Silver electroplating stoving varnish and production process thereof

Abstract

The invention provides electrosilvering stoving varnish and a production process thereof, and relates to the field of paints, the electrosilvering stoving varnish comprises the following raw materials by weight: 65-67 parts of modified organic silicon resin, 1-3 parts of CAB, 1.7-1.9 parts of amino resin, 6-8 parts of electrosilvering silver powder, 12-17 parts of butyl acetate, 0.1-0.3 part of a leveling agent, 2-4 parts of an adhesion promoter, 3-5 parts of PMA, and 0.5-1.5 parts of cyclohexanone; by means of the unique formula design, the electrosilvering baking varnish achieves perfect balance of weather resistance, temperature resistance and salt spray resistance, meanwhile has excellent solvent resistance, can still keep a lasting and beautiful appearance effect under the condition that a traditional glazing process is omitted, and is suitable for large-scale popularization and application. The problems that in a traditional electroplating process and common baking varnish, weather resistance, temperature resistance and salt spray resistance cannot be balanced, solvent resistance is poor, an ideal effect can be achieved only by depending on a glazing process, the construction process is complex, and cost is high are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paint production, in particular to a silver electroplating baking paint and a production process thereof. BACKGROUND

[0002] The silver electroplating baking paint is a surface treatment technology combining the effects of silver electroplating and baking paint process. The traditional electroplating process and ordinary baking paint cannot balance the weather resistance, temperature resistance and salt mist resistance, have poor solvent resistance, and must rely on the finishing process to achieve the ideal effect, resulting in a complex construction process and high cost. At the same time, the product surface has a rough feel, insufficient hardness (less than 4H), poor adhesion, short-lasting electroplating effect, limited gloss and metallic texture, which seriously restricts its application in high-end fields such as automobiles, electronics and home appliances. In addition, the material ratio is not accurate during the preparation process, resulting in a phenomenon that the preparation does not meet the requirements. SUMMARY

[0003] The present application relates to the technical field of paint production, in particular to a silver electroplating baking paint and a production process thereof.

[0004] The present application provides a silver electroplating baking paint and a production process thereof, which comprises the following raw materials by weight: 66 parts of 6620 modified silicone resin, 2 parts of CAB, 1.8 parts of 167 amino resin, 7 parts of silver powder for silver electroplating, 15 parts of butyl acetate, 0.2 parts of leveling agent, 3 parts of adhesion promoter, 4 parts of PMA, and 1 part of cyclohexanone.

[0005] A production process of a silver electroplating baking paint, which comprises the following steps: 1) Preparation of CAB slurry with a concentration of 20%: mix 2 parts of CAB and 8 parts of butyl acetate, and stir until uniformly dispersed; 2) Preparation of silver powder slurry: mix 7 parts of silver powder for silver electroplating and 7 parts of butyl acetate; 3) Take 10 parts of 20% CAB slurry and 14 parts of silver powder slurry for silver electroplating, and mix and stir uniformly; 4) Mix 10 parts of 20% CAB slurry and 14 parts of silver powder slurry for silver electroplating, and add 66 parts of 6620 modified silicone resin and 1.8 parts of 167 amino resin, and stir uniformly; 5) Then, add 0.2 parts of leveling agent and 3 parts of adhesion promoter, and stir uniformly; 6) Finally, add 4 parts of PMA solvent and 1 part of cyclohexanone solvent to adjust the viscosity to 65 ku, and stir uniformly; 7) Quality inspection, packaging and storage.

[0006] Furthermore, the mixing equipment in step 3) includes a mixing box, a discharge port is provided at the bottom of the mixing box; a fixed top plate is fixedly installed on the top of the mixing box; a feed barrel is symmetrically fixedly installed on the top of the fixed top plate; the mixing box also includes: a support frame, the support frame is fixedly installed on the outside of the mixing box; a support column, the shape of the support column is an L-shaped column structure, and the number of the support columns is set to six, and the support columns are fixedly installed on the outside of the support frame in a circular array; a fixed base, the fixed base is fixedly installed on the bottom of the support column.

