A silicon carbide fiber composite body and a winding forming method thereof

Abstract

The present application relates to a kind of silicon carbide fiber composite material rotary body member and its winding forming method, belong to silicon carbide fiber reinforced composite material technical field, to solve the low precision of pre-preg paving technology in prior art, low production efficiency, process difficulty and low product quality, the winding of silicon carbide fiber is difficult to accurately control each parameter, leading to the quality of the rotary body member prepared is poor etc. One of the problems.The method of the present application can design process parameters and fiber path based on CADWIND software according to different component structure parameters, realize the flexibility and adaptability of process. Fiber type, fiber length, fiber quantity and resin parameters can be adjusted according to specific requirements to meet different application scenarios.

Description

Technical Field

[0001] This invention relates to the field of silicon carbide fiber reinforced composite materials technology, and in particular to a silicon carbide fiber composite rotating component and its winding molding method. Background Technology

[0002] Silicon carbide (SiC) fibers possess excellent high-temperature stability, high strength, and corrosion resistance, making them a promising candidate for applications in aerospace, energy, and automotive industries. Silicon carbide fiber cylinders are widely used in the fabrication of high-performance, lightweight components, such as aerospace propulsion system parts, high-temperature reactors, and petrochemical equipment.

[0003] Traditional methods for fabricating silicon carbide fiber cylinders typically employ prepreg lay-up molding technology. This method involves pre-impregnating silicon carbide fibers in a specific resin matrix, then manually or semi-automatically layering the impregnated fiber layers onto a mold, followed by multiple curing and heat treatment steps to ultimately form the cylinder structure. While traditional methods have achieved some success, they also have limitations, such as complex fabrication processes, time-consuming and labor-intensive processes, difficulty in achieving complex structural designs, and precise control over the cylinder structure.

[0004] To overcome the limitations of traditional manufacturing methods, filament winding technology has received widespread attention and application in recent years. Filament winding technology involves winding silicon carbide fibers layer by layer onto a mold. This method can reduce manufacturing time, lower labor costs, improve the uniformity of fibers and resins, and allow for more complex structural designs.

[0005] Due to its good high-temperature resistance, silicon carbide fiber can be widely used in aerospace propulsion system components, high-temperature reactors, petrochemical equipment, etc. However, it is relatively brittle, and the parameters of ordinary winding are difficult to control. Without precise matching, problems such as breakage, delamination, and unevenness can easily occur during the winding process, affecting the performance of the final product. Summary of the Invention

[0006] Based on the above analysis, the present invention aims to provide a silicon carbide fiber composite rotating component based on CADWIND software and its winding molding method, in order to solve one of the problems in the prior art, such as low precision of prepreg laying technology, low production efficiency, high process difficulty and low product quality, and difficulty in accurately controlling various parameters of silicon carbide fiber winding, resulting in poor quality of the prepared rotating component.

[0007] In a first aspect, the present invention provides a method for winding a silicon carbide fiber composite rotating component based on CADWIND software, comprising the following steps:

[0008] (1) Create a three-dimensional model of the component in CADWIND software;

[0009] (2) Define winding parameters: The winding parameters include winding method, winding angle, friction coefficient and displacement parameters;

[0010] (3) Set the material parameters for silicon carbide fiber and resin;

[0011] (4) The winding simulation test of silicon carbide fiber was carried out using CADWIND software, and the winding parameters were optimized and iterated to determine the winding parameters;

[0012] (5) Resin preparation: The oxide ceramic powder, the oxide ceramic organic precursor and the organic solvent are mixed to obtain a uniformly dispersed resin, and the resin is added to the resin tank.

[0013] (6) Perform the actual winding operation according to the winding parameters, silicon carbide fiber and resin material parameters determined in step (4). Wind the silicon carbide fiber onto the mold along the path of fiber cabinet-resin tank-winding machine head-mold. The winding process needs to be carried out under heating conditions. The fiber tension is set to 5-8N during the winding process.

[0014] (7) The wound fibers are hot-pressed to obtain a silicon carbide fiber composite rotating component.

[0015] Furthermore, in step (1), the three-dimensional model of the component is determined by the diameter and height of the component.

