High-adhesive-force anticorrosive primer for aluminum surface and production process of high-adhesive-force anticorrosive primer
By employing a multi-stage process of pre-dispersion, pre-mixing, and final mixing, along with a temperature-controlled jacket design, the problems of easy solidification and uneven mixing of the anti-corrosion primer on the aluminum surface were solved, achieving efficient and uniform mixing and improving production efficiency and adhesion.
Patent Information
- Application Number
- CN202610034950.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-12
- Publication Date
- 2026-04-03
AI Technical Summary
In the existing aluminum surface anti-corrosion primer formulation process, the addition of toughening agents and the increase in resin content make the primer prone to solidification and difficult to spread during stirring. This increases the working pressure and time of the mixing device, reduces production efficiency, and the one-time addition of materials leads to uneven mixing.
A multi-stage, continuous process of pre-dispersion, pre-mixing, and final mixing is adopted. Through independent solid-phase material mixing funnels, liquid-phase material mixing funnels, and pre-mixing pipelines, the materials are first metered and initially stirred, then initially fused in the pipelines, and finally enter the main tank for deep homogenization, reducing the load on the main mixing unit. The pre-mixing components are used for initial shearing and conveying mixing, and the temperature is controlled by a temperature control jacket. An annular inclined surface is designed to promote uniform mixing.
It shortens mixing time, reduces stirring torque, improves production efficiency, enhances the adhesion and anti-corrosion performance of the primer, ensures uniform mixing of materials, and reduces equipment energy consumption.
Smart Images
Figure CN121775712A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of aluminum surface treatment technology, and in particular to a high-adhesion anti-corrosion primer for aluminum surfaces and its production process. Background Technology
[0002] In modern aluminum processing, in order to improve the corrosion resistance of aluminum, anti-corrosion primer is usually applied to the surface of the aluminum. At present, anti-corrosion primers are mostly made of polymer resin as raw material, supplemented with pigments, accelerators and toughening agents and other ingredients.
[0003] To improve the adhesion of primers to aluminum surfaces, current aluminum surface primers often incorporate toughening agents. However, this also leads to the primer's tendency to solidify. Consequently, toughening agents and resin proportions are added during primer formulation. While the addition of toughening agents and the increased resin proportion strengthen the primer's coagulation force, they also make it difficult to stir and spread. During formulation, the mixing device needs to increase torque, thereby increasing the shear force and prolonging the mixing time, thus reducing production efficiency. Furthermore, current anti-corrosion primer formulations often involve adding all materials to the mixing equipment simultaneously. While this saves operational steps, it prevents the materials from being mixed evenly and continuously, undoubtedly increasing the workload of the mixing device. Therefore, this paper addresses these issues through in-depth research. Summary of the Invention
[0004] The purpose of this invention is to solve the aforementioned problems by designing a high-adhesion anti-corrosion primer for aluminum surfaces and its production process. This addresses the issue that existing aluminum surface primers often include toughening agents to improve adhesion, but this also leads to easy solidification. Consequently, toughening agents and increased resin content are added during primer formulation. However, while these additions strengthen the primer's coagulation force, they also make it difficult to stir and spread. During formulation, the mixing device needs to increase torque, thereby increasing the shear force and prolonging the mixing time, reducing production efficiency. Furthermore, current anti-corrosion primer formulations often involve adding all materials to the mixing equipment simultaneously. While this saves steps, it prevents uniform and continuous mixing, undoubtedly increasing the workload on the mixing device. The technical solution of the present invention to achieve the above objectives is as follows: a production process for a high-adhesion anti-corrosion primer for aluminum surfaces, comprising a base, a main support provided on the left side of the top of the base, a secondary support provided at the center of the top of the base, a material tank support provided on the right side of the top of the base, a mixing structure provided at the top of the main support, a storage and conveying structure provided at the top of the secondary support, and a pre-mixing structure provided at the top of the material tank support. The premixing structure includes: a solid phase material mixing funnel, a solid phase material cover, a liquid phase material mixing funnel, a liquid phase material cover, a linkage gearbox, a first motor, a solid phase mixing conveying assembly, a liquid phase mixing conveying assembly, and a premixing assembly; The solid phase material mixing funnel is installed on the top right side of the material tank support. The solid phase material cover is installed on the top of the solid phase material mixing funnel via a flange. The liquid phase material mixing funnel is installed on the top left side of the material tank support. The liquid phase material cover is installed on the top of the liquid phase material mixing funnel via a flange. The linkage gearbox is installed on the top of both the solid phase material cover and the liquid phase material cover. The first motor is installed on the top of the linkage gearbox, and its drive end is connected to the linkage gearbox. The solid phase mixing conveying assembly is connected to the solid phase material mixing funnel. The liquid phase material mixing conveying assembly is connected to the liquid phase material mixing funnel. The premixing assembly is installed at the bottom of both the solid phase mixing funnel and the liquid phase mixing funnel via a transfer pipe.
