Daim ntawv thov ntawm MIM Technology ntawm Titanium Hlau Powder Txhaj Molding hauv cov khoom kho mob

Daim ntawv thov ntawm MIM Hlau Powder Txhaj Moulding Technology hauv cov khoom kho mob

 

 

Minimally invasive phais forceps

Tuam Tshoj yog ib lub tebchaws uas muaj neeg coob coob, thiab qhov tshwm sim kev laus zuj zus tuaj zuj zus tuaj. Tsis tas li ntawd, kev nrhiav kev lag luam yav dhau los tau ua rau muaj kev puas tsuaj ntau dhau rau ib puag ncig, uas ua rau tib neeg cov teeb meem kev noj qab haus huv ntsib cov teeb meem loj thiab txhawb kev xav tau cov khoom kho mob hauv tag nrho lub zej zog.

 

Yuav ua li cas los txhim kho qhov zoo thiab txo tus nqi ntawm cov khoom kho mob tau yog ib lub ntsiab lus tshawb fawb rau cov kws tshawb fawb hauv tsev thiab txawv teb chaws. Qhov kev thov rau cov khoom siv kho mob yog qhov loj, thiab cov qauv ntawm ntau cov khoom kuj yog qhov zoo heev, yog li yuav tsum muaj cov cuab yeej tsim khoom tshiab los hloov cov khoom qub.

 

Hlau txhaj molding(MIM) yog ib qho tshiab nyob ze net forming thev naus laus zis, uas tuaj yeem tsim cov khoom lag luam nrog cov duab nyuaj hauv cov khoom siv hauv lub sijhawm luv luv. Nws tuaj yeem ua tau raws li qhov tsim nyog ntawm cov khoom siv kho mob thiab dhau los ua txoj kev tsim khoom zoo tshaj plaws.

 

1 MIM technology

1.1 Cov txheej txheem thev naus laus zis ntawm MIM thev naus laus zis

MIM yog ib txoj hauv kev ze rau kev tsim cov txheej txheem tsim sai hauv lub xyoo pua 20th. Cov txheej txheem dav dav yog: hmoov ntxiv binder → sib tov → txhaj tshuaj molding → degreasing → sintering.

Ua ntej, cov polymer thiab hmoov sib tov los tsim cov khoom noj uas muaj fluidity txaus, sib xyaw ua ke thiab ua tau raws li kev txhaj tshuaj raws li qee yam kev mob. Qhov thib ob, qhov tsim nyog txhaj tshuaj kub, txhaj tshuaj siab, txhaj tshuaj ceev thiab lwm yam txheej txheem tsis raug xaiv rau kev txhaj tshuaj molding. Tom qab ntawd, lub binder nyob rau hauv txhaj tshuaj dawb paug yog muab tshem tawm thiab sintered los ua metallurgical bonding ntawm cov hmoov. Thaum kawg, cov khoom tsim nyog tau txais.

 

1.2 Nta ntawm MIM technology

MIM yog ib qho tshiab nyob ze net forming technology rau qhov chaw, uas muab cov yas sib sau tshuab, polymer chemistry, hmoov metallurgy technology, hlau cov ntaub ntawv thiab lwm yam kev qhuab qhia. Nws muaj cov yam ntxwv hauv qab no:

① Cov khoom tsim los ntawm kev siv MIM thev naus laus zis tsis tas yuav tsum tau ua raws li kev ua haujlwm lossis tsis muaj kev ua raws li kev ua haujlwm me me. Nrog rau kev siv cov khoom siv siab, lawv tau nyob ze rau ntawm cov cuab yeej sib sau ua ke thiab tuaj yeem tsim cov kev ua haujlwm siab thiab ua haujlwm zoo li qub.

② Cov txheej txheem ntim khoom noj thiab sintering ntawm cov khoom tuaj yeem simulated los ntawm lub computer, thiab cov txheej txheem tuaj yeem ua kom zoo nyob rau theem pib [1-2] kom tau txais cov qauv tsim zoo tshaj plaws.

