阅读说明：本技术 一种玻璃隔条铝带及其制备方法 (Glass division bar aluminum strip and preparation method thereof ) 是由 任素贞 徐成志 黄绍浪 刘前换 张逸 郭琨 吕彦阳 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种玻璃隔条铝带及其制备方法,包括以下质量百分比的组分：硅0.1~0.15%,铁0.32~0.5%,铜0.03~0.05%,锰1.3~1.35%,余量为铝和所有不可去除杂质,其中单个不可去除杂质的含量为0~0.05%；包括以下步骤：备料、熔炼、铸轧,冷轧,精轧,拉矫和表面处理,热处理；本发明提供的制备方法简单,所制备的铝带抗拉强度、延伸率和表面明度值明显提高。(The invention discloses a glass division bar aluminum strip and a preparation method thereof, wherein the glass division bar aluminum strip comprises the following components in percentage by mass: 0.1-0.15% of silicon, 0.32-0.5% of iron, 0.03-0.05% of copper, 1.3-1.35% of manganese, and the balance of aluminum and all non-removable impurities, wherein the content of a single non-removable impurity is 0-0.05%; the method comprises the following steps: preparing materials, smelting, casting and rolling, cold rolling, finish rolling, straightening and withdrawal, surface treatment and heat treatment; the preparation method provided by the invention is simple, and the tensile strength, the elongation and the surface brightness value of the prepared aluminum strip are obviously improved.)

1. The glass division bar aluminum strip is characterized by comprising the following components in percentage by mass: 0.1-0.15% of silicon, 0.32-0.5% of iron, 0.03-0.05% of copper, 1.3-1.35% of manganese, and the balance of aluminum and all non-removable impurities, wherein the content of a single non-removable impurity is 0-0.05%.

2. The glass-spacer aluminum strip of claim 1 wherein the amount of iron is 2.5 times the sum of the amounts of silicon and copper.

3. A preparation method of an aluminum strip of a glass division bar is characterized by comprising the following steps:

preparing the components according to the mass percent, and obtaining a cast-rolled plate with the thickness of 12-13mm after smelting and cast-rolling processes;

transferring the cast-rolled plate to a cold rolling workshop for cold rolling, and obtaining a cold-rolled coil with the thickness of 1.0-1.1mm after cold rolling for a plurality of times;

the cold rolled coil is transferred to a finishing mill after being cooled, and the finish rolled coil with the thickness of 0.3-0.35mm is obtained after a plurality of passes of finish rolling;

transferring the finish rolled coil to a withdrawal and straightening production line, and performing withdrawal and straightening and surface treatment to obtain an aluminum coil;

and transferring the aluminum coil into an annealing furnace for annealing treatment to obtain the glass division bar aluminum strip.

4. The method for producing an aluminum strip for a glass division bar as claimed in claim 3, wherein the cold rolling is carried out in a total of 5 passes with a pass reduction of 37 to 41%.

5. A method for producing an aluminium strip for a glass spacer according to claim 3, characterised in that the cold-rolling cogging roll roughness is ra0.6-0.7 μm; the rolling oil temperature is 25-28 deg.C during cold rolling, and the spraying amount of 5 rolling oil nozzles is 50-60%.

6. The method for producing an aluminum strip for a glass division bar according to claim 3, wherein the cold rolled coil is cooled for 24 hours and then subjected to finish rolling, and the finish rolling is performed in 3 passes in total, and the pass reduction ratio is 30 to 35%.

7. The method for producing an aluminum strip for a glass division bar as claimed in claim 3, wherein the finish rolling roller has a roughness of Ra0.1 to 0.12 μm.

8. The method of claim 3, wherein the withdrawal-straightening dyne value is not less than 38dyn in the withdrawal-straightening line.

9. The method for producing an aluminum strip for a glass division bar according to claim 3, wherein the degreasing solution has a pH of 12.5 to 13, a cleaning water temperature of 45 to 50 ℃ and a cleaning speed of 60 to 70m/min in the surface treatment.

10. The method of claim 3, wherein the step of annealing the aluminum coil comprises: heating the furnace gas at 450 ℃ for 5-8h, then cooling to 380 ℃ at the speed of 20-30 ℃/h, preserving heat for 4h, then cooling to 340 ℃ at the speed of 10-20 ℃/h, preserving heat for 15-20h, and discharging and air cooling.

