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Aluminum member

A technology for components and vehicles, applied in coating, casting molding equipment, casting molds, etc., can solve the problems of high manufacturing cost, difference in cooling speed between thick-walled and thin-walled parts, and poor melt fluidity. Effects of improved fluidity and excellent mechanical properties

Active Publication Date: 2015-06-10
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, in the case of a large vehicle component with a large difference in wall thickness, there is a difference in the cooling rate between the thick wall and the thin wall
[0005] Al-Mg series materials usually have poor melt fluidity and are not easy to cast
If such a material with poor melt fluidity is applied to a large member with a large difference in wall thickness, the melt turnability (汤迴り) will be poor or the melt supply will be poor during solidification, and cracks may occur as a result.
[0006] Therefore, Al-Si-based materials are usually selected, but Al-Si-based materials require heat treatment to obtain strength, so the manufacturing cost tends to increase

Method used

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Examples

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Embodiment

[0038] figure 1 In (a), the conventional die casting facility 100 will be described as a comparative example. That is, the molten metal 105 is injected from the sleeve 104 into the cavity 103 formed by the stationary mold 101 and the movable mold 102 . The cavity 103 is expanded so that a large thick-walled member can be obtained. It should be noted, figure 1 (a) is a schematic diagram. Although the cavity 103 is described as having a constant wall thickness, in a real member, the wall thickness difference becomes large. When the melt 105 with poor fluidity is injected, if the thickness difference is large, a difference in cooling rate occurs between the thick part and the thin part, and casting defects are likely to occur.

[0039] like figure 1 As shown in (b), the die casting equipment 10 according to the embodiment of the present invention includes, for example, a die base 11 , a fixed die plate 12 fixed to the die set 11 , a fixed die 13 mounted on the fixed die plate...

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Abstract

An aluminum member produced by casting a molten metal composed of predetermined ingredients is disclosed. The aluminum member is casted by supplying the molten metal to a space between a fixed die, a movable die, and a sand core disposed between the fixed die and the movable die, and then cooling the molten metal moderately.

Description

technical field [0001] The present invention relates to aluminum parts, particularly large aluminum castings. Background technique [0002] For the purpose of weight reduction, etc., aluminum castings are widely used for practical use. In addition, in order to realize the densification of the structure, castings by a die casting method are widely provided (for example, refer to Patent Document 1 (Claim 1)). [0003] Patent Document 1 provides an aluminum alloy for die casting containing Mg, Si, Fe, and Mn within a specific range. This alloy is used as a material for electronic equipment such as computers (Patent Document 1 [0001]). [0004] The technique of Patent Document 1 is effective for small and thin parts such as electronic components. On the other hand, when a vehicle component is large and has a large thickness difference, there is a difference in the cooling rate of the thick part and the thin part. [0005] Al-Mg-based materials generally have poor melt fluidi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08B22D18/00
CPCB22D17/00C22C21/08B22C9/10B22D17/2218B22D17/24B22D21/007B22C3/00
Inventor 朝见明彦畑恒久
Owner HONDA MOTOR CO LTD
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