1.Main tshuaj muaj pes tsawg leeg ntawm ntshiab tooj liab
Cov tooj liab ntshiab yog cov hlau uas tsis yog -ferrous hlau nrog tooj liab (Cu) raws li nws cov ntsiab lus tseem ceeb. Ntxiv nrog rau tooj liab, nws tsuas muaj cov kab ntawm cov khoom seem uas tsis tuaj yeem ua los ntawm kev sib tov thiab ua, xws li phosphorus (P), lead (Pb), hlau (Fe), tin (Sn), zinc (Zn), nickel (Ni), sulfur (S), oxygen (O), thiab lwm yam. Yog li ntawd, ntshiab tooj liab yog qhov tseem ceeb ntawm tooj liab nrog tsis tshua muaj impurity theem.
2.Cov ntsiab lus tooj liab tsawg kawg hauv cov tooj liab ntshiab
Raws li cov qauv thoob ntiaj teb thiab Suav teb (xws li GB / T 5231 rau cathode tooj liab thiab GB / T 2040 rau cov nplooj ntawv tooj liab / strips), cov ntsiab lus tooj liab ntawm kev lag luam zoo tib yam tooj liab feem ntau tsis tsawg dua 99.90% los ntawm huab hwm coj.
Rau siab -purity lossis cathode tooj liab siv rau hauv hluav taws xob lub hom phiaj, cov ntsiab lus tooj liab siab dua, feem ntau tsis tsawg dua 99.95%, thiab qee qhov siab - qib electrolytic tooj liab tuaj yeem ncav cuag 99.99%. Cov ntsiab lus tooj liab siab ua kom nws cov hluav taws xob zoo heev, thermal conductivity thiab plasticity.
3.Upper txwv ntawm phosphorus, txhuas, hlau thiab lwm yam impurities nyob rau hauv ntshiab tooj liab
Noj cov qauv siv feem ntau siv electrolytic cathode tooj liab thiab muaj cov tooj liab ntshiab (Cu-1, Cu-2 qib) ua piv txwv, cov kev txwv saum toj kawg nkaus ntawm cov impurities tseem ceeb yog raws li hauv qab no:
Phosphorus (P): Phosphorus tiag tiag txo cov hluav taws xob conductivity. Kev txwv sab saud feem ntau yog tswj tsis pub dhau 0.005% -0.01%.
Lead (Pb): Lead yog ib qho teeb meem brittle impurity. Kev txwv sab saud feem ntau yog 0.005% -0.01%.
Hlau (Fe): Hlau kuj impairs conductivity thiab kev ua tau zoo. Kev txwv sab saud feem ntau yog 0.005% -0.01%.
Lwm yam impurity txwv xws li:
Tin (Sn): Tsawg dua lossis sib npaug rau 0.002%
Zinc (Zn): Tsawg dua lossis sib npaug rau 0.002%
Nickel (Ni): Tsawg dua lossis sib npaug rau 0.002%
Sulfur (S): Tsawg dua lossis sib npaug rau 0.005%
Oxygen (O): Tsawg dua lossis sib npaug li 0.04%–0.06% (rau cov pa oxygen- muaj tooj liab; oxygen- tooj liab dawb yog qis dua)
Kev tswj nruj ntawm cov impurities no ua kom cov tooj liab ntshiab muaj lub cev ruaj khov thiab kev ua haujlwm, tshwj xeeb tshaj yog rau cov khoom siv hluav taws xob, hluav taws xob, hluav taws xob, hluav taws xob thiab kev sib sib zog nqus daim ntawv thov.
