【作者】 陈建军；

【导师】 徐林； 朱俊红；

【作者基本信息】 东北大学 ， 控制工程（专业学位）， 2011， 硕士

【摘要】 耐候钢,即耐大气腐蚀钢,与普碳钢相比,耐候钢在大气中具有更优秀的抗蚀性能,可用于铁道、车辆、桥梁、塔架等长期暴露在大气中使用的钢结构,有着广泛的应用前境。在目前国内普通钢材大量过剩的背景下,为了抢占耐候钢的市场份额,钢铁公司都在加大科技投入,努力提高耐候钢的质量水平,以适应市场发展的需要。要提高耐候钢的生产水平,科研人员需要开发新产品,这必然需要大量的耐腐蚀性试验。而大气中耐候钢稳定化锈层的生成需要几年的时间,周期过长,所以通常采用实验室加速试验的方法,加速稳定化锈层的生成,这就需要设计研究制作相应的加速腐蚀试验装置,以满足科研要求。本文以首钢总公司为背景,以铁道用耐候钢为前提,对加速腐蚀试验方法及其配套的加速腐蚀设备进行深入研究分析,设计制造了适合首钢科研需要的加速腐蚀设备,对装置控制系统进行了详细的设计,包括系统总体设计、硬件结构设计、控制软件及监控软件开发等,基于模糊控制建立了耐腐蚀性模糊综合评价,基于Z-N方法实现了PID参数的自整定。该装置由PLC对设备的运转及试验环境进行控制,通过触摸屏与PLC通讯,实现对试验参数的设定、设备启停的操作和数据的显示存储记录等功能,具有可靠性好、一致性和重复性高、操作简便等特点。通过对装置的组装调试,达到了最初的设计要求,最终满足了用户的使用。现该装置已投入使用,并完成了大量的科研试验,为科研提供了有力的支持。更多还原

【Abstract】 Compared with carbon steel, the corrosion resistant steel has a more excellent corrosion resistance, which can be used for railways, vehicles, bridges, towers and other use of steel which long-term exposures to the atmosphere. In order to expand market share and meet market needs, iron and steel companies are increasing investments in technology to improve the quality of the corrosion resistant steel.To improve the quality of the steel, the researchers need to do lots of tests on resistance to corrosion to develop new products. Accelerated test method in the laboratory is usually used to accelerate the generation of stable rust layer, which may needs a few years to generate naturally. Therefore, it requires to design a set of accelerated corrosion test equipment to meet the scientific requirements.Taking Shougang Corporation and the corrosion resistant steel for railways as the background, the paper analyzes the accelerated corrosion test methods and supporting equipment, designs and manufactures a set of accelerated corrosion test equipment. The paper introduces the design and implementation of the equipment, including the overall design, the structural design and construction of the hardware, the development of the controlling software and the monitoring software, the establishment of fuzzy evaluation system and Based on Z-N method to achieve a self-tuning PID parameters.The test equipment uses PLC to control operations and the environment. Through the communication between touch screen and PLC, it can give the experimental parameters, control the operation of starting and stopping and display or storage the data. The equipment has the advantages of good reliability, consistency and high repeatability, operation simply and so on. It meets the original design requirements, has been put into use, and completed a large number of research trials.更多还原