Formula of rods and bars of aluminum alloy and processing technology thereof

A processing technology and technology of aluminum alloy, which is applied in the field of aluminum alloy bar formulation and processing technology, and can solve problems such as the inability to meet the performance of the instrument.

Inactive Publication Date: 2011-10-05
ZOUPING CHANGSHAN PROFILES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bars processed by the normal production process and the parts of the geophysical detector after processing cannot meet the requirements of the instrument performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A formula of aluminum alloy bar: its technical scheme is as follows:

[0018] Alloy percentage ratio: Cu-3.9% Mg-1.5%

[0019] Mn-0.4%

[0020] Main impurity control: Fe-0.30% Si-0.15% Zn-0.15% Ti-0.01%

[0021] Cr-0.10%

[0022] The balance of 0.04% of other impurities is aluminum.

[0023] The processing technique of aluminum alloy rod among the present invention is:

[0024] Melting and casting: According to the above-mentioned proportioning, the magnetic vortex is used for component proportioning, so as to achieve the best uniformity of chemical components and ensure electrical conductivity. The refining temperature is controlled at 730 ° C, and the melt temperature is controlled at 730 ° C during the whole melting and casting process.

[0025] Extrusion and finishing: ingot heating temperature 420°C, 880-ton extrusion machine single-hole production, semi-finished product extrusion size deviation 25.6 mm; a certain amount of cold deformation is given to the bar ...

Embodiment 2

[0027] A formula of aluminum alloy bar: its technical scheme is as follows:

[0028] Alloy percentage ratio: Cu-4.1% Mg-1.6%

[0029] Mn-0.5%

[0030] Main impurity control: Fe-0.38% Si-0.25% Zn-0.13% Ti-0.08%

[0031] Cr-0.05%

[0032] Other impurities are 0.03%, and the balance is aluminum.

[0033] The processing technique of aluminum alloy rod among the present invention is:

[0034] Melting and casting: mix ingredients according to the above ratio, and use magnetic vortex to carry out composition ratio matching, so as to achieve the best uniformity of chemical composition and ensure electrical conductivity. The refining temperature is controlled between 735°C and the melt temperature in the whole casting process is controlled at 735°C .

[0035] Extrusion and finishing: ingot heating temperature 435°C, 880-ton extrusion machine single-hole production, semi-finished product extrusion size deviation 25.7 mm; a certain amount of cold deformation is given to the bar afte...

Embodiment 3

[0037] A formula of aluminum alloy bar: its technical scheme is as follows:

[0038] Alloy percentage ratio: Cu-4.3% Mg-1.8%

[0039] Mn-0.6%

[0040] Main impurity control: Fe-0.42% Si-0.40% Zn-0.10% Ti-0.1%

[0041] Cr≤0.03%

[0042] Other impurities 0.02%, the balance is aluminum.

[0043] The processing technique of aluminum alloy rod among the present invention is:

[0044] Melting and casting: According to the above-mentioned proportioning, the magnetic vortex is used for component proportioning, so as to achieve the best uniformity of chemical composition and ensure electrical conductivity. The refining temperature is controlled at 740°C, and the melt temperature is controlled at 740°C during the whole melting and casting process.

[0045] Extrusion and finishing: Ingot heating temperature is 450℃, 880-ton extrusion machine single-hole production, semi-finished product extrusion size deviation is 25.8mm; after quenching, a certain amount of cold deformation is given...

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PUM

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Abstract

The invention belongs to the field of metal materials, and in particular relates to a formula of rods and bars of aluminum alloy and a processing technology thereof. According to the formula of the rods and the bars of aluminum alloy and the processing technology thereof, provided by the invention, the resistivity of the rods and the bars of aluminum alloy is kept stable by controlling the composition formula and the processing technology, and the requirement of a geophysical instrument is satisfied. In the invention, the resistivity of the rods and the bars of aluminum alloy is stabilized at0.057 to 0.0572 ohm.mm<2> / m by means of proportioning alloy components, controlling a production technology and the like; the utilization requirement of the geophysical instrument is met; and imported foreign materials are replaced.

Description

technical field [0001] The invention belongs to the field of metal materials, in particular to an aluminum alloy rod formula and a processing technology thereof. Background technique [0002] The production method of aluminum and aluminum alloy rods mainly adopts hot extrusion method. That is to say, the remelted aluminum ingot is melted, the alloy composition is distributed, and the extruded aluminum ingot is produced by semi-continuous casting. Then the aluminum ingot is heated for hot extrusion. Due to the limitations of the process characteristics of casting and hot extrusion, aluminum and aluminum alloy bars produced by hot extrusion methods are common: ①The external dimensions are unstable, and the size deviation of the extruded head and tail is large; ②The extruded head, The degree of tail deformation is inconsistent, resulting in uneven mechanical properties of the material; ③The internal structure of the bar is unstable, and the physical properties of the material...

Claims

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Application Information

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IPC IPC(8): C22C21/18C22B21/06C22F1/057
Inventor 王虎臣张贤忠张秩亮张祥山
Owner ZOUPING CHANGSHAN PROFILES
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