[0016] Furthermore, in step (3), the material parameters include fiber density, yarn width, fiber grit number, resin density, and fiber volume fraction.

[0017] Furthermore, in step (4), the winding parameters are specifically determined by the following method:

[0018] (a) Determine whether the coverage of the entangled area in the simulation test is 100%;

[0019] (b) Determine whether the error between the total thickness of the winding area in the simulation test and the component to be produced is within ±0.1 mm.

[0020] Furthermore, if the results of steps (a) and (b) are both yes, then the parameters for determining the winding in the optimization iteration are the same as those in step (2);

[0021] If the result of step (a) is negative, increase the winding angle in step (2) by 0.2°; redetermine the winding parameters in step (4) until the results of steps (a) and (b) are both positive.

[0022] And / or, if the result of step (b) is negative, adjust the displacement parameters in step (2) and redetermine the winding parameters in step (4) until the results of steps (a) and (b) are both positive.

[0023] Furthermore, the adjustment of the displacement parameters is as follows:

[0024] Calculate n0 = thickness deviation / single layer thickness, and adjust the winding displacement parameters of layers n-n0, n-n0+1, n-n0+2, ... to n. Specifically, modify the winding displacement parameters of layers n-n0, n-n0+1, n-n0+2, ... to n to the winding start displacement to the error region start displacement and the error region end displacement to the winding end displacement.

[0025] Where n is the total number of layers and n0 is the number of error layers, and both n and n0 are integers.

[0026] Furthermore, in step (5), the oxide ceramic powder comprises 50-60% by mass, the oxide ceramic organic precursor comprises 10-30% by mass, and the organic solvent comprises 20-30%.

[0027] Furthermore, the oxide ceramic powder includes one or more of Al2O3, SiO2, HfO2, Y2O3, or ZrO2.

[0028] Furthermore, the oxide ceramic organic precursor includes one or more of polycarbosilane, dimethylsiloxane, vinylsilane, silicone resin, polyaluminoxane, and organozirconium.

[0029] Furthermore, the organic solvent includes one or more of ethylene glycol monoethyl ether, epoxy resin, ethanol, trichloroethane, methanol, or toluene.

[0030] Furthermore, in step (6), the heating temperature is 60-80℃, and the fiber tension is set to 5-8N during the winding process.

[0031] Furthermore, in step (7), the hot pressing temperature is 160-200℃, the heating rate is 1-2℃ / min, the pressure is 1.5-2.5MPa, and the holding time is 0.5-2h.

[0032] Secondly, the present invention provides a silicon carbide fiber composite rotating component obtained by the above method.

[0033] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0034] (1) The method of the present invention achieves winding of silicon carbide fiber composite material by precisely controlling the parameters of each condition that affect the winding process of silicon carbide fiber composite material. Specifically, the winding parameters are optimized by adjusting the winding angle and displacement parameters, which can realize the winding of silicon carbide fiber composite material. Furthermore, the fiber tension is controlled to be 5-8N, which can prevent breakage during the winding process and ensure the quality of the final prepared rotating body component.

[0035] (2) Traditional prepreg laying and molding methods require multiple independent steps, including prefabrication of fiber materials, resin coating, drying and curing, which are time-consuming and complex. The method of the present invention integrates multiple steps into the winding process through simulation and optimization using CADWIND software, reducing prefabrication and intermediate processing steps, and greatly reducing the time and labor costs of the preparation process.

[0036] (3) In traditional prepreg laying and molding methods, the degree and uniformity of fiber material and resin impregnation are limited, often resulting in uneven impregnation and weak interlayer bonding of fibers. However, the method of the present invention, through winding simulation and optimization using CADWIND software, can precisely control the winding path and angle of the fibers, so that the fibers are evenly and tightly wound on the surface of the component. Furthermore, the fiber impregnation resin is injected during the winding process, ensuring full bonding between the fibers and the resin, thereby improving the strength and stability of the structure.

