39results about How to "Guaranteed plasticity" patented technology

The invention discloses a TC18 titanium alloy organization service performance consistency heat treatment process method, belongs to the field of metal material heat treatment technology, which includes the following steps: the first step of heat treatment: single-phase zone heating, using TC18 titanium alloy, TC18 titanium alloy is kept at Tβ-40℃ for 1h according to the air burning heat treatment process, heated to [Tβ+15℃, Tβ+35℃] for 0-4h, and cooled to room temperature; the second step of heat treatment: double annealing, the cooled TC18 titanium alloy is heated to 820-850℃ for 1-3h and then furnace cooled, after furnace cooling, kept at 740-760℃ for 1-3h and then air cooled, after air cooling, kept at 600-620℃ for 2-6h and then air cooled to room temperature. The present invention selects different insulation temperatures and times, regulates the equiaxed α grain size of TC18 titanium alloy, and determines the heat treatment process parameters, so that the TC18 titanium alloy has both high tensile strength and good strength and fracture toughness.

The invention relates to the technical field of metallurgy, in particular to a heat treatment process for improving the HIC resistance of a Q345R (HIC) steel plate, which comprises the following steps of: heating the steel plate to 30-50 DEG C above AC3, keeping in-furnace time for more than or equal to 30 minutes, and then cooling in two stages: in the first stage, quickly cooling, namely cooling to Ar1 temperature at the speed of 25-30 DEG C / s; in the second stage, the cooling speed is reduced, and cooling is conducted to the Bs temperature at the speed of 2-5 DEG C / s; and then air-cooling to room temperature. The phase change degree of the steel plate is controlled by adopting a two-stage cooling mode, so that the final structure of the steel plate is changed, the purposes of reducing the banded structure and improving the acid resistance of the Q345R (HIC) steel plate are achieved, and good social and economic benefits are achieved.

The invention discloses a Ti-V-Zr-Cr-Al series ultrahigh-strength near-beta titanium alloy and a preparation method, and belongs to the technical field of titanium alloy materials, the ultrahigh-strength near-beta titanium alloy comprises, by mass, 5.0%-5.5% of Al, 11.0%-11.5% of V, 2.5%-3.0% of Cr, 4.5%-5.0% of Zr and the balance Ti and inevitable impurity elements; in the preparation process, firstly, an alloy ingot is subjected to blooming forging and cooled to a phase transformation point for upsetting forging, a certain amount of primary alpha phases are formed in the alloy and evenly distributed in beta crystal grains, and a titanium alloy forging stock is obtained; and then the titanium alloy forging stock is sequentially subjected to solution treatment and aging treatment, and the near-beta ultra-high-strength titanium alloy of the double-state structure is obtained. The tensile strength exceeds 1800 MPa, the yield strength reaches 1780 MPa, the elongation at break is larger than 3.2%, and the uniform elongation is larger than 2.8%. Particularly, the tensile strength reaches 1800 MPa, the requirements of the fields of aerospace, the energy industry and the like can be met, and high use value and popularization value are achieved.

The invention provides a heat-treatment-free die-casting Al-Si alloy and a preparation method and application thereof. The heat treatment-free die-casting Al-Si alloy comprises the following components in percentage by weight: 8.10 to 10.30 percent of Si, 0.50 to 0.57 percent of Mn, 0 to 0.5 percent of Fe, 0.26 to 0.35 percent of Mg, 0.0045 to 0.0083 percent of B, 0.10 to 0.30 percent of Ti, less than or equal to 0.005 percent of Na, less than or equal to 0.005 percent of K, less than or equal to 0.005 percent of P and the balance of Al. The preparation method of the heat-treatment-free die-casting Al-Si alloy is low in cost and short in process, the obtained alloy is few in structure defect and excellent in mechanical property, and the tensile strength, the yield strength and the ductility are 310 MPa-340 MPa, 170 MPa-200 MPa and 10%-15% respectively.

