Compression molding method for chopped quartz fiber reinforced PEEK resin-based wave-transparent radome

Abstract

The invention discloses a compression molding method for a chopped quartz fiber reinforced PEEK resin-based wave-transparent radome. The method comprises the following steps: preparing and drying a premix; the premix is added into a mold cavity in batches in a pre-pressing mode; and carrying out compression molding on the premix. According to the PEEK resin temperature characteristic, integrated compression molding is carried out under the conditions of multi-stage heating and stage progressive pressurization, and the obtained composite material has the antenna housing appearance and also has good mechanical property and wave-transparent property; the forming mode is simple, and the production cost and period can be greatly reduced under the condition that the use requirements are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of antenna cover forming, in particular to a chopped quartz fiber reinforced PEEK resin-based wave-transparent antenna cover compression molding method. BACKGROUND

[0002] The radar antenna cover for flight requires good wave-transparent performance and good high-temperature resistance. The ceramic-based antenna cover has good wave-transparent and high-temperature resistance, but its cost is high, the unit price is as high as hundreds of thousands, and the production cycle is long, and the production cycle of a single product is more than a month. If it is applied to an antenna cover with low flight speed and a use temperature of 500 DEG C or less, the performance surplus problem will occur. For the antenna cover with low use temperature, the low-cost and short-cycle resin-based wave-transparent material becomes a research hotspot.

[0003] Polyether ether ketone resin as a kind of thermoplastic engineering plastic, due to its good high-temperature resistance, wave-transparent, chemical stability, excellent electrical properties and other characteristics, can meet the requirement of use temperature in 500 DEG C or less (. Figure 2 ). The traditional PEEK resin is produced by extrusion granulation and then injection molding. However, due to the high melting point, high hardness and difficult solubility of the resin, the screw is usually disassembled and calcined at high temperature after each production to clean the screw, which is difficult to clean and easy to damage the screw.

[0004] Compression molding is a molding method for producing products in a mold by pressure and temperature, which is widely used due to its simple operation and convenient mold cleaning. However, compression molding has high requirements for product structure, and it is difficult to be applied to complex structure products. At the same time, the conventional temperature limit of the tooling used in traditional compression molding is 200 DEG C, which is difficult to meet the temperature requirement of PEEK resin compression molding, which puts higher requirements on the structure design and temperature characteristics of the compression tooling. SUMMARY

[0005] The present application provides a chopped quartz fiber reinforced PEEK resin-based wave-transparent antenna cover compression molding method to solve the technical defects of chopped fiber reinforced PEEK resin-based composite material molding and reinforcement, and the molded antenna cover has good internal quality, high temperature resistance, high strength and other characteristics.

[0006] To achieve the above purpose, the present application provides a chopped quartz fiber reinforced PEEK resin-based wave-transparent antenna cover compression molding method, comprising the following steps: S1) preparation of premix and drying; S2) adding the premix into the mold cavity in batches by pre-pressing; S3) compression molding of the premix.

[0007] Further, the specific process of the step S1) is: shortening the quartz fiber by a shearing device, mixing the shortening quartz fiber and the PEEK resin powder to obtain a premix, and drying the premix.

[0008] Further, the weight ratio of the PEEK resin powder to the quartz fiber is 1:1-1:3, the quartz fiber is B-type quartz glass fiber, and the length of the shortening quartz fiber is 10-20 mm.

[0009] Further, the drying temperature is 60-120℃, and the drying time is 2-8h.

[0010] Further, the specific process of the step S2) is: S21) uniformly spraying a release agent in the cavity, adding the premix into the cavity, pre-pressing while adding, the pre-pressing pressure is 5-10MPa, until the premix is in a compacted state and the mold closing height is ≥70mm, stop adding, and keep the pre-pressing pressure for 5-10min, then reduce the pressure to the balance pressure, then increase the temperature at a rate of 1-2℃ / min to 180-200℃, keep for 20-30min, then press to the mold closing height of 40-50mm, after the press is finished, power off and naturally cool to room temperature; S22) after reducing to room temperature, add the premix again, pre-press while adding, the pre-pressing pressure is 5-10MPa, until the premix is in a compacted state and the mold closing height is ≥70mm, stop adding, and keep the pre-pressing pressure for 5-10min, then reduce the pressure to the balance pressure, then increase the temperature at a rate of 1-2℃ / min to 180-200℃, keep for 20-30min, then press to the mold closing height of 40-50mm, after the press is finished, power off and naturally cool; repeat the step until all the premix is added into the mold cavity.

