A physical polishing method for aluminum alloy mirror plate

Abstract

The invention discloses a physical polishing method for an aluminum alloy mirror plate. The processing method comprises the following steps: A. plate preparation: refining an aluminum alloy melt at 710-780°C, then introducing the melt into a static furnace for static rest, passing the aluminum alloy melt through a casting and rolling mill with a front box temperature of 660-750°C and a speed of 80-1200 mm / min, and casting and rolling out a blank with a thickness of 1-20 mm and a width of less than 2600 mm; B. mirror forming: passing the blank through a quadruple cold rolling mill, installing a mirror roller below the blank and a flat roller above the blank during rolling, starting a brush roller and injecting lubricating oil, and rolling the blank into the aluminum alloy mirror plate. The present invention improves the reflectivity of aluminum alloy mirror plate materials by matching different processing parameters and auxiliary materials through three steps: rough polishing, medium polishing, and fine polishing. The reflectivity of the aluminum alloy mirror plate materials is maintained above 80-85%. By casting and rolling blanks with a thickness of 1-20 mm and a width of up to 2600 mm, a full range of alloys can be polished, covering thicknesses from 1 mm to 20 mm and widths of up to 2600 mm.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy mirror plate processing, in particular to a physical polishing method for aluminum alloy mirror plate. Background Art

[0002] Mirror aluminum sheet refers to aluminum sheet that has been processed through various methods such as rolling and polishing to achieve a mirrored surface. Mirror aluminum sheet is generally manufactured overseas using the rolling method, resulting in coils and sheets. Mirror aluminum sheet has a wide range of applications, including lighting reflectors and decorations, solar thermal reflective materials, interior and exterior architectural decoration, home appliance panels, electronic product housings, furniture and kitchens, automotive interior and exterior decoration, signage, logos, luggage, jewelry boxes, and other fields. Aluminum alloy mirror sheet requires polishing during processing, but current processing methods are limited to 1-series aluminum alloys with a thickness of less than 1mm and a width of less than 1220mm, and the reflectivity is only 55-65%. Therefore, we propose a physical polishing method for aluminum alloy mirror sheet. Summary of the Invention

[0003] The purpose of the present invention is to provide a physical polishing method for aluminum alloy mirror plate materials, which has the advantages of realizing the polishing of a full range of alloys, fully covering thicknesses from 1 mm to 20 mm and widths within 2600 mm, and a reflectivity of up to 80-85%. It solves the problem that the current processing method for aluminum alloy mirror plate materials can only process 1 series aluminum alloys with a thickness of less than 1 mm and a width of less than 1220 mm, and the reflectivity is only 55-65%.

[0004] To achieve the above object, the present invention provides the following technical solution: a physical polishing method for an aluminum alloy mirror plate, the processing method comprising the following steps:

[0005] A. Sheet preparation: The aluminum alloy melt is refined at 710-780℃, then introduced into a static furnace for static rest. The aluminum alloy melt is passed through a casting and rolling mill with a front box temperature of 660-750℃ and a speed of 80-1200mm / min to cast and roll out blanks with a thickness of 1-20mm and a width of less than 2600mm.

[0006] B. Mirror forming: The blank is passed through a quadruple cold rolling mill. During rolling, the mirror roller is installed under the blank and the flat roller is installed above the blank. The brush roller is started and lubricating oil is injected to roll the aluminum alloy mirror plate.

[0007] C. Plate preparation is completed: the aluminum alloy mirror plate is bent and straightened, quenched, and then sent to the aluminum alloy mirror plate stacking area;

[0008] D. Plate selection: Take the aluminum alloy mirror plate from the plate stacking place and transport it to the processing location;

[0009] E. Plate cleaning: Place the taken-out aluminum alloy mirror plate into the cleaning machine for cleaning, and then place the aluminum alloy mirror plate into the drying device for drying;

[0010] F. Rough polishing: Place the aluminum alloy mirror plate on the polishing machine, set the speed of the polishing machine to 600-800r / min, the pressure of the polishing machine to 45-55Pa, and set the polishing wax to 5-8 seconds / time. The main components of the polishing wax are 45% aluminum oxide, 35% water, 15% grease mixture, and 5% emulsifier. Combine with the linen wheel to work for 5-8 minutes;

[0011] G. Medium polishing: Set the speed of the polishing machine to 950-1200r / min, the pressure of the polishing machine to 40-50Pa, and set the polishing wax to 4-6 seconds / time. The main components of the polishing wax are 45% aluminum oxide, 35% water, 15% grease mixture, and 5% emulsifier. Combine with the white cloth wheel to operate for 4-6 minutes;

[0012] H. Fine polishing: Set the speed of the polishing machine to 450-550r / min, the pressure of the polishing machine to 20-30Pa, and operate with a non-woven wheel for 4 minutes;

[0013] I. Cleaning the plate: Place the polished aluminum alloy mirror plate on the cleaning machine for cleaning. After cleaning the residual scraps on the aluminum alloy mirror plate, place the aluminum alloy mirror plate in the dryer for drying.

[0014] J. Inspection: Place the dried aluminum alloy mirror plate into the inspection machine for inspection to test the reflectivity of the aluminum alloy mirror plate. The reflectivity of the aluminum alloy mirror plate is qualified if it reaches 80-85% or above, and unqualified if it is below 80%;

[0015] K. Completion: The aluminum alloy mirror plates that have passed the inspection will be placed in the warehouse, and the unqualified aluminum alloy mirror plates will be reworked.

[0016] Preferably, a dust hood is provided on the top of the polishing machine, a dust box is provided on the bottom of the polishing machine, a filter is provided in the inner cavity of the dust box, a fan is fixedly connected to the right side of the dust box, the air intake of the fan is fixedly connected to the right side of the inner cavity of the dust box through a pipe, and the left side of the dust box is fixedly connected to the dust hood through a pipe.

[0017] Preferably, the bottom of the polishing machine is fixedly connected to a water tank, the upper part of the left side of the water tank is movably connected to a handheld nozzle through a clamp, the lower part of the left side of the water tank is fixedly connected to a pump, the water suction port of the pump is fixedly connected to the bottom of the left side of the water tank cavity through a pipe, and the water outlet of the pump is fixedly connected to the handheld nozzle through a hose.

[0018] Preferably, the outer surface of the aluminum alloy mirror plate is coated with an anti-rust paint, which is composed of cyanamide resin, barium sulfate, organic bentonite, active silica, glycolic acid, diacetone alcohol, talc, deionized water, xylene, phytate and a film-forming resin, and the components in parts by weight are: 1-3 parts of cyanamide resin; 2-9 parts of barium sulfate; 2-5 parts of organic bentonite; 1-5 parts of active silica; 2-8 parts of glycolic acid; 1-4 parts of diacetone alcohol; 3-6 parts of talc; 10-16 parts of deionized water; 4-6 parts of xylene; 2-7 parts of phytate; and 5-10 parts of a film-forming resin.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention can improve the reflectivity of aluminum alloy mirror plate through the three steps of rough polishing, medium polishing and fine polishing, matching different processing parameters and auxiliary materials, so that the reflectivity of aluminum alloy mirror plate is maintained above 80-85%. By casting and rolling out blanks with a thickness of 1-20mm and a width of less than 2600mm, a full range of alloys can be polished, with a thickness of 1mm-20mm and a width of less than 2600mm. In addition, a dust collection mechanism can be formed by a dust collection hood, a dust collection box, a filter screen and a fan to absorb the dust generated during the polishing process, thereby avoiding During the polishing process, dust flies everywhere and affects the surrounding environment. A water tank, a handheld nozzle and a pump can be used to form a water spray mechanism, which makes it convenient for people to clean the polishing machine after polishing is completed. Anti-rust paint can play an anti-rust role and prevent the aluminum alloy mirror plate from being corroded by substances in the external environment during long-term use. It can increase the service life of the aluminum alloy mirror plate and solve the problem that the current processing method of aluminum alloy mirror plate can only be used for 1 series aluminum alloy with a thickness of less than 1mm and a width of less than 1220mm, and the reflectivity is only 55-65%. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0024] A physical polishing method for an aluminum alloy mirror plate material, the processing method comprising the following steps:

[0025] A. Sheet preparation: The aluminum alloy melt is refined at 710-780℃, then introduced into a static furnace for static rest. The aluminum alloy melt is passed through a casting and rolling mill with a front box temperature of 660-750℃ and a speed of 80-1200mm / min to cast and roll out blanks with a thickness of 1-20mm and a width of less than 2600mm.

[0026] B. Mirror forming: The blank is passed through a quadruple cold rolling mill. During rolling, the mirror roller is installed under the blank and the flat roller is installed above the blank. The brush roller is started and lubricating oil is injected to roll the aluminum alloy mirror plate.

