Puas muaj qhov sib txawv ntawm txoj kev tshem tawm cov hmoov hlau rau cov hlau luam tawm los ntawm cov khoom sib txawv?

Ib, Lub hauv paus ntsiab lus ntawm cov txheej txheem tshem tawm particle yog nyob ntawm qhov zoo ntawm cov khoom.
1. Titanium alloy: kev ua haujlwm siab xav tau kev tiv thaiv los ntawm ib puag ncig inert
Thaum titanium alloys (xws li Ti6Al4V) tau kub, lawv tuaj yeem hnov ​​​​mob nrog oxygen thiab nitrogen los ua ib qho nyuaj, nkig oxide txheej. Qhov loj me ntawm nws cov hmoov feem ntau khaws cia ntawm 15 thiab 53 μm, txawm li cas los xij yog tias muaj ntau cov hmoov me me (<20 μm), it can clump together and leave behind more residue. When taking out powder, you should use an inert gas protection system, such the Tuobo TCB-100 explosion-proof powder cleaning equipment. This system replaces the air within the box with nitrogen or argon gas to keep the oxygen level below 50ppm and stop the powder from oxidising and catching fire on its own. To clean porous structure implants like intervertebral fusion devices, you should use 0.5–0.6MPa compressed air to wrap the same type of metal particles. This will ensure that the rate of powder removal inside the pores is at least 99.5%.
2. Stainless hlau: Nws tsis xeb, yog li nws tuaj yeem ntxuav nrog tshuaj.
316L stainless hlau hmoov muaj xws li chromium nyob rau hauv nws, uas ua rau nws resistant rau tshuaj corrosion thiab tso cai rau nws mus ntxuav nyob rau hauv ob peb kauj ruam. Piv txwv li, qhov no yog yuav ua li cas ib lub dav hlau chaw tsim tshuaj paus ntxuav cov hniav ntawm lawv cov cav: siab - lub dav hlau dej siab (15 MPa) kom tshem tawm cov hmoov av ua ntej, ces cov tshuaj ntxuav alkaline (pH=11) steeped rau 2 xuab moos kom yaj cov organic teeb meem, ces ultrasonic tu (40kHz, 10 feeb) kom co tawm cov dej ntshiab, thaum kawg 8℃pores. ). Txhawm rau kom tsis txhob pitting corrosion, cov tshuaj ntxuav yuav tsum muaj cov tshuaj chloride ion tsawg dua 25ppm rau qhov tseeb.
3. Aluminium alloy: Qhov qis melting point ua rau nws nyuaj los ntxuav mechanically.
AlSi10Mg aluminium alloy melts ntawm tsuas yog 577 degree, thiab kev vibration tu ib txwm tuaj yeem hloov pauv cov duab ntawm qhov chaw. Lub tuam txhab EOS tau los nrog "mos scraper + low-kub tshuab" txheej txheem. Thaum lub sij hawm cov hmoov nteg, ib tug silicone scraper (kub kuj tsawg tshaj li los yog sib npaug zos rau 80 degree) yog siv los txo splashing. Tom qab luam ntawv tiav lawm, CO₂ daus dav hlau ntxuav (kub -78.5 degree) yog siv los tshem tawm cov hmoov los ntawm cov khoom muaj feem cuam tshuam thaum tsis txhob thermal stress concentration. Txhawm rau kom cov phab ntsa nyias nyias los ntawm kev sib cais, xws li radiator fins, lub tshuab siab yuav tsum khaws cia qis dua 0.2 MPa.
2, Hom qauv tsav ntau hom kev tshem tawm cov tshuab.
1. Cov qauv ntxeem tau: txau rau hauv ib qho kev taw qhia thiab hoover adsorption ua haujlwm ua ke
Cov txheej ntxeem tau ntawm orthopedic implants, nrog rau cov khob acetabular, feem ntau tsawg dua 3 hli tuab, yog li lawv yuav tsum tau ntxuav los ntawm ntau lub kaum ntse ntse. Txau rau rau qhov sib txawv (0℃, 60℃, 120℃, 180℃, 240℃, thiab 300℃) ntawm cov tsev uas tuaj yeem pom los ntawm yuav txo qis cov hmoov seem ntawm 8.2mg / cm² rau 0.3mg / cm². Lub tshuab nqus tsev adsorption yuav tsum tau siv ua ke nrog cov qauv uas tsis permeable. Ib lub tuam txhab kho mob, piv txwv li, siv lub tshuab nqus plua plav tsis zoo (nrog lub tshuab nqus tsev kawm ntawv ntawm -80kPa) thiab cov khoom siv uas tuaj yeem tig 360 degrees kom tau txais cov hmoov rov qab ntawm 98.7%.
