Supercharge Your Innovation With Domain-Expert AI Agents!

Homogenization treatment method for large-diameter free-cutting aluminum alloy cast rod

A homogenization treatment, aluminum alloy technology, applied in the field of homogenization treatment of large-diameter easy-cutting aluminum alloy cast rods, can solve the problems of difficulty in meeting production needs, poor extrusion performance, difficulty in completely eliminating element segregation and dissolution of coarse second phase Compounds and other issues to achieve the effects of reducing energy consumption and production costs, improving the uniformity of tissue composition, and shortening the heating and holding time

Active Publication Date: 2021-03-26
广东领胜新材料科技有限公司 +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing homogenization treatment method for large-diameter free-cutting aluminum alloy cast rods with a diameter of more than 300 mm usually adopts the method of holding a long time at a certain temperature for homogenization treatment. Although this homogenization treatment method is simple to operate, it is difficult to completely Eliminate element segregation and dissolve coarse second-phase compounds, the deformation resistance of cast rods is still high, and the extrusion performance is still poor, which is difficult to meet production needs
In addition, the existing homogenization treatment method for large-diameter free-cutting aluminum alloy cast rods still has the problem of long heating and holding time, resulting in huge energy consumption and high production costs.
Therefore, the homogenization treatment method of the existing large-diameter free-cutting aluminum alloy cast rods still needs to be improved and developed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Homogenization treatment method for large-diameter free-cutting aluminum alloy cast rod
  • Homogenization treatment method for large-diameter free-cutting aluminum alloy cast rod
  • Homogenization treatment method for large-diameter free-cutting aluminum alloy cast rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A cast rod of free-cutting aluminum alloy with a diameter of 300 mm, consisting of the following components by mass percentage: Mg 6.23%, Mo 2.81%, Ca 1.41%, In 1.68%, Fe 1.26%, the balance being Al and unavoidable Impurity elements, the individual content of impurity elements is ≤0.01%, and the total amount of impurity elements is ≤0.05%. The homogenization treatment method includes the following steps in turn:

[0043] S1, put the aluminum alloy cast rod into the homogenization treatment furnace;

[0044] S2. Heat the aluminum alloy cast rod to 520°C at a rate of 10°C / min, and then keep it warm for 15 minutes;

[0045] S3. Cool the aluminum alloy cast rod to 455°C at a rate of 5°C / min, and then continue to keep warm for 35 minutes;

[0046] S4. The aluminum alloy cast rod was removed from the homogenization treatment furnace, and the aluminum alloy cast rod was cooled to room temperature at a cooling rate of 15° C. / min to obtain the free-cutting aluminum alloy cast r...

Embodiment 2

[0048] A cast rod of free-cutting aluminum alloy with a diameter of 500 mm, consisting of the following components by mass percentage: Mg 6.31%, Mo 2.76%, Ca 1.44%, In 1.65%, Fe 1.27%, the balance being Al and unavoidable impurity elements, the individual content of impurity elements is ≤0.01%, and the total amount of impurity elements is ≤0.05%. The homogenization treatment method includes the following steps in turn:

[0049] S1, put the aluminum alloy cast rod into the homogenization treatment furnace;

[0050] S2. Heat the aluminum alloy cast rod to 510°C at a rate of 12°C / min, and then keep it warm for 20 minutes;

[0051] S3. Cool the aluminum alloy cast rod to 460°C at a rate of 4°C / min, and then continue to keep warm for 30 minutes;

[0052] S4. The aluminum alloy cast rod was removed from the homogenization treatment furnace, and the aluminum alloy cast rod was cooled to room temperature at a cooling rate of 10° C. / min to obtain the free-cutting aluminum alloy cast r...

Embodiment 3

[0054] A cast rod of free-cutting aluminum alloy with a diameter of 400 mm, consisting of the following components by mass percentage: Mg 6.15%, Mo 2.89%, Ca 1.38%, In 1.72%, Fe 1.25%, the balance being Al and unavoidable impurity elements, the individual content of impurity elements is ≤0.01%, and the total amount of impurity elements is ≤0.05%. The homogenization treatment method includes the following steps in turn:

[0055] S1, put the aluminum alloy cast rod into the homogenization treatment furnace;

[0056] S2. Heat the aluminum alloy cast rod to 530°C at a rate of 8°C / min, and then keep it warm for 10 min;

[0057] S3. Cool the aluminum alloy cast rod to 450°C at a rate of 6°C / min, and then continue to keep warm for 40 minutes;

[0058] S4. Move the aluminum alloy cast rod out of the homogenization treatment furnace, and cool the aluminum alloy cast rod to room temperature at a cooling rate of 12° C. / min to obtain the free-cutting aluminum alloy cast rod with a diamet...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a homogenization treatment method for a large-diameter free-cutting aluminum alloy cast rod, and belongs to the technical field of aluminum alloy homogenization treatment. The method sequentially comprises the following steps: S1, putting the cast rod into a homogenization treatment furnace; S2, heating the cast rod to 510-530 DEG C at the heating rate of 8-12 DEG C / min, andthen preserving heat for 10 to 20 minutes; S3, cooling the cast rod to 450-460 DEG C at the rate of 4-6 DEG C / min, and then continually preserving heat for 30-40 minutes; and S4, moving the cast rodout of the homogenization treatment furnace, and cooling the cast rod to room temperature at the cooling rate not lower than 10 DEG C / min. According to the method, the process and parameters of homogenization treatment are optimally designed, so that a thick second-phase compound in the cast rod is fully molten, the component segregation of the cast rod is eliminated, the deformation resistance ofthe cast rod is reduced, and the structural component uniformity and extrusion machining performance of the cast rod are improved. In addition, the homogenization treatment time of the cast rod is shortened, energy consumption is reduced, the production cost is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy homogenization treatment, and in particular relates to a method for homogenization treatment of large-diameter easy-cut aluminum alloy cast rods. Background technique [0002] Free-cutting aluminum alloys usually refer to aluminum alloys whose chips are easy to break, do not stick to the knife, and do not wrap around the knife. The production efficiency of cutting processing can obtain precision aluminum alloy parts with smoother surface and higher dimensional accuracy, so it is widely used in automobiles, electronics, electrical appliances, mechanical equipment and other fields. [0003] For large-diameter free-cutting aluminum alloy cast rods with a diameter of more than 300 mm, due to the high degree of alloying of elements and the wide range of solidification and crystallization temperatures, the element segregation is severe, the size of the second phase compound is large, and the defo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/047C22C21/06
CPCC22C21/06C22F1/047
Inventor 张大鹏石常亮牛艳萍孙大翔陈文龙
Owner 广东领胜新材料科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com