Polishing process and device for acrylic material

Abstract

This application relates to the technical field of acrylic material processing, and more particularly to a polishing process and apparatus for acrylic materials. The process comprises the sequential steps of rough polishing, preliminary cleaning, fine polishing, secondary cleaning, steam polishing, and final cleaning. Several measures are implemented in each key step to ensure polishing quality and workpiece safety, such as the use of wet sandpaper, a composite material containing fine particles, a temperature-adjustable steam sprayer, and an infrared preheating module. Furthermore, a dedicated polishing apparatus is provided, which integrates a support frame, grinding tools, cleaning equipment, steam polishing equipment, and auxiliary tools. This apparatus significantly improves polishing efficiency and quality, reduces operational difficulty and labor intensity, and effectively mitigates the risk of stress cracking and damage that may occur during the polishing process.

Description

Technical Field

[0001] The present application relates to the technical field of acrylic material processing, and in particular to a polishing process and device for acrylic material. Background Art

[0002] Acrylic is widely used in industry and everyday life due to its excellent transparency and mechanical properties. However, after processing, acrylic often leaves a matte surface and knife marks on parts, which not only affects the aesthetics but also the functionality of the product. To achieve high transparency and finish requirements (e.g., Ra0.2-Ra0.4), various polishing processes are commonly used in the market, including flame polishing, cloth wheel polishing, and diamond polishing. While these traditional polishing methods can partially remove matte and knife marks, they generally have certain limitations.

[0003] Existing acrylic polishing techniques primarily include flame polishing, cloth wheel polishing, and diamond polishing. Flame polishing uses high temperatures to melt the acrylic surface and then rapidly cool it, achieving a smooth finish. Cloth wheel polishing uses a soft cloth and abrasive to rub the acrylic surface, gradually removing surface imperfections. Diamond polishing uses high-speed rotating tools with diamond particles attached, applying high pressure and speed to refine the acrylic surface. While each method has its own unique characteristics, they all share common challenges in practical application.

[0004] In practice, these traditional polishing methods often struggle to simultaneously achieve both transparency and smoothness, especially when processing parts with complex shapes and specialized structures. Furthermore, these methods impose high environmental and equipment requirements, are complex to operate, and are prone to stress cracking, leading to unstable polishing results and difficulty ensuring product quality. Therefore, a new acrylic polishing process is urgently needed that can maintain transparency and smoothness while simplifying the process, reducing costs, and minimizing environmental impact. Summary of the Invention

[0005] The purpose of this application is to overcome the above technical problems and provide a polishing process and device for acrylic materials.

[0006] A polishing process for acrylic material, comprising the following steps:

[0007] (a) Rough polishing: Place the workpiece to be polished steadily. Small workpieces should be fixed to reduce workpiece displacement during the polishing process, which may cause defects. Use 1000-grit sandpaper to remove the knife marks on the surface of the part in one direction, and polish multiple positions alternately.

[0008] (b) Preliminary cleaning: Use clean water to clean the parts after rough polishing to remove dirt and oil on the surface of the parts;

[0009] (c) Fine polishing: Place the workpiece to be polished steadily. Small workpieces should be fixed to reduce workpiece displacement during the polishing process, which may cause defects. Use 3000-grit sandpaper or polishing paste to fine-polish the surface of the part in one direction for 2-5 minutes. For the cavity position, use a polishing pen with a cotton swab or bamboo stick to fine-polish the cavity position for 1-2 minutes. Polish multiple positions alternately.

[0010] (d) Secondary cleaning: Use clean water to clean the parts after fine polishing to remove dirt and oil on the surface of the parts;

[0011] (e) Steam polishing: Hang the workpiece to ensure that it does not shake, reduce the workpiece displacement during the polishing process and cause defects. Take good personal protection before the operation. Use headlight repair solution and steam spray pot to polish the part surface, through holes, and tooth holes for 1-2 minutes, and repeat this action 2-3 times. Polish multiple positions alternately to reduce the impact on the part size.

[0012] (f) Final cleaning: Use clean water to clean the steam-polished parts to remove dirt and oil from the surface of the parts. In addition, before the steam polishing step, use infrared preheating equipment to preheat the workpiece to be polished to reduce the risk of stress cracks generated during the polishing process.

