Artificial sib koom thiab cov pob txha hloov cov ntaub ntawv yuav tsum muaj cov yam ntxwv hauv qab no: cov khoom siv lub teeb thiab lub zog siab, biocompatible, corrosion kuj, cov ntaub so ntswg hauv lub cev ntawm cov khoom cog yuav tsis ua rau cov khoom tsis zoo, qaug zog los ntawm kev ntxhov siab ntau dua, kev puas tsuaj thiab lwm yam khoom. . Cov khoom tseem ceeb tshaj plaws ntawm kev cog hniav hlau yog formability, machinability thiab polish. Lawv yuav tsum nyob twj ywm ua haujlwm thaum lub sij hawm lub neej kev cia siab thiab yuav tsis deteriorate nyob rau hauv qaug zog, abrasion, corrosion thiab cuam tshuam loads. Titanium thiab titanium alloys ua tau raws li tag nrho cov kev cai saum toj no. Cov khoom siv dag zog ua ntej tshaj plaws xws li cov hniav hniav hmoov, polypropylene thiab plexiglass yog cov tsis muaj zog, yooj yim tawg thiab tsis zoo biocompatibility. Tom qab hloov mus rau stainless hlau, tab sis qhov kev faib ua feem ntawm stainless hlau yog loj, li ntawm 2 npaug ntawm cov tib neeg cov pob txha, thiab nyob rau hauv lub cev los ntawm lub cev kua dej yuav tshwm sim corrosion thiab puas. Co-Cr alloy kuj yog ib qho khoom zoo heev rau cov pob qij txha, tab sis hmoov tsis, cobalt thiab chromium yog tshuaj lom rau tib neeg. Titanium thiab titanium alloy yog cov khoom siv zoo tshaj plaws rau cov pob qij txha pob txha vim lawv qhov kev faib ua feem me me (zoo ib yam li tib neeg cov pob txha), lub zog siab, kev ua haujlwm zoo thiab zoo heev corrosion kuj.
Cov ntaub ntawv titanium tau teev tseg rau kev hloov pauv kev phais yog cov titanium ntshiab thiab Ti-6Al-4VELI alloy. Tsis ntev los no, cov ntaub ntawv hloov pauv Ti-6Al-7Nb thiab Ti-13Nb1-13Zr, uas muaj kev sib raug zoo nrog tib neeg lub cev, tau pom zoo los ntawm ASTM tus qauv. Nrog titanium li pob txha pob txha, cov hlwb tuaj yeem rov tsim dua tshiab ntawm nws, cov pob txha tuaj yeem loj hlob, titanium thiab tib neeg cov pob txha, epithelium, cov ntaub so ntswg muaj kev sib raug zoo. Txhawm rau txhim kho qhov zoo ntawm cov khoom cog cog nrog tib neeg cov pob txha, bioceramic txheej kuj yog ib txoj hauv kev zoo. Tam sim no, titanium thiab titanium alloy tau siv dav hauv cov pob txha pob txha, pob txha pob txha, pob txha pob txha, pob txha fixator, pob txha pob txha, pob txha pob txha, pob txha pob txha thiab lwm yam. Raws li kev txheeb cais, qhov kev thov txhua xyoo rau titanium alloy dag pob qij txha hauv Suav teb ntau tshaj 5000 teeb, thiab cov txiaj ntsig kev kho mob tau zoo.
Kev siv titanium hauv kev phais orthopedic
Lub elastic modulus ntawm kev kho mob titanium alloy yog ze rau tib neeg lub cev pob txha dua li cov hlau tsis muaj steel, uas yog tsim rau tib neeg orthopedic phais. Hauv kev phais orthopedic, titanium nickel duab nco alloy feem ntau yog siv. Cov kev tshawb fawb tau pom tias NT-SMA yog cov khoom siv tshiab ua ke nrog kev hnav tsis kam, kev tiv thaiv corrosion, lub cim xeeb zoo, pseudo-elasticity thiab suab damping, thiab lwm yam. Nws tau siv dav hauv orthopedics. Ntxiv nrog rau cov pob txha daim hlau, cov koob txhaj tshuaj intramedullary, mandibular internal fixation, scoliosis kho, thiab lwm yam., Shanghai Changhai Tsev Kho Mob tau ua tiav cov qauv tsim thiab kev kho mob ntawm NT-SMA. Xws li NT-patellar ntaus ntawv, Nt-arc diav rawg ntsia thawv, NT-arch ntaus ntawv, NT-flying ntaus ntawv (tsim rau sacral reconstruction), thiab lwm yam., tau ua tiav kev ua tau zoo. Rau kev siv cov ntaub ntawv titanium alloy rau tib neeg lub cev, lub teb chaws tseem tab tom sim tshawb nrhiav, nrhiav kev nyab xeeb thiab txhim khu kev qha tshiab titanium alloy, rau cov txiaj ntsig ntawm tib neeg thoob plaws ntiaj teb.
