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本文设计了一种对船用大厚钢板焊接预热温度进行自动控制的系统。其原理是利用单片机作为控制器件对船用大厚钢板焊接预热温度进行自动控制,采用交流接触器作为履带式电加热器件的控制开关,采用K型热电偶作为温度测量传感器,并利用数码管来显示设置温度和测量钢板实际温度。通过系统调试表明:本文所设计的系统能够使得钢板的预热温度控制在设定的范围内,且系统稳定性好。
In this paper, a system for automatic control of welding preheating temperature of large thick steel plates is designed. The principle is to use SCM as a control device to automatically control the welding preheating temperature of marine heavy thick steel plate. The AC contactor is used as the control switch of the crawler type electric heating device. The K type thermocouple is used as the temperature measuring sensor and the digital tube Displays the set temperature and the actual temperature of the plate. Through the system debugging shows: The system designed in this paper can make the plate preheat temperature control in the set range, and the system stability is good.