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Alloy for pipe, and manufacturing process thereof

A pipe and alloy technology, which is applied in the field of pipe alloys, can solve problems such as low tensile strength, limit industrial applications, and inflexibility, and achieve the effect of expanding the scope of application

Inactive Publication Date: 2019-07-09
西安康茂恒新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The 7 series aluminum alloy mainly uses zinc as the main alloy, and the composition ratio reaches 6%. The existing 7075 aluminum alloy pipes in China belong to the 7 series aluminum alloy. Due to the high proportion of other metals, the tensile strength is low, the elongation is small, and it cannot be bent. , which limits its industrial application, for example, it is generally not used as a material for the frame, etc.

Method used

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  • Alloy for pipe, and manufacturing process thereof
  • Alloy for pipe, and manufacturing process thereof
  • Alloy for pipe, and manufacturing process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0020] An alloy for pipes, prepared from the following raw materials in percentage by weight: Si: 0.072%, Fe: 0.285%, Cu: 1.224%, Mn: 0.067%, Mg: 2.007%, Cr: 0.243%, Zn: 4.629%, Ti: 0.027%, the total amount of impurities is less than 0.05%, and the balance is Al.

Embodiment 2

[0022] An alloy for pipes, prepared from the following raw materials in percentage by weight: Si: 0.074%, Fe: 0.315%, Cu: 1.266%, Mn: 0.065%, Mg: 2.005%, Cr: 0.238%, Zn: 4.653%, Ti: 0.022%, the total amount of impurities is less than 0.05%, and the balance is Al.

Embodiment 3

[0024] An alloy for pipes, prepared from the following raw materials in percentage by weight: Si: 0.073%, Fe: 0.3%, Cu: 1.245%, Mn: 0.067%, Mg: 2.006%, Cr: 0.236%, Zn: 4.641%, Ti: 0.026%, the total amount of impurities is less than 0.05%, and the balance is Al.

[0025] According to the purpose of the present invention, there is also provided a process for making pipes using alloys for pipes as a raw material, comprising the following steps:

[0026] (1) Ingredients: weigh each raw material according to the parts by weight of Example 1, Example 2, and Example 3, and mix them;

[0027] (2) Melting: Put the prepared mixture into the melting furnace for melting, melting time: 2-3 hours, melting temperature 700°C-780°C;

[0028] (3) Purification treatment: Purify the above-mentioned smelted alloy;

[0029] (4) Homogenization of ingots: casting hollow ingots according to φ135, and then putting them into a homogenization furnace for homogenization. Homogenization treatment, the m...

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Abstract

The invention provides an alloy for pipe, and a manufacturing process thereof. The components of the alloy comprise, by weight, 0.072%-0.074% of Si, 0.285%-0.315% of Fe, 1.224%-1.266% of Cu, 0.065%-0.067% of Mn, 2.005%-2.007% of Mg, 0.236%-0.243% of Cr, 4.629%-4.653% of Zn, 0.022%-0.027% of Ti. The pipe made of the alloy as raw materials according to this proportion is high in tensile strength andelongation, and the minimum bending angle is 67 DEG; and the application range is wider.

Description

technical field [0001] The invention relates to an alloy for pipes, and also relates to a process for manufacturing pipes using the alloy for pipes as a raw material. Background technique [0002] In the Chinese patent application number 201810823765.3, a 6082 aluminum alloy thick-walled pipe production process is disclosed. The weight percentage of each component of the disclosed aluminum alloy raw material: Si: 1.19-1.24%, Mg: 0.94-0.99%, Cu: 0.2-0.4%, Mn: 0.84-0.89%, Cr: 0.13-0.18%, Ti: 0.11-0.18%, Fe: 0.19-0.24%, Zn: ≤0.05%. The aluminum alloys belonging to the 6 series mainly use silicon and magnesium as the main alloy, and the total composition ratio is relatively low. The elongation of this alloy (greater than 10%) is better. [0003] The 7 series aluminum alloy mainly uses zinc as the main alloy, and the composition ratio reaches 6%. The existing 7075 aluminum alloy pipes in China belong to the 7 series aluminum alloy. Due to the high proportion of other metals, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22F1/053
CPCC22C21/10C22F1/053
Inventor 李康杨建华张雷史平定
Owner 西安康茂恒新能源有限公司