阅读说明：本技术 一种高效电子标签用铝箔及其制备方法 (Aluminum foil for efficient electronic tag and preparation method thereof ) 是由 赵旭东 丁思蒙 王毓玮 周林林 方小雪 李高林 于 2021-08-10 设计创作，主要内容包括：本发明公开了一种高效电子标签用铝箔及其制备方法,其组成成分及质量百分比为：Si0.1-0.15,Fe0.4-0.5％,Cu0.03～0.05％,Mn≤0.05％,Zn≤0.05％,Ti≤0.03％,余量为Al。使用该工艺生产的合金产品,产品板型良好,与薄膜复合效果好；产品加工性能优越,印刷不良率低,保证了生产质量。其中在蚀刻阶段,未改良前,产品蚀刻辊子的转速要20-30r/min,线速度为3m/min才能蚀刻干净；改良后,产品蚀刻过程辊子转速可提高为50r/min,线速度提高为7m/min,大大提高了生产效率。(The invention discloses an aluminum foil for a high-efficiency electronic tag and a preparation method thereof, wherein the aluminum foil comprises the following components in percentage by mass: 0.1 to 0.15 percent of Si, 0.4 to 0.5 percent of Fe0.03 to 0.05 percent of Cu0.03 percent, less than or equal to 0.05 percent of Mn, less than or equal to 0.05 percent of Zn, less than or equal to 0.03 percent of Ti, and the balance of Al. The alloy product produced by the process has good plate shape and good compounding effect with the film; the product has excellent processing performance and low printing reject ratio, and ensures the production quality. Wherein, in the etching stage, before improvement, the product etching roller can be etched clean at a rotating speed of 20-30r/min and a linear speed of 3 m/min; after improvement, the roller rotating speed can be increased to 50r/min in the product etching process, the linear speed is increased to 7m/min, and the production efficiency is greatly improved.)

1. An aluminum foil for a high-efficiency electronic tag is characterized by comprising the following components in percentage by mass: 0.1 to 0.15 percent of Si, 0.4 to 0.5 percent of Fe0.03 to 0.05 percent of Cu0.03 percent, less than or equal to 0.05 percent of Mn, less than or equal to 0.05 percent of Zn, less than or equal to 0.03 percent of Ti, and the balance of Al.

2. The preparation method of the aluminum foil for the efficient electronic tag is characterized by comprising the following steps of:

(1) smelting, namely preparing alloy raw materials by taking the mixture ratio of Si 0.13%, Fe0.45% and Cu0.035% in percentage by weight and the balance of aluminum as basic components;

(2) melting the raw materials, wherein the melting temperature is within the range of 720-750 ℃, performing melt refining treatment, pouring the melt into a standing furnace at 740-760 ℃, standing and preserving heat, wherein the temperature of the standing furnace is 720-750 ℃; then cast-rolling to obtain 6.0-7.0mm cast-rolled coils;

(3) roughly rolling the cast-rolled mother coil according to the thickness of 7.0 mm-3.8 mm and rolling the cast-rolled mother coil for 3.8mm, carrying out homogenization annealing, heating to 560 ℃, preserving heat for 23h, cooling and discharging;

(4) after intermediate annealing, rolling the coil by 3.8-2.0-1.1-0.65 mm pass to 0.65mm thickness for intermediate annealing, heating to 350 ℃ and preserving heat for 13h, then cooling to 280 ℃ and preserving heat for 3h, cooling and discharging;

(5) after trimming, the material roll is rolled to be 0.08 +/-0.004 mm in the finished product pass with the thickness of 0.65 mm-0.35 mm-trimming-0.17 mm-0.08 +/-0.004 mm, and then is slit to be the width of the finished product;

(6) annealing the finished product of the coil with the diameter of 0.08 +/-0.004 mm in the finished product pass, heating to 220 ℃ for 15 hours, preserving heat for 10 hours, continuously heating for 30 hours, heating to 380 ℃ for preserving heat for 40 hours, then cooling to 220 ℃ for 2 hours, preserving heat for 20 hours, and cooling and discharging.

Technical Field

The invention relates to an aluminum foil for a high-efficiency electronic tag and a preparation method thereof.

Background

The hot stamping material has the hot stamping effect similar to that of pure silver foil, so that it is also called fake silver foil. Because the aluminum has soft texture, good ductility and silvery white luster, if the rolled sheet is pasted on offset paper by sodium silicate and other substances to prepare an aluminum foil sheet, the aluminum foil sheet can be printed.

The invention relates to an aluminum foil for efficient electronic tags, which has the advantages of poor compounding effect of the original product and a film, low printing efficiency, low production stability and longer etching time of the electronic tags in the actual production process, thereby greatly influencing the production efficiency.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an aluminum foil for a high-efficiency electronic tag and a preparation method thereof.

An aluminum foil for a high-efficiency electronic tag comprises the following components in percentage by mass: 0.1 to 0.15 percent of Si, 0.4 to 0.5 percent of Fe, 0.03 to 0.05 percent of Cu, less than or equal to 0.05 percent of Mn, less than or equal to 0.05 percent of Zn, less than or equal to 0.03 percent of Ti, and the balance of Al.