Kev siv titanium hauv kev lag luam kws tshuaj
Titanium yog siv nyob rau hauv kev lag luam kws tshuaj los ua cov thawv, reactors thiab cua sov. Hauv kev tsim tshuaj, cov cuab yeej siv feem ntau nyob rau hauv kev sib cuag nrog hydrochloric acid, nitric acid, sulfuric acid thiab lwm yam inorganic acids, organic acids thiab lawv cov ntsev. Cov khoom siv feem ntau puas vim yog corrosion, thiab hlau ion kuab paug coj los ntawm steel khoom cuam tshuam rau cov khoom zoo. Cov khoom siv titanium tuaj yeem daws cov teeb meem no. Piv txwv li, penicillin esterification kettle, saccharification tank, chloramphenicol zaj duab xis evaporator, Anaixin reactor, Mitur lim, dimethyl sulfate txias, kua tshuaj lim, thiab lwm yam., tag nrho cov precedent ntawm titanium cov khoom xaiv, kom muaj nuj nqis thiab zoo ntawm cov tshuaj ua kua yog. tas li txhim kho, thiab qhov zoo yog tag nrho raws li cov kev cai ntawm Suav pharmacopoeia.
Kev siv titanium hauv cov khoom siv kho mob
Titanium thiab titanium alloy muaj qhov zoo corrosion kuj, titanium non-toxic, non-magnetic, yog ib qho kev xaiv zoo ntawm cov khoom siv kho mob. Hauv keeb kwm ntawm cov cuab yeej phais, thawj tiam ntawm cov cuab yeej phais feem ntau yog ua los ntawm cov pa roj carbon steel, tab sis raug tshem tawm vim qhov kev ua tau zoo tom qab electroplating tsis tuaj yeem ua tau raws li cov kev cai ntawm kev siv tshuaj kho mob. Lub thib ob tiam ntawm austenitic, ferritic thiab martensitic stainless hlau phais cov cuab yeej, tab sis cov stainless hlau Cheebtsam ntawm chromium tshuaj lom, qhov poob ntawm chromium txheej ntawm tib neeg lub cev muaj ib tug tej yam cuam tshuam, yog li ntawd, lub thib peb tiam - titanium phais cov cuab yeej. Titanium lub teeb yuag ua rau nws tshwj xeeb tshaj yog haum rau microsurgery. Titanium muaj kev tiv thaiv corrosion, zoo elasticity, tsis muaj deformation, tiv thaiv rov qab tu, tshuaj tua kab mob zoo tsis cuam tshuam; Nws tsis yog hlau nplaum thiab tuaj yeem tshem tawm qhov kev hem thawj ntawm kev puas tsuaj rau cov cuab yeej siv hluav taws xob me me thiab rhiab heev, yog li cov cuab yeej phais titanium siv ntau thiab ntau dua. Tam sim no, nws tau siv los ua cov hniav phais, hemostatic forceps, txiab, hluav taws xob pob txha laum, tweezers thiab lwm yam. Hauv cov cuab yeej kho mob, titanium vascular suture koob, sternal suture kab, titanium lim ntawm oxygen lim, ib qho ntawm cov cuab yeej phais mob plawv, tshuab electrocardiogram nrog titanium electrode, hauv vitro kab lis kev cai tshuab nrog titanium ua lub chaw tsim khoom; Cov kev sojntsuam ntawm kev kho mob ultrasonic shredders, cov tswj tsis siv neeg ntawm cov thawv thauj ntshav, thiab cov cuab yeej titanium rau kev phais qhov muag yog txhua yam zoo.