[0013] By employing this technical solution, the acrylic polishing process effectively removes surface matte and knife marks from parts, achieving transparency and a finish of Ra0.2-Ra0.4. This process is simple to operate, requires no special training, and reduces production costs. It is also environmentally friendly and requires no specialized equipment. In particular, the steam polishing step, which uses steam to slightly melt the part surface and then recool it, not only improves product quality and stability but also reduces dimensional changes caused by prolonged polishing, ensuring part precision.

[0014] Preferably, the 1000-grit sandpaper used in the rough polishing step is wet sandpaper and is kept wet during the rough polishing process to improve the effect of removing knife marks; and after the rough polishing step is completed, the surface of the workpiece is wiped dry with a soft rag to better observe the polishing effect.

[0015] By adopting this technical solution, wet sandpaper remains moist during the rough polishing process, effectively improving the removal of knife marks, reducing surface scratches, and achieving a smoother workpiece surface. At the same time, using a soft cloth to dry the workpiece surface helps to better observe the polishing results, promptly identify and address any potential problems, and ensure the smooth progress of subsequent processes.

[0016] Preferably, at least one of the 3000-grit sandpaper or polishing paste used in the fine polishing step is a composite material containing fine particles to enhance the polishing effect and smoothness; and during the fine polishing process, a pneumatic polishing pen can be used in conjunction with a low-speed rotating head to reduce pressure on the workpiece and reduce damage to the workpiece surface.

[0017] By employing this technical solution, the use of a composite material containing fine particles as 3000-grit sandpaper or polishing paste during the fine polishing step significantly enhances the polishing effect and smoothness, resulting in a smoother and finer surface. Furthermore, the use of a pneumatic polishing pen with a low-speed rotating head during the fine polishing process effectively reduces pressure on the workpiece, minimizing surface damage caused by excessive pressure, thereby ensuring polishing quality and workpiece integrity.

[0018] Preferably, during the initial cleaning and secondary cleaning steps, the surface of the parts is checked for residual sand or abrasive, and the residue is gently removed with a brush to ensure thorough cleaning; and after each cleaning, the surface of the workpiece is blown with compressed air to further remove moisture and residue.

[0019] By adopting this technical solution, residual sand or abrasives from the rough and fine polishing processes can be effectively removed, ensuring a thorough surface cleanliness. At the same time, using compressed air to purge the workpiece surface can further remove moisture and residue, minimizing the impact on subsequent processes and improving the quality and finish of the final product.

[0020] Preferably, the steam spray pot used in the steam polishing step has a temperature regulation function, and the steam temperature can be adjusted as needed within a range of 100°C to 150°C to adapt to acrylic workpieces of different materials; and during the steam polishing process, an appropriate amount of wetting agent can be added to the spray pot to improve the contact effect between the steam and the workpiece surface.

[0021] By adopting this technical solution, precise steam polishing can be achieved for acrylic workpieces of various materials, effectively improving polishing quality and efficiency. The temperature adjustment function allows the steam sprayer to be flexibly adjusted between 100°C and 150°C to accommodate the needs of various acrylic materials, ensuring consistent and stable polishing results. Furthermore, adding an appropriate amount of wetting agent during the steam polishing process significantly improves the contact between the steam and the workpiece surface, further enhancing polishing uniformity, reducing polishing time and energy consumption, and lowering production costs.

[0022] A device for polishing acrylic materials, comprising:

[0023] (i) a support frame for fixing the workpiece to be polished;

[0024] (ii) Abrasive tools, including 1000 grit sandpaper and 3000 grit sandpaper or polishing paste;

[0025] (iii) cleaning equipment, including containers of clean water, without alcohol or ultrasonic cleaning equipment;

[0026] (iv) steam polishing equipment, including steam sprayers and repair potions;

[0027] (v) Auxiliary tools, including bamboo sticks or wooden sticks for detail processing; scouring pads for cleaning the surface; pneumatic polishing pens for fine polishing of cavity positions; and an infrared preheating module for preheating the workpiece before steam polishing to reduce stress cracks during the polishing process.

