ASTM F67 Titanium Alloy Kev Ua Haujlwm Txuj Ci
ASTM F67 yog tus qauv kev qhia tshwj xeeb rau titanium thiab titanium alloy cov ntaub ntawv siv hauv kev cog hniav phais. Tus qauv yog thawj zaug hauv xyoo 1972 thiab txij li tau hloov kho ob peb zaug los xyuas kom meej tias nws npog txhua yam ntawm cov khoom siv, kev ua thiab kev ua yam ntxwv. ASTM F67 yog tus qauv tsim los ntawm American Society for Testing and Materials, uas teev cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, cov txheej txheem tsim khoom thiab cov cim kev cai ntawm cov ntaub ntawv ntshiab titanium. Cov qauv no feem ntau yog siv rau hauv kev tsim cov khoom siv kho mob thiab cov tshuaj inhalants vim cov ntshiab titanium muaj biocompatibility zoo heev thiab yuav luag tsis muaj kev cuam tshuam rau tib neeg cov ntaub so ntswg, yog li nws tau siv dav hauv kev kho mob.
Chemical composition yuav tsum:
ASTM F67 qhia txog cov tshuaj muaj pes tsawg leeg ntawm titanium ntshiab (Qib 1, Qib 2 thiab Qib 3), suav nrog cov ntsiab lus siab tshaj plaws ntawm hlau, oxygen, nitrogen, carbon, hydrogen thiab lwm yam khoom.
ASTM F67 yog tus qauv uas qhia meej txog kev siv cov deformed titanium alloys ua cov khoom siv phais.
Cov qauv no suav nrog ntau qib titanium alloy, suav nrog Qib 1, 2, 3 thiab 4. Cov qib no tau raug xaiv rau lawv cov biocompatibility thiab haum rau kev siv kho mob. Cov alloys no tshwj xeeb tshaj yog siv rau hauv kev cog hniav phais xws li prosthetics thiab pob txha cog. Tsis tas li ntawd, lawv tau siv rau hauv kev cog hniav, cov khoom siv kho mob, thiab cov pacemakers.
Cov txheej txheem tsim khoom ntawm ASTM F67 titanium alloy suav nrog ntau kauj ruam, suav nrog melting, casting, forging lossis dov. Lub purity ntawm ib lub hlau kuj yog ib qho tseem ceeb ntawm kev ua kom nws haum rau kev siv kho mob. Cov khoom kawg yuav tsum ua kom tau raws li cov kev xav tau ntawm txhua yam thiab tshuaj lom neeg kom ua tau raws li ASTM F67 cov qauv. Muaj ntau yam khoom tsim los ntawm ASTMF67 titanium alloy, nrog rau cov phaj, rods, xov hlau thiab screws. Cov khoom no muaj nyob rau hauv ntau qhov ntau thiab tsawg thiab specifications kom haum rau ntau daim ntawv thov. Piv txwv li, daim hlau tuaj yeem siv los txhawb cov pob txha grafts, thaum cov pas nrig thiab cov ntsia hlau tuaj yeem siv los tswj cov pob txha.
ASTM F67 cov khoom tshwj xeeb kuj tau hais meej meej. Piv txwv li, Qib 2 titanium phaj muaj nyob rau hauv thicknesses xws li 1.0mm txog 10.0mm, dav txog li 1,000mm, thiab ntev mus txog 3,{ {9}} hli. Tsis tas li ntawd, cov khoom no yuav tsum ua tau raws li nruj flatness, straightness thiab deg tag tolerances.
Mechanical Performance Requirements:
Tus txheej txheem teev cov khoom siv ntawm cov titanium ntshiab, nrog rau cov kev xav tau rau lub zog tensile, yield zog, elongation, thiab lwm yam.
Manufacturing txheej txheem yuav tsum tau:
ASTM F67 tus qauv kuj suav nrog cov kev cai rau cov txheej txheem tsim khoom, xws li kev kho cua sov, ua haujlwm txias, forging, vuam, thiab lwm yam.
