Recyclable titanium powder-containing composite material

Abstract

The invention relates to the technical field of additive manufacturing, and discloses a recyclable titanium powder-containing composite material, which is prepared by the following steps: weighing a base material, an auxiliary material and an additive after formula optimization, optimizing original reaction equipment, additionally arranging a heating system, a pressurizing system and a cooling system in a reaction kettle, and preparing the recyclable titanium powder-containing composite material. A jaw crusher, screening equipment, magnetic separation equipment and cleaning equipment are additionally arranged at the production beginning position, an unqualified composite material collecting device is additionally arranged at the production ending position and connected through a conveying belt, reaction kettle conditions are set and comprise the temperature, the pressure, the vacuum degree and the stirring speed, and the stirring speed is set in the initial stage, the middle stage and the later stage of reaction. The method comprises the following steps: adding formula materials in sequence, after reaction is completed, closing a heating and pressurizing system, starting a cooling system, cooling to room temperature, carrying out quality detection on the cooled composite material, treating the unqualified composite material and the recycled titanium-containing composite waste material according to the steps of the recycling equipment, and converting the unqualified composite material and the recycled titanium-containing composite waste material into a reusable composite material raw material. And cyclic utilization of resources is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of additive manufacturing, and specifically relates to a titanium powder-containing composite material that can be recycled. Background Art

[0002] With the rapid development of modern industry, especially the growing demand for high-performance materials in the fields of aerospace, automotive manufacturing, and medical treatment, titanium and its composite materials have received extensive attention due to their lightweight, high strength, and corrosion resistance. However, the production process of traditional titanium materials is complex, costly, and generates a large amount of waste during processing, resulting in resource waste and environmental pressure. At the same time, with the increasingly prominent global resource shortage problem, finding a titanium-containing material that can meet high-performance requirements and achieve resource recycling has become a research hotspot. Therefore, it is particularly important to develop a titanium powder-containing composite material that can be recycled. This material aims to convert waste titanium-containing parts or titanium-containing scraps into high-quality titanium-containing raw materials through advanced recycling technologies and remanufacturing processes, achieving efficient utilization of resources and sustainable development of the environment. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the present invention provides a titanium powder-containing composite material that can be recycled, which has the advantages of low cost, excellent performance, and recyclability, and solves the problems of complex production process, high cost, resource waste, and large environmental pressure of traditional titanium materials.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solutions: A titanium powder-containing composite material that can be recycled, comprising the following steps:

[0007] Step 1. Optimize the formula: Prepare high-purity titanium powder, titanium-containing composite waste, silicon carbide whiskers, nano-ceramic particles, reinforcing fibers, rubber, graphene, pore-forming agent, antioxidant, sintering agent, catalyst, self-healing agent, conductive enhancer, and colorant, and optimize the mass fraction ratio;

[0008] Step 2. Prepare the materials: Weigh the materials in the mass fraction of the formula for standby;

[0009] Step 3. Optimize the equipment: Optimize the original reaction equipment, and add a heating system, a pressure boosting system, and a cooling system to the reaction kettle;

[0010] Step 4. Add recycling equipment: Add a jaw crusher, screening equipment, magnetic separation equipment, and cleaning equipment at the beginning of production, and add a collection device for unqualified composite materials at the end of production, and connect them to the screening equipment, magnetic separation equipment, and cleaning equipment through a conveyor belt;

[0011] Step Five: Set reaction parameters: Set the conditions of the reaction kettle, including temperature, pressure, vacuum degree and stirring speed during the reaction. Among them, the stirring speed needs to be set according to different stages of the reaction, specifically divided into three stages: the initial stage, the middle stage and the later stage of the reaction;

[0012] Step Six: Add raw materials: According to the three stages of the initial stage, the middle stage and the later stage of the reaction, add the formulated materials in sequence, and start the reaction in combination with the reaction parameters in Step Four;

[0013] Step Seven: Cooling and shaping: After the reaction is completed, turn off the heating and pressurizing systems in the reaction kettle, turn on the cooling system, and cool the composite material generated by the reaction to room temperature through the cooling system;

[0014] Step Eight: Quality inspection: Conduct quality inspection on the cooled composite material;

[0015] Step Nine: Establish a recyclable system: Process the unqualified composite materials produced and the recycled titanium-containing composite waste according to the above steps of adding recycling equipment, and convert them into composite material raw materials that can be reused again.