[0005] Preferably, the solid phase mixing and conveying assembly includes: a solid phase solenoid valve, a solid phase metering pump, a solid phase stirring shaft, a solid phase scraper, and several solid phase stirring rods; The solid phase solenoid valve is fitted below the solid phase material mixing funnel. The solid phase metering pump is connected to the outlet of the solid phase material mixing funnel. The solid phase stirring shaft is movably inserted through the center of the top of the solid phase material cover via a bearing, and the solid phase stirring shaft is movably embedded inside the solid phase mixing funnel. The solid phase scraper is fitted on the outside of the solid phase stirring shaft via a frame. A plurality of solid phase stirring rods are arranged in a horizontal array and connected to the solid phase stirring shaft.
[0006] Preferably, the liquid phase mixing and conveying assembly includes: a liquid phase solenoid valve, a liquid phase metering pump, a liquid phase stirring shaft, a liquid phase scraper, and several liquid phase stirring rods; The liquid phase solenoid valve is fitted below the liquid phase material mixing funnel. The liquid phase metering pump is connected to the outlet of the liquid phase material mixing funnel. The liquid phase stirring shaft is movably inserted through the center of the top of the liquid phase material cover via a bearing, and the liquid phase stirring shaft is movably embedded inside the liquid phase material mixing funnel. The liquid phase scraper is fitted on the outside of the liquid phase stirring shaft via a frame. A plurality of liquid phase stirring rods are arranged in a horizontal array and connected to the liquid phase stirring shaft.
[0007] Preferably, the premixing assembly includes: a premixing pipe, a second motor, a premixing stirring shaft, a plurality of premixing stirring rods, and a plurality of conveying spiral blades; The premixing pipeline is horizontally installed at the bottom of the solid-phase mixing funnel and the liquid-phase mixing funnel via a transfer pipe, and the premixing pipeline is connected to the solid-phase metering pump and the liquid-phase metering pump respectively via the transfer pipe. The second motor is installed on the right end face of the premixing pipeline. The premixing stirring shaft is movably embedded in the center of the premixing pipeline through a bearing. A plurality of premixing stirring rods and a plurality of conveying spiral blades are alternately arrayed on the outside of the premixing stirring shaft.
[0008] Preferably, the storage and conveying structure includes: a pre-storage tank, a discharge bend, a discharge solenoid valve, a high-pressure pump, a feeding bend, and a feeding solenoid valve; The pre-storage tank is installed at the top of the auxiliary support. The discharge bend is embedded in the lower left side of the pre-storage tank. The discharge solenoid valve is installed at the inlet of the discharge bend. The input end of the high-pressure pump is installed at the outlet of the discharge bend. The inlet of the feeding bend is connected to the output end of the high-pressure pump. The feeding solenoid valve is installed at the outlet of the feeding bend.
[0009] Preferably, the mixing structure includes: a mixing tank, a tank cover, a third motor, a general mixing shaft, an inner wall scraper, several general mixing rods, mixing blades, a discharge pipe, and a discharge solenoid valve; The mixing tank is installed on the top of the main support and connected to the upper right side of the feeding bend. The tank cover is installed on the top of the mixing tank via a flange. The third motor is installed at the center of the top of the tank cover via a support. The mixing shaft is movably embedded in the center of the inside of the tank cover via a bearing and is connected to the drive end of the third motor. The inner wall scraper is fitted on the upper outside of the mixing shaft via a frame. Several mixing rods are arranged horizontally in an array and connected to the mixing shaft. The mixing blades are installed at the bottom of the mixing shaft. The discharge pipe is installed through the bottom of the mixing tank and the discharge solenoid valve is installed at the discharge port of the discharge pipe.
[0010] Preferably, a feeding bend is provided through the rear side of both the solid phase material mixing funnel and the liquid phase material mixing funnel, and a pump is installed at the bottom end of the feeding bend.
[0011] Preferably, the dimensions of several of the conveying spiral blades are matched with the inner diameter of the premixed pipe, and a first temperature control jacket is fitted on the outer side of the premixed pipe.
