(1) hlau thiab silicon
Hlau yog ntxiv raws li ib qho alloying nyob rau hauv al-cg-ni-reught alloys, thiab hauv alloyon thiab hlau yog hom impurity cov ntsiab uas muaj qhov cuam tshuam loj ntawm alloy cov khoom . Lawv tseem muaj ntau dua li cov hlau, thiab lom zem dua . Thaum cov sib piv ntawm silicon yog tsis tsim nyog, nws yuav ua rau cov kab nrib pleb hauv lub camting . Thaum cov hlau cov ntsiab lus hauv nrumin yog siab dhau, lub casting yuav dhau los ua bince {{18 18 18 18 18 18}
(2) Raug ciam av
Vanadium, calcium, ua, bismuth,} Cov qauv impacter, yog li cov khoom siv los sib txawv, thiab cov khoom sib txawv ntawm cov khoom siv ntawm aluminium sib txawv yog txawv.
Vanadium ua cov teb hluav taws xob hauv alloys, uas ua lub luag haujlwm ntawm cov qauv siv hluav taws xob tsawg dua li ntawd ntawm cov qauv ua kom zoo dua qub thiab ua kom rov qab ua kom muaj qhov kub thiab txias dua.
Cov tshuaj calcium muaj cov solubility heev hauv txhuas thiab cov khoom sib txuas ua ke ntawm aliecce}}}}}}}}}}}} Daim ntawv ntxaij vab tshaus {}}}} Vim muaj kev txo qis ntawm cov Kev daws teeb meem ntawm silicon, qhov kev tshaj tawm ntawm industrial txhuas tuaj yeem txhim kho cov calcium aliects los ntawm kev kho hydrogen los ntawm aluminium ua kua {}}
Txhuas, tin, thiab bismuth yog tsawg melting-point {}}}}}}}}}}}}}}}}}}}}}}}} Cov khoom lag luam loj me me tuaj yeem tiv thaiv sodium embrittlement .
Cov neeg pleev ib ce yog siv los ua kev hloov pauv ntawm Alloys} Nws tsuas yog siv los hloov Sormution cov ntsiab lus ntxiv rau kev ua tau zoo ntawm kub thiab txias nias cov txheej txheem .
BerylLium tuaj yeem txhim kho tus qauv ntawm cov yeeb yaj kiab oxide thiab txo qis . Cov ntsiab lus berergine yog li ntawd, cov ntsiab lus hauv berab yog qhov feem ntau Kev tswj hwm hauv qab 8PPM (1ppm =1}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
Cov sodium yuav luag tsis muaj qhov zoo tshaj plaws hauv txhuas, nrog cov solubility ntau dua 0} {}} {} {{}}} {}}}}}}} Thaum lub sij hawm kub ua haujlwm, cov sodium ntawm cov txheej txheem sib xyaw ua ke, thiab tsis muaj dab tsi tshwm sim, thiab tsis muaj hnub ci Silicon, precipitates dawb sodium, thiab tsim tawm "sodium embrittlement". Yog li ntawd, sodium ntsev flux tsis pub siv nyob rau hauv high-magnesium aluminium alloys.
Cov hau kev los tiv thaiv "Sodium embrittlement" uas ua rau sodium daim ntawv nacl thiab tso nws mus rau na2b thiab nkag mus rau hauv cov hlau matrix; ntxiv rau antimimed rau form na3sb lossis ntxiv lub ntiaj teb tsawg kuj tuaj yeem ua si tib lub luag haujlwm {}
Hydrogen yog ntau soluble ntawm lub suab nrov ntawm cov khoom uas muaj ntau dua li cov khoom siv roj ntsha ntawm txhuas lossis hauv cov pa puag ncig . Cov ntsiab lus hauv cov roj ntsha ua kua xws li ua kom muaj zog ntxiv rau hydrogenbed .
Ntxiv rau kev tsim cov hws uas lub sijhawm ua yeeb yam, fluister thiab hydrogen thiab kub} pa taws yuav tsum txwv los ntawm online degassing khoom {}}