Preparation method of metal code disc without coating and metal code disc

Abstract

The present application relates to the technical field of code disc preparation, and specifically, to a method for preparing a metal code disc that does not require coating and a metal code disc, the method comprising: polishing the edge of the metal material, photolithography the polished metal material to obtain an initial metal code disc; cleaning the initial metal code disc after the photolithography with a neutral lotion and pure water, and after the initial metal code disc is dried, blackening the initial metal code disc according to a preset time and a preset temperature; processing the initial metal code disc after the blackening with a precision machine tool, and performing an appearance inspection based on a microscope to obtain a metal code disc that does not require coating. The present application can not only improve the surface absorption rate, but also reduce the reflection of light on the metal surface, thereby reducing the reflectivity of the metal code disc surface and improving the accuracy and stability of the metal code disc.

Description

Technical Field

[0001] The present application relates to the technical field of code disc preparation, and in particular to a method for preparing a metal code disc that does not require coating and a metal code disc. Background Art

[0002] In modern industrial production, metal code discs play an important role in various mechanical equipment and electronic products. With its excellent conductivity, wear resistance and stability, metal code discs have become an indispensable part of industrial manufacturing. They are widely used, from precision electronic equipment to heavy machinery and equipment.

[0003] However, the performance and application range of metal code discs are often limited by their preparation methods. In traditional metal code disc preparation methods, coating treatment is a common means, such as chrome plating or nickel plating. The main purpose of coating treatment is to reduce the reflectivity of light, that is, the surface reflectivity, in order to cope with the scanning and reading of the laser beam, but the coating treated with coating is more susceptible to external environmental factors, such as temperature, humidity and other factors, resulting in the stability of reflectivity, and there are also problems such as high preparation cost and easy wear, which affect its accuracy and stability. In addition, the selection of coating materials and the control of process parameters will also have a direct impact on the performance of the metal code disc. If the coating is uneven or defective, it will cause scattering or reflection of the laser beam, thereby affecting the accuracy and reliability of reading. Summary of the invention

[0004] The main purpose of the present application is to provide a method for preparing a metal code disc without coating, aiming to overcome the technical problems in the prior art of relying on coating on the metal code disc to reduce the reflectivity, thus affecting its accuracy and stability.

[0005] In order to achieve the above-mentioned invention problem, the present application proposes a method for preparing a metal code disc without coating, the method comprising:

[0006] The edge of the metal material is polished, and the polished metal material is photolithographically processed to obtain an initial metal code disk, wherein the photolithographic processing specifically includes the steps of cleaning, drying, gluing, pre-baking, exposing, developing, gluing, etching and drying again on the metal material;

[0007] Cleaning the initial metal code disk after the photolithography process with a neutral detergent and pure water, and after drying the initial metal code disk, performing a blackening process on the initial metal code disk according to a preset time and a preset temperature;

[0008] The initial metal code disc after the blackening treatment is processed by a precision machine tool, and the appearance is inspected based on a microscope to obtain a metal code disc that does not require coating.

[0009] Furthermore, the step of performing blackening treatment includes:

[0010] The initial metal code disc is immersed in a blackening agent, wherein the blackening agent is composed of the following raw materials in the following mass percentages:

[0011] 12%-15% organic acid, 2%-5% zinc chloride, 5%-10% sodium sulfate and copper sulfate, 0.2%-0.8% sodium tartrate, 4%-8% selenium dioxide, 12%-19% OP-10 and 0.1%-0.3% sodium oxalate.

[0012] Furthermore, the preset time is 5-8 minutes, and the preset temperature is 22-28 degrees Celsius.

[0013] Furthermore, the step of polishing the edge of the metal material comprises:

[0014] Selecting a corresponding polishing tool from a preset polishing tool library according to the characteristics of the metal material, the polishing tool comprising a first polishing tool and a second polishing tool, the characteristics comprising at least the type, hardness and surface roughness of the metal material;

[0015] Preliminarily polishing the edge of the metal material based on the first polishing tool to remove impurities on the surface;

[0016] The metal material is finely polished based on the second polishing tool, wherein the angle and pressure of the polishing tool are continuously adjusted to make the surface of the metal material reach a preset smoothness and glossiness.

[0017] Furthermore, after the step of finely polishing the metal material using the second polishing tool, the method further includes:

[0018] Acquiring surface data of the metal material, wherein the surface data at least includes scratches and dents;

[0019] Identify the location, size and depth of scratches and depressions on the surface of the metal material;

[0020] Analyze the surface data, and determine a repair plan for the scratches and dents based on the analysis results, the repair plan at least including the selection of repair tools, the control of repair strength and the setting of repair time;

[0021] The scratches and dents on the surface of the metal material are repaired according to the repair scheme until the preset surface quality requirements are met.

[0022] Further, the metal material after the polishing process is subjected to photolithography to obtain an initial metal code disk, wherein the photolithography process specifically includes the steps of cleaning, drying, gluing, pre-baking, exposing, developing, gluing, etching and drying again on the metal material, including:

[0023] Cleaning the metal material and drying the metal material;

[0024] Uniformly coating the photoresist on the metal material, wherein the photoresist and the metal material have corresponding properties;

[0025] Pre-baking the metal material, projecting a preset pattern or text onto the photoresist, and exposing it based on a preset light source to form an anti-corrosion layer corresponding to the pattern or text;

[0026] Baking the photoresist again to solidify the photoresist;

[0027] The metal material not protected by the anti-corrosion layer is removed to form a desired code disc structure, and then the structure is dried again to obtain an initial metal code disc.

[0028] Furthermore, the step of cleaning the initial metal code disk after the photolithography process based on a neutral detergent and pure water comprises:

[0029] Put the initial metal code disk after photolithography into a cleaning tank, add an appropriate amount of neutral detergent, and fully stir and soak it to ensure that the neutral detergent can fully penetrate into every corner of the surface of the initial metal code disk;

[0030] The initial metal code disk is rinsed with pure water according to a preset water flow rate and pressure;

[0031] The rinsed initial metal code disc is dried using a drying device.

[0032] Furthermore, the step of processing the initial metal code disc after blackening by precision machine tool comprises:

[0033] According to the characteristics of the metal material, selecting a precision machine tool corresponding to the characteristics of the metal material from a preset machine tool library;

[0034] According to the processing requirements of the initial metal code disc, a corresponding processing technology is formulated, wherein the processing requirements at least include film protection, precision cutting and degumming;

[0035] According to the characteristics of the metal material and the processing requirements, the motion parameters of the precision machine tool are adjusted, and the motion parameters at least include cutting speed, feed speed and cutting depth, so that the precision machine tool performs processing according to the adjusted motion parameters.

[0036] Furthermore, the step of performing appearance inspection based on a microscope includes:

[0037] Observe the initial metal code disk processed by the precision machine tool under a microscope to obtain index data of the initial metal code disk, wherein the index data at least includes the surface quality, dimensional accuracy and edge state of the initial metal code disk;

[0038] Determine whether the indicator data meets the preset qualification standard;

[0039] If the index data meets the preset qualification standard, the initial metal code disk is determined to be a qualified metal code disk;

[0040] If the index data does not meet the preset qualification standard, the initial metal code disc is subjected to precision machine tool processing again until the index data meets the preset qualification standard.

[0041] The present application also proposes a metal code disk, which is prepared by any of the above-mentioned methods for preparing a metal code disk without the need for coating.

[0042] Beneficial effects:

[0043] The present application can effectively reduce the surface reflectivity of the metal code disc through the steps of photolithography, blackening and precision machine tool processing. After the metal code disc is blackened, it can not only improve the surface absorption rate, but also reduce the reflection of light on the metal surface, thereby reducing the reflectivity of the metal code disc surface, thereby improving the reading accuracy and stability of the metal code disc. Compared with the existing coating treatment, the metal code disc of the present application has a higher ability to resist environmental interference after blackening treatment, is not easily affected by external factors such as temperature and humidity, and has a higher reflectivity stability. In addition, the metal code disc of the present application has a low preparation cost and is not easy to wear, so it has a longer service life.

[0044] In summary, the metal code disk of the present application has significant advantages in performance, stability and cost. It not only reduces the reflectivity, improves the reading accuracy and stability, but also enhances the ability to resist environmental interference and prolongs the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the steps of a method for preparing a metal code disk without the need for coating in one embodiment of the present application.

[0046] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0048] It will be appreciated by those skilled in the art that, unless expressly stated, the singular forms "one", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of features, integers, steps, operations, elements, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components, and / or groups thereof. It should be understood that when an element is said to be "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may also be an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any module and all combinations of one or more associated listed items.

[0049] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with those in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0050] Reference Figure 1 The present invention provides a method for preparing a metal code disc without coating, comprising the following steps S1-S3:

[0051] S1: polishing the edge of the metal material, and performing photolithography on the polished metal material to obtain an initial metal code disk, wherein the photolithography specifically includes the steps of cleaning, drying, gluing, pre-baking, exposing, developing, gluing, etching and drying again on the metal material;

[0052] In step S1, polishing the edge of the metal material can ensure the flatness and smoothness of the metal surface. The polishing process can preferably remove tiny protrusions and impurities on the metal surface by mechanical or chemical means. The photolithography process includes multiple steps, including cleaning, drying, gluing, pre-baking, exposure, development, gluing, etching and drying again. Specifically, the cleaning step is to use a special cleaning agent to remove stains on the surface, and then rinse it with pure water to ensure that there is no chemical residue; the drying step is to remove the residual moisture on the metal surface to ensure that the glue layer can be evenly and stably attached to the metal surface during gluing. The gluing process needs to control the thickness of the glue layer to ensure the effect of exposure and development; the pre-baking step is to make the glue layer more stable, enhance its adhesion to the metal surface, and prevent it from falling off or deforming during the subsequent exposure and development process; the exposure uses the principles of light interference and diffraction to remove the pattern from the mask. The template is transferred to the metal surface coated with photoresist. During the exposure process, the accuracy and precision of the pattern can be ensured by controlling the exposure time, the wavelength and intensity of the light source, etc.; the development step is to chemically treat the exposed photoresist so that it shows the desired pattern. During the development process, it is preferred to use a special developer to remove the unexposed photoresist and leave the desired pattern; the solid glue step is to enhance the adhesion between the photoresist and the metal surface to prevent it from falling off or deforming during the subsequent etching process. It is preferred to use a thermal curing method to tightly combine the photoresist with the metal surface; the etching step can use chemical or physical methods to remove the metal part not covered by the photoresist to form the desired pattern and structure. During the etching process, the appropriate etching method and etching solution can be selected according to the properties of the metal material and the accuracy of the desired pattern; the drying step again is to remove the moisture and residue that may be generated during the etching process to ensure the dryness and cleanliness of the metal surface. After this series of steps, the polishing and photolithography of the metal material are completed, and the initial metal code disk with the desired pattern and structure is obtained. In this embodiment, the surface is polished and mirrored to make the reflectivity of the metal surface between 65% and 85%, and then the metal surface is etched using an optical etching method to reduce its reflectivity. During the etching process, this embodiment preferably selects suitable etching liquid and etching conditions to ensure that part of the material on the metal surface can be accurately removed without damaging the photoresist and other parts, and reduces the reflectivity of the metal surface by accurately controlling the depth and range of etching.

[0053] S2: cleaning the initial metal code disk after the photolithography process with a neutral detergent and pure water, and after drying the initial metal code disk, performing a blackening process on the initial metal code disk according to a preset time and a preset temperature;

[0054] In step S2, the initial code disk is cleaned with a neutral detergent and pure water to ensure that the photoresist and other impurities on the surface of the metal material are completely removed. After cleaning, the metal material needs to be dried to ensure that there is no residual moisture or other solvents on its surface, and then the metal material is blackened according to the preset time and temperature to form a black oxide layer on the surface of the metal material, thereby reducing its reflectivity. The specific parameters of the blackening treatment (such as time and temperature) can preferably be precisely controlled according to the type of metal material and the required reflectivity. In a preferred embodiment, during the blackening process, it is ensured that the metal material is heated evenly to avoid local overheating or overcooling, and the metal material after the blackening treatment is quality inspected to ensure that its reflectivity meets the requirements (preferably around 5%-8%). After the blackening treatment is completed, the initial metal code disk has the characteristics of low reflection, and the metal material can be further processed or assembled according to specific needs.

[0055] S3: Processing the initial metal code disc after the blackening treatment with a precision machine tool, and performing an appearance inspection under a microscope to obtain a metal code disc that does not require coating;

[0056] In step S3, the initial metal code disc after the blackening treatment is processed by precision machine tools. The precision machine tool processing can preferably use CNC machine tools or other precision processing equipment to process the initial metal code disc with high precision and high surface quality. In this step, according to the specific design requirements of the metal code disc, select appropriate processing technology and process parameters, including but not limited to cutting speed, feed speed, cutting depth, etc., to ensure that the processed metal code disc meets the requirements of precision and surface quality. Finally, an appearance inspection is performed based on a microscope. The appearance inspection is to ensure that the surface quality and geometric dimensions of the metal code disc meet the design requirements. It is preferably inspected using an optical microscope or an electron microscope. During the inspection process, the surface flatness, surface roughness, surface defects, etc. of the metal code disc are comprehensively evaluated to ensure that the quality of the metal code disc meets the requirements.

[0057] In steps S1 to S3, the present application can effectively reduce the surface reflectivity of the metal code disk through the steps of photolithography, blackening and precision machine tool processing. After the metal code disk is blackened, it can not only improve the surface absorption rate, but also reduce the reflection of light on the metal surface, thereby reducing the reflectivity of the metal code disk surface, thereby improving the reading accuracy and stability of the metal code disk. Compared with the existing coating treatment, the metal code disk of the present application has a higher ability to resist environmental interference after blackening treatment, is not easily affected by external factors such as temperature and humidity, and has a higher reflectivity stability. In addition, the metal code disk of the present application has a low preparation cost and is not easy to wear, so it has a longer service life.

[0058] In summary, the metal code disk of the present application has significant advantages in performance, stability and cost. It not only reduces the reflectivity, improves the reading accuracy and stability, but also enhances the ability to resist environmental interference and prolongs the service life.

[0059] In one embodiment, the step of polishing the edge of the metal material comprises:

[0060] Selecting a corresponding polishing tool from a preset polishing tool library according to the characteristics of the metal material, the polishing tool comprising a first polishing tool and a second polishing tool, the characteristics comprising at least the type, hardness and surface roughness of the metal material;

[0061] Preliminarily polishing the edge of the metal material based on the first polishing tool to remove impurities on the surface;

[0062] The metal material is finely polished based on the second polishing tool, wherein the angle and pressure of the polishing tool are continuously adjusted to make the surface of the metal material reach a preset smoothness and glossiness.

[0063] In the above embodiment, since different metal materials may have different requirements for polishing tools and polishing methods, the corresponding polishing tools are selected in the preset polishing tool library according to the type, hardness and surface roughness of the metal material. For example, some softer metals require the use of softer polishing tools to avoid excessive wear on the surface of the material, while some metals with higher hardness may require the use of harder polishing tools to ensure that impurities and unevenness on the surface can be effectively removed. The purpose of the preliminary polishing step is to remove impurities and larger unevenness on the surface of the metal material. In this step, a first polishing tool can be used, which can have a rougher surface or a larger particle size to more effectively remove impurities. By adjusting the angle and pressure of the polishing tool, it can be ensured that the polishing process is carried out evenly and effectively to avoid excessive damage to the metal material. After the preliminary polishing, the purpose of fine polishing is to further improve the smoothness and glossiness of the surface of the metal material. In this step, a second polishing tool is used, which has a finer surface or a smaller particle size to produce a smoother surface effect. Similarly, by continuously adjusting the angle and pressure of the polishing tool, it can be ensured that the surface of the metal material reaches the preset smoothness and glossiness. In this example, appropriate polishing tools are selected according to the characteristics of metal materials, and the surface of the metal material is polished through two steps, namely, preliminary polishing and fine polishing, which can ensure the efficiency and effect of the processing process. In addition, by continuously adjusting the angle and pressure of the polishing tool, the accuracy and quality of the polishing process can be further improved to meet the requirements of different applications for the surface quality of metal materials.

[0064] In a preferred embodiment, different types of metal materials are classified and their characteristics are analyzed. According to the characteristics of the metal materials, such as the type, hardness and surface roughness, the metal materials are classified and their characteristic data are recorded. For different types of metal materials, various types of polishing tools corresponding to the metal materials are obtained, including polishing tools of different shapes, materials and functions. For example, diamond polishing tools, alumina polishing tools, etc. can be considered to meet the polishing needs of different metal materials. Based on the above information, an initial inventory of various polishing tools is established. These polishing tools include first polishing tools and second polishing tools of various types and specifications to meet the needs of different metal materials, wherein the first polishing tool is mainly used for initial polishing, which can quickly remove burrs and defects on the surface of metal materials. The second polishing tool is used for fine polishing, which can further improve the surface quality of the metal material on the basis of the first polishing.

[0065] In one embodiment, after the step of finely polishing the metal material using the second polishing tool, the method further comprises:

[0066] Acquiring surface data of the metal material, wherein the surface data at least includes scratches and dents;

[0067] Identify the location, size and depth of scratches and depressions on the surface of the metal material;

[0068] Analyze the surface data, and determine a repair plan for the scratches and dents based on the analysis results, the repair plan at least including the selection of repair tools, the control of repair strength and the setting of repair time;

[0069] The scratches and dents on the surface of the metal material are repaired according to the repair scheme until the preset surface quality requirements are met.

[0070] In the above embodiment, the step of obtaining the surface data of the metal material can be implemented in a variety of ways, such as using an optical microscope, an electron microscope, a surface roughness measuring instrument and other equipment to scan and measure the surface of the metal material to obtain parameters such as the microscopic morphology and surface roughness of the surface. In the step of identifying the position, size and depth of scratches and depressions on the surface of the metal material, image processing technology, such as edge detection, threshold segmentation and other algorithms, can be used to process the acquired surface image, so as to extract the characteristic information of the scratches and depressions. In the step of analyzing the surface data, appropriate analysis methods and tools can be selected according to actual conditions. For example, statistical analysis, machine learning and other methods can be used to process and analyze the surface data to find out the laws and characteristics of scratches and depressions, and then determine the repair plan. In the process of determining the repair plan, based on factors such as the type of repair tool, the control of the repair force, and the setting of the repair time, a suitable repair tool is selected to improve the repair efficiency and quality, and the reasonable setting of the repair force and time can avoid excessive damage or insufficient repair of the metal material. Finally, the scratches and depressions on the surface of the metal material are repaired according to the repair plan until the preset surface quality requirements are met. During the repair process, the repair effect can be monitored in real time and the repair parameters can be adjusted in time to ensure the quality and efficiency of the repair.

[0071] In one embodiment, the metal material after the polishing process is subjected to photolithography to obtain an initial metal code disk, wherein the photolithography process specifically includes the steps of cleaning, drying, gluing, pre-baking, exposing, developing, gluing, etching and drying again on the metal material, including:

[0072] Cleaning the metal material and drying the metal material;

[0073] Uniformly coating the photoresist on the metal material, wherein the photoresist and the metal material have corresponding properties;

[0074] Pre-baking the metal material, projecting a preset pattern or text onto the photoresist, and exposing it based on a preset light source to form an anti-corrosion layer corresponding to the pattern or text;

[0075] Baking the photoresist again to solidify the photoresist;

[0076] The metal material not protected by the anti-corrosion layer is removed to form a desired code disc structure, and then the structure is dried again to obtain an initial metal code disc.

[0077] In the above embodiment, it is used to form accurate patterns or texts on metal materials, and at the same time, based on the optical photolithography method, the metal surface is etched to achieve the effect of reducing reflection. By cleaning and drying the metal material, the surface can be ensured to be clean and free of impurities, providing a good foundation for the uniform coating of the photoresist. When coating the photoresist, it is necessary to select a photoresist that matches the properties of the metal material to ensure that a clear anti-corrosion layer can be formed during the exposure process. The pre-baking process can remove the solvent in the photoresist and increase the adhesion and stability of the photoresist. During the exposure process, the preset pattern or text is projected onto the photoresist through a preset light source to form an anti-corrosion layer corresponding to the pattern or text. This anti-corrosion layer can protect the metal material from being completely removed during the subsequent etching process, thereby forming the required code disk structure. The baking process further solidifies the photoresist and improves its adhesion and stability on the metal material. During the etching process, the metal material not protected by the anti-corrosion layer is accurately removed to form a code disk structure. Finally, the drying process is performed again to remove the remaining solvent and moisture, ensuring the stability and reliability of the initial metal code disk. In summary, by performing photolithography on metal materials, the required code disk structure can be accurately formed. At the same time, based on the optical photolithography method, the metal surface is etched to achieve the effect of reducing reflection.

[0078] In one embodiment, the step of cleaning the initial metal code disk after photolithography processing based on a neutral detergent and pure water comprises:

[0079] Put the initial metal code disk after photolithography into a cleaning tank, add an appropriate amount of neutral detergent, and fully stir and soak it to ensure that the neutral detergent can fully penetrate into every corner of the surface of the initial metal code disk;

[0080] The initial metal code disk is rinsed with pure water according to a preset water flow rate and pressure;

[0081] The rinsed initial metal code disc is dried using a drying device.

[0082] In the above embodiment, in order to further improve the cleaning effect, the initial metal code disc can be pre-cleaned before adding the neutral detergent. Pure water or a low-concentration detergent can be used for pre-cleaning to remove dust, oil and other impurities on the surface. The pre-cleaning time can be adjusted according to the actual situation to ensure that the surface cleanliness meets the requirements. When adding the neutral detergent, adjust the dosage, adjust the amount of detergent according to the actual situation, and stir and soak it fully to ensure that the detergent can be evenly distributed on the surface of the metal code disc. During the flushing process, the flow rate and pressure of the pure water are controlled to be stable to avoid excessive impact force to avoid damage to the surface of the metal code disc. At the same time, the flushing time is adjusted according to the actual situation to ensure that the residual detergent and impurities on the surface are thoroughly rinsed. During the drying process, you can choose to use hot air drying equipment or vacuum drying equipment. The hot air drying equipment can remove moisture from the surface of the metal code disc by heating the air, and thermal damage to the metal code disc can be avoided by controlling the temperature and wind speed. The vacuum drying equipment can evaporate the moisture at low pressure, thereby removing moisture faster. In summary, the steps of cleaning the initial metal code disk with neutral detergent and pure water are carried out by controlling the parameters and operations of each link to ensure that the cleaning effect and the performance of the metal code disk meet the requirements.

[0083] In another embodiment, in order to improve the cleaning efficiency and cleaning quality of the metal code disc, an automated cleaning device can be used to clean the initial metal code disc, and the automated cleaning device may include an automatic feeding system, a cleaning system, a flushing system, and a drying system. In the automatic feeding system, the initial metal code disc can be automatically fed into the cleaning tank by an automatic feeding device such as a conveyor belt or a robotic arm. The automatic feeding system can ensure that the metal code disc maintains a stable position and posture during the cleaning process to avoid motion errors, thereby affecting the cleaning effect. In the cleaning system, rotary spraying or ultrasonic cleaning can be used to clean the initial metal code disc in an all-round manner. Rotary spray cleaning can evenly spray a neutral detergent on the surface of the metal code disc through a high-speed rotating nozzle, and thoroughly clean the dirt and impurities on the surface through the force of rotation and spraying. Ultrasonic cleaning can strongly scour and peel off the surface of the metal code disc through tiny bubbles generated by high-frequency vibration, and quickly remove dirt and impurities that are difficult to clean. In the flushing system, the same pure water flushing method as manual cleaning can be used to fully rinse the metal code disc to ensure that the residual lotion and impurities on the surface are thoroughly rinsed. At the same time, the system can also be equipped with an automatic drainage device to automatically discharge the waste water after flushing to avoid pollution to the environment. In the drying system, hot air drying or vacuum drying can be used to quickly dry the metal code disc. The system can avoid thermal damage or deformation to the metal code disc by controlling parameters such as temperature and wind speed. At the same time, the system can also be equipped with an automatic discharging device to automatically deliver the dried metal code disc for subsequent processing and use. In summary, the use of automated cleaning equipment to clean the initial metal code disc can greatly improve the cleaning efficiency and cleaning quality, reduce manual intervention and operating errors, and also reduce production costs and environmental pollution.

[0084] In one embodiment, the step of performing blackening treatment includes:

[0085] The initial metal code disc is immersed in a blackening agent, wherein the blackening agent is composed of the following raw materials in the following mass percentages:

[0086] 12%-15% organic acid, 2%-5% zinc chloride, 5%-10% sodium sulfate and copper sulfate, 0.2%-0.8% sodium tartrate, 4%-8% selenium dioxide, 12%-19% OP-10 and 0.1%-0.3% sodium oxalate.

[0087] In the above embodiment, the initial metal code disk is placed in a blackening agent, and a black oxide film is formed on the metal surface through a chemical reaction, thereby achieving the effect of reducing the reflectivity of light. In this process, the mass and percentage of each raw material are accurately calculated to ensure that the quality of the generated oxide film is stable and durable. Among them, organic acid is one of the main ingredients in the blackening agent, which can promote the oxidation reaction on the metal surface, thereby accelerating the formation of black oxide film; zinc chloride can accelerate the rate of oxidation reaction and improve blackening efficiency; the combination of sodium sulfate and copper sulfate can enhance the adhesion and corrosion resistance of the oxide film, making it more stable and durable; sodium tartrate can adjust the pH value of the blackening agent to ensure the smooth progress of the oxidation reaction; selenium dioxide is a strong oxidant that can accelerate the oxidation process on the metal surface and make the black oxide film more uniform and dense; OP-10 is a surfactant. The full name of OP-10 is Octylphenol ethoxylate, and its Chinese name is octylphenol polyoxyethylene ether, which can reduce the surface tension of the blackening agent and make it better wet the metal surface, thereby enhancing the adhesion of the oxide film; sodium oxalate can stabilize the performance of the blackening agent to prevent it from decomposing or deteriorating during use. Through the synergistic effect of the above raw materials, the initial metal code disc can be treated with blackening to form a uniform, dense and stable black oxide film on the surface, thereby achieving the effect of reducing the reflectivity of light and improving the concealment and safety of the metal code disc. It is worth noting that the raw material ratio of this embodiment has been carefully designed and verified by multiple experiments, aiming to achieve the best product performance and economic benefits. Through scientific and reasonable ratios, the reflectivity of the low-reflection part of the metal code disc is about 10%-15%. At the same time, advanced production processes and equipment are used to ensure uniform mixing and sufficient reaction of the raw materials. These measures jointly ensure the stability and consistency of the product and provide users with a reliable product experience.

[0088] In a more specific embodiment, for the blackening agent, the mass percentage of each raw material can be further set as: 13% organic acid, 3% zinc chloride, 7% sodium sulfate and copper sulfate mixture (wherein the mass ratio of sodium sulfate and copper sulfate is 2: 1), 0.5% sodium tartrate, 6% selenium dioxide, 15% OP-10 and 0.2% sodium oxalate. This specific ratio can further improve production efficiency and reduce production costs while ensuring the quality of the black oxide film. In addition, in order to improve the uniformity and consistency of the initial metal code disk during the blackening process, an appropriate amount of agitator can be added to the blackening agent so that the blackening agent is kept in a continuous stirring state during the treatment process. In a more preferred embodiment, some auxiliary agents, such as surfactants, corrosion inhibitors, etc., can also be added to improve the wettability of the metal surface and prevent excessive corrosion. In addition, a special structure, such as a special groove or protrusion, is provided on the metal disk to increase the contact area between the blackening agent and the metal surface, thereby improving the uniformity and consistency of the blackening treatment to ensure the best blackening effect. At the same time, intelligent sensors and real-time monitoring systems can also be introduced to monitor the temperature, concentration and other key parameters of the blackening agent in real time, and automatically adjust the treatment process as needed to ensure that each step of the operation reaches the optimal state. Alternatively, a constant temperature device and a timer can be set to ensure that the blackening treatment is carried out under optimal conditions. In general, this embodiment achieves efficient, stable and low-cost blackening treatment of metal code discs through precise raw material ratios, advanced production processes and equipment, and strict production control. This not only improves the concealment and safety of the metal code disc, but also provides users with a more reliable and high-quality product experience.

[0089] In one embodiment, the step of performing precision machine tool processing on the initial metal code disc after blackening treatment comprises:

[0090] According to the characteristics of the metal material, selecting a precision machine tool corresponding to the characteristics of the metal material from a preset machine tool library;

[0091] According to the processing requirements of the initial metal code disc, a corresponding processing technology is formulated, wherein the processing requirements at least include film protection, precision cutting and degumming;

[0092] According to the characteristics of the metal material and the processing requirements, the motion parameters of the precision machine tool are adjusted, and the motion parameters at least include cutting speed, feed speed and cutting depth, so that the precision machine tool performs processing according to the adjusted motion parameters.

[0093] In the above embodiment, according to the characteristics of the metal material, an appropriate precision machine tool is selected, and a corresponding processing technology is formulated to meet the processing requirements, and then the motion parameters of the precision machine tool are adjusted according to the characteristics of the metal material and the processing requirements to ensure that the precision machine tool is processed according to the adjusted motion parameters. When performing this series of steps, based on the characteristics of the metal material, the selection of a suitable precision machine tool and the formulated processing technology can maximize the advantages of the characteristics of the metal material. At the same time, for the selection in the preset machine tool library, based on the characteristics and applicable scope of different precision machine tools, a precision machine tool corresponding to the characteristics of the metal material is selected. For the formulation of processing requirements, based on the processing requirements such as film protection, precision cutting and degumming, a corresponding processing process is formulated to ensure that various requirements can be met during the processing. In the process of adjusting the motion parameters of the precision machine tool, according to the characteristics of the metal material and the processing requirements, the motion parameters such as cutting speed, feed speed and cutting depth are set according to actual needs to ensure that the precision machine tool can be processed according to the adjusted motion parameters, thereby ensuring the processing quality and efficiency.

[0094] In one embodiment, the step of performing appearance inspection based on a microscope includes:

[0095] Observe the initial metal code disk processed by the precision machine tool under a microscope to obtain index data of the initial metal code disk, wherein the index data at least includes the surface quality, dimensional accuracy and edge state of the initial metal code disk;

[0096] Determine whether the indicator data meets the preset qualification standard;

[0097] If the index data meets the preset qualification standard, the initial metal code disk is determined to be a qualified metal code disk;

[0098] If the index data does not meet the preset qualification standard, the initial metal code disc is subjected to precision machine tool processing again until the index data meets the preset qualification standard.