[0007] Furthermore, the mixing equipment includes a fixed top plate and also includes: a mounting seat, the mounting seat is fixedly mounted on the top of the fixed top plate; a fixed seat, the fixed seat is fixedly mounted on the top of the mounting seat; a transmission motor, the number of transmission motors is set to two, and the transmission motors are symmetrically fixed on the top of the fixed seat; a stirring shaft, the stirring shaft rotates at the bottom of the fixed seat; a stirring block, the stirring block is integrally arranged on the outside of the stirring shaft; a transmission connection is transmitted between the top of the stirring shaft and the rotating shaft of one of the transmission motors; a transmission seat, the transmission seat rotates in the middle of the mounting seat; a transmission tooth is fixedly mounted on the top of the transmission seat, and the transmission teeth of the transmission seat are connected to the rotating shaft of another transmission motor through gear transmission; a cleaning scraper, the number of cleaning scrapers is set to four, and the cleaning scrapers are integrally arranged at the bottom of the transmission seat in a ring array; a stirring side column, the number of stirring side columns is set to four, and the stirring side columns are cross-shaped and integrally arranged at the bottom of the transmission seat; an auxiliary block, the auxiliary block is integrally arranged on both sides of the stirring side column.

[0008] Furthermore, the mixing equipment includes a feed barrel and also includes: a mounting bracket, the mounting bracket is fixedly installed on the top of the feed barrel; a transmission cylinder, the transmission cylinder is fixedly installed in the middle of the mounting bracket; a push plate, the push plate slides inside the feed barrel; a transmission connection between the bottom of the piston rod of the transmission cylinder and the top of the push plate; and a feed port, the feed port is opened on one side of the feed barrel.

[0009] The present invention provides an electroplated silver paint and a production process thereof, which has the following beneficial effects: With its unique formula design, electroplated silver paint achieves a perfect balance of weather resistance, temperature resistance and salt spray resistance. It also has excellent solvent resistance and can maintain a long-lasting and beautiful appearance without the traditional varnishing process. The surface of the product has a delicate and smooth ceramic-like touch and excellent hardness. Combined with the breakthrough nano-level adhesion promotion technology, the bonding strength between the coating and the substrate reaches the level 0 standard. At the same time, a special metal directional arrangement process is used to achieve a mirror-level electroplating effect. It can be widely used in automotive parts, 3C electronic products, high-end home appliances, medical equipment, aerospace and other fields with strict requirements on surface treatment. Its comprehensive performance is improved by more than 50% compared with traditional electroplating processes, and it can achieve a decorative effect comparable to vacuum plating. It is a revolutionary surface treatment solution that combines functionality and aesthetics.

[0010] When the mixing equipment agitates the mixture, two transmission motors work in tandem. One precisely drives the agitator shaft at high speed, generating powerful vortexes on its external agitator blocks, effectively breaking up material agglomerates and enhancing mixing uniformity. Simultaneously, the other, through a precision gear train, drives the transmission base in steady rotation, driving the agitator side column and its specially designed external auxiliary blocks in countercurrent flow, creating a three-dimensional intersecting mixing shear field with the main agitator shaft. This dual agitation mechanism not only significantly improves mixing efficiency but also effectively prevents material stratification and sedimentation, ensuring nano-scale dispersion of the mixture. As the material enters the mixing chamber through the feed port, an intelligently controlled transmission cylinder, driven by a high-precision piston rod, reciprocates a Teflon-coated pusher plate, thoroughly removing any residual material from the inner wall of the feed barrel. This, combined with a wear-resistant cleaning scraper driven by the transmission base, creates a dual cleaning system that not only ensures absolute precision in the formulation but also prevents cross-contamination. The integrated design of the rotary cleaning mechanism and the feed system significantly reduces the need for manual cleaning, enabling efficient, energy-efficient, and precise intelligent mixing production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0012] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0013] In the attached figure: Figure 1 It is a production process flow chart of an embodiment of the present invention.

[0014] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the mixing equipment for electroplating silver paint according to an embodiment of the present invention.

[0015] Figure 3 The present invention is a schematic diagram of a mixing box structure of a mixing device for silver plating and baking varnish according to an embodiment of the present invention.

[0016] Figure 4 The present invention is a schematic diagram of a fixed top plate structure of a mixing device for electroplating silver paint according to an embodiment of the present invention.

[0017] Figure 5 It is a schematic structural diagram of a transmission seat of a mixing device for electroplating silver paint according to an embodiment of the present invention.

[0018] Figure 6 The present invention is a schematic diagram of a mixing device and a stirring shaft structure of a mixing device for silver plating and baking varnish according to an embodiment of the present invention.

[0019] Figure 7The present invention is a schematic diagram of a cleaning scraper structure of a mixing device for silver plating paint according to an embodiment of the present invention.

[0020] Figure 8 It is a schematic diagram of the disassembled structure of the feeding barrel of the mixing equipment for electroplating silver baking paint according to an embodiment of the present invention.

