Due to the poor wear of the inner diameter of the extrusion cylinder, the gap between the extrusion pad and the cylinder is too large; Oil and sewage adhered to the extrusion cylinder and the extrusion pad; There are air holes, sand holes and oil stains on the surface of the ingot, and the surface of the ingot is too rough; The temperature of extrusion cylinder and ingot is too high, and the filling speed is too fast; The die is smeared during extrusion.
More +The material of gear forgings shall be the same as that of parts, and the chemical composition added shall conform to relevant addition standards. A bill of materials shall also be issued.
Before work, check whether the relevant electromechanical equipment, molds, tools, auxiliary facilities and hydraulic pipes are safe and reliable, and lubricate the equipment, otherwise, they shall not be used. Before working in the forging plant, the hammer head, hammer rod, die and tools shall be preheated.
The general process flow of die forging mainly includes blanking, heating, oxide skin removal, blank making, die forging, trimming, heat treatment, surface cleaning, correction, inspection and other processes.
Due to the poor wear of the inner diameter of the extrusion cylinder, the gap between the extrusion pad and the cylinder is too large; Oil and sewage adhered to the extrusion cylinder and the extrusion pad; There are air holes, sand holes and oil stains on the surface of the ingot, and the surface of the ingot is too rough; The temperature of extrusion cylinder and ingot is too high, and the filling speed is too fast; The die is smeared during extrusion.
Gear forgings are also called transmission machinery equipment, which is different from the common teeth in life. It is mainly a mechanical element with teeth, which can continuously mesh and transmit motion and power. It is mainly used in automobile manufacturing, mining machinery, petrochemical and other industries.