Production method of resin block

Abstract

The invention relates to the technical field of resin blocks, and discloses a production method of a resin block, which comprises the following steps: S1, burdening; s2, mixing; s3, heating and curing; s4, cooling; s5, demolding is conducted; s6, carrying out post-treatment; s7, quality inspection and testing; and S8, packaging and storing. By reasonably regulating and controlling mixing equipment, stirring time, rotating speed and the like, the mixing efficiency of resin powder and a curing agent can be improved, the production problem caused by non-uniformity of raw materials is avoided, the heating curing process and the cooling process are accurately controlled, optimization of curing time and temperature is ensured, and excessive curing or incomplete curing is avoided; according to the method, the controllability of the production process can be realized through definite operation steps and parameter control (such as heating temperature, mixing time and rotating speed), so that the stability of the product quality is ensured, and a strict quality inspection and recording system is provided, so that the product quality tracing becomes clearer, and the problems possibly occurring in the production can be conveniently analyzed and solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of resin blocks, and specifically relates to a production method of resin blocks. BACKGROUND

[0002] A resin block refers to a solid block-shaped object obtained by curing and molding based on resin materials such as epoxy resin, polyester resin, phenolic resin and the like. Resin blocks are widely used in many industries, including the manufacture of composite materials, sculpture, model making, art, electronic components and the like. Resin blocks usually have good mechanical properties, corrosion resistance and plasticity, and are suitable for different processing and application requirements.

[0003] A production method of phenolic resin is disclosed in Chinese patent (publication number CN104877095A). The patent technology adds polyurethane and a crosslinking agent to the mixed solution of phenol and aldehyde for modification, and uses magnesium oxide as a catalyst. The modified phenolic resin has excellent strength, toughness and flame retardance.

[0004] However, the operation steps and parameter control of the existing resin production method cannot be accurately controlled in actual operation, which makes the controllability of the production process low, affects the stability of product quality, and does not have a strict quality inspection and recording system after production, so that product quality tracing becomes more difficult. Therefore, the technical personnel in the field provide a production method of resin blocks to solve the problems raised in the above background art. SUMMARY

[0005] The purpose of the present application is to provide a production method of resin blocks to solve the problems raised in the above background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A production method of resin blocks, comprising the following steps: S1, batching: selecting and weighing resin powder, curing agent, plasticizer and additive; S2, mixing: putting the resin powder, curing agent, filler, plasticizer and additive into a special mixing device for uniform mixing; S3, heating and curing: putting the dough-like mixture into a mold after kneading and adding a certain proportion of liquid agent, and curing it by heating to a certain temperature; S4, cooling: cooling the cured resin block by water cooling to reduce the temperature and restore it to room temperature; S5, demolding: demolding the resin block from the mold after cooling and curing; S6, post-treatment: polishing and polishing the surface of the resin block after demolding to make the surface smooth and flat; S7, quality inspection test: after the surface treatment of the resin block, a comprehensive quality inspection is carried out on the resin block, at least including size, hardness, strength, appearance; S8, packaging and storage: the resin block that passes the quality inspection test is packaged, stored and transported.

[0007] As a further scheme of the present application: the curing agent is a hardener or an initiator; The plasticizer is MMA, EDGMA and fluorescent agent; The auxiliary agent is one or more of antioxidant, ultraviolet resistant agent and flame retardant.

[0008] As a further scheme of the present application: the mixing device adopts a double propeller stirrer or a high-speed stirrer; The rotation speed of the stirrer is 150-450 rpm; The mixing time is 5-15 min; The stirring temperature is 20-40℃.

[0009] As a further scheme of the present application: the heating and curing device is a warm isostatic press, and the temperature is 130℃, and the pressure is 20-22 MPa.

