Ceramic penholder manicure pen and manufacturing process thereof

Abstract

The ceramic penholder manicure pen comprises a penholder body, one end of the penholder body is fixedly connected with a connecting ring, the outer side of the end, away from the penholder body, of the connecting ring is sleeved with a pen cap, and the end, close to the pen cap, of the connecting ring is fixedly connected with a pen point; a transparent sleeve contained in the pen cap is arranged on the outer side of the pen point in a sleeved mode, the pen holder body is made of 95 aluminum oxide ceramic, the mass content of aluminum oxide in the 95 aluminum oxide ceramic is 95%, the pen holder is formed through hot die casting of a steel die and then sintered at the high temperature, the high-temperature sintering temperature ranges from 1650 DEG C to 1700 DEG C, and the pen holder body is made of the aluminum oxide ceramic. The sintering time is 12 hours to 24 hours; the high-strength wear-resistant high-temperature-resistant composite material is scientific and reasonable in structural design and convenient to use, has the advantages of high strength, high wear resistance, high temperature resistance and the like in material performance, is exquisite and durable in appearance decoration, is advanced in manufacturing process and high in controllability, and can efficiently and stably produce high-quality products.

Description

TECHNICAL FIELD

[0001] The present application relates to the cross-technical field of makeup tools and ceramic material preparation, in particular to a ceramic pen barrel manicure pen and a manufacturing process thereof. BACKGROUND

[0002] A manicure pen is a fine makeup tool specially used for manicure art design, nail polish application or color drawing, which is usually composed of a pen barrel, a pen tip and auxiliary components (such as a pen cap, a liquid storage structure), and the pen tip is mostly made of nylon hair, silica gel or metal to meet different process requirements (such as outlining lines, dotting, gradient coloring, etc.), and some high-end products will combine ceramics or special alloys to improve durability and accuracy.

[0003] Currently, in the field of manicure tools, traditional pen barrels are mostly made of plastic or metal, which has problems such as easy aging deformation and too fast heat conduction affecting operation comfort. Although the existing ceramic pen barrel has corrosion resistance, there are still obvious defects in its preparation process: on the one hand, the conventional ceramic sintering temperature control is not precise, making it difficult to balance the mechanical strength and surface finish of the pen barrel; on the other hand, the bonding strength between the glaze layer and the ceramic substrate is insufficient, and cracks or peeling are easy to occur when the temperature difference changes, especially when a noble metal decorative layer is applied, due to the poor matching of the glaze component ratio (such as SiO2 / Al2O3 ratio) and the gold baking process parameters (temperature curve, holding time), the metal layer is easy to oxidize and the thickness is uneven.

[0004] Therefore, a ceramic pen barrel manicure pen and a manufacturing process thereof are proposed to solve the above-mentioned problems. SUMMARY

[0005] The present application aims to provide a ceramic pen barrel manicure pen and a manufacturing process thereof to solve the problems of plastic aging and metal heat conduction in the current manicure pen barrel materials, and the defects of insufficient strength and poor glaze adhesion caused by inaccurate sintering process in the existing ceramic pen barrel, as well as the uneven oxidation of noble metal decorative layer.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a ceramic pen barrel manicure pen and a manufacturing process thereof, comprising a pen barrel body, one end of the pen barrel body is fixedly connected with a connecting ring, the outer side of the end of the connecting ring away from the pen barrel body is sleeved with a pen cap, the end of the connecting ring close to the pen cap is fixedly connected with a pen tip, and the outer side of the pen tip is sleeved with a transparent sleeve accommodated in the pen cap.

[0007] Preferably, the pen barrel body is made of 95 alumina ceramic, the mass content of aluminum oxide in the 95 alumina ceramic is 95%, the pen barrel is formed by steel mold hot pressure casting and then sintered at high temperature, the temperature range of high temperature sintering is 1650℃ to 1700℃, and the sintering time is 12 hours to 24 hours.

[0008] Preferably, the outer surface of the pen barrel body is provided with a color glaze layer, the color glaze layer is composed of silicon dioxide and aluminum oxide, the mass ratio of silicon dioxide to aluminum oxide is 3:1 to 5:1, the thickness of the color glaze layer is 0.1mm to 0.3mm, and the color glaze layer is prepared by firing at 1050℃ to 1100℃ for 4 to 4.5 hours.

