Process for manufacturing a heating plate in one piece

Abstract

The present application relates to the technical field of heating plate, and discloses a preparation process of integrated forming of heating plate, which comprises the following steps: S1, stacking: raw materials are prepared first, and then the raw materials are sequentially placed into a stacking mold for stacking, and the stacked raw materials are observed with naked eyes; S2, hot pressing; S3, cutting; S4, power line welding: welding aids are evenly applied to the gap position of the power line connection, and then rapid welding is carried out through a laser welding machine; S5, positive and negative electrode insulation fixing; S6, inspection. Different materials are respectively used for the surface treatment layer, the fireproof layer, the insulation layer and the heating layer, the stacking sequence effect is remarkable, and the surface treatment layer provides beauty, corrosion resistance and wear resistance, and enhances the durability; the fireproof layer provides double protection, ensures safety at high temperature, and the insulation layer prevents current leakage and electrical interference; stable heating and high thermal efficiency, these materials each have unique performance advantages, can fully play the advantages of various materials, and improve the comprehensive performance of the product.

Description

Technical Field

[0001] This invention relates to the field of heating plate technology, specifically to the integral molding process for heating plates. Background Technology

[0002] A heating plate is a device component that converts electrical energy into heat energy. It is usually made of specific materials according to a certain process. Heating plates have many advantages. On the one hand, they can generate heat stably, providing a reliable heat source for various scenarios that require heating. The generated heat can be effectively concentrated and utilized, improving thermal efficiency and reducing energy consumption. The one-piece molding process usually has a high degree of automation, enabling continuous production and significantly shortening the production cycle. Compared with the traditional step-by-step assembly process, the one-piece molding process can reduce the operation time and labor costs of intermediate links and improve production efficiency.

[0003] Existing technologies have shortcomings in terms of performance, material combination, and overall design for practical applications: the surface treatment layer has poor durability, weak fire resistance, poor insulation, unstable heating and low thermal efficiency. During use, there are many unstable physical properties, including problems such as board deformation, shrinkage, expansion and softening, and they cannot meet the decorative effect. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an integrated molding process for heating plates, which solves the problems of poor durability of the surface treatment layer, weak fire resistance, poor insulation, unstable heating and low thermal efficiency, as well as many unstable physical properties during use, including plate deformation, shrinkage, expansion and softening.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The integral molding process for the heating plate includes the following steps: S1. Stacking: First, prepare the raw materials and put them into the stacking mold in order. Observe the stacked raw materials with the naked eye to check whether the gap is uniform. You can observe from different angles, such as the side, front and top, to ensure that the gap is consistent in all directions. Adjust the gaps where they are not uniform by gently moving the raw materials or adjusting the position of the spacers until the gaps are uniform. S2. Hot pressing: Place the prepared raw materials into the pre-heat pressing area, ensuring that the surface is clean and flat, and observe whether the gap in the middle is uniform. Make it contact with the heating element, and gradually raise the temperature of the hot press to the required hot pressing temperature. After the material reaches the hot pressing temperature, gradually apply pressure to the material. After the hot pressing is completed, gradually lower the temperature of the hot press to allow the material to cool to room temperature. When the material has cooled, release the pressure and remove it from the hot press. S3. Cutting: Align the cutting tool with the markings or predetermined cutting position on the material, and start the cutting tool slowly and steadily. Control the movement direction of the cutting tool to ensure that the cutting lines are straight and accurate. For thicker or harder materials, use a method of gradually increasing the cutting depth to avoid material breakage or damage to the cutting tool. Check the cutting quality: After the cutting is completed, immediately check the quality of the cutting edge to see if it is flat and smooth, and whether there are any burrs, cracks or deformations. S4. Power cord welding: First, use sandpaper, blade or cleaning agent to clean the welding area to remove surface oxides, oil and impurities to ensure welding quality. Then, apply welding flux evenly to the gap of the power cord connection and then weld quickly using a laser welding machine. S5. Power cord positive and negative pole insulation fixation: Check whether the power cord is unobstructed after welding, check whether the positive and negative poles of the power cord are damaged or oxidized, wipe the surface of the positive and negative poles of the power cord with a clean cloth or paper towel to remove dust, oil and impurities, and ensure that the surface is clean and tidy. Then attach the insulating material to the outside for insulation treatment. S6. Inspection: Conduct a comprehensive inspection of the heating plate's appearance. The surface should be clean, free of scratches, stains, and obvious color differences. The color and gloss should be uniform. Check whether the edges of the heating plate are neatly and smoothly cut, without burrs or chipped edges. Use an insulation resistance tester to measure the insulation resistance of the heating plate under the specified voltage. The insulation resistance should not be lower than a certain value to ensure good insulation performance and prevent leakage.