[0028] By employing the above-mentioned technical solutions, this acrylic polishing device effectively improves polishing quality and efficiency, ensuring that workpiece surfaces achieve transparency and a finish of Ra0.2-Ra0.4. The robust support frame design and the use of an infrared preheating module reduce the risk of stress cracking during polishing. Multi-stage cleaning steps ensure surface cleanliness, and the temperature regulation function of the steam polishing equipment enables ideal polishing results for acrylic workpieces of varying materials. Furthermore, the design of auxiliary tools facilitates detailed processing, improving overall operational convenience and flexibility.

[0029] Preferably, the support frame is provided with a fixing point with adjustable height to accommodate workpieces of different thicknesses, and the fixing point has an anti-slip design to ensure the stability of the workpiece; and a suction cup is provided at the bottom of the support frame to increase the overall stability of the device.

[0030] By adopting this technical solution, the support frame's adjustable height fixing points can accommodate acrylic workpieces of varying thicknesses, enhancing the device's versatility and flexibility. The anti-slip design ensures workpiece stability during polishing, effectively preventing defects caused by slippage. Suction cups at the base of the support frame enhance the device's overall stability, making the entire polishing process safer and more reliable.

[0031] Preferably, it also includes a hook for hanging the workpiece to be polished on the support frame. The hook is made of high-temperature resistant material to prevent deformation during steam polishing; and a spring buffer device is provided on the hook to reduce the vibration of the workpiece during steam polishing.

[0032] By adopting this technical solution, the hook design effectively secures the workpiece being polished, preventing it from shifting due to vibration during the steam polishing process, thereby improving polishing precision and stability. Furthermore, the hook, constructed of high-temperature-resistant material, maintains its shape in high-temperature environments, preventing deformation and ensuring the safety and reliability of the workpiece. The spring buffer effectively absorbs and mitigates vibration during the steam polishing process, further enhancing polishing quality and efficiency.

[0033] Preferably, the steam spray pot in the steam polishing equipment is equipped with a filter for filtering impurities to prevent nozzle clogging, and is provided with an automatic cleaning mode to regularly clean the filter to extend its service life; and the steam spray pot is also provided with a flow control valve, which can adjust the steam flow according to actual needs to optimize the polishing effect.

[0034] By adopting the above technical solution, impurities can be effectively filtered and the nozzle can be prevented from clogging, thereby extending the service life of the steam sprayer. At the same time, the design of the flow control valve allows the steam flow to be adjusted according to actual needs, optimizing the polishing effect and improving the polishing quality and efficiency.

[0035] Preferably, it also includes measuring instruments for evaluating the quality of polished parts, specifically including optical microscopes and roughness meters, to accurately detect the flatness and smoothness of the part surface; and the measuring instruments are connected to a data recording module, which can record the test results in real time to facilitate quality traceability.

[0036] By adopting the above technical solution, efficient and high-quality polishing of acrylic materials can be achieved. This process not only meets the requirements of the drawings, making the part surface transparent and smooth to the standard of Ra0.2-Ra0.4, but also effectively removes matte and knife marks, ensuring a smooth and flawless surface. In addition, the entire process is simple to operate, does not require special training, and is low-cost. It is suitable for parts of various shapes and sizes, especially complex parts with special structures and dimensional controls. The steam polishing process uses repair potions and a temperature-controlled steam spray pot to slightly melt and re-cool the part surface, which has minimal impact on the part size and more stable product quality. At the same time, the cleaning and self-inspection procedures after each step ensure the cleanliness of each process and reduce the impact of subsequent processes.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. Through the gradual rough polishing, fine polishing and steam polishing process, the matte and knife marks on the surface of acrylic material can be effectively removed, making it transparent and with a smoothness of Ra0.2-Ra0.4, meeting the needs of high-precision drawings.

[0039] 2. The steam polishing step uses steam to slightly melt the surface of the part and then re-cool it, which has little impact on the part size and ensures the stability of product quality. It is especially suitable for parts with special structural and dimensional control requirements.

[0040] 3. The entire polishing process is simple to operate, does not require special training, is low-cost, and has no high requirements on the environment and special equipment. It is suitable for rapid proofing and mass production of a variety of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1This is one of the process flow charts of a polishing process for an acrylic material in an embodiment of the present application.

[0042] Figure 2 This is the second process flow chart of a polishing process for an acrylic material in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-2 This application is described in further detail.

[0044] Example 1:

[0045] Reference Figure 1 and Figure 2 The present invention provides a polishing process for acrylic materials, comprising the following steps:

[0046] (a) Rough polishing:

[0047] The workpiece to be polished should be placed stably, and small workpieces should be fixed to reduce defects caused by workpiece displacement during the polishing process. Use 1000-grit sandpaper to remove knife marks on the surface of the part in one direction, and polish multiple positions alternately. Specifically, a workbench with a non-slip pad can be used to fix the workpiece to ensure that the workpiece does not move during the polishing process. In addition, wet sandpaper can be selected for 1000-grit sandpaper and kept wet during the polishing process to improve the effect of removing knife marks. After the rough polishing step, use a soft cloth to wipe the surface of the workpiece dry so that the polishing effect can be better observed. For example, wet sandpaper can be made of natural or synthetic fibers to increase friction and durability.

[0048] (b) Preliminary cleaning:

[0049] After rough polishing, clean the parts with clean water to remove any dirt and oil from the surface. To minimize the potential side effects of using alcohol or ultrasonic cleaning equipment, rinse with running water and then wipe dry with a clean, soft cloth. During this process, use a brush to gently remove any remaining grit to ensure a thorough cleaning. For example, use a nylon or wire brush to gently scrub the surface to ensure a clean, residue-free surface.

[0050] (c) Fine polishing:

[0051] Place the workpiece to be polished firmly again. Small workpieces also need to be fixed. Use 3000-grit sandpaper or polishing paste to fine-polish the surface of the part in one direction for 2-5 minutes. For the cavity position, use a polishing pen to clamp a cotton swab or bamboo stick to fine-polish the cavity position for 1-2 minutes, and polish multiple positions alternately. Here, at least one of the 3000-grit sandpaper or polishing paste can be made of a composite material containing fine particles to enhance the polishing effect and smoothness. In addition, during the fine polishing process, a pneumatic polishing pen can be used with a low-speed rotating head to reduce the pressure on the workpiece and reduce damage to the workpiece surface. For example, a pneumatic polishing pen can be selected with an adjustable speed to accommodate workpieces of different hardness.

[0052] (d) Secondary cleaning:

[0053] Rinse the polished parts with clean water to remove any dirt and oil from the surface. Similarly, use a brush to gently remove any remaining sand or abrasive. After each wash, blow compressed air through the surface to further remove any moisture and residue. For example, use a high-pressure air gun to quickly blow through the surface to ensure it is completely dry.

[0054] (e) Steam polishing:

[0055] Hang the workpiece being polished to prevent it from shaking, minimizing defects caused by workpiece movement during the polishing process. Protect yourself beforehand and polish the part surface, through-holes, and tooth holes using headlight repair solution and a steam spray bottle for 1-2 minutes. Repeat this process 2-3 times, alternating polishing locations to minimize impact on part size. The steam spray bottle has a temperature control function, allowing you to adjust the steam temperature as needed within a range of 100°C to 150°C to accommodate acrylic workpieces of varying materials. During the steam polishing process, add an appropriate amount of wetting agent to the spray bottle to improve contact between the steam and the workpiece surface. For example, the wetting agent can be silicone oil or other lubricants, which help improve steam penetration and smoothness.

[0056] (f) Final cleaning:

[0057] Rinse the steam-polished parts with clean water to remove any dirt and oil. Finally, wipe the surface dry with a clean, soft cloth and inspect for any matte or cosmetic defects. For example, you can gently wipe with a cotton ball to ensure a smooth, flawless surface.

[0058] The implementation principle of this embodiment is:

[0059] The above steps complete the entire acrylic material process, from rough polishing to fine polishing and then to steam polishing. First, 1000-grit sandpaper is used to remove large knife marks, followed by fine polishing using 3000-grit sandpaper or polishing paste. Finally, steam polishing is used to eliminate fine matte and knife marks. The entire process is simple to operate, requires no special training, and has low requirements for the environment and equipment. The steam polishing step, in particular, effectively eliminates matte by slightly melting the workpiece surface and then recooling it, while minimizing the impact on part dimensions and ensuring more stable product quality.

