Velvet gold surface fine wiredrawing and texture treatment process

Abstract

The invention relates to the technical field of velvet gold surface treatment, and discloses a velvet gold surface fine wiredrawing and texture treatment process which comprises the steps of blank bottom molding, ultrasonic cleaning, steam spraying, high-temperature acid pickling, potassium hydroxide deacidification cleaning and the like. And the wire drawing force and direction are accurately controlled. By means of the fine operation, it is ensured that all wire drawing lines are consistent and uniform, and the depth consistency and the glossiness of the metal surface are improved. By combining manual fine operation with automatic equipment, the technical scheme obviously improves the control precision and flexibility of the wire drawing process. The precision of manual operation and the stability of automatic equipment complement each other, so that the texture on the metal surface is more perfect and rich in artistic feeling. Compared with a full-automatic system, the combination mode can better meet the high-difficulty surface treatment requirement, the production efficiency is improved, and the quality of each detail is ensured.

Description

Technical Field

[0001] The invention relates to a velvet gold surface fine wire drawing and texture processing process and system, belonging to the technical field of velvet gold surface cutting processing. Background Art

[0002] Velvet gold surface treatment technology is widely used in the production of high-end decorative metal products, mainly through wire drawing, pickling, cleaning and other process steps to enhance the gloss, texture and durability of the metal surface. However, the existing velvet gold surface treatment process has some obvious disadvantages, resulting in low production efficiency, inconsistent surface effects, and even affecting the quality and appearance of the product.

[0003] In the existing technology, the wire drawing process mainly relies on automated equipment. Although automation can improve production efficiency, due to its fixed working mode, it is difficult to achieve precise control of each wire drawing texture, resulting in uneven depth and texture of the surface effect, which is difficult to meet the quality requirements of high-end decorations. In addition, the fully automated processing method has poor adaptability to materials, especially when processing special materials that require meticulous control, and often fails to achieve the desired effect.

[0004] In order to solve these problems, the industry usually adopts a combination of manual fine control and automation, that is, combining manual operation with low-speed automated equipment to improve the accuracy and flexibility of surface treatment. Although this method can make up for the limitations of automated equipment to a certain extent, in actual applications, due to the instability of manual operation and the speed limit of automated equipment, it is still impossible to fully achieve the ideal surface effect. In particular, when processing fine textures and special materials, the control of surface quality is still a great challenge.

[0005] In addition, in the process of improving the metal surface quality, the existing cleaning and pickling processes often cause residual oxides or corrosive substances on the metal surface due to improper temperature and time control during the operation, which affects the subsequent treatment effect and surface quality. Although some processes try to solve this problem through multiple cleaning and pickling, it is still difficult to ensure the consistency and stability of surface treatment while ensuring high efficiency.

[0006] Therefore, although the existing technology has solved the efficiency problem in surface treatment to a certain extent, there are still many technical bottlenecks in terms of processing accuracy, surface quality and process stability. Summary of the invention

[0007] The present invention provides a velvet gold surface fine wire drawing and texture treatment process, the main purpose of which is to solve the problem of ().

[0008] To achieve the above object, the present invention provides a velvet gold surface fine wire drawing and texture treatment process, characterized in that the process comprises the following steps: S1, after the velvet gold blank bottom passes through the mold, it is cleaned by an ultrasonic cleaning device at a temperature range of 60°C to 80°C for 5 to 10 minutes, and a wax remover is used to remove the surface wax layer and attached impurities during the cleaning process; then, a steam spray cleaning device is used to further clean the surface of the blank bottom at a temperature of 90°C to 120°C to remove residual impurities during the cleaning process; S2, high temperature pickling and deacidification cleaning: the bottom of the cleaned billet is subjected to high temperature pickling, wherein concentrated sulfuric acid is used for the high temperature pickling, the pickling temperature is 260°C to 300°C, and the pickling time is 1 to 3 seconds; then, the bottom of the pickled billet is immersed in a potassium hydroxide solution, the deacidification time is 1 to 5 minutes, and the solution temperature is 60°C to 100°C, to ensure that the acid solution is completely neutralized; finally, it is washed with clean water, the washing time is 3 to 5 minutes, and the clean water flow rate is 2L / min, to ensure that there is no acid residue on the surface; S3, wire drawing process preparation: fix the high-hardness tungsten steel needle on the crane, adjust the speed of the crane to the lowest gear, ensure the stability and accuracy of the wire drawing process; use a clamp to fix the velvet gold billet bottom to ensure the stability of the billet bottom during the wire drawing process; at the same time, adjust the feed rate of the wire drawing needle to make each wire drawing action uniform and stable; S4, fine wire drawing operation: During the fine wire drawing process, the operator holds the bottom of the velvet gold billet steady with his left hand to ensure that the billet bottom is stable during the wire drawing process, and uses his right hand to accurately control the speed and position of the crane to adjust the feed rate and direction of the tungsten steel needle to ensure the accuracy of the wire drawing; a high-hardness tungsten steel needle is used to pull vertically from above the billet bottom surface, and the wire drawing force is controlled between 30N and 50N; the pulling force of each wire is monitored in real time by a high-precision force sensor, and the monitored pulling force data is transmitted to the control system, which receives the pulling force data fed back by the sensor in real time and compares it with the preset standard; if the sensor detects a deviation in the wire drawing force, the control system will automatically adjust the speed of the crane or the feed rate of the tungsten steel needle according to the feedback pulling force data, and compensate for the fluctuation of the wire drawing force in time to ensure that the pulling force applied to each wire is consistent; and during the wire drawing process, the tungsten steel needle is assisted by a guide tool to slide evenly along the billet bottom surface to avoid local deviations and ensure that the depth of each wire is uniform; S5, post-processing and cleaning: After the wire drawing is completed, first use an ultrasonic cleaning device for cleaning, the cleaning temperature is 60°C to 80°C, the cleaning time is 10 minutes, and the cleaning agent concentration is 0.5%; then use a steam spray cleaning device for further cleaning, the temperature is 90°C to 120°C, and a high-temperature pickling treatment is performed, the temperature is 260°C to 300°C, and it lasts for 1 to 3 seconds, and then a potassium hydroxide solution is used for deacidification cleaning at a temperature of 60°C to 100°C for 1 to 5 minutes; finally, use clean water for cleaning, the water flow rate is 2L / min, and the cleaning time is 3 to 5 minutes to ensure that the metal surface is smooth, clean, and free of pollutants; S6, wire drawing effect inspection and adjustment: During and after the wire drawing process, visual inspection and combined with microscopes, depth gauges, gloss meters and other tools are used to ensure that the texture depth and color of each wire are consistent; use a microscope to detect the depth and uniformity of the texture, a depth gauge to confirm the consistency of the drawing depth, and a gloss meter to measure the surface gloss to ensure that the surface effect meets the standards.

[0009] Preferably, the ultrasonic cleaning device uses ultrasonic waves with a frequency of 20 kHz to 40 kHz to ensure that surface impurities are fully removed.

[0010] Preferably, during the pickling, the concentration of concentrated sulfuric acid used is above 98% to ensure the removal of oxides on the metal surface.

[0011] Preferably, the clean water washing step uses a water flow with a constant flow rate of 2 L / min, and uses a temperature control system to maintain the water temperature between 20°C and 30°C.

[0012] Preferably, during the wire drawing process, the feed rate of the tungsten steel needle is 0.5 to 2 mm / s to ensure the uniformity of the wire drawing effect.

[0013] Preferably, the force sensor has an accuracy of ±0.1N, and is used to accurately monitor changes in the wire drawing force and automatically adjust the wire drawing speed.

[0014] Preferably, the guiding tool is a guiding rail, a guiding groove or a guiding fixture, and the tungsten steel needle and the guiding tool are fixed together by means of an insert connection, thereby ensuring that the tungsten steel needle slides evenly along the bottom surface of the blank during the wire drawing process.

[0015] Preferably, the wire drawing effect inspection is carried out by means of a microscope, a depth meter and a gloss meter, wherein the magnification of the microscope is 500 times to ensure the fineness of the texture.

[0016] Preferably, the pickling step is performed for 1 to 3 seconds to ensure thorough removal of surface oxides and avoid excessive corrosion.

[0017] Preferably, during the cleaning process, the clean water used has a pH value of 7 to avoid adverse effects on the metal surface.

[0018] Compared with the problems described in the background technology, the beneficial effects of the present invention are: 1. By combining manual precision operation with automated equipment, this technical solution significantly improves the control accuracy and flexibility of the wire drawing process. The precision of manual operation and the stability of automated equipment complement each other, making the texture of the metal surface more perfect and artistic. Compared with a fully automated system, this combination can better cope with difficult surface treatment requirements, not only improving production efficiency, but also ensuring the quality of every detail.

[0019] 2. By putting forward precise requirements for the operation of tungsten steel needles and controlling the drawing force and direction, we ensure that each drawing texture can maintain consistency and gloss. Especially for the special material of velvet gold, the fine tungsten steel needle operation method can achieve high uniformity of surface texture, making the depth, color and shape perfectly unified, greatly enhancing the overall beauty of velvet gold. This precise control technology makes each drawing effect fit closely, which not only improves the surface quality, but also gives the metal surface more artistry and decorativeness. While realizing automation, it helps to partially retain traditional processes that are conducive to improving quality.

[0020] 3. The synergistic effect of multiple cleaning and pickling steps ensures the perfect uniformity of the surface treatment effect: Combining fine cleaning and pickling steps, especially by precisely controlling the ultrasonic cleaning, pickling time and temperature range, this solution effectively avoids the risk of surface corrosion or oxide residue. The precise adjustment of each link enables the metal surface to be fully cleaned and finely treated, which not only improves the metal's corrosion resistance, but also optimizes the adaptability of subsequent processing. Through this technical combination, the metal surface achieves an extremely high degree of finish, and the depth and consistency of the surface treatment effect are greatly improved.

[0021] 4. By precisely controlling the water flow and temperature during the cleaning process, this technical solution ensures that every step of the metal surface treatment is in the best condition. It avoids surface quality fluctuations caused by temperature differences and water flow fluctuations, and effectively improves the efficiency and stability of cleaning. The refined water quality control method of this solution ensures the quality consistency of the metal surface after cleaning, further reduces subsequent processing problems caused by surface contamination or water quality fluctuations, and improves the overall efficiency of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a process flow chart of the present invention.

[0023] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0024] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0025] The present application provides a velvet gold surface fine brushing and texture treatment process. The process includes the following steps: S1, after the velvet gold blank bottom passes through the mold, it is cleaned by an ultrasonic cleaning device at a temperature range of 60°C to 80°C for 5 to 10 minutes, and a wax remover is used to remove the surface wax layer and attached impurities during the cleaning process; then, a steam spray cleaning device is used to further clean the surface of the blank bottom at a temperature of 90°C to 120°C to remove residual impurities during the cleaning process; S2, high temperature pickling and deacidification cleaning: the bottom of the cleaned billet is subjected to high temperature pickling, wherein concentrated sulfuric acid is used for the high temperature pickling, the pickling temperature is 260°C to 300°C, and the pickling time is 1 to 3 seconds; then, the bottom of the pickled billet is immersed in a potassium hydroxide solution, the deacidification time is 1 to 5 minutes, and the solution temperature is 60°C to 100°C, to ensure that the acid solution is completely neutralized; finally, it is washed with clean water, the washing time is 3 to 5 minutes, and the clean water flow rate is 2L / min, to ensure that there is no acid residue on the surface; S3, wire drawing process preparation: fix the high-hardness tungsten steel needle on the crane, adjust the speed of the crane to the lowest gear, ensure the stability and accuracy of the wire drawing process; use a clamp to fix the velvet gold billet bottom to ensure the stability of the billet bottom during the wire drawing process; at the same time, adjust the feed rate of the wire drawing needle to make each wire drawing action uniform and stable; S4, fine wire drawing operation: During the fine wire drawing process, the operator holds the bottom of the velvet gold billet steady with his left hand to ensure that the billet bottom is stable during the wire drawing process, and uses his right hand to accurately control the speed and position of the crane to adjust the feed rate and direction of the tungsten steel needle to ensure the accuracy of the wire drawing; a high-hardness tungsten steel needle is used to pull vertically from above the billet bottom surface, and the wire drawing force is controlled between 30N and 50N; the pulling force of each wire is monitored in real time by a high-precision force sensor, and the monitored pulling force data is transmitted to the control system, which receives the pulling force data fed back by the sensor in real time and compares it with the preset standard; if the sensor detects a deviation in the wire drawing force, the control system will automatically adjust the speed of the crane or the feed rate of the tungsten steel needle according to the feedback pulling force data, and compensate for the fluctuation of the wire drawing force in time to ensure that the pulling force applied to each wire is consistent; and during the wire drawing process, the tungsten steel needle is assisted by a guide tool to slide evenly along the billet bottom surface to avoid local deviations and ensure that the depth of each wire is uniform; And during the wire drawing process, the sensor monitors the wire drawing force applied to the bottom of the velvet gold billet in real time, and transmits the measurement results to the control system through a standard signal interface. This control system is designed according to the basic automation control principle familiar to ordinary technicians in the field, and can receive the real-time tension data fed back by the sensor and compare it with the preset standard. When the tension data fed back by the sensor exceeds the preset allowable range, the control system will automatically perform an adjustment action. By changing the speed of the crane or the feed rate of the tungsten steel needle, the system compensates the wire drawing force in real time. Specifically, when the feedback tension is low, the system will increase the speed of the crane or increase the feed rate; when the feedback tension is high, the system will reduce the speed or slow down the feed rate. These adjustment methods and operating methods are familiar to ordinary technicians in the field, and can ensure that the tension in the wire drawing process is always kept within the target range. And in order to reduce unnecessary frequent adjustments, the control system is provided with a tolerance interval. Only when the tension deviation detected by the sensor exceeds this tolerance interval will the system start the compensation action. This tolerance control method is a standard design method for those skilled in the art, which can ensure that unnecessary interference is avoided while ensuring tension consistency. The tension data during the whole process will be continuously monitored by the sensor and input into the control system, forming a closed-loop feedback mechanism. Based on this mechanism, the control system will adjust the crane operation in real time to ensure the consistency of the wire drawing force on each wire. This control method is widely used in conventional automation systems in this field, is simple to operate and easy to implement, and is an extended implementation method known to ordinary technicians in this field.

[0026] S5, post-processing and cleaning: After the wire drawing is completed, first use an ultrasonic cleaning device for cleaning, the cleaning temperature is 60°C to 80°C, the cleaning time is 10 minutes, and the cleaning agent concentration is 0.5%; then use a steam spray cleaning device for further cleaning, the temperature is 90°C to 120°C, and a high-temperature pickling treatment is performed, the temperature is 260°C to 300°C, and it lasts for 1 to 3 seconds, and then a potassium hydroxide solution is used for deacidification cleaning at a temperature of 60°C to 100°C for 1 to 5 minutes; finally, use clean water for cleaning, the water flow rate is 2L / min, and the cleaning time is 3 to 5 minutes to ensure that the metal surface is smooth, clean, and free of pollutants; S6, wire drawing effect inspection and adjustment: During and after the wire drawing process, visual inspection and combined with microscopes, depth gauges, gloss meters and other tools are used to ensure that the texture depth and color of each wire are consistent; use a microscope to detect the depth and uniformity of the texture, a depth gauge to confirm the consistency of the drawing depth, and a gloss meter to measure the surface gloss to ensure that the surface effect meets the standards.

[0027] The ultrasonic cleaning device uses ultrasonic waves with a frequency of 20kHz to 40kHz to ensure that surface impurities are fully removed; during pickling, the concentration of concentrated sulfuric acid used is above 98% to ensure the removal of oxides on the metal surface; the clean water cleaning step uses a constant flow of 2L / min, and a temperature control system is used to maintain the water temperature between 20°C and 30°C; during the wire drawing process, the feed rate of the tungsten steel needle is 0.5 to 2mm / s to ensure the uniformity of the wire drawing effect; the accuracy of the force sensor is ±0.1N, which is used to accurately monitor the changes in the wire drawing force and Automatically adjust the wire drawing speed; the guide tool is a guide rail, guide groove or guide clamp, and the tungsten steel needle and the guide tool are fixed together by plug-in connection to ensure that the tungsten steel needle slides evenly along the bottom surface of the blank during the wire drawing process; the wire drawing effect is inspected by a microscope, depth gauge and gloss meter, where the magnification of the microscope is 500 times to ensure the fineness of the texture; the pickling step takes 1 to 3 seconds to ensure the complete removal of surface oxides and avoid excessive corrosion; during the cleaning process, the clean water used has a pH value of 7 to avoid adverse effects on the metal surface.

[0028] Embodiment 1: This embodiment describes a tungsten steel needle wire drawing process that combines manual operation and automated control, which is used in the production process of high-end decorative products. Assume that the product produced is a high-quality velvet gold decoration, and its surface is required to be fine and artistic. In order to ensure the consistency of the depth, color and shape of each wire drawing texture, a combined operation method of a low-speed crane and a tungsten steel needle is adopted. This method controls the approximate wire drawing direction and strength through automated equipment, and finely adjusts the direction and speed by manual operation to ensure that the effect of each wire accurately meets the product requirements.

[0029] In the specific operation process, the metal surface is firstly cleaned by ultrasonic cleaning and steam spraying to remove surface impurities to ensure that the subsequent processes can proceed smoothly. Then, the oxide layer on the metal surface is removed through the pickling step. At this time, the wire drawing step is started, the crane equipment starts to automatically pull the metal surface, and the tungsten steel needle is manually operated by the worker to accurately control the details of each wire to achieve the desired texture effect.

[0030] This process combines automated equipment with manual operation, which not only ensures production efficiency, but also ensures the high consistency of each brushed texture through manual fine control, so that the product surface presents a perfect velvet gold effect. This method is more flexible and accurate than the traditional method that relies entirely on manual operation, and compared with the fully automated process, it can handle more complex and delicate texture requirements, thereby improving production efficiency while also improving product quality.

[0031] In addition, the technical solution's precise control of the operating force and direction of the tungsten steel needle makes the gloss and shape of each texture uniform, achieving an effect that cannot be achieved with traditional processes. Finally, after multiple rounds of cleaning and pickling steps, the product surface presents a unique artistic sense, with uniform surface gloss and distinct texture layers, showing a very high decorative value, making it possible to combine the tungsten steel needle with automated equipment, solving the technical problem that the fully automated system in the existing technology cannot achieve fine textures, and significantly improving the stability and aesthetics of the surface effect, which is particularly suitable for the surface treatment of high-end metal products with high decorative requirements.

[0032] Embodiment 2: This embodiment demonstrates the actual application scenario in the high-precision surface treatment process, specifically for the control of the surface texture of metal decorations. In order to improve the precision and consistency of the decorative metal surface, this embodiment adopts a combination of manual operation and automated control. In actual application, this process is operated in combination with a low-speed crane device and a tungsten steel needle. The automated equipment is mainly responsible for controlling the overall drawing direction and strength, while manual operation is refined through precise adjustment to ensure that the depth, gloss and shape of each drawing texture are consistent.

[0033] Experimental data show that the surface quality of wire drawing is significantly improved after using this process. Compared with the traditional fully automated wire drawing method, the surface glossiness is improved by 12% and the texture uniformity is improved by 15%. This improvement not only makes the surface treatment more refined, but also avoids the problem of uneven texture that occurs in traditional fully automated systems.

[0034] In this embodiment, the automated equipment first performs preliminary wire drawing on the metal surface, and then performs delicate operations through tungsten steel needles. Especially for complex surface texture requirements, manual fine operations ensure that the effect of each wire drawing reaches the ideal standard. The change of wire drawing texture is no longer simply automatically generated, but dynamically adjusted by the operator according to actual needs. This high-precision control not only maintains an efficient production rate on the surface, but also achieves a better use effect in terms of artistry.

[0035] Through this technical solution, the surface treatment of metal decorations has reached a higher quality standard, and the production efficiency has increased by 20% compared with the traditional method. This method does not rely solely on the control of fully automatic equipment, but combines manual fine operation to make each brushed texture more refined and consistent, which provides a more unique artistic expression for high-end customized products in the market and meets the demand for high-quality decorative effects.

[0036] Embodiment 3: This embodiment will provide an optimized velvet gold surface fine drawing and texture treatment process. This embodiment specifically optimizes the force control, temperature control and cleaning steps in the drawing process, and explains its specific technical details.

[0037] In this embodiment, the wire drawing process continues to use the combination of a low-speed hoist and a high-hardness tungsten steel needle, but by further optimizing its control system, accurate control of the wire drawing force and wire drawing speed is ensured. During the wire drawing process, the wire drawing force is first monitored in real time by a high-precision force sensor (control accuracy ±0.1N), and the sensor transmits the wire drawing force data to the automatic adjustment system in real time to ensure the depth consistency of each wire during the wire drawing process.

[0038] Specifically, during the wire drawing process, the operator makes preliminary settings by controlling the rotation speed of the low-speed crane and the feed rate of the wire drawing needle. For example, the system automatically adjusts the wire drawing force and speed according to real-time feedback to ensure that the depth of each texture is consistent. The feedback mechanism of the automatic adjustment system can adjust the power parameters in real time according to the subtle differences in the actual wire drawing process, avoiding the instability caused by manual operation in traditional processes. They are all extended implementation methods known to ordinary technicians in this field, and in order to further ensure the uniformity and consistency of the texture, this embodiment introduces a high-strength alloy guide tool in the operation. The tool accurately guides the tungsten steel needle to slide evenly along the metal surface to ensure that each wire drawing can achieve the expected effect. The guide tool works in conjunction with the force sensor to form a closed-loop feedback control system, which realizes high-precision control of each wire drawing line throughout the process; at the beginning of the wire drawing operation, the tungsten steel needle feed rate is set to 0.5 to 2 mm / s, and the wire drawing force is controlled between 30N and 50N. During the operation, the sensor continuously detects the drawing force. Once a force deviation is found, the system automatically adjusts the crane speed and the tungsten steel needle feed rate to ensure consistent depth and no texture deviation during the drawing process.

[0039] Pickling and cleaning steps are key steps to ensure the quality of metal surface. This embodiment optimizes the control accuracy of the pickling process, and ensures that the oxides on the metal surface are completely removed without causing surface corrosion by accurately controlling the temperature of concentrated sulfuric acid (260°C to 300°C) and the pickling time (1 to 3 seconds).

[0040] After pickling, the bottom of the metal billet needs to be deacidified with potassium hydroxide solution. During deacidification, the solution temperature is set at 60°C to 100°C to ensure that the acid is completely neutralized and prevent the residual acid from affecting the surface quality. The deacidification time at this time is 1 to 5 minutes, which is adjusted according to the degree of pickling on the metal surface. The whole process uses high-efficiency sensors to detect the liquid temperature and chemical reaction in real time, avoiding inaccurate temperature control and excessive chemical reaction, and ensuring the ideal state of the metal surface.

[0041] In addition, in the clean water cleaning process, this embodiment further optimizes the precise control of water flow and temperature. The clean water flow is controlled to be a constant 2L / min, and the temperature is set to 20°C to 30°C. The temperature control system is used to ensure that the temperature of the cleaning liquid remains constant, avoiding the problem of inconsistent surface treatment caused by fluctuations in water flow or water temperature.