Kev siv kho hniav ntawm titanium thiab titanium alloys
Vim nws zoo heev corrosion kuj thiab tib neeg affinity, thiab xav txog cov hlau tsis haum thiab lub zog tshwj xeeb, titanium yog haum rau daim ntawv thov hauv kev kho hniav. Cov hlau siv hauv kev phais hniav pib nrog amalgam thiab hlau crowns hauv xyoo 1920s, kub, nyiaj thiab palladium alloys feem ntau yog siv rau xyoo 1960, stainless hlau tau los ua cov khoom siv feem ntau siv rau cov cuab yeej siv kho hniav thiab detachable tom qab xyoo 1970, thiab titanium casting. technology tau nrov nyob rau hauv 1990s. Kev kho hniav casting nrog titanium casting tshuab muaj cov yam ntxwv ntawm siab precision, tsis muaj npuas thiab shrinkage qhov. Ntawm cov ntaub ntawv hlau siv los kho cov tib neeg cov ntaub so ntswg, cov elastic modulus ntawm titanium yog ze tshaj plaws ntawm tib neeg cov ntaub so ntswg, uas yuav txo tau cov neeg kho tshuab inadaptability ntawm hlau cog thiab pob txha cov ntaub so ntswg. Lub thermal conductivity ntawm titanium yog qhov qis tshaj ntawm tag nrho cov khoom siv hlau siv rau kev kho hniav. Cov thermal conductivity tsawg tuaj yeem txo cov thermal irritation rau cov tawv nqaij ntawm cov hniav nrog cov yas, uas yog ib qho tseem ceeb heev rau kev kho hniav. Titanium inlays thiab crowns muaj nuj nqi ntawm kev tiv thaiv pulp thiab tsis txhob kub thiab txias khaus. Kev kho hniav titanium nyob rau hauv cov nqe lus ntawm cov khoom, tus thawj yog ntshiab titanium, tab sis nws lub zog yog tsis txaus, nyuaj rau zom, tsis zoo hnav tsis kam, yooj yim los tsim casting tsis xws luag thiab zoo instability. Titanium alloy muaj lub zog siab, feem ntau siv yog Ti-6Al-4V alloy, tab sis vim tias cov hlau V muaj teeb meem rau tib neeg lub cev, siv Nb hloov V, thiab ua tiav Ti{{6} }Al-7Nb alloy, nws muaj kev tiv thaiv corrosion zoo heev, thiab tsis muaj teeb meem rau tib neeg lub cev, tab sis kuj muaj cov yas muaj zog, zoo heev abrasive thiab lwm yam zoo, tau pom zoo los ntawm ASTM cov qauv. Tam sim no, superelastic Ti-Ni alloy yog dav siv hauv cov hniav ncaj. Txij li thaum xyoo 1980s, cov teb chaws tsim kho tau pib kawm txog kev siv titanium hauv kev kho hniav kho hniav, thawj zaug siv hauv kev cog hniav, thiab tom qab ntawd siv rau hauv cov hniav hniav, tus choj choj thiab cov hniav orthodontic hlau. Tam sim no, titanium tuaj yeem siv los ua cov hniav nyiaj hniav kub, cov ntsia hlau ntsia hlau, txuas txuas txuas, porcelain choj, txuas txuas hniav, hniav hniav clamp, hauv paus, txuas cov cuab yeej thiab cov cuab yeej ntxiv dag zog. Yuav luag txhua qhov hlau ntawm cov hniav tuaj yeem ua los ntawm titanium. Kev kawm ntawm titanium thiab titanium alloys tau dhau los ua qhov chaw kub hauv kev kawm ntawm cov hniav hlau. Titanium alloy porcelain hniav tuaj yeem kho cov hniav zoo nkauj thiab ua haujlwm zoo, thiab lub zog siab, zoo nkauj zoo nkauj, xim ruaj khov, du nto, hnav tsis kam, corrosion kuj, yog ib hom kev kho kom ruaj khov, haum rau tag nrho cov hniav ruaj khov, tshwj xeeb tshaj yog nws cov biocompatibility zoo, rhiab rau npib tsib xee ion yog ntau haum rau cov neeg, tau dav siv nyob rau hauv kho hniav.
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