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升降台原用接触器—继电器控制系统,可靠性较差,经常造成设备事故。改造后使用带制动环节的双向可控硅交流开关,对提高中型轧机的产量、质量有较明显效果。这种新试制开关主回路采取交直流合一先进结构,线路简单,元件少。控制回路用 HTL 高抗干扰集成元件,按工艺要求设计而成。开关投入工业运行一年,显示出动作快速,可靠性高,检修工作量小,消耗少,造价低,无噪音等一系列优点,经济收益每年达十万元左右,受到生产工人的欢迎。
The original contact with the lifting platform - relay control system, poor reliability, often resulting in equipment accidents. After transformation, the bi-directional thyristor AC switch with brake is applied to improve the output and quality of medium-sized rolling mill with obvious effect. The main circuit of this new trial switch adopts the advanced structure of AC-DC integration, the circuit is simple, and the components are few. HTL control circuit with high anti-interference integrated components, designed according to process requirements. The switch has been put into industrial operation for one year and shows a series of advantages such as quick action, high reliability, small maintenance workload, low consumption, low cost and no noise. The economic benefit is about 100,000 Yuan each year, which is welcomed by the production workers.