.626. 北京科技大学学报 第29卷 [8]王益群，吴晓明，曹栋璞，等.热连轧卷取机电液伺服控制系 重技术，2005(4)：20 统的设计.液压气动与密封，2002(5)：1 [10]赵丙龙，王宏兵，马忠.卷取机电液伺服踏步控制系统仿真 [9]唐超.菜钢1500mm热连轧机AC液压系统设计.重工与起 及试验研究.机械工程与自动化，2005(6)：60 TDCbased wrapping roll automatic jump control system for a 1500mm hot strip mill coiler ZHANG Dazhi,ZHOU Fang,SHENTU Nankai,LI Haibin2),MI Chunxia2),SHI Y uanhai2) 1)National Engineering Research Center for Advanced Rolling Technology.University of Science and Technology Beijing.Beijing 100083.China 2)Laiwu Iron and Steel (Group)Corporation,Laiwu 271100.China ABSTRACT The Laigang 1500mm hot strip mill is a set of fully automatic hot strip mill designed and manu- factured by us.The automatic jump control (AJC)of wrapping rolls is very important for the final quality of products.The system is the first set of AJC system based on Siemens TDC and designed by us.The system functions were programmed in Siemens STEP7 and friendly HMI was designed with Siemens WinCC.The sys- tem,with comprehensive functions and high precision,was applied on the Laigang 1500mm hot strip mill and satisfactory results were obtained. KEY WORDS hot strip mill;coiler;wrapping roll;control system;automatic jump control (上接第606页) Layer-by-layer self-assembled bio mineralized material made by polyelectrolyte SUN Chunbao,XING Y,DUAN Xuqin),HAO Juanling2) 1)Civil and Environmental Engineering School.University of Science and Technology Beijing.Beijing 100083.China 2)Semiconductor Manufacture International Corporation (Beijing).Beijing 100067.China ABSTRACI Utilizing the manual simulation method in laboratory a self-assemble multilayer was made through anion-cation polyelectrolyte weak solution.The glass substrate equipped with the self-assemble film was put into the simulated body fluid SBF,and under proper conditions the aggradation of hydroxyl apatite was induced on the film.It is shown that the pH value of the SBF solution has much influence on crystallization of hydroxyl ap- atite.The most compact crystal was observed at pH 7.40 with the self-assembled film and simulated body fluid. The inducing experiments of bio mineralization indicate that the self-assemble film made from the polyelectrolyte weak solution can be successfully used in the study of bio mineralization materials. KEY WORDS bio-mineralization;self-assemble film;simulated body fluid:organic matrix［8］ 王益群‚吴晓明‚曹栋璞‚等．热连轧卷取机电液伺服控制系 统的设计．液压气动与密封‚2002（5）：1 ［9］ 唐超．莱钢1500mm 热连轧机 AJC 液压系统设计．重工与起 重技术‚2005（4）：20 ［10］ 赵丙龙‚王宏兵‚马忠．卷取机电液伺服踏步控制系统仿真 及试验研究．机械工程与自动化‚2005（6）：60 TDC-based wrapping roll automatic jump control system for a 1500mm hot strip mill coiler ZHA NG Daz hi 1）‚ZHOU Fang 1）‚SHENTU Nankai 1）‚LI Haibin 2）‚MI Chunxia 2）‚SHI Y uanhai 2） 1） National Engineering Research Center for Advanced Rolling Technology‚University of Science and Technology Beijing‚Beijing100083‚China 2） Laiwu Iron and Steel （Group） Corporation‚Laiwu271100‚China ABSTRACT The Laigang1500mm hot strip mill is a set of fully automatic hot strip mill designed and manu￾factured by us．The automatic jump control （AJC） of wrapping rolls is very important for the final quality of products．The system is the first set of AJC system based on Siemens TDC and designed by us．The system functions were programmed in Siemens STEP7and friendly HMI was designed with Siemens WinCC．The sys￾tem‚with comprehensive functions and high precision‚was applied on the Laigang1500mm hot strip mill and satisfactory results were obtained． KEY WORDS hot strip mill；coiler；wrapping roll；control system；automatic jump control （上接第606页） Layer-by-layer self-assembled bio-mineralized material made by polyelectrolyte SUN Chunbao 1）‚XING Y i 1）‚DUA N Xuqin 1）‚HAO Juanling 2） 1） Civil and Environmental Engineering School‚University of Science and Technology Beijing‚Beijing100083‚China 2） Semiconductor Manufacture International Corporation （Beijing）‚Beijing100067‚China ABSTRACT Utilizing the manual simulation method in laboratory a self-assemble multilayer was made through anion-cation polyelectrolyte weak solution．The glass substrate equipped with the self-assemble film was put into the simulated body fluid SBF‚and under proper conditions the aggradation of hydroxyl apatite was induced on the film．It is shown that the pH value of the SBF solution has much influence on crystallization of hydroxyl ap￾atite．The most compact crystal was observed at pH7∙40with the self-assembled film and simulated body fluid． The inducing experiments of bio-mineralization indicate that the self-assemble film made from the polyelectrolyte weak solution can be successfully used in the study of bio-mineralization materials． KEY WORDS bio-mineralization；self-assemble film；simulated body fluid；organic matrix ·626· 北 京 科 技 大 学 学 报 第29卷