[0021] In the figure, the corresponding relationship between component names and drawing numbers is as follows: 1. Mixing box; 101. Support frame; 102. Support column; 103. Fixed base; 2. Fixed top plate; 201. Mounting seat; 202. Fixed seat; 203. Drive motor; 204. Stirring shaft; 205. Stirring block; 206. Drive seat; 207. Cleaning scraper; 208. Stirring side column; 209. Auxiliary block; 3. Feed barrel; 301. Mounting bracket; 302. Drive cylinder; 303. Push plate; 304. Feed port. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] Example: Please refer to Figures 1 to 8 As shown: The invention provides an electroplating silver baking varnish and a production process thereof. The electroplating silver baking varnish comprises the following raw materials in parts by weight: 66 parts of 6620 modified silicone resin, 2 parts of CAB, 1.8 parts of 167 amino resin, 7 parts of electroplating silver powder, 15 parts of butyl acetate, 0.2 parts of a leveling agent, 3 parts of an adhesion promoter, 4 parts of PMA, and 1 part of cyclohexanone.

[0024] 2. A production process for electroplating silver paint, characterized in that the production process comprises the following steps: 1) Prepare 20% CAB slurry: Mix 2 parts CAB and 8 parts butyl acetate and stir until evenly dispersed. 2) Prepare silver paste: Mix 7 parts of electroplated silver powder with 7 parts of butyl acetate. 3) Take 10 parts of 20% CAB paste and 14 parts of electroplated silver powder paste and mix well. 4) Add 66 parts of 6620 modified silicone resin and 1.8 parts of 167 amino resin to the mixture of 10 parts of 20% CAB paste and 14 parts of electroplated silver powder paste and mix well. 5) Then add 0.2 parts of leveling agent and 3 parts of adhesion promoter and mix well; 6) Finally, add 4 parts of PMA solvent and 1 part of cyclohexanone solvent to adjust the viscosity to 65 ku, and stir evenly; 7) Quality inspection, packaging and storage.

[0025] Wherein, the mixing device in step 3) comprises a mixing box 1, the bottom of the mixing box 1 is provided with a discharge port; a fixed top plate 2 is fixedly installed on the top of the mixing box 1; a feeding cylinder 3 is fixedly installed on the top of the fixed top plate 2 in a symmetrical manner; the mixing box 1 further comprises a support frame 101 fixedly installed on the outside of the mixing box 1; a support column 102, which is in the shape of an L-shaped column structure, is fixedly installed on the outside of the support frame 101 in a ring array; and a fixed base 103 is fixedly installed on the bottom of the support column 102.

[0026] Wherein, the mixing device comprises a fixed top plate 2, which further comprises a mounting seat 201 fixedly installed on the top of the fixed top plate 2; a fixed seat 202 fixedly installed on the top of the mounting seat 201; two transmission motors 203 fixedly installed on the top of the fixed seat 202 in a symmetrical manner; a stirring shaft 204 rotating on the bottom of the fixed seat 202; a stirring block 205 integrally provided on the outside of the stirring shaft 204; the stirring shaft 204 is transmissionally connected between the top of the stirring shaft 204 and the shaft of one of the transmission motors 203; a transmission seat 206 rotating in the middle of the mounting seat 201; a transmission gear fixedly installed on the top of the transmission seat 206, the transmission gear of the transmission seat 206 being transmissionally connected with the shaft of the other transmission motor 203 through a gear; four cleaning scrapers 207 integrally provided on the bottom of the transmission seat 206 in a ring array; four stirring side columns 208 integrally provided on the bottom of the transmission seat 206 in a cross shape; and an auxiliary block 209 integrally provided on both sides of the stirring side column 208.

[0027] Wherein, the mixing device comprises a feeding cylinder 3, which further comprises a mounting bracket 301 fixedly installed on the top of the feeding cylinder 3; a transmission cylinder 302 fixedly installed in the middle of the mounting bracket 301; a pushing plate 303 sliding in the inside of the feeding cylinder 3; the piston rod of the transmission cylinder 302 is transmissionally connected with the top of the pushing plate 303; and a feeding port 304 is provided on one side of the feeding cylinder 3.

[0028] The specific usage and function of this embodiment: In the present invention, in the preparation process of electroplated silver baking paint, 20 parts of CAB and 80 parts of butyl acetate are preliminarily fused to form CAB paste, 1001 electroplated silver powder and butyl acetate are mixed in a mass ratio of 1:1, and stirred until the silver powder is completely wetted to form silver powder paste, and then 10 parts of CAB paste and 14 parts of silver powder paste are taken, poured into a mixing device through the feed port 304 of the feed barrel 3 for mixing and stirring, and then 66 parts of modified electroplated silver resin and 1.8 parts of 167 amino resin are poured, and stirred again through the mixing device, and then 0.2 parts of leveling agent and 3 parts of adhesion promoter are added in sequence, and stirring is continued until completely dispersed; finally, 4 parts of PMA solvent and 1 part of cyclohexanone solvent are added, the viscosity of the system is adjusted to 65ku, and stirred evenly to complete the mixed preparation of the paint.

