Qhov sib txawv ntawm titanium alloy thiab magnesium alloy

magnesium alloy
Magnesium alloy yog ib qho alloy raws li magnesium nrog lwm cov ntsiab lus ntxiv. Lub ntsiab alloying ntsiab yog txhuas, manganese, zinc, cerium, thorium, thiab me me ntawm zirconium thiab cadmium. Tam sim no feem ntau siv yog magnesium-aluminium alloy, ua raws li magnesium-manganese alloy thiab magnesium-zinc alloy. Magnesium alloys tuaj yeem siv dav hauv tsheb, hluav taws xob, textiles, kev tsim kho thiab kev ua tub rog vim lawv zoo heev casting, extrusion, txiav thiab dabtsi yog khoov zog.

Lub melting point ntawm magnesium alloy yog 650 degree thiab muaj zoo tuag-casting zog. Lub zog tensile ntawm magnesium alloy castings feem ntau tuaj yeem ncav cuag 250MPa, thiab qhov siab tshaj plaws tuaj yeem ncav cuag ntau dua 600MPa.

Magnesium alloy muaj qhov ntom ntom (li 1.8g / cm3) thiab lub zog siab. Magnesium alloy yog cov khoom siv hluav taws xob zoo tshaj plaws, nrog lub ntiajteb txawj nqus tsuas yog 1.8, uas yog 2/3 ntawm txhuas thiab 1/4 ntawm hlau. Nws lub zog tshwj xeeb yog siab li 133, uas ua rau magnesium alloy yog cov khoom siv muaj zog. Magnesium alloy muaj qhov loj elastic modulus thiab zoo poob siab. Nyob rau hauv ntau yam elasticity, magnesium alloys nqus ib nrab ntawm lub zog dua li aluminium alloy qhov chaw thaum raug cuam tshuam rau kev thauj khoom, yog li magnesium alloys muaj kev cuam tshuam zoo thiab txo cov suab nrov.

Kev tuag-casting kev ua tau zoo ntawm magnesium alloy yog zoo heev. Qhov tsawg kawg nkaus phab ntsa tuab ntawm tuag castings tuaj yeem ncav cuag 0.5mm, uas yog tsim rau kev tsim ntau yam tsheb tuag castings. Magnesium alloy qhov chaw muaj kev ruaj ntseg siab, tuag castings muaj siab castability thiab qhov tseeb qhov tseeb, thiab tuaj yeem ua tiav nrog siab precision.

Piv nrog rau cov alloys, magnesium alloys muaj qhov zoo ntawm cov cua sov dissipation. Rau cov radiators ua los ntawm magnesium alloy thiab aluminium alloy ntawm tib lub ntim thiab cov duab, lub tshav kub (kub) generated los ntawm ib tug tej yam tshav kub qhov chaw yog yooj yim dua pauv los ntawm magnesium alloy los ntawm lub radiator hauv paus dua lub aluminium alloy. Qhov nrawm dua koj mus rau saum, qhov yooj yim dua nws yog rau sab saum toj kom ncav cuag qhov kub siab.

Txawm li cas los xij, cov kab nthuav dav coefficient ntawm magnesium alloy loj heev, ncav cuag 25-26μm / m degree, thaum lub aluminium alloy yog 23μm / m degree, tooj dag yog li 20μm / m degree, cov qauv hlau yog 12μm / m degree. , thiab cam khwb cia hlau yog li 10μm / m degree. m degree. Pob zeb (granite, marble, thiab lwm yam) tsuas yog 5 mus rau 9 μm / m degree, thiab iav yog 5 txog 11 μm / m degree. Thaum siv nws rau qhov chaw cua sov, qhov cuam tshuam ntawm qhov kub thiab txias ntawm qhov loj ntawm cov qauv yuav tsum tau txiav txim siab.

Daim ntawv thov piv txwv ntawm magnesium alloy: Feem ntau, nruab nrab-rau-siab-kawg thiab cov kws tshaj lij digital SLR koob yees duab siv magnesium alloy ua tus ncej kom nws muaj zog, ruaj thiab zoo hauv tes; casings ntawm cov xov tooj ntawm tes thiab laptops; Thaum tshav kub kub dissipation qhov chaw ntawm lub computer thiab projector casings uas ua kom kub siab nyob rau hauv siv magnesium Alloy; automotive steering wheels, steering brackets, brake brackets, seat frames, rearview mirror brackets, distributor brackets and other structural parts that need to lightweight and high strength.

Raws li txoj kev tsim, nws muab faib ua ob pawg: deformed magnesium alloy thiab cam khwb cia magnesium alloy.