③ Thaum lub sij hawm txhaj tshuaj, lub siab ntawm txhua lub ntsiab lus hauv kab noj hniav yog sib npaug, thiab qhov ceev yog sib npaug txhua qhov chaw nyob rau hauv qhov chaw ntawm kev sib xyaw ntawm cov khoom noj, yog li yuav tsis muaj qhov ntom ntom ntom ntom, uas yooj yim kom ua tiav cov khoom loj. .

 

2 Kev siv MIM thev naus laus zis hauv cov khoom kho mob

2.1 Cov khoom kho mob tsim los ntawm MIM technology

Cov khoom siv kho mob feem ntau xav tau kev siv tau zoo thiab kev pab cuam lub neej ntev, thiab hloov tau yooj yim hauv cov qauv thiab cov qauv tsim [3].

Thaum xyoo 1980s, MIM thev naus laus zis tau siv thawj zaug hauv cov khoom siv kho mob, thiab tau dhau los ua thaj chaw loj tshaj plaws ntawm MIM kev lag luam.

Daim duab 1 qhia txog kev faib ua feem ntawm MIM thev naus laus zis hauv kev lag luam sib txawv hauv North America xyoo 2015 [4]. Nws tuaj yeem pom tau tias kev kho mob thiab kev kho hniav tau dhau los ua daim ntawv thov tseem ceeb ntawm MIM hauv North America.

Tam sim no, feem ntau ntawm cov khoom kho mob MIM yog ua los ntawm cov hlau tsis muaj steel, cov hom tseem ceeb yog 316L thiab 17-4PH; Kuj tseem muaj titanium alloys, magnesium alloys, kub, nyiaj, tantalum, thiab lwm yam. [5].

 

2.1.1 Orthodontic bracket

Orthodontic brackets tsim los ntawm Qinhuangdao Zhongwei Precision Machinery Co., Ltd

MIM thev naus laus zis tau siv thawj zaug hauv kev kho mob los ua qee yam khoom siv kho hniav orthopedic. Cov khoom lag luam precision no me me heev thiab muaj biocompatibility zoo thiab corrosion kuj. Cov khoom siv tseem ceeb yog 316L stainless hlau. Orthodontic brackets tseem yog cov khoom tseem ceeb hauv MIM kev lag luam.

Forestadent, ib lub tuam txhab German, tau tsim ob txoj kev sib txuas lus orthodontic bracket nrog MIM thev naus laus zis. Cov neeg kho tshuab tuav lub zog tuaj yeem nce 30 feem pua. Polishing tom qab ib zaug sib sau nrog MIM tuaj yeem txo qhov kev sib txhuam ntawm lub bracket thiab lub koov hlau. Cov khoom no tau lees paub los ntawm BjornLudwig los ua lub luag haujlwm zoo hauv kev phais orthodontic [6].

 

2.1.2 Cov cuab yeej phais

 

Cov cuab yeej phais ua los ntawm Qinhuangdao Zhongwei Precision Machinery Co., Ltd

Cov cuab yeej phais yuav tsum muaj lub zog siab, muaj kuab paug ntshav tsawg thiab tuaj yeem ua tiav cov txheej txheem tshuaj tua kab mob hnyav. Kev tsim qauv yooj yim ntawm MIM thev naus laus zis tuaj yeem ua tau raws li daim ntawv thov ntawm cov cuab yeej phais feem ntau. Tib lub sijhawm, nws kuj muaj qhov zoo ntawm kev siv tshuab. Nws tuaj yeem tsim ntau yam khoom siv hlau ntawm tus nqi qis. Nws yog maj hloov cov tsoos ntau lawm technology raws li lub ntsiab manufacturing txoj kev.

 

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. tau tsim ib hom stainless hlau claw [7] siv MIM technology, uas yog ua los ntawm 17-4PH stainless hlau thiab muaj ib tug ceev ntawm ntau tshaj 7.5g / cm3. Nws tuaj yeem siv los tuav cov khoom hauv tib neeg lub cev thaum phais thiab muaj kev ua haujlwm ntawm tweezers. Nws cov qauv tsim yog qhov nyuaj heev thiab yuav tsum muaj qhov raug ntau lawm.