[0037] (4) Traditional prepreg laying and molding methods usually require individual prefabrication and coating processes for different structures and sizes, making it difficult to universalize process parameters. However, the method of this invention, based on CADWIND software, can design process parameters and fiber paths according to different component structural parameters, achieving process flexibility and adaptability. Fiber type, fiber length, fiber quantity, and resin parameters can be adjusted according to specific needs to meet the requirements of different application scenarios.

[0038] (5) The method of the present invention consumes less time and effort and has a better winding effect when preparing silicon carbide fiber composite rotating body components. It also has flexibility and adaptability and is expected to be widely used in aerospace, energy and other fields.

[0039] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0040] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0041] Figure 1 This is a CT image of the cylinder prepared by the method in Example 1 of the present invention;

[0042] Figure 2 This is a CT image of the cylinder prepared by the method in Example 2 of the present invention;

[0043] Figure 3 This is a CT image of the cylinder prepared by the method in Example 3 of the present invention;

[0044] Figure 4 This is a CT image of the cylinder prepared by the method of Comparative Example 1 of the present invention;

[0045] Figure 5 This is a CT image of the cylinder prepared by the method of Comparative Example 2 of the present invention. Detailed Implementation

[0046] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0047] A specific embodiment of the present invention discloses a method for winding a silicon carbide fiber composite rotating component based on CADWIND software, comprising the following steps:

[0048] (1) Create a three-dimensional model of the component in CADWIND software;

[0049] (2) Define winding parameters: The winding parameters include winding method, winding angle, friction coefficient and displacement parameters;

[0050] (3) Set the material parameters for silicon carbide fiber and resin;

[0051] (4) The winding simulation test of silicon carbide fiber was carried out using CADWIND software, and the winding parameters were optimized and iterated to determine the winding parameters;

[0052] (5) Resin preparation: The oxide ceramic powder, the oxide ceramic organic precursor and the organic solvent are mixed to obtain a uniformly dispersed resin, and the resin is added to the resin tank.

[0053] (6) Perform the actual winding operation according to the winding parameters, silicon carbide fiber and resin material parameters determined in step (4). Wind the silicon carbide fiber onto the mold along the path of fiber cabinet-resin tank-winding machine head-mold. The winding process needs to be carried out under heating conditions. The fiber tension is set to 5-8N during the winding process.

[0054] (7) The wound fibers are hot-pressed to obtain a silicon carbide fiber composite rotating component.

[0055] Compared with the prior art, the method of the present invention achieves the winding of silicon carbide fiber composite materials by precisely controlling the parameters that affect the winding process of silicon carbide fiber composite materials. Specifically, by adjusting the winding angle and displacement parameters to optimize the winding parameters, the winding of silicon carbide fiber composite materials can be achieved. Moreover, by controlling the fiber tension to 5-8N, the fiber can be prevented from breaking during the winding process, thus ensuring the quality of the final prepared rotating body component.

[0056] The method of the present invention integrates multiple steps into the winding process through simulation and optimization using CADWIND software, reducing prefabrication and intermediate processing steps, and greatly reducing the time and labor costs of the preparation process.

[0057] The method of the present invention, through winding simulation and optimization using CADWIND software, can precisely control the winding path and angle of the fiber, so that the fiber is wound evenly and tightly on the surface of the component. Furthermore, the fiber is impregnated with resin during the winding process, ensuring full bonding between the fiber and the resin, thereby improving the strength and stability of the structure.

[0058] The method of this invention is based on CADWIND software, which can design process parameters and fiber paths according to different component structural parameters, realizing the flexibility and adaptability of the process. Fiber type, fiber length, fiber quantity, and resin parameters can be adjusted according to specific needs to meet the requirements of different application scenarios.

[0059] In one specific implementation, in step (1), the three-dimensional model of the component is determined by the component diameter and height that conform to the mold.

[0060] It should be noted that by entering the diameter and height of the component that matches the mold in the model creation window of the CADWIND software, a three-dimensional model of the component is created. The three-dimensional model of the component accurately reflects the size, geometry and structural features of the component.

[0061] It should be noted that the winding parameters are set through the parameter setting function of the CADWIND software. The winding method described in this invention is circumferential winding.

[0062] In one specific implementation, step (2) further includes the winding parameters including coverage and number of layers.

