7022 aluminium alloy extruded product production technology

A technology of extruded products and production process, which is applied in the field of aluminum alloy processing, and can solve problems such as the difficulty in producing 7022 aluminum alloy extruded products

Inactive Publication Date: 2020-10-16
SOUTHWEST ALUMINUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of this, the object of the present invention is to provide a production process for 7022 aluminum alloy extrusion products, which can effectively solve the problem that 7022 aluminum alloy extrusion products are difficult to produce

Method used

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  • 7022 aluminium alloy extruded product production technology
  • 7022 aluminium alloy extruded product production technology
  • 7022 aluminium alloy extruded product production technology

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Embodiment Construction

[0037] The embodiment of the invention discloses a production process of 7022 aluminum alloy extruded products, so as to fill the blank of this technology and meet the needs of users.

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] see figure 1 , figure 1 It is a schematic flow chart of the production process of 7022 aluminum alloy extrusion products in a specific embodiment of the present invention.

[0040] In a specific embodiment, the production process of 7022 aluminum alloy extruded produ...

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Abstract

The invention discloses a 7022 aluminium alloy extruded product production technology which comprises the following steps: heating a casting ingot to 420-440 DEG C; extruding, specifically, conveyingthe casting ingot heated to 420-440 DEG C into an extrusion container, adopting an extruding die to extrude the casting ingot into an aluminium alloy product with a corresponding shape, controlling the temperature range of the extruding die to be 400-450 DEG C, controlling the container temperature range of an extruding machine to be 420-440 DEG C, and controlling the extruding speed range to be 0.3-1.5 m/min; quenching, specifically, carrying out solid solution hardening on an aluminium alloy extruded material at the solid solution temperature of 470+/-5 DEG C, and controlling the solid solution soaking time scope to be 30-250 minutes; carrying out tensile straightening; aging, specifically, carrying out manual aging on the extruded product after tensile straightening at the aging temperature of 140+/-5 DEG C, and controlling the aging soaking time scope to be 15-17 hours; sampling; and cutting to obtain a finished product. According to the 7022 aluminium alloy extruded product production technology, through curing of the extruding technology, the stretching technology and the thermal treatment technology, the mechanical property of the produced extruded product can meet the demand.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, and more specifically, relates to a production process of 7022 aluminum alloy extruded products. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for welded structural parts of aluminum alloy is increasing day by day, so that the research on weldability of aluminum alloy is also in-depth. Aluminum alloy is currently the most widely used alloy. [0003] 7022 alloy is a deformed aluminum alloy registered by the Aluminum Association of America. It has good processability, corrosion resistance, weldability, fatigue strength, etc. The yield strength of the alloy is close to the tensile strength and the specific strength is high. It i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/00
CPCB21C37/00
Inventor 王燕李晓风
Owner SOUTHWEST ALUMINUM GRP
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