[0010] As a further scheme of the present application: the demolding includes the following steps: A1, check the curing condition: before demolding, first check whether the resin has been completely cured, confirm the hardness of the resin block by touching or pressure test, and ensure that it will not be deformed during demolding; A2, loosen the mold: use appropriate tools to gently knock the edge of the mold, so that a certain gap is generated between the mold and the resin block, and ensure that the resin block is no longer firmly combined with the mold wall; A3, slightly shake or rotate: slightly shake or rotate the mold to help increase the gap between the resin block and the mold wall, further reduce the risk of adhesion, and at this time, keep the action gentle to avoid damaging the resin block; A4, pull out the resin block: gently take out the resin block from the mold, and if the resin block is stuck in the mold, appropriate tools can be used again to gently pry it open.

[0011] As a further scheme of the present application: the post-treatment includes the following four stages: First stage: use coarse sandpaper or grinding disc to preliminarily polish the surface of the resin block, and the sandpaper particle size range is 60-120 mesh; Second stage: after rough grinding, use finer sandpaper for fine polishing to further smooth the resin surface and remove scratches left by rough grinding; The third stage: polishing the surface of the resin with polishing paste and special polishing tools to make it smooth and give it brightness. The fourth stage: cleaning the resin block with dust and polishing material residues accumulated on the surface during the grinding and polishing process with cleaning agent or water to ensure no contaminants are left behind.

[0012] As a further embodiment of the present application: the size inspection in the quality inspection test uses a caliper, a measuring instrument, or a measuring tool, etc. The hardness test uses a Shore hardness tester, a Rockwell hardness tester, or a Vickers hardness tester, etc. The strength test uses a universal material testing machine, a tensile testing machine, or an impact testing machine, etc. The appearance inspection uses a magnifying glass or a microscope, etc. The density test uses a density meter.

[0013] As a further embodiment of the present application: the quality inspection test also includes detailed recording of all test data and inspection results, generating a quality inspection report; for resin blocks that do not meet the standards, the problems are marked and processed.

[0014] Compared with the prior art, the present application has the following advantages: 1. The present application can improve the mixing efficiency of resin powder and curing agent by reasonable control of mixing equipment, stirring time, and rotation speed, etc., avoiding production problems caused by uneven raw materials, and precise control of heating and cooling processes to ensure optimal curing time and temperature, avoiding over-curing or incomplete curing.

[0015] 2. The present application can realize controllability of the production process through clear operation steps and parameter control (such as heating temperature, mixing time, rotation speed, etc.), thereby ensuring the stability of product quality, and having a strict quality inspection and recording system, making product quality traceability clearer, facilitating analysis and solution of possible problems in production.

[0016] 3. The present application reduces product damage and unqualified products caused by improper operation through correct demolding and post-processing steps, indirectly reducing waste generation. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. 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.

[0018] Please refer to the embodiment of the present application, a resin block production method, comprising the following steps: S1, batching: select and weigh the resin powder, curing agent, filler, plasticizer and additive; S2, mixing: put the resin powder, curing agent, filler, plasticizer and additive into a special mixing device for uniform mixing; S3, heating and curing: after mixing, add a certain proportion of liquid agent, knead into a dough, and then put it into a mold for initial forming, and then cure it by heating; S4, cooling: cool the cured resin block by natural cooling or forced cooling to reduce the temperature and restore it to room temperature; S5, demolding: after cooling and curing, the resin block is demolded from the mold; S6, post-processing: after demolding, the surface of the resin block is polished and polished to make it smooth and flat; S7, quality inspection test: after the surface treatment of the resin block, the resin block is comprehensively inspected for quality, including size, hardness, strength and appearance; S8, packaging and storage: the resin block that passes the quality inspection test is packaged, stored and transported.

[0019] In this embodiment, the curing agent is a hardener or an initiator; The plasticizer is MMA, EDGMA and fluorescent agent; The additive is one or more of antioxidant, ultraviolet resistant agent and flame retardant.

