H13 steel aluminium extrusion dies for cover plate 

Aluminium Extrusion Working Principle: During extrusion, under the strong extrusion force, the ingot is divided into several strands of metal by the knife (bridge part) of the mold and flows into the mold welding chamber. Under the conditions of high temperature, high pressure and high vacuum, the metal is re-welded and flows from the die hole to the needle. It flows out from the formed gap to form a hollow product of the required shape and size. The number of welds in the product is the same as the number of strands of metal flow. The working principle of extruded aluminum profile mold mainly includes the following steps: 1. Preheating: First, preheat the aluminum profile and extrusion die to a certain temperature. 2. Extrusion: The preheated aluminum profile is put into the extruder and extruded through the cavity of the mold under high pressure to form the desired prof…