[0029] When the mixing equipment stirs the mixed slurry, by starting the two transmission motors 203, one transmission motor 203 will drive the stirring shaft 204 to rotate, so that the stirring block 205 outside the stirring shaft 204 can stir the mixed slurry, and then the other transmission motor 203 will drive the transmission seat 206 to rotate through the gear and the teeth of the transmission seat 206, and the transmission seat 206 will drive the stirring side column 208 to rotate, and the auxiliary block 209 outside the stirring side column 208 will cooperate with the stirring block 205 to mix and stir, so that the mixing efficiency can be effectively improved through the double stirring of the stirring side column 208 and the stirring shaft 204.

[0030] When the material enters the mixing box 1 through the feed port 304 for mixing, the transmission cylinder 302 can be started, and the transmission cylinder 302 will drive the push plate 303 to move through the piston rod, so that it can push the material adhered to the inner wall of the feed barrel 3 to the bottom of the feed barrel 3. During the rotation of the transmission seat 206, the cleaning scraper 207 will be driven to rotate, and the cleaning scraper 207 will clean the surface of the push plate 303, so that the material entering the mixing box 1 will not be reduced, ensuring that the material ratio is sufficient.

Claims

1. An electroplated silver paint, characterized in that The invention comprises the following raw materials in parts by weight: 65-67 parts of modified silicone resin, 1-3 parts of CAB, 1.7-1.9 parts of amino resin, 6-8 parts of electroplated silver powder, 12-17 parts of butyl acetate, 0.1-0.3 parts of leveling agent, 2-4 parts of adhesion promoter, 3-5 parts of PMA and 0.5-1.5 parts of cyclohexanone.

2. The electroplated silver baking varnish according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 66 parts of modified silicone resin, 2 parts of CAB, 1.8 parts of amino resin, 7 parts of electroplated silver powder, 15 parts of butyl acetate, 0.2 parts of leveling agent, 3 parts of adhesion promoter, 4 parts of PMA and 1 part of cyclohexanone.

3. The electroplated silver baking varnish according to claim 2, characterized in that: The production process includes the following steps: 1) Prepare 20% CAB slurry: Mix 2 parts CAB and 8 parts butyl acetate and stir until evenly dispersed. 2) Prepare silver paste: Mix 7 parts of electroplated silver powder with 7 parts of butyl acetate. 3) Take 10 parts of 20% CAB paste and 14 parts of electroplated silver powder paste and mix well. 4) Add 66 parts of 6620 modified silicone resin and 1.8 parts of 167 amino resin to the mixture of 10 parts of 20% CAB paste and 14 parts of electroplated silver powder paste and mix well. 5) Then add 0.2 parts of leveling agent and 3 parts of adhesion promoter and mix well; 6) Finally, add 4 parts of PMA solvent and 1 part of cyclohexanone solvent to adjust the viscosity to 65ku and stir evenly. 7) Quality inspection, packaging and storage.

4. The electroplated silver baking varnish according to claim 1 or 2, characterized in that: The modified silicone resin is 6620 modified silicone resin, and the amino resin is 167 amino resin.

5. The electroplated silver baking varnish according to claim 3, characterized in that: The mixing device in step 3) comprises a mixing box (1), wherein a discharge port is provided at the bottom of the mixing box (1); a fixed top plate (2) is fixedly installed on the top of the mixing box (1); a feed barrel (3) is fixedly installed symmetrically on the top of the fixed top plate (2); the mixing box (1) further comprises: a support frame (101), wherein the support frame (101) is fixedly installed on the outside of the mixing box (1); a support column (102), wherein the shape of the support column (102) is an L-shaped column structure, and the number of the support columns (102) is set to six, and the support columns (102) are fixedly installed on the outside of the support frame (101) in a ring array; and a fixed base (103), wherein the fixed base (103) is fixedly installed on the bottom of the support column (102).

6. The electroplated silver baking varnish according to claim 5, characterized in that: The fixed top plate (2) further comprises: a mounting seat (201), the mounting seat (201) being fixedly mounted on the top of the fixed top plate (2); a fixing seat (202), the fixing seat (202) being fixedly mounted on the top of the mounting seat (201); and a transmission motor (203), the number of the transmission motors (203) being set to two, and the transmission motors (203) being symmetrically fixedly mounted on the top of the fixing seat (202).

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