[0099] In the above embodiment, the index data is obtained by observing the surface quality, dimensional accuracy and edge state of the initial metal code disk, and judged and processed according to the preset qualified standards. Specifically, through the magnification function of the microscope, the operator can clearly observe the surface details of the metal code disk, including possible defects, dimensional deviations and edge conditions. These observations will be recorded and used as the basis for subsequent judgment. Secondly, the obtained index data will be used to compare with the preset qualified standards, which may include surface flatness, dimensional accuracy range, and edge integrity requirements. Through these standards, it can be ensured that the quality of the final product meets the requirements to meet customer needs and industry standards. Next, the operator will judge whether the initial metal code disk meets the preset qualified standards based on the analysis of the index data. If it meets, the metal code disk will be identified as a qualified product and can enter the next production stage. If it does not meet, further processing will be required. For metal code disks that do not meet the standards, according to the process described in the above embodiment, they will be processed again by precision machine tools, and the processing parameters can be adjusted, defects can be repaired, or certain parts can be reprocessed as needed until the index data meets the preset qualified standards. Finally, the metal code discs that meet the standards after processing will be judged as qualified products, while those that do not meet the standards will be eliminated or reworked. The purpose of this process is to ensure that the metal code discs produced meet the expected quality level, improve the product qualification rate and customer satisfaction, ensure that the final products meet high quality standards, and improve production efficiency and product competitiveness.

[0100] In one embodiment, the initial metal code disk is blackened according to a preset time and a preset temperature, with the main purpose of better reducing the reflectivity. The preset time is 5-8 minutes, and the preset temperature is 22-28 degrees Celsius.

[0101] In the above embodiment, by blackening the initial metal code disc, its surface reflectivity can be significantly reduced, and the accuracy and stability of subsequent processing can be improved. Specifically, the blackening treatment can increase the roughness of the surface of the metal code disc, thereby effectively reducing the reflection of light on its surface. This is crucial for many optical applications, such as scanning, printing, and recognition. In this embodiment, a preset time and a preset temperature are set to control the degree of blackening treatment. The preset time is set to 5-8 minutes, which is based on a comprehensive consideration of the material, thickness, and required degree of blackening of the metal code disc. If the time is too short, the blackening effect may not be obvious; if the time is too long, the metal may be excessively corroded, resulting in structural damage. Similarly, the preset temperature is set to 22-28 degrees Celsius, because within this temperature range, the reaction rate of the metal code disc is moderate, which can ensure the blackening effect without causing deformation or damage to the material due to excessively high temperature. In addition, this temperature range is also convenient for control in actual operation, avoiding the inconvenience caused by too high or too low temperature. Through the above-mentioned blackening treatment, a more stable and precise working environment can be provided for subsequent metal code disc applications. Whether used for optical scanning, printing, identification and other fields, the blackened metal code disc can better meet the usage requirements and improve the overall work efficiency and performance.

[0102] In another embodiment, the blackening process is further improved, and the initial metal code disk is blackened by an electrochemical corrosion method. Specifically, an appropriate corrosive agent is selected, which can electrocorrode the surface of the metal code disk uniformly and deeply at a preset time and temperature, thereby obtaining an ideal blackening effect. The choice of chemical corrosion method is mainly based on its advantages in uniformity and depth control of metal surface treatment. By adjusting the type, concentration and treatment time of the corrosive agent, the roughness and reflectivity of the metal code disk surface can be accurately controlled to meet the needs of different application scenarios. In actual operation, the metal code disk is first cleaned to remove oil and impurities on the surface to ensure that the corrosive agent can fully contact the metal surface. Then, the metal code disk is placed in a solution containing a corrosive agent, and the preset time and preset temperature are controlled to allow the corrosive agent to react chemically with the metal surface, thereby achieving a blackening effect. The metal code disk treated by the chemical corrosion method not only has a significantly improved surface roughness, but also a significantly reduced reflectivity, which significantly improves its performance in optical applications. At the same time, since the chemical corrosion method has the characteristics of uniform treatment and high efficiency, it also greatly improves production efficiency and cost control in actual applications. In summary, by blackening the initial metal code disc, whether by physical or chemical methods, its surface reflectivity can be effectively reduced, and the accuracy and stability of subsequent processing can be improved. This provides broader possibilities for the application of metal code discs in the fields of optics, printing, and recognition, and promotes the continuous development and progress of related technologies.

[0103] The present application also proposes a metal code disc, which is prepared by any of the above-mentioned methods for preparing a metal code disc without coating. During the preparation process, the metal code disc does not need to be coated, thereby avoiding the environmental pollution and resource waste problems that may occur in the traditional coating process. In addition, due to the material properties of the metal code disc itself, it has good conductivity, high temperature resistance and corrosion resistance, and can meet the application requirements in various harsh environments. In specific applications, the metal code disc can be used in the fields of encoding, decoding, data storage and transmission in electronic equipment. For example, in a communication system, a metal code disc can be used as an interface for high-speed data transmission to achieve fast and accurate transmission of information; in the field of industrial automation, a metal code disc can be used for precise positioning and identification of robots, automation equipment, etc.; in medical equipment, a metal code disc can be used for the storage and transmission of medical imaging data to improve medical efficiency and quality. In short, the method for preparing a metal code disc without coating proposed in the present application and the metal code disc prepared therefrom not only simplifies the preparation process and reduces costs, but also improves the performance and application range of the product, and has important practical application value and promotion prospects.