[0011] Further, the specific process of the step S3) is: one-stage temperature increasing, temperature maintaining and pressurizing: from room temperature to 200-220℃ for one-stage temperature maintaining for 20-40min, after the one-stage temperature maintaining is finished, pressurize and perform first pressure maintaining treatment; two-stage temperature increasing, temperature maintaining and pressurizing: increase the temperature to 320-340℃ for two-stage temperature maintaining for 20-40min, after the two-stage temperature maintaining is finished, pressurize and perform second pressure maintaining treatment; three-stage temperature increasing, temperature maintaining and pressurizing: three-stage temperature increasing, temperature maintaining and pressurizing: increase the temperature to 400-410℃ for temperature maintaining for 60-120min, then pressurize and exhaust, use 100-500T forming pressure to form, to obtain the shortening quartz fiber reinforced PEEK resin based wave-transparent radome body.

[0012] Further, the temperature increasing rate of the temperature increasing from room temperature to 200-220℃ is 1.5-2.5℃ / min, the temperature increasing rate of the temperature increasing to 320-340℃ is 1-1.2℃ / min, and the temperature increasing rate of the temperature increasing to 400-410℃ is 0.8-1.0℃ / min.

[0013] Further, the pressure in the first pressure maintaining treatment and the second pressure maintaining treatment is lower than the pressure of the pressurized exhaust, specifically, the first pressure maintaining treatment is performed after pressurizing from the balance pressure to the mold closed gap of 20-30mm, the second pressure maintaining treatment is performed after pressurizing from the balance pressure to the mold closed gap of 10-20mm, and the pressure maintaining time of the first pressure maintaining treatment and the second pressure maintaining treatment is 3-8min; the pressure is released to the balance pressure after the first pressure maintaining treatment and the second pressure maintaining treatment; and the pressurized exhaust is pressurized from the balance pressure after the second pressure maintaining treatment to 70-75MPa for 3-5 times.

[0014] Further, the mold comprises an upper mold, a middle mold and a lower mold, and the upper mold and the middle mold and the middle mold and the lower mold are connected by locking blocks.

[0015] Further, a circle of high-temperature electric heating pipes is uniformly arranged around the cavity in the middle mold and the lower mold, and a high-temperature electric heating pipe is arranged in the core mold; an upper heat insulation plate is arranged on the upper surface of the upper mold, a lower heat insulation plate is arranged on the lower surface of the lower mold, and a circumferential heat insulation plate is arranged on the outer circumference of the upper mold, the outer circumference of the middle mold and the outer circumference of the lower mold.

[0016] Compared with the prior art, the beneficial effects of the present application are: 1) The chopped fiber reinforcement technology is selected, and the integrated mold pressing is adopted, so that the obtained composite material has isotropic mechanical properties, the fiber volume content is adjustable, and the fiber strength play rate can be fully controlled.

[0017] 2) The PEEK resin is used as the matrix, and the composite material has good high temperature resistance.

[0018] 3) The high-temperature pre-pressing technology is adopted in the feeding process, which can effectively solve the problems of insufficient space of the feeding cavity and poor material flowability.

[0019] 4) The molding method can be used for producing complex thin-walled structure products, and the matrix and the reinforcing body have good interface bonding.

[0020] 5) The mold is divided into three parts of upper mold, middle mold and lower mold, and each part can be disassembled and assembled, which can effectively avoid the waste caused by the adhesion of the blank to the concave mold during the ejection process; at the same time, the mold has good high temperature performance, which can meet the mold pressing of the high melting point PEEK resin based composite material. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a mold structure schematic diagram of the present application. Figure 2 a thermal gravimetric curve of PEEK resin; Figure 3 a differential scanning calorimetric analysis curve of PEEK resin. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0023] In view of the technical defects of PEEK resin-based wave-transparent material forming and reinforcement difficulty, the short-cut quartz fiber reinforced PEEK resin-based wave-transparent radome forming method of the present application first adopts short-cut quartz fiber and polyether ether ketone (PEEK) resin powder to mix to obtain a premix, then according to the temperature characteristics of PEEK resin, adopts multi-stage heating and stage-by-stage pressurizing conditions to perform integrated mold pressing forming, and the obtained composite material has the radome shape, and at the same time has good mechanical properties and wave-transparent performance; the forming method of the present application is simple, and can greatly reduce the production cost and cycle under the condition of meeting the use requirements.