[0042] Through the optimization process of this embodiment, after verification by experimental data, the surface quality is significantly improved compared with the traditional process. After wire drawing, the consistency of the depth of the surface texture reaches more than 95%, the glossiness of the wire drawing pattern is improved by 12%, and the texture uniformity is improved by 15%. Especially in terms of fine control of the texture, the surface effect shows a high degree of consistency and beauty, which fully meets the needs of high-end decorative products.

[0043] In the specific experiment, through visual inspection and microscopic observation, it was found that the optimized wire drawing process made the metal surface texture more refined, with consistent depth, and the consistency between different product batches was greatly improved. When the surface gloss was tested with a gloss meter, the test results showed that compared with the traditional fully automated wire drawing process, the surface gloss was improved by more than 10%, which is significantly better than similar products on the market.

[0044] Embodiment 4: This embodiment provides an optimized velvet gold surface fine drawing and texture treatment process. Its goal is to further improve the texture uniformity, glossiness and corrosion resistance of the metal surface, and ensure that the process can be accurately and efficiently implemented in the production of high-end decorative products. The specific optimization includes fine control of the drawing process, pickling and cleaning steps, and precise adjustment of parameters such as drawing force, drawing direction, temperature and time to ensure that the effect of each link meets the technical requirements.

[0045] The wire drawing process is an important step to ensure the fineness and uniformity of the metal surface texture. This embodiment introduces the following optimization measures in the wire drawing process: Precise control of wire drawing force: A high-precision force sensor is used to monitor the wire drawing force in real time, with a control accuracy of ±0.1N. The sensor transmits the force value to the control system in real time, and automatically adjusts the wire drawing force according to the feedback information to ensure that the depth of each wire drawing texture is consistent. The control range of wire drawing force is 30N to 50N. Through this precise adjustment, the force fluctuation that may occur during the wire drawing process can be avoided, ensuring the uniform depth of the metal surface texture.

[0046] Adjustment of feed rate and drawing direction: During crane operation, the feed rate is set to 0.5 to 2 mm / s to ensure the smoothness of the drawing action. At the same time, the manual operation part accurately adjusts the feed rate and direction of the drawing needle, combined with the automatic control system, to ensure that the direction of each texture is consistent. Each drawing action will be automatically corrected by the monitoring system to minimize human operation errors.

[0047] Use of high-strength alloy guide tool: To further ensure that the wire drawing needle slides evenly along the bottom surface of the blank, this embodiment uses a guide tool made of high-strength alloy material. This tool can effectively avoid the deviation of the tungsten steel needle during the wire drawing process and ensure the stability and consistency of the wire drawing texture.

[0048] Fine control of pickling: In order to ensure that the metal surface can remove oxides without excessive corrosion, the pickling temperature in this embodiment is precisely controlled between 260°C and 300°C, the pickling time is controlled between 1 and 3 seconds, and the acid concentration is above 98%. After the pickling is completed, potassium hydroxide solution is used for deacidification to ensure that the acid is completely neutralized to prevent residual acid from having a negative impact on the surface quality.

[0049] Precise control of cleaning water flow and temperature: During the clean water cleaning stage, a constant flow of 2L / min is used, and the water temperature is maintained between 20°C and 30°C. The temperature control system ensures that the cleaning water temperature is constant to avoid the impact of temperature fluctuations on surface quality. At the same time, the cleaning time is set within 3 to 5 minutes to ensure that each cleaning can achieve consistent results.

[0050] To ensure that each variable in the process flow can support the logic of the technical solution and achieve the expected technical effect, this embodiment describes in detail the relationship between key parameters and technical effects: Drawing force (F): Drawing force is a key parameter that affects the consistency of the depth of the drawing texture. The force sensor monitors in real time and adjusts the drawing speed based on the feedback to make the depth of each texture consistent. The control range of the drawing force is 30N to 50N, and the control accuracy is ±0.1N.

[0051] Feed rate (V): The feed rate controls the smoothness of the action during the drawing process to avoid sudden changes. The uniformity of each drawing action is ensured by adjusting the crane speed and the wire drawing needle feed rate (0.5 to 2 mm / s).

[0052] The pickling temperature ranges from 260°C to 300°C and the time is 1 to 3 seconds, ensuring that the oxides on the metal surface can be removed without causing excessive corrosion; during the cleaning process, the clean water temperature is controlled between 20°C and 30°C to ensure that uneven surface quality due to temperature differences is avoided during the cleaning process; through fine control of these key parameters, the execution effect of each process step is guaranteed and the metal surface quality meets the expected standards.

[0053] The experimental data and technical effects are as follows: after experimental verification of the optimized process, the surface quality of this embodiment is significantly better than that of the traditional process. The experimental data show that the consistency of texture depth: after precise control, the consistency of the brushed texture depth reaches more than 95%, which is 15% higher than the traditional method; the glossiness is improved: the optimized brushing process improves the glossiness of the metal surface by 12%, which is significantly better than similar products on the market; the texture uniformity is improved: the texture uniformity is improved by 15%, which can effectively avoid the common texture unevenness problem in traditional processes.

[0054] Embodiment 5: This embodiment optimizes the key technical points in the fine wire drawing and texture treatment process of velvet gold surface, aiming to further improve the uniformity and stability of the surface texture, for example: At the initial stage of the process, the velvet gold bottom is first molded through a mold and then cleaned using an ultrasonic cleaning device. The operating frequency of the ultrasonic cleaning device is 30kHz, ensuring that the wax layer and impurities on the surface of the bottom of the blank can be effectively removed. The cleaning temperature is set at 65°C to 75°C, and the duration is 7 minutes. A dewaxing agent is used during the cleaning process to ensure the removal of attached impurities. Next, the bottom of the blank is further cleaned using a steam spray cleaning device, with the temperature controlled at 100°C to 110°C for 5 minutes to remove impurities remaining in the ultrasonic cleaning.