[0104] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for preparing a metal code disc without coating, characterized in that: The method comprises: The edge of the metal material is polished, and the polished metal material is photolithographically processed to obtain an initial metal code disk, wherein the photolithographic processing specifically includes the steps of cleaning, drying, gluing, pre-baking, exposing, developing, gluing, etching and drying again on the metal material; wherein the cleaning is used to remove chemical residues, and the drying is used to remove residual moisture on the surface of the metal material to ensure that the glue layer can be evenly and stably attached to the surface of the metal material when gluing; According to the preset water flow rate and pressure, the initial metal code disk after the photolithography process is cleaned by using an automated cleaning device based on a neutral detergent and pure water, and after the initial metal code disk is dried, the initial metal code disk is blackened according to the preset time and preset temperature; Processing the initial metal code disc after blackening treatment with a precision machine tool, and inspecting its appearance under a microscope to obtain a metal code disc that does not require coating; The step of performing blackening treatment comprises: The initial metal code disc is immersed in a blackening agent, wherein the blackening agent is composed of the following raw materials in the following mass percentages: 12%-15% organic acid, 2%-5% zinc chloride, 5%-10% sodium sulfate and copper sulfate, 0.2%-0.8% sodium tartrate, 6% selenium dioxide, 12%-19% OP-10 and 0.1%-0.3% sodium oxalate; the mass ratio of sodium sulfate to copper sulfate is 2:1, which is used to enhance the adhesion and corrosion resistance of the oxide film and make the black oxide film more stable and durable; 6% selenium dioxide is used to accelerate the oxidation process of the metal surface and make the black oxide film more uniform and dense; sodium oxalate is used to stabilize the performance of the blackening agent to prevent the blackening agent from decomposing or deteriorating during use; The metal code disc is also provided with grooves or protrusions for increasing the contact area between the blackening agent and the metal surface, thereby improving the uniformity and consistency of the blackening treatment.

2. The method for preparing a metal code disc without coating according to claim 1, characterized in that: The preset time is 5-8 minutes, and the preset temperature is 22-28 degrees Celsius.

3. The method for preparing a metal code disc without coating according to claim 1, characterized in that: The step of polishing the edge of the metal material comprises: Selecting a corresponding polishing tool from a preset polishing tool library according to the characteristics of the metal material, the polishing tool comprising a first polishing tool and a second polishing tool, the characteristics comprising at least the type, hardness and surface roughness of the metal material; Preliminarily polishing the edge of the metal material based on the first polishing tool to remove impurities on the surface; The metal material is finely polished based on the second polishing tool, wherein the angle and pressure of the polishing tool are continuously adjusted to make the surface of the metal material reach a preset smoothness and glossiness.

4. The method for preparing a metal code disc without coating according to claim 3, characterized in that: After the step of finely polishing the metal material based on the second polishing tool, the method further includes: Acquiring surface data of the metal material, wherein the surface data at least includes scratches and dents; Identify the location, size and depth of scratches and depressions on the surface of the metal material; Analyze the surface data, and determine a repair plan for the scratches and dents based on the analysis results, the repair plan at least including the selection of repair tools, the control of repair strength and the setting of repair time; The scratches and dents on the surface of the metal material are repaired according to the repair scheme until the preset surface quality requirements are met.

5. The method for preparing a metal code disc without coating according to claim 1, characterized in that: The metal material after the polishing process is subjected to photolithography to obtain an initial metal code disk, wherein the photolithography process specifically includes the steps of cleaning, drying, gluing, pre-baking, exposing, developing, gluing, etching and drying again on the metal material, including: Cleaning the metal material and drying the metal material; Uniformly coating the photoresist on the metal material, wherein the photoresist and the metal material have corresponding properties; Pre-baking the metal material, projecting a preset pattern or text onto the photoresist, and exposing it based on a preset light source to form an anti-corrosion layer corresponding to the pattern or text; Baking the photoresist again to solidify the photoresist; The metal material not protected by the anti-corrosion layer is removed to form a desired code disc structure, and then the structure is dried again to obtain an initial metal code disc.

6. The method for preparing a metal code disc without coating according to claim 1, characterized in that: The step of cleaning the initial metal code disk after photolithography processing based on neutral detergent and pure water includes: Put the initial metal code disk after photolithography into a cleaning tank, add an appropriate amount of neutral detergent, and fully stir and soak it to ensure that the neutral detergent can fully penetrate into every corner of the surface of the initial metal code disk; The initial metal code disk is rinsed with pure water according to a preset water flow rate and pressure; The rinsed initial metal code disc is dried using a drying device.

7. The method for preparing a metal code disc without coating according to claim 1, characterized in that: The step of processing the initial metal code disc after blackening by precision machine tool comprises: According to the characteristics of the metal material, selecting a precision machine tool corresponding to the characteristics of the metal material from a preset machine tool library; According to the processing requirements of the initial metal code disc, a corresponding processing technology is formulated, wherein the processing requirements at least include film protection, precision cutting and degumming; According to the characteristics of the metal material and the processing requirements, the motion parameters of the precision machine tool are adjusted, and the motion parameters at least include cutting speed, feed speed and cutting depth, so that the precision machine tool performs processing according to the adjusted motion parameters.

8. The method for preparing a metal code disc without coating according to claim 1, characterized in that: The step of performing appearance inspection based on a microscope comprises: Observe the initial metal code disk processed by the precision machine tool under a microscope to obtain index data of the initial metal code disk, wherein the index data at least includes the surface quality, dimensional accuracy and edge state of the initial metal code disk; Determine whether the indicator data meets the preset qualification standard; If the index data meets the preset qualification standard, the initial metal code disk is determined to be a qualified metal code disk; If the index data does not meet the preset qualification standard, the initial metal code disc is subjected to precision machine tool processing again until the index data meets the preset qualification standard.

9. A metal code disc, characterized in that: The metal code disc is prepared by the method for preparing a metal code disc without coating as described in any one of claims 1 to 8.

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