[0024] The short-cut quartz fiber reinforced PEEK resin-based wave-transparent radome mold pressing forming method of the present application specifically includes the following steps: S1) Premix preparation and drying The quartz fiber is short-cut by a shearing device, the short-cut quartz fiber and PEEK resin powder are mixed to obtain a premix, and the premix is dried, the drying temperature is 60-120℃, and the drying time is 2-8h; the quartz fiber adopts B-type quartz glass fiber, and the length of the short-cut quartz fiber is 10-20mm; the weight ratio of PEEK resin powder to quartz fiber is 1:1-1:3; S2) The premix is added into the mold cavity in batches by pre-pressing S21) The surface of the mold cavity is cleaned with alcohol and clean cotton cloth, and the mold release agent is uniformly sprayed inside the cavity; the premix is added into the cavity, and pre-pressing is performed with a press while adding the premix, the pre-pressing pressure is 5-10MPa, until the mold closing height of the premix in the compacted state is ≥70mm, the adding is stopped, and the pre-pressing pressure is maintained for 5-10min, and then the pressure is released to the balance pressure; then the temperature is raised to 180-200℃ at a temperature raising rate of 1-2℃ / min, maintained for 20-30min, and then pressurized to a mold closing height of 40-50mm, after the pressurizing is completed, the power is turned off and the temperature is naturally lowered to room temperature; S22) After cooling to room temperature, the premix is added again, and the premix is pre-pressed with a press at a pressure of 5-10 MPa until the mold closing height of the premix in the compacted state is greater than or equal to 70 mm, and the pre-pressing pressure is maintained for 5-10 min, and then the pressure is released to the balance pressure; then the temperature is increased at a rate of 1-2 ℃ / min to 180-200 ℃, and the pressure is increased to a mold closing height of 40-50 mm after maintaining for 20-30 min, and the power is turned off after the pressure is increased, and the temperature is naturally lowered; the step is repeated until the premix is completely added to the mold cavity.

[0025] S3) The premix is molded by compression molding One-stage temperature increase, holding and pressure increase: from room temperature to 200-220 ℃ for one-stage holding for 20-40 min, and then pressure increase and first pressure holding after the one-stage holding is completed; Two-stage temperature increase, holding and pressure increase: temperature increase to 320-340 ℃ for two-stage holding for 20-40 min, and then pressure increase and second pressure holding after the two-stage holding is completed; Three-stage temperature increase, holding and pressure increase: three-stage temperature increase, holding and pressure increase: temperature increase to 400-410 ℃ for holding for 60-120 min, and then pressure increase and exhaust, and molding is performed by using a molding pressure of 100-500 T to obtain the chopped quartz fiber reinforced PEEK resin-based wave-transparent radome body.

[0026] The temperature increase rate from room temperature to 200-220 ℃ is 1.5-2.5 ℃ / min, the temperature increase rate from room temperature to 320-340 ℃ is 1-1.2 ℃ / min, and the temperature increase rate from room temperature to 400-410 ℃ is 0.8-1.0 ℃ / min.

[0027] The pressure in the first pressure holding and the second pressure holding is lower than the pressure in the pressure increase and exhaust, and specifically, the first pressure holding is pressure increase from the balance pressure to a mold closing gap of 20-30 mm and then pressure holding, the second pressure holding is pressure increase from the balance pressure to a mold closing gap of 10-20 mm and then pressure holding, and the pressure holding time in the first pressure holding and the second pressure holding is 3-8 min; and the pressure is released to the balance pressure after the first pressure holding and the second pressure holding are completed (the balance pressure refers to the pressure that offsets the internal expansion force of the blank to ensure that the thickness of the blank does not rebound after pressure release).