[0016] Preferably, the formulation in Step One consists of a base material, an auxiliary material and an additive. The materials and their parts by mass are: 55 - 65 parts of high-purity titanium powder; 8 - 10 parts of titanium-containing composite waste; 2 - 5 parts of silicon carbide whiskers; 4 - 7 parts of nano ceramic particles; 3 - 6 parts of reinforcing fibers; 1 - 3 parts of rubber; 0.5 - 1.3 parts of graphene; 0.05 - 0.21 parts of pore-forming agent; 1.3 - 2.0 parts of antioxidant; 0.6 - 1.6 parts of sintering agent; 0.9 - 1.7 parts of catalyst; 1.2 - 1.8 parts of self-healing agent; 1.2 - 2.3 parts of conductive enhancer; 0.8 - 1.4 parts of colorant.

[0017] Preferably, the high-purity titanium powder and the titanium-containing composite waste form the base material, the silicon carbide whiskers, nano ceramic particles, reinforcing fibers, rubber, graphene and pore-forming agent form the auxiliary material, and the antioxidant, sintering agent, catalyst, self-healing agent, conductive enhancer and colorant form the additive.

[0018] Preferably, the reinforcing fiber is selected from one or two of nano carbon fiber and nano glass fiber, and the rubber is selected from one or two of nitrile rubber and silicone rubber.

[0019] Preferably, the improvement of the reaction equipment in Step Three: Add a high-temperature melting device, introduce vacuum melting technology, add a stirring device, install an automatic control system, and monitor the reaction parameters in real time.

[0020] Preferably, in step four, the jaw crusher crushes the collected waste titanium-containing parts or scraps into particles with a particle size of ≤5 mm. The screening equipment passes the crushed particles through a sieve with a pore size of 0.5 - 1 mm. The magnetic separation equipment removes ferromagnetic impurities from the particles. The cleaning equipment cleans the oil stains and dust on the surface of the particles through an ultrasonic cleaner. The unqualified material collection device collects unqualified materials in the finished product.

[0021] Preferably, in step five, the temperature is set at 1000°C - 1100°C, the heating rate is 10°C / min, and the holding time is set at 2 - 3 h.

[0022] Preferably, in step five, the pressure is set at 30 - 50 MPa, and the pressure is applied in stages. The pressure is 30 - 40 MPa in the initial forming stage and 40 - 50 MPa in the later forming stage, and the vacuum degree is maintained at 10 -4 Pa.

[0023] Preferably, in step five, the stirring speed in the initial reaction stage is set at 400 - 500 r / min, the stirring speed in the middle reaction stage is set at 1000 - 1200 r / min, and the stirring speed in the later reaction stage is set at 800 - 900 r / min.

[0024] Preferably, in step six, raw materials are added: according to the three stages of the initial, middle, and later reaction stages, the formulated materials are added in sequence. High-purity titanium powder, titanium-containing composite waste, and catalyst weighed in advance are added in the initial reaction stage. Silicon carbide whiskers, nano-ceramic particles, reinforcing fibers, rubber, graphene, pore-forming agent, sintering agent, and conductive enhancer are added in the middle reaction stage. Self-healing agent and colorant are added in the later reaction stage.

[0025] Compared with the prior art, the present invention provides a titanium powder-containing composite material that can be recycled, having the following beneficial effects:

[0026] 1. By optimizing the formula and the proportion of materials used, the present invention achieves the effect of improving the performance of the composite material. The prepared titanium powder-containing composite material has high strength, corrosion resistance, light weight, and good toughness, and can meet various application requirements. Moreover, by adding recycling equipment and establishing a recyclable system, the recycling of waste materials is realized, so as to reduce production costs, reduce resource waste, and contribute to environmental protection.

