Cored wire is to wrap alloy powder with a certain composition and particle size in a steel skin of a certain thickness and width through a winding equipment to form a cable-shaped core-covered wire roll with appropriate strength and filling rate, and then through a wire feeding equipment to It is fed into the processing bag with a bag cover at a certain speed to realize the spheroidization process.
Its essence is to feed the spheroidizing agent slowly into the bottom of the processing bag using the steel skin as a carrier to realize the adding process of the spheroidizing agent.
Process features
| Wire feeding process | Dust removal is easy and the workshop environment is significantly improved | High degree of automation and low labor intensity for workers | Residual magnesium has small fluctuations and high quality stability | The amount of alloy added is small, the amount of recycled materials is large, and the spheroidization cost is low. | high productivity |
Stability of spheroidization: The traditional punching method is used to produce ductile iron, which is calculated based on the weight and temperature of the planned spheroidized molten iron.
The amount of spheroidizing agent must be added to the bottom of the spheroidizing package in advance, and then the molten iron is discharged. When the weight of the molten iron and the temperature of the molten iron change, the amount of spheroidizing agent cannot be adjusted, causing the residual magnesium in the molten iron after spheroidization to fluctuate greatly; When rushing into the spheroidizing process at the same time, most of the spheroidizing agents and inoculants need to be manually weighed. Inaccuracies in weighing caused by human factors aggravate the instability of spheroidizing. In the wire-feeding spheroidizing process, the molten iron is discharged first, and then the When the weight and temperature of the molten iron are constant, then the spheroidized core-covered wire is added according to the weight and temperature of the molten iron. The length (amount) of the spheroidized core-covered wire can be adjusted at any time according to the actual weight and temperature of each package of molten iron, thereby ensuring The residual magnesium in the molten iron after spheroidization fluctuates less. The entire wire feeding spheroidization process is automated, with accurate quantification and few human errors.