[0012] Preferably, the mixing tank is fitted with a second temperature control jacket on its outer side, and the mixing tank is machined with an annular inclined surface inside.
[0013] Preferably, it includes the following components: Bisphenol A type epoxy resin 40% - 55%; Zinc phosphate 5% - 10%; Titanium dioxide 2% - 5%; Mica powder 8% - 12%; Barium sulfate 5% - 8%; Solvent 15% - 20%; Toughening agent 3% - 6%; Modified polyester resin 4% - 8%; Dispersant 0.5% - 1.2%.
[0014] The high-adhesion anti-corrosion primer for aluminum surfaces produced using the technical solution of this invention and its production process, through the setting of independent solid-phase material mixing funnels, liquid-phase material mixing funnels, premixing pipelines, and mixing tanks, innovates the traditional one-time feeding and single-tank strong mixing mode into a multi-stage, continuous process of "pre-dispersion-premixing-final mixing". Solid and liquid materials can be metered and initially stirred separately, then initially fused in the pipeline, and finally deeply homogenized in the main tank. This greatly reduces the workload of the main mixing device and solves the problems of uneven mixing and excessive shear force requirements caused by the one-time addition of high-viscosity materials. Through the premixing stirring rods and conveying spiral blades in the premixing component, it is possible to achieve... Before the materials enter the main tank, they undergo effective shearing and conveying mixing, achieving initial homogenization. This significantly shortens the mixing time in the main mixing tank and reduces the required stirring torque, thereby improving production efficiency and reducing equipment energy consumption. By installing a first and a second temperature control jacket on the premixing pipe and the main mixing tank, the temperature during the mixing process can be precisely controlled, effectively delaying or adjusting the curing speed of the high resin and toughening agent system, creating better conditions for thorough mixing, and ultimately improving the adhesion and corrosion resistance of the primer. The annular inclined surface design inside the mixing tank facilitates the material to gather towards the center, forming a more effective circulating flow field in conjunction with the stirring blades, further eliminating mixing dead zones. Attached Figure Description
[0015] Figure 1 This is a front-view three-dimensional structural schematic diagram of the production process of the high-adhesion anti-corrosion primer for aluminum surfaces described in this invention.
[0016] Figure 2 This is a schematic diagram of the main structure of the production process of the high adhesion anti-corrosion primer for aluminum surfaces described in this invention.
[0017] Figure 3 This is a rear view structural schematic diagram of the production process of the high adhesion anti-corrosion primer for aluminum surfaces described in this invention.
[0018] Figure 4 This is a right-side structural schematic diagram of the production process of the high-adhesion anti-corrosion primer for aluminum surfaces described in this invention.
[0019] Figure 5 This is a partial cross-sectional view of the production process of the high-adhesion anti-corrosion primer for aluminum surfaces described in this invention.
[0020] Figure 6 This is a first partially enlarged structural schematic diagram of the production process of the high-adhesion anti-corrosion primer for aluminum surfaces described in this invention.
[0021] Figure 7 This is a second partially enlarged structural schematic diagram of the production process of the high-adhesion anti-corrosion primer for aluminum surfaces described in this invention.
[0022] In the diagram: 1. Base; 2. Main support; 3. Secondary support; 4. Tank support; 5. Solid phase mixing funnel; 6. Solid phase cover; 7. Liquid phase mixing funnel; 8. Liquid phase cover; 9. Linkage gearbox; 10. First motor; 11. Solid phase solenoid valve; 12. Solid phase metering pump; 13. Solid phase stirring shaft; 14. Solid phase scraper; 15. Several solid phase stirring rods; 16. Liquid phase solenoid valve; 17. Liquid phase metering pump; 18. Liquid phase stirring shaft; 19. Liquid phase scraper; 20. Several liquid phase stirring rods; 21. Premixing pipe; 22. Second motor; 23. 24. Premixing stirring shaft, 25. Premixing stirring rod, 26. Several conveying spiral blades, 27. Pre-storage tank, 28. Discharge bend, 29. Discharge solenoid valve, 30. High-pressure pump, 31. Feeding bend, 32. Feeding solenoid valve, 33. Mixing tank, 34. Tank cover, 35. Third motor, 36. Main mixing shaft, 37. Inner wall scraper, 38. Main mixing rod, 39. Stirring blade, 40. Discharge pipe, 41. Discharge solenoid valve, 42. Feeding bend, 43. Pump, 44. First temperature control jacket, 45. Second temperature control jacket, 46. Annular inclined plane. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-7 The image shows a high-adhesion anti-corrosion primer for aluminum surfaces and its production process.
