世界查明的锂资源丰富
Lithium resource is abundant in the world
据2008年1月出版的《USGS矿产品概要》获悉,2006年统计的全球查明的锂资源（以Li2O计）为：储量为882．52万t，储量基础为2637．75万t。主要集中在智利、中国、巴西...世界查明的锂资源丰富
Lithium resource is abundant in the world
据2008年1月出版的《USGS矿产品概要》获悉,2006年统计的全球查明的锂资源（以Li2O计）为：储量为882．52万t，储量基础为2637．75万t。主要集中在智利、中国、巴西、加拿大、和澳大利亚等国家，见表1。展开更多
Due to the high content of the Al-TRIP steel, Al reacts with SiO2 in the mold slag during the casting process, which results in the increase of ωAl2O3 /ωSiO2 ratio and the Al2O3 content, respectively; the characteri...Due to the high content of the Al-TRIP steel, Al reacts with SiO2 in the mold slag during the casting process, which results in the increase of ωAl2O3 /ωSiO2 ratio and the Al2O3 content, respectively; the characteristic of heat transfer through the slag film is then changed, which influences the smooth operation of the continuous casting process. The heat flux simulator of mold slag film was used to study the change tendency of the heat flux density through slag film and the results were discussed; at the same time, the characteristics of the crystals in the No. 15 mold slag were determined by BSE and XRD. The results obtained show that heat flux density decreases with the increase of ωAl2O3 /ωSiO2 ratio. Heat flux density increases with the increase of Li2O and/or B2O3 content in the mold slag which contains 30 % of Al2 O3. Compared with the heat flux density of common slag of peritectic steel, a suitable mold slag containing 4% of B2O3 and 4% of Li2O is designed. The heat flux density is 0. 645 MW/m^2 when ωAl2O3 /ωSiO2 = 1. 46. Under this experimental condition, the CaF2 crystals precipitate in the mold slag used for Al-TRIP steel.展开更多
文摘世界查明的锂资源丰富
Lithium resource is abundant in the world
据2008年1月出版的《USGS矿产品概要》获悉,2006年统计的全球查明的锂资源（以Li2O计）为：储量为882．52万t，储量基础为2637．75万t。主要集中在智利、中国、巴西、加拿大、和澳大利亚等国家，见表1。
基金Item Sponsored by National Natural Science Foundation of China (50874125)
文摘Due to the high content of the Al-TRIP steel, Al reacts with SiO2 in the mold slag during the casting process, which results in the increase of ωAl2O3 /ωSiO2 ratio and the Al2O3 content, respectively; the characteristic of heat transfer through the slag film is then changed, which influences the smooth operation of the continuous casting process. The heat flux simulator of mold slag film was used to study the change tendency of the heat flux density through slag film and the results were discussed; at the same time, the characteristics of the crystals in the No. 15 mold slag were determined by BSE and XRD. The results obtained show that heat flux density decreases with the increase of ωAl2O3 /ωSiO2 ratio. Heat flux density increases with the increase of Li2O and/or B2O3 content in the mold slag which contains 30 % of Al2 O3. Compared with the heat flux density of common slag of peritectic steel, a suitable mold slag containing 4% of B2O3 and 4% of Li2O is designed. The heat flux density is 0. 645 MW/m^2 when ωAl2O3 /ωSiO2 = 1. 46. Under this experimental condition, the CaF2 crystals precipitate in the mold slag used for Al-TRIP steel.