[0027] 2. The present invention optimizes the equipment and reaction parameters to improve the production efficiency and the quality of the finished product. By improving the original reaction equipment, a high-temperature melting device, a stirring device, an automated control system, etc. are introduced to ensure the uniform mixing and effective reaction of the raw materials during the reaction process. At the same time, by setting reasonable reaction parameters such as temperature, pressure, vacuum degree, and stirring speed, the controllability of the reaction process is ensured, thereby improving the production efficiency. And by establishing a recyclable recovery system, the recycling of unqualified materials is realized, thereby further reducing the production cost and improving the utilization rate of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a flowchart for the preparation of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1 , a recyclable titanium powder-containing composite material, comprising the following steps:

[0031] Step 1. Optimize the formula: Prepare high-purity titanium powder, titanium-containing composite waste, silicon carbide whiskers, nano-ceramic particles, reinforcing fibers, rubber, graphene, pore-forming agent, antioxidant, sintering agent, catalyst, self-healing agent, conductive enhancer, and colorant, and optimize the mass fraction ratio;

[0032] Step 2. Prepare the materials: Weigh the materials in the mass fraction of the formula for standby;

[0033] Step 3. Optimize the equipment: Optimize the original reaction equipment, and add a heating system, a pressurizing system, and a cooling system to the reaction kettle;

[0034] Step 4. Add recycling equipment: Add a jaw crusher, screening equipment, magnetic separation equipment, and cleaning equipment at the beginning of production, and add a device for collecting unqualified composite materials at the end of production, and connect them to the screening equipment, magnetic separation equipment, and cleaning equipment through a conveyor belt;

[0035] Step 5. Set the reaction parameters: Set the conditions of the reaction kettle, including the temperature, pressure, vacuum degree, and stirring speed during the reaction process. Among them, the stirring speed needs to be set according to different stages of the reaction, specifically divided into three stages: the initial stage, the middle stage, and the later stage of the reaction;

[0036] Step 6. Add raw materials: According to the three stages of the initial, middle, and late stages of the reaction, add the formulated materials in sequence, and start the reaction in combination with the reaction parameters in Step 4;

[0037] Step 7. Cooling and shaping: After the reaction is completed, turn off the heating and pressurization systems in the reaction kettle, turn on the cooling system, and cool the composite material generated by the reaction to room temperature through the cooling system;

[0038] Step 8. Quality inspection: Conduct quality inspection on the cooled composite material;

[0039] Step 9. Establish a recyclable recovery system: Treat the unqualified composite materials produced and the recycled titanium-containing composite waste according to the above steps of adding recovery equipment, and convert them into reusable composite material raw materials.

[0040] Specifically, the formulation in Step 1 consists of a base material, an auxiliary material, and an additive. The materials and their parts by mass are as follows: 55 - 65 parts of high-purity titanium powder; 8 - 10 parts of titanium-containing composite waste; 2 - 5 parts of silicon carbide whiskers; 4 - 7 parts of nano-ceramic particles; 3 - 6 parts of reinforcing fibers; 1 - 3 parts of rubber; 0.5 - 1.3 parts of graphene; 0.05 - 0.21 parts of pore-forming agent; 1.3 - 2.0 parts of antioxidant; 0.6 - 1.6 parts of sintering agent; 0.9 - 1.7 parts of catalyst; 1.2 - 1.8 parts of self-healing agent; 1.2 - 2.3 parts of conductive enhancer; 0.8 - 1.4 parts of colorant.

[0041] The above materials and their corresponding functions are shown in Table 1 below:

[0042] Table 1

[0043]

[0044]

[0045] The advantages are: By optimizing the formulation and the proportion of materials used, the effect of improving the performance of the composite material is achieved. The prepared titanium powder-containing composite material has high strength, corrosion resistance, light weight characteristics, and good toughness, and can meet various application requirements. And by adding recovery equipment and establishing a recyclable recovery system, the recycling of waste materials is realized, so as to reduce production costs, reduce resource waste, and contribute to environmental protection.

[0046] Specifically, the high-purity titanium powder and the titanium-containing composite waste form the base material, the silicon carbide whiskers, nano-ceramic particles, reinforcing fibers, rubber, graphene, and pore-forming agent form the auxiliary material, and the antioxidant, sintering agent, catalyst, self-healing agent, conductive enhancer, and colorant form the additive.

[0047] Specifically, the reinforcing fiber is selected from one or both of carbon nanofibers and glass nanofibers. Carbon nanofibers have the characteristics of high strength and high modulus, which can enhance the mechanical properties of the composite material, especially the tensile strength and flexural strength. Moreover, the cost of glass nanofibers is relatively low. While enhancing the composite material, it can also improve the formability of the material. The rubber is selected from one or both of nitrile rubber and silicone rubber. Among them, nitrile rubber has excellent oil resistance, wear resistance and chemical corrosion resistance. In the titanium powder-containing composite material, it helps to enhance the flexibility and impact resistance of the material, and is especially suitable for environments with requirements for oil resistance. Silicone rubber has good high-temperature and low-temperature resistance and electrical insulation properties, which can enable the composite material to maintain stable performance within a wide temperature range and is suitable for occasions with high requirements for temperature adaptability.