Technical Field

The invention belongs to the technical field of metal material processing, and particularly relates to a glass division bar aluminum strip and a preparation method thereof.

Background

The existing high-end glass division bar aluminum strip is processed by hot rolling 3003 alloy, and has the defects of high energy consumption, long working procedure, high cost and the like. The tensile strength of the 3003 alloy glass division bar aluminum strip produced by the existing casting and rolling method is 180-200MPa, and the elongation is 8-10%. At present, customers require that the tensile strength of the glass division bar aluminum strip is more than or equal to 220MPa, the elongation is more than or equal to 15 percent, and the brightness value is more than or equal to 20, but the existing preparation technology cannot meet the requirements.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides the glass division bar aluminum strip and the preparation method thereof, the preparation method is simple, and the tensile strength, the elongation and the surface brightness value of the prepared aluminum strip are obviously improved.

The invention provides the following technical scheme:

the glass division bar aluminum strip comprises the following components in percentage by mass: 0.1-0.15% of silicon, 0.32-0.5% of iron, 0.03-0.05% of copper, 1.3-1.35% of manganese, and the balance of aluminum and all non-removable impurities, wherein the content of a single non-removable impurity is 0-0.05%.

Preferably, the content of iron is 2.5 times the sum of the contents of silicon and copper.

A preparation method of an aluminum strip of a glass division bar comprises the following steps:

preparing the components according to the mass percent, and obtaining a cast-rolled plate with the thickness of 12-13mm after smelting and cast-rolling processes;

transferring the cast-rolled plate to a cold rolling workshop for cold rolling, and obtaining a cold-rolled coil with the thickness of 1.0-1.1mm after cold rolling for a plurality of times;

the cold rolled coil is transferred to a finishing mill after being cooled, and the finish rolled coil with the thickness of 0.3-0.35mm is obtained after a plurality of passes of finish rolling;

transferring the finish rolled coil to a withdrawal and straightening production line, and performing withdrawal and straightening and surface treatment to obtain an aluminum coil;

and transferring the aluminum coil into an annealing furnace for annealing treatment to obtain the glass division bar aluminum strip.

Preferably, in the cold rolling, the rolling is performed in 5 passes in total, and the pass reduction ratio is 37 to 41%.

Preferably, the roughness of the cold rolling cogging roll is Ra0.6-0.7 μm; the rolling oil temperature is 25-28 deg.C during cold rolling, and the spraying amount of the rolling oil nozzle is 50-60%.

Preferably, the cold-rolled coil is cooled for 24 hours and then finish-rolled, and during finish rolling, 3 passes of rolling are performed in total, and the pass processing rate is 30-35%.

Preferably, the roughness of the finish rolling roll is Ra0.1 to 0.12. mu.m.

Preferably, in the withdrawal line, the withdrawal dyne value is from 38 to 45 dyn.

Preferably, the pH of the degreasing solution is 12.5-13, the temperature of the cleaning water is 45-50 ℃, and the cleaning speed is 60-70m/min when the surface treatment is carried out.

Preferably, the step of annealing the aluminum coil includes: heating the furnace gas at 450 ℃ for 5-8h, then cooling to 380 ℃ at the speed of 20-30 ℃/h, preserving heat for 4h, then cooling to 340 ℃ at the speed of 10-20 ℃/h, preserving heat for 15-20h, and discharging and air cooling.

Compared with the prior art, the invention has the beneficial effects that:

(1) the aluminum strip for the glass division bar prepared by the invention has the tensile strength of 225-240MPa, the elongation of more than or equal to 15 percent and the brightness value of 22-32;

(2) according to the preparation method of the glass division bar aluminum strip, provided by the invention, the tensile strength of a finished product is increased by 45-60MPa, the elongation is improved by 50-87%, and the surface brightness value is obviously increased by controlling the mass content of each component, increasing the thickness of a cast-rolled blank, controlling the thickness of a semi-finished product in cold rolling and finish rolling processes and controlling the roughness of an oil temperature and a working roll.

Detailed Description

The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.