Cov txheej txheem ntau lawm ntawmNitinol flat hlaukoom nrog ob peb kauj ruam zoo sib xws los siv cov khoom tshwj xeeb ntawm cov duab nco alloy. Nitinol, ib qho hlau nplaum ntawm npib tsib xee thiab titanium, nthuav tawm qhov yooj yim heev thiab cov yam ntxwv ntawm lub cim xeeb, ua rau nws yog cov khoom siv hauv ntau yam lag luam. Ntawm no yog ib qho kev piav qhia ntawm cov txheej txheem raug tsim rau Nitinol ca hlau:
Raw Material Xaiv:
Cov txheej txheem pib nrog kev ua tib zoo xaiv cov khoom zoo raw khoom, feem ntau yog npib tsib xee thiab titanium. Qhov tseeb muaj pes tsawg leeg ntawm cov ntsiab lus no tseem ceeb heev kom ua tiav cov khoom xav tau hauv Nitinol alloy kawg.
Melting thiab Alloying:
Cov khoom siv raw uas tau xaiv tau dhau los ua cov txheej txheem melting thiab alloying nyob rau hauv ib puag ncig tswj. Qhov no ua kom cov npib tsib xee thiab titanium sib xyaw kom huv si los tsim kom muaj homogenous alloy nrog rau qhov xav tau muaj pes tsawg leeg. Cov txheej txheem alloying yog qhov tseem ceeb rau kev ua tiav cov yam ntxwv tshwj xeeb ntawm Nitinol, xws li nws cov duab nco thiab superelasticity.
Casting los yog Ingot Formation:
Cov molten Nitinol alloy yog ces muab pov rau hauv ingots los yog billets. Daim ntawv thawj zaug no yog qhov pib rau kev ua haujlwm ntxiv. Cov txheej txheem casting yuav tsum tau ua tib zoo tswj kom muaj kev ncaj ncees ntawm cov hlau muaj pes tsawg leeg.
Kub ua haujlwm:
Cov cam khwb cia Nitinol ingots raug rau cov txheej txheem ua haujlwm kub, xws li kub dov, forging, los yog extrusion. Kub ua hauj lwm yog ua nyob rau hauv siab kub los txhim kho cov khoom lub plasticity, tso cai rau cov creation ntawm ca hlau nrog rau qhov ntev ntawm qhov xav tau. Cov kauj ruam no kuj ua kom zoo dua cov microstructure ntawm cov hlau, ua rau nws cov khoom siv kho tshuab.
Kev ua haujlwm txias thiab txo qis:
Tom qab ua haujlwm kub, cov khoom siv Nitinol dhau los ua cov txheej txheem ua haujlwm txias kom zoo dua qub thiab ua kom cov hlau zoo dua qub. Txias dov los yog cov txheej txheem kos duab yog ua haujlwm los txo cov hlau txoj kab uas hla thaum tuav nws lub tiaj tus profile. Kev ua haujlwm txias qhia txog kev lim dej rau hauv cov khoom siv, txhim kho nws lub zog thiab txhim kho nws cov khoom siv kho tshuab.
Kev kho cua sov:
Kev kho cua sov yog ib kauj ruam tseem ceeb hauv kev tsim nws. Cov hlau yog raug tswj cua sov thiab cua txias mus rau kev teeb tsa nws lub cim xeeb zoo. Cov txheej txheem no, hu ua kev cob qhia lossis kev ua haujlwm, tso cai rau Nitinol "nco" thiab rov qab mus rau ib qho kev qhia tshwj xeeb thaum raug rau qhov tsim nyog stimuli, xws li cua sov.
Kev kho deg:
Nws tuaj yeem raug kho saum npoo los txhim kho nws cov kev tiv thaiv corrosion, txhim kho biocompatibility rau kev siv kho mob, lossis ua tiav cov kev xav tau zoo nkauj. Kev kho deg tej zaum yuav muaj xws li passivation, txheej, lossis lwm yam kev ua tiav tshwj xeeb.
Kev Tswj Xyuas Zoo thiab Kev Xeem:
Thoob plaws hauv cov txheej txheem tsim khoom, kev tswj xyuas nruj nruj yog siv. Ntau yam kev ntsuam xyuas, suav nrog kev kuaj xyuas qhov ntev, ntsuas cov cuab yeej cuab tam, thiab kev ntsuas kev nco, xyuas kom meej tias Nitinol ca hlau ua tau raws li cov qauv thiab cov cai.
Txiav thiab ntim:
Thaum Nitinol hlau tau dhau qhov kev tswj xyuas zoo, nws raug txiav rau hauv qhov ntev thiab ntim rau kev faib khoom. Lub tiaj tus hlau yuav raug spooled lossis txiav rau hauv coils, nyob ntawm tus neeg siv khoom tshwj xeeb.
Kev tsim tawm ntawmNitinol flat hlauNws suav nrog cov txheej txheem tswj xyuas kom zoo, los ntawm kev sib tsoo thiab casting mus rau kev ua haujlwm kub thiab txias, kev kho cua sov, kev kho deg, thiab kev tswj xyuas qhov kawg. Txhua kauj ruam yog qhov tseem ceeb hauv kev siv cov khoom tshwj xeeb ntawm Nitinol rau ntau daim ntawv thov, suav nrog cov cuab yeej kho mob, neeg hlau, thiab ntau yam engineering thiab kev tsim khoom.
