A method for manufacturing aluminum discs for soft aluminum tubes from aluminum rods
A technology of aluminum discs and aluminum rods, which is applied to metal processing equipment and other directions, can solve the problems of pitting, pinholes, scabs, hair pulling, and complicated steps, so as to save the car skin process, change the processing method, and improve the production efficiency. Effect
Inactive Publication Date: 2014-10-08
顾平
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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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[0044] The present invention will be further explained in conjunction with the drawings. The manufacturing technology of this device is very clear to those in the field.
[0045] The specific manufacturing process of the present invention is as follows Picture 10 Shown.
[0046] (1) Raw materials: directly purchase electrical round aluminum rods manufactured by electrolytic aluminum plants 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 entered Directional extrusion process;
[0047] (2) Axial cold deformation: (wire drawing, drawing) Axial cold deformation of the aluminum rod by wire drawing or drawing process (usually 20%-30% deformation), depending on the details of the next process It depends on the process matching and the surface smoothness of the aluminum rod. For details, it may be appropriate to see that the surface of the aluminum...
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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 wafers for manufacturing aluminum tubes from aluminum rods, in particular to a method for extruding and punching aluminum wafers. [Background technique] [0002] The general wall thickness of soft aluminum pipe is 0.1mm or less, and after annealing treatment, it is finally processed by various surface spraying, which is also called hose in the industry; general hose is made of aluminum wafer, because the quality of aluminum wafer is good Damage and production costs are very important in the production process. Conventional production methods include calendering and punching methods. [0003] The calendering and punching method, its manufacturing process is: raw material (aluminum ingot or other recycled materials) → smelting → ingot casting → hot rolling → cold rolling → slitting → punching → annealing → surface treatment → packaging; its advantages are: mature technology , The equipment has strong ...
Claims
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IPC IPC(8): B23P15/00B21J5/06
Inventor 顾平
Owner 顾平