[0006] Preferably, in S1, the raw materials include a surface treatment layer, a refractory layer, an insulating layer, and a heating layer, and the stacking order is: first surface treatment layer, second refractory layer, third insulating layer, fourth heating layer, fifth insulating layer, sixth refractory layer, and seventh surface treatment layer.

[0007] Preferably, in S1, the surface treatment layer is made of decorative paper and melamine adhesive, with the decorative paper accounting for 20-40% by mass and the melamine adhesive accounting for 80-60% by mass. The refractory layer is made of glass fiber cloth, resin, and inorganic polymer materials including ceramic fiber and high-temperature ceramics, with the inorganic polymer materials accounting for 20-30% by mass and the resin accounting for 70-80% by mass. The insulating layer is made of glass fiber and epoxy resin, amine curing agent or reactive diluent, with the ratio of reactive amine curing agent or reactive diluent to epoxy resin being 10%-30%. The heating layer is made of high-resistance materials, including nickel-cadmium-aluminum, iron-chromium-aluminum, carbon fiber, and graphene.

[0008] Preferably, in S2, the temperature of the hot press is 120℃-180℃, the hot pressing time is 30-60 minutes, and the pressure is 5MPa-50MPa.

[0009] Preferably, in S3, the cutting tool includes a hydraulic cutting machine with a cutting pressure of 50-100 tons, a cutting height of 1.5-2.5 meters, and a cutting speed of 5-20 times / minute.

[0010] Preferably, in S4, the welding aid comprises the following raw materials in parts by weight: 20-30 parts of silicone-modified acrylic resin, 18-27 parts of ethylene glycol butyl ether acetate, 15-25 parts of rosin organic acid activator, 17%-20% of rosin-modified corrosion inhibitor, 40%-50% of rosin-modified temperature-resistant corrosion inhibitor paste, 5-8 parts of triethanolamine, 10-15 parts of copper carbonate, 3-5 parts of hydroquinone, 20-25 parts of salicylic acid, 7-9 parts of diacetone alcohol, 80-100 parts of deionized water, and 4-8 parts of BYK410 thixotropic agent.

[0011] Preferably, in S5, the insulating material includes a rubber and plastic composite material or a fiber and plastic composite material, wherein the epoxy phenolic resin and glass fiber composite material has an insulation resistance of 500-600 megohms, a withstand voltage of 10-15 kV, a tensile strength of 10-15 MPa, an elongation at break of 150-200%, a heat resistance of 80℃-150℃, a cold resistance of -40℃-60℃, an epoxy phenolic resin content of 20%-50%, and a glass fiber content of 50%-80%.

[0012] Preferably, the specified voltage of the resistor in S7 is 500V-600V, and the insulation resistance is not less than 50-100MΩ.

[0013] This invention provides a one-piece molding process for manufacturing heating plates. It offers the following advantages: 1. This invention employs different materials for the surface treatment layer, refractory layer, insulation layer, and heating layer, with a significant stacking effect. The surface treatment layer provides aesthetic appeal, corrosion and wear resistance, and enhanced durability; the refractory layer offers double protection, ensuring safety at high temperatures; the insulation layer prevents current leakage and electrical interference; and the heating layer is enclosed, providing stable heating and high thermal efficiency. Each of these materials has unique performance advantages, fully leveraging the strengths of each material to improve the overall performance of the product.