[0009] Preferably, the surface of the color glaze layer is further provided with a gold layer, the gold layer is prepared by a gold baking process, the temperature of the gold baking process is 750℃ to 850℃, and the holding time is 2 to 3 hours; the gold layer is made of gold water with a gold content of 10% to 12%, and the thickness of the gold layer is 0.5μm to 2μm.

[0010] Preferably, the connecting ring and the pen tip are both made of metal, and the transparent sleeve is made of heat-resistant transparent polymer material.

[0011] Preferably, the method comprises the following steps: S1. Preparing a 95 alumina ceramic pen barrel blank: mixing alumina powder and paraffin-based binder to prepare hot-pressing casting slurry, injecting into a steel mold at 60-80℃ and 0.3-0.7MPa pressure; after demolding, degassing at 200-600℃ in stages, and then sintering at 1700℃ for 12 to 24 hours; S2. Glazing and firing: applying glaze on the surface of the pen barrel, the thickness of the glaze layer is 0.1-0.3mm, and the temperature is raised to 1100℃ at a rate of 1-5℃ / min and held for 3-5 hours; S3. Gold baking treatment: after glazing and firing, apply gold water, dry at 120℃, then heat to 800℃ at a rate of 2-5℃ / min and hold for 3 hours for gold baking, and the furnace is cooled to below 300℃ before discharging; S4. Assembly: the metal connecting ring is fixed to the end of the pen barrel body by high-temperature brazing, and the pen tip, transparent sleeve and pen cap are assembled.

[0012] Preferably, the sintering process in step S1 adopts a two-step sintering method, first sintering at 1700℃ for 2 hours, then reducing to 1600℃ for 10 hours.

[0013] Preferably, a fluxing agent and a defoaming agent are added during the preparation of the glaze layer in step S2; the fluxing agent is borax, and the addition amount is 0.5% to 2% of the total weight of the glaze; the fineness of the glaze is controlled to be ≥400 mesh; and the defoaming agent is a phosphate defoaming agent.

[0014] Preferably, in step S3, the glaze surface is first pre-fired at 600℃ for 30min before gold baking, and then slowly cooled to below 300℃ at a rate of ≤2℃ / min after gold baking.

[0015] Preferably, nitrogen is introduced during the sintering process in step S1, and a hot isostatic pressing treatment is performed after sintering, with a pressure of 100 MPa to 150 MPa and a temperature of 1600°C to 1650°C.

[0016] Preferably, the hot-pressing slurry in step S1 is subjected to vacuum degassing treatment, with a vacuum degree of ≤0.1 MPa and a degassing time of ≥30 minutes.

[0017] Compared with the prior art, the ceramic pen barrel manicure pen and its manufacturing process have the advantages of scientific and reasonable structure design, convenient use, high strength, high wear resistance, high temperature resistance, and the like, and have a delicate and durable appearance, and the manufacturing process is advanced and controllable, and can efficiently and stably produce high-quality products, and the specific contents are as follows: 1. In terms of product structure design, the reasonable collocation of the pen barrel body, the connecting ring, the pen cap, the pen tip and the transparent sleeve forms a stable and practical overall structure. The transparent sleeve can effectively protect the pen tip from being contaminated and damaged by the outside world when not in use, and can also facilitate observation of the pen tip state, thereby improving the convenience of use. The connecting ring is made of metal material, which ensures the firmness of the connection between the pen barrel body and the pen tip, reduces the risk of part falling off during use, and prolongs the service life of the manicure pen. 2. In terms of material performance, the pen barrel body is made of 95 alumina ceramic, which has a mass content of 95% of aluminum oxide and has extremely high hardness and wear resistance after high-temperature sintering, which is better than traditional plastic or ordinary metal pen barrels and can withstand friction and collision during long-term use without scratches and deformation. At the same time, 95 alumina ceramic has good high-temperature resistance and chemical stability and can withstand various chemical reagents that may be contacted during manicure without changing its performance due to temperature changes, thereby ensuring the stability and safety of the pen barrel. In addition, the ceramic material has a smooth surface and a comfortable touch, and is not easy to slip when holding, thereby improving the stability of operation. 3. In terms of appearance decoration, the color glaze layer on the surface of the pen barrel body is composed of a specific proportion of silicon dioxide and aluminum oxide and is formed through precise firing process, which not only gives the pen barrel a variety of colors and enhances the appearance and visual appeal of the product, but also has a uniform and dense texture and good corrosion resistance and wear resistance, and can maintain bright colors for a long time. The gold layer on the surface of the color glaze layer is made through a specific gold baking process, and the gold layer has a moderate thickness and is firmly attached, which further improves the grade and decoration effect of the product, making it more competitive in the market, and the gold layer is not easy to wear and fade, thereby ensuring the durability of the product appearance. 4. In terms of manufacturing process, the pen barrel body is made by hot-pressing casting and high-temperature sintering, the hot-pressing casting process can accurately control the shape and size of the pen barrel, ensure the consistency of the product, and the use of high-temperature sintering and two-step sintering process makes the ceramic body structure more dense, reduces the internal porosity and defects, and improves the mechanical properties of the pen barrel. The addition of fluxing agent and defoaming agent during glazing effectively improves the fluidity and stability of the glaze, making the glaze smooth and flat, free of bubbles and pinholes, and improving the appearance quality of the product. The pre-burning treatment before gold baking and the accurate control of the gold baking process parameters enhance the bonding force between the gold layer and the glaze layer, ensure the firmness and color stability of the gold layer. The whole manufacturing process is clear and the parameters are clear, which is conducive to realizing large-scale production, and the precise control of each link ensures the stability and reliability of the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the nail pen in the present application; Figure 2 is a schematic diagram of the structure at the pen tip in the present application; Figure 3 is a schematic diagram of the structure at the transparent sleeve in the present application; Figure 4 is a schematic diagram of the manufacturing process flow of the ceramic pen barrel in the present application.

[0019] In the figure: 1, pen barrel body; 2, connecting ring; 3, pen cap; 4, pen tip; 5, transparent sleeve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. EMBODIMENT

[0021] As shown in Figures 1-3 The ceramic pen barrel nail pen disclosed by the present application has an overall structure including a pen barrel body 1, a connecting ring 2, a pen cap 3, a pen tip 4 and a transparent sleeve 5, and each component cooperates to realize the function and decoration effect of the nail pen.

[0022] As shown in Figure 1As shown, the pen barrel body 1 is the core holding component of the manicure pen, made of 95 alumina ceramic, with the mass ratio of aluminum oxide being 95%. The material is made by hot-pressing molding of steel mold and high-temperature sintering, with the characteristics of high hardness, wear resistance and corrosion resistance, and the surface is smooth and delicate, with comfortable hand feeling when holding, meeting the long-term use requirements of manicure tools. The outer surface of the pen barrel body 1 is provided with a color glaze layer and a gold layer in turn, wherein the color glaze layer is composed of silicon dioxide and aluminum oxide in a mass ratio of 3:1 to 5:1, with a thickness of 0.1mm to 0.3mm, and presents uniform and lustrous color through precise firing; the gold layer is covered on the surface of the glaze layer, formed by gold roasting process with high-purity gold water, with a thickness of 0.5μm to 2μm, further improving the visual quality and high-end properties of the product. As shown in Figure 2 The connecting ring 2 is made of metal material (preferably stainless steel or brass), fixed to the end of the pen barrel body 1 by high-temperature brazing process, and the outer side is provided with a structure matched with the pen cap 3 to ensure the stability after the pen cap is assembled. The end of the connecting ring 2 away from the pen barrel is integrally formed or welded with a pen tip 4, which is made of corrosion-resistant metal material (such as titanium alloy or gold-plated copper material) to ensure the smooth discharge of manicure pigment and the durability of use. As shown in Figure 3 The transparent sleeve 5 is provided outside the pen tip 4 and is accommodated in the pen cap 3, which is made of heat-resistant transparent polymer material (such as polyether ether ketone or high-temperature resistant acrylic), which can not only directly observe the state of the pen tip, but also isolate most of the air and dust to avoid clogging or contamination of the pen tip due to long-term storage. The pen cap 3 is made of metal and is adapted to the connecting ring 2, and the inner side is provided with a sealing rubber ring to enhance the protection effect of the pen tip. As shown in Figure 4 The ceramic pen barrel manicure pen manufacturing process of the present application is precisely controlled through multiple steps to realize high performance and high quality of the product, and the specific steps are as follows: Step S1: preparing 95 alumina ceramic pen barrel blank Slurry preparation: mix alumina powder with a purity of 95% and paraffin-based binder in a mass ratio of 8:2, stir at 150℃ for 3 hours to form uniform hot-pressing slurry; Forming process: inject the slurry into a preheated steel mold at 60-80℃, and keep the pressure at 0.3-0.7MPa for 5 minutes, then demold after the slurry is cooled and solidified to obtain the pen barrel blank; Glue removal process: place the blank in a glue removal oven, and increase the temperature to 200℃ (1 hour), 400℃ (2 hours) and 600℃ (3 hours) at a rate of 50℃ / hour, and completely remove the binder; Sintering process: Two-step sintering method is adopted. First, the degreased green body is kept at 1700℃ for 2 hours, then reduced to 1600℃ for 10 hours. Nitrogen is introduced during sintering to prevent oxidation of the body. After sintering, hot isostatic pressing (pressure 100-150MPa, temperature 1600-1650℃) is performed to further eliminate internal pores and improve ceramic density. Step S2: glazing and firing Glaze preparation: The base material is mixed with silica and alumina in a mass ratio of 3:1 to 5:1, 0.5%-2% borax is added as a fluxing agent, and 0.1% phosphate antifoam agent is added. The