Novel regeneration cast aluminum alloy for structural application

一种铝合金、再生铝的技术，应用在测试金属、材料检验品等方向，能够解决低凝固速率、高收缩倾向等问题

Inactive Publication Date: 2016-09-07
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, because of the high tendency of these secondary aluminum alloys to shrink, and particularly due to the very low solidification rate during casting, certain investment, sand, or gravity castings may be achieved with commercially available secondary aluminum alloys such as 319 or 354 Challenges in high quality

Method used

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  • Novel regeneration cast aluminum alloy for structural application
  • Novel regeneration cast aluminum alloy for structural application
  • Novel regeneration cast aluminum alloy for structural application

Examples

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Embodiment Construction

[0055] First refer to figure 1 , Shows a simplified view of a four-cylinder automobile internal combustion engine cylinder block 100. The block 100 includes, among other parts, a crankcase 110, a crankshaft bearing 120, a camshaft bearing 130 (in the case of an engine with overhead valves and push rods), a water-cooled jacket 140, and a flywheel housing 150 And the part of the cylinder bore 160. These bores 160 may include an alloyed surface layer (not shown), which is integrally formed with the base of each bore 160, or formed as a separate insert or sleeve sized to fit securely therein. The cylinder block 100 is preferably cast from the secondary aluminum alloy discussed herein, wherein the alloy is preferably an Al-Si casting alloy (such as alloys 319, 354, 356, 360, 380, and 390). In a preferred form, the mechanical properties (such as strengthening, ductility, fatigue resistance, etc.) of the cylinder block 100 made of recycled aluminum alloy raw materials are improved by...

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Abstract

The invention discloses a novel regeneration cast aluminum alloy for structural application. The aluminum alloy that can be cast into structural components wherein at least some of the raw materials used to produce the alloy are sourced from secondary production sources. In addition to aluminum as the primary constituent, such an alloy includes 5 to 14% silicon, 0 to 1.5% copper, 0.2 to 0.55% magnesium, 0.2 to 1.2% iron, 0.1 to 0.6% manganese, 0 to 0.5% nickel, 0 to 0.8% zinc, 0 to 0.2% of other trace elements selected from the group consisting essentially of titanium, zirconium, vanadium, molybdenum and cobalt. In a preferred form, most of the aluminum is from a secondary production source. Methods of analyzing a secondary production aluminum alloy to determine its constituent makeup is also disclosed, as is a method of adjusting the constituent makeup of such an alloy in situations where the alloy is out of tolerance when measured against its primary source counterpart.

Description

technical field [0001] The present invention relates to having improved casting quality and mechanical properties to facilitate the casting of said alloys into machinable articles such as engine blocks, cylinder heads and other products for use in automobiles and utilizing the controllable mechanical properties in such alloys Heat-treatable secondary aluminum alloys for transmission components for industrial applications. Background technique [0002] Cast aluminum alloys most commonly used in structural applications in the automotive and other industries include, but are not limited to, Al-Si series alloys such as the 200 and 300 series aluminum alloys, which contain silicon (Si) primarily for improved castability and mechanical Processability. At least a few commonly used aluminum alloys (i.e. 319, 354 and 380) which are especially useful for forming engine cylinder blocks and heads suffer from inherent shrinkage problems, mainly due to the presence of trace contaminants ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02
CPCC22C21/02C22C21/12C22C21/16C22C21/18C22F1/043C22F1/057B22D21/007B22D25/02G01N33/20
Inventor Q.王J.R.特劳布M.J.沃克A.K.萨赫德夫
Owner GM GLOBAL TECH OPERATIONS LLC
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