[0055] The bottom of the billet after cleaning is pickled. The pickling step uses concentrated sulfuric acid (98%), the pickling temperature is controlled at 270°C to 290°C, and the duration is strictly controlled within 2 seconds to ensure that the surface oxides are completely removed and no surface corrosion is caused. After pickling, the bottom of the billet needs to be immediately immersed in a potassium hydroxide solution for deacidification at a temperature of 70°C to 90°C for 2 minutes. This process can completely neutralize the acid and prevent acid residues from affecting subsequent processes. Finally, use clean water with a flow rate of 2L / min and a temperature between 25°C and 30°C for cleaning. The cleaning time is 4 minutes to ensure that the acid and impurities are completely removed.

[0056] Before drawing, the high-hardness tungsten steel needle is first fixed on a low-speed hoist, and the speed of the hoist is set at the lowest gear to ensure the smoothness of the wire drawing process. Subsequently, the velvet gold blank bottom is fixed with a precision fixture to ensure that the blank bottom remains stable during the wire drawing process. At this time, the worker manually adjusts the speed of the hoist and the feed rate of the tungsten steel needle to ensure the uniformity and accuracy of the wire drawing process. Depending on the texture depth required for wire drawing, the feed rate of the tungsten steel needle is adjusted between 0.8mm / s and 1.5mm / s.

[0057] During the fine wire drawing stage, the operator holds the bottom of the billet steady with his left hand and controls the crane with his right hand, and the tungsten steel needle is pulled vertically from the bottom surface of the billet. During each wire drawing process, the applied drawing force is strictly controlled between 35N and 45N, and is monitored in real time by a force sensor to ensure that the depth of each texture is consistent. The sensor has an accuracy of ±0.1N, which can accurately monitor the force value changes during the wire drawing process, and automatically adjust the crane speed and the feed rate of the tungsten steel needle according to the feedback to maintain the consistency of the texture. During the wire drawing process, guide tools (such as guide slides) are also used to assist in guiding the tungsten steel needle to slide evenly along the bottom surface of the billet to ensure that the wire drawing texture is uniform and consistent.

[0058] After the wire drawing is completed, the surface is first cleaned again using an ultrasonic cleaning device, with a cleaning temperature of 65°C to 75°C, a cleaning time of 10 minutes, and a cleaning agent concentration of 0.5%. This process further removes residual impurities and surface contamination. Subsequently, a steam spray cleaning device is used for high-temperature cleaning, with the temperature set at 100°C to 110°C and a duration of 5 minutes to ensure that no contaminants remain on the surface. In the subsequent pickling step, the bottom surface of the billet is pickled with high-concentration sulfuric acid (98%), and the time is strictly controlled to 2 seconds to prevent excessive corrosion. Finally, a potassium hydroxide solution (temperature set at 70°C to 90°C) is used for deacidification, and the deacidification time is 3 minutes to ensure that the acid is completely neutralized.

[0059] After the wire drawing is completed, the surface quality is inspected using tools such as microscopes, depth gauges and gloss meters. The microscope has a magnification of 500 times to confirm the depth and uniformity of the texture; the depth gauge is used to check the depth consistency of the wire drawing; the gloss meter measures the surface gloss to ensure that the surface effect meets the predetermined standards. If the texture depth is inconsistent or the gloss does not meet the standard, the crane speed, feed rate and wire drawing force during the wire drawing process are immediately adjusted to ensure that the depth and gloss of each texture are consistent.

[0060] Embodiment 6: In the ultrasonic cleaning step, an ultrasonic frequency range of 20kHz to 40kHz, a temperature range of 60°C to 80°C, and a cleaning time of 5 to 10 minutes are selected. The selection of ultrasonic frequency is within the range of 20kHz to 40kHz, which can effectively remove surface impurities without damaging the metal surface. Lower frequency ultrasonic waves have longer wavelengths and can produce larger vibration amplitudes, which are suitable for removing larger impurities and dirt attached to the surface, while higher frequency ultrasonic waves can better remove fine stains and surface residues, so selecting a suitable frequency within this range can ensure a balance between cleaning efficiency and effect. The cleaning temperature is set between 60°C and 80°C because the cleaning effect of ultrasonic cleaning in this temperature range is the best, which can improve cleaning efficiency without damaging the metal surface. The cleaning time is set to 5 to 10 minutes, which can ensure that the dirt on the metal surface is completely removed, while avoiding the negative impact of too long ultrasonic irradiation on the metal surface.

[0061] In the pickling step, a temperature of 260°C to 300°C, a pickling time of 1 to 3 seconds, and a concentrated sulfuric acid concentration of more than 98% are selected. The pickling temperature is within the range of 260°C to 300°C, which can accelerate the dissolution and removal of oxides, while avoiding corrosion of the metal surface caused by excessively high temperatures. If the temperature is too low, the pickling effect is poor, and the oxides are difficult to remove, which affects the effect of subsequent processes. Therefore, this temperature range is the optimal temperature optimized after multiple experimental verifications. The pickling time is 1 to 3 seconds, and the control time is within this range to ensure that the surface oxides are completely removed while avoiding excessive corrosion. Pickling for too long may cause unnecessary corrosion on the metal surface, affecting the effect of subsequent wire drawing processes. The concentrated sulfuric acid concentration is more than 98%, which can ensure a strong deoxidation effect during the pickling process. The higher concentration of sulfuric acid can dissolve the oxide layer on the metal surface more quickly, avoid the surface being left by oxides, and affect the metallic luster and texture treatment.

[0062] In the wire drawing process, the combination of manual operation and automated equipment, especially the adjustment of the crane speed and the tungsten steel needle feed rate, ensures the consistency of texture depth, shape and gloss during the wire drawing process.

[0063] And in the specific operation of the wire drawing step, such as the crane adjustment during the wire drawing process: the operator first starts the automation equipment and sets the basic wire drawing direction and preliminary wire drawing speed of the crane. The speed of the crane is adjusted between 0.2rpm and 0.5rpm, and the specific speed selection depends on the required texture details. When the crane speed is slow, it can provide a more refined wire drawing effect, which is suitable for the generation of delicate textures; when the crane speed is fast, it is suitable for a rougher or larger wire drawing effect.

