Aluminium alloy yog tam sim no feem ntau siv cov plhaub tuag casting khoom. Nws yog dav siv nyob rau hauv kev lag luam automotive, maus taus kev lag luam, aerospace thiab lwm yam. Cov yam ntxwv ntawm aluminium alloy yog raws li nram no:
1) Qhov ceev ntawm aluminium alloy yog me me, tsuas yog li 1/3 ntawm hlau, tooj liab thiab zinc. Qhov tshwj xeeb muaj zog thiab kev txhav yog qhov zoo tshaj.
2) Aluminium alloy muaj hluav taws xob thiab thermal conductivity.
3) Aluminium alloy muaj oxidation zoo thiab corrosion kuj. Nyob rau hauv cov huab cua, qhov saum npoo ntawm txhuas nyhav rau ib daim duab xyaw oxide ntawm leej faj trioxide, uas tsis pub ntxiv oxidation.
4) Aluminium alloy muaj zoo tuag casting zog. Kev txhim kho txhuas txhim khu kev lag luam yog yooj yim, sib sau thiab kev coj tus kheej ua lag luam nrog kev ua haujlwm zoo, kev sib txuam khoom thiab corrosion resistant, thiab yog qhov tseem ceeb alloy los hloov steel castings.
Zinc alloys kuj muaj ntau, thiab cov yam ntxwv ntawm zinc alloys yog raws li nram no:
1) Zinc alloy muaj kev nplua zoo heev, cov cuab yeej ua zog thiab kev muaj zog, thiab dav dav siv cov khoom kho, qhov chaw, khoom ua si, cov khoom ua si thiab lwm yam lag luam.
2) Zinc alloy muaj hluav taws xob thiab thermal conductivity, kev ua kom muaj kev vibration zoo, thiab kev ua haujlwm zoo electromagnetic shielding. Daim ntawv thov hauv tshuab hluav taws xob, kev sib txuas lus, thiab khoom siv hauv tsev yog nce.
3) Zinc alloy yog ntau yam khoom siv, ntau yam khoom siv, cov khoom qis uas yooj yim los tuag-nrum. Zinc alloys muaj cov cuab yeej zoo tuag-casting, ua rau nws yooj yim rau cov khoom siv tuag taus nrum nrog txoj kev nrhiav, thin phab ntsa, thiab siab qhov ntev. Vim tias nyias ntsa cov phab ntsa casting zog ntawm zinc alloys, yuav tsum ua kom sib zog dua thiab txo tus nqi yuav ua tiav.
4) Muab piv rau aluminium alloy thiab magnesium alloy, zinc alloy muaj zog tensile zog, yield zog, feem ntau toughness thiab hardness, thiab elongation zoo.
5) Lub nplhaib ntawm zinc alloy tuag castings yog heev yooj yim thiab yuav siv ncaj qha yam tsis muaj ntom kho. Nws kuj yog ib qho yooj yim los nqa tawm ntau cov kev kho saum deg xws li polishing, electroplating, txau, thiab lwm yam. Kom zoo dua ntais zoo.
6) Zinc alloy muaj qhov qis melting thiab melts ntawm 385 ° C. Muab piv rau aluminium alloys thiab magnesium alloys, zinc alloys yog cov uas yooj yim kom tuag taus.
7) Txom khov kev quab yuam. Thaum cov txheej txheem xuab zeb ua rau lead, cadmium, thiab tin hauv zinc alloy muaj pes tsawg tshaj li tus qauv, lawv yuav maj mam muaj hnub nyoog thiab deform, uas yog qhov ntim ntawm qhov ntim loj, cov khoom siv hluav taws xob (tshwj xeeb tshaj yog cov yas), thiab rupture dhau ib lub sijhawm.
8) Ncua sijhawm. Qhov zoo thiab qhov loj ntawm cov zinc hlau tuag casting yuav txawv me ntsis sij hawm.
Muaj kuj muaj magnesium alloy, cov yam ntxwv ntawm magnesium alloy yog raws li nram no:
1) Magnesium alloy yog hu ua "ntsuab engineering khoom ntawm xyoo pua 21st". Nws ceev yog 2/3 ntawm txhuas alloy thiab 1/4 ntawm hlau, tab sis lub zog muaj zog thiab meej txhav yog zoo dua aluminium alloy thiab hlau. Hauv plastics engineering, nws yog ib qho khoom zoo heev thiab muaj qauv khoom.
2) Magnesium alloy muaj lub zog zoo thiab kev nqhis dej ntawm lub zog. Nws tuaj yeem siv rau lub tshav dav hlau ntawm cov khoom kom txo cov suab nrov nrov, thiab siv tau rau txav ntawm qhov nqes mus rau kev vibration thiab pab cuam lub neej ua haujlwm ntawm qhov chaw.
3) Nws muaj kev tiv thaiv electromagnetic zoo thiab muab tau hluav taws xob hluav taws xob hauv hluav taws xob hauv hluav taws xob.
4) Rigidity zoo thiab kev ua haujlwm tsis zoo.
5) Lub cev zoo thiab tsim tau yooj yim, uas ua rau cov khoom tsim tau yooj yim thiab txhim kho qib qib.
6) Qhov qis melting ntawm lub magnesium alloy ua rau cov dej tsawg deformation me me thiab qhov ntev qhov zoo tshaj plaws siab, uas yog rau siab rau ib zaug qhib molding; qhov affinity nrog hlau yog me me, qhov adhesion rau mould yog me me, uas yog zoo los txhim kho khoom tsim thiab pwm lub neej; thiab magnesium alloy yog zoo. Ndlwg kev ua haujlwm pabcuam cov khoom thiab qhov chaw me me.