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cast aluminum alloy

A technology of casting aluminum alloy, as-cast, applied in the field of alloys, to achieve the effect of ensuring assemblability, good corrosion resistance and weldability, and good dimensional stability

Active Publication Date: 2021-07-16
帅翼驰新材料集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Although the patent publication number CN104471090B discloses an aluminum alloy, in addition, the metallographic structure of this aluminum alloy has obvious dendrite structure, thereby limiting the strength and ductility of this aluminum alloy, such as figure 1 shown

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Embodiment Construction

[0032] The following description is disclosed to enable any person skilled in the art to make and use the invention. The preferred embodiments provided in the following description are only examples and modifications obvious to those skilled in the art, and they are not intended to limit the scope of the present invention. The general principles defined in the following description may be applied to other embodiments, alternatives, modifications, equivalent implementations and applications without departing from the spirit and scope of the invention.

[0033] A cast aluminum alloy according to a preferred embodiment of the present invention will be described in detail below, wherein the cast aluminum alloy includes: 8.5-12.5% ​​by weight of silicon, up to 0.15% by weight of iron, 0.25-0.65% by weight Magnesium, up to 0.5 wt. % copper, up to 0.80 wt. % manganese, up to 0.25 wt. % zinc, up to 0.25 wt. % chromium, up to 0.03 wt. % titanium, 0.01-0.06 wt. % boron, up to 0.5 wt% i...

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Abstract

The invention discloses a cast aluminum alloy, wherein the cast aluminum alloy comprises: 8.5-12.5% ​​by weight of silicon, at most 0.15% by weight of iron, 0.25-0.65% by weight of magnesium, at most 0.5% by weight of copper, at most 0.80% by weight % manganese, up to 0.25 wt. % zinc, up to 0.25 wt. % chromium, up to 0.03 wt. % titanium, 0.01‑0.06 wt. % strontium, 0.01‑0.15 wt. % boron, up to 0.5 wt. is aluminum, wherein the cast aluminum alloy has a tensile yield limit Rp0.2 of >135 MPa under as-cast conditions, and at the same time an elongation at break A of >8%, or a tensile strength of >180 MPa after artificial aging (T5) heat treatment Tensile yield limit Rp0.2, and >8% elongation at break A at the same time, or >280MPa tensile yield limit Rp0.2 after solution+artificial aging (T6) heat treatment, and >10% elongation at break at the same time a.

Description

technical field [0001] The invention relates to the field of alloys, in particular to a casting aluminum alloy. Background technique [0002] Casting molding technology is one of the most commonly used molding methods for metal parts, and is widely used in aerospace, automotive, energy, consumer electronics and other industries. Cast aluminum alloy parts are the most common type of castings, which have the advantages of light weight, complex structure, and easy recycling. [0003] With the needs of various industries such as the development of the automobile industry, auto parts made of cast aluminum alloys are required to have high stress and high plasticity. In the aluminum alloy parts produced by the die casting process, especially the parts with complex shapes and uneven wall thickness, the fluidity and solidification characteristics of the aluminum alloy material have a great influence on the performance and price of the product. In particular, auto parts often have t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/04C22F1/043B22D17/00
Inventor 程帅应辉
Owner 帅翼驰新材料集团有限公司
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