Cast aluminum alloy material with high strength and high yield-tensile ratio, and preparation method thereof

A technology for casting aluminum alloys and aluminum alloy materials, which is applied in the field of metal materials, can solve the problems of unsatisfactory structural optimization design, low performance of die castings, and hindering the application of alloys, etc., achieve good self-strengthening characteristics, improve mold life, and reduce heat loss. cracking tendency

Inactive Publication Date: 2018-06-29
潘换珍 +1
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since die castings cannot be strengthened by heat treatment, and there are problems of shrinkage porosity and shrinkage cavities, the performance of die castings is generally not high, and it cannot meet the requirements of further weight reduction through structural optimization design. It is urgent to develop a self-strengthening high performance without heat treatment. Die-casting aluminum alloy materials, which are necessary for the development of automobiles and mobile communications with high lightweight requirements
[0003] At present, there are onl

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
  • Cast aluminum alloy material with high strength and high yield-tensile ratio, and preparation method thereof
  • Cast aluminum alloy material with high strength and high yield-tensile ratio, and preparation method thereof
  • Cast aluminum alloy material with high strength and high yield-tensile ratio, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1:

[0027] According to the ratio of Al-13.1Zn-10.5Si-2.0Cu-0.15Mg-0.2Mn-0.3Fe-0.1Ti-0.06RE as an example, the mass of raw materials required for 15t alloy is calculated and prepared.

[0028] (1) Clean the furnace and prepare raw materials according to the above composition ratio of the alloy.

[0029] (2) Put the aluminum ingot into the furnace and raise the temperature to 750°C. After the aluminum ingot is completely melted, add the prepared metal Si, red copper and electrolytic manganese into the molten aluminum;

[0030] (3) After the metal is completely melted, cool down to 710°C and add the prepared Zn ingot, Mg ingot and Al-Fe master alloy;

[0031] (4) After the metal is completely melted, adjust the temperature of the molten aluminum to 720°C to keep warm, use a refining spoon to press the special refining agent for aluminum alloy into the melt, and stir it up and down fully, or use high-purity inert gas as a carrier to spray the refining agent into ...

Example Embodiment

[0035] Example 2:

[0036] According to the ratio of Al-14.8Zn-9.5Si-1.6Cu-0.18Mg-0.3Mn-0.4Fe-0.15Ti-0.10RE as an example, calculate the mass of elemental and master alloy required for 15t alloy, and prepare the materials.

[0037] (1) Clean the furnace and prepare raw materials according to the above composition ratio of the alloy.

[0038] (2) Put the aluminum ingot into the furnace and heat up to 760°C. After the aluminum ingot is completely melted, add the prepared Al-Si master alloy, Al-Cu master alloy and Al-Mn master alloy into the molten aluminum;

[0039] (3) After the metal is completely melted, cool down to 720°C and add the prepared Zn ingot, Mg ingot and Al-Fe master alloy;

[0040] (4) After the metal is completely melted, adjust the temperature of the molten aluminum to 720°C to keep warm, use a refining spoon to press the special refining agent for aluminum alloy into the melt, and stir it up and down fully, or use high-purity inert gas as a carrier to spray t...

Example Embodiment

[0044] Example 3:

[0045] According to the ratio of Al-16.60Zn-11.0Si-2.9Cu-0.25Mg-0.36Mn-0.6Fe-0.18Ti-0.15RE as an example, the mass of raw materials required for 15t alloy is calculated and prepared.

[0046] (1) Clean the furnace and prepare raw materials according to the above composition ratio of the alloy.

[0047] (2) Put the aluminum ingot into the furnace and raise the temperature to 780°C. After the aluminum ingot is completely melted, add the prepared metal Si, Al-Cu master alloy and electrolytic manganese into the molten aluminum;

[0048] (3) After the metal is completely melted, cool down to 720°C and add the prepared Zn ingot, Mg ingot and Al-Fe master alloy;

[0049] (4) After the metal is completely melted, adjust the temperature of the molten aluminum to 730°C to keep warm, use a refining spoon to press the special refining agent for aluminum alloy into the melt, and stir it up and down fully, or use high-purity inert gas as a carrier to spray the refining ag...

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
Tensile strengthaaaaaaaaaa
Yield strengthaaaaaaaaaa
Hardnessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a cast aluminum alloy material with high strength and a high yield-tensile ratio. The alloy material is prepared from the chemical components in percentage by weight: 13.0 to 19.0 percent of Zn, 8.0 to 13.0 percent of Si, 1.0 to 3.0 percent of Cu, 0.05 to 0.30 percent of Mg, 0.10 to 0.50 percent of Mn, 0.15 to 0.80 percent of Fe, 0.05 to 0.25 percent of Ti, 0.05 to 0.20 percent of RE, and the balance of aluminum and other impurity elements, wherein the content of the other impurity elements is less than or equal to 0.15 percent.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a cast aluminum alloy material with high strength and high yield ratio and a preparation method thereof. Background technique [0002] With the continuous improvement of automobile fuel efficiency and energy saving and environmental protection requirements, it is imperative to reduce the weight of automobiles. The use of lightweight and high-strength materials has become one of the main lightweight methods in the automotive industry, and aluminum alloys have become the first choice for automotive lightweight materials. According to statistics, aluminum alloy castings account for about 77% of the aluminum used in automobiles, of which die castings account for 50% of the aluminum used in automobiles. Typical components include engine block, cylinder head, clutch housing, oil pan, engine bracket, etc. Since die castings cannot be strengthened by heat treatment, and there are problems...

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
IPC IPC(8): C22C21/10C22C1/03
CPCC22C1/026C22C1/03C22C21/10
Inventor 南亦民梁涛
Owner 潘换珍
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap