CN111842594B - Process for manufacturing mirror LOGO on metal sand blasting surface - Google Patents
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- CN111842594B CN111842594B CN202010773440.6A CN202010773440A CN111842594B CN 111842594 B CN111842594 B CN 111842594B CN 202010773440 A CN202010773440 A CN 202010773440A CN 111842594 B CN111842594 B CN 111842594B
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 47
- 239000002184 metal Substances 0.000 title claims abstract description 47
- 238000005488 sandblasting Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000047 product Substances 0.000 claims abstract description 41
- 238000005498 polishing Methods 0.000 claims abstract description 34
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 29
- 239000004576 sand Substances 0.000 claims abstract description 19
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003792 electrolyte Substances 0.000 claims abstract description 9
- 239000010407 anodic oxide Substances 0.000 claims abstract description 6
- 239000012467 final product Substances 0.000 claims abstract description 3
- 238000007493 shaping process Methods 0.000 claims abstract description 3
- 238000005507 spraying Methods 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000002048 anodisation reaction Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- 230000003746 surface roughness Effects 0.000 description 6
- 238000010330 laser marking Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007743 anodising Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000383 hazardous chemical Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
- B23K26/3568—Modifying rugosity
- B23K26/3576—Diminishing rugosity, e.g. grinding; Polishing; Smoothing
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/12—Anodising more than once, e.g. in different baths
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a process for manufacturing a mirror LOGO on a metal sand blasting surface, which comprises the following steps: stamping the flat metal product into a set shape by stamping equipment; spraying the metal sand on the surface of the product by utilizing compressed air power so as to modify and change the surface of the product; polishing and shaping the surface of a metal product by using laser equipment through the swinging of a scanning galvanometer to form a mirror surface LOGO; performing first-time anodic oxidation, putting the metal product into an electrolyte for electrolysis, wherein the thickness of an anodic oxide film formed by electrolysis is 3-4 micrometers, and washing with water after the electrolysis is finished; and (3) putting the obtained product into an electrolyte for electrolysis, wherein the thickness of an anodic oxide film formed by electrolysis is 8-12 micrometers, and washing with water after the electrolysis is finished to obtain a final product. This application can be directly at the sandblast surface finish of metal product and form the high bright mirror surface effect, has reduced the preparation flow, has practiced thrift personnel and cost, has reduced the place, does not have the pollution to the environment.
Description
Technical Field
The invention relates to the technical field of metal processing, in particular to a process for manufacturing a mirror LOGO on a metal sand blasting surface.
Background
The LOGO traditional manufacturing process of the metal product shell has multiple processing modes, and printing and inlaying adhesion are mainly adopted.
Different treatment processes are divided into a plurality of working procedures, the processing working procedures are complex, most importantly, the ink printing process pollutes the environment, is difficult to meet the current strict environmental evaluation standard, and does harm to the environment and the safety of workers.
Inlay many that sticky technology made be metal mirror surface sign, adopt to inlay sticky preparation and accomplish, through liquid medicine etching and punching press, final glue is pasted and is accomplished the LOGO preparation, nevertheless makes LOGO like this and exists following not enoughly:
1. the edges of the characters are not uniform and have saw-tooth shapes;
2. the liquid medicine etching is toxic and corrosive, and easily causes environmental pollution;
3. LOGO is easy to fall off from the metal surface under high temperature and high humidity environment;
4. the manufacturing process is multiple, the reject ratio is higher, and the production period is longer.
Therefore, a processing technique is needed to solve the above technical problems, and safely and reliably provide a metal mirror mark on a metal surface.
Disclosure of Invention
The invention aims to provide a process for manufacturing a mirror LOGO on a metal sand blasting surface, which can directly polish the sand blasting surface of a metal product to form a high-brightness mirror effect, reduce the manufacturing process, save personnel and cost, reduce the field and have no pollution to the environment.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a process for manufacturing a mirror LOGO on a metal sand blasting surface, which comprises the following steps:
step S1: stamping, namely stamping the flat metal product into a set shape by stamping equipment;
step S2: sand blasting, namely spraying metal sand on the surface of a product by utilizing compressed air power to modify the surface of the product;
and step S3: laser polishing, namely polishing and shaping the surface of a metal product by using laser equipment through the swinging of a scanning galvanometer to form a mirror surface LOGO;
and step S4: performing first anodic oxidation, namely putting the product obtained in the step S3 into an electrolyte for electrolysis, wherein the thickness of an anodic oxide film formed by electrolysis is 3 to 4 micrometers, and washing with water after the electrolysis is finished;
step S5: and (5) performing secondary anodic oxidation, namely putting the product obtained in the step (S4) into an electrolyte for electrolysis, wherein the thickness of an anodic oxide film formed by electrolysis is 8-12 micrometers, and washing with water after the electrolysis is finished to obtain a final product.
For the above technical solution, the applicant has further optimization measures.
Optionally, the metal sand used in the step S2 is iron sand, the sand blasting pressure is 1.6 to 1.8kg, the conveying speed is 10 to 11Hz, and the surface roughness is 1.1 to 18.
Optionally, in the step S2, two times of sand blasting are adopted, fine sand is adopted in the first time of sand blasting, and the surface roughness is 1.1 to 8; the secondary sand blasting adopts coarse sand, and the surface roughness is 10 to 18.
Optionally, in the step S3, polishing the sand blasting surface of the product by using laser equipment is divided into two times of treatment, a high-power laser equipment is firstly used for rough polishing treatment for removing shading on the sand blasting surface, then a low-speed low-power laser equipment is used for finish polishing treatment on the sand blasting surface, and finally the mirror surface LOGO with the glossiness of 500-1000 GU is obtained.
Optionally, the laser energy of the high-power laser equipment for rough polishing treatment is 95%, and the metal sand grains on the sand blasting surface are roughly polished for 2 times to reach a molten state; the laser energy of the low-power laser equipment for fine polishing is 80%, and the fine polishing is carried out for 2 times, so that the surface of the sand blasting generates a mirror LOGO.
Optionally, the laser device used in step S3 includes a laser, an optical path system, a scanning mirror oscillator and a focusing mirror, the laser beam emitted by the laser is transmitted through the optical path system, transmitted to the scanning mirror oscillator, totally reflected to the focusing mirror by the scanning mirror oscillator, and focused by the focusing mirror on the sand blasting surface of the metal product housing for polishing, so as to form a high-brightness mirror surface pattern and form the mirror surface LOGO.
Optionally, when the first anodization is performed in the step S4, the electrolysis time is 900 to 1000 seconds; in the step S5, when the anodic oxidation is performed for the second time, the electrolysis time is 900 to 1000 seconds.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the processing technology, the mirror surface LOGO can be directly manufactured on the metal sand blasting surface through laser polishing, the mirror surface LOGO mark, namely the mirror surface LOGO, can be processed on the metal surface to form a preset pattern, the flexibility is strong, the production patterns are various, the character style edge of the processed LOGO is neat, no hazardous substance exists, and the production efficiency is high. The glossiness of the processed mirror LOGO can reach 500-1000 GU, and the hardness and the wear resistance of the surface of a product can be effectively guaranteed through two times of anodic oxidation, so that the quality of the product is improved.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily to scale. In the drawings:
FIG. 1 is a flow chart of a process for making a specular LOGO on a metal blasted surface in accordance with one embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
This example describes a process of sand blasting the surface of an aluminum alloy product, and then making a mirror LOGO on the sand blasted surface, which generally may include steps of stamping, sand blasting modification, laser polishing, two times of anodic oxidation protection, and the like.
Specifically, as shown in fig. 1, the processing steps of the process are as follows:
step S1, stamping:
the flat aluminum alloy products (such as plates, sheets, box-shaped base materials and the like) are punched into set shapes by punching equipment so as to reach the standard structure of engineering design.
Step S2, sand blasting:
and the metal sand is sprayed on the surface of the product by utilizing compressed air power, so that the surface of the product is modified and changed. In the embodiment, 150 # iron sand is adopted, the sand blasting pressure is 1.6 to 1.8kg, the conveying speed is 10 to 11Hz, and the surface roughness is 1.1 to 18. The sand blasting in the embodiment adopts twice sand blasting, the first sand blasting adopts fine sand, and the surface roughness is 1.1 to 8; coarse sand is adopted in the secondary sand blasting, and the surface roughness is 10 to 18.
Under the impact effect, the metal surface can generate different roughness and cleanliness, and the metal performance is changed, so that the fatigue resistance and the adhesion strength of the metal workpiece are improved, the durability is prolonged, and the metal leveling and decoration effects are facilitated.
Step S3, laser polishing:
and polishing and modeling the surface of the metal product by using laser equipment through the swinging of the scanning galvanometer to form a mirror LOGO.
In the embodiment, the optical fiber laser marking machine is adopted, and the oscillating mirror swings to perform two times of polishing and modeling (rough polishing and fine polishing) at the formulated position of a metal product through set parameters to form a mirror surface LOGO, wherein the glossiness is 500-1000 GU, and the polishing time is 90-120 seconds.
The high-power optical fiber laser marking machine with the power of more than 200 watts is adopted for rough polishing, the laser energy is 95 percent, and the rough polishing is carried out for 2 times, so that the metal sand grains on the sand blasting surface of the aluminum alloy product reach a molten state, and the unevenness of the sand blasting surface is reduced. And a low-speed low-power fiber laser marking machine is adopted for fine polishing, the power is usually 80 to 100 watts, the laser energy for fine polishing is 80 percent, the fine polishing is carried out for 2 times, so that the surface of the sand-blasting surface generates a mirror LOGO, and the finally achieved glossiness is 500-1000 GU.
The adopted fiber laser marking machine can generally comprise a laser, an optical path system, a scanning vibration mirror and a focusing mirror, wherein laser beams emitted by the laser are transmitted through the optical path system, are transmitted to the scanning vibration mirror, are totally reflected to the focusing mirror through the scanning vibration mirror, and are focused on the sand blasting surface of a metal product shell by the focusing mirror to be polished to form a high-brightness mirror surface pattern to form the mirror surface LOGO.
Step S4, first anodizing:
the aluminum alloy product with the manufactured mirror surface LOGO is placed into electrolyte for electrolysis, the voltage is 9-11V, the electrolysis time is 900-1000 seconds, the temperature of the electrolyte is 16-18 ℃, the thickness of an anode film is 3-4 micrometers, four times of water washing are performed after the electrolysis, and the time of each time of water washing is not less than 30 seconds, so that the mirror surface effect is effectively guaranteed. Through this anodic oxidation, carry out the improvement of wearability and hardness to the surface of metal product, avoid causing too big damage, influence holistic visual effect and quality.
Step S5, second anodizing:
and (5) putting the aluminum alloy product obtained in the step (S4) into electrolyte for electrolysis, wherein the electrolysis time is 900-1000 seconds, the thickness of the anode film is 8-12 microns, and washing with water after electrolysis. And soaking for four times of water washing after electrolysis, wherein the time of each time of water washing is not less than 30 seconds, so that the mirror surface effect is effectively ensured. Through this anodic oxidation, carry out the improvement of wearability and hardness to the surface of metal product, avoid causing too big damage, influence holistic visual effect and quality.
In summary, the processing technology of this application can directly make mirror surface LOGO through laser polishing on the metal sandblast surface, and aluminum alloy housing sandblast surface laser polishing mirror surface LOGO sign is mirror surface LOGO, can process at metal surface and form and predetermine the figure, and the flexibility is strong, and the production pattern is various, and the typeface edge of the LOGO that processes out moreover is neat, and no hazardous substance, production efficiency is fast. The glossiness of the processed mirror LOGO can reach 500-1000 GU, and the hardness and the wear resistance of the surface of a product can be effectively guaranteed through twice anodic oxidation, so that the quality of the product is improved.