[0024] Those skilled in the art should connect all electrical components in this case to their compatible power supplies via wires. Appropriate controllers should be selected based on the actual situation to meet control requirements. The specific connections and control sequence should refer to the working principle described below, which outlines the sequential operation of each electrical component. The detailed connection methods are well-known in the art. The following primarily describes the working principle and process, without further explanation of electrical control. (Those skilled in the art should connect the components in this case sequentially. The specific connections and operating sequence should refer to the working principle described below. The detailed connection methods are well-known in the art. The following primarily describes the working principle and process.) Example 1: Production process of high adhesion anti-corrosion primer for aluminum surface, including base 1, main support 2 on the left side of the top of base 1, secondary support 3 at the center of the top of base 1, material tank support 4 on the right side of the top of base 1, mixing structure at the top of main support 2, storage and conveying structure at the top of secondary support 3, and premixing structure at the top of material tank support 4. The premixing structure includes: a solid phase material mixing funnel 5, a solid phase material cover 6, a liquid phase material mixing funnel 7, a liquid phase material cover 8, a linkage gearbox 9, a first motor 10, a solid phase mixing conveying assembly, a liquid phase mixing conveying assembly, and a premixing assembly. A solid phase material mixing funnel 5 is installed on the top right side of the material tank support 4. A solid phase material cover 6 is installed on the top of the solid phase material mixing funnel 5 via a flange. A liquid phase material mixing funnel 7 is installed on the top left side of the material tank support 4. A liquid phase material cover 8 is installed on the top of the liquid phase material mixing funnel 7 via a flange. A linkage gearbox 9 is installed on the top of both the solid phase material cover 6 and the liquid phase material cover 8. A first motor 10 is installed on the top of the linkage gearbox 9, and its drive end is connected to the linkage gearbox 9. A solid phase mixing conveying assembly is connected to the solid phase material mixing funnel 5. A liquid phase material mixing conveying assembly is connected to the liquid phase material mixing funnel 7. A premixing assembly is installed at the bottom of both the solid phase mixing funnel and the liquid phase mixing funnel via a transfer pipe.
[0025] Specifically, the solid phase mixing and conveying assembly includes: a solid phase solenoid valve 11, a solid phase metering pump 12, a solid phase stirring shaft 13, a solid phase scraper 14, and several solid phase stirring rods 15. A solid phase solenoid valve 11 is fitted below the solid phase material mixing funnel 5. A solid phase metering pump 12 is connected to the outlet of the solid phase material mixing funnel 5. A solid phase stirring shaft 13 is movably inserted through the center of the top of the solid phase material cover 6 via a bearing. The solid phase stirring shaft 13 is also movably embedded inside the solid phase mixing funnel. A solid phase scraper 14 is fitted on the outside of the solid phase stirring shaft 13 via a frame. Several solid phase stirring rods 15 are arranged horizontally in an array and connected to the solid phase stirring shaft 13.
[0026] Specifically, the liquid phase mixing and conveying assembly includes: a liquid phase solenoid valve 16, a liquid phase metering pump 17, a liquid phase stirring shaft 18, a liquid phase scraper 19, and several liquid phase stirring rods 20. A liquid phase solenoid valve 16 is fitted below the liquid phase material mixing funnel 7. A liquid phase metering pump 17 is connected to the outlet of the liquid phase material mixing funnel 7. A liquid phase stirring shaft 18 is movably inserted through the center of the top of the liquid phase material cover 8 via a bearing, and the liquid phase stirring shaft 18 is movably embedded inside the liquid phase material mixing funnel 7. A liquid phase scraper 19 is fitted on the outside of the liquid phase stirring shaft 18 via a frame. Several liquid phase stirring rods 20 are arranged horizontally in an array and connected to the liquid phase stirring shaft 18.
[0027] Specifically, the premixing assembly includes: a premixing pipe 21, a second motor 22, a premixing stirring shaft 23, several premixing stirring rods 24, and several conveying spiral blades 25; The premixing pipe 21 is horizontally installed at the bottom of the solid phase mixing funnel and the liquid phase mixing funnel via a transfer pipe. The premixing pipe 21 is connected to the solid phase metering pump 12 and the liquid phase metering pump 17 via the transfer pipe. The second motor 22 is installed on the right end face of the premixing pipe 21. The premixing stirring shaft is movably embedded in the center of the premixing pipe 21 via a bearing. Several premixing stirring rods and several conveying spiral blades 25 are alternately arrayed on the outside of the premixing stirring shaft.
