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properties of 3003 aluminum alloy foil

Date: 2019-08-21 17:13

For the 3003 aluminum alloy foil billet:

For the 3003 aluminum alloy foil billet produced by the casting and rolling method, the cooling solidification and deformation of the metal during the casting and rolling are all the casting mills with a roll diameter of 650 mm - 700 mm in the casting and rolling zone, and the maximum casting and rolling zone length The length of the 50mm Yuan casting zone is only about a dozen millimeters. The solidification crystallization of the metal is completed in the time of about 1 s. The rate of cooling and solidification is about two orders of magnitude higher than that of the semi-continuous casting, and the various impurities of the 3003 aluminum alloy foil and the solid solubility of the alloying elements in the aluminum are all It varies with temperature. For example, according to the equilibrium phase diagram, the solubility of iron in aluminum at eutectic temperature (655 ° C) is about 0.052%, and the solubility at room temperature is reduced to 0.002%. The faster the cooling rate of many original crystals deviates. The more serious the equilibrium state.


3003 aluminum foil

 the intragranular segregation of the 3003 aluminum alloy foil:

Therefore, the intragranular segregation of the 3003 aluminum alloy foil produced by the casting method and the degree of supersaturation of the solid solution are more serious than those of the semi-continuous casting. If the annealing temperature is high (to reach the homogenization temperature) during the intermediate annealing, the metal can be promoted. The supersaturated element is fully analyzed, and the decrease in solid solubility in the phase increases the self-diffusion coefficient of the atom to facilitate the annealing. 3003 Aluminum alloy foil The nucleation and growth of the new crystal nucleus reduces the recrystallization temperature of the material. When the temperature at the annealing does not reach the homogenization effect and only the plastic recovery of the metal is satisfied, the supersaturated solid solution of the metal is not fully analyzed.

3003 aluminum alloy foil produced by the third scheme:

Therefore, the 3003 aluminum alloy foil produced by the third scheme is more likely to be crystallized under the same conditions during the annealing of the finished product, and the number of internal nucleation of the material is increased due to the internal segregation and the analysis of the solid solution during the homogenization treatment. The grain structure of the material is finer, so the elongation of the finished product is higher. The strength of the rolled surface of the ordinary intermediate annealed aluminum foil blank is higher because the temperature is insufficient during the intermediate annealing, and the internal structure of the material is In-crystal segregation, and the incomplete precipitation of solid solution, has a solid solution strengthening effect on 3003 aluminum alloy foil, but if the temperature continues to rise during the annealing of the finished product, the strength and elongation may be caused by the continued growth of the crystal grains. The rate of decline has fallen sharply.
 
 
Henan Mingtai Aluminum Industry Co., Ltd., as a listed aluminum sheet and foil manufacturer, has continuously developed and improved its products for 20 years. The quality of 3003 aluminum alloy foil is one of the few in China, and it has made significant contributions to the aluminum foil market. High praise.
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