Shenfu Dongsheng Coal Co. Ltd. of the Shenhua Group is a modern mining enterprise. To construct this first class world enterprise, Shendong Company placed em- phasis on construction and production, and complied the in...Shenfu Dongsheng Coal Co. Ltd. of the Shenhua Group is a modern mining enterprise. To construct this first class world enterprise, Shendong Company placed em- phasis on construction and production, and complied the internal administration with the international standards spontaneously. In order to strengthen the administration of the en- terprise, enhance the running efficiency of the systems, achieve the best administrative performances and goals, the Shendong Company began to engineer the integrated man- aging system(SDIMS) in early 2002. This article, as a case study, introduces the planning and construction processes of the SDIMS’s, and sums up the empirical experiences for modern and international mining enterprise.展开更多
Homogenization of physical properties and the chemical composition through the control of liquid metal flow is essentialduring the continuous casting production of billets. This work was aimed at obtaining improved fi...Homogenization of physical properties and the chemical composition through the control of liquid metal flow is essentialduring the continuous casting production of billets. This work was aimed at obtaining improved finished products viacontinuous casting that implements two magnetic fields. These fields were realized via two electromagnetic stirringprocesses implemented in a single process： one in the nozzle and one in the mold. The qualitative effects of applyingdouble electromagnetic stirring （EMS） were verified through numerical simulation of 178 mm × 178 mm square billetsexposed to double electromagnetic fields during the continuous casting process. The accuracy of the numerical calculationswas verified via physical experiments. In addition, the final simulation results were compared with the intermediate results,to determine the true effects of different EMS on the metal flow in the mold. The results revealed that casting using EMSwith different directions of magnetic field in the mold and the nozzle has the best effect on the distribution of the fluid flowand minimal influence on the stability of the meniscus and yields the minimum metal-jet penetration into the mold.展开更多
基金Supported by the Soft Science Planned Program of China(2004DGQ3D090) and the Returned Overseas Scholar Fund of Educational Ministry ofP.R.C(2003406)
文摘Shenfu Dongsheng Coal Co. Ltd. of the Shenhua Group is a modern mining enterprise. To construct this first class world enterprise, Shendong Company placed em- phasis on construction and production, and complied the internal administration with the international standards spontaneously. In order to strengthen the administration of the en- terprise, enhance the running efficiency of the systems, achieve the best administrative performances and goals, the Shendong Company began to engineer the integrated man- aging system(SDIMS) in early 2002. This article, as a case study, introduces the planning and construction processes of the SDIMS’s, and sums up the empirical experiences for modern and international mining enterprise.
基金financial support from the National Natural Science Foundation of China(Nos.U1560207and U51504057)the National Key R&D Program of China:Upgrading and Industrialization of Key Basic Material Technology(No.2017YFB0304400)
文摘Homogenization of physical properties and the chemical composition through the control of liquid metal flow is essentialduring the continuous casting production of billets. This work was aimed at obtaining improved finished products viacontinuous casting that implements two magnetic fields. These fields were realized via two electromagnetic stirringprocesses implemented in a single process： one in the nozzle and one in the mold. The qualitative effects of applyingdouble electromagnetic stirring （EMS） were verified through numerical simulation of 178 mm × 178 mm square billetsexposed to double electromagnetic fields during the continuous casting process. The accuracy of the numerical calculationswas verified via physical experiments. In addition, the final simulation results were compared with the intermediate results,to determine the true effects of different EMS on the metal flow in the mold. The results revealed that casting using EMSwith different directions of magnetic field in the mold and the nozzle has the best effect on the distribution of the fluid flowand minimal influence on the stability of the meniscus and yields the minimum metal-jet penetration into the mold.