[0028] It should be noted that both the solid-phase mixing funnel 5 and the liquid-phase mixing funnel 7 are supported and installed by the tank bracket 4, and are respectively fixed to the solid-phase cover 6 and the liquid-phase cover 8 via flanges, forming material storage funnels. These funnels pre-separate and mix the solid and liquid materials. Different specifications of solid materials are mixed with an appropriate amount of liquid to form a slurry, which is then fed into the solid-phase mixing funnel 5. Subsequently, different specifications of liquid materials are fed into the liquid-phase mixing funnel 7. The first motor 10 drives the linkage gearbox 9, which transmits the absorbed power through a complete transmission, driving the solid-phase stirring shaft. The solid-phase stirring shaft 13 rotates simultaneously with the liquid-phase stirring shaft 18. Under the rotation of the solid-phase stirring shaft 13 and the liquid-phase stirring shaft 18, the solid-phase scraper 14, several solid-phase stirring rods 15, liquid-phase scraper 19, and several liquid-phase stirring rods 20 are driven to rotate to stir and mix the solid and liquid materials inside the solid-phase mixing funnel 5 and the liquid-phase mixing funnel 7. The solid-phase scraper 14 and the liquid-phase scraper 19 follow the rotation to scrape and clean the inner wall to prevent the material from sticking to the inner wall. By stirring and mixing the solid and liquid materials separately in advance, the different materials can be fully mixed before fusion. This provides the basic conditions for pre-mixing the product. After the solid and liquid materials are pre-mixed separately, the solid phase solenoid valve 11 and the liquid phase solenoid valve 16 control the switch to continue to extract the materials in a quantitative proportion by the solid phase metering pump 12 and the liquid phase metering pump 17, respectively, and deliver them into the premixing pipeline 21. At this time, the second motor 22 is started, which drives the premixing stirring shaft 23 inside the premixing pipeline 21 to rotate, thereby driving several premixing stirring rods 24 and several conveying spiral blades 25 to rotate. When the material enters the premixing pipeline, the rotating conveying spiral blades first mix the solid material with the liquid phase. The material is conveyed and pushed to contact and mix, pushing the mixed material forward to the premixing agitator. The premixing agitator performs preliminary deep mixing of the material. Then, the next-stage conveying spiral blades convey and push the material into the next-stage premixing agitator for further mixing. That is, the material is conveyed forward, repeating the two steps of conveying and mixing in a gradual manner. This allows the solid and liquid phase materials to be premixed inside the premixing pipe 21, reducing the workload for the subsequent final mixing operation and increasing the preliminary coarse mixing of the solid and liquid phase materials, so that the final product meets the production standards.
[0029] Specifically, the storage and conveying structure includes: a pre-storage tank 26, a discharge bend 27, a discharge solenoid valve 28, a high-pressure pump 29, a feeding bend 30, and a feeding solenoid valve 31. The pre-storage tank 26 is installed at the top of the auxiliary support 3 and is connected to the pre-mixing pipe 21 on the upper right side. The discharge bend 27 is embedded in the lower left side of the pre-storage tank 26. The discharge solenoid valve 28 is installed at the inlet of the discharge bend 27. The input end of the high-pressure pump 29 is installed at the outlet of the discharge bend 27. The inlet of the feeding bend 30 is connected to the output end of the high-pressure pump 29. The feeding solenoid valve 31 is installed at the outlet of the feeding bend 30.
[0030] It should be noted that the pre-storage tank 26 is connected to the pre-mixing pipeline. While the pre-mixing pipeline pre-mixes the solid and liquid materials, the internal conveying spiral not only conveys and stirs the mixed materials but also conveys the pre-mixed and initially formed mixture to the pre-storage tank 26. The pre-storage tank 26 collects and stores the pre-mixed materials. According to the subsequent final mixing needs, the materials are taken out through the discharge bend 27. When the materials are taken out, the discharge bend 27 is controlled by the discharge solenoid valve 28. When the switch is opened, the high-pressure pump 29 is started. The high-pressure pump 29 is connected to the discharge port of the discharge bend 27. Under the high-pressure extraction action of the high-pressure pump 29, the materials inside the pre-storage tank 26 are extracted and the high-pressure pump 29 pushes the materials along the discharge bend 27 into the feeding bend 30. The materials flow through the feeding bend 30 into the mixing structure, where the mixing structure performs the final mixing operation to achieve the final form of the mixture.