[0014] 2. This invention enhances the connection stability of acrylic resin by using a welding aid, silicone-modified acrylic resin; ethylene glycol butyl ether acetate acts as a solvent to adjust the system's flowability and drying speed; rosin organic acid activator improves coating durability; rosin-modified corrosion inhibitor synergistically enhances anti-corrosion performance with the paste-forming agent; triethanolamine adjusts pH and stability; copper carbonate provides color and potential anti-corrosion and antibacterial effects; hydroquinone provides antioxidant properties; salicylic acid has bactericidal and anti-corrosion properties; diacetone alcohol helps solubilize and adjust flowability; deionized water provides environmentally friendly dissolving properties; and BYK410 thixotropic agent prevents sagging and facilitates construction. Therefore, the welded power cord exhibits a more stable effect during use.

[0015] 3. Whether it is a rubber and plastic composite material or a fiber and plastic composite material, the present invention has a high insulation resistance, which can effectively prevent current leakage, ensure the safe operation of electrical equipment and circuits, prevent electrical faults such as leakage and short circuit, and provide reliable safety protection for users. The use of high voltage resistance means that the material can withstand high voltage without being broken down, providing reliable insulation protection for electrical equipment. It can play a stable role in different high-voltage electrical environments and adapt to a variety of complex working scenarios. Attached Figure Description

[0016] Figure 1 This is a flowchart of the present invention. Detailed Implementation

[0017] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: Please see the appendix Figure 1 This invention provides a process for integrally molding a heating plate, including the following steps: S1. Stacking: First, prepare the raw materials and put them into the stacking mold in order. Observe the stacked raw materials with the naked eye to check whether the gap is uniform. You can observe from different angles, such as the side, front and top, to ensure that the gap is consistent in all directions. Adjust the gaps where they are not uniform by gently moving the raw materials or adjusting the position of the spacers until the gaps are uniform. S2. Hot pressing: Place the prepared raw materials into the pre-heat pressing area, ensuring that the surface is clean and flat, and observe whether the gap in the middle is uniform. Make it contact with the heating element, and gradually raise the temperature of the hot press to the required hot pressing temperature. After the material reaches the hot pressing temperature, gradually apply pressure to the material. After the hot pressing is completed, gradually lower the temperature of the hot press to allow the material to cool to room temperature. When the material has cooled, release the pressure and remove it from the hot press. S3. Cutting: Align the cutting tool with the markings or predetermined cutting position on the material, and start the cutting tool slowly and steadily. Control the movement direction of the cutting tool to ensure that the cutting lines are straight and accurate. For thicker or harder materials, use a method of gradually increasing the cutting depth to avoid material breakage or damage to the cutting tool. Check the cutting quality: After the cutting is completed, immediately check the quality of the cutting edge to see if it is flat and smooth, and whether there are any burrs, cracks or deformations. S4. Power cord welding: First, use sandpaper, blade or cleaning agent to clean the welding area to remove surface oxides, oil and impurities to ensure welding quality. Then, apply welding flux evenly to the gap of the power cord connection and then weld quickly using a laser welding machine. S5. Power cord positive and negative pole insulation fixation: Check whether the power cord is unobstructed after welding, check whether the positive and negative poles of the power cord are damaged or oxidized, wipe the surface of the positive and negative poles of the power cord with a clean cloth or paper towel to remove dust, oil and impurities, and ensure that the surface is clean and tidy. Then attach the insulating material to the outside for insulation treatment. S6. Inspection: Conduct a comprehensive inspection of the heating plate's appearance. The surface should be clean, free of scratches, stains, and obvious color differences. The color and gloss should be uniform. Check whether the edges of the heating plate are neatly and smoothly cut, without burrs or chipped edges. Use an insulation resistance tester to measure the insulation resistance of the heating plate under the specified voltage. The insulation resistance should not be lower than a certain value to ensure good insulation performance and prevent leakage.

[0019] In S1, the raw materials include a surface treatment layer, a refractory layer, an insulation layer, and a heating layer. The stacking order is: first surface treatment layer, second refractory layer, third insulation layer, fourth heating layer, fifth insulation layer, sixth refractory layer, and seventh surface treatment layer.

[0020] Specifically, the seventh and first surface treatment layers, as the first and outermost layers, protect the internal layers while providing the product with a good appearance and certain corrosion and wear resistance, thus improving the overall durability. The second fire-resistant layer provides effective fire protection in high-temperature environments, preventing damage to the internal structure from external fire sources or high temperatures, ensuring safe use. The third and fifth insulation layers effectively prevent current leakage, avoiding the risk of electric shock, and also prevent electrical interference between different layers, ensuring the stable functioning of each layer. The heating layer, located in the middle and surrounded by the insulation and fire-resistant layers, can stably generate heat, and the generated heat can be effectively concentrated and utilized, improving thermal efficiency. The sixth fire-resistant layer further enhances the fire resistance, providing double fire protection for the product together with the second fire-resistant layer.

[0021] In S1, the surface treatment layer consists of decorative paper and melamine adhesive, with the decorative paper accounting for 20-40% by mass and the melamine adhesive accounting for 80-60% by mass. The refractory layer consists of fiberglass cloth, resin, and inorganic polymer materials, including ceramic fiber and high-temperature ceramics, accounting for 20-30% by mass and 70-80% by mass. The insulation layer consists of fiberglass and epoxy resin, amine curing agent or reactive diluent, with the ratio of reactive amine curing agent or reactive diluent to epoxy resin being 10%-30%. The heating layer uses high-resistance materials, including nickel-cadmium-aluminum, iron-chromium-aluminum, carbon fiber, and graphene.

[0022] Specifically, the surface treatment layer contains decorative paper and melamine adhesive. The decorative paper serves a decorative purpose, while the melamine adhesive is used for bonding and enhancing wear resistance. The fire-resistant layer consists of fiberglass cloth, resin, and inorganic polymer materials. The fiberglass cloth and resin help maintain structural stability, while the inorganic polymer materials provide heat insulation and fire resistance. The insulation layer is composed of fiberglass, epoxy resin, and amine curing agents or reactive diluents. The fiberglass and epoxy resin provide insulation, the curing agent promotes curing, and the diluent facilitates construction. The heating layer uses high-resistance materials such as nickel-cadmium-aluminum, which generate heat when electricity is applied, meeting various heating needs. In S2, the temperature of the hot press is 120℃, the hot pressing time is 30 minutes, and the pressure is 5MPa.

[0023] Specifically, a temperature of 120℃ promotes better fusion and curing between the various material layers. For the surface treatment layer, the decorative paper, melamine adhesive, and glue bond tightly at this temperature, forming a strong adhesion and ensuring surface smoothness and aesthetics. For the refractory layer, the resin softens and flows better, fully combining with the fiberglass paper and inorganic polymer materials to enhance fire resistance. The epoxy resin in the insulation layer also reacts with fiberglass, amine curing agents, or reactive diluents at this temperature to form a robust insulation structure. The carbon fiber in the heating layer also maintains stable performance at a certain temperature, ensuring uniform and reliable heating. The 30-minute hot-pressing time allows the temperature inside the hot press to be fully transferred to each material layer, enabling more thorough chemical reactions and physical changes between materials and preventing delamination and weak adhesion due to insufficient time. The 5MPa pressure ensures that the materials are tightly bonded together, reducing gaps and air bubbles. Under pressure, the molecular structure of the materials becomes more compact, increasing the product's density and strength. Simultaneously, the pressure also makes the surface treatment layer smoother and improves the product's appearance.

[0024] In S3, the cutting tools include a hydraulic cutting machine with a cutting pressure of 50 tons, a cutting height of 1.5 meters, and a cutting speed of 5 cuts per minute.

