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Production process of a 6-series aluminum alloy ultra-thin round tube extrusion profile

A technology for aluminum alloy profiles and extruded profiles, which is applied in the field of aluminum alloy production, can solve the problem that the aging system cannot meet the requirements of the size and mechanical properties of the ultra-thin aluminum alloy tube, and can make up for the low elongation after fracture and the entanglement of dislocations. Light, high elongation effect

Active Publication Date: 2020-01-31
CHINA ZHONGWANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, in order to solve the problem that the existing quenching method and aging system cannot meet the size and mechanical performance requirements of aluminum alloy ultra-thin round tubes, the present invention provides a production process for 6-series aluminum alloy ultra-thin round tube extrusion profiles

Method used

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  • Production process of a 6-series aluminum alloy ultra-thin round tube extrusion profile
  • Production process of a 6-series aluminum alloy ultra-thin round tube extrusion profile
  • Production process of a 6-series aluminum alloy ultra-thin round tube extrusion profile

Examples

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Effect test

Embodiment 1

[0027] A production process of a 6-series aluminum alloy ultra-thin round tube extruded profile, comprising the following steps:

[0028] A. Calculate the amount of each aluminum alloy raw material and prepare the aluminum alloy raw material according to the ratio. The mass percentage ratio of each element of the 6 series aluminum alloy raw material is as follows:

[0029]

[0030] Add the prepared aluminum alloy raw materials into the melting furnace and mix them evenly to melt them into liquid aluminum alloys, then melt and cast the liquid aluminum alloys into aluminum alloy ingots. Semi-continuous casting method of filtering and casting, the temperature of the melting furnace is controlled at 750°C, and refining is carried out with refining agent;

[0031] B. The aluminum alloy ingot obtained in step A is subjected to homogenization treatment, the temperature of the homogenization treatment is 450°C, and the holding time is 20h;

[0032] C. Place the aluminum alloy ingo...

Embodiment 2

[0037] The difference between embodiment 2 and embodiment 1 is that in step A, the mass percentage ratio of each element of the 6 series aluminum alloy raw material is as follows:

[0038]

Embodiment 3

[0040] The difference between Example 3 and Example 1 is that the temperature of the homogenization treatment in step B is 500° C., and the holding time is 10 h.

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Abstract

The invention belongs to the technical field of aluminum alloy production, and relates to a production process of a 6-series aluminum alloy ultra-thin round tube extrusion profile, aluminum alloy rawmaterials comprise 1.35-1.45% of Si, 0.21% of Fe, 0.05 % of Cu, 0.44 to 0.48% of Mn, 0.50 to 0.55% of Mg, 0.09% of Cr, 0.05% of Zn, 0.02% of Ti, <= 0.05% of other single impurities, <=0.15% of total impurities, and balance of Al, an aluminum alloy ingot prepared by the formula is subjected to extrusion, on-line water mist quenching treatment, stretching and straightening, and artificial aging, andthe aging system for the artificial aging is 145+ / -5DEG C *11h, existing quenching method and aging system are changed, the size and the mechanical properties of a finally prepared aluminum alloy ultra-thin round tube can meet the requirements of production preparation, the aluminum alloy tube is thin in wall, and the elongation after fracture is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy production, and relates to a production process of a 6-series aluminum alloy ultra-thin round tube extrusion profile. Background technique [0002] The so-called aluminum alloy is to add an appropriate amount of other elements to industrial pure aluminum to improve the nature of aluminum to meet various needs in industry and life. Due to the small specific gravity, high specific strength and good comprehensive performance of aluminum alloy, it is widely used in aviation industry, automobile manufacturing industry, power instrument, tool and civil utensil manufacturing, etc. [0003] In the research and development and production process of aluminum alloy, it is necessary to analyze the chemical composition in aluminum alloy, so as to achieve the purpose of strictly controlling the content of each chemical composition, thereby avoiding the loss of control of the composition before the furnac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C21/02C22F1/043C22F1/02B21C23/02
CPCB21C23/02C22C1/026C22C21/02C22F1/02C22F1/043
Inventor 李佳宁周通刘生辉滕飞赵釜玉
Owner CHINA ZHONGWANG
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