Nano-aluminum profile and preparation method thereof
A nano-aluminum, profile technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as the inability to meet material life and spiritual life, and improve microstructure and comprehensive process performance. , the effect of increasing the extrusion speed and improving the mechanical properties
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[0065] The preparation method of the nano-Cu is as follows: respectively measuring 500 ml of 8% copper sulfate solution and 600 ml of 9% potassium borohydride solution; at a temperature of 33° C. and under high-speed stirring at 8000 KPS, the copper sulfate solution is sprayed with a sprayer into the container. In a three-necked flask with potassium borohydride solution; at the same time, use an acidity meter to monitor the pH value of the reaction solution, and add sodium hydroxide at any time to keep the pH value of the reaction solution at 14.5; After 8 minutes, the reaction was completed.
[0066] In order to solve the above-mentioned technical problems, the present invention also provides a preparation method of the nano-aluminum profile as described in any of the foregoing, comprising the following steps:
[0067] Put the pure aluminum ingot matrix into a graphite crucible, heat it to 752~763℃ in a resistance furnace, and remove the surface scum after it is completely me...
Embodiment 1
[0092] Embodiment 1: The main alloying components of the nano-aluminum profile of the present invention are designed as follows (the following are mass percentages):
[0093] Si: 0.60%~0.70%;
[0094] Mg: 0.85%~0.95%;
[0095] Mg / Si: 1.2~1.4;
[0096] Mg+Si: 1.2~2.0%;
[0097] Cu: 0.52~0.68%
[0098] Sm: 0.35~0.50%;
[0099] Fe ≤ 0.33%;
[0100] Other impurities≤0.8%;
[0101] balance of Al.
Embodiment 2
[0102] Embodiment 2: In the embodiment of the present invention, in the process of preparing the nano-aluminum profile alloy, the added Cu is nano-Cu. The preparation method of nano-Cu in the embodiment of the present invention is:
[0103] Preparation of nano-copper powder colloid
[0104] Main reagents: sodium pyrophosphate (solid, chemical reagent), potassium borohydride (solid, analytical reagent), polyvinylpyrrolidone (PVP-K30, Mw=40000), potassium sodium tartrate (solid, chemical reagent), EDTA Disodium acetate (EDTA-2Na, solid, analytical reagent), copper sulfate (solid, analytical reagent), sodium hydroxide (solid, chemical reagent), sodium dodecyl sulfate (SDS, solid, chemical reagent), water as Double distilled water.
[0105] Main instruments: ZHJ-2 timing electric mixer, self-made sprayer, ZK-82A vacuum drying oven.
[0106] Preparation of copper sulfate solution: sequentially add quantitative water, copper sulfate, EDTA-2Na, potassium sodium tartrate and PVP in...
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