 

Sintering tom qab tsim nrog MIM thev naus laus zis tuaj yeem ncav cuag qhov siab ntev, thiab tsis tas yuav muaj ntau cov txheej txheem kho tom ntej kom tsis txhob ua rau cov kab thiab cov duab geometric ntawm cov claw.

 

Nws yog ib qho nyuaj rau tsim hom stainless hlau claw nrog complex zoo los ntawm casting los yog machining, uas yuav tsum tau ib tug ntev ntau lawm voj voog thiab siab nqi. Siv MIM thev naus laus zis los tsim nws tuaj yeem txuag tau 60 feem pua ​​​​ntawm cov nqi.

 

Cov cuab yeej siv phais pov tseg yuav tsum tau tsim cov txheej txheem uas tuaj yeem ua ntau yam tsim los ntawm tus nqi qis. Smith Metal Products Co., Ltd. siv MIM technology los tsim cov ncej sib dhos [8], uas yog siv rau hauv hom tshiab ntawm cov cuab yeej siv phais pov tseg. Tus nqi tsuas yog 1/4 mus rau 1/5 ntawm Swiss CNC tshuab cuab yeej, qhov ceev yog 7.5 g / cm3, lub zog tensile kawg ncav cuag 1190MPa, lub zog tawm los 1090MPa, lub elongation yog 6.0 feem pua, thiab qhov siab tshaj plaws hardness yog 33 HRC.

 

Cov txheej txheem tsim khoom ntawm cov khoom no yog raws li hauv qab no: ua ntej, ob qhov 178mm ntev ncej yog tsim los ntawm MIM tshuab, tom qab ntawd ob qhov chaw yog laser welded, thiab tom qab ntawd tom qab machining thiab kev kho cua sov yog nqa tawm. Txhawm rau ua kom tau raws li qhov yuav tsum tau ua ntawm kev ua siab ntev, kev txhaj tshuaj peening thiab passivation kuj tseem yuav tsum tau ua.

 

2.1.3 Lub hauv caug implant qhov chaw

Lub hauv caug pob txha cog qhov chaw tsim los ntawm Qinhuangdao Zhongwei Precision Machinery Co., Ltd

Kev nce qib ntawm MIM thev naus laus zis hauv kev cog qoob loo ntawm tib neeg yog qhov qeeb, feem ntau vim tias cov ntawv pov thawj thiab kev lees paub ntawm cov khoom xav tau lub sijhawm ntev.

 

Tam sim no, MIM thev naus laus zis tuaj yeem siv los tsim cov khoom uas hloov cov pob txha thiab pob qij txha, thiab cov khoom siv hlau siv feem ntau yog Ti alloys [9].

 

Hais txog biocompatibility, Chen Liangjian li al. [10] npaj porous titanium nrog ib tug porosity ntawm 60 feem pua ​​​​ siv MIM technology, thiab npaj gelatin sustained-tso microspheres siv ib qho kev txhim kho condensation polymerization crosslinking txoj kev thiab coated rau saum npoo ntawm ntxeem tau titanium.

 

Cov txiaj ntsig tau pom tias gelatin sustained-tso tawm microspheres coated ntxeem tau titanium tsis muaj cytotoxicity thiab tuaj yeem siv los ua cov khoom siv kho mob zoo.

 

Canadian MaettaSciences Inc tau ua tiav siv Ti-6Al-4V los tsim cov qauv hauv caug rau tib neeg cog [11]. Kev cog qoob loo feem ntau dais siab tom qab nkag mus rau tib neeg lub cev thiab muaj biocompatibility zoo. Tom qab MIM tsim, kub isostatic nias yog nqa tawm, ua raws li kev txhaj tshuaj peening, polishing thiab anodizing kom tau txais kev ua haujlwm zoo dua, txo kev sib txhuam nrog tib neeg lub cev, thiab txhim kho kev sib raug zoo thiab kev pabcuam lub neej.