[0063] In one specific implementation, in step (3), the material parameters include fiber density, yarn width, fiber grit number, resin density, and fiber volume fraction.

[0064] In one specific implementation, in step (4), the winding parameters are determined by the following method:

[0065] (a) Determine whether the coverage of the entangled area in the simulation test is 100%;

[0066] (b) Determine whether the error between the total thickness of the winding area in the simulation test and the component to be produced is within ±0.1 mm.

[0067] In a specific implementation, if the judgment results of steps (a) and (b) are both yes, then the parameters for winding determined by the optimization iteration are the same as those in step (2);

[0068] If the result of step (a) is negative, increase the winding angle in step (2) by 0.2°; redetermine the winding parameters in step (4) until the results of steps (a) and (b) are both positive.

[0069] And / or, if the result of step (b) is negative, adjust the displacement parameters in step (2) and redetermine the winding parameters in step (4) until the results of steps (a) and (b) are both positive.

[0070] In one specific implementation, the adjustment of the displacement parameter is as follows:

[0071] Calculate n0 = thickness deviation / single layer thickness, and adjust the winding displacement parameters of layers n-n0, n-n0+1, n-n0+2, ... to n. Specifically, modify the winding displacement parameters of layers n-n0, n-n0+1, n-n0+2, ... to n to the winding start displacement to the error region start displacement and the error region end displacement to the winding end displacement.

[0072] Where n is the total number of layers and n0 is the number of error layers, and both n and n0 are integers.

[0073] The displacement parameters mentioned in this invention refer to the coordinates of the displacement points at the start and end points of the component winding. The start and end points of the error region can be directly obtained through software. In a specific embodiment, in step (5), the oxide ceramic powder is 50-60%, the oxide ceramic organic precursor is 10-30%, and the organic solvent is 20-30% by mass percentage.

[0074] In one specific embodiment, the oxide ceramic powder includes one or more of Al2O3, SiO2, HfO2, Y2O3, or ZrO2.

[0075] In one specific embodiment, the oxide ceramic organic precursor includes one or more of polycarbosilane, dimethylsiloxane, vinylsilane, silicone resin, polyaluminoxane, and organo-zirconium.

[0076] In one specific embodiment, the organic solvent includes one or more of ethylene glycol monoethyl ether, epoxy resin, ethanol, trichloroethane, methanol, or toluene.

[0077] In one specific embodiment, the silicon carbide fiber composite rotating body component has a volume fraction of 40-60% for silicon carbide fibers and 40-60% for resin.

[0078] In one specific implementation, in step (6), the heating temperature is 60-80°C.

[0079] It should be noted that in step (6), when the silicon carbide fiber is wound on the mold, the temperature of the resin bath is set to 20-30℃, and the fiber tension is set to 5-8N to inject the resin to impregnate the fiber, ensuring that the fiber and resin are fully bonded. During the process of the fiber being wound on the mold, infrared lamps are added to both sides of the mold and their temperature is set to 60℃-80℃ to reduce the fluidity of the resin.

[0080] It should be noted that in this invention, the fiber tension is set to 5-8N, and other parameters are controlled to make the silicon carbide fiber less prone to breakage. The components prepared by the method of this invention have a more stable structure and better quality.

[0081] In one specific embodiment, in step (7), the temperature of hot pressing is 160-200℃, the heating rate is 1-2℃ / min, the pressure is 1.5-2.5MPa, and the holding time is 0.5-2h.

[0082] It should be noted that after the fiber winding is completed, the wound component structure is placed in an autoclave for hot pressing and molding, and then naturally cooled to room temperature to obtain a silicon carbide ceramic matrix composite component with a dense layer.

[0083] Another specific embodiment of the present invention discloses a silicon carbide fiber composite rotating component obtained by the above method.

[0084] In one specific implementation method, the silicon carbide fiber composite rotating body component is a silicon carbide fiber composite cylinder, and the cylinder is a cylindrical cylinder.

[0085] It should be noted that the cylindrical body described in this invention is mainly used in aerospace propulsion system components, high-pressure containers, petrochemical equipment and other fields.

