灰铸铁成份热分析的新方法

本文探讨的是一种用热分析法快速测定灰铸铁成份的新方法.采用普通样杯,不直接测TL’、TE’,而是通过测定初晶平台、初晶平台到共晶、共晶三段时间及初晶到共晶的温度差△T’、冷却速度V_t来确定铁水的化学成份.这种方法考虑了浇注温度及冷却条件的影响,避免了测温的不准确性,提高热分析方法的可靠性和实用性.建立了CEV、C%、Si%的数学模型.     

人类灵魂的拷问——《一桶白葡萄酒》的及物性分析

运用体现概念功能的及物性系统对埃德加·爱伦·坡的小说《一桶白葡萄酒》进行文体分析,从及物性这一角度出发,深度剖析了作者对及物性系统的选择和该系统在塑造人物、组织情节以及表达深刻主题方面的作用,从而揭示出这些文体选择所传递的深层含义。     

炼钢连铸计划调度优化系统

钢铁企业的炼钢连铸计划调度问题一直是学术界和企业界研究的热门课题.炼钢连铸生产计划调度系统是钢铁企业制造执行系统的重要组成部分,在企业的生产管理中起着承上启下的作用.本文首先简述了炼钢连铸计划调度理论的发展历程和生产工艺流程,并进一步描述了炼钢连铸计划编制的流程.针对炼钢连铸计划调度的现场要求,架构了炼钢连铸计划调度优化系统的功能模块,并较详细地说明了各功能模块的功能特点.该系统不仅能对静态调度计划应用多种优化方法进行编制,而且对复杂生产环境的各类响应事件可以做到快速响应,满足动态调度的要求,保证生产的稳定顺行.     

Study on Compatibility between Converters and Casting Machines for Daily Steelmaking and Continuous Casting Scheduling

In this paper, daily production scheduling is studied based on the Third Steelmaking Plant of Wuhan Iron and steel corporation (WISCO). To make sure the daily production plan is feasible, method of casting gToup is established, and the compatibility between two converters and three continuous casting devices in the Third Steelmaking Plant of WISCO is analyzed. The process flow chart of daily production scheduling is given in this paper. Then, algorithms and procedures for the simulation of daily production plan is developed. Using the actual data from the Third Steelmaking Plant, the feasible daily steelmaking plan and cast plan are given. The plan contains 7 groups of cast plan, figured out 54 converters, and a- bout 13,500 tons steel.