mixture is ground to a fineness of ≥400 mesh by a ball mill to form a glaze slurry; Glazing operation: Glazing is performed on the surface of the pen barrel body by immersion glazing. By controlling the glazing time and speed, the glaze layer thickness is uniformly controlled at 0.1-0.3mm; Glazing process: The glazed body is placed in a kiln and heated to 1100℃ at a rate of 1-5℃ / min, and kept for 3-5 hours. After natural cooling, a smooth and flat color glaze layer is formed. Step S3: gold baking process Pre-treatment: The glazed pen barrel is pre-fired at 600℃ for 30 minutes to remove impurities on the glaze surface and enhance the adhesion of the gold layer; Gold water application: Gold water with a gold content of 10%-12% is applied on the surface of the glaze layer by spraying or hand drawing, and dried at 120℃ for 30 minutes; Gold baking process: The pen barrel is placed in a gold baking furnace and heated to 800℃ at a rate of 2-5℃ / min, and kept for 3 hours. Then it is slowly cooled to below 300℃ at a rate of ≤2℃ / min and taken out of the furnace, forming a uniform and bright gold layer. Step S4: assembly Connecting ring fixation: The metal connecting ring is connected to the end of the pen barrel body by high-temperature brazing (temperature 800-900℃) to ensure a welding strength of ≥50MPa; Component assembly: The pen nib 4 is welded to the end of the connecting ring 2, and after the transparent sleeve 5 is fitted, the pen cap 3 is inserted and fixed with the connecting ring 2 to complete the overall assembly. The advantages of two-step sintering method: Through two-step sintering of high-temperature rapid densification and medium-temperature grain refinement, compared with traditional single-step sintering process, this sintering method can improve the densification of ceramic materials, and significantly enhance the mechanical properties, reaching a higher level of bending strength; Glaze composition control: The ratio of silica to alumina is controlled at 3:1-5:1, and borax fluxing agent is added to reduce the melting temperature of the glaze, avoiding deformation of the pen barrel ceramic due to high temperature; The baking gold process parameters: 800℃ holding 3 hours of baking gold conditions, can ensure that the gold layer is fully molten and attached, and can avoid excessive oxidation of the gold layer, resulting in dull color.

[0023] Working principle: the pen barrel body 1 as the core holding component, adopts 95 alumina ceramic material, high temperature sintering forms high strength, high hardness structure, its surface through the glaze and baking gold process formed color glaze layer and gold layer, not only improves the anti-skid performance when holding, but also reduces the erosion of hand sweat on the pen barrel through the smooth glaze surface, at the same time, the wear-resistant characteristics of gold layer ensure the integrity of appearance in long-term use, provide stable holding basis for users. The connecting ring 2 as the connecting hub of the pen barrel body 1 and the pen tip 4, adopts metal material to ensure the rigidity of the structure connection, which is fixed with the pen barrel body 1 through high temperature brazing, forming a firm integrated structure, avoiding loosening due to stress in the manicure operation process, ensuring the operation accuracy of the pen tip 4. The pen tip 4 as the output component of manicure pigment, its metal material has good shaping ability, can design specific pen tip shape according to manicure demand, in order to accurately control the outflow amount and application range of pigment. The transparent sleeve 5 sleeved on the outside of the pen tip 4 is made of heat-resistant transparent polymer material, which can reduce the air drying of residual pigment on the pen tip 4 by blocking air when not in use, and the transparent property is convenient for users to observe the state of the pen tip 4. The pen cap 3 is sleeved on the outside of the end of the connecting ring 2 away from the pen barrel body 1, which wraps the pen tip 4 and the transparent sleeve 5 as a whole in the non-use state, further isolates the external dust and moisture, protects the pen tip 4 from damage, and prolongs the service life of the manicure pen.