[0031] Specifically, the mixing structure includes: a mixing tank 32, a tank cover 33, a third motor 34, a general mixing shaft 35, an inner wall scraper 36, several general mixing rods 37, mixing blades 38, a discharge pipe 39, and a discharge solenoid valve 40. The mixing tank 32 is installed on the top of the main support 2 and connected to the upper right side of the feeding bend 30. The tank cover 33 is installed on the top of the mixing tank 32 via a flange. The third motor 34 is installed at the center of the top of the tank cover 33 via a support. The mixing shaft 35 is movably embedded in the center of the inside of the tank cover 33 via a bearing and is connected to the drive end of the third motor 34. The inner wall scraper 36 is mounted on the upper outside of the mixing shaft 35 via a frame. Several mixing rods 37 are arranged horizontally in an array and connected to the mixing shaft 35. The mixing blades 38 are installed at the bottom of the mixing shaft 35. The discharge pipe 39 is installed through the bottom of the mixing tank 32. The discharge solenoid valve 40 is installed at the discharge port of the discharge pipe 39.
[0032] It should be noted that when the premixed materials are drawn from the pre-storage tank 26 and enter the mixing tank 32, and are injected into the mixing tank 32 by the high-pressure pump 29, the premixed materials are mixed again under the high-pressure injection pressure. After the premixed materials are injected into the mixing tank 32, the third motor 34 is started to operate, driving the main mixing shaft 35 to rotate, thereby driving the inner wall scraper 36, the main mixing rod 37 and the mixing blades 38 to rotate, and finally mixing the materials. At the same time as the main mixing shaft 35 rotates, the inner wall scraper 36 scrapes and cleans the inner wall of the mixing tank 32, causing the materials adhering to the inner wall to fall off, avoiding the accumulation of materials and the reduction of production efficiency during mixing. After the final mixing of the materials is completed, the discharge solenoid valve 40 can be controlled to allow the materials inside the mixing tank 32 to flow vertically outward along the discharge pipe 39 and finally take out the finished material.
[0033] Specifically, a feeding bend 41 is provided through the upper rear side of both the solid phase material mixing funnel 5 and the liquid phase material mixing funnel 7. A pump 42 is installed at the bottom of the feeding bend 41. The pump 42 extracts the solid and liquid materials and allows them to flow through the feeding bend 41 into the solid phase material mixing funnel 5 and the liquid phase material mixing funnel 7, respectively.
[0034] Specifically, the dimensions of several conveying spiral blades 25 are matched with the inner diameter of the premixing pipe 21. When the conveying spiral blades rotate and push the material, they can not only push the material forward, but also, in accordance with the inner diameter of the premixing pipe 21, scrape the material adhering to the inner wall of the premixing pipe 21, so that the material does not stick together, clean the inner wall, and prevent the premixing pipe 21 from becoming blocked.
[0035] Specifically, a first temperature control jacket 43 is fitted on the outside of the premixing pipe 21, which can provide the required optimal temperature when the solid and liquid materials are premixed, so that the materials can be initially and fully mixed.
[0036] Specifically, the mixing tank 32 is fitted with a second temperature control jacket 44, which can provide the optimal temperature when the premixed materials are finally mixed, so that the materials can reach the optimal mixing state at this temperature and form the best finished material.
[0037] Specifically, the mixing tank 32 has an annular inclined surface 45 inside. The annular curved surface provides natural sliding conditions when the material is taken out after the final mixing is completed, and avoids the material from accumulating in the corners of the mixing tank 32, which would affect the production quality.
[0038] Example 2: A high-adhesion anti-corrosion primer for aluminum surfaces, comprising the following components: Epoxy resin: 40% - 55% bisphenol A type epoxy resin; Rust-preventive pigment: 5% - 10% zinc phosphate; Coloring pigment: 2% - 5% titanium dioxide; Flaky filler: 8% - 12% mica powder; Functional filler: Barium sulfate 5% - 8%; Solvents: xylene and n-butanol in a 2:1 ratio, 15% - 20%; Toughening agent: 3% - 6% polyamide wax powder or carboxyl-terminated butadiene-acrylonitrile rubber modifier; Modified polyester resin: 4% - 8% hydroxyl acrylic resin or flexible polyester resin; Dispersant: 0.5% - 1.2% of high molecular weight block copolymer dispersants.