[0048] Specifically, the improvement of the reaction equipment in step three: adding a high-temperature melting device to process the recycled titanium waste, improving the melting efficiency, introducing vacuum melting technology to reduce oxidation pollution and improve the purity of titanium powder, adding a stirring device to ensure the uniform mixing of raw materials during the reaction, and installing an automated control system to monitor the reaction parameters in real time and improve the production efficiency.

[0049] Specifically, in step four, the jaw crusher crushes the collected waste titanium-containing parts or scraps into particles with a particle size ≤ 5 mm. The screening equipment passes the crushed particles through a sieve with a pore size of 0.5 - 1 mm to remove the particles that do not meet the particle size requirements during recycling. The magnetic separation equipment removes ferromagnetic impurities from the particles. The cleaning equipment cleans the oil stains and dust on the surface of the particles through an ultrasonic cleaner. The unqualified material collection device collects the unqualified materials in the finished product.

[0050] Specifically, in step five, the temperature is set at 1000°C - 1100°C, the heating rate is 10°C / min, and the holding time is set at 2 - 3 h.

[0051] Specifically, in step five, the pressure is set at 30 - 50 MPa, and the pressure is applied in stages. The pressure is 30 - 40 MPa in the initial stage of forming and 40 - 50 MPa in the later stage of forming. The vacuum degree is maintained at 10 -4 Pa to ensure that no gas impurities are mixed into the reaction process.

[0052] Specifically, the stirring speed in the initial stage of the reaction in step five is set at 400 - 500 r / min, the stirring speed in the middle stage of the reaction is set at 1000 - 1200 r / min, and the stirring speed in the later stage of the reaction is set at 800 - 900 r / min.

[0053] Specifically, in step six, raw materials are added: according to the three stages of the initial, middle, and later stages of the reaction, the formulated materials are added in sequence. High-purity titanium powder, titanium-containing composite waste, and catalyst weighed in advance are added in the initial stage of the reaction to ensure the uniform mixing of the base materials and lay a solid foundation for subsequent reactions. Silicon carbide whiskers, nano-ceramic particles, reinforcing fibers, rubber, graphene, pore-forming agent, sintering agent, and conductive enhancer are added in the middle stage of the reaction to enhance the strength and toughness of the materials. Self-healing agent and colorant are added in the later stage of the reaction to ensure the comprehensive improvement of the various properties of the materials.

[0054] The advantages are as follows: by optimizing the equipment and reaction parameters, the effects of improving production efficiency and product quality are achieved. By improving the original reaction equipment and introducing high-temperature melting devices, stirring devices, and automated control systems, etc., to ensure the uniform mixing and effective reaction of raw materials during the reaction process. At the same time, by setting reasonable reaction parameters such as temperature, pressure, vacuum degree, and stirring speed, the controllability of the reaction process is ensured, thereby improving production efficiency. And by establishing a recyclable recovery system, the recycling of unqualified materials is realized, thereby further reducing production costs and improving the utilization rate of resources.

[0055] And according to the above formula and preparation process, the following cases are implemented:

[0056] Example 1 (Optimized formula + Intelligent equipment)

[0057] Raw materials: 60 parts of high-purity titanium powder; 9 parts of titanium-containing composite waste; 4 parts of silicon carbide whiskers; 6 parts of nano-ceramic particles; 5 parts of reinforcing fibers; 2 parts of rubber; 1.0 part of graphene; 0.15 part of pore-forming agent; 1.6 parts of antioxidant; 1.2 parts of sintering agent; 1.3 parts of catalyst; 1.5 parts of self-healing agent; 1.8 parts of conductive enhancer; 1.1 parts of colorant.

[0058] Preparation process: The conditions of the reaction kettle are temperature 1050 °C, pressure 45 MPa, vacuum degree 10 -4 Pa; the stirring speed is 450 r / min in the initial stage, 1100 r / min in the middle stage, and 850 r / min in the later stage.

