Dab tsi yog cov txheej txheem kev kho saum npoo rau hlau 3D luam ntawv?

1, Mechanical precision machining: los ntawm tsoos craftsmanship mus rau txawj ntse txawj tej yam ntxiv
Mechanical precision machining theem nto ntawm lub cev tshem tawm cov ntaub ntawv. Qhov no yog txoj hauv kev tseem ceeb los ua kom tiav hlau 3D luam ntawv. Qhov tseem ceeb nws ua yog:
phau ntawv polishing
Siv cov khoom siv xws li cov ntawv xuab zeb thiab polishing muab tshuaj txhuam rau cov kauj ruam los ntawm kauj ruam tuaj yeem txo qhov roughness ntawm qhov chaw (Ra tus nqi tuaj yeem mus ntawm 10-20 μm mus rau tsawg dua 0.8 μm). Cov txheej txheem no, ntawm qhov tod tes, nyob ntawm ntau yam ntawm kev ua haujlwm, tsis yog rov ua dua lossis ua haujlwm tau zoo, thiab tsuas yog ua tau zoo rau kev ua cov khoom me me ntawm siab -tus nqi- ntxiv cov khoom xws li hniav nyiaj hniav kub thiab kos duab.
CNC zauv tswj kev sib tsoo
Siv cov cuab yeej siv tshuab CNC thiab cov cuab yeej txiav pob zeb diamond ua ke tuaj yeem ua rau nws tuaj yeem tsim cov khoom nyuaj nrog qhov raug siab heev (± 0.01mm). Tab sis nws yog ib qho nyuaj rau kev ua hauj lwm nrog intricate yam ntxwv zoo li internal flow channels thiab lattice lug vim hais tias cov cuab yeej yog ib qho nyuaj mus cuag. Cov txheej txheem hluav taws xob tawm hluav taws xob (EDM) yog xav tau los ua kom txias qhov hauv cov turbine hniav ntawm cov tshuab dav hlau, piv txwv li.
System rau polishing txiav
Zhejiang Tuobo thiab lwm lub tuam txhab tau tso tawm cov neeg hlau tsis siv neeg polishing uas tuaj yeem tshem tawm cov qauv kev txhawb nqa thiab polish nto tib lub sijhawm siv 3D pom qhov chaw thiab quab yuam tawm tswv yim tswj. Cov kab ke no tuaj yeem ua haujlwm nrog cov neeg hlau los ntawm cov tuam txhab sib txawv, xws li ABB thiab KUKA. Nws yog 3-5 lub sij hawm sai dua li ua tib txoj haujlwm los ntawm tes, thiab nws ua kom qhov chaw tsis raug nyob rau hauv ± 0.05mm. Nws tau siv ntau hauv thaj chaw xws li cov khoom siv kho mob thiab cov khoom siv tsheb.
2. Kev kho tshuaj thiab electrochemical: tswj cov microstructure thiab ntxiv cov haujlwm tshiab
Kev kho tshuaj hloov qhov saum npoo ntawm cov khoom los ntawm kev tawg lossis tso nws. Nws cov haujlwm tseem ceeb yog:
polishing nrog tshuaj
Siv cov tshuaj acidic lossis alkaline los xaiv cov yaj ntawm qhov chaw tuaj yeem tshem tawm qhov tsis zoo xws li spheroidization thiab slag uas tshwm sim thaum luam ntawv. Piv txwv li, tshuaj polishing tuaj yeem ua rau saum npoo ntawm titanium alloy implants tsawg ntxhib, mus ntawm 6-12 μm mus rau 0.2-1 μm, thiab nws tseem tuaj yeem tsim cov txheej txheej passivation kom lawv tiv taus corrosion. Cov txheej txheem no muaj kev cuam tshuam tseem ceeb rau kev kho cov qauv hollow, tab sis kev tswj hwm nruj ntawm kev daws teeb meem thiab qhov kub thiab txias yuav tsum tau zam kom tsis txhob muaj corrosion ntau dhau.
Electrochemical polishing (ECP)
Siv cov khoom siv hluav taws xob ncaj qha hauv cov electrolyte los xaiv kom yaj cov micro protrusions ntawm cov hlau nto. Qhov no yuav ua rau lub ntsej muag zoo li daim iav (Ra tus nqi tuaj yeem yog 0.01 μ m lossis tsawg dua). Ntau yam khoom siv kho mob siv txoj kev no. Piv txwv li, tom qab ECP kev kho mob, qhov roughness ntawm cobalt chromium alloy sib koom tes prostheses raug txo los ntawm 90%, qhov hnav tsis kam yog nce los ntawm peb zaug, thiab cov txheej txheem luam ntawv tuaj yeem raug tshem tawm, ua tau raws li cov kev cai ntawm biocompatibility.
anodizing
Cov txheej txheem electrolytic tuaj yeem tsim cov txheej tuab oxide (5-20 μm tuab) ntawm cov hlau hnyav xws li txhuas alloys. Cov yeeb yaj kiab no tuaj yeem ua kom tawv tawv (txog 500HV) thiab tiv thaiv corrosion. Piv txwv li, tom qab kev kho mob nyuaj anodizing, aviation structural Cheebtsam tuaj yeem tiv taus corrosion rau ntau tshaj 5000 teev hauv 3.5% NaCl ntsev tsuag ib puag ncig. Lub microporous xwm ntawm txheej zaj duab xis kuj tuaj yeem ntub cov roj nplua nyeem thiab txo cov kev sib txhuam coefficient.
