How to reconnect the wire of the 冷凍肉切片機

If the slicer is broken, first cut the loose wire at the slicer, and then install two 10 cm steel heads from the guide wheel. Then use coarse sandpaper to change the diameter of the two ends of the steel wire to 1/2-2/3 of the original steel wire. The length of the steel wire exceeds 5 cm, and the sand grains on the surface of the steel wire in the fine sandpaper are smooth. The two steel wire heads are cleaned with alcohol. Then use an electric soldering iron, solder wire and solder paste to weld the two sands of the 5 cm steel wire head together.