[0025] Specifically, the 50-ton cutting pressure can ensure a powerful and precise cut of the multi-layer composite structure. For this material combination that includes a surface treatment layer, a fire-resistant layer, an insulation layer, and a heating layer, the greater pressure can easily cut off each layer of material, avoiding problems such as uneven cutting and rough edges. The 1.5-meter cutting height provides a large space for cutting operations, which means that larger materials can be cut to meet the production needs of products of different specifications. A cutting speed of 5 cuts per minute provides a reasonable production efficiency while ensuring cutting quality. This speed is neither too fast, which would reduce cutting accuracy, nor too slow, which would affect the production schedule. At the same time, an appropriate cutting speed also helps to reduce equipment wear and energy consumption, and lower production costs.

[0026] In S4, the welding aid includes the following raw materials in parts by weight: 20 parts of silicone-modified acrylic resin, 18 parts of ethylene glycol butyl ether acetate, 15 parts of rosin organic acid activator, 17% of rosin-modified corrosion inhibitor, 40% of rosin-modified high-temperature corrosion inhibitor paste, 5 parts of triethanolamine, 10 parts of copper carbonate, 3 parts of hydroquinone, 20 parts of salicylic acid, 7 parts of diacetone alcohol, 80 parts of deionized water, and 4 parts of BYK410 thixotropic agent.

[0027] Specifically, silicone-modified acrylic resin provides good film-forming properties, giving the coating certain strength and toughness, enhancing weather resistance, resisting the effects of ultraviolet rays, temperature changes and humidity, improving adhesion, and ensuring that the coating is tightly bonded to the raw materials; Ethylene glycol butyl ether acetate is used as a solvent to dissolve and dilute other components, giving the entire system suitable fluidity, regulating the drying speed of the coating, and ensuring operability during construction. Rosin organic acid activators activate rosin components, enhance their reactivity, strengthen the adhesion between the coating and the raw materials, and improve the durability of the coating. Rosin-modified corrosion inhibitors inhibit corrosion of metal raw materials, preventing corrosion from occurring. They work synergistically with rosin-modified high-temperature corrosion inhibitor pastes to improve the corrosion resistance of coatings. Rosin-modified temperature-resistant corrosion inhibitor paste provides excellent temperature resistance, enabling the coating to remain stable in high-temperature environments, enhancing the corrosion inhibition effect, further protecting metal raw materials, and forming a paste-like texture that is easy to apply and coat. Triethanolamine adjusts the pH value of the coating to keep it within a suitable range, and interacts with other components to improve the stability of the coating. Copper carbonate provides coatings with certain colors or special appearance effects, and in some cases, it has certain anti-corrosion or antibacterial properties. Hydroquinone acts as an antioxidant, preventing the components in the coating from being oxidized, extending the coating's shelf life, and maintaining its performance stability. Salicylic acid has certain bactericidal and preservative properties, and can adjust the properties of coatings, such as drying speed and hardness. Diacetone alcohol, as a solvent and co-solvent, together with ethylene glycol butyl ether acetate, adjusts the fluidity of the coating and helps dissolve and disperse other components. Deionized water is used as the main solvent to ensure that all components are evenly dispersed in the system, providing environmentally friendly and safe construction conditions. BYK410 thixotropic agent imparts thixotropic properties to coatings, giving them high viscosity when at rest to prevent sagging. During application, the viscosity decreases under shear forces, making it easier to apply and level.

[0028] In S5, the insulating material includes epoxy phenolic resin and glass fiber composite material. The insulation resistance of epoxy phenolic resin and glass fiber composite material is 500-600 megohms, the withstand voltage is 10-15 kV, the tensile strength is 10-15 MPa, the elongation at break is 150-200%, the heat resistance temperature is 80℃-150℃, the cold resistance temperature is -40℃-60℃, the epoxy phenolic resin content is 20%-50%, and the glass fiber content is 50%-80%.