The invention provides a production method of round steel, a sleeve and a connecting method of the sleeve and a steel bar. The round steel in the production method comprises the following chemical components in percentage by mass: 0.42 to 0.52 percent of C, 0.90 to 1.30 percent of Si, 1.30 to 1.60 percent of Mn, 0.025 to 0.050 percent of Nb, 0.01 to 0.02 percent of N and the balance of iron and inevitable impurities. According to the production method, the cooling speed of a casting blank formed after continuous casting is smaller than or equal to 1 DEG C / s, the casting blank is heated at the temperature of 1200-1250 DEG C, then finish rolling is started at the temperature of 800-850 DEG C to obtain round steel, the temperature of the round steel on a cooling bed is 700-800 DEG C, and the cooling speed of the round steel is 10 DEG C / s or below after the round steel is put on the cooling bed. According to the production method provided by the invention, the high-strength round steel is obtained through cooperation of high carbon content and rolling and cooling processes, and the high-strength round steel can be used for machining sleeves capable of being matched with high-strength steel bars.

The invention discloses a toughened waterproof gypsum composition and a preparation method thereof. The toughened waterproof gypsum composition comprises the following components in parts by weight: 80-250 parts of gypsum powder, 54-150 parts of heavy calcium carbonate powder, 60-95 parts of talcum powder, 75-175 parts of light calcium carbonate powder, 80-105 parts of ash calcium powder, 15-55 parts of melamine powder, 25-65 parts of cellulose, 35-85 parts of a retarder, 70-95 parts of a water repellent and 70-95 parts of a toughening agent. A proper amount of a water repellent and a flexibilizer are added in the preparation of the gypsum composition, the water repellent is organic silicon hydrophobic powder, and the organic silicon hydrophobic powder is ternary fine particles and is composed of a powder carrier, a colloid coating material and an organic silicon active component easy to disperse. The colloid wrapping material can stably preserve the active components in the powder and can be timely released after water is added, the dispersity of the organic silicon hydrophobic powder in water is good, and the hydrophobic performance of the material can be improved; and the flexibilizer is used for improving the brittleness of the gypsum and improving the impact resistance of the gypsum.

The application discloses a work clothes identification method combining continuous learning and effectively resisting forgetting disaster, and comprises the following steps: collecting data in an initial stage, constructing a work clothes classification model, and combining data to perform self-supervised training on the work clothes classification model; the trained work clothes classification model is divided into a deep model and a shallow model, an image self-encoder is constructed between the deep model and the shallow model, and the image self-encoder is trained, the intermediate features output by the shallow model are encoded and compressed through the trained image self-encoder, and compressed features are obtained; in a continuous learning task stage, work clothes category data are collected, the compressed features are decoded, and a new model is constructed; based on the new model, a Tt-stage work clothes classification model is constructed through a gradient boosting method, and after training, compression is performed to obtain a final model for work clothes identification; the application alleviates the forgetting degree of the work clothes classification model to old categories, and improves the plasticity of the model.

The invention relates to the technical field of aluminum bronze materials, in particular to a method for improving the cracking tendency of an aluminum bronze material through microalloying, and the method comprises the steps of S1, vacuum induction melting, S2, hot extrusion treatment, S3, cold drawing treatment and S4, stress relief annealing. Other metal elements are added into an aluminum bronze base material, so that the strength, hardness and corrosion resistance of the aluminum bronze material are improved, the toughening material is added, fine second-phase particles are formed, the base body is enhanced, the plasticity and toughness of the material are improved, and the surface cracking tendency of the aluminum bronze material is remarkably reduced; in the vacuum induction melting process, elements can be evenly distributed under the high-temperature condition, and a more even alloy structure is formed; the microstructure of the material can be further optimized through hot extrusion treatment, grains of the material are refined by controlling the extrusion temperature and pressure, the mechanical property of the material is improved, and the cracking tendency of the surface of the aluminum bronze material is reduced through natural cooling.