[0086] The technical effects of the present invention will be further explained below with reference to specific embodiments.

[0087] Example 1

[0088] This embodiment of the method for winding a silicon carbide fiber composite rotating component based on CADWIND software includes the following steps:

[0089] (1) Create a three-dimensional model of the component in CADWIND software with a diameter of 100mm and a height of 260mm.

[0090] (2) Define the winding parameters: circumferential winding, winding angle is 89.5°, number of layers is 9, coverage is 100%, friction coefficient is 0.2, and displacement parameter is -140-140;

[0091] (3) Set the material parameters for silicon carbide fiber and resin in CADWIND software, where the fiber density is 1.2 g / cm³. 3 Yarn width 1.1mm, fiber grit number 1, resin density 1.5g / cm³ 3 and fiber volume fraction 60%;

[0092] (4) A winding simulation test of silicon carbide fiber was conducted using CADWIND software, and the winding parameters were optimized and iterated to determine the winding parameters. Among them, (a) the coverage of the winding area in the simulation test was 100%; (b) the error between the total thickness of the winding area in the simulation test and the component to be produced was within ±0.1mm. The winding parameters determined by the optimization and iteration were as follows: circumferential winding, winding angle of 89.5°, number of layers of 9, friction coefficient of 0.2, coverage of 100%, and displacement parameter of -140-140. The determined winding parameter result file was imported into the operation software of the winding machine.

[0093] (5) Resin preparation: The oxide ceramic powder, the oxide ceramic organic precursor and the organic solvent are mixed to obtain a uniformly dispersed resin, wherein the oxide ceramic powder SiO2 is 55% by mass percentage, the oxide ceramic organic precursor silicone resin is 20% by mass percentage and the organic solvent ethanol is 25% by mass percentage. The resin is added to the resin tank.

[0094] (6) Perform actual winding operation according to the winding parameters and silicon carbide fiber material parameters determined in step (4). Wind the silicon carbide fiber onto the mold along the path of fiber cabinet-resin tank-winding machine head-mold. At the same time, during the winding process, set the temperature of the resin tank of the winding machine to 25°C and the fiber tension to 5N. During the process of winding the fiber onto the mold, add infrared heating lamps on both sides of the mold and set their temperature to 70°C.

[0095] (7) The wound fibers are hot-pressed at a temperature of 200℃, a heating rate of 2℃ / min, a pressure of 2.5MPa, and a holding time of 2h. After naturally cooling to room temperature, a silicon carbide ceramic matrix composite silicon carbide fiber composite rotating component with a densified layer is obtained.

[0096] Example 2

[0097] This embodiment of the method for winding a silicon carbide fiber composite rotating component based on CADWIND software includes the following steps:

[0098] (1) Create a three-dimensional model of the component in CADWIND software with a diameter of 120mm and a height of 50mm.

[0099] (2) Define the winding parameters: circumferential winding, winding angle is 89.5°, number of layers is 9, coverage is 100%, friction coefficient is 0.2, and displacement parameter is -30-30;

[0100] (3) Set the material parameters for silicon carbide fiber and resin in CADWIND software, where the fiber density is 1.2 g / cm³. 3 Yarn width 1mm, fiber grit number 2, resin density 1.5g / cm³ 3 and fiber volume fraction 60%;

[0101] (4) A winding simulation test of silicon carbide fiber was conducted using CADWIND software, and the winding parameters were optimized and iterated to determine the winding parameters. Among them, (a) the coverage of the winding area in the simulation test was less than 100%; (b) the error between the total thickness of the winding area in the simulation test and the component to be produced was within ±0.1mm. The winding parameters determined by the optimization and iteration were as follows: circumferential winding, winding angle of 89.7°, number of layers of 9, friction coefficient of 0.2, coverage of 100%, and displacement parameter of -30-30. The determined winding parameter result file was imported into the operation software of the winding machine.

[0102] (5) Resin preparation: The oxide ceramic powder, the oxide ceramic organic precursor and the organic solvent are mixed to obtain a uniformly dispersed resin, wherein the oxide ceramic powder is 60% Al2O3, the oxide ceramic organic precursor is 20% dimethylsiloxane and the organic solvent is 20% trichloroethane. The resin is added to the resin tank.

