Induction preheating is widely used in the automotive, machinery, aviation, electrical, and shipbuilding industries. It is to heat the material or workpiece to be welded by induction heating technology before welding. make it meet the requirements of the process. For example, preheating welding of truck beams, preheating before welding of oil and gas pipelines, etc. Combined with an infrared thermometer, induction preheating is programmed according to its own program control, allowing precise control of the required preheating temperature and heating time.