Copper nyob rau hauv cov kab impurities ntawm cov tooj liab conductivity, thermal conductivity muaj ib qho kev cuam tshuam loj heev. Ntawm lawv, titanium, phosphorus, hlau, silicon, thiab lwm yam. txo cov conductivity, thaum cadmium, zinc, thiab lwm yam muaj me me nyhuv. Oxygen, sulfur, selenium, tellurium thiab lwm yam khoom solubility hauv tooj liab yog me me, tuaj yeem tsim nrog cov tooj liab brittle compounds, cov conductivity ntawm qhov cuam tshuam tsis yog qhov tseem ceeb, tab sis tuaj yeem txo cov txheej txheem plasticity.
Cov tooj liab zoo tib yam hauv qhov chaw txo qis uas muaj hydrogen lossis carbon monoxide thaum cua sov, hydrogen lossis carbon monoxide thiab yooj yim rau cov qoob loo ntawm cuprous oxide (Cu2O), uas ua rau cov dej kub siab los yog cov pa roj carbon dioxide, tuaj yeem ua rau tooj liab tawg. Qhov tshwm sim no feem ntau hu ua tooj liab "hydrogen kab mob".
Oxygen yog teeb meem rau lub solderability ntawm tooj liab. Bismuth los yog txhuas thiab tooj liab los tsim kom muaj qhov qis melting point eutectic, yog li ntawd cov tooj liab ua kub nkig; thiab brittle bismuth yog ib zaj duab xis nyias muab faib rau hauv cov ciam teb, tab sis kuj ua rau cov tooj liab ua kom txias nkig.
Phosphorus tuaj yeem txo cov hluav taws xob conductivity ntawm tooj liab, tab sis tuaj yeem txhim kho cov kua dej ntawm tooj liab, txhim kho cov khoom siv. Cov nqi nruab nrab ntawm cov hlau lead, tellurium, sulfur, thiab lwm yam tuaj yeem txhim kho lub tshuab ua haujlwm. Copper annealed sheet chav kub tensile lub zog ntawm 22 ~ 25 kg quab yuam / hli 2, elongation ntawm 45 ~ 50%, Brinell hardness (HB) ntawm 35 ~ 45.
Txawm koj xav taucov kav dej tooj liab, tooj liab rods ,tooj liab daim hlau, peb muaj cov khoom thiab kev txawj ntse kom tau raws li koj xav tau.