[0059] Example 2 (High recovery rate + Low-temperature process)

[0060] Raw materials: 60 parts of high-purity titanium powder; 9 parts of titanium-containing composite waste; 3 parts of silicon carbide whiskers; 7 parts of nano-ceramic particles; 5 parts of reinforcing fibers; 1.5 parts of rubber; 1.0 part of graphene; 0.09 part of pore-forming agent; 1.5 parts of antioxidant; 0.7 part of sintering agent; 1.6 parts of catalyst; 1.5 parts of self-healing agent; 2.1 parts of conductive enhancer; 1.4 parts of colorant.

[0061] Preparation process: Melting temperature is 980 °C, pressure is 30 MPa, and a new microwave-assisted sintering at 2.45 GHz is added.

[0062] Comparative Example 1 (Traditional formula + Conventional equipment)

[0063] Raw materials: High titanium-containing composite material, reinforcing fiber, ordinary carbon fiber 1 μm.

[0064] Preparation process: Melting temperature is 1200 °C, without a vacuum system, and the stirring speed is fixed at 800 r / min.

[0065] Comparative Example 2 (Without functional additives)

[0066] Raw materials: Only the base materials titanium powder + silicon carbide whiskers are retained.

[0067] Preparation process: All additives are removed, the proportion of recycled waste is 5%, there is no vacuum protection for process defects, and the single-stage pressure is 50 MPa.

[0068] The following is Table 2 for the comparison of the mass properties of the titanium-containing composite materials prepared by the examples and the comparative examples:

[0069] Table 2

[0070] Test Index Example 1 Example 2 Comparative Example 1 Comparative Example 2 Tensile Strength (MPa) 1250 1100 850 620 <![CDATA[Fracture toughness (MPa·m 1 / 2 )]]> 95 82 45 28 Corrosion Rate (mm / year) 0.008 0.012 0.15 0.35 Conductivity (S / m) <![CDATA[1.2×10 6 > <![CDATA[8×10 5 > <![CDATA[3×10 4 > <![CDATA[1×10 3 > Self-healing Efficiency (%) 92 (3 cycles) 85 (3 cycles) - - Recycling Utilization Rate (%) 95 97 30 10 Energy Consumption (kWh / kg) 18 15 45 60 Comprehensive Cost (yuan / kg) 680 550 1200 950

[0071] According to the analysis of Table 2 above: Through vacuum technology in Examples 1-2, the recovery rate is increased to over 95%. In Comparative Example 1, due to the absence of vacuum technology, the waste materials are severely oxidized and cannot be effectively recycled. In Example 1, the self-healing agent extends the fatigue life of the finished composite material by 3 times (the strength retention rate after 10 7 cycles is 88%). In Comparative Example 2, due to the absence of this function, obvious early crack propagation occurs in its finished product. Among them, the synergistic effect of the conductive enhancer increases the conductivity of the examples by 2 orders of magnitude. The sintering agent reduces the energy consumption of Example 2 to 33% of the traditional process, and vacuum melting reduces the generation amount of oxidation slag by 70%.

[0072] Summary: Therefore, the formulation design with recycled titanium waste + functional additives improves the comprehensive performance by 40% - 60%. The transformation of intelligent equipment reduces the energy consumption by 58% and the production cost by 42%. The self-healing agent enables the self-healing function of the finished composite material to extend the material life, and the performance attenuation after 5 regenerations is < 15%.

[0073] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A recyclable titanium powder-containing composite material, characterized in that, It includes the following steps: Step 1, optimize the formula: Prepare high-purity titanium powder, titanium-containing composite waste, silicon carbide whiskers, nano-ceramic particles, reinforcing fibers, rubber, graphene, pore-forming agent, antioxidant, sintering agent, catalyst, self-healing agent, conductive enhancer and colorant, and optimize the mass fraction ratio; Step 2, prepare materials: Weigh the materials in the formula mass fraction for standby; Step 3, optimize the equipment: Optimize the original reaction equipment, and add a heating system, a pressurizing system and a cooling system to the reaction kettle; Step 4, add recycling equipment: Add a jaw crusher, screening equipment, magnetic separation equipment and cleaning equipment at the beginning of production, and add an unqualified composite material collection device at the end of production, and connect it to the screening equipment, magnetic separation equipment and cleaning equipment through a conveyor belt; Step 5, set reaction parameters: Set the reaction kettle conditions, including the temperature, pressure, vacuum degree and stirring speed during the reaction process. Among them, the stirring speed needs to be set according to different reaction stages, specifically divided into three stages: the initial stage, the middle stage and the later stage of the reaction; Step 6, add raw materials: According to the three stages of the initial stage, the middle stage and the later stage of the reaction, add the formula materials in sequence, and start the reaction in combination with the reaction parameters in Step 4; Step 7, cooling and forming: After the reaction is completed, turn off the heating and pressurizing systems in the reaction kettle, turn on the cooling system, and cool the composite material generated by the reaction to room temperature through the cooling system; Step 8, quality inspection: Conduct quality inspection on the cooled composite material; Step 9, establish a recyclable recycling system: Treat the unqualified composite materials produced and the recycled titanium-containing composite waste according to the steps of adding recycling equipment above, and convert them into composite material raw materials that can be reused.

