev ua haujlwm yuav tsum tau tshuaj xyuas metallurgy, thermodynamics, tus cwj pwm kho tshuab, thiab kua dua.

Kab lus no nthuav qhia txog kev tshawb nrhiav cov hauv paus ntsiab lus no.

2. Evolution ntawmSumined hlau lim

Kev lim raws li keeb kwm nyob rau cov khoom siv organic: paj rwb, ntaub, ntawv, thiab cov cerous ceramics. Thaum ua tau zoo rau tsawg {- Cov ntawv thov kub, cov ntaub ntawv tsis muaj lub zog, thiab kav ntev rau high- kev lag luam siab.

Sintered hlau pom tias tau peb lub laj thawj:

Muaj cov txheej txheem xav tau qhov kub siab duatshaj li polymers lossis ntawv tuaj yeem tiv taus.

Tshuaj ib puag ncig los ua kev txhoj puab heev, xav tau corrosion - tsis kam tshaj tawm.

Qhov kev xav tau precision nruj, tshwj xeeb hauv cov kws ua tshuaj thiab cov khoom lag luam semiconductor.

Lub Sijhawm Sijhawm

Multi - txheej txheem sintereded mesh sawv cev ntawm metallurgy thiab woven engineering {}} txoj kev hloov pauv hauv kev tshawb fawb txog kev siv dag zog.

3. Cov khaubncaws sab nraud povtseg thiab lawv cov luag haujlwm ua haujlwm

Cov txiaj ntsig kev txhais ntawm ntau - txheej Mesh yog nws cov qauv ntawmNtau Yam Woven Txheej, txhua tus tsim rau cov hom phiaj engineering. Kev npaj ntawm cov khaubncaws sab nraud pov thawj txiav txim siab lub lim lim kawg, porequility, pore cov kev sib txuam, thiab kev pom zoo.

Ib tus neeg raug 5-txheej qauv suav nrog:

1.Kev Tiv Thaiv Tiv Thaiv (Txheej)

2.Tsis

3.Precision tswj Txheej (Filtration Txheej)

4.Txhawb Txheej

5.Qhov Cuab Lub Zog Txheej (Hauv Qab)

3.1 Lub luag haujlwm ntawm txhua txheej

1. Tiv thaiv txheej

Ntxhoo ntxig; tiv thaiv kev puas tsuaj rau cov khaubncaws sab nraud povtseg

Withstands tshuab kev ua paug

Ua kom muaj kev pabcuam ntev ntev hauv kev tawm tsam

2. Cov Txheej

Cov Neeg Kho Tshuab

Tiv thaiv kev ntxhov siab rau txheej txheej precision

Txo kev pheej hmoo ntawm pog deformation

3. Qhov tseeb (Pom) txheej

Txhais cov ntsuas ntsuas Micron (0.2-120 μm

Tseem ceeb tshaj plaws hauv kev txiav txim siab pom qhov tseeb

Yuav tsum nyob ruaj ntseg nyob rau thaum sinininging

4. Txhawb Txhuas Txheej

Ib coarse, tuab mesh uas tsis kam compression

Tiv thaiv kev sib tsoo hauv qab siab plhaw siab

5. Qhov cuab lub zog txheej

Tswj cov tiaj tiaj thiab cov qauv nruj

Ua hauj lwm ua lub hauv paus rau welded lossis frames lim

3.2 Cov lus: Raug kev sib raug zoo ntxaij raug

4. Metallurgical science ntawm Sintering Bond

Sintering yog cov txheej txheem tseem ceeb uas hloov tsib lossis ntau txheej ntawm woven mesh rauib monolithic qauvCov. Kev tshawb fawb tom qab sinining yog rawsAtomic Diffusion.

4.1 Dab tsi tshwm sim thaum Sintering?

Lub sijhawm sintering, stainless hlau txheej yog muab tso rau hauv qhov cub (feem ntau nqus dej lossis hauv roj av) thiab ua kom sov65-80% ntawm alloy lub taw tes melting.

