Method for manufacturing aluminum sheet circle blank for cold extrusion by aluminum rod

A technology of cold extrusion and aluminum wafers, which is applied in the field of aluminum wafer manufacturing, can solve the problems of affecting the yield, unfavorable manufacturing cost, and insufficient elongation, so as to reduce production costs, reduce the number of recycled materials, and increase the yield Effect
CN102319984AActive Publication Date: 2012-01-18SHANGHAI YUNDAO ALUMINUM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI YUNDAO ALUMINUM
Publication Date
2012-01-18

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Abstract

The invention relates to the technical field of manufacturing of an aluminum sheet circle, in particular to a method for manufacturing an aluminum sheet circle blank for cold extrusion by an aluminum rod. The method comprises the following steps of: (1) selecting the aluminum rod serving as the raw material; (2) carrying out axial cold deformation on the aluminum rod; (3) carrying out secondary axial cold deformation by a cold header or an automatic splitting punching machine, so that a crystal structure and a displacement direction, which are generated by extrusion, can be matched with the crystal structure and the displacement direction of the product, which are required when the product is applied to a cold extrusion aluminum tube or aluminum tank production process; (4) processing a wagon chamfer angle of a cold heading blank; (5) carrying out annealing processing, wherein commonly, a temperature is selected in the range of 460 DEG C to 520 DEG C and the constant temperature time is selected in the range of 3 to 8 hours; (6) carrying out surface processing, so that the aluminum sheet circle has better lubricant adhesive ability; and (7) packaging a finished product. Due to theadoption of the method, the production cost of the aluminum sheet circle is greatly reduced, the return times are reduced, the yield is improved and the product obtains the maximum elongation by axial cold deformation for twice.
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Description

[technical field]

[0001] The invention relates to the technical field of manufacturing aluminum discs, in particular to a method for manufacturing aluminum disc blanks for cold extrusion from aluminum rods. [Background technique]

[0002] Aluminum discs can generally be divided into two categories: soft aluminum tubes and hard aluminum cans. Generally, tubes with a wall thickness of less than 0.10mm are called hoses (such as toothpaste tubes, glue tubes, medical ointment tubes, Shoe polish tubes, etc.); those with a wall thickness of 0.30mm or more are called hard aluminum tubes (such as mascara tubes, marker pen tubes, cosmetic lipstick tubes, capacitor tubes, pesticide tubes, mousse tubes, aerosol cans, etc.).

[0003] The traditional aluminum wafer manufacturing method is divided into the following two situations:

[0004] A. Calender punching method, its manufacturing process is: raw material (aluminum ingot or other recycled materials) → melting → ingot casting → hot r...

Claims

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