[0103] (6) Perform actual winding operation according to the winding parameters and silicon carbide fiber material parameters determined in step (4). Wind the silicon carbide fiber onto the mold along the path of fiber cabinet-resin tank-winding machine head-mold. At the same time, during the winding process, set the temperature of the resin tank of the winding machine to 25°C and the fiber tension to 5N. During the process of winding the fiber onto the mold, add infrared heating lamps on both sides of the mold and set their temperature to 70°C.

[0104] (7) The wound fibers are hot-pressed at a temperature of 200℃, a heating rate of 2℃ / min, a pressure of 2.5MPa, and a holding time of 2h. After naturally cooling to room temperature, a silicon carbide ceramic matrix composite silicon carbide fiber composite rotating component with a densified layer is obtained.

[0105] Example 3

[0106] This embodiment of the method for winding a silicon carbide fiber composite rotating component based on CADWIND software includes the following steps:

[0107] (1) Create a three-dimensional model of the component with a diameter of 170mm and a height of 80mm in CADWIND software.

[0108] (2) Define the winding parameters: circumferential winding, winding angle is 89.5°, number of layers is 36, coverage is 100%, friction coefficient is 0.2, and displacement parameter is -50-50;

[0109] (3) Set the material parameters for silicon carbide fiber and resin in CADWIND software, where the fiber density is 1.2 g / cm³. 3 Yarn width 1.1mm, fiber grit number 1, resin density 1.5g / cm³ 3 and fiber volume fraction 60%;

[0110] (4) A winding simulation test of silicon carbide fiber was conducted using CADWIND software, and the winding parameters were optimized and iterated to determine the winding parameters. Among them, (a) the coverage of the winding area in the simulation test was 100%; (b) the error between the total thickness of the winding area and the component to be produced in the simulation test was not within ±0.1mm. According to CADWIND software, the total thickness error area of ​​the winding area was 25-29, the length was 4mm, and the error value was 0.2mm. The winding parameters determined by the optimization and iteration were as follows: circumferential winding, winding angle was 89.8°, number of layers was 36, friction coefficient was 0.2, coverage was 100%, displacement parameters were -50-50 for the first 35 layers, and displacement parameters of the last layer were -50-25 and 29-50. The determined winding parameter result file was imported into the operation software of the winding machine.

[0111] (5) Resin preparation: The oxide ceramic powder, the oxide ceramic organic precursor and the organic solvent are mixed to obtain a uniformly dispersed resin, wherein the oxide ceramic powder ZrO2 is 50% by mass percentage, the oxide ceramic organic precursor silicoaluminoxane is 30% and the organic solvent epoxy resin is 20%. The resin is added to the resin tank.

[0112] (6) Perform actual winding operation according to the winding parameters and silicon carbide fiber material parameters determined in step (4). Wind the silicon carbide fiber onto the mold along the path of fiber cabinet-resin tank-winding machine head-mold. At the same time, during the winding process, set the temperature of the resin tank of the winding machine to 30°C and the fiber tension to 8N. During the process of winding the fiber onto the mold, add infrared heating lamps on both sides of the mold and set their temperature to 70°C.

[0113] (7) The wound fibers are hot-pressed at a temperature of 200℃, a heating rate of 2℃ / min, a pressure of 1.5MPa, and a holding time of 0.5h. After naturally cooling to room temperature, a silicon carbide ceramic matrix composite silicon carbide fiber composite rotating component with a densified layer is obtained.

[0114] Comparative Example 1

[0115] The method of this comparative example is the same as that of Example 1, except that in step (6), the fiber tension is set to 4N.

[0116] Comparative Example 2

[0117] The method of this comparative example is the same as that of Example 1, except that in step (6), the fiber tension is set to 9N.

[0118] Experimental Example 1

[0119] Silicon carbide ceramic matrix composite silicon carbide fiber composite cylinders prepared using the methods of Examples 1-3 and Comparative Examples 1-2, respectively, were subjected to CT testing according to GB / T 25995. The results are as follows: Figure 1-5 As shown.

