Extrusion method for high brittleness aluminum alloy and high brittleness aluminum alloy extrusion part

Abstract

The invention discloses an extrusion method for a high brittleness aluminum alloy. The extrusion method comprises the following steps: heating and loading a plastic aluminum alloy ingot blank and a high brittleness aluminum alloy ingot blank to an extrusion barrel, wherein the plastic aluminum alloy ingot blank is located at the front end of the extrusion barrel and the high brittleness aluminum alloy ingot blank is located at the back end of the extrusion barrel; and carrying out upsetting, extruding, straightening and peeling to obtain a high brittleness aluminum alloy extrusion part product. By placing the plastic aluminum alloy ingot blank in front of the high brittleness aluminum alloy ingot blank and controlling the preheating temperatures of the plastic aluminum alloy ingot blank and the high brittleness aluminum alloy ingot blank, in the extruding process, an extrusion die is not in contact with the high brittleness aluminum alloy ingot blank, so that the extruding rate of finished products is increased. The process is simple, a package sheath is not manufactured separately, and the process can be fused with an existing common extrusion process, so that the high brittlenessaluminum alloy extrusion process has a large-scale production capacity.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a high brittle aluminum alloy extrusion method and a high brittle aluminum alloy extrusion. Background technique [0002] Generally, high-brittle aluminum alloys are easy to crack when directly extruded due to their high brittleness. In the prior art, pure aluminum is mostly used for sheath extrusion; this process requires machining pure aluminum in advance to form a sheath with a suitable size, and then Putting the high brittle aluminum alloy ingot to be extruded into the sheath for extrusion; this extrusion process avoids direct contact between the extrusion cylinder and the brittle aluminum alloy, and improves the yield of the extrusion process. However, this process requires sleeve manufacturing. The existing sleeve manufacturing process is expensive and cumbersome, which greatly restricts the production of high brittle aluminum alloys, so high brittle aluminum alloys...

AI Technical Summary

Problems solved by technology

However, this process requires sleeve manufacturing. The existing sleeve manufacturing process is expensive and cumbersome, which greatly restricts the production of high brittle aluminum alloys. Therefore, large-scale production of high brittle aluminum alloys is not yet possible.

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