[0060] Example 2:

[0061] The difference between this embodiment and the above embodiment is that an infrared preheating module is added to preheat the workpiece before steam polishing to reduce stress cracks during the polishing process.

[0062] (g) Infrared preheating:

[0063] Before the steam polishing step, the workpiece to be polished is preheated using an infrared preheating device set to 60°C to 80°C for approximately 5 minutes. This preheating process uniformly heats the workpiece surface, helping to reduce the risk of stress cracks during polishing. Infrared preheating equipment can be equipped with multi-stage temperature control to precisely control the preheating temperature. For example, a multi-stage temperature control device can be set to multiple temperature zones to gradually increase the workpiece temperature, reducing problems caused by sudden temperature changes.

[0064] The implementation principle of this embodiment is:

[0065] The addition of an infrared preheating step effectively reduces stress cracking caused by sudden temperature changes. Preheating gradually raises the workpiece surface temperature, reducing stress concentrations caused by sudden heat exposure. This not only improves polishing quality and consistency but also extends the life of the workpiece. This measure is particularly important when processing parts with complex shapes and special structures.

[0066] Example 3:

[0067] The difference between this embodiment and the above embodiment is that a device for polishing acrylic materials is introduced, including:

[0068] (i) a support frame for fixing the workpiece to be polished;

[0069] (ii) Abrasive tools, including 1000 grit sandpaper and 3000 grit sandpaper or polishing paste;

[0070] (iii) cleaning equipment, including containers of clean water, without alcohol or ultrasonic cleaning equipment;

[0071] (iv) steam polishing equipment, including steam sprayers and repair potions;

[0072] (v) Auxiliary tools, including bamboo sticks or wooden sticks for detail processing; scouring pads for cleaning the surface; pneumatic polishing pens for fine polishing of cavity positions; and an infrared preheating module for preheating the workpiece before steam polishing to reduce stress cracks during the polishing process.

[0073] Furthermore, each of the above structures is further explained.

[0074] Support frame:

[0075] The support frame features height-adjustable fixing points to accommodate workpieces of varying thicknesses. These fixing points feature a non-slip design to ensure a secure fit. Suction cups are located at the base of the support frame to enhance the overall stability of the device. Specifically, the support frame can utilize a metal frame structure, with adjustable fixing points using bolts or clips to accommodate workpieces of varying thicknesses. For example, the metal frame can be constructed of aluminum alloy or stainless steel for enhanced strength and corrosion resistance.

[0076] Grinding tools:

[0077] Includes 1000-grit sandpaper and 3000-grit sandpaper or polishing paste. 1000-grit sandpaper is primarily used for rough polishing to remove larger knife marks, while 3000-grit sandpaper or polishing paste is used for fine polishing to remove minor scratches. Additionally, a pneumatic sanding pen is available for fine polishing of cavities and grooves. Pneumatic sanding pens can be designed with a slow-speed rotating head to reduce pressure on the workpiece. For example, 3000-grit sandpaper can be made with a ceramic backing for improved wear resistance and cutting performance.

[0078] Cleaning equipment:

[0079] Include a clean water container, not alcohol or ultrasonic cleaning equipment. This can be a simple plastic bucket or stainless steel basin to store cleaning water. During cleaning, rinse under running water and then wipe dry with a clean, soft cloth. Use a brush to gently remove any remaining grit to ensure a thorough cleaning. For example, choose a clean water container with a moderate capacity for easy replacement and cleaning.

[0080] Steam polishing equipment:

[0081] Includes a steam spray pot and repair solution. The steam spray pot has a temperature control function, allowing you to adjust the steam temperature as needed, ranging from 100°C to 150°C to accommodate different acrylic workpiece materials. During the steam polishing process, an appropriate amount of wetting agent can be added to the spray pot to improve the contact between the steam and the workpiece surface. The steam spray pot is also equipped with a filter to filter impurities and prevent nozzle clogging. It also has an automatic cleaning mode to regularly clean the filter and extend its service life. For example, the filter can be equipped with a high-efficiency HEPA filter to ensure long-term reliability.