[0020] In this embodiment, by accurately weighing the resin powder, curing agent, plasticizer and additive, the proportion of each component is ensured to be accurate, so that the performance of the resin block is stable and consistent, and the distribution of each component in the resin block is uniform, improving the quality and performance stability of the final product.

[0021] In this embodiment, the mixing device is a double propeller mixer or a high-speed mixer; The speed of the mixer is 150-450 rpm; The mixing time is 5-15 min; The stirring temperature is 20-40℃.

[0022] In this embodiment, the resin powder, curing agent, plasticizer and the like are generally added to the mixing machine in a predetermined order. The common order is to add resin first, then curing agent, plasticizer and additive, to ensure that the order of different materials does not cause incomplete reaction or uneven distribution; The mixing time is generally set according to the characteristics of the material and the stirring equipment. Generally, the mixing time is 5-15 minutes to ensure that the resin powder and the curing agent, plasticizer and other components are completely and uniformly mixed; During high-speed stirring, air bubbles are easily generated. To prevent air bubbles from affecting the quality of the final product, a vacuum mixing system can be set up to remove air bubbles, or the stirring speed can be reduced to reduce the generation of air bubbles through low shear; After mixing, the uniformity of the resin system can be checked by sampling to ensure that there is no obvious filler deposition or particle unevenness. If there is unevenness, the stirring time or intensity may need to be extended.

[0023] In this embodiment, the heating and curing equipment is a warm isostatic press, the temperature is 130°C, and the pressure is 20-22MPa.

[0024] In this embodiment, the mixed resin is poured into a pre-prepared mold, the material of the mold is usually selected according to the purpose of the resin powder produced, which can be a metal mold, a silicone mold or other materials; The mold filled with resin is placed in a heating device for curing, and the curing temperature is usually 130°C, and the pressure is 20-22MPa; The curing time is usually adjusted according to the type of resin and the curing temperature, which is usually from 30 minutes to several hours; During the heating process, the resin and the curing agent undergo a chemical reaction, causing the resin chains to crosslink and form a three-dimensional network structure. This process changes the resin from a flowing liquid to a hard solid.

[0025] In this embodiment, the demolding includes the following steps: A1, check the curing condition: before demolding, first check whether the resin has been completely cured, confirm the hardness of the resin block by touching or pressure testing to ensure that it will not deform during demolding; A2, loosen the mold: use appropriate tools to gently tap the edges of the mold to create a gap between the mold and the resin block, ensuring that the resin block is no longer firmly bonded to the mold wall; A3, gently shake or rotate: gently shake or rotate the mold to help increase the gap between the resin block and the mold wall, further reducing the risk of sticking. At this time, the action should be gentle to avoid damaging the resin block; A4, pull out the resin block: gently remove the resin block from the mold. If the resin block is stuck in the mold, you can use appropriate tools to gently pry it out again.

[0026] In this embodiment, if the mold design requires the use of a release agent, the release agent can be applied before the resin is poured into the mold to make it easier to remove the resin block from the mold after curing.

[0027] In this embodiment, the post-processing includes the following four stages: First stage: Use coarse sandpaper or grinding disc to roughen the surface of the resin block, sandpaper grit range is 60-120 mesh; Second stage: After rough grinding, use finer sandpaper for fine grinding to further smooth the resin surface and remove scratches left by rough grinding; Third stage: Use polishing paste and special polishing tools to polish the resin surface, making it smooth and giving it brightness; Fourth stage: Clean the resin block with cleaning agent or water to remove dust and polishing material residues accumulated during the polishing and polishing process, ensuring no contaminants are left.

[0028] In this embodiment, the size inspection in the quality inspection test uses calipers, measuring instruments or measuring tools, etc. Hardness testing uses a Shore hardness tester, Rockwell hardness tester or Vickers hardness tester, etc. Strength testing uses a universal material testing machine, tensile testing machine or impact testing machine, etc. Visual inspection uses a magnifying glass or microscope, etc. Density testing uses a density meter.

