Since the 2050 mm hot strip mill was put into operation in 1989, Baosteel has made great achievements in increasing productivity, developing new process technologies and steel products and improving product quality. I...Since the 2050 mm hot strip mill was put into operation in 1989, Baosteel has made great achievements in increasing productivity, developing new process technologies and steel products and improving product quality. In the past 18 years from 1989 to 2007 ,Baosteel has constructed five hot strip mills with a total annual capacity of 19.8 Mt. Indices for technology standards, product categories and steel grades, product quality, both technically and economically, take the lead domestically or reached the world class level. As there are many hot strip mills that expected to be put into operation by the end of 2010 ,the overall annual capacity will exceed 30 Mt ,and the product will cover grain oriented （GO） Si steels and alloyed steels.展开更多
Types 316 and 304 stainless steel are two candidates for the storage vessels and piping systems of LABbased liquid scintillator（LS） in the JUNO experiment. LS aging experiments are carried out at temperatures of 40 ...Types 316 and 304 stainless steel are two candidates for the storage vessels and piping systems of LABbased liquid scintillator（LS） in the JUNO experiment. LS aging experiments are carried out at temperatures of 40 and 25. After 192 days aging at 40, the attenuation length of LS was reduced by 6% in a glass container, 12%in a type 304 stainless steel tank, and 10% in a type 316 stainless steel tank. At 25 in 304 and 316 stainless steel tanks, the attenuation length was reduced by 6% after 307 days. The light yield and the absorption spectrum were practically the same as that of the unaged sample. The concentration of element Fe in the LAB-based LS did not show a clear change. Type 316 and 304 stainless steel can be used as vessels and transportation pipeline material for LAB-based LS.展开更多
文摘Since the 2050 mm hot strip mill was put into operation in 1989, Baosteel has made great achievements in increasing productivity, developing new process technologies and steel products and improving product quality. In the past 18 years from 1989 to 2007 ,Baosteel has constructed five hot strip mills with a total annual capacity of 19.8 Mt. Indices for technology standards, product categories and steel grades, product quality, both technically and economically, take the lead domestically or reached the world class level. As there are many hot strip mills that expected to be put into operation by the end of 2010 ,the overall annual capacity will exceed 30 Mt ,and the product will cover grain oriented （GO） Si steels and alloyed steels.
基金Supported by Strategic Priority Research Program of the Chinese Academy of Sciences(XDA10010500)National Natural Science Foundation of China(11205183,11005117,11225525,11390384)
文摘Types 316 and 304 stainless steel are two candidates for the storage vessels and piping systems of LABbased liquid scintillator（LS） in the JUNO experiment. LS aging experiments are carried out at temperatures of 40 and 25. After 192 days aging at 40, the attenuation length of LS was reduced by 6% in a glass container, 12%in a type 304 stainless steel tank, and 10% in a type 316 stainless steel tank. At 25 in 304 and 316 stainless steel tanks, the attenuation length was reduced by 6% after 307 days. The light yield and the absorption spectrum were practically the same as that of the unaged sample. The concentration of element Fe in the LAB-based LS did not show a clear change. Type 316 and 304 stainless steel can be used as vessels and transportation pipeline material for LAB-based LS.