[0082] Auxiliary tools:

[0083] These include bamboo or wooden sticks for detailed work; scouring pads for surface cleaning; and pneumatic polishing pens for fine polishing of cavities and grooves. Furthermore, an infrared preheating module is included to preheat the workpiece before steam polishing to reduce stress cracking during the polishing process. For example, the scouring pad can be designed with a double-sided design, one soft and the other rough, to meet the cleaning needs of different areas.

[0084] The implementation principle of this embodiment is:

[0085] The integrated unit design improves polishing efficiency and precision. The adjustable height of the support frame and its non-slip fixing points ensure workpiece stability, making it particularly suitable for processing workpieces of varying thicknesses and shapes. A diverse selection of polishing tools allows for flexible selection based on specific needs. The comprehensive cleaning and steam polishing equipment meets all cleaning and polishing requirements. Auxiliary tools further enhance detailed processing capabilities, ensuring high-quality final product standards.

[0086] Example 4:

[0087] The difference between this embodiment and the above embodiment is that a measuring instrument is added to evaluate the quality of the polished part.

[0088] Specifically, these instruments include optical microscopes and roughness meters, which are used to accurately inspect the flatness and finish of part surfaces. Optical microscopes can help observe microstructures and identify subtle scratches or defects, while roughness meters can quantify surface roughness to ensure that it meets the Ra0.2-Ra0.4 standard. The measuring instruments are equipped with data logging modules, which record test results in real time for easy quality traceability. For example, optical microscopes can be equipped with high-resolution models for clearer images, while roughness meters can be portable for convenient on-site use.

[0089] The implementation principle of this embodiment is:

[0090] The introduction of measuring instruments not only enables intuitive assessment of polishing results but also timely identification of potential problems. The high magnification of the optical microscope allows the operator to clearly see every detail of the workpiece surface, while the digital readout of the roughness tester provides objective data support. The use of a data logging module allows the results of each inspection to be saved, facilitating subsequent quality management and improvement. This scientific methodology greatly improves production reliability and consistency.

[0091] Example 5:

[0092] The difference between this embodiment and the above embodiment is that the safety and durability of the steam polishing equipment are enhanced.

[0093] Specifically, the steam sprayer in the steam polishing equipment is equipped with a filter to filter impurities and prevent nozzle clogging. It is also equipped with an automatic cleaning mode to regularly clean the filter and extend its service life. In addition, the steam sprayer is also equipped with a flow control valve, which can adjust the steam flow according to actual needs to optimize the polishing effect. To further improve safety, the handle of the sprayer is made of heat-insulating material to prevent burns to the operator. The hook is made of high-temperature resistant material to prevent deformation during steam polishing; and a spring buffer device is provided on the hook to reduce the vibration of the workpiece during the steam polishing process. For example, the heat-insulating material can be made of polyamide or silicone to provide good heat-insulating properties; the hook can be made of stainless steel to resist deformation at high temperatures.

[0094] The implementation principle of this embodiment is:

[0095] A series of design improvements have significantly enhanced the safety and durability of the steam polishing equipment. The filter and automatic cleaning mode effectively prevent nozzle clogging and extend the equipment's lifespan. The addition of a flow control valve allows the operator to adjust the steam flow according to actual conditions to optimize the polishing effect. The thermal insulation design of the handle and the spring buffer device on the hook greatly improve operator comfort and safety. These improvements not only enhance work efficiency but also safeguard the health and safety of the operator.