 

2.1.4 Hearing aid suab yeeb nkab

Cov khoom siv pob ntseg ua los ntawm Qinhuangdao Zhongwei Precision Machinery Co., Ltd

Hnov pab lub raj tsim los ntawm Qinhuangdao Zhongwei Precision Machinery Co., Ltd

MIM thev naus laus zis kuj tuaj yeem siv los tsim cov khoom ntawm ntau yam khoom siv kho mob.

 

Lub Tuam Txhab Indo MIM siv MIM thev naus laus zis los tsim cov cuab yeej siv lub suab nrov rau Phonak tuam txhab hauv lub teb chaws Yelemees [12], uas muaj cov txiaj ntsig ntawm kev txhim kho suab nrov thiab txhawb kev hnov ​​lus.

 

Hom kev hnov ​​​​lus no lub raj nrog cov duab nyuaj tuaj yeem tau txais los ntawm sintering tom qab MIM tsim. Txhawm rau ua kom lub ntsej muag ntawm lub suab raj du, nws tsuas yog yuav tsum tau mus dhau lub iav hlaws xuab zeb blasting txheej txheem tom qab.

 

Qhov ceev ntawm lub raj acoustic yog ntau dua 7.65 g / cm3, lub zog tensile siab tshaj plaws tuaj yeem ncav cuag 480 MPa, lub zog tawm los 150 MPa, elongation 45 feem pua, thiab qhov siab tshaj plaws ntawm qhov tawv tawv 100 HRB. MIM thev naus laus zis tuaj yeem txo tus nqi los ntawm 20 feem pua ​​​​piv nrog cov txheej txheem tsim khoom ua ntej.

 

MIM thev naus laus zis tseem tuaj yeem siv los tsim ntau yam khoom hauv kev kho mob, suav nrog kev cuam tshuam kev kho mob stent, hluav taws xob tiv thaiv ntawm tungsten high-density alloy syringe, microsurgery manipulator, micro twj endoscope qhov chaw thiab tshuaj inhaler [13].

2.2 MIM technology tshiab siv rau cov khoom kho mob

 

2.2.1 Hlau micro txhaj molding

Hlau micro txhaj tshuaj molding, μ MIM) yog ib qho kev tsim technology tsim los ntawm IFAM Research Institute nyob rau hauv lub teb chaws Yelemees, uas yog siv organically siv MIM technology rau kev npaj ntawm qhov chaw nrog qhov ntev mus txog micrometer.

 

Feem ntau hais lus μ MIM tuaj yeem siv los tsim ob yam khoom:

 

① Qhov loj me ntawm micrometer thiab qhov loj ntawm ob peb milligrams;

② Qhov loj me ntawm qhov zoo ib yam li qhov loj ntawm cov tsoos txhaj tshuaj molding ib feem, tab sis qhov loj ntawm cov qauv hauv zos yog mus txog qib micrometer.

Nyob rau hauv xyoo tas los no, micro txhaj molding tau dhau los ua qhov kev tshawb fawb hotspot hauv kev txhaj tshuaj molding. Nrog rau txoj kev loj hlob ntawm cov tshuab niaj hnub ntawm kev ua haujlwm me me, daim ntawv thov ntawm micro txhaj molding yuav ntau thiab ntau dua [14].

Tam sim no, Karlsruha Research Center muaj μ MIM thev naus laus zis tau ua tiav rau kev tsim cov khoom siv micron ntawm cov khoom siv kho mob [15], xws li spectrometer, titration phaj, thiab lwm yam. Cov qauv loj ntawm cov khoom tau mus txog qib micron, thiab Qhov tsawg kawg nkaus phab ntsa thickness yog 50 μm.

Daim duab 2 qhia txog kev siv IFAM hauv lub teb chaws Yelemees μ Lub suture thauj tog rau nkoj [16] tsim los ntawm MIM tshuab rau kev phais mob tsuas yog qhov loj ntawm lub taub hau sib tw.