Rau316L stainless hlau:

Melting taw tes ≈ 1370-1400 degree

Sintering kub ≈ 1050-1250 degree

Ntawm qhov kub no:

• Atoms midrate hla cov ntsiab lus sib cuag hlau (diffusion bonding)

Qhov no tsim tau metallurgical Bonds tsis tau melting cov hlau.

• Cais thaj tsam ib nrab

Qhov no zoo kawg nkaus nce tshuab zog.

• Porosity dhau los ua ruaj khov thiab hnav khaub ncaws

Qhov tseem ceeb rau kev ntsuas micron pom kev.

4.2 Kev Diffusion Mechanisms

Sintering Kev Ntseeg ntawm Peb Theem Phaj Diffusisms:

1.Nto Diffusion- Atoms tsiv hla cov hlau nto

2.Lattice diffusion- Atoms migrate los ntawm cov hlau crystal lattice

3.Lis Ciam ciam Txhuam Diffusion- Atoms tawm mus raws cov ciaj ciam

Cov txheej txheem no ua cov tawv khov - Lub xeev cov ntawv cog lus uas tuaj yeem tiv taus:

Qhov Kub Siab

Kev siab siab

Kev co

Kev caij tsheb kauj vab thermal

Kev Siv Tshuaj

4.3 Vim li cas diffusion bonding yog zoo dua rau vuam

Sintering yog cov txheej txheem sib raug zoo uas khaws ciaob qho tib si tshuab lub zog thiab pore kev sib dhos.

5. Kev Nyuaj Siab thiab Cov Neeg Kho Tshuab Tsim

Cov kev ua tau zoo yog ib qho ntawm cov lus txhais ntawm sintered ntau {{} txheej mesh.

5.1 Tensile thiab lub zog compressive

Qhov ntau - txheej qauv txheej txheem ntau dua cov khoom siv:

Tensile lub zog nce 2-3 × piv rau ib mesh

Compressant load muaj peev xwm nce 4-5 ×

Shear lub zog tiav zuj zus li sib npaug rau cov ntawv hlau

Qhov no pub sintered mesh kom tiv taus:

Siab plawg pressures

Tam sim no Siab Spikes

Rov ua dua tshiab Cycling (qaug zog tsis kam)

5.2 Kuj tsis yog deformation

Tsis zoo li tib - txheej mesh, multilayer sintered mesh resistic:

HLAU TXIAB

Daim ntaub

Dimiple

Kev sib tsoo hauv siab

Qhov kev ruaj khov no yog qhov tseem ceeb rau kev ua kom pom tseeb.

5.3 Pleite Qis Qauv (Mloog poj niam) pom

Cov kws ua engineers siv FEM rau qauv:

Thauj Khoom

Thermal nthuav dav

Siab Poob

Floue marles

Cov qauv pom tias ntau {{{}}} txheej sintered mesh txwv tsis pub muaj kev ntxhov siab ntau dua li lwm yam me me me me dua li lwm yam me me me dua li lwm yam me me me dua li lwm yam me me me me dua li lwm yam me me me dua li lwm yam me me me dua li lwm yam me me me dua li lwm yam me me me dua li lwm yam me me me dua li lwm yam me me me dua li lwm cov meters

6. Flucamics nyob rau hauv multi- txheej mesh

Kev ua kom pom kev ua tau zoo yog tob tob rau cov kua dej muaj kua dej. Cov kws ua engineers soj ntsuam:

Txaus tus nqi

Siab Poob

Txojlus teeb ua

Laminar vs. Burnent Flow

6.1 Darcy txoj cai thiab permeability

Ntau - txheej saws sintered mesh coj raws li aPorous nruab nrab, Yog li ntws tau qauv siv Darcy txoj cai:

Q =} - ka (Δp / μl)

Qhov twg:

Q =} txaus tus nqi

k =} permeability

{=} kua dej viscosity

L =} media dickness

Cov txheej txheem txheej txheem nce permeability thaum tswj xyuas pore precision.

