Method for polishing resin material by using light-cured resin

Abstract

The invention relates to the field of resin polishing, in particular to a method for polishing a resin material by utilizing light-cured resin, which comprises the following steps: S1, preparing a resin product; s2, coating the surface of the resin product with light-cured resin; the viscosity of the light-cured resin is 150 to 200 mpa * s; s3, irradiating the resin product by using a photocuring lamp; the irradiation time of the photocuring lamp is 200-240 s, and the density of the photocuring resin after photohardening forming is 1.05-1.13 g / cm < 3 >. The method has the effect of reducing the time cost for polishing the oral medical product made of resin.

Description

Technical Field

[0001] The present application relates to the field of resin polishing, and in particular to a method for polishing a resin material using a photocurable resin. Background Art

[0002] In the field of oral medicine, a large number of resin products are used in the process of orthodontics, fixed restoration and implant guides. For example, the publication number is CN 108478299 A, the publication date is 2018.09.04, and the name is the invention patent of dental implant guide plate for full-mouth edentulous surgery and its manufacturing method. The invention patent discloses a dental implant guide plate, which is made by a resin printing device, and after printing, the dental implant guide plate needs to be polished.

[0003] Another example is the invention patent with publication number CN 115444596 A and publication date 2022.12.09, entitled "A force-applying movable part, a removable orthodontic appliance and its preparation process". The invention patent discloses a force-applying movable part for correcting deformed dentition. The force-applying movable part is an integrally formed structure and is cut by any one of machine tool milling, laser cutting, water jet cutting, plasma cutting, wire cutting or stamping processes, and needs to be ground and polished after cutting.

[0004] In the existing related technology, grinding usually includes the following steps: S1. Use a large tungsten steel grinding head to grind away the excess plastic around the resin product. S2. Use a rubber grinding head for polishing. S3. Use a cloth wheel to lightly pass over the surface of the resin product in the sand. S4. Use a cloth wheel with polishing paste adhered to it for high polishing. S5. Use an ultrasonic cleaner to clean the polishing paste on the surface of the resin product. In the above-mentioned grinding process, the grinding head or cloth wheel needs to change its position regularly or irregularly to ensure that the surface of the resin product is subjected to uniform force during the grinding process, is not easily deformed, and ensures the grinding and polishing effect.

[0005] Regarding the above-mentioned related technologies, the time cost of polishing resin products in the oral medical field is relatively high. Summary of the invention

[0006] In order to reduce the time cost of polishing an oral medical product made of resin, the present application provides a method for polishing a resin material using a photocurable resin.

[0007] The method for polishing a resin material using a light-curable resin provided in the present application adopts the following technical solution: A method for polishing a resin material using a light-curable resin comprises the following steps: S1. preparing resin products; S2, coating the surface of the resin product with a light-curable resin; The viscosity of the photocurable resin is 150-200 mpa·s; S3, irradiating the resin product with a light curing lamp; The irradiation time of the light curing lamp is 200-240 s, and the density of the light curing resin after light curing molding is 1.05-1.13 g / cm 3 .

[0008] By adopting the above technical solution, the light-curing lamp irradiates the light-curing resin, so that the light-curing resin hardens to form a bright surface layer, so that the resin product can have a smoothness that meets the functional requirements without the need for tedious polishing steps. This not only reduces the time cost of polishing oral medical products made of resin, but also makes the processing of resin products cleaner and free of polishing dust.

[0009] Optionally, in the step S2: before coating the photocurable resin on the surface of the resin product, the resin product is steam cleaned.

[0010] By adopting the above technical solution, the dust particles on the surface of the resin product are removed by steam cleaning, so as to ensure that the surface layer formed by the photocurable resin layer is tightly bonded to the surface of the resin product.

[0011] Optionally, the steam temperature for steam cleaning the resin product is 85-110°C.

[0012] By adopting the above technical solution, it is convenient to ensure the cleaning effect of the resin product and reduce the residual dust particles.

[0013] Optionally, in the step S2: a light-curable resin is applied to the resin product using a brush.

[0014] By adopting the above technical solution, the coating range of the photocurable resin can be controlled by using a brush for coating, so that the photocurable resin can be coated locally on the resin product, so that the resin product has both smooth and rough parts, thereby enabling the resin product to meet more diverse needs.

[0015] Optionally, in the step S2: electrostatic spraying is used to apply the photocurable resin to the resin product.

[0016] By adopting the above technical solution, the photocurable resin is coated by electrostatic spraying, which is conducive to ensuring that the photocurable resin is quickly and evenly coated on the resin product, and reducing the occurrence of the photocurable resin being too thick and difficult to completely cure under the irradiation of the photocuring lamp.

[0017] Optionally, the electrostatic spraying method is to first atomize the photocurable resin and make it positively or negatively charged, and then apply the atomized photocurable resin with positive or negative charge to a grounded resin product.

[0018] By adopting the above technical solution, the atomized photocurable resin with positive or negative charge is electrostatically adsorbed on the resin product, and after the photocurable resin is electrostatically adsorbed on the resin product, the charge is directed to the ground, which is beneficial to ensure the safety of the production workshop.

[0019] Optionally, in the step S2: the photocurable resin is applied to the resin product by immersing the resin product in the photocurable resin.

[0020] By adopting the above technical solution, the coating efficiency is high by immersing in the light-curing resin, which is beneficial to further reduce the time cost of polishing the oral medical products made of resin.

[0021] Optionally, after the resin product is immersed in a photocurable resin, the resin product is charged with positive or negative charges, and then the resin product is vibrated.

[0022] By adopting the above technical solution, when the resin product vibrates, on the one hand, the photocurable resin will be evenly diffused under the action of vibration, and on the other hand, excess photocurable resin will fall from the resin product, thereby reducing the occurrence of excessive application of photocurable resin due to immersion.

[0023] Optionally, in the step S3: before irradiating the resin product with a light curing lamp, the resin product is placed in a plasma atmosphere.

[0024] By adopting the above technical solution, the plasma atmosphere carries positive and negative charges, so that, on the one hand, the residual static electricity of the resin product with poor conductivity is taken away by the plasma gas, thereby reducing the occurrence of the situation that the curing quality of the light-cured resin is affected by static discharge during the subsequent irradiation and curing of the resin product. On the other hand, it reduces the occurrence of dust particles suspended in the air in the workshop being electrostatically adsorbed on the resin product to produce black spots, thereby ensuring the product quality of the polishing layer of the resin product.

[0025] Optionally, the photocurable resin contains an electrostatic diluent, and the resistivity of the photocurable resin is 20-60 MΩ.

[0026] By adopting the above technical solution, the electrostatic diluent is helpful to ensure the conductivity of the photocurable resin, thereby making it easier for the photocurable resin to have a positive charge or a negative charge.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. The photocuring lamp irradiates the photocuring resin, causing the photocuring resin to harden and form a bright polishing layer. As a result, the resin product can have the smoothness that meets the usage function without the need for a cumbersome grinding process, which not only reduces the time cost of polishing oral medical products made of resin but also makes the processing process of the resin product cleaner without grinding dust. 2. Through the positive and negative charges carried by the plasma atmosphere, on the one hand, the static electricity remaining in the resin product with poor conductivity is carried away by the plasma gas, thereby reducing the occurrence of the situation where the quality of the hardened photocuring resin is affected by static electricity discharge during the subsequent irradiation and curing process of the resin product. On the other hand, it reduces the occurrence of the situation where dust particles suspended in the air in the workshop are adsorbed by static electricity on the resin product to produce black spots, ensuring the product quality of the polishing layer of the resin product. 3. When the resin product vibrates, on the one hand, the photocuring resin will uniformly diffuse under the action of vibration, and on the other hand, the excess photocuring resin will fall off from the resin product, reducing the occurrence of the situation where the photocuring resin is coated too much due to immersion. Description of the Drawings

[0028] Figure 1 is a schematic process flow diagram of Embodiment 1 of the present application.

[0029] Figure 2 is a schematic process flow diagram of Embodiment 2 of the present application.

[0030] Figure 3 is a schematic process flow diagram of Embodiment 3 of the present application.

[0031] Figure 4 is a schematic process flow diagram of Embodiment 4 of the present application. Detailed Embodiments

[0032] The following further elaborates on the present application in conjunction with the attached Figure 1-4 for a more detailed description of the present application.

[0033] Explanation: In the present application, the resin product refers to all known oral medical products in the field, such as dentures, implant guides, dental films, dental film locators, and mouth openers, etc., made of resin materials.

[0034] Embodiment 1: Embodiment 1 of the present application discloses a method for polishing resin materials using photocuring resin. Referring to Figure 1 , the method for polishing resin materials using photocuring resin includes the following steps: S1. Prepare the resin product.

[0035] S2. Apply light-curing resin on the surface of the resin product. The light-curing resin is in liquid form, and the viscosity of the light-curing resin is 150-200 mpa·s, so as to ensure that after the light-curing resin is applied to the resin product, a bright and smooth polishing layer is formed on the surface of the resin product.

[0036] S3, irradiating the resin product with a light curing lamp. In Example 1 of the present application, the light curing lamp is specifically an ultraviolet UV lamp. The irradiation time of the light curing lamp is 200-240 seconds, and in Example 1 of the present application, it is preferably 200 seconds. The density of the light curing resin after light curing molding is 1.05-1.13g / cm3, and the thickness of the polishing layer formed by the hardening of the light curing resin is 0.1-0.3mm.

[0037] The implementation principle of the method for polishing resin materials using photocurable resin in Example 1 of the present application is as follows: the photocurable resin is irradiated by a photocurable lamp, so that the photocurable resin hardens to form a bright polishing layer, and the polishing processing time of the resin product is shortened to about 20 minutes. The resin product can have a smoothness that meets the functional requirements without the need for cumbersome polishing procedures, which not only reduces the time cost of polishing oral medical products made of resin, but also makes the processing of the resin product cleaner and free of polishing dust.

[0038] Example 2.

[0039] Embodiment 2 of the present application discloses a method for polishing a resin material using a light-curable resin, referring to Figure 2 , in addition to all the technical features of Example 1, also includes: In step S2: the photocurable resin is applied to the surface of the resin product by a brush, so as to locally apply the photocurable resin to the resin product, so that the resin product has both smooth and rough parts, thereby enabling the resin product to meet more diverse needs.

[0040] Furthermore, before applying the photocurable resin on the surface of the resin product with a brush, the resin product needs to be steam-cleaned with steam at a temperature of 85-110°C for 5-10 minutes to ensure that there are no dust particles on the surface of the resin product before applying the photocurable resin, so that the surface layer formed by the photocurable resin layer is tightly bonded to the surface of the resin product.

[0041] In addition, after the resin product is steam cleaned, it is also necessary to dry the resin product and adjust the temperature of the resin product to be consistent with the photocurable resin, so that condensation water is not easy to appear when the photocurable resin is coated on the resin product, thereby reducing the occurrence of condensation water reducing the bonding stability of the photocurable resin and the resin material.

[0042] The implementation principle of the method for polishing resin materials using photocurable resin in Example 2 of the present application is: the resin product is cleaned by steam cleaning so that dust or grease is not easily adhered to the surface of the resin workpiece, thereby ensuring the bonding strength between the photocurable resin and the resin product.

[0043] Example 3.

[0044] Embodiment 3 of the present application discloses a method for polishing a resin material using a photocurable resin, referring to Figure 3 , in addition to all the technical features of Example 1 and Example 2, also includes: In step S2: electrostatic spraying is used to apply photocurable resin to the resin product, the photocurable resin contains an electrostatic diluent, and the resistivity of the photocurable resin is 20-60MΩ. In the present application, the electrostatic spraying method is a method of applying a photocurable resin having different electrical properties from the resin product to the resin product based on the principle of electrostatic adsorption.

[0045] In Example 3 of the present application, the electrostatic spraying method is specifically: atomizing the photocurable resin and carrying a positive charge or a negative charge, and then spraying the atomized photocurable resin carrying a positive charge or a negative charge on a grounded resin product. Through the electrostatic spraying method, the photocurable resin is quickly and evenly applied to the resin product, effectively reducing the time cost of polishing the oral medical product made of resin.

[0046] In step S3: before irradiating the resin product with a light-curing lamp, the resin product is placed in a closed plasma atmosphere. The positive and negative charges carried by the plasma gas, on the one hand, allow the charges of the light-curing resin remaining on the surface of the resin product with poor conductivity to be taken away by the plasma gas, thereby reducing the occurrence of the situation in which the hardening quality of the light-curing resin is affected by electrostatic discharge during the subsequent irradiation and curing process of the resin product. On the other hand, it reduces the occurrence of dust particles suspended in the air in the workshop being electrostatically adsorbed on the resin product to produce black spots, thereby ensuring the product quality of the polishing layer of the resin product.

[0047] The implementation principle of the method of polishing resin materials using photocurable resin in Example 3 of the present application is: based on the principle of electrostatic adsorption, a photocurable resin with electrical properties different from that of the resin product is applied to the resin product, thereby allowing the photocurable resin to be quickly applied to the resin product, thereby reducing the time cost of polishing oral medical products made of resin.

[0048] Example 4.

