摘要
铸造车间工频感应炉烘炉操作原是人工控制停送电,为解决人工操作劳动强度大、易出错的问题,进行了自动烘炉装置的研究设计。介绍了烘炉装置中自控程序的设计思想,具体设计中将可调时长脉冲和计数器结合起来,解决了PLC中时间继电器预置值只有十几分钟不能用于长时间延时控制的问题,实现了十几个小时的长时精确控制。
The baking operation of the power frequency induction furnace in foundry was manually controlled in the past, which was labour intensive and error-prone. A new automatic baking device was developed in this paper. In this design, the adjustable duration pulse and counter was combined to realize the ten hours long time accurate control.
出处
《铸造设备与工艺》
2013年第1期3-7,共5页
Foundry Equipment & Technology
关键词
工频感应炉
烘炉装置
程序设计
power frequency induction furnace, baking device, program design