Magnesium alloy qib tau qhia nyob rau hauv daim ntawv ntawm cov ntawv Askiv, lej thiab ntawv Askiv. Thawj tsab ntawv Askiv yog lub npe code ntawm nws qhov tseem ceeb tshaj plaws alloying tivthaiv, thiab cov lej hauv qab no sawv cev tus nqi nruab nrab ntawm qhov txwv sab sauv thiab qis ntawm nws qhov tseem ceeb tshaj plaws alloying tivthaiv. Tsab ntawv Askiv kawg yog tus lej cim, uas yog siv los txheeb xyuas cov alloys sib txawv nrog cov ntsiab lus tshwj xeeb lossis cov ntsiab lus sib txawv me ntsis.
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Titanium alloy

Titanium alloy yog hais txog cov hlau alloy uas ua los ntawm titanium thiab lwm yam hlau. Lawv muaj lub zog siab, zoo corrosion kuj thiab siab kub tsis kam. Titanium alloys yog dav siv nyob rau hauv zus tau tej cov aircraft engine compressor qhov chaw, thav ntawv, tawv, fasteners thiab tsaws gears. Titanium alloys kuj tseem siv rau hauv cov qauv ntawm cov foob pob hluav taws, cuaj luaj thiab cov dav hlau ceev.

Lub melting point ntawm titanium yog 1668 degree. Nws muaj ib tug kaw-packed hexagonal lattice qauv hauv qab 882 degree thiab hu ua alpha titanium; nws muaj lub cev-centered cubic lattice qauv saum toj no 882 degree thiab hu ua beta titanium. Los ntawm kev siv cov yam ntxwv sib txawv ntawm cov saum toj no ob lub qauv ntawm titanium thiab ntxiv cov ntsiab lus alloying tsim nyog, titanium alloys nrog cov qauv sib txawv tuaj yeem tau txais. Nyob rau hauv chav tsev kub, titanium alloys muaj peb matrix qauv, thiab titanium alloys muab faib ua peb pawg: alloys, () alloys thiab alloys. Hauv peb lub tebchaws, lawv tau sawv cev los ntawm TA, TC, thiab TB feem.

Qhov ceev ntawm titanium alloys feem ntau yog nyob ib ncig ntawm 4.51g / cm3, uas tsuas yog 60% ntawm cov hlau. Qee lub zog titanium alloys siab tshaj lub zog ntawm ntau cov qauv hlau alloys. Yog li ntawd, lub zog tshwj xeeb (lub zog / ntom) ntawm titanium alloys yog ntau dua li ntawm lwm cov khoom siv hlau. , tuaj yeem tsim cov khoom nrog lub zog siab, zoo rigidity thiab lub teeb yuag.

Titanium yog non-toxic, hnav, muaj zog thiab muaj biocompatibility zoo heev. Nws yog ib qho khoom siv zoo tshaj plaws rau kev kho mob hlau thiab tuaj yeem siv los ua kev cog qoob loo hauv tib neeg lub cev. Hauv Tebchaws Meskas, 5 beta titanium alloys tau pom zoo siv rau hauv kev kho mob, xws li TMZFTM (TI-12Mo-^Zr-2}Fe), Ti-13Nb{{6 }}Zr, Timetal 21SRx (TI-15Mo-2.5Nb-0.2Si), Tiadyne 1610 (Ti-16Nb-9.5Hf) thiab Ti-15Mo yog qhov tsim nyog rau kev cog qoob loo rau hauv tib neeg lub cev, xws li pob txha pob txha, vascular stents, thiab lwm yam.

TiNi alloy muaj biocompatibility zoo, thiab muaj ntau yam kev kho mob piv txwv uas siv nws cov duab nco nyhuv thiab superelasticity. Xws li thrombus lim, spinal orthopedic rods, kho hniav orthopedic nyob ntawm tej, vascular stents, pob txha daim hlau, intramedullary koob, dag pob qij txha, contraceptive devices, lub plawv kho qhov chaw, micropumps rau lub raum dag, thiab lwm yam.

Titanium alloy khoom tuaj yeem tau txais los ntawm kev tuag casting thiab machining. Lub melting kub ntawm titanium alloy yog siab heev, thiab cov yuav tsum tau rau pwm steel kuj siab heev. Muaj ntau txoj hauv kev rau titanium alloys, xws li: tig, milling, tho txawv, drilling, sib tsoo, tapping, sawing, EDM, thiab lwm yam.

Titanium alloys kuj muaj cov machinability tsis zoo. Lub zog txiav thaum txiav titanium alloys tsuas yog me ntsis siab dua cov hlau ntawm tib lub hardness. Txawm li cas los xij, cov thermal conductivity ntawm feem ntau cov titanium alloys tsawg heev, tsuas yog 1/7 ntawm cov hlau thiab 1/16 ntawm txhuas, yog li cov cua sov uas tsim los ntawm kev txiav yuav tsis tawg sai sai. Sib sau ua ke nyob rau hauv qhov chaw txiav, ua rau hnav sai sai, kev sib tsoo, thiab tsim-up ntug ntawm lub cuab yeej ntug.