3. Txheej thiab Plating Technology: Kev sib xyaw ua haujlwm tiv thaiv thiab kho kom zoo nkauj
Txheej txheej tshuab tsim cov txheej txheem tiv thaiv ntawm qhov chaw los ntawm kev tso ib yam dab tsi ntawm lub cev lossis tshuaj lom neeg. Cov kauj ruam tseem ceeb hauv txoj kev no yog:
PVD sawv cev rau lub cev Vapor Deposition.
Siv lub zog siab - lub zog ion foob pob los muab cov txheej txheem nyuaj xws li TiN thiab CrN rau ntawm qhov chaw ntawm lub substrate. Cov txheej txheem no tuaj yeem txhim kho qhov hnav tsis kam ntawm cov pwm hlau (txuas ntxiv nws lub neej los ntawm 3-5 zaug), thiab cov txheej txheej tuab tsuas yog 1-5 μ m, tsis cuam tshuam rau qhov tseeb ntawm qhov seem. Piv txwv li, ib lub tuam txhab siv PVD los ua 3D luam ntawv pwm thiab tsa lub stamping zaus ntawm 100,000 rau 500,000 zaug.
Electroplating thiab Chemical Plating
Electroplating siv cov tshuaj tiv thaiv electrolytic los tso cov txheej hlau (xws li Ni thiab Cu) rau ntawm qhov chaw, uas ua rau nws tsis tshua muaj corrode thiab ntau conductive. Cov tshuaj plating, ntawm qhov tod tes, siv tus kheej - cov tshuaj tiv thaiv catalytic ua rau saum npoo txawm (xws li tshuaj lom neeg nickel phosphorous alloy plating). Piv txwv li, ib lub tuam txhab ntiav electroless npib tsib xee plating rau 3D luam tooj liab alloy kub dab dej. Qhov no ua rau lawv tiv taus ntsev tsuag rau 1,000 teev es tsis txhob siv 48 teev, thaum tseem muaj thermal conductivity ntawm 200 W / (m · K) lossis ntau dua.
Txau thiab npog nrog hmoov
Cov tshuaj tsuag txheej siv siab -xov cua ntws los nplaum hmoov los yog kua txheej rau saum npoo, tsim cov txheej tiv thaiv uas yog 20-100 μm tuab. Hmoov txau, ntawm qhov tod tes, siv electrostatic adsorption kom sib npaug ntawm cov hmoov, uas ua rau cov txheej tuab thaum nws txias. Txoj kev no ua haujlwm rau cov cuab yeej sab nraum zoov, cov tshuab ua haujlwm, thiab lwm yam xwm txheej. Piv txwv li, ib lub tuam txhab siv cov hmoov txheej los kho 3D-cov qauv hlau luam tawm, uas ua rau lawv tiv taus cov tshuaj tsw qab ntsev rau ntau tshaj 2000 teev.
4. Cov thev naus laus zis tshiab: Laser thiab Composite txheej txheem Lead Innovation: Laser Polishing
Siv lub siab - lub zog laser beams los yaj cov ntaub ntawv saum npoo hauv thaj chaw me me thiab tom qab ntawd ntws cov pas dej molten mus rau theem saum npoo. Txoj kev no tuaj yeem ua haujlwm rau ntawm qhov chaw nkhaus uas nyuaj rau ncav cuag thiab muaj qhov cuam tshuam me me ntawm thaj tsam (tsawg dua lossis sib npaug li 0.1 hli). Piv txwv li, ib lub tuam txhab siv laser polishing rau 3D luam npib tsib xee raws siab - kub alloys, txo qhov roughness ntawm Ra 8 μ m rau Ra 2 μ m thaum tswj cov khoom siv kho tshuab tsis hloov.
Abrasive Flow Machining (AFM)
Txhawm rau txhuam cov yam ntxwv zoo li hla lub qhov thiab cov kab ntws hauv, cov khoom siv viscoelastic abrasive yog ntws los ntawm cov khoom siv sab hauv. Cov txheej txheem no tuaj yeem ua haujlwm hauv qhov chaw uas nyuaj rau mus. Piv txwv li, ib lub tuam txhab siv AFM los ua 3D- luam tawm aviation roj nozzles, uas ua rau lub puab nto tsis ntxhib (los ntawm Ra 16 μ m rau Ra 1.6 μ m) thiab txhim kho cov dej sib xws los ntawm 20%.
Kev sib xyaw ua ke ntawm cov txheej txheem sib xyaw
Siv ntau tshaj ib txoj kev ua haujlwm ua ke los txhawb kev ua haujlwm. Piv txwv li, ib lub tuam txhab siv cov txheej txheem sib xyaw ua ke ntawm "tshuaj polishing + anodizing + PVD txheej" rau 3D luam ntawv titanium alloy implants, uas txo qhov roughness ntawm Ra 0.05 μ m, txhim kho corrosion kuj los ntawm 5 zaug, thiab lub zog sib txuas ntawm cov txheej thiab cov substrate ncav cuag 40MPa, ua tau raws li qhov yuav tsum tau ua.