The extrusion process of the gold aluminum bar (rod) is that the ingot is loaded into an extrusion cylinder and a pressure is applied to the metal by the extrusion shaft to extrude it from a die hole of a given shape and size to produce a plastic deformation to obtain the desired extrusion. A type of pressure product.
processing method. According to the direction of metal flow in extrusion, extrusion can be divided into forward extrusion, reverse extrusion, and combined extrusion. In forward extrusion, the direction of movement of the extrusion axis coincides with the flow direction of the extruded metal.
When squeezed, the extrusion axis moves in the opposite direction to the flow of the extruded metal. According to the heating temperature of the billet, the extrusion can be divided into hot extrusion, cold extrusion and warm extrusion. Hot extrusion is the extrusion of the billet above the recrystallization temperature
Cold extrusion is performed at room temperature, with the warm extrusion in between.
In the production practice, suitable production methods can be selected based on the alloys, varieties, specifications, uses, quantity and quality requirements, market requirements, equipment configuration and national conditions.
