Unlock instant, AI-driven research and patent intelligence for your innovation.

A high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy and method for producing the same

A casting aluminum alloy, high-strength and high-toughness technology, applied in the field of aluminum alloy materials, can solve problems such as unrealistic, thin wall thickness, deformation, etc., and achieve the effect of fast cooling speed, high strength and plasticity of die casting

Active Publication Date: 2022-07-15
SHENZHEN XINSHEN NEW MATERIAL TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of such parts, due to their thin wall thickness, they are easily deformed during heat treatment, resulting in scrap, so it is not realistic to improve their strength by heat treatment

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
  • A high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy and method for producing the same
  • A high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy and method for producing the same
  • A high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy, the composition of the die-casting aluminum alloy is as follows: Si 12.5%, Fe0.6%, Cu 0.3%, Mn 0.10%, Mg 0.8%, Zn 0.3%, Pb 0.05%, Sr 0.06%, B 0.008%, the balance is Al and a small amount of inevitable impurities.

[0044] The above-mentioned manufacturing method of a high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy, the specific manufacturing method is as follows:

[0045] (1) Put pure aluminum ingots into the smelting device, heat to 220°C, and preheat for more than 2 hours to eliminate moisture and other impurities in the raw materials; then heat to 755°C and keep the temperature for 20 minutes to fully melt the pure aluminum ingots;

[0046] (2) adding Si, Mn, Zn, Cu, and Fe to the molten aluminum obtained in step (1) and melting them successively, then reducing the temperature to 710° C., adding Mg, Pb, Sr and B to the molten aluminum and...

Embodiment 2

[0056] A high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy, the composition of the die-casting aluminum alloy is as follows: Si 8.5%, Fe0.9%, Cu 0.05%, Mn 0.2%, Mg 0.7%, Zn 0.2%, Pb 0.03%, Sr 0.01%, B 0.008%, the balance is Al and a small amount of unavoidable impurities.

[0057] A method for manufacturing a high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy, the specific manufacturing method is as follows:

[0058] (1) Put pure aluminum ingots into the smelting device, heat to 200°C, and preheat for more than 2 hours to eliminate moisture and other impurities in the raw materials; then heat to 750°C and keep the temperature for 20 minutes to fully melt the pure aluminum ingots;

[0059] (2) adding Si, Mn, Zn, Cu, Fe to the molten aluminum obtained in step (1) and melting them successively, then reducing the temperature to 700° C., adding Mg, Pb, Sr and B to the molten aluminum and melting to obtain m...

Embodiment 3

[0064] A high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy, the composition of the die-casting aluminum alloy is as follows: Si 6.0%, Fe0.5%, Cu 0.1%, Mn 0.08%, Mg 1.0%, Zn 0.15%, Pb 0.01%, Sr 0.05%, B 0.006%, the balance is Al and a small amount of inevitable impurities.

[0065] The above-mentioned manufacturing method of a high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy, the specific manufacturing method is as follows:

[0066] (1) Put pure aluminum ingots into the smelting device, heat to 230°C, and preheat for more than 2 hours to eliminate moisture and other impurities in the raw materials; then heat to 760°C and keep the temperature for 20 minutes to fully melt the pure aluminum ingots;

[0067] (2) adding Si, Mn, Zn, Cu, and Fe to the molten aluminum obtained in step (1) and melting them successively, then reducing the temperature to 720° C., adding Mg, Pb, Sr and B to the molten aluminum and...

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
yield strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy and a manufacturing method thereof. The composition of the die-casting aluminum alloy is as follows: Si 6-13%, Fe≤1.0%, Cu≤0.5%, Mn≤0.2%, Mg ≤1.0%, Zn≤0.3%, Pb≤0.05%, Sr≤0.08%, B≤0.01%, the balance is Al and a small amount of inevitable impurities. Through the design of the composition of the alloy, the multi-component cooperates with each other without adding expensive rare earth elements, avoids the adverse effects caused by excessive content of each component, and greatly improves the mechanical properties and thermal conductivity of the alloy. rate, maintain a certain plasticity and excellent casting performance, tensile strength ≥ 384MPa, yield strength ≥ 273MPa, elongation ≥ 6.2%, thermal conductivity ≥ 176w / m k, to meet the performance requirements of high load-bearing, thin-walled die-casting structural parts , especially suitable for thin parts of 5G products. In the manufacturing method of the present invention, the strength can be increased by 30-40 MPa after only a very short time of hot shaping process. The present invention optimizes the process path and saves the alloy manufacturing cost.

Description

technical field [0001] The invention relates to the field of aluminum alloy materials, in particular to a high-strength, high-toughness, and high-thermal-conductivity die-casting aluminum alloy and a manufacturing method thereof. Background technique [0002] Aluminum and its alloys are an important industrial raw material with huge applications in aerospace, machinery, electronics, shipbuilding and chemical industries. Die casting has the advantages of high manufacturing efficiency, near-net shape and good surface quality. [0003] Die-casting aluminum alloys are widely used in communications, electronics and transportation, and are mainly used to produce thin-walled shell parts. In the mobile communication industry, parts such as communication chassis have both heat dissipation functions and complex shapes. At present, eutectic or near-eutectic aluminum-silicon alloys are the most important die-casting aluminum alloys, and traditional aluminum alloys such as ADC12 are us...

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 Patents(China)
IPC IPC(8): C22C21/02C22C1/03C22F1/043B22D17/00B21C37/02
CPCC22C21/02C22C1/026C22C1/03C22C32/0078C22F1/043B22D17/00B21C37/02
Inventor 张逸智张煜琰
Owner SHENZHEN XINSHEN NEW MATERIAL TECH CO LTD