[0029] In this embodiment, during size inspection, first use precision measuring tools such as calipers to measure the key dimensions of the resin block, such as length, width, height, thickness, etc., to ensure they meet the design specifications. For resin blocks with complex shapes, a three-coordinate measuring machine (CMM) can also be used for more accurate size measurement.

[0030] Check if the resin block has size deviation and whether it meets the design tolerance range.

[0031] During hardness testing, use a hardness tester to test the surface hardness of the resin block to ensure that the hardness meets the design requirements. During testing, choose different locations on the surface of the resin block to test to ensure the consistency of the hardness. According to the test results, judge whether the resin meets the required hardness standard. If the hardness does not meet the standard, check the resin formula and curing process.

[0032] During strength testing, the resin block is subjected to tensile, compression or bending tests to check its strength and toughness. During testing, record data such as maximum load and breaking point.

[0033] During visual inspection, visually inspect the surface of the resin block to check for bubbles, cracks, scratches, color differences, impurities or other defects; If more detailed inspection is required, use a magnifying glass or microscope to observe the resin surface to ensure there are no small defects; Ensure that the resin block surface is smooth, smooth and free of obvious defects, meeting the appearance quality standards.

[0034] Density testing is used to measure the density of the resin block, ensuring it is within the designed range. Density testing can indirectly reflect the quality of the resin formula and the degree of curing of the resin.

[0035] Quality inspection tests also include detailed records of all test data and inspection results, generating a quality inspection report. For resin blocks that do not meet standards, problems are identified and addressed.

[0036] The invention requires quality inspection, packaging preparation, packaging process, storage requirements, transportation requirements, etc. in packaging and storage.

[0037] 1. Quality Inspection Detection content: During the production process of the resin block, comprehensive quality inspection is first carried out to ensure that each resin block meets the standard requirements, mainly including appearance inspection, size measurement, hardness test, temperature resistance, compression strength, etc.

[0038] Test qualified mark: The qualified resin block should be marked with a quality qualified mark to ensure that it meets the required technical standards.

[0039] 2. Packaging Preparation Packaging material selection: Choose appropriate packaging materials, usually materials with moisture-proof, waterproof, shock-resistant and other characteristics, such as foam, bubble film, plastic film, etc.

[0040] Layered packaging: Resin blocks may need to be layered to ensure that there is enough buffer between each layer of resin blocks to avoid damage from mutual collision.

[0041] Label identification: Attach relevant labels on the outside of the package, including production date, batch number, quality inspection mark, transportation requirements (such as temperature, humidity, etc.) and storage conditions.

[0042] 3. Packaging Process Individual packaging: According to the size and shape of the resin block, each resin block may be individually wrapped with bubble film or plastic film to form a protective layer, preventing impact from external forces during transportation.

[0043] Combined packaging: Multiple resin blocks are combined into a container such as a carton or wooden box, ensuring that there is appropriate space and cushioning material between the resin blocks in the packaging box to avoid direct contact and friction.

[0044] Sealing: Use sealing tape to seal the packaging box, ensuring that it is not easily opened during transportation, reducing the risk of external contamination or damage.

[0045] 4. Storage Requirements Environmental requirements: Resin blocks should be stored in a dry, cool, and well-ventilated environment, avoiding high temperature, high humidity, or direct sunlight. Temperature and humidity control should meet the storage requirements of resin blocks.

[0046] Storage location: Resin blocks should be stored on a flat surface to avoid moisture or physical damage. The storage area should be marked with storage conditions and related precautions.

[0047] 5. Transportation Requirements Transportation vehicle selection: During transportation, appropriate transportation vehicles, such as trucks and containers, should be selected according to the quantity and packaging method of the resin blocks.

[0048] Transportation environment control: During transportation, ensure that the temperature and humidity meet the requirements and avoid exposing the transportation vehicle to extreme temperature or humidity environments.