The invention discloses a customer service management system based on wireless signal transmission, and relates to the technical field of customer service management. Comprising a client, a mobile device capable of realizing remote wireless communication of the client, a server, a database and a server, the server is responsible for receiving and processing requests sent by the client and returning processing results to the client, and the database is used for storing all client information, service requests and processing records. The wireless communication mode between the client and the server can be operator communication based on Telecom, Mobile and Unicom, and can also be network communication, and the client is a smart phone or a tablet personal computer. According to the invention, through the server connected with the client, on one hand, the client can respond to the service demand in time, and then the server carries out service demand matching, so that the demand feedback and demand processing of the client can be timely, and the customer satisfaction can be greatly increased; therefore, the data plasticity is ensured.

The application discloses a V micro-alloyed ultra-high-strength Al-Mg-Si-Cu alloy and a preparation method thereof. The components of the alloy are as follows in percentage by mass: Mg: 1.2-2.0 wt.%, Si: 1.0-1.5 wt.%, Cu: 0.5-1.5 wt.%, Zn: 0.1-0.5 wt.%, Mn: 0.2-0.4 wt.%, V: 0.05-0.4 wt.%, and Fe: less than or equal to 0.2 wt.%. The rest includes Al and inevitable impurities. The preparation process comprises the following steps: smelting, homogenization treatment, rolling and solid solution aging treatment. By synergistically optimizing the content of main alloying elements and introducing V micro-alloying, the mechanical properties of the 6xxx series aluminum alloy plate are broken through, the yield strength is greater than or equal to 370 MPa, the tensile strength is greater than or equal to 420 MPa, and the elongation is greater than or equal to 14%. The alloy plate has the advantages of ultra-high strength, excellent plasticity and low alloy cost, and meets the demand of the transportation field lightweight design for the ultra-high-strength aluminum alloy plate.

The invention discloses an interface material for a biodegradable artificial habitat system and a preparation method of the interface material. The interface material for the biodegradable artificial habitat system is prepared from the following components in percentage by mass: 30 to 80 percent of natural fiber and 20 to 70 percent of biodegradable synthetic fiber. The natural fiber comprises one or a combination of more of straw, coconut fiber, hemp fiber, banana fiber, pineapple fiber or cotton, hemp, silk and wool fiber in waste textile fiber; the biodegradable synthetic fibers are composed of biodegradable polypropylene fibers, biodegradable polyester fibers and polylactic acid fibers. The interface material disclosed by the invention has a plurality of obvious advantages. In the aspect of performance, the material realizes good strength, toughness, air permeability and overall biodegradability of the material through optimal combination of the natural fibers and the biodegradable synthetic fibers and unique action of the induced bioactive enzyme master batch.

The invention belongs to the technical field of V-belts, and particularly relates to an anti-aging V-belt and a production device thereof; wherein the V-belt is made of the following raw materials in parts by weight: 15 to 42 parts of acrylate rubber; 15 to 62 parts of chlorinated polyethylene rubber; 15 to 41 parts of ethylene propylene diene monomer rubber; 0.6 to 1.3 parts of sulfur; 3 to 6 parts of magnesium oxide; 1.5 to 2.2 parts of vulcanization accelerator, 1.8 to 3.2 parts of zinc oxide; 52 to 62 parts of reinforcing agent; 15 to 20 parts of softener; 3 to 5 parts of tackifying resin; 1.5 to 2 parts of antioxidant; 2-10 parts of colorant; wherein the vulcanization accelerator can be 2,2'-dibenzothiazole disulfide accelerator and triazine as the vulcanization accelerator, and the softener can be pine tar, tall oil or poly(butylene adipate); by adding the chlorinated polyethylene rubber, the compatibility of the acrylate rubber and the ethylene propylene diene monomer rubber is improved, thereby ensuring the overall use performance of the produced V-belt.

