Method for manufacturing aluminum sheet circle for soft aluminum tube by aluminum rod

A technology of aluminum discs and aluminum rods, applied in metal processing equipment and other directions, can solve the problems of pitting, pinholes, scabs, hair pulling, complicated steps, etc., so as to save the car skin process, change the processing method, and realize automatic production. Effect

Inactive Publication Date: 2012-07-18
顾平
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the cumbersome steps in the prior art, pitting, pinholes, scabs, roughening and other defects in the production, and provide a kind of aluminum alloy that does not need the wagon chamfering step and has the passivation technology of the cutter. disc method

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  • Method for manufacturing aluminum sheet circle for soft aluminum tube by aluminum rod
  • Method for manufacturing aluminum sheet circle for soft aluminum tube by aluminum rod
  • Method for manufacturing aluminum sheet circle for soft aluminum tube by aluminum rod

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Embodiment Construction

[0044] The present invention is described further in conjunction with accompanying drawing, and the manufacturing technology of this device is very clear to those skilled in the art.

[0045] Concrete production process of the present invention is as Figure 10 shown.

[0046] (1) Raw materials: directly purchase electrical round aluminum rods manufactured by electrolytic aluminum factories that meet the GB / T3954-2001 standard, or aluminum rods produced by other methods with a purity greater than 99.50%. When extruded aluminum rods are used as raw materials, they can be directly imported Directional extrusion process;

[0047] (2) Axial cold deformation: (drawing, drawing) In the production, the aluminum rod is subjected to axial cold deformation by wire drawing or drawing process (generally, the deformation amount is 20%-30%), and the details can be seen in the next process. It depends on the process matching and the smoothness of the surface of the aluminum rod. It can be ...

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Abstract

The invention relates to a production method for manufacturing an aluminum sheet circle for a soft aluminum tube by an aluminum rod, in particular to a method for extruding and punching the aluminum sheet circle. The method comprises the following steps of: selecting a raw material: the aluminum rod; carrying out axial cold deformation (wire drawing and drawing) on the aluminum rod; utilizing a cold heading machine or an automatic slitting punching machine to carry out directional extrusion on a cracked layer formed on a split blank, so as to shorten the area of the cracked layer to a corresponding range; carrying out secondary cold heading molding; carrying out complete annealing treatment on the aluminum sheet circle; carrying out surface treatment on a finished product; and checking and packaging. Compared with the prior art, a material returning phenomenon caused by punching through a traditional process is avoided and a directional extrusion and passivation technology is utilized, so that a turning procedure for overcoming the defects of pocking marks, pinholes and the like of the finished soft aluminum tube, which are caused by cutting off a cutting surface of the blank, is saved; the production yield is improved to be more than 99% from 60-70% of the traditional process, and the automatic production is wholly realized, so that the production efficiency is improved.

Description

[technical field] [0001] The invention relates to a production method of aluminum discs for manufacturing aluminum tubes from aluminum rods, in particular to a method for extrusion punching aluminum discs. [Background technique] [0002] The soft aluminum tube generally has a wall thickness of less than 0.1mm, and after annealing treatment, it is finally processed by various surface spraying. Damage and production costs are very important in the production process. Conventional production methods include calendering punching method and extrusion punching method. [0003] Calender punching method, its manufacturing process is: raw material (aluminum ingot or other recycled materials) → melting → ingot casting → hot rolling → cold rolling → slitting → punching → annealing → surface treatment → packaging; its advantages are: mature process 1. The equipment has strong versatility; its disadvantages are: cumbersome process, high energy consumption, low yield (35%-70%), low qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21J5/06
Inventor 顾平
Owner 顾平
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