[0029] Specifically, the epoxy phenolic resin and glass fiber composite material in the insulation material has many performance characteristics. Its insulation resistance is 500-600 megohms, which can effectively block current conduction and ensure the safety of electrical systems. Its voltage resistance is 10-15 kV, which can withstand high voltage impact. Its tensile strength is 10-15 MPa, which can maintain structural integrity. Its elongation at break is 150-200%, which is flexible. Its heat resistance temperature is 80℃-150℃, and its cold resistance temperature is -40℃-60℃, which can adapt to different temperature environments. In terms of material composition, the epoxy phenolic resin content is 20%-50%, and the glass fiber content is 50%-80%. The two work together to give the material good performance.

[0030] The specified voltage for the S7 resistor is 500V, and the insulation resistance is not less than 50MΩ.

[0031] Using a specified voltage of 500V for testing ensures standardization and consistency. Different testing personnel can perform measurements under the same voltage conditions when using the resistance meter, thereby improving the reliability and comparability of the test results. Specifically, the requirement of an insulation resistance of not less than 50MΩ ensures safety performance: Insulation resistance is one of the important indicators for measuring the performance of insulation materials. Low insulation resistance leads to signal distortion, increased noise and equipment failure, and reflects the quality of insulation materials. The magnitude of insulation resistance directly reflects the quality and performance of insulation materials. If the insulation material has defects, is aged or damaged, its insulation resistance will usually decrease.

[0032] The difference between Example 2 and Example 1 is the following steps: In S1, the raw materials include a surface treatment layer, a refractory layer, an insulation layer, and a heating layer. The stacking order is: first surface treatment layer, second refractory layer, third insulation layer, fourth heating layer, fifth insulation layer, sixth refractory layer, and seventh surface treatment layer.

[0033] In S1, the surface treatment layer consists of decorative paper and melamine glue, with melamine glue comprising 40% and glue comprising 60%. The fire-resistant layer consists of glass fiber paper, resin, and inorganic polymer materials, including ceramic fiber and high-temperature ceramics, with inorganic polymer materials comprising 30% and resin comprising 70%. The insulation layer consists of glass fiber and epoxy resin, with amine curing agents or reactive diluents, and the ratio of reactive amine curing agents or reactive diluents to epoxy resin being 30%. The heating layer consists of carbon fiber.

[0034] In S2, the temperature of the hot press is 180℃, the hot pressing time is 60 minutes, and the pressure is 50MPa.

[0035] In S3, the cutting tools include a hydraulic cutting machine with a cutting pressure of 100 tons, a cutting height of 2.5 meters, and a cutting speed of 20 cuts per minute.

[0036] In S4, the welding aid includes the following raw materials in parts by weight: 30 parts of silicone-modified acrylic resin, 27 parts of ethylene glycol butyl ether acetate, 25 parts of rosin organic acid activator, 20% of rosin-modified corrosion inhibitor, 50% of rosin-modified high-temperature corrosion inhibitor paste, 8 parts of triethanolamine, 15 parts of copper carbonate, 5 parts of hydroquinone, 25 parts of salicylic acid, 9 parts of diacetone alcohol, 100 parts of deionized water, and 8 parts of BYK410 thixotropic agent.

[0037] In S5, the insulating material includes rubber and plastic composite materials or fiber and plastic composite materials. The rubber and plastic composite material has an insulation resistance of 600 megohms, a withstand voltage of 15 kV, a tensile strength of 15 MPa, an elongation at break of 200%, a heat resistance of 150℃, a cold resistance of -60℃, and a rubber content of 50% and a plastic content of 80%. The fiber and plastic composite material has an insulation resistance of 900 megohms, a withstand voltage of 20 kV, a tensile strength of 25 MPa, an elongation at break of 300%, a heat resistance of 200℃, a cold resistance of -70℃, and a fiber content of 40% and a plastic content of 60%.