[0024] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A ceramic pen holder nail art pen comprising a pen holder body (1), characterized in that: One end of the pen barrel body (1) is fixedly connected with a connecting ring (2), the outer side of the end of the connecting ring (2) away from the pen barrel body (1) is sleeved with a pen cap (3), the end of the connecting ring (2) close to the pen cap (3) is fixedly connected with a pen nib (4), and the outer side of the pen nib (4) is sleeved with a transparent sleeve (5) accommodated in the pen cap (3).

2. The ceramic pen barrel manicure pen according to claim 1, characterized in that: The pen barrel body (1) is made of 95 alumina ceramic, the mass content of aluminum oxide in the 95 alumina ceramic is 95%, the pen barrel is formed by hot-pressing casting of a steel mold and then high-temperature sintering, the temperature range of the high-temperature sintering is 1650-1700℃, and the sintering time is 12-24 hours.

3. The ceramic barrel manicure pen according to claim 1, characterized in that: The outer surface of the pen barrel body (1) is provided with a color glaze layer, the color glaze layer is composed of silicon dioxide and aluminum oxide, the mass ratio of silicon dioxide to aluminum oxide is 3:1-5:1, the thickness of the color glaze layer is 0.1-0.3mm, and the color glaze layer is prepared by sintering at 1050-1100℃ for 4-4.5 hours.

4. The ceramic barrel manicure pen according to claim 3, characterized in that: The surface of the color glaze layer is further provided with a gold layer, the gold layer is prepared by a gold baking process, the temperature of the gold baking process is 750-850℃, and the holding time is 2-3 hours; the gold layer is made of gold water with a gold content of 10-12%, and the thickness of the gold layer is 0.5-2μm.

5. The ceramic barrel manicure pen according to claim 1, wherein: The connecting ring (2) and the pen nib (4) are both made of metal, and the transparent sleeve (5) is made of heat-resistant transparent high polymer material.

6. A process for making a ceramic pen barrel according to any one of claims 1 to 5, characterized in that, The method comprises the following steps: S1. preparing a 95 alumina ceramic pen barrel blank: mixing alumina powder and paraffin-based binder to prepare hot-pressing casting slurry, injecting into a steel mold at 60-80℃ and 0.3-0.7MPa pressure, demolding, degassing at 200-600℃ in stages, and then sintering at 1700℃ for 12-24 hours; S2. glazing and firing: applying glaze on the surface of the pen barrel, the thickness of the glaze layer is 0.1-0.3mm, and the temperature is raised to 1100℃ at a rate of 1-5℃ / min and kept for 3-5 hours; S3. gold baking treatment: after glazing and firing, gold water is applied, dried at 120℃, and then baked at 800℃ at a rate of 2-5℃ / min for 3 hours, and the furnace is cooled to below 300℃ before being taken out of the furnace; S4. assembly: the metal connecting ring (2) is fixed to the end of the pen barrel body (1) by high-temperature brazing, and the pen nib (4), the transparent sleeve (5) and the pen cap (3) are assembled.

7. The fabrication process of claim 6, wherein: The sintering process in step S1 adopts a two-step sintering method, first sintering at 1700℃ for 2 hours, and then sintering at 1600℃ for 10 hours.

8. The fabrication process of claim 6, wherein: In the preparation process of the glaze layer in step S2, a fluxing agent and a defoaming agent are added; the fluxing agent is borax, the addition amount is 0.5-2% of the total weight of the glaze, the fineness of the glaze is controlled to be ≥400 mesh, and the defoaming agent is a phosphate defoaming agent.

9. The fabrication process of claim 6, wherein: In step S3, the glaze surface is pre-fired at 600℃ / 30min before gold baking, and after gold baking, the temperature is slowly cooled to below 300℃ at a rate of ≤2℃ / min.

10. The fabrication process of claim 6, wherein: The sintering process in the step S1 is protected by nitrogen, and the hot isostatic pressing treatment is carried out after sintering, the pressure is 100MPa to 150MPa, and the temperature is 1600℃ to 1650℃.

11. The fabrication process of claim 6, wherein: The hot-pressing casting slurry in the step S1 is subjected to vacuum degassing treatment, the vacuum degree is ≤0.1MPa, and the degassing time is ≥30 minutes.

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