Ib qho ntawm cov kev cai tseem ceeb ntawm ASTM F67 yog cov titanium lossis titanium alloy siv hauv kev tsim cov cog cog yuav tsum yog qib kev kho mob zoo. Qhov no txhais tau hais tias cov khoom siv yuav tsum tsis muaj tshuaj lom neeg tsis huv uas tuaj yeem cuam tshuam rau tus neeg mob. Kev kho mob-qib titanium kuj tseem yuav tsum muaj cov pa oxygen, nitrogen, carbon, hlau thiab lwm yam kab kawm, thiab yuav tsum tau kuaj xyuas kom zoo kom ntseeg tau tias cov kev cai no tau ua tiav.
Lwm qhov tseem ceeb ntawm ASTM F67 yog qhov yuav tsum tau kuaj xyuas cov ntaub ntawv.
Tus qauv hais tias ntau qhov kev sim yuav tsum tau ua los txiav txim siab cov khoom siv thiab lub cev ntawm titanium lossis titanium alloys. Cov kev ntsuam xyuas no suav nrog kev ntsuas tensile, ntsuas qhov cuam tshuam thiab kev tshuaj xyuas microstructural. Cov kev ntsuam xyuas no pab xyuas kom meej tias cov khoom muaj lub zog, ductility thiab toughness yuav tsum tau siv rau kev phais kev cog hniav npaj siv.
Tus qauv tseem qhia txog ntau yam kev ua haujlwm uas tuaj yeem siv los tsim cov titanium lossis titanium alloys. Cov no suav nrog forging, dov, extrusion thiab machining. Nws kuj qhia txog qhov siab tshaj plaws tso cai cov ntsiab lus ntawm impurities xws li hlau, carbon thiab nitrogen tso cai rau hauv cov khoom.
ASTM F67 kuj tseem qhia txog qhov yuav tsum tau muaj rau kev kos npe thiab sau npe ntawm titanium thiab titanium alloy cog.
Daim ntawv lo yuav tsum suav nrog cov chaw tsim khoom lub npe, cov khoom lag luam code, batch naj npawb, thiab lwm yam ntaub ntawv tseem ceeb uas xav tau los taug qab lub hauv paus chiv keeb ntawm cog. Qhov no yuav pab xyuas kom cov cog cog tau yooj yim taug qab thiab txheeb xyuas thaum muaj kev rov qab los lossis lwm yam teeb meem kev nyab xeeb.
ASTM F67 plays lub luag haujlwm tseem ceeb hauv kev ua kom ntseeg tau tias titanium thiab titanium alloy cov ntaub ntawv siv hauv kev cog hniav ua tau raws li cov kev cai nruj uas yuav tsum tau siv rau lawv txoj kev nyab xeeb thiab siv tau zoo rau cov neeg mob. ASTM F67 tus qauv muab cov txheej txheem qhia meej rau kev tsim khoom thiab siv cov ntaub ntawv ntshiab titanium kom ntseeg tau tias lawv ua tau raws li cov kev cai ntawm cov khoom siv kho mob, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov inlets. Qhov no yuav pab kom ntseeg tau tias cov ntaub ntawv siv tau zoo heev biocompatible thiab tuaj yeem txo cov teebmeem ntawm tib neeg cov ntaub so ntswg. Txawm li cas los xij, cov kev cai tshwj xeeb thiab cov qauv tuaj yeem ua raws li cov kev xav tau ntawm cov khoom tshwj xeeb, yog li thaum siv ASTM F67 tus qauv, cov tuam txhab yuav tsum ua tib zoo nkag siab thiab ua raws li cov kev cai tshwj xeeb uas siv rau lawv cov khoom. Nws pab muab qib kev lees paub zoo rau cov ntaub ntawv no, thaum kawg tau txais txiaj ntsig zoo rau cov neeg mob thiab cov kws kho mob.