[0027] C. Plate preparation is completed: the aluminum alloy mirror plate is bent and straightened, quenched, and then sent to the aluminum alloy mirror plate stacking area;

[0028] D. Plate selection: Take the aluminum alloy mirror plate from the plate stacking place and transport it to the processing location;

[0029] E. Plate cleaning: Place the taken-out aluminum alloy mirror plate into the cleaning machine for cleaning, and then place the aluminum alloy mirror plate into the drying device for drying;

[0030] F. Rough polishing: Place the aluminum alloy mirror plate on the polishing machine, set the speed of the polishing machine to 600-800r / min, the pressure of the polishing machine to 45-55Pa, and set the polishing wax to 5-8 seconds / time (the main components of the polishing wax are 45% aluminum oxide, 35% water, 15% grease mixture, and 5% emulsifier), and work with the linen wheel for 5-8 minutes;

[0031] G. Medium polishing: Set the speed of the polishing machine to 950-1200r / min, the pressure of the polishing machine to 40-50Pa, and set the polishing wax to 4-6 seconds / time (the main components of the polishing wax are 45% aluminum oxide, 35% water, 15% grease mixture, and 5% emulsifier), and work with a white cloth wheel for 4-6 minutes;

[0032] H. Fine polishing: Set the speed of the polishing machine to 450-550r / min, the pressure of the polishing machine to 20-30Pa, and operate with a non-woven wheel for 4 minutes;

[0033] I. Cleaning the plate: Place the polished aluminum alloy mirror plate on the cleaning machine for cleaning. After cleaning the residual scraps on the aluminum alloy mirror plate, place the aluminum alloy mirror plate in the dryer for drying.

[0034] J. Inspection: Place the dried aluminum alloy mirror plate into the inspection machine for inspection to test the reflectivity of the aluminum alloy mirror plate. The reflectivity of the aluminum alloy mirror plate is qualified if it reaches 80-85% or above, and unqualified if it is below 80%;

[0035] K. Completion: The aluminum alloy mirror plates that have passed the inspection will be placed in the warehouse, and the unqualified aluminum alloy mirror plates will be reworked.

[0036] A dust hood is provided on the top of the polishing machine, a dust box is provided at the bottom of the polishing machine, a filter is provided in the inner cavity of the dust box, a fan is fixedly connected to the right side of the dust box, the air intake of the fan is fixedly connected to the right side of the inner cavity of the dust box through a pipe, the left side of the dust box is fixedly connected to the dust hood through a pipe, a water tank is fixedly connected to the bottom of the left side of the water tank, a handheld nozzle is movably connected to the upper part of the left side of the water tank through a clamp, a pump is fixedly connected to the lower part of the left side of the water tank, the water intake of the pump is fixedly connected to the bottom of the left side of the inner cavity of the water tank through a pipe, and the water outlet of the pump is fixedly connected to the handheld nozzle through a hose. The outer surface of the aluminum alloy mirror plate is coated with anti-rust paint, which consists of cyanamide resin, barium sulfate, organic bentonite, active silica, glycolic acid, diacetone alcohol, talc, deionized water, xylene, phytate and a film-forming resin. The components in parts by weight are as follows: 1-3 parts of cyanamide resin; 2-9 parts of barium sulfate; 2-5 parts of organic bentonite; 1-5 parts of active silica; 2-8 parts of glycolic acid; 1-4 parts of diacetone alcohol; 3-6 parts of talc; 10-16 parts of deionized water; 4-6 parts of xylene; 2-7 parts of phytate; and 5-10 parts of the film-forming resin.

