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High-strength and high-toughness aluminum alloy material for pressure casting

An aluminum alloy material and high toughness technology, which is applied in the field of high-strength and high-toughness die-casting aluminum alloy materials, can solve the problems of low elongation, low toughness, and low strength of aluminum alloy die-casting parts, and achieve high tensile strength , the effect of improving the service life

Inactive Publication Date: 2018-03-30
浙江诺达信汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Fe content in ADC12 aluminum alloy is too high (-0.9wt.%), and acicular iron-rich phases are formed, which makes the strength, toughness and elongation of aluminum alloy die-castings not high.
On the other hand, because the Cu content is too high (1.5-3.5wt.%), the resulting copper-rich phase has a high standard electrode potential, making it poor in corrosion resistance in a humid environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: A high-strength and high-toughness aluminum alloy material for die-casting, including the following components in mass percentage: Si: 0.5%, Mg: 0.42%, Mn: 0.36%, Zn: 1.49%, Sr: 0.022%, Fe: 0.48%, Cu: 0.85%, Ti: 0.14%, Cr: 0.029%, Ce: 0.024%, La: 0.01%, the balance is Al and unavoidable impurities, unavoidable impurities Ni, Be, Ca, Li, The content of Pb, V, Na, Bi, Zr, B, Ga, Cd, Co, Ag, Hg, In and other elements shall not exceed 0.1%; the weight fraction of Al shall not be less than 78%, and the unavoidable impurities The content does not exceed 0.03%.

Embodiment 2

[0014] Example 2: A high-strength and high-toughness aluminum alloy material for die-casting, including the following components in mass percentage: Si: 10.9%, Mg: 0.37%, Mn: 0.40%, Zn: 1.40%, Sr: 0.041%, Fe: 0.45%, Cu: 0.76%, Ti: 0.18%, Cr: 0.02%, Ce: 0.022%, La: 0.006%, the balance is Al and unavoidable impurities, unavoidable impurities Ni, Be, Ca, Li, The content of Pb, V, Na, Bi, Zr, B, Ga, Cd, Co, Ag, Hg, In and other elements shall not exceed 0.1%; the weight fraction of Al shall not be less than 78%, and the unavoidable impurities The content does not exceed 0.03%.

Embodiment 3

[0015] Example 3: A high-strength and high-toughness aluminum alloy material for die-casting, including the following components in mass percentage: Si: 9.85%, Mg: 0.33%, Mn: 0.52%, Zn: 1.45%, Sr: 0.018%, Fe: 0.95%, Cu: 0.77%, Ti: 0.12%, Cr: 0.034%, Ce: 0.0500%, La: 0.023%, the balance is Al and unavoidable impurities, unavoidable impurities Ni, Be, Ca, Li, The content of Pb, V, Na, Bi, Zr, B, Ga, Cd, Co, Ag, Hg, In and other elements shall not exceed 0.1%; the weight fraction of Al shall not be less than 78%, and the unavoidable impurities The content does not exceed 0.03%.

[0016] The high-strength and high-toughness aluminum alloy material for die-casting can obtain excellent The die-casting aluminum alloy with excellent mechanical properties and corrosion resistance can prepare aluminum alloy die-casting parts with high strength, high toughness, wear resistance and corrosion resistance, and improve its service life. The high-strength and high-toughness aluminum alloy ma...

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PUM

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Abstract

The invention discloses a high-strength and high-toughness aluminum alloy material for pressure casting. According to the high-strength and high-toughness aluminum alloy material for pressure casting,composition proportions of Si, Ti, Sr, Cu, Fe, Mn, Mg, Zn and Cr are adjusted reasonably, a rare earth element formed by mixing lanthanum and cerium is added, a pressure casting aluminum alloy with the good mechanical property and decay resistance can be obtained, the high-strength, high-toughness, wear-resisting and corrosion-resisting aluminum alloy pressure casting can be prepared, and the service life of the aluminum alloy material is prolonged. By means of the high-strength and high-toughness aluminum alloy material for pressure casting, the higher tensile strength, endurance strength and elongation percentage can be obtained.

Description

technical field [0001] The invention relates to the field of aluminum alloy materials for die-casting, in particular to a high-strength and high-toughness aluminum alloy material for die-casting. Background technique [0002] my country's huge automobile production and sales volume and accounting for about a quarter of the world's automobile market make my country's automobile industry an important pillar industry of the national economy. The continuous increase in its production and sales volume makes its contribution to economic development still occupy an important position. New energy vehicles and automobile lightweight are the two major development trends of "energy saving and emission reduction" in the automobile industry. Aluminum alloy die castings have won a wide range of market demand in the automobile industry due to their clean, energy saving, high efficiency, and environmental protection. According to statistics, In 2015, the total automobile sales in Guangd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02
CPCC22C21/02
Inventor 万强茂黄文涛
Owner 浙江诺达信汽车配件有限公司
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