[0049] Embodiment 4 of the present application discloses a method for polishing a resin material using a light-curable resin, referring to Figure 4 , in addition to all the technical features of Example 1 and Example 2, also includes: In step S2: the photocurable resin contains an electrostatic diluent, and the resistivity of the photocurable resin is 20-60MΩ. In addition, step S2 specifically comprises applying the photocurable resin to the resin product by immersing the resin product in the photocurable resin. Moreover, after the resin product is immersed in the photocurable resin, the resin product is charged with a positive or negative charge, and then the resin product is vibrated, so that the photocurable resin is evenly dispersed and the excess photocurable resin is vibrated and removed. The reason why the resin product needs to be vibrated after being immersed in the photocurable resin is that, although the coating speed is fast in the direction of immersion, it is easy to attach too much photocurable resin to the surface of the resin product, making it difficult for the subsequent photocurable resin to harden quickly and intactly due to excessive thickness. According to the shape of different types of resin products, the amount of positive or negative charge carried by the resin product is adjusted, so that the adsorption force of the resin product on the photocurable resin can be adjusted, so that the resin product leaves a suitable thickness of photocurable resin on the surface after vibration, so that the photocurable resin is completely and quickly hardened to form a bright polishing layer.

[0050] In step S3: before irradiating the resin product with a light-curing lamp, the resin product is placed in a closed and circulating plasma atmosphere. In addition, the thickness of the polishing layer formed by the hardening of the light-curing resin is 0.2-0.5 mm. The positive and negative charges carried by the circulating plasma gas, on the one hand, allow the charges of the resin product itself, which has poor conductivity, to be taken away by the plasma gas, thereby reducing the occurrence of the situation in which the quality of the light-curing resin hardening is affected by electrostatic discharge during the subsequent irradiation and curing of the resin product. On the other hand, it reduces the occurrence of dust particles suspended in the air in the workshop being electrostatically adsorbed on the resin product to produce black spots, thereby ensuring the product quality of the polishing layer of the resin product.

[0051] The implementation principle of the method for polishing a resin material using photocurable resin in Example 4 of the present application is as follows: the speed of photocuring resin is increased by immersing the resin product in the photocurable resin, and the adsorption force on the photocurable resin is adjusted by adjusting the amount of charge carried by the resin product, thereby adjusting the thickness of the polishing layer formed by the hardening of the photocurable resin.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for polishing a resin material using a light-curable resin, characterized in that: The following steps are involved: S1. preparing resin products; S2, coating the surface of the resin product with a light-curable resin; The viscosity of the photocurable resin is 150-200 mpa·s; S3, irradiating the resin product with a light curing lamp; The irradiation time of the light curing lamp is 200-240 s, and the density of the light curing resin after light curing molding is 1.05-1.13 g / cm 3 .

2. The method for polishing a resin material using a light-curable resin according to claim 1, characterized in that: In the step S2: before applying the photocurable resin on the surface of the resin product, the resin product is steam cleaned.

3. The method for polishing a resin material using a light-curable resin according to claim 2, characterized in that: The steam temperature for steam cleaning the resin product is 85-110°C.

4. The method for polishing a resin material using a light-curable resin according to claim 1, characterized in that: In the step S2: a light-curable resin is applied to the resin product using a brush.

5. The method for polishing a resin material using a light-curable resin according to claim 1, characterized in that: In the step S2: electrostatic spraying is used to apply the photocurable resin to the resin product.

6. The method for polishing a resin material using a light-curable resin according to claim 5, characterized in that: The electrostatic spraying method is to first atomize the photocurable resin and make it positively or negatively charged, and then apply the atomized photocurable resin with positive or negative charge to a grounded resin product.

7. The method for polishing a resin material using a light-curable resin according to claim 1, characterized in that: In the step S2, the photocurable resin is applied to the resin product by immersing the resin product in the photocurable resin.

8. The method for polishing a resin material using a light-curable resin according to claim 7, characterized in that: After the resin product is immersed in a photocurable resin, the resin product is charged with positive or negative charges, and then the resin product is vibrated.

9. The method for polishing a resin material using a light-curable resin according to claim 5 or 7, characterized in that: In the step S3: before irradiating the resin product with a light curing lamp, the resin product is placed in a plasma atmosphere.

10. The method for polishing a resin material using a light-curable resin according to claim 5 or 7, characterized in that: The photocurable resin contains an electrostatic diluent, and the resistivity of the photocurable resin is 20-60 MΩ.

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