The above-mentioned embodiments are provided only for illustrating the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and to implement the present invention, and not to limit the protection scope of the present invention by this, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (5)
1. A process for manufacturing a mirror LOGO on a metal sand blasting surface is characterized by comprising the following steps:
step S1: stamping, namely stamping the flat metal product into a set shape through stamping equipment;
step S2: sand blasting, namely spraying metal sand on the surface of a product by utilizing compressed air power so as to modify the surface of the product;
and step S3: laser polishing, namely polishing and shaping the surface of a metal product by using laser equipment through the swinging of a scanning galvanometer to form a mirror surface LOGO, wherein the polishing time of the sand blasting surface of the product by using the laser equipment in the step S3 is divided into two times, firstly, high-power laser equipment is used for rough polishing treatment for removing shading on the sand blasting surface, then, low-speed low-power laser equipment is used for finish polishing treatment on the sand blasting surface, finally, the mirror surface LOGO with the glossiness of 500-1000 GU is obtained, the laser energy of the high-power laser equipment used for the rough polishing treatment is 95%, and the metal sand grains on the sand blasting surface are roughly polished for 2 times so as to reach a molten state; the laser energy of the low-power laser equipment for fine polishing is 80%, and the fine polishing is carried out for 2 times, so that the surface of the sand blasting generates a mirror LOGO;
and step S4: performing first-time anodic oxidation, putting the product obtained in the step S3 into an electrolyte for electrolysis, wherein the thickness of an anodic oxide film formed by electrolysis is 3-4 micrometers, and washing with water after the electrolysis is finished;
step S5: and (4) carrying out second anodic oxidation, namely putting the product obtained in the step (S4) into an electrolyte for electrolysis, wherein the thickness of an anodic oxide film formed by electrolysis is 8-12 micrometers, and washing with water after the electrolysis is finished to obtain the final product.
2. The process as claimed in claim 1, wherein the metal sand used in step S2 is iron sand, and the blasting pressure is 1.6 to 1.8kg.
3. The process according to claim 2, wherein the blasting in step S2 is performed by two times, the first time is performed by fine sand; the second sand blasting is performed by coarse sand.
4. The process according to claim 1, wherein the laser device used in step S3 comprises a laser, an optical path system, a scanning galvanometer and a focusing mirror, wherein a laser beam emitted by the laser is transmitted through the optical path system, transmitted to the scanning galvanometer, totally reflected to the focusing mirror by the scanning galvanometer, and focused on the sand blasting surface of the metal product housing by the focusing mirror for polishing to form a high-brightness mirror surface pattern, thereby forming the mirror surface LOGO.
5. The process according to claim 1, wherein the electrolysis time for the first anodization in step S4 is 900 to 1000 seconds; in the step S5, the electrolysis time is 900 to 1000 seconds when the second anodization is performed.
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| CN202010773440.6A CN111842594B (en) | 2020-08-04 | 2020-08-04 | Process for manufacturing mirror LOGO on metal sand blasting surface |
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| CN112719031B (en) * | 2020-12-17 | 2023-03-31 | 东莞市智汇五金有限公司 | Earphone shell decorative cover machining die and machining method thereof |
| CN113458611B (en) * | 2021-06-22 | 2023-01-17 | 武汉华工激光工程有限责任公司 | Laser marking method and device for aluminum alloy high-brightness light processing |
| CN113714645B (en) * | 2021-08-23 | 2023-03-31 | 深圳信息职业技术学院 | Laser polishing apparatus and laser polishing method |
| CN117947481B (en) * | 2023-12-21 | 2024-07-09 | 建民五金科技(东莞)有限公司 | Manufacturing process of aluminum alloy finished product with mirror surface pattern |
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| JP4525547B2 (en) * | 1995-07-20 | 2010-08-18 | 株式会社日立製作所 | Sheet metal product manufacturing method |
| CN105965215A (en) * | 2016-06-30 | 2016-09-28 | 维沃移动通信有限公司 | Logo production method and logo product |
| CN106304707A (en) * | 2016-10-31 | 2017-01-04 | 维沃移动通信有限公司 | The shell of a kind of electronic equipment and shell preparation method |
| CN108130578A (en) * | 2017-12-07 | 2018-06-08 | 研精舍(上海)精密机械加工有限公司 | Metallic mirror surface LOGO manufacture crafts |
| CN108500573A (en) * | 2018-06-19 | 2018-09-07 | Oppo（重庆）智能科技有限公司 | Surface treatment method, metal center and the electronic equipment of metal center |
| CN109676327A (en) * | 2019-01-28 | 2019-04-26 | 合肥迪灿智能科技有限公司 | Metal piece highlight mirror surface LOGO manufacturing process |
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