Hauv tsab xov xwm dhau los, TOPTITECH tau qhia thawj ob theem ntawm stainless hlau hmoov sintered lim khoom tsim: raw khoom npaj thiab molding.
Hauv tsab xov xwm no, peb yuav txuas ntxiv mus tshawb txog peb theem kawg ntawm stainless hlau hmoov sintering:
Theem 3: Sintering - Kev hloov pauv thiab rov yug dua tshiab ntawm Microstructure
Sintering yog cov kauj ruam hloov pauv uas muab cov lim nws cov khoom kawg. Lub cev ntsuab yog muab tso rau hauv lub tshuab nqus tsev uas tswj tau los yog kev tiv thaiv huab cua (xws li hydrogen) sintering rauv.
Low-Temperature Zone (≈300-600 degree): Cov ntaub ntawv (yog tias ntxiv) yog volatilized lossis decomposed.
Nruab nrab-Temperature Zone (≈600-1000 degree): Oxides ntawm cov hmoov particle nto raug txo, thiab atomic activation pib nce.
High -Tub kub Sintering Zone (≈1100-1350 degree): Nyob rau hauv lub sij hawm tseem ceeb no, atomic diffusion ntawm cov ntsiab lus ntawm cov hmoov hmoov ua "sintering necks." Kev sib txuas ntawm cov khoom hloov pauv los ntawm kev sib cuag lub cev mus rau metallurgical bonding. Qhov kev ncua deb ntawm cov chaw nruab nrab txo qis, tab sis tag nrho cov ntim shrinkage yog tswj.
| Txheej txheem theem | Qhov kub thiab txias | Cov xwm txheej tseem ceeb | Porosity Trend | Strength Trend | Pore Structure Development |
| Ntsuab lub cev | Chav Temp. | Tom qab CIP tsim | Siab (~ 60%) | Tsawg heev | Thawj hmoov ntim pores |
| Debinding | ~300 - 600 degree | Kev tshem tawm binder | Txo me ntsis | Tseem tsis khov | Qhib pores cleared rau sintering |
| Sintering (Neck Loj hlob) | ~600 - 1100 degree | Atomic diffusion pib | Maj mam txo | nrawm nrawm | Sintering caj dab tsim ntawm cov khoom |
| Sintering (Densification) | ~1100 - 1350 degree | Thaum kawg densification | Stabilizes (~ 30-50%) | Mus txog qhov siab tshaj plaws | ruaj khov, sib cuam tshuam 3D network tsim |
| Yam khoom kawg | Txias rau RT | Microstructure xauv hauv | Tswj Siab | Siab | Ua tiav lub hom phiaj porosity & lub zog |
Theem 4: Performance Realization - Kev piav qhia ntawm Microstructural ntawm High Porosity thiab Siab Dirt Holding Capacity
Tom qab cov txheej txheem sintering tswj tau meej, cov khoom lim lub microstructure nthuav tawm lub xeev zoo:
Tau qhov twg los ntawm High Porosity: Countless hlau hmoov hais yog nrees txuas los ntawm "sintering necks." Lub complex, interconnected peb -sib nqus network ntawm qhov chaw sab laug ntawm cov hais ua tus siab thiab zoo porosity (feem ntau 30%-50%). Cov pores no yog cov channel rau cov kua dej ntws.
Secret of High Dirt Holding Capacity: Cov av muaj peev xwm tuav tsis tau tsuas yog rau qhov loj tag nrho cov pore ntim tab sis, qhov tseem ceeb tshaj, rau nws qhov tob pom mechanism. Cov kab mob tsis yog tsuas yog thaiv ntawm qhov chaw du; xwb, lawv nkag mus rau tortuous, winding pore raws nyob rau hauv lub lim caij. Lawv raug ntes ntawm ntau qhov tob hauv 3D network los ntawm ntau lub tshuab xws li kev cuam tshuam ncaj qha, inertial impaction, thiab diffusion adsorption. Qhov no zoo ib yam li qhov chaw nres tsheb ntau- zaj dab neeg chaw nres tsheb, uas tuaj yeem tuav tau ntau lub tsheb nyob rau hauv tib lub hneev taw piv rau ntau qhov chaw.
Surface Filtration (piv txwv li, mesh screen): Cov kab mob sib kis nyob rau saum npoo, ua rau muaj kev thaiv sai.
Depth Filtration (sintered filter): Cov khoom paug muaj nyob rau hauv lub ntim sab hauv, ua kom cov lim dej ua kom muaj peev xwm thiab txuas ntxiv nws lub neej kev pab cuam.
Xaus
Lub siab porosity thiab siab av tuav lub peev xwm ntawm sintered stainless hlau hlau hmoov lim ntsiab yog cov ntsiab lus ncaj qha ntawm cov txheej txheem nruj encompassing hmoov xaiv, meej formulation, uniform forming, thiab tswj sintering. Txhua kauj ruam yog tsim los ua tib zoo tsim lub microscopic peb -sib nqus network uas muaj zog thiab permeable nrog lub peev xwm siab. Kev nkag siab txog kev taug kev no "los ntawm cov hmoov mus rau lim" tsis tsuas yog tso cai rau peb kom zoo dua rau kev txaus siab ntawm cov khoom tsim kho no tab sis kuj muab lub hauv paus tsim nyog rau kev xaiv cov lim dej uas tsim nyog tshaj plaws raws li cov ntawv thov tshwj xeeb (xws li pom qhov tseeb, qhov xav tau poob siab, thiab tshuaj tiv thaiv) hauv kev siv tswv yim.
