Powdered hlau yog tsim los ntawm ribbon thiab alloy hmoov los ntawm mechanical pressing. Tus nqi ntawm cored hlau txo nrog nce calcium yield thiab nyob ntawm seb hom cored hlau thiab txawv considerably. Nyob rau hauv cov xwm txheej ntawm tib qib ntawm calcium extraction, qhov loj feem ntawm calcium nyob rau hauv ntshiab calcium hmoov hlau yog siab dua, thiab qhov zoo ntawm kom muaj nuj nqis yog pom tseeb.
Calcium kho cov hlau thiab kev xaiv ntawm cored hlau. Tsob ntoo hmoov hlau siv rau kev kho calcium feem ntau suav nrog:
1. calcium-silicon hlau: cov hmoov hauv cov hlau yog Si-Ca alloy. Qhov kom zoo dua yog tias cov calcium nqus tau ruaj khov, thiab calcium tsis yooj yim oxidized los ntawm huab cua. Qhov tsis zoo yog qhov loj ntawm silicon cov ntsiab lus, thiab nws tsis muaj feem xyuam rau cov hlau tsis tshua muaj silicon.
2. Calcium-hlau hlau: cov hmoov nyob rau hauv cov tub ntxhais hlau yog cov ntshiab calcium hlau hais, uas yog tov nrog hlau hmoov nyob rau hauv ib tug tej yam kev faib ua feem, tab sis nyob rau hauv tus txheej txheem ntawm pub, ntau cov pa luam yeeb yog tsim, uas yooj yim ua rau steel spattering. , tus nqi rov qab ntawm calcium tsis ruaj khov, thiab cov calcium hlau yog yooj yim oxidized los ntawm ya raws, uas shortens lub txee lub neej ntawm cov hlau.
3. Calcium txhuas hlau: Cov hmoov hauv cov hlau tuaj yeem ua los ntawm CaAl alloy los ntawm kev sib tsoo lossis los ntawm kev sib xyaw cov calcium uas ntshiab nrog txhuas hmoov. Cov kab no yog tus cwj pwm los ntawm kev ruaj khov thiab siab calcium rov qab tus nqi, thiab tsis muaj qhov pom tseeb nce ntawm silicon hauv cov hlau tom qab xaim noj.