[0039] Example 3: Production process of high adhesion anti-corrosion primer for aluminum surfaces, including the following steps: Step 1: Raw material preparation: Prepare the raw materials required for the coating, including epoxy resin, pigments, fillers, solvents and additives, including but not limited to toughening agents, modified polyester resins and dispersants; Step 2, Pretreatment: Pretreatment of raw materials, including but not limited to filtration, drying, and grinding, to ensure the quality and suitability of the raw materials; Step 3, Formula Preparation: According to the product formula and specific requirements, mix the pretreated raw materials in proportion, and strictly control the proportion of raw materials and the mixing process; Step 4, Premixing: Add the raw materials to the solid phase mixing funnel and the liquid phase mixing funnel according to their phase properties. Then, send the various materials into the premixing pipeline through the solid phase mixing funnel and the liquid phase mixing funnel to complete the premixing of liquid and solid materials, thereby improving the mixing efficiency. Step 5, Mixing: Mixing is carried out by the drive unit on the mixing tank. In this process, the premixed materials, which are premixed with liquid and solid materials, are finally mixed and stirred to produce finished materials.
[0040] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.
Claims
1. A production process for a high-adhesion anti-corrosion primer for aluminum surfaces, comprising a base (1), characterized in that, The base (1) has a main support (2) on the left side of the top, a secondary support (3) at the center of the top of the base (1), a material tank support (4) on the right side of the top of the base (1), a mixing structure at the top of the main support (2), a storage and conveying structure at the top of the secondary support (3), and a pre-mixing structure at the top of the material tank support (4). The premixing structure includes: a solid phase material mixing funnel (5), a solid phase material cover (6), a liquid phase material mixing funnel (7), a liquid phase material cover (8), a linkage gearbox (9), a first motor (10), a solid phase mixing conveying assembly, a liquid phase mixing conveying assembly, and a premixing assembly; The solid phase material mixing funnel (5) is installed on the right side of the top of the material tank support (4). The solid phase material cover (6) is installed on the top of the solid phase material mixing funnel (5) through a flange. The liquid phase material mixing funnel (7) is installed on the left side of the top of the material tank support (4). The liquid phase material cover (8) is installed on the top of the liquid phase material mixing funnel (7) through a flange. The linkage gearbox (9) is installed on the top of the solid phase material cover (6) and the liquid phase material cover (8). The first motor (10) is installed on the top of the linkage gearbox (9) and its drive end is connected to the linkage gearbox (9). The solid phase mixing conveying assembly is connected to the solid phase material mixing funnel (5). The liquid phase material mixing conveying assembly is connected to the liquid phase material mixing funnel (7). The premixing assembly is installed on the bottom of the solid phase mixing funnel and the liquid phase mixing funnel through a transfer pipe.
2. The production process of the high-adhesion anti-corrosion primer for aluminum surfaces according to claim 1, characterized in that, The solid phase mixing and conveying assembly includes: a solid phase solenoid valve (11), a solid phase metering pump (12), a solid phase stirring shaft (13), a solid phase scraper (14), and several solid phase stirring rods (15). The solid phase solenoid valve (11) is fitted below the solid phase material mixing funnel (5). The solid phase metering pump (12) is connected to the outlet of the solid phase material mixing funnel (5). The solid phase stirring shaft (13) is movably inserted through the center of the top of the solid phase material cover (6) via a bearing. The solid phase stirring shaft (13) is movably embedded inside the solid phase mixing funnel. The solid phase scraper (14) is fitted outside the solid phase stirring shaft (13) via a frame. Several solid phase stirring rods are arranged horizontally in an array and connected to the solid phase stirring shaft (13).
3. The production process of the high-adhesion anti-corrosion primer for aluminum surfaces according to claim 1, characterized in that, The liquid phase mixing and conveying assembly includes: a liquid phase solenoid valve (16), a liquid phase metering pump (17), a liquid phase stirring shaft (18), a liquid phase scraper (19), and several liquid phase stirring rods (20). The liquid phase solenoid valve (16) is fitted below the liquid phase material mixing funnel (7), the liquid phase metering pump (17) is connected to the outlet of the liquid phase material mixing funnel (7), the liquid phase stirring shaft (18) is movably passed through the center of the top of the liquid phase material cover (8) through the bearing, and the liquid phase stirring shaft (18) is movably embedded inside the liquid phase material mixing funnel (7), the liquid phase scraper (19) is fitted on the outside of the liquid phase stirring shaft (18) through the frame, and a plurality of liquid phase stirring rods are horizontally arranged in an array and connected to the liquid phase stirring shaft (18).