[0049] Securely fastened: During transportation, ensure that the resin blocks are securely packaged to prevent displacement or damage during bumpy rides.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for producing resin blocks, characterized in that, Includes the following steps: S1. Ingredients: Select and weigh resin powder, curing agent, plasticizer and additives; S2. Mixing: Place the resin powder, curing agent, filler, plasticizer, and additives into a dedicated mixing device and mix them evenly. S3. Heat curing: After mixing evenly, add a certain proportion of liquid agent, knead into a dough-like consistency, place in a mold for initial shaping, and then cure by heating. S4. Cooling: The cured resin block is cooled by water to reduce its temperature and restore it to room temperature; S5. Demolding: After cooling and curing, demold the resin block from the mold; S6. Post-processing: After demolding, the surface of the resin block is ground and polished to make it smooth and flat. S7. Quality Inspection and Testing: After the surface treatment of the resin block, a comprehensive quality inspection shall be carried out on the resin block, including at least the dimensions, hardness, strength, and appearance. S8. Packaging and Storage: Pack, store and transport the resin blocks that have passed the quality inspection and testing.

2. The method for producing a resin block according to claim 1, characterized in that; The curing agent is a hardener or an initiator; The plasticizer is MMA, EDGMA, and a fluorescent agent; The additives are one or more of antioxidants, UV stabilizers, and flame retardants.

3. The method for producing a resin block according to claim 1, characterized in that, The mixing equipment uses a twin-propeller mixer or a high-speed mixer; The speed of the mixer is 150-450 rpm; The mixing time is 5-15 minutes; The stirring temperature is 20℃-40℃.

4. The method for producing a resin block according to claim 1, characterized in that, The heating and curing equipment is a thermostatic press, with a temperature of 130°C and a pressure of 20-22 MPa.

5. The method for producing a resin block according to claim 1, characterized in that, The demolding process includes the following steps: A1. Check the curing status: Before demolding, first check whether the resin has been completely cured. Confirm the hardness of the resin block by touching or pressing to ensure that it will not deform during the demolding process. A2. Loosen the mold: Use an appropriate tool to gently tap the edge of the mold to create a gap between the mold and the resin block, ensuring that the resin block is no longer firmly bonded to the mold wall; A3. Gentle shaking or rotation: Gently shake or rotate the mold to help increase the gap between the resin block and the mold wall, further reducing the risk of adhesion. At this time, keep the movements gentle to avoid damaging the resin block. A4. Remove the resin block: Gently remove the resin block from the mold. If the resin block is stuck in the mold, you can use an appropriate tool to gently pry it open again.

6. The method for producing a resin block according to claim 1, characterized in that, The post-processing includes the following four stages: First stage: Use coarse sandpaper or a grinding wheel to initially polish the surface of the resin block. The sandpaper grit range is 60-120 mesh. Second stage: After coarse sanding, finer sandpaper is used for fine sanding to further smooth the resin surface and remove scratches left by coarse sanding. The third stage involves polishing the resin surface with polishing compound and special polishing tools to make it smooth and give it a glossy finish. Fourth stage: Thoroughly clean the surface of the sanding and polishing process with detergent or water to remove any accumulated dust and polishing material residue, ensuring no contaminants remain.

7. The method for producing a resin block according to claim 1, characterized in that, The dimensional checks in the quality inspection tests are performed using equipment such as calipers, measuring instruments, or gauges. Hardness testing is performed using equipment such as Shore hardness testers, Rockwell hardness testers, or Vickers hardness testers. Strength testing is performed using equipment such as universal testing machines, tensile testing machines, or impact testing machines. Visual inspection is performed using equipment such as a magnifying glass or microscope; Density testing was performed using a densitometer.

8. The method for producing a resin block according to claim 1, characterized in that, The quality inspection and testing also includes detailed recording of all test data and inspection results, generating a quality inspection report; for resin blocks that do not meet the standards, the problems are marked and dealt with.