Feed method for electroslag remelting furnace

A feed method for electroslag remelting furnace, the electroslag furnace comprising:

• a main body providing with a post, an electrode, and a crystallizer;
• and
• a wire feeding device, which comprises:
• a wire feeder provided above the crystallizer;
• a lifter,
• an insulating sleeve mounted to the lifter and configured to be insertable into the crystallizer;
• a length sensor and a position sensor respectively used for acquiring wire feeding length information of the wire, and position information of the insulating sleeve in the crystallizer;
• a weighing sensor used for acquiring weight information of the electrode;
• and
• a control system connected with the weighing sensor, length sensor, position sensor, wire feeder, and the lifter, wherein the control system is used for acquiring and processing the weight information, the length information and the position information, and feeding back a control instruction to the wire feeder and lifter,
• the feed method comprises the following steps:
• mounting a wire to the wire feeder, activating the wire feeder, passing the wire through a straightening machine and the insulating sleeve in sequence, and then stopping the wire feeder;
• mounting the electrode requiring electroslag to the electroslag remelting furnace and placing the electrode into the crystallizer;
• and
• activating the control system to start electroslag production, wherein the control system processes the weight information, length information, and position information, and compares the same with a preset process parameter to form a comparison result;
• the control system sends a control instruction according to the comparison result and automatically adjusts wire feeding speed of the wire feeder and a lifting height of the lifter;
• after processing the weight information, the control system obtains a liquid level height of alloy liquid formed in the crystallizer by electroslag;
• a constant distance between the insulating sleeve and a liquid level of the alloy liquid constant is kept by the control system according to the liquid level height and the position information.