Lub luag haujlwm ntawm cov khoom siv ntxiv rau txhuas

Cov khoom siv aluminium alloy tau siv dav hauv ntau qhov chaw vim lawv qhov kev ua tau zoo heev. Txawm li cas los xij, lawv qhov kev ua tau zoo heev tsis tuaj yeem sib cais los ntawm ntau yam khoom siv aluminium alloy. Nyob rau xyoo tas los no, cov khoom siv aluminium alloy tau dhau los ua cov khoom tseem ceeb rau kev txhim kho kev ua tau zoo ntawm aluminium alloys thiab txhim kho cov qauv noob.

Cov khoom siv ntxiv rau cov hlau txhuasyog cov tshuaj uas tau ntxiv rau cov hlau uas yaj thaum lub sijhawm tsim khoom. Cov tshuaj ntxiv no ua haujlwm ntau yam thiab muaj feem cuam tshuam loj rau cov khoom kawg. Lub luag haujlwm ntawm cov tshuaj ntxiv sib txawv, piv txwv li,cov khoom ntxiv chromium, uas ua lub luag haujlwm tseem ceeb hauv kev ntxiv chromium rau aluminium alloys thiab kev txhim kho cov qauv ntawm cov noob, thiabcov tshuaj ntxiv manganese, uas tuaj yeem cuam tshuam rau cov ntsiab lus ntawm manganese hauv cov khoom lag luam aluminium alloy.

Ntawm zhelu, cov khoom siv ntxiv rau aluminium alloy kuj tseem hu ua 75% aluminium alloy additives, uas txhais tau tias cov ntsiab lus ntawm cov tshuaj lom neeg uas yuav ntxiv rau cov khoom ntxiv yog 75% thiab qhov seem yog txhuas, uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua tau zoo thiab zoo ntawm cov khoom siv aluminium alloy. Tsis tas li ntawd, cov khoom siv ntxiv rau aluminium alloy uas tsim los ntawm zhelu muaj cov txiaj ntsig ntau dua 95%. Qhov no ua kom zoo dua kev siv cov khoom siv raw, txo cov khib nyiab thiab ua kom muaj txiaj ntsig zoo tshaj plaws. Qhov no tsis yog tsuas yog pab cov chaw tsim khoom kom txo cov nqi, tab sis kuj txhawb kev txhim kho kev lag luam tag nrho.

Kev tiv thaiv ib puag ncig thiab tsis muaj kuab paug tau dhau los ua qhov kev txhawj xeeb tseem ceeb ntawm lub zej zog. Muaj kev paub ntau ntxiv txog qhov tseem ceeb ntawm kev tiv thaiv ib puag ncig thiab qhov xav tau rau kev ntsuas ib puag ncig zoo hauv txhua qhov kev lag luam. Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv cov khoom siv aluminium alloy yog kev tiv thaiv ib puag ncig. Cov tshuaj lom neeg tsis zoo yog tsim tawm hauv kev tsim tshuaj lom neeg. zhelu cov khoom ntxiv tsom mus rau kev tiv thaiv ib puag ncig thiab kev tsim khoom tsis muaj kuab paug. Lawv ua raws li cov cai nruj thiab pab txo cov pa phem ntawm cov kuab paug thaum lub sijhawm tsim khoom.

Qee cov khoom siv ntxiv rau cov hlau txhuas kuj muaj cov nyhuv ua kom zoo rau cov hlau. Los ntawm kev ntxiv cov ntsiab lus tshwj xeeb rau hauv cov hlau uas yaj, cov khoom ntxiv no pab tshem tawm cov khoom tsis huv, txhim kho qhov sib xws ntawm cov hlau thiab txhim kho nws cov khoom siv kho tshuab. Piv txwv li,magnesium ingest, ntxiv magnesium ingot lub hom phiaj tseem ceeb yog los txhim kho cov ntsuas kev ua tau zoo ntawm aluminium alloy tuag casting, tshwj xeeb tshaj yog kev tiv thaiv corrosion. Raws li cov kws tshaj lij, aluminium thiab magnesium alloy tuag casting yog lub teeb thiab tawv, zoo tiv thaiv corrosion, yooj yim rau weld thiab lwm yam kev kho saum npoo, yog kev tsim cov dav hlau, rockets, speedboats, tsheb thiab lwm yam khoom siv tseem ceeb. Tsis tas li ntawd, lub luag haujlwm ntawm aluminium alloy additives tsis yog tsuas yog txhim kho cov khoom siv kho tshuab, cov additives no kuj txhim kho kev siv tshuab ntawm cov alloy, ua rau nws yooj yim dua rau kev ua thiab tuav. Lawv pab txo cov qhov tsis zoo uas tshwm sim thaum lub sijhawm casting thiab molding, yog li ua rau cov qoob loo ntau dua thiab txo cov nqi pov tseg. Kev siv tshuab zoo dua ntawm cov additives no pab txuag cov nqi thiab ua kom ntseeg tau tias cov khoom zoo.

Txawm hais tias cov khoom ntxiv ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm cov khoom siv aluminium alloy, cov chaw tsim khoom kuj tseem yuav tsum tsim cov kev pab cuam sib txawv raws li cov yam ntxwv ntawm cov khoom ntxiv sib txawv thiab lawv qhov kub ua haujlwm. Piv txwv li, chromium, manganese thiabtooj liab Cov khoom siv ntxiv rau hauv cov khoom siv aluminium alloy yuav tsum tau ntxiv tsuas yog thaum lawv qhov kub ua haujlwm siab dua 730 ° C, thaumsiliconthiabhlauyuav tsum tau siv rau hauv ib puag ncig ntawm 740 ° C thiab 750 ° C, raws li. Tsis tas li ntawd, rau kev noj tshuaj, zhelu feem ntau yog coj los ntawm cov qauv no:

kev siv cov khoom ntxiv kom raug yog qhov txiav txim siab rau qhov zoo kawg ntawm cov khoom siv aluminium alloy.

Xaus lus, cov khoom ntxiv rau aluminium alloy ua lub luag haujlwm tseem ceeb hauv kev tsim cov alloys zoo uas tsis ua rau ib puag ncig puas tsuaj. Cov khoom ntxiv no pab txhawb rau kev ruaj khov ntawm kev lag luam los ntawm kev tsom mus rau cov txheej txheem uas tsis ua rau ib puag ncig puas tsuaj thiab tsis ua rau muaj kuab paug. Lawv lub peev xwm los txhim kho cov qauv ntawm cov noob, ua kom cov ntsiab lus ntawm cov khoom hauv aluminium alloy ntau ntxiv thiab txhim kho kev siv tshuab ntawm cov alloy ua rau lawv tsis tseem ceeb hauv ntau qhov chaw. Raws li qhov kev thov rau cov khoom siv zoo thiab zoo uas tsis ua rau ib puag ncig puas tsuaj txuas ntxiv mus, qhov tseem ceeb ntawm cov khoom ntxiv rau aluminium alloy yuav tseem ceeb, uas yuav ua rau yav tom ntej ntsuab dua thiab ua haujlwm tau zoo dua.