[0037] When in use, through the three steps of rough polishing, medium polishing and fine polishing, matching different processing parameters and auxiliary materials, the reflectivity of the aluminum alloy mirror plate can be improved, so that the reflectivity of the aluminum alloy mirror plate is maintained at above 80-85%. By using the blank with a thickness of 1-20mm and a width of less than 2600mm through casting and rolling, the whole series of alloys can be polished, with a thickness of 1mm-20mm and a width of less than 2600mm. In addition, the dust collection cover, dust collection box, filter and fan can form a dust collection mechanism to absorb the dust generated during the polishing process to avoid During the polishing process, dust flies everywhere and affects the surrounding environment. A water tank, a handheld nozzle and a pump can be used to form a water spray mechanism, which makes it convenient for people to clean the polishing machine after polishing. Anti-rust paint can play an anti-rust role and prevent the aluminum alloy mirror plate from being corroded by substances in the external environment during long-term use. It can increase the service life of the aluminum alloy mirror plate and solve the problem that the current processing method of aluminum alloy mirror plate can only be used to make 1 series aluminum alloy with a thickness of less than 1mm and a width of less than 1220mm, and the reflectivity is only 55-65%.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A physical polishing method for aluminum alloy mirror plate material, characterized by: The processing method includes the following steps: Sheet preparation: The aluminum alloy melt is refined at 710-780℃, then introduced into a static furnace for static placement. The aluminum alloy melt is then passed through a casting and rolling mill with a front box temperature of 660-750℃ and a speed of 80-1200mm / min to cast and roll out blanks with a thickness of 1-20mm and a width of up to 2600mm. Mirror forming: The blank is passed through a quadruple cold rolling mill. During rolling, the mirror roller is installed under the blank and the flat roller is installed on the top of the blank. The brush roller is started and lubricating oil is injected to roll the aluminum alloy mirror plate. Plate preparation is completed: the aluminum alloy mirror plate is bent, straightened, quenched, and then sent to the aluminum alloy mirror plate stacking area; Plate selection: take the aluminum alloy mirror plate from the plate stacking place and transport it to the processing location; Plate cleaning: Place the taken-out aluminum alloy mirror plate into the cleaning machine for cleaning, and then place the aluminum alloy mirror plate into the drying device for drying; Rough polishing: Place the aluminum alloy mirror plate on the polishing machine, set the speed of the polishing machine to 600-800r / min, the pressure of the polishing machine to 45-55Pa, and set the polishing wax to 5-8 seconds / time. The main components of the polishing wax are 45% aluminum oxide, 35% water, 15% grease mixture, and 5% emulsifier. Combine with the linen wheel to operate for 5-8 minutes; Medium polishing: Set the speed of the polishing machine to 950-1200r / min, the pressure of the polishing machine to 40-50Pa, and set the polishing wax to 4-6 seconds / time. The main components of the polishing wax are 45% aluminum oxide, 35% water, 15% grease mixture, and 5% emulsifier. Combine with the white cloth wheel to operate for 4-6 minutes; Fine polishing: Set the speed of the polishing machine to 450-550r / min, the pressure of the polishing machine to 20-30Pa, and operate with a non-woven wheel for 4 minutes; Cleaning the plate: Place the polished aluminum alloy mirror plate on the cleaning machine for cleaning. After cleaning the residual scraps on the aluminum alloy mirror plate, place the aluminum alloy mirror plate in the dryer for drying. Inspection: Place the dried aluminum alloy mirror plate into the inspection machine for inspection to test the reflectivity of the aluminum alloy mirror plate. If the reflectivity reaches 80-85% or above, it is qualified; if the reflectivity is below 80%, it is unqualified. Completion: The aluminum alloy mirror plates that have passed the inspection will be placed in the warehouse, and the unqualified aluminum alloy mirror plates will be reworked.

2. The physical polishing method for aluminum alloy mirror plate material according to claim 1, characterized in that: A dust hood is provided on the top of the polishing machine, a dust box is provided on the bottom of the polishing machine, a filter is provided in the inner cavity of the dust box, a fan is fixedly connected to the right side of the dust box, the air intake of the fan is fixedly connected to the right side of the inner cavity of the dust box through a pipe, and the left side of the dust box is fixedly connected to the dust hood through a pipe.

3. The physical polishing method for aluminum alloy mirror plate material according to claim 1, characterized in that: The bottom of the polishing machine is fixedly connected to a water tank, the upper part of the left side of the water tank is movably connected to a handheld nozzle through a clamp, the lower part of the left side of the water tank is fixedly connected to a pump, the water suction port of the pump is fixedly connected to the bottom of the left side of the water tank cavity through a pipe, and the water outlet of the pump is fixedly connected to the handheld nozzle through a hose.

4. The physical polishing method for aluminum alloy mirror plate material according to claim 1, characterized in that: The outer surface of the aluminum alloy mirror plate is coated with an anti-rust paint, which is composed of cyanamide resin, barium sulfate, organic bentonite, active silica, glycolic acid, diacetone alcohol, talc, deionized water, xylene, phytate, and a film-forming resin. The components in parts by weight are: 1-3 parts of cyanamide resin; 2-9 parts of barium sulfate; 2-5 parts of organic bentonite; 1-5 parts of active silica; 2-8 parts of glycolic acid; 1-4 parts of diacetone alcohol; 3-6 parts of talc; 10-16 parts of deionized water; 4-6 parts of xylene; 2-7 parts of phytate; and 5-10 parts of the film-forming resin.