[0028] The pressure increase and exhaust after the second pressure holding is pressure increase from the balance pressure to 70-75 MPa for 3-5 times of exhaust. It can be understood that the pressure increase and exhaust stage does not need pressure holding, that is, the pressure is increased to 70-75 MPa, immediately released, and then increased and released again, and the process is repeated for 3-5 times.

[0029] In addition, in view of the difficulty in adding the quartz fiber / PEEK resin premix at room temperature due to the large void ratio and low density of the quartz fiber / PEEK resin premix, the present application combines the Tg of PEEK resin (see Figure 3The high-temperature (higher than Tg) pre-pressing mode is used for batch feeding to ensure the smooth feeding operation; meanwhile, the multi-stage heating and stage-by-stage pressurizing mode is used, and the pressurizing and pressure maintaining are carried out at 200-220 DEG C, 320-340 DEG C and 400-410 DEG C, so that the resin is uniformly distributed.

[0030] Since the radome product structure is a conical thin-wall cover body, once adhered to the concave die in the demolding process, it can only be taken out by a destructive method. Figure 1 As shown in the figure, the mold of the application comprises an upper die 1, a middle die 2 and a lower die 3, and the upper die 1 and the middle die 2 and the middle die 2 and the lower die 3 are connected by locking blocks. 1) lock the locking blocks between the upper die and the middle die, open the connecting bolts between the lower die and the middle die, lift the upper platform of the press to separate the lower die from the blank, at this time the blank is adhered to the upper middle die.

[0031] 2) slowly lower the upper platform of the press to ensure that the gap between the middle die and the lower die is 5-10 mm, and add a pad between the middle die and the lower die.

[0032] 3) tighten the connecting bolts between the middle die and the lower die, open the locking blocks between the upper die and the middle die, lift the upper platform of the press to separate the upper die from the middle die, at this time the blank is adhered to the upper die.

[0033] 4) if the upper platform of the press is equipped with an ejection mechanism, it can be directly ejected by the upper platform ejection cylinder, if the upper platform of the press is not equipped with an ejection mechanism, the mold can be turned over and ejected by the lower platform ejection cylinder.

[0034] Therefore, the above-mentioned three-stage mold is beneficial to feeding and can ensure smooth demolding of the product.

[0035] In addition, a circle of high-temperature electric heating pipes 4 (such as XRN-D-L-380V) are uniformly arranged around the inner periphery of the middle die 2 and the lower die 3, and high-temperature electric heating pipes 4 (such as XRN-D-L-380V) are also arranged in the core die 8; the upper surface of the upper die 1 is provided with an upper heat insulation plate 5, the lower surface of the lower die 3 is provided with a lower heat insulation plate 6, and the outer periphery of the upper die 1, the outer periphery of the middle die 2 and the outer periphery of the lower die 3 are provided with circumferential heat insulation plates 7, and the materials of the upper heat insulation plate 5, the lower heat insulation plate 6 and the circumferential heat insulation plate 7 are high-temperature resistant heat insulation materials such as YC-500; the mold has excellent high-temperature performance (the upper limit of the use temperature is 500 DEG C), which can meet the molding requirements of high-melting-point PEEK resin-based composite materials.

[0036] The application will be further described in detail through specific examples. The main dimensions of the prepared target conical cover body are shown in Table 1.

[0037] Table 1 Process dimensions of radome cover body Example 1 S1) Preparation and drying of quartz fiber / PEEK resin premix Cut the B-type quartz glass fiber into chopped quartz fiber with a length of 10-20 mm using a fiber cutting machine. Mechanically mix 1.65 kg of chopped quartz fiber with 3.35 kg of PEEK resin powder to obtain a premix, and place the premix in an oven and dry at a temperature increasing rate of 1-5 ℃ / min to 100 ℃ for 2-3 h. After drying, seal the premix in a clean plastic bag and use it within two days.