[0064] Feed rate adjustment: The feed rate is controlled between 0.5mm / s and 2mm / s. The operator controls the depth of each drawing by adjusting the feed rate according to the surface texture requirements. If a deeper drawing texture is required, the operator will lower the feed rate to 0.5mm / s to ensure that each drawing produces a deeper texture effect. On the contrary, if a lighter texture effect is required, the feed rate is increased to 2mm / s to reduce the impact of each drawing on the surface, making the texture more uniform and delicate.

[0065] Manual operation to adjust the drawing direction and strength: Due to the particularity of velvet gold materials, the direction and strength of the drawing texture must be fine-tuned according to the actual situation. The operator manually adjusts the position, angle and force of the tungsten steel needle to control the direction and depth of each drawing texture. The operator's left hand stabilizes the bottom of the blank to ensure the stability of the bottom of the blank during the drawing process, while the right hand operates the crane and tungsten steel needle.

[0066] Wire drawing direction: The operator manually adjusts the angle of the tungsten steel needle according to the shape and texture requirements of the metal surface. If a more uniform texture is required, the operator keeps the tungsten steel needle perpendicular to the surface; if a certain directional texture is desired, the operator appropriately adjusts the inclination angle of the tungsten steel needle, and by fine-tuning the angle, the wire drawing texture is arranged in a specific direction.

[0067] Drawing force: The operator controls the depth of the texture by manually controlling the speed of the crane and the drawing force applied. By increasing or decreasing the pressure of the tungsten needle, the operator can ensure that the texture depth of each drawn wire is consistent. When a deeper texture is required, the operator will slightly increase the force applied by the tungsten needle, and the drawing force range is controlled between 35N and 50N. If a lighter texture is required, the force is reduced to ensure the smoothness of the metal surface.

[0068] Adjustment feedback: Feedback during the wire drawing process is very important. The operator judges the texture effect by sight and touch after each wire drawing. If the texture depth is inconsistent or the wire drawing effect is not as expected, the operator will immediately adjust the crane speed, feed rate and force, fine-tuning every detail of the wire drawing process to ensure the uniformity and consistency of the texture.

[0069] Auxiliary tools for fine adjustment: In order to assist in manually adjusting the drawing direction and force, the operator also uses guide tools (such as guide rails or guide fixtures) to ensure that the tungsten steel needle maintains a consistent trajectory during the drawing process and avoids deviation or deformation. The guide tool makes the force and direction adjustment during the drawing process more precise, thereby ensuring a high degree of consistency in the depth, gloss and shape of each texture.

[0070] After the wire drawing is completed, the surface is first cleaned again using an ultrasonic cleaning device, with a cleaning temperature of 65°C to 75°C, a cleaning time of 10 minutes, and a cleaning agent concentration of 0.5%. This process further removes residual impurities and surface contamination. Subsequently, a steam spray cleaning device is used for high-temperature cleaning, with the temperature set at 100°C to 110°C and a duration of 5 minutes to ensure that no contaminants remain on the surface. In the subsequent pickling step, the bottom surface of the billet is pickled with high-concentration sulfuric acid (98%), and the time is strictly controlled to 2 seconds to prevent excessive corrosion. Finally, a potassium hydroxide solution (temperature set at 70°C to 90°C) is used for deacidification, and the deacidification time is 3 minutes to ensure that the acid is completely neutralized.

[0071] After the wire drawing is completed, the surface quality is inspected using tools such as microscopes, depth gauges and gloss meters. The microscope has a magnification of 500 times to confirm the depth and uniformity of the texture; the depth gauge is used to check the depth consistency of the wire drawing; the gloss meter measures the surface gloss to ensure that the surface effect meets the predetermined standards. If the texture depth is inconsistent or the gloss does not meet the standard, the crane speed, feed rate and wire drawing force during the wire drawing process are immediately adjusted to ensure that the depth and gloss of each texture are consistent.

[0072] Embodiment 7: After the velvet gold bottom passes through the mold, it is cleaned with an ultrasonic cleaning device. The ultrasonic frequency is set to 30kHz, the cleaning temperature range is 65°C to 75°C, and the cleaning time is controlled to 7 minutes. During the cleaning process, a dewaxing agent is used to remove the surface wax layer and attached impurities to ensure that the surface is clean and free of residue. Then, the surface of the bottom of the billet is further cleaned with a steam spraying device at a temperature of 90°C to 110°C to remove impurities that may remain during the cleaning process; the bottom of the billet after cleaning is subjected to high-temperature pickling, using a concentrated sulfuric acid concentration of 98%, the pickling temperature is set between 270°C and 290°C, and the pickling time is strictly controlled within 2 seconds. This control ensures the complete removal of oxides without causing excessive corrosion. After pickling, the bottom of the billet is immersed in a potassium hydroxide solution, the solution temperature is set at 70°C to 90°C, and the deacidification time is 2 to 3 minutes to ensure that the acid is thoroughly neutralized. Finally, rinse with clean water (temperature 20°C to 30°C), with a flow rate of 2L / min and a cleaning time of 3 to 5 minutes to ensure that there is no acid residue Before the wire drawing operation, the high-hardness tungsten steel needle is first fixed on the low-speed crane, and the crane speed is set to the lowest gear to ensure the stability of the wire drawing process. The feed rate of the tungsten steel needle is adjusted from 0.8mm / s to 1.5mm / s, which is set according to the required texture effect. The velvet gold billet bottom is stably fixed by a clamp to avoid vibration or position deviation during the wire drawing process. The operator manually controls the speed of the crane and the position of the tungsten steel needle to adjust the feed rate to ensure that the wire drawing texture is uniform and the depth is consistent; in the fine wire drawing stage, the operator controls the depth and gloss consistency of each wire drawing texture through visual inspection and real-time feedback from the force sensor. The wire drawing force is controlled between 35N and 45N to ensure the stability of the texture depth. The force sensor has an accuracy of ±0.1N, which can accurately monitor the changes in force during the wire drawing process, and automatically adjust the crane speed and the feed rate of the tungsten steel needle according to the feedback to ensure the consistency of the depth of each texture. Guide tools (such as guide rails or guide fixtures) are used to guide the tungsten steel needle to slide evenly along the bottom surface of the blank to avoid deviation during the wire drawing process.

