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Repair of copper bar burned out in induction furnace

Time:2021-03-26   Nums:3216

There are two main reasons for burning through of copper bar in the process of using induction furnace: one is careless operation or too short nozzle during pouring, splashing molten iron adheres to copper bar to burn through; the other is that molten iron overflows to cause burning through of copper bar after lining of induction furnace is burned through.

The cooling water overflows after the copper bar is burned out, so the furnace must be shut down immediately for repair. As the copper bar is installed in the furnace shell, it is inconvenient to weld, so it needs to be removed during repair. In the past, the repair process of copper bars was as follows: tilting the furnace to cast iron, stopping the furnace for cooling, knocking out the furnace lining, taking out the copper bars, welding the copper bars, installing the copper bars, building a new furnace lining, drying the furnace and starting the furnace.

This repair method wastes at least one lining, three shifts of working hours, and more electricity.

The following introduces a kind of adhesive repair method to repair copper bar, which is more energy-saving and time-saving.

For the first cause of copper bar burn through, the furnace can be shut down temporarily. At the same time, the 1-2mm thick copper sheet should be cut into small pieces, and the area should be slightly larger than the area of copper bar burn through. Then use saw blade or hand grinding wheel to remove the residue of copper bar burn through, and use sandpaper to polish it clean. Quickly mix the setting epoxy resin and curing agent, and stick the trimmed copper sheet on the copper bar burn through. After a few minutes, epoxy resin is used Resin curing, can form a very high bond strength of copper bar, at this time can be re opened.

For the second reason, the repair process is as follows: tilting the furnace to cast iron, stopping the furnace, repairing the lining, sticking the copper bar, and starting the furnace. Compared with the traditional welding repair, this repair process also saves a furnace lining and a lot of man hours and power.

Yiphee Electric Furnace Co.,Ltd specializes in producing induction smelting furnace.Tel(WhatsApp):+86-13450756789, yiphee@yiphee.cn

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