[0038] S2) Batch addition of premix to mold cavity by pre-pressing S21) Clean the surface of the mold cavity with alcohol and clean cotton cloth, and evenly spray the mold release agent inside the cavity. Add the premix to the cavity, pre-press it with the press while adding the material, and stop adding the material when the premix is in a compacted state and the mold closing height is ≥70 mm, and maintain the pre-pressing pressure for 5-10 min before releasing the pressure to the balance pressure. Then increase the temperature at a rate of 1-2 ℃ / min to 180-200 ℃, maintain for 20-30 min, then press to a mold closing height of 40-50 mm, and after the press is turned off, naturally cool to room temperature. S22) After cooling to room temperature, add the premix again, pre-press it with the press while adding the material, and stop adding the material when the premix is in a compacted state and the mold closing height is ≥70 mm, and maintain the pre-pressing pressure for 5-10 min before releasing the pressure to the balance pressure. Then increase the temperature at a rate of 1-2 ℃ / min to 180-200 ℃, maintain for 20-30 min, then press to a mold closing height of 40-50 mm, and after the press is turned off, naturally cool to room temperature. Repeat this step until all the premix is added to the mold cavity.

[0039] S3) Molding of the premix First temperature increasing, holding and pressing: increase the temperature at a rate of 2 ℃ / min from room temperature to 200 ℃ and hold for 20 min. After the holding is completed, start pressing from 0.5 MPa, and when the mold closing gap is controlled at 20-30 mm, stabilize the pressure for 5 min before releasing the pressure to 0.5 MPa. Second temperature increasing, holding and pressing: increase the temperature at a rate of 1 ℃ / min to 320 ℃ and hold for 20 min. After the holding is completed, start pressing from 0.5 MPa, and when the mold closing gap is controlled at 10-20 mm, stabilize the pressure for 5 min before releasing the pressure to 0.5 MPa. Three-stage temperature holding and pressure: after the temperature is raised to 400℃ at a rate of 0.8℃ / min, the pressure is raised to 60MPa, and the exhaust is performed three times, the molding is performed at a molding pressure of 100-500T, and after molding, three-stage temperature holding is performed for 60-120min, the power is disconnected, the mold temperature is naturally lowered to below 60℃, and the pressure is naturally released from the start of the temperature lowering; demolding is performed, and the chopped quartz fiber reinforced PEEK resin-based wave-transparent radome body is obtained.

[0040] Comparative Example 1 Compared with Example 1, the only difference is that in step S3, the temperature holding temperature of the three-stage temperature holding and pressure is set to 380℃, and the other steps and conditions are the same as those of Example 1.

[0041] It is found that when the molding temperature is too low, the viscosity of the resin is high when finally cured, the resin is difficult to fully infiltrate the surface of the fiber cloth during pressure, and the internal bubbles are difficult to completely discharge, resulting in poor interlayer bonding of the obtained composite material and decreased mechanical properties; at the same time, due to the existence of bubbles in the blank, the wave-transparent performance of the product is poor.

[0042] Comparative Example 2 Compared with Example 1, the only difference is that in step S3, the temperature holding temperature of the three-stage temperature holding and pressure is set to 420℃, and the other steps and conditions are the same as those of Example 1.

[0043] It is found that when the molding temperature is too high, there is a phenomenon of partial carbonization and decomposition of the surface resin, and the appearance of the molded blank is black; at the same time, due to the lack of resin in the blank, the fiber / resin bonding strength is weak, and the mechanical properties are poor.

[0044] According to the above method, the tooling mold plate is replaced, the sample is machined, and the performance test is performed, and the specific reference standards are: the tensile properties (room temperature) are detected according to GB / T1447-2005; the density (room temperature) is detected according to GB / T1463-2005; the thermal weight loss (550℃ / 40s) is detected according to GJB1873; the thermal conductivity coefficient (300℃) is detected according to GB / T10295-2008; the dielectric constant and loss tangent are detected according to the high Q cavity method (test frequency: 7-18GHz), and the sample test results are shown in Table 2 below.

[0045] Table 2 Test results of the composite materials obtained in each example and comparative example As can be seen from Table 2, when the high-temperature curing temperature is moderate, the fiber volume content in the blank is relatively in an ideal proportion, at this time, the quality of the blank is good, the mechanical properties are high, and the wave-transparent performance is excellent.

Claims

1. A method for molding a short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome, characterized in that: The molding method includes the following steps: S1) Preparation and drying of premixed materials; S2) The premixed material is added to the mold cavity in batches by pre-compression; S3) The premixed material is molded.

2. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 1, characterized in that: The specific process of step S1 is as follows: the quartz fiber is cut short by a shearing device, the short quartz fiber and PEEK resin powder are mixed to obtain a premix, and the premix is ​​dried.

3. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 2, characterized in that: The weight ratio of PEEK resin powder to quartz fiber is 1:1 to 1:3, and the quartz fiber is type B quartz glass fiber with a chopped length of 10-20 mm.

4. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 2, characterized in that: The drying temperature is 60-120℃ and the drying time is 2-8 hours.

5. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 1, characterized in that: The specific process of step S2 is as follows: S21) Spray the release agent evenly inside the mold cavity, add the premix into the mold cavity, and pre-press it with a press while adding the material. The pre-pressing pressure is 5-10MPa. Stop adding material when the mold closing height is ≥70mm under the compacted state. Maintain the pre-pressing pressure for 5-10min and then release the pressure to the equilibrium pressure. Then raise the temperature to 180-200℃ at a heating rate of 1-2℃ / min, maintain it for 20-30min, and then pressurize it until the mold closing height is 40-50mm. After the pressurization is completed, turn off the power and let it cool naturally to room temperature. S22) After cooling to room temperature, add the premixed material again, and pre-press it with a press while adding the material. The pre-pressing pressure is 5-10MPa. Stop adding material when the mold closing height is ≥70mm under compaction. Maintain the pre-pressing pressure for 5-10min and then release the pressure to the equilibrium pressure. Then raise the temperature to 180-200℃ at a heating rate of 1-2℃ / min, maintain it for 20-30min, and then pressurize it until the mold closing height is 40-50mm. After pressurization, turn off the power and let it cool naturally. Repeat this step until all the premixed material is added to the mold cavity.

6. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 1, characterized in that: The specific process of step S3 is as follows: First stage of heating, heat preservation and pressurization: Heat from room temperature to 200-220℃ and hold for 20-40 minutes. After the first stage of heat preservation, pressurize and perform the first pressure treatment. Two-stage heating, heat preservation and pressurization: Heat to 320-340℃ and perform two-stage heat preservation for 20-40 minutes. After the two-stage heat preservation is completed, pressurize and perform a second pressure preservation treatment. Three-stage heating, heat preservation, and pressurization: After heating to 400-410℃ and holding for 60-120 minutes, pressurize and exhaust the air, and use 100-500T molding pressure to obtain the short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome.

7. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 6, characterized in that: The heating rate from room temperature to 200-220℃ is 1.5-2.5℃ / min, the heating rate from 320-340℃ is 1-1.2℃ / min, and the heating rate from 400-410℃ is 0.8-1.0℃ / min.

8. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 6, characterized in that: The pressure in the first and second pressure holding processes is lower than the pressure for pressurization and venting. Specifically, the first pressure holding process involves pressurizing from the equilibrium pressure to a mold closing gap of 20-30 mm and then holding the pressure. The second pressure holding process involves pressurizing from the equilibrium pressure to a mold closing gap of 10-20 mm and then holding the pressure. The holding time for both the first and second pressure holding processes is 3-8 minutes. After the first and second pressure holding processes are completed, the pressure is released to the equilibrium pressure. The pressurization and venting process involves pressurizing from the equilibrium pressure after the second pressure holding process to 70-75 MPa and venting 3-5 times.

9. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 1, characterized in that: The mold includes an upper mold, a middle mold, and a lower mold. The upper mold and the middle mold, as well as the middle mold and the lower mold, are all locked together by locking blocks.

10. The molding method for short-cut quartz fiber reinforced PEEK resin-based transparent antenna radome according to claim 9, characterized in that: A ring of high-temperature electric heating tubes is evenly arranged around the cavity inside the middle mold and the lower mold, and a high-temperature electric heating tube is arranged inside the core mold; an upper heat insulation plate is arranged on the upper surface of the upper mold, and a lower heat insulation plate is arranged on the lower surface of the lower mold; circumferential heat insulation plates are provided on the outer circumference of the upper mold, the outer circumference of the middle mold, and the outer circumference of the lower mold.

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