Magnesium alloy
Tsuas yog kom paub txog cov magnesium alloys hauv feild ntawm thev naus laus zis, magnesium alloys yog alloys raws li magnesium nrog lwm cov ntsiab lus ntxiv. Lub ntsiab alloying ntsiab yog txhuas, zinc, manganese, cerium, thorium, thiab ib tug me me ntawm zirconium los yog cadmium. Tam sim no, magnesium alloy yog siv dav tshaj plaws, ua raws li magnesium manganese alloy thiab magnesium zinc alloy. Magnesium alloys tuaj yeem siv dav hauv tsheb, hluav taws xob, textile, 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, lub melting point yog qis dua li ntawm aluminium alloy, thiab tuag casting kev ua tau zoo. Lub zog tensile ntawm magnesium alloy castings yog sib npaug ntawm aluminium alloy castings, feem ntau txog li 250MPa thiab mus txog ntau tshaj 600 MPa.
Magnesium alloy muaj qhov ntom ntom (kwv yees li 1.8g / cm3) thiab lub zog siab. Magnesium alloy yog cov khoom siv hlau hnyav tshaj plaws nrog lub ntiajteb txawj nqus ntawm tsuas yog 1.8, 2/3 ntawm txhuas, thiab 1/4 ntawm hlau, raws li, thiab lub zog tshwj xeeb txog li 133, uas ua rau magnesium alloy tuaj yeem siv tau los ua qhov siab. - khoom siv zog. Lub zog tshwj xeeb ntawm high-strength magnesium alloys yog txawm piv rau cov titanium.
Magnesium alloy muaj qhov loj elastic modulus thiab zoo poob siab. Nyob rau hauv ntau yam elastic, magnesium alloy absorbs ib nrab ntawm lub zog ntau dua li aluminium alloy thaum raug cuam tshuam rau kev thauj khoom, yog li magnesium alloy muaj kev ua haujlwm zoo seismic suab nrov txo.
Magnesium alloy muaj kev ua tau zoo tuag-casting, qhov tsawg kawg nkaus phab ntsa tuab ntawm kev tuag casting tuaj yeem ncav cuag 0.5mm, haum rau kev tsim ntau yam tsheb tuag casting qhov chaw. Cov magnesium alloy qhov chaw muaj kev ruaj ntseg siab, thiab cov casting qhov chaw muaj qhov siab precision, uas tuaj yeem ua machined nrog high precision.
Lub tshav kub dissipation ntawm magnesium alloy muaj qhov zoo ntawm cov hlau. Rau lub dab dej kub ntawm magnesium alloy thiab aluminium alloy cov khoom ntawm tib lub ntim thiab cov duab, cov cua sov (kub) uas tsim los ntawm lub tshav kub ntawm magnesium alloy yog yooj yim dua.
pauv los ntawm lub hauv paus ntawm lub dab dej kub rau sab saum toj ntawm qhov ceev tshaj li aluminium alloy, thiab sab saum toj yog yooj yim dua mus txog ntawm qhov kub thiab txias.
Txawm li cas los xij, cov kab nthuav dav coefficient ntawm magnesium alloy yog qhov loj heev, ncav cuag 25-26 μm / m degree, thaum lub aluminium alloy yog 23 μm / m degree, tooj dag txog 20 μm / m degree, cov qauv hlau txog 12 μm / m degree, cam khwb cia hlau txog 10μm / m degree, pob zeb (granite, marble, thiab lwm yam) tsuas yog 5-9 μm / m degree , iav 5-11 μm / m degree . Qhov cuam tshuam ntawm qhov kub ntawm cov qauv loj yuav tsum raug txiav txim siab thaum siv rau hauv qhov chaw sov.
Daim ntawv thov piv txwv ntawm magnesium alloy: feem ntau nruab nrab thiab high-end thiab cov kws tshaj lij digital SLR koob yees duab txais yuav magnesium alloy raws li lub cev pob txha, ua rau nws ruaj thiab zoo; Cov xov tooj ntawm tes, thiab cov ntaub ntawv laptop; Magnesium alloys yog siv rau hauv vaj tse thiab qhov chaw txias ntawm cov khoos phis tawj thiab cov projectors uas tsim kom muaj qhov kub thiab txias sab hauv; Automotive steering log, steering bracket, brake bracket, seat thav duab, iav bracket, tis bracket thiab lwm yam yuav tsum tau ntawm lub teeb-yuag thiab siab zog structural qhov chaw.
Raws li txoj kev tsim, nws tuaj yeem muab faib ua ob pawg: deformed magnesium alloy thiab cam khwb cia magnesium alloy.
Magnesium alloy qib yog sawv cev los ntawm cov ntawv + lej + ntawv. Cov tsiaj ntawv ua ntej yog cov lej ntawm cov ntsiab lus tseem ceeb tshaj plaws (raws li tau teev tseg hauv cov lus hauv qab no), thiab cov lej hauv qab no yog qhov nruab nrab ntawm qhov txwv sab sauv thiab qis ntawm cov ntsiab lus tseem ceeb tshaj plaws. Tsab ntawv kawg ntawm cov tsiaj ntawv yog tus lej cim siv los txheeb xyuas cov alloys sib txawv nrog cov ntsiab lus tshwj xeeb lossis cov ntsiab lus sib txawv me ntsis.
Cov qib ntawm magnesium alloys yog AZ31B, AZ31S, AZ31T, AZ40M, AZ41M, AZ61A, AZ61M, AZ61S, AZ62M, AZ63B, AZ80A, AZ80M, AZ80S, AZ91D, 1AMA, 1AM60 M2S, thiab ZK61 M, ZK61S, ME20M, LZ91, LZ61, LZ121, LZ121, LA141, LA191, LAZ933, LA81, LA91, LAZ931, MA18, MA21, MA14, thiab lwm yam.
