Extrusion chamber extruding device of aluminum extruding machine and extrusion method

Abstract

The invention belongs to the field of metallurgical equipment, and relates to an extrusion technique in the process of extruding of an aluminum extruding machine, in particular to an extrusion chamber extruding device of an aluminum extruding machine and an extrusion method. The extruding device is characterized by at least comprising a master cylinder integrated with a back beam, a main plunger piston, a walking beam, a pressing rod, an extrusion chamber, an extrusion chamber moving cylinder, a pressing sleeve, a detection device, a front beam, a mold shaft and a mould; wherein the main plunger piston is arranged in the master cylinder, the outer side of the plunger piston is connected with the walking beam, and the pressing rod is mounted on the walking beam; and the cylinder body of the extrusion chamber moving cylinder is mounted on the master cylinder, the extending end of a plunger piston of extrusion chamber moving cylinder is mounted on the extrusion chamber, and the extrusion chamber is concentric with the pressing rod. The invention aims to provide the extrusion chamber extruding device of the aluminum extruding machine and the extrusion method to improve performances of extruded products.

Description

technical field [0001] The invention belongs to the field of metallurgical equipment, and relates to an extrusion technology in the extrusion process of an aluminum extrusion machine, specifically an extrusion device and an extrusion method for an extrusion chamber of an aluminum extrusion machine. Background technique [0002] In the conventional forward extrusion device, due to the relative movement between the billet and the inner wall of the extrusion chamber, the extrusion chamber has a great friction force on the billet, which largely offsets the forward extrusion At the same time, there is a large excess pressure and shrinkage in the forward extrusion. In reverse extrusion, there is a plug at the end of the extrusion rod to drive the extrusion chamber and the billet to advance together, and there is no friction between the extrusion chamber and the billet. Although the extrusion force is not offset, the extrusion chamber will The wall metal still flows slowly and ten...

AI Technical Summary

Problems solved by technology

[0002] In the conventional forward extrusion device, due to the relative movement between the billet and the inner wall of the extrusion chamber, the extrusion chamber has a great friction force on the billet, which largely offsets the forward extrusion At the same time, there is a large pressure surplus and shrinkage in the forward extrusion.

In reverse extrusion, there is a plug at the end of the extrusion rod to drive the extrusion chamber and the billet to advance together, and there is no friction between the extrusion chamber and the billet. Although the extrusion force is not offset, the extrusion chamber will The metal of the wall still flows slowly and is prone to shrinkage at the end of the tube extrusion

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