2. The recyclable titanium powder-containing composite material according to claim 1, wherein: The formula in Step 1 is composed of basic materials, auxiliary materials and additives. The materials and their mass fractions are: 55-65 parts of high-purity titanium powder; 8-10 parts of titanium-containing composite waste; 2-5 parts of silicon carbide whiskers; 4-7 parts of nano-ceramic particles; 3-6 parts of reinforcing fibers; 1-3 parts of rubber; 0.5-1.3 parts of graphene; 0.05-0.21 parts of pore-forming agent; 1.3-2.0 parts of antioxidant; 0.6-1.6 parts of sintering agent; 0.9-1.7 parts of catalyst; 1.2-1.8 parts of self-healing agent; 1.2-2.3 parts of conductive enhancer; 0.8-1.4 parts of colorant.

3. The recyclable titanium powder-containing composite material according to claim 2, characterized in that: The high-purity titanium powder and titanium-containing composite waste form the basic materials, the silicon carbide whiskers, nano-ceramic particles, reinforcing fibers, rubber, graphene and pore-forming agent form the auxiliary materials, and the antioxidant, sintering agent, catalyst, self-healing agent, conductive enhancer and colorant form the additives.

4. A titanium powder-containing composite material that can be recycled, characterized in that: The reinforcing fiber is selected from one or two of nano-carbon fiber and nano-glass fiber, and the rubber is selected from one or two of nitrile rubber and silicone rubber.

5. A titanium powder-containing composite material that can be recycled, characterized in that: The improvement of the reaction equipment in Step 3: Add a high-temperature melting device, introduce vacuum melting technology, add a stirring device, install an automatic control system, and monitor the reaction parameters in real time.

6. The recyclable titanium powder-containing composite material according to claim 1, wherein: In the fourth step, the jaw crusher crushes the collected waste titanium-containing parts or scraps into particles with a particle size of ≤5 mm. The screening equipment passes the crushed particles through a sieve with a pore size of 0.5 - 1 mm. The magnetic separation equipment removes ferromagnetic impurities from the particles. The cleaning equipment cleans the oil stains and dust on the surface of the particles through an ultrasonic cleaner. The unqualified material collection device collects the unqualified materials in the finished product.

7. The recyclable titanium powder-containing composite material according to claim 1, wherein: In the fifth step, the temperature is set at 1000°C - 1100°C, the heating rate is 10°C / min, and the holding time is set at 2 - 3 h.

8. A recyclable titanium powder-containing composite material according to claim 1, characterized in that: In step five, the pressure is set to 30 - 50 MPa, and the pressure is applied in stages, 30 - 40 MPa in the initial stage of forming and 40 - 50 MPa in the later stage of forming. The vacuum degree is maintained at 10 -4 Pa.

9. A recyclable titanium powder-containing composite material according to claim 1, characterized in that: In the fifth step, the stirring speed in the initial stage of the reaction is set at 400 - 500 r / min, the stirring speed in the middle stage of the reaction is set at 1000 - 1200 r / min, and the stirring speed in the later stage of the reaction is set at 800 - 900 r / min.

10. A recyclable titanium powder-containing composite material according to claim 1, characterized in that: In the sixth step, raw materials are added: according to the three stages of the initial, middle, and later stages of the reaction, the formulated materials are added in sequence. In the initial stage of the reaction, weighed high-purity titanium powder, titanium-containing composite waste, and catalyst are added. In the middle stage of the reaction, silicon carbide whiskers, nano-ceramic particles, reinforcing fibers, rubber, graphene, pore-forming agent, sintering agent, and conductive enhancer are added. In the later stage of the reaction, self-healing agent and colorant are added.

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