2. Nyias- cov qauv phab ntsa: ntxuav nrog kev ntxhov siab tsawg thiab kev txhawb nqa rau cov qauv
Lub dav hlau cav hniav feem ntau tsawg dua 1 hli tuab, thiab thaum tshem cov hmoov, cov neeg kho tshuab kev ntxhov siab yuav tsum tau khaws cia rau hauv daim tshev. Lub tshuab "electrostatic adsorption + airflow guidance" thev naus laus zis siv los ntawm GE ua haujlwm zoo li no: cov txheej txheem txheej txheem yog muab tso rau ntawm lub tshuab luam ntawv, thiab cov hmoov lo rau txheej txheej los ntawm electrostatic teb. Tom qab ntawd, laminar airflow (ntws tus nqi ntawm 0.5m / s) yog siv los tshuab raws cov hniav nto kom nws tsis txhob vibrating. Rau cov txheej txheem sab hauv cov kab noj hniav, nws yog ib qho tsim nyog los tsim cov khoom sib txawv. Piv txwv li, ib yam ntawm cov turbine disc muaj ib tug core ncej uas yuav raug tshem tawm. Qhov no pab cov hmoov tawm los ntawm kev siv lub zog centrifugal uas cov tub ntxhais ncej tsim thaum nws tig.
3. Cov qauv ntawm lub cev: Zoo rau kev rov ua dua tshiab thiab khaws cov hmoov av
Thaum tshem cov hmoov los ntawm cov khoom loj xws li lub tog raj kheej lub cav, koj yuav tsum nrhiav kev sib npaug ntawm kev ua kom zoo thiab tiv thaiv ib puag ncig. Lub Tuobo ultra-loj hmoov ntxuav tshuab (load 1000kg) siv kev sib xyaw ua ke ntawm "kev tshuaj ntsuam kev vibration + airflow classification" los ntxuav cov hmoov. Ua ntej, lub tshuab vibration (ntau zaus 25 Hz) loosens cov hmoov, thiab tom qab ntawd lub tshuab hluav taws xob sib cais (txiav qhov loj me 5 μm) sau cov hmoov siv tau. Thaum kawg, lub hnab lim (filtration efficiency 99.99%) catches ultrafine plua plav. Txoj kev no ua tau raws li PM2.5 emission cov cai thiab rov ua dua 95% ntawm cov hmoov.
3, Kev pheej hmoo ntawm cov txheej txheem txhawb kev txhim kho ntawm cov khoom siv tshem tawm cov khoom siv.
1. Kev pheej hmoo ntawm cov hmoov oxidation: kaw - lub voj rov ua dua tshiab
Tom qab siv titanium alloy hmoov 15 zaug, cov pa oxygen concentration yuav nce ntawm 0.08% mus rau 0.25%. Qhov no yuav ua rau qhov chaw 40% tsis muaj zog ntawm kev qaug zog. Siemens tau tsim lub kaw - voj hmoov tswj qhov system uas siv cov roj inert kom cov kav xa dej nyab xeeb. → Siv cov txheej txheem laser diffraction kom pom qhov loj ntawm cov hmoov hauv online (precision 0.1 μm) → cua ntws sib tsoo thiab tev tawm kev kho cov hmoov nrog cov txheej txheej oxide thickness ntau tshaj 2 μm → rov- tshuaj ntsuam xyuas (150 μm sieve) thiab rov siv dua. Cov tshuab no nce cov hmoov siv rau 92% thiab ua kom cov pa oxygen concentration ntawm cov khoom kom tsawg dua lossis sib npaug li 0.13%.
2. Kev pheej hmoo ntawm kev ntxhov siab seem: kev kho cua sov ua ke rau kev tshem tawm cov hmoov
Tom qab luam ntawv, qhov seem seem nyob rau hauv npib tsib xee -raws li alloy Inconel 718 tuaj yeem siab li 300 MPa. Yog tias koj tsis thauj cov kev vibration kom zoo thaum tshem cov hmoov, koj tuaj yeem yooj yim tawg. Ib lub tuam txhab aerospace siv cov txheej txheem "tsawg-kub hmoov tshem tawm + kev laus" txheej txheem. Ua ntej, cov khoom tau txias hauv cov kua nitrogen ntawm -196℃kom tso tawm 50% ntawm cov kev ntxhov siab seem. Tom qab ntawd, lub tshuab qis qis ntawm 0.3MPa yog siv los tshem cov hmoov. Thaum kawg, kev laus kev kho mob ntawm 720℃rau 8 teev yog ua kom txo qis kev ntxhov siab ntau dua, kom tsawg dua 50MPa. Qhov feem pua ​​​​kev tsim nyog rau cov khoom tau nce los ntawm 78% mus rau 95% ua tsaug rau txoj hauv kev no.
3. Biosafety txaus ntshai: cov cai rau kev ntxuav cov khoom siv kho mob
Orthopedic implants yuav tsum ua tau raws li ISO 10993 biocompatibility cov qauv, thiab thaum cov hmoov ploj lawm, lawv yuav tsum muaj peev xwm:
Hmoov seem: 0.1mg ib thooj
Endotoxin los ntawm cov kab mob<0.25EU/mL
Qib 1 lossis qis dua rau cov tshuaj tiv thaiv cytotoxic
Qee lub tuam txhab kho mob siv peb - txheej txheem ntxuav:
Yaug nrog dej huv (conductivity tsawg dua lossis sib npaug li 1.3 μ S / cm)
Soak hauv 75% ethanol rau 30 feeb ntawm 60 degree.
Sterilization nrog ethylene oxide (800 mg / L, 6 teev)
Tom qab kev sim, cov txheej txheem no tuaj yeem lav tias txhua yam khoom muaj kev nyab xeeb rau biosafety.