Regulation of a mass speed of feed of the granular filler to the slag pool during electroslag surfacing in a current-conducting mould

摘要

In electroslag surfacing using the granular filler in a current-conducting mould, a uniform distribution of the filler on the perimeter of the slag pool and its measured feed are often provided by means of vibrating proportioners. The preciselymeasured feed of the filler, along with its uniform distribution in the slag, plays an important role in providing the quality deposited metal. A device has been developed to regulate the mass speed of feeding the filler to the slag pool. This devicesconsists of a control unit and a vibration amplitude sensor, which allow the efficiency of the vibrating proportioner to be stabilized independently of a variation in mass of the filler in a hopper of the proportioner during operation.