[0073] After the wire drawing is completed, the surface is first cleaned again using an ultrasonic cleaning device, with the temperature controlled at 65°C to 75°C, the cleaning agent concentration at 0.5%, and the cleaning time at 10 minutes to remove impurities that may remain on the surface. Then, the surface is cleaned at high temperature using a steam spray cleaning device, with the temperature controlled at 100°C to 110°C and the time set to 5 minutes to ensure that there are no contaminants remaining on the surface. The pickling step uses 98% concentrated sulfuric acid, and the time is strictly controlled at 2 seconds to avoid excessive corrosion. Finally, the potassium hydroxide solution is used for deacidification cleaning, with the temperature controlled at 70°C to 90°C and the deacidification time at 3 minutes to ensure that the acid is completely neutralized; after the wire drawing is completed, the operator checks the surface texture through a microscope (magnification 500 times), a depth gauge, and a gloss meter. The microscope is used to detect the depth and uniformity of the texture, the depth gauge ensures the depth consistency of the texture, and the gloss meter measures the surface gloss to ensure that the surface effect meets the predetermined standards. If the texture depth is inconsistent or the glossiness does not meet the standard, the operator can fine-tune each texture by adjusting the crane speed, feed rate and drawing force to ensure the consistency and high quality of the final effect.

[0074] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A velvet gold surface fine drawing and texture treatment process, characterized in that: The process comprises the following steps: S1, after the velvet gold blank bottom passes through the mold, it is cleaned by an ultrasonic cleaning device at a temperature range of 60°C to 80°C for 5 to 10 minutes, and a wax remover is used to remove the surface wax layer and attached impurities during the cleaning process; then, a steam spray cleaning device is used to further clean the surface of the blank bottom at a temperature of 90°C to 120°C to remove residual impurities during the cleaning process; S2, high temperature pickling and deacidification cleaning: the bottom of the cleaned billet is subjected to high temperature pickling, wherein concentrated sulfuric acid is used for the high temperature pickling, the pickling temperature is 260°C to 300°C, and the pickling time is 1 to 3 seconds; then, the bottom of the billet after pickling is immersed in a potassium hydroxide solution, the deacidification time is 1 to 5 minutes, and the solution temperature is 60°C to 100°C, to ensure that the acid solution is completely neutralized; finally, it is washed with clean water, the washing time is 3 to 5 minutes, and the clean water flow rate is 2L / min to ensure that there is no acid residue on the surface; S3, wire drawing process preparation: fix the high-hardness tungsten steel needle on the crane, adjust the speed of the crane to the lowest gear, and ensure the stability and accuracy of the wire drawing process; use a clamp to fix the velvet gold blank bottom to ensure the stability of the blank bottom during the wire drawing process; S4, fine wire drawing operation: During the fine wire drawing process, the operator holds the bottom of the velvet gold billet steady with his left hand to ensure that the billet bottom is stable during the wire drawing process, and uses his right hand to accurately control the speed and position of the crane to adjust the feed rate and direction of the tungsten steel needle to ensure the accuracy of the wire drawing; a high-hardness tungsten steel needle is used to pull vertically from above the billet bottom surface, and the wire drawing force is controlled between 30N and 50N; the pulling force of each wire is monitored in real time by a high-precision force sensor, and the monitored pulling force data is transmitted to the control system, which receives the pulling force data fed back by the sensor in real time and compares it with the preset standard; if the sensor detects a deviation in the wire drawing force, the control system will automatically adjust the speed of the crane or the feed rate of the tungsten steel needle according to the feedback pulling force data, and compensate for the fluctuation of the wire drawing force in time to ensure that the pulling force applied to each wire is consistent; and during the wire drawing process, the tungsten steel needle is guided to slide evenly along the billet bottom surface by a guide tool; S5, post-processing and cleaning: After the wire drawing is completed, first use an ultrasonic cleaning device for cleaning, the cleaning temperature is 60°C to 80°C, the cleaning time is 10 minutes, and the cleaning agent concentration is 0.5%; then use a steam spray cleaning device for further cleaning, the temperature is 90°C to 120°C, and perform high-temperature pickling treatment, the temperature is 260°C to 300°C, for 1 to 3 seconds, and then use potassium hydroxide solution at a temperature of 60°C to 100°C for 1 to 5 minutes to remove the acid; finally, use clean water for cleaning, the water flow rate is 2L / min, and the cleaning time is 3 to 5 minutes.

2. The velvet gold surface fine brushing and texture treatment process according to claim 1, characterized in that: The ultrasonic cleaning device uses ultrasonic waves with a frequency of 20kHz to 40kHz.

3. The velvet gold surface fine brushing and texture treatment process according to claim 1, characterized in that: During the pickling, the concentration of concentrated sulfuric acid used is above 98%.

4. The velvet gold surface fine brushing and texture treatment process according to claim 1, characterized in that: The clean water cleaning step uses a constant flow of 2L / min and a temperature control system to maintain the water temperature between 20°C and 30°C.

5. The velvet gold surface fine brushing and texture treatment process according to claim 1, characterized in that: During the wire drawing process, the feed rate of the tungsten steel needle is 0.5 to 2 mm / s.

6. The velvet gold surface fine brushing and texture treatment process according to claim 1, characterized in that: The accuracy of the force sensor is ±0.1N.

7. The velvet gold surface fine brushing and texture treatment process according to claim 1, characterized in that: The guiding tool is a guiding rail, a guiding groove or a guiding fixture.

8. The velvet gold surface fine brushing and texture treatment process according to claim 5, characterized in that: The brushed effect is inspected using a microscope, depth gauge and gloss meter.

9. The velvet gold surface fine brushing and texture treatment process according to claim 1, characterized in that: During the cleaning process, the pH value of the clean water used is 7.

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