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High-thermal conductivity thermal treatment die-casting aluminum alloy and preparation method thereof

A technology of casting aluminum alloy and high thermal conductivity, which is applied in the field of aluminum alloy, can solve the problems that the thermal conductivity of aluminum alloy is greatly affected, and the influence of thermal conductivity is not completely the same, so as to achieve the effect of weakening the degree of lattice distortion and improving thermal conductivity

Inactive Publication Date: 2019-02-15
苏州慧驰轻合金精密成型科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, some alloying elements have a greater impact on the thermal conductivity of aluminum alloys, and some alloying elements have different effects on the thermal conductivity of aluminum alloys.

Method used

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  • High-thermal conductivity thermal treatment die-casting aluminum alloy and preparation method thereof
  • High-thermal conductivity thermal treatment die-casting aluminum alloy and preparation method thereof
  • High-thermal conductivity thermal treatment die-casting aluminum alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1-13

[0035] A thin-walled die-casting aluminum alloy with high strength and high thermal conductivity, comprising the components in mass percentages listed in Table 1 below, and the balance being aluminum and unavoidable impurities.

[0036]Si: 8.50wt%-11.0wt%; RE: 0.01wt%-0.5wt%; B: 0.05wt%-0.20wt%; Fe: 0.20wt%-1.00wt%; Cu<0.5wt%; Mg<0.5wt% %

[0037] Table 1 is the content table of each element in the aluminum alloy of embodiment 1-13

[0038]

Si

RE

B

Fe

Cu

Mg

1

8.5

0.4

0.1

0.8

0.2

0.35

2

9.0

0.2

0.15

0.75

0.15

0.45

3

9.5

0.35

0.2

0.78

0.25

0.36

4

10.0

0.2

0.15

0.72

0.31

0.27

5

10.5

0.16

0.12

0.73

0.34

0.25

6

11

0.28

0.08

0.77

0.43

0.16

7

8.5

0.18

0.09

0.69

0.43

0.18

8

9.0

0.28

0.14

0.64

0.32

0.39

9

9.5

0.42

...

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Abstract

The invention relates to a high-thermal conductivity thermal treatment die-casting aluminum alloy and a preparation method thereof. The alloy is prepared from the following components: 8.50 wt% to 11.0 wt% of Si, 0.01 wt% to 0.5 wt% of Re, 0.05 wt% to 0.20 wt% of B, 0.20 wt% to 1.00 wt% of Fe, less than 0.5 wt% of Cu, less than 0.5 wt% of Mg, less than 0.05 wt% of other impurities under control and the balance Al. Compared with the prior art, the die-casting aluminum alloy has the beneficial effect that Re and B elements are doped into the aluminum alloy, and heat-conducting property of the die-casting aluminum alloy is greatly improved by utilizing properties of the Re and B elements.

Description

technical field [0001] The invention relates to an aluminum alloy, in particular to a die-casting aluminum alloy with high thermal conductivity and heat treatment and a preparation method thereof. Background technique [0002] Aluminum-silicon casting alloys are often used as die-casting aluminum alloy materials. The main problem of this type of alloy is that its thermal conductivity is low, which often fails to meet the design requirements. Taking the commonly used ADC12 alloy as an example, its thermal conductivity of aluminum is about 96W / (m K), while the thermal conductivity of aluminum profiles is 200W / (m K). Therefore, it is an urgent problem to study the factors that affect the thermal conductivity of die-casting aluminum alloy and try to improve its thermal conductivity. [0003] The chemical elements in aluminum alloys are one of the main factors affecting the thermal conductivity of aluminum alloys. The influence of chemical elements on the thermal conductivity o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/04C22C1/03C22F1/043
CPCC22C1/026C22C1/03C22C21/04C22F1/043
Inventor 周银鹏汪时宜陈曦罗云斌赵华
Owner 苏州慧驰轻合金精密成型科技有限公司
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