4. The production process of the high-adhesion anti-corrosion primer for aluminum surfaces according to claim 2, characterized in that, The premixing assembly includes: a premixing pipe (21), a second motor (22), a premixing stirring shaft (23), a plurality of premixing stirring rods (24), and a plurality of conveying spiral blades (25); The premixing pipe (21) is horizontally installed at the bottom of the solid phase mixing funnel and the liquid phase mixing funnel via a transfer pipe. The premixing pipe (21) is connected to the solid phase metering pump (12) and the liquid phase metering pump (17) via a transfer pipe. The second motor (22) is installed on the right end face of the premixing pipe (21). The premixing stirring shaft is movably embedded in the center of the premixing pipe (21) via a bearing. A plurality of premixing stirring rods and a plurality of conveying spiral blades are alternately arrayed on the outside of the premixing stirring shaft.
5. The production process of the high-adhesion anti-corrosion primer for aluminum surfaces according to claim 1, characterized in that, The storage and conveying structure includes: a pre-storage tank (26), a discharge bend (27), a discharge solenoid valve (28), a high-pressure pump (29), a feeding bend (30), and a feeding solenoid valve (31). The pre-storage tank (26) is installed at the top of the auxiliary support (3). The discharge bend (27) is embedded in the lower left side of the pre-storage tank (26). The discharge solenoid valve (28) is installed at the inlet of the discharge bend (27). The input end of the high-pressure pump (29) is installed at the outlet of the discharge bend (27). The inlet of the feeding bend (30) is connected to the output end of the high-pressure pump (29). The feeding solenoid valve (31) is installed at the outlet of the feeding bend (30).
6. The production process of the high-adhesion anti-corrosion primer for aluminum surfaces according to claim 5, characterized in that, The mixing structure includes: a mixing tank (32), a tank cover (33), a third motor (34), a general mixing shaft (35), an inner wall scraper (36), several general mixing rods (37), mixing blades (38), a discharge pipe (39), and a discharge solenoid valve (40). The mixing tank (32) is installed on the top of the main support (2) and connected to the upper right side of the feeding bend (30). The tank cover (33) is installed on the top of the mixing tank (32) through a flange. The third motor (34) is installed at the center of the top of the tank cover (33) through a support. The mixing shaft (35) is movably embedded in the center of the inside of the tank cover (33) through a bearing and is connected to the drive end of the third motor (34). The inner wall scraper (36) is fitted on the upper outside of the mixing shaft (35) through a frame. Several mixing rods (37) are arranged horizontally and connected to the mixing shaft (35). The mixing blades (38) are installed at the bottom of the mixing shaft (35). The discharge pipe (39) is installed through the bottom of the mixing tank (32). The discharge solenoid valve (40) is installed at the discharge port of the discharge pipe (39).
7. The production process of the high-adhesion anti-corrosion primer for aluminum surfaces according to claim 1, characterized in that, Both the solid phase mixing funnel (5) and the liquid phase mixing funnel (7) are provided with a feeding bend (41) extending through their rear sides. A pump (42) is installed at the bottom of the feeding bend (41).
8. The production process of the high-adhesion anti-corrosion primer for aluminum surfaces according to claim 4, characterized in that, The dimensions of several of the conveying spiral blades are matched with the inner diameter of the premixed pipe (21), and a first temperature control jacket (43) is fitted on the outside of the premixed pipe (21).
9. The production process of the high-adhesion anti-corrosion primer for aluminum surfaces according to claim 6, characterized in that, The mixing tank (32) is fitted with a second temperature control jacket (44) on the outside, and the mixing tank (32) is machined with an annular inclined surface (45).
10. A high-adhesion anti-corrosion primer for aluminum surfaces, applied in the production process of the high-adhesion anti-corrosion primer for aluminum surfaces as described in any one of claims 1-9, characterized in that, Includes the following components: Bisphenol A type epoxy resin 40% - 55%; Zinc phosphate 5% - 10%; Titanium dioxide 2% - 5%; Mica powder 8% - 12%; Barium sulfate 5% - 8%; Solvent 15% - 20%; Toughening agent 3% - 6%; Modified polyester resin 4% - 8%; Dispersant 0.5% - 1.2%.