Aluminum-silicon based aluminum section and preparation technology thereof

An aluminum-silicon-based aluminum profile and a preparation process technology are applied in the field of aluminum profiles and their preparation technology, which can solve problems such as high price and achieve the effects of reducing power consumption, high hardness and good wear resistance.

Inactive Publication Date: 2012-10-24
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For curtain wall structures with high performance requirements

Method used

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  • Aluminum-silicon based aluminum section and preparation technology thereof
  • Aluminum-silicon based aluminum section and preparation technology thereof
  • Aluminum-silicon based aluminum section and preparation technology thereof

Examples

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preparation example Construction

[0036] The preparation process of the aforementioned aluminum-silicon-based aluminum profile includes the following steps:

[0037] The first step: Put the aluminum-silicon alloy into a graphite crucible, heat it to 760°C with a resistance wire to melt, and keep it for 30 minutes to form a melt.

[0038] The second step: add magnesium, silicon and reinforcing elements to the melt prepared in the first step so that the weight percentage of silicon is between 5.0% and 14.0%, and the weight percentage of magnesium is between 0.2% and 0.7%. The weight percentage of the reinforcing element is between 0.1% and 6.55%. After holding for 30 minutes, the temperature is lowered to 730℃ to form a melt.

[0039] The third step: adding hexachloroethane to the melt prepared in the second step for refining, and after standing for 10 minutes, a melt is formed.

[0040] The fourth step: add strontium to the melt prepared in the third step to change the quality. The weight percentage of strontium is bet...

Embodiment 1

[0046] The raw material is ZL102 (ZL102 stands for cast aluminum 102, the silicon content is 10.0%-13.0%, the balance is aluminum). Put ZL102 into a graphite crucible, use resistance wire to heat to 760℃ to melt, keep it for 30 minutes; then add 0.4wt% pure magnesium to ZL102, keep it for 30 minutes, then cool to 730℃, add hexachloroethane for refining After standing for 10 minutes, add strontium Sr element, after holding for 30 minutes, a melt is formed; after holding for 5 minutes, the obtained melt is cast into a cast iron mold preheated to 200 degrees Celsius, and naturally cooled to form an ingot. After homogenization annealing, hot extrusion and hot rolling deformation are carried out at a temperature of 400℃-550℃, and then solution treatment is carried out at a temperature of 500℃-550℃. The solution treatment time is 3-6 hours, and then The aging treatment is carried out at a temperature between 150°C and 250°C, and the aging treatment time is 3-20 hours, so as to obtain...

Embodiment 2

[0055] The preparation process is the same as in Example 1, but the difference: On the one hand, the raw material used in Example 2 is ZL101 (ZL101 stands for cast aluminum 101, with a silicon content of 6.5%-7.5%, a magnesium content of 0.25%-0.45%, and the balance Is aluminum), on the other hand: adding 0.2wt% pure magnesium to ZL101 to compensate for the burning loss of magnesium, instead of 0.4wt% pure magnesium in Example 1.

[0056] The chemical composition of aluminum-silicon-based aluminum profiles was measured by ICP direct-reading spectrometer. The results are as follows: Si: 6.99%, Mg: 0.560%, Fe: 0.124%, Sr: 0.011%, Ti: 0.131%, Pb: <0.0005, Sn: <0.001, Ca: 0.00070, the balance is Al. The quenched extruded samples and the T6 processed samples were processed into plate-like tensile samples by wire cutting, and three parallel samples were taken from each state. According to the national standard "GBT228-2002 Metallic Material Room Temperature Tensile Test Method", on the...

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Abstract

The invention discloses an aluminum-silicon based aluminum section. The aluminum section is composed of, by weight, 5.0-14.0% of silicon, 0.2-0.7% of magnesium, less than 0.03% of boron, less than 0.06% of strontium, 0.1-6.55% of strengthening elements, less than 0.25% impurity elements, and the balance aluminum. The aluminum-silicon based aluminium section has the advantages of high strength, high hardness, good wear resistance, etc. the invention also discloses a preparation technology for the aluminum-silicon based aluminum section, which comprises a first step of adding aluminum-silicon alloy to a graphite crucible and heating the alloy to form melt; a second step of adding the magnesium, the silicon and the strengthening elements; a third step of adding hexachloroethane for refinement; a forth step of adding the strontium for deterioration, casting to a cast iron die to form an ingot casting; and a fifth step of hot extruding, hot rolling for deformation, solid solution treating and aging treating in sequence after annealing the ingot casting, thereby obtaining the aluminum-silicon based aluminum section. The preparation technology is simple.

Description

Technical field [0001] The invention relates to an aluminum profile and a preparation process thereof, in particular to an aluminum-silicon-based aluminum profile and a preparation process thereof. Background technique [0002] Aluminum profiles are divided into architectural aluminum profiles (aluminum profiles for architectural doors and windows, curtain walls, interior and exterior decoration and architectural structures, accounting for 75% of aluminum profile consumption) and industrial aluminum profiles (all aluminum profiles except architectural aluminum profiles). my country is a major producer of aluminum profiles, and architectural aluminum profiles account for most of the entire aluminum profile market, but they often provide low-end products, which are mainly used for building doors and windows, indoor and outdoor decoration, and curtain wall structures that are not demanding. For curtain wall structures with higher performance requirements, the aluminum profiles have ...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02C22C1/06C22F1/043
Inventor 廖恒成杨健吴玉娜
Owner SOUTHEAST UNIV
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