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四、计算装置的应用 使用单元组合仪表、运算放大器或者专用的小型模拟计算机组成计算系统进行局部控制,不仅投资少、容易掌握、便于维修,而且能收到很好的效果,下面将举几个在连铸机上应用这种计算装置的实例。 1.连铸机的自动起动 连铸机起动时可分为两阶段。第一阶段先把引锭杆由结晶器底部插入,然后钢水浇注到结晶器内。此时引锭杆暂时不往下拉,结晶器内金属液面以恒速上升,直到某个规
Fourth, the application of computing devices The use of unit combination meter, op amp or a dedicated small analog computer components of the computing system for local control, not only less investment, easy to grasp, easy maintenance, and can receive good results, the following will give a few An example of such a computing device is applied on a caster. 1. Caster automatic start Caster start-up can be divided into two phases. In the first stage, the dummy bar is inserted from the bottom of the mold, and the molten steel is poured into the mold. At this moment the dummy bar does not pull down temporarily, and the liquid level in the mold rises at a constant speed until a certain gauge