A preparation method of an aluminum foil for a high-efficiency electronic tag comprises the following steps:

(1) smelting, namely preparing alloy raw materials by taking the mixture ratio of 0.13 percent of Si, 0.45 percent of Fe, 0.035 percent of Cu and the balance of aluminum as basic components;

(2) melting the raw materials, wherein the melting temperature is within the range of 720-750 ℃, performing melt refining treatment, pouring the melt into a standing furnace at 740-760 ℃, standing and preserving heat, wherein the temperature of the standing furnace is 720-750 ℃; then cast-rolling to obtain 6.0-7.0mm cast-rolled coils;

(3) roughly rolling the cast-rolled mother coil according to the thickness of 7.0 mm-3.8 mm and rolling the cast-rolled mother coil for 3.8mm, carrying out homogenization annealing, heating to 560 ℃, preserving heat for 23h, cooling and discharging;

(4) after intermediate annealing, rolling the coil by 3.8-2.0-1.1-0.65 mm pass to 0.65mm thickness for intermediate annealing, heating to 350 ℃ and preserving heat for 13h, then cooling to 280 ℃ and preserving heat for 3h, cooling and discharging;

(5) after trimming, the material roll is rolled to be 0.08 +/-0.004 mm in the finished product pass with the thickness of 0.65 mm-0.35 mm-trimming-0.17 mm-0.08 +/-0.004 mm, and then is slit to be the width of the finished product;

(6) annealing the finished product of the coil with the diameter of 0.08 +/-0.004 mm in the finished product pass, heating to 220 ℃ for 15 hours, preserving heat for 10 hours, continuously heating for 30 hours, heating to 380 ℃ for preserving heat for 40 hours, then cooling to 220 ℃ for 2 hours, preserving heat for 20 hours, and cooling and discharging.

Has the advantages that:

the alloy product produced by the process has good plate shape and good compounding effect with the film; the product has excellent processing performance and low printing reject ratio, and ensures the production quality. Wherein, in the etching stage, before improvement, the product etching roller can be etched clean at a rotating speed of 20-30r/min and a linear speed of 3 m/min; after improvement, the roller rotating speed can be increased to 50r/min in the product etching process, the linear speed is increased to 7m/min, and the production efficiency is greatly improved.

Detailed Description

For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.

An aluminum foil for a high-efficiency electronic tag comprises the following components in percentage by mass: 0.1 to 0.15 percent of Si, 0.4 to 0.5 percent of Fe, 0.03 to 0.05 percent of Cu, less than or equal to 0.05 percent of Mn, less than or equal to 0.05 percent of Zn, less than or equal to 0.03 percent of Ti, and the balance of Al.

A preparation method of an aluminum foil for a high-efficiency electronic tag comprises the following steps:

(1) smelting, namely preparing alloy raw materials by taking the mixture ratio of 0.13 percent of Si, 0.45 percent of Fe, 0.035 percent of Cu and the balance of aluminum as basic components;

(2) melting the raw materials, wherein the melting temperature is within the range of 720-750 ℃, performing melt refining treatment, pouring the melt into a standing furnace at 740-760 ℃, standing and preserving heat, wherein the temperature of the standing furnace is 720-750 ℃; then cast-rolling to obtain 6.0-7.0mm cast-rolled coils;

(3) roughly rolling the cast-rolled mother coil according to the thickness of 7.0 mm-3.8 mm and rolling the cast-rolled mother coil for 3.8mm, carrying out homogenization annealing, heating to 560 ℃, preserving heat for 23h, cooling and discharging;

(4) after intermediate annealing, rolling the coil by 3.8-2.0-1.1-0.65 mm pass to 0.65mm thickness for intermediate annealing, heating to 350 ℃ and preserving heat for 13h, then cooling to 280 ℃ and preserving heat for 3h, cooling and discharging;

(5) after trimming, the material roll is rolled to be 0.08 +/-0.004 mm in the finished product pass with the thickness of 0.65 mm-0.35 mm-trimming-0.17 mm-0.08 +/-0.004 mm, and then is slit to be the width of the finished product;

(6) annealing the finished product of the coil with the diameter of 0.08 +/-0.004 mm in the finished product pass, heating to 220 ℃ for 15 hours, preserving heat for 10 hours, continuously heating for 30 hours, heating to 380 ℃ for preserving heat for 40 hours, then cooling to 220 ℃ for 2 hours, preserving heat for 20 hours, and cooling and discharging.

The alloy product produced by the process has good plate shape and good compounding effect with the film; the product has excellent processing performance and low printing reject ratio, and ensures the production quality. Wherein, in the etching stage, before improvement, the product etching roller can be etched clean at a rotating speed of 20-30r/min and a linear speed of 3 m/min; after improvement, the roller rotating speed can be increased to 50r/min in the product etching process, the linear speed is increased to 7m/min, and the production efficiency is greatly improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.