[0120] pass Figure 1-3 It can be seen that the cylindrical structure prepared by the method of the present invention has good quality, and there are no problems such as fiber breakage, cracks, or delamination inside. Through Figure 4-5 It can be seen that the cylinders prepared in Comparative Examples 1-2 were of poor quality, exhibiting obvious fiber delamination and unevenness inside. This demonstrates that through precise control of the various condition parameters of this invention, it is possible to prepare cylinders of significantly better quality.

[0121] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method of winding forming a SiC fiber composite body member based on CADWIND software, characterized by, The method comprises the following steps: (1) establishing a three-dimensional model of the component in CADWIND software; (2) defining winding parameters: the winding parameters include winding mode, winding angle, friction coefficient and displacement parameter; (3) setting material parameters of silicon carbide fibers and resin; (4) performing a winding simulation test on the silicon carbide fibers by using the CADWIND software, and optimizing and iteratively determining the winding parameters; (5) resin preparation: mixing oxide ceramic powder, oxide ceramic organic precursor and organic solvent to obtain uniformly dispersed resin, and adding the resin into a resin tank; (6) performing actual winding operation according to the winding parameters, the material parameters of the silicon carbide fibers and the resin determined in step (4), winding the silicon carbide fibers on a mold according to the path of fiber cabinet-resin tank-winding machine head-mold, and the winding process needs to be performed under heating, and the fiber tension during the winding process is set to 5-8 N; (7) hot-pressing the wound fibers to obtain a silicon carbide fiber composite rotary body component; In step (4), the winding parameters are determined by the following method: (a) judging whether the coverage rate of the winding area in the simulation test is 100%; (b) judging whether the total thickness of the winding area in the simulation test is within ±0.1 mm of the error of the component to be produced; If the results of steps (a) and (b) are both yes, the winding parameters are optimized and iteratively determined as the same as in step (2); If the result of step (a) is no, the winding angle in step (2) is increased by 0.2°; the winding parameters in step (4) are re-determined until the results of steps (a) and (b) are both yes; And / or, if the result of step (b) is no, the displacement parameter in step (2) is adjusted, the winding parameters in step (4) are re-determined until the results of steps (a) and (b) are both yes.

2. The method of claim 1, wherein the CADWIND software is used to determine the winding pattern of the SiC fiber composite body. In step (1), the three-dimensional model of the component is determined by the diameter and height.

3. The method of claim 1, wherein the CADWIND software is used to determine the winding pattern of the SiC fiber composite body. In step (3), the material parameters include fiber density, yarn width, fiber number, resin density and fiber volume fraction.

4. The method of claim 1, wherein the CADWIND software is used to determine the winding pattern of the SiC fiber composite body. The adjustment of the displacement parameter is as follows: Calculate n0=thickness deviation / single layer thickness, and adjust the winding displacement parameters of the n-n0 layer, n-n0+1 layer, n-n0+2 layer, …, to the n layer, and specifically modify the winding displacement parameters of the n-n0 layer, n-n0+1 layer, n-n0+2 layer, …, to the n layer to the displacement from the winding starting point to the starting point of the error area, and the displacement from the ending point of the error area to the winding ending point; Wherein, n is the total number of layers, n0 is the number of error layers, and n and n0 are both integers.

5. The method of claim 1, wherein the CADWIND software is used to determine the winding pattern of the SiC fiber composite body. In step (5), the oxide ceramic powder, the oxide ceramic organic precursor and the organic solvent are mixed in a mass percentage of 50-60%, 10-30% and 20-30%, respectively.

6. The method of claim 1, wherein the CADWIND software is used to determine the winding pattern of the SiC fiber composite body. In step (6), the heating temperature is 60-80℃.

7. The method of claim 1, wherein the CADWIND software is used to determine the winding pattern of the SiC fiber composite body. In step (7), the hot-pressing temperature is 160-200℃, the heating rate is 1-2℃ / min, the pressure is 1.5-2.5 MPa, and the holding time is 0.5-2 h.

8. A silicon carbide fiber composite rotary body component obtained by the method of any one of claims 1-7.

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