[0096] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A polishing process for acrylic material, characterized in that: The following steps are involved: (a) Rough polishing: Place the workpiece to be polished steadily. Small workpieces should be fixed to reduce workpiece displacement during the polishing process, which may cause defects. Use 1000-grit sandpaper to remove the knife marks on the surface of the workpiece in one direction, and polish multiple positions alternately. (b) Preliminary cleaning: Use clean water to clean the workpiece after rough polishing to remove dirt and oil on the workpiece surface; (c) Fine polishing: Place the workpiece to be polished steadily. Small workpieces should be fixed to reduce workpiece displacement during the polishing process, which may cause defects. Use 3000-grit sandpaper or polishing paste to fine polish the workpiece surface in one direction for 2-5 minutes. For the cavity position, use a polishing pen with a cotton swab or bamboo stick to fine polish the cavity position for 1-2 minutes. Polish multiple positions alternately. (d) Secondary cleaning: Use clean water to clean the workpiece after fine polishing to remove dirt and oil on the workpiece surface; (e) Steam polishing: Hang the workpiece to ensure that it does not shake, reduce workpiece displacement during the polishing process and cause defects. Take personal protection before the operation. Use headlight repair solution and steam spray pot to polish the workpiece surface, through holes, and tooth holes for 1-2 minutes. Repeat this action 2-3 times, alternately polishing multiple positions to reduce the impact on the workpiece size. The steam spray pot used in the steam polishing step has a temperature regulation function, and the steam temperature is adjusted as needed within a range of 100°C to 150°C to adapt to acrylic workpieces of different materials; and during the steam polishing process, an appropriate amount of wetting agent is added to the spray pot to improve the contact effect between the steam and the workpiece surface; (f) Final cleaning: Use clean water to clean the workpiece after steam polishing to remove dirt and oil on the workpiece surface. In addition, before the steam polishing step, use infrared preheating equipment to preheat the workpiece to be polished to reduce the risk of stress cracks generated during the polishing process.

2. The polishing process for acrylic material according to claim 1, characterized in that: The 1000-grit sandpaper used in the rough polishing step is wet sandpaper and is kept wet during the rough polishing process to improve the effect of removing knife marks; and after the rough polishing step is completed, a soft rag is used to wipe the surface of the workpiece dry so that the polishing effect can be better observed.

3. The polishing process for acrylic material according to claim 1, characterized in that: At least one of the 3000-grit sandpaper or polishing paste used in the fine polishing step is a composite material containing fine particles to enhance the polishing effect and smoothness; and during the fine polishing process, a pneumatic polishing pen is used in conjunction with a low-speed rotating head to reduce pressure on the workpiece and reduce damage to the workpiece surface.

4. The polishing process for acrylic material according to claim 1, characterized in that: During the initial cleaning and secondary cleaning steps, check whether there is any residual sand or grinding paste on the surface of the workpiece, and use a brush to gently remove the residue to ensure thorough cleaning; and after each cleaning, use compressed air to blow the surface of the workpiece to further remove moisture and residue.

5. A device for polishing acrylic materials, applied to the polishing process of acrylic materials according to any one of claims 1 to 4, characterized in that: include: (i) a support frame for fixing the workpiece to be polished; (ii) Abrasive tools, including 1000 grit sandpaper and 3000 grit sandpaper or polishing paste; (iii) cleaning equipment, including fresh water containers; (iv) steam polishing equipment, including steam sprayers and repair potions; (v) Auxiliary tools, including bamboo sticks or cotton swabs for detail processing; scouring pads for cleaning surfaces; pneumatic polishing pens for fine polishing of cavity positions; and infrared preheating equipment for preheating the workpiece before steam polishing to reduce stress cracks during the polishing process.

6. The device for polishing acrylic materials according to claim 5, characterized in that: The support frame is provided with a fixing point with adjustable height to accommodate workpieces of different thicknesses, and the fixing point has an anti-slip design to ensure the stability of the workpiece; and a suction cup is provided at the bottom of the support frame to increase the overall stability of the device.

7. The device for polishing acrylic materials according to claim 5, characterized in that: It also includes a hook for hanging the workpiece to be polished on the support frame. The hook is made of high-temperature resistant material to prevent deformation during steam polishing; and a spring buffer device is provided on the hook to reduce the vibration of the workpiece during the steam polishing process.

8. The device for polishing acrylic materials according to claim 5, characterized in that: The steam spray pot in the steam polishing equipment is equipped with a filter for filtering impurities to prevent nozzle clogging, and is provided with an automatic cleaning mode to regularly clean the filter and extend its service life; and the steam spray pot is also provided with a flow control valve to adjust the steam flow according to actual needs and optimize the polishing effect.

9. The device for polishing acrylic materials according to claim 5, characterized in that: It also includes measuring instruments for evaluating the quality of polished workpieces, specifically optical microscopes and roughness meters, to accurately detect the flatness and smoothness of the workpiece surface; and the measuring instruments are connected to a data recording module to record the test results in real time for easy quality traceability.

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