 

2.2.2 Hlau co txhaj tshuaj molding

Hlau co txhaj tshuaj molding (Co MIM), originated nyob rau hauv 1990s, yog ib tug sandwich hom hmoov txhaj molding tshuab.

Cov txheej txheem no yog ib txhij los yog hauv cov khoom siv txhaj ob cov ntaub ntawv nrog cov yam ntxwv sib txawv rau hauv pwm rau kev txhaj tshuaj molding. Nws tuaj yeem ua ke cov ntaub ntawv hlau thiab cov khoom siv nrog cov khoom sib txawv kiag li hauv tib qhov.

Cov tub ntxhais / plhaub qauv nrog kev ua haujlwm thiab cov duab nyuaj tuaj yeem tau txais los ntawm txoj kev no, thiab cov txheej txheem tom ntej xws li txheej txheej, kev kho cua sov thiab kev sib dhos ntawm cov khoom tsis tas yuav tsum tau ua. Thaum kawg, cov txheej txheem tuaj yeem ua tiav los npaj cov ntaub ntawv ua haujlwm gradient, uas txo cov txheej txheem thiab txo tus nqi.

 

Co MIM thev naus laus zis muab lub tswv yim tshiab rau kev txhim kho thiab tsim cov khoom siv ua haujlwm. Li Yimin et al. [17] tau npaj txhij cov qauv kev cog lus tshiab siv cov pob txha dense cortical cov pob txha pob txha thiab pob txha cancellous nrog sab nraud ntxig thiab cov hws sab hauv.

 

Cov qauv no yog qhov tsim nyog rau kev sib cuam tshuam kev ntxhov siab ntawm cov pob txha cog thiab cov pob txha nyob ib puag ncig. Muaj ntau txheej txheej txheej, qhov porosity ntim piv ntawm cov qauv pore yog 5% ~ 60 feem pua, thiab qhov pore loj tshaj plaws yog 400 μ m.

 

3 Outlook

Raws li BCCresearch qhov kev tshawb fawb kev lag luam tsis ntev los no ntawm cov hlau thiab ceramic txhaj tshuaj molding, lub ntiaj teb kev lag luam tus nqi ntawm cov hlau thiab ceramic txhaj tshuaj molded qhov chaw yuav nce los ntawm 2.5 billion las hauv 2022 mus txog ze li ntawm 3.9 billion las hauv 2028, nrog qhov nruab nrab txhua xyoo kev loj hlob ntawm 11.4 feem pua.

Nyob rau tib lub sijhawm, nrog kev poob qis ntawm kev muag tsheb, MIM thev naus laus zis yuav nkag mus rau hauv kev kho mob, aerospace, electronics thiab lwm yam.

Nyob rau hauv lub tshiab version ntawm European hmoov metallurgy kev lag luam txoj kev qhia, European Powder Metallurgy Association tau taw qhia tias kev lag luam kho mob yog ib feem tseem ceeb ntawm kev txhaj tshuaj molding kev lag luam [18].

Nrog rau kev nthuav dav ntawm kev ua lag luam tas mus li, daim ntawv thov ntawm MIM thev naus laus zis hauv kev kho mob yuav muaj ntau thiab ntau qhov tob, thiab ntau yam ntaub ntawv tshiab thiab cov txheej txheem raws li MIM thev naus laus zis kuj tseem yuav tsim kho tas li.

Ultrasonic scalpel taub hau

Qinhuangdao Zhongwei Precision Machinery Co., Ltd.Tam sim no yog lub chaw tsim khoom muaj zog nrog kev paub nplua nuj hauv kev tsim ntau yam khoom siv kho mob MIM cov khoom. Nyob rau hauv lub neej yav tom ntej, nws tseem yuav mob siab rau ntxiv dag zog rau hlau hmoov txhaj tshuaj molding precision cov khoom hauv kev lag luam khoom siv kho mob.

Ntsiab lus: hlau hmoov txhaj molding; Cov khoom kho mob; Hlau micro txhaj molding; Hlau co txhaj tshuaj molding; Cov cuab yeej phais;