Koj paub ntau npaum li cas txog titanium-nickel alloy?
Nitinol yog ib lub cim xeeb alloy. Lub cim xeeb alloys yog cov hlau tshwj xeeb uas tuaj yeem rov kho lawv cov yas deformation rau lawv cov duab qub ntawm qhov kub thiab txias thiab muaj cov yas zoo.
Ntxiv nrog rau nws cov cim cim xeeb muaj nuj nqi, nco alloys kuj muaj cov yam ntxwv zoo heev xws li hnav tsis kam, corrosion kuj, siab damping thiab superelasticity.
Kev ua tau zoo thiab nta
1, Phase transformation thiab cov khoom ntawm nickel-titanium alloy
Raws li lub npe qhia, npib tsib xee-titanium alloy yog binary alloy tsim los ntawm npib tsib xee thiab titanium. Vim muaj kev hloov pauv ntawm qhov kub thiab txias, muaj ob theem sib txawv ntawm cov qauv siv lead ua, uas yog austenite theem thiab martensite theem. Theem transformation sequence ntawm nickel-titanium alloy thaum txias yog niam txiv theem - R theem - martensite theem. R theem yog rhombic, thiab austenite yog lub xeev thaum kub siab dua los yog thaum lub load raug tshem tawm. Nws yog cubic thiab nyuaj. Cov duab yog qhov ruaj khov. Lub martensite theem yog ib lub xeev ntawm qhov kub thiab txias los yog nyob rau hauv loading. Nws yog hexagonal, ductile, repeatable, tsis ruaj khov, thiab yooj yim rau deform.
2, Cov khoom tshwj xeeb ntawm nickel-titanium alloy
Cov yam ntxwv ntawm lub cim xeeb: Lub cim xeeb zoo yog thaum cov niam txiv theem ntawm qee cov duab txias los ntawm saum toj no qhov kub ntawm Af mus rau hauv qab qhov kub ntawm Mf los ua martensite, lub martensite yog deformed ntawm qhov kub hauv qab Mf, thiab rhuab mus rau hauv qab ntawm Af kub, nrog rau los ntawm qhov rov qab theem transformation. Cov khoom cia li rov qab mus rau nws qhov qub.
3, Kev faib tawm ntawm nickel-titanium alloy hlau Evans thiab Durning kev faib tawm
⑴ Xyoo 1940, kub arch hlau, cobalt-chromium alloy hlau thiab stainless hlau round hlau
⑵ Xyoo 1960, martensitic stabilized alloys: feem ntau yog ua los ntawm nickel-titanium alloys deformed nyob rau hauv lub xeev martensitic. Hom archwire no muaj qhov nruj nruj thiab tuaj yeem tsim kho lub zog sib zog.
⑶ Xyoo 1980, Suav nickel-titanium alloy thiab Japanese nickel-titanium alloy archwires yog austenite-activated alloys: uas yog, lawv pom lub xeev austenite nyob rau hauv ib lub xeev thiab tsis muaj martensite tshwm sim los ntawm kub thaum muab tso rau hauv los yog sab nraum lub qhov ncauj. lub cev xwm txheej.
⑷ Xyoo 1990, martensite-activated npib tsib xee-titanium alloy: uas yog, TTR qis dua qhov kub ntawm qhov ncauj lossis ze rau qhov ncauj qhov ncauj. Nws muaj nyob rau hauv ntau lub xeev ntawm chav tsev kub thiab yooj yim rau deform.
⑸ Qib thermodynamic: Ua kom muaj zog thermodynamic npib tsib xee-titanium alloy: TTR kub siab tshaj qhov kub ntawm qhov ncauj, txog 40 degree. Nyob rau hauv txoj kev no, thaum lub nickel-titanium archwire muab tso rau hauv lub qhov ncauj kab noj hniav, nws tseem nyob rau hauv ib tug multi-dimensional lub xeev thiab cov archwire kuj yog mos.
4, Daim ntawv thov thaj chaw: siv nyob rau hauv superelastic nco alloy xov tooj xov tooj kav hlau txais xov, nuv ntses hooks, nuv ntses pas nrig, me nyuam cov khoom ua si kav hlau txais xov, optical tsom iav thav duab, Bluetooth headsets, pob ntseg hooks, thiab kev kho mob. Nrog rau txoj kev loj hlob ntawm lub sij hawm, nws pib maj mam siv nyob rau hauv cov poj niam cov khaub ncaws rings thiab siv raws li kev tshawb fawb cov ntaub ntawv. Nws nquag tshwm sim nyob rau hauv cov ntaub ntawv soj ntsuam ntawm ntau lub tsev kawm ntawv polytechnic.
5, Cov yam ntxwv ntawm cov khoom: Nws muaj cov khoom siv kho tshuab thiab kev tiv thaiv corrosion, thiab muaj lub cim xeeb tshwj xeeb uas tuaj yeem rov ua lub cim xeeb ntawm lub sijhawm hloov kub.
6, Khoom faib: kub nco thiab elastic nco.
7, Zoo: Super nco, super elasticity, me me, lub teeb yuag, tsis tshua muaj zog, siab zog, meej tswj, AC lossis DC ua kom muaj zog, lub neej ntev, tawm suab.
Ntau yam tsis zoo ntawm titanium-nickel alloy nco hlau:
Specifications: Txoj kab uas hla 0.1mm los yog ntau tshaj * coiled hlau (ncaj hlau)
Qauv: Q/XB1516 Q/XB1520
Hom nab npawb:
TiNi-01 theem hloov pauv kub: 20 degree -40 degree
TiNi-02 theem hloov pauv kub: 45 degree -65 degree
TiNi-SS theem hloov pauv kub: 5 degree -15 degree
TiNi-03 theem hloov pauv kub:<5℃
TiNi-YY theem hloov pauv kub: 33 degree ± 3 degree
TiNiCU theem hloov pauv kub: As －Ms Tsawg dua lossis sib npaug li 5 degree TiNiNb
Theem kev hloov pauv kub: As-Ms<150℃
Lub cev muaj zog ntawm titanium-nickel alloy nco hlau:
Tensile zog: 850 MPa Yield zog: 195-690 MPa Elongation: 25-50%
Cov tshuaj muaj pes tsawg leeg: Ni: 55.4% --56.2% C Tsawg dua lossis sib npaug rau 0.07 H Less dua lossis sib npaug rau 0.0 05 O Tsawg dua lossis sib npaug rau 0.050 N: Tsawg dua lossis sib npaug rau 0.05
Kev siv tus qauv: ASTM-2063-01 ASTM F2063-2000 Cov ntaub ntawv cim xeeb alloy ua cov ntaub ntawv Lub npe hu ua lub cim xeeb hlau yog hais txog cov hlau thiab cov alloys nrog "nco".
Tom qab hom kev nco hlau no yog deformed, nws tuaj yeem rov qab mus rau nws lub xeev yav dhau los nyob rau hauv qee qhov kev cuam tshuam sab nraud, xws li kev kub siab, kub kub, tsis kub, hluav taws xob thiab lwm yam tshwj xeeb. Memory hlau muaj ntau yam kev siv, thiab tag nrho nws cov khoom hloov pauv nrog qhov kub thiab txias. Los ntawm qhov kev xav ntawm microscopic, cov atoms ntawm lub cim xeeb hlau (hlau yog ua los ntawm atoms, tsis yog ions los yog molecules) muaj ib tug tshwj xeeb spatial qauv. Tom qab cov rog sab nraud hloov lawv cov duab macroscopic, nyob rau hauv qee yam mob, lawv cov qauv spatial yuav hloov. Yuav teb.
