Automatic ingoting control system for vacuum electron beam furnace and control method of automatic ingoting control system

Abstract

The invention discloses an automatic ingoting control system for a vacuum electron beam furnace and a control method of the automatic ingoting control system. The automatic ingoting control system includes an industrial control computer, a PLC, a servo motor actuator and an ingot pulling motor, wherein the industrial control computer is connected with the PLC through an industrial ethernet bus, the servo control communication port of the PLC is connected with the communication port of the servo motor actuator through the industrial ethernet bus, the motor power supply input port of the servo motor actuator is connected with a three-phase power grid through a filter, a contactor and an air switch, the servo motor actuator drives the ingot pulling motor, the data transfer port of a high-speed encoder mounted on the ingot pulling motor is connected with the feedback signal receiving port of the servo motor actuator, and an ingot rod is connected with an output shaft of the ingot pulling motor through a bearing. According to the automatic ingoting control system, automatic control is achieved in the entire process, manual interference is not needed, smoothness of the outer surface of an ingot metal after ingoting is guaranteed, the rate of finished products is high, the production efficiency is high, and the service life of a crucible is greatly prolonged.

Description

technical field [0001] The invention relates to an automatic ingot casting control system for a vacuum electron beam furnace and a control method thereof, belonging to the technical field of automatic ingot casting control for vacuum smelting. Background technique [0002] The electron beam furnace is a kind of electron beam furnace that uses one or more cathode electron guns to emit high-energy electron beams in a vacuum environment to bombard the molten material so that the kinetic energy of the electrons can be quickly converted into heat energy, and then the material is melted and dropped into the cold water copper crucible. The control system of the smelting equipment for solidifying ingots is mainly composed of three parts: the first part is the vacuum unit control system, the second part is the electron gun high voltage and coil power control system, and the third part is the feeding and ingot dragging control system . During the production process, the metal bar is ...

AI Technical Summary

Problems solved by technology

From the actual implementation, it can be found that the up and down movement of the ingot bar is directly controlled by the operator. This manual control method will be affected by human factors such as the operator's work experience and work attitude, resulting in the metal ingots coming out of the ingot. The smoothness of the outer surface cannot be guaranteed, the yield rate is not high, and the inner wall of the crucible is usually worn, which greatly shortens the service life of the crucible, resulting in low production efficiency

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