[0038] The specified voltage for the S7 resistor is 600V, and the insulation resistance is not less than 100MΩ.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A one-piece molding manufacturing process for a heating plate, characterized in that, Includes the following steps: S1. Stacking: First, prepare the raw materials and place them into the stacking mold in order. Observe the stacked raw materials with the naked eye to check whether the gaps are uniform. Observe from different angles, such as the side, front and top, to ensure that the gaps are consistent in all directions. Adjust the gaps where they are uneven by gently moving the raw materials or adjusting the position of the spacers until the gaps are uniform. In S1, the raw materials include a surface treatment layer, a fire-resistant layer, an insulation layer and a heating layer. The stacking order is: first surface treatment layer, second fire-resistant layer, third insulation layer, fourth heating layer, fifth insulation layer, sixth fire-resistant layer, and seventh surface treatment layer. The surface treatment layer is made of decorative paper and melamine adhesive, with the decorative paper accounting for 20-40% by mass and the melamine adhesive accounting for 80-60% by mass; the refractory layer is made of fiberglass cloth, resin, and inorganic polymer materials; the insulating layer is made of fiberglass, epoxy resin, and active amine curing agent or active diluent, wherein the ratio of active amine curing agent or active diluent to epoxy resin is 10%-30%; the heating layer is made of high-resistance materials, including nickel-cadmium-aluminum, iron-chromium-aluminum, carbon fiber, and graphene. S2. Hot Pressing: Place the prepared raw materials into the pre-heating area, ensuring their surface is clean and flat, and observe whether the gaps in the middle are uniform. Ensure they are in contact with the heating element, and gradually increase the temperature of the hot press to the required hot pressing temperature. After the material reaches the hot pressing temperature, gradually apply pressure to the material. After hot pressing is completed, gradually decrease the temperature of the hot press to allow the material to cool to room temperature. Once the material has cooled, release the pressure and remove it from the hot press. In S2, the temperature of the hot press is 120℃-180℃, the hot pressing time is 30-60 minutes, and the pressure is 5MPa-50MPa. S3. Cutting: Align the cutting tool with the markings or predetermined cutting position on the material, and start the cutting tool slowly and steadily. Control the movement direction of the cutting tool to ensure that the cutting lines are straight and accurate. For thick or hard materials, use a method of gradually increasing the cutting depth to avoid material breakage or damage to the cutting tool. Check the cutting quality: After the cutting is completed, immediately check the quality of the cutting edge to see if it is flat and smooth, and whether there are any burrs, cracks or deformations. S4. Power cord welding: First, use sandpaper, blade or cleaning agent to clean the welding area to remove surface oxides, oil and impurities to ensure welding quality. Then, apply welding flux evenly to the gap of the power cord connection and then weld quickly using a laser welding machine. S5. Power cord positive and negative pole insulation fixation: Check whether the power cord is unobstructed after welding, check whether the positive and negative poles of the power cord are damaged or oxidized, wipe the surface of the positive and negative poles of the power cord with a clean cloth or paper towel to remove dust, oil and impurities, and ensure that the surface is clean and tidy. Then attach the insulating material to the outside for insulation treatment. S6. Inspection: Conduct a comprehensive inspection of the heating plate's appearance. The surface should be clean, free of scratches, stains, and obvious color differences. The color and gloss should be uniform. Check whether the edges of the heating plate are neatly and smoothly cut, without burrs or chipped edges. Use an insulation resistance tester to measure the insulation resistance of the heating plate under the specified voltage. The insulation resistance should not be lower than a certain value to ensure good insulation performance and prevent leakage.

2. The integral molding process for the heating plate according to claim 1, characterized in that: In S3, the cutting tools include a hydraulic cutting machine with a cutting pressure of 50-100 tons.

3. The integral molding process for the heating plate according to claim 1, characterized in that: In S5, the insulating material includes epoxy phenolic resin and glass fiber composite material. The epoxy phenolic resin and glass fiber composite material has an insulation resistance of 500-600 megohms, a withstand voltage of 10-15 kV, a tensile strength of 10-15 MPa, an elongation at break of 150-200%, a heat resistance temperature of 80℃-150℃, a cold resistance temperature of -40℃ to -60℃, an epoxy phenolic resin content of 20%-50%, and a glass fiber content of 50%-80%.

4. The integral molding process for the heating plate according to claim 1, characterized in that: The specified voltage for the insulation resistance tester in S6 is 500V-600V.

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