6.2 Lub Siab Poob Lawm

Lub siab poob nyob ntawm:

Txheej Txheej Txheem

Kev Ntsuas Micron

Porosity

Kua viscosity

Qhov Zoo:

Txo qhov siab poob qis dua cov lim hlau

Ntau ruaj khov tshaj li woven mesh

Paub tseeb thiab zoo ib yam

6.3 txhaws tus cwj pwm

Vim tias tus qauv tsis yeem:

Pores tsis vau

Flow txoj kev nyob ruaj khov

Mesh Txhawb Nqa Cov Khoom Siv Yooj Yim

Qhov no tseem ceeb txuas lub neej.

7. Thermal thiab tshuaj coj cwj pwm ntawm cov hlau stainless alloys

7.1 thermal ua tau zoo

316L thiab 304l stainless hlau feem ntau muaj:

7.2 Tshuaj Txhuj tiv thaiv

316L yog tshwj xeeb tshaj yog tiv:

Tus kab chlorides

Acids

Tus alkalis

Pa ncho

Oxidatio

Qhov no tso cai rau multi {- txheej sintered mesh rau kev khiav lag luam hauv thaj chaw uas cov polymers, ceramics, thiab hlau hmoov.

8. Microstructure: pore geometry thiab faib

Microstructure hais txog kev ua tau zoo.

Cov yam ntxwv tseem ceeb:

Uniform pore loj faib

Kev muag khoom muaj tseeb tsis pub dhau ± 10%

Ruaj khov nyob rau hauv thermal thiab tshuab thauj khoom

Ncaj -}} los ntawm cov kab rau cov kev vam meej

Piv rau cov hmoov hlau, ntau - txheej Mesh muajNtau yam kwv yees pore geometry, muab nws zoo nkauj lim.

9. Kev Sib Piv Cov Lus: Ntau- txheej mesh vs. lwm yam xov xwm

10. Kev tsim thev thiab tswj kev zoo

QC cov tswv yim suav nrog:

1.Npuas taw tes kuaj(pore loj pov thawj)

2.Helium pas dej kuaj

3.Metallographic cross -} Tshooj

4.Kev Kuaj Tensile / Compression Kev Tshuaj Ntsuam

5.Flatness thiab tuab ntsuas

6.Flow Tus Nqi Ntsuas

Precision QC yog qhov tseem ceeb kom lav cov kev sib txuam ntawm cov qauv sintered.

11. Ua tsis tiav cov qauv thiab kev ntseeg tau engineering

Txawm tias cov ntaub ntawv siab tshaj muaj cov qauv tsis ua tiav.

Qauv tsis tau ua hauj lwm:

Nrog tsim nyog tsim, ntau {- txheej secintered Mesh Cov Kev Ua Haujlwm Tsis Txaus Siab Lub Neej.

12. Yav Tom Ntej Cov Khoom Siv Kev Tawm Tsam

Cov Lus Qhia Tawm:

1.Nano {{{}} txheej sintering

2.Additive - Studured Mesh Cov Qauv

3.Hybrid Hlau - conhamic sintered composites

4.Sace sintered lim nrog embedded sensors

5.- khiav haujlwm sintereded mesh

Cov ntaub ntawv pom tau hloov zuj zus mus rau kev txawj ntse, precision, thiab muaj kev ruaj ntseg.

Nyeem ntxiv:Dab tsi yog mult - txheej sintered stainless hlau lim mesh?

13. Xaus

Nkag siab lub ntsiab lus armering qab qab ntawm multi-}}}}}}}}}}}}}} ectshts vim li cas nws ua yog li ntseeg tau nyob rau hauv cov chaw muaj kev lag luam uas xav tau. Nws lub zog tshwj xeeb, Pore ruaj khov, thermal kuj, thiab huv tuaj ncaj qha los ntawm kev tshawb fawb ntawm ntau}}} txheej txheej txheem thiab diffusion ua ntawv.

No sub -}} tsab xov xwm tsim tsa lub hauv paus:

Metallurgy

Kev Nyuaj Siab Tus cwj pwm

Yam dej

Thermal thiab tshuaj lom neeg

Kev tsim

Kev ntseeg tau Engineering

Tom ntej no sau - Cov lus yuav nthuav mus rau hauv cov ntawv thov, cov qauv kev tsim kho, kev lag luam, thiab cov khoom siv sib piv.