The invention relates to a high-strength and ultralow-magnetic susceptibility Au-Pt-Pd alloy wire as well as a preparation method and application thereof, and relates to the technical field of new materials. According to the preparation method, through the unique process combination of smelting, homogenization, severe plastic deformation and specific aging, the problem of contradiction between the alloy strength and the ultralow magnetic susceptibility is successfully solved, and the prepared Au-Pt-Pd alloy wire has the strength and the ultralow magnetic susceptibility far higher than those of a traditional Au-Pt alloy and still keeps certain plasticity.

The invention provides plastic ceramic pug added with coffee grounds and a preparation method of the plastic ceramic pug, and belongs to the technical field of ceramic pug. Comprising ceramic pug and a plant matrix infiltrating into the ceramic pug, wherein the ceramic pug is prepared from the following raw material components in volume density: 1300 to 1500 kg / m < 3 > of clay, 250 to 300 kg / m < 3 > of quartz, 100 to 200 kg / m < 3 > of potassium albite, 300 to 500 kg / m < 3 > of coffee grounds, 100 to 200 kg / m < 3 > of latex and 300 to 400 kg / m < 3 > of water; the plant substrate is prepared from the following raw material components in volume density: 70-100 kg / m < 3 > of coffee grounds, 24-40 kg / m < 3 > of water and 1-5 kg / m < 3 > of plant fibers, and the coffee grounds comprise at least one of calcined coffee grounds and uncalcined coffee grounds; the plastic ceramic pug added with the coffee grounds has the characteristics that the materials are easy to obtain, the cost is low, the plant material characteristics of the coffee grounds are fully utilized on the basis of ensuring that the ceramic material can be formed, the pug structure is improved, and new pug is formed after firing.

The application discloses a Ti-V-Zr-Cr-Al system ultrahigh-strength near-beta titanium alloy and a preparation method thereof, and belongs to the technical field of titanium alloy materials. The ultrahigh-strength near-beta titanium alloy contains 5.0-5.5% of Al, 11.0-11.5% of V, 2.5-3.0% of Cr, 4.5-5.0% of Zr, and the balance of Ti and inevitable impurity elements according to mass percentage. In the preparation process, firstly, the alloy ingot is subjected to open forging, and then is subjected to upsetting and drawing forging after being cooled to a phase transition point, so that a certain amount of primary alpha phase is formed in the alloy and is uniformly distributed in beta grains, thereby obtaining a titanium alloy forging blank; and then, the titanium alloy forging blank is sequentially subjected to solid solution treatment and aging treatment, thereby obtaining a near-beta ultrahigh-strength titanium alloy with a duplex structure. The titanium alloy has a tensile strength of more than 1800 MPa, a yield strength of 1780 MPa, a fracture elongation of more than 3.2%, and a uniform elongation of more than 2.8%. In particular, the tensile strength reaches 1800 MPa, and the titanium alloy can meet the requirements of the fields of aerospace, energy industry and the like, and has high use value and popularization value.

The invention provides a 600MPa-grade high-strength anti-seismic reinforcing steel bar and a production method thereof. The reinforcing steel bar is prepared from 0.20%-0.30% of C, 0.10%-0.30% of Si, 1.00%-2.00% of Mn, 0.1%-0.2% of V, 0.01%-0.03% of Nb, 0.015%-0.025% of N, at least one of Cr, Cu and B, 0.1%-0.3% of Cr, 0.001%-0.010% of B, 0.1%-0.3% of Cu and the balance iron and impurities, and ([Cr] + [B] + [Cu]) / [Si] is larger than or equal to 1 and smaller than or equal to 2. In the production method, the temperature of a soaking zone is 1200-1250 DEG C; the final rolling temperature is higher than 1100 DEG C, water cooling is conducted firstly and then air cooling is conducted to the room temperature after rolling, the cooling speed during water cooling is 2-5 DEG C / s, the temperature of a steel bar on a cooling bed is 1040-1080 DEG C, and the cooling speed during natural cooling is lower than 1 DEG C / s.

The invention discloses a method for dispersion strengthening of a FeCrAl-based alloy through nano ZrC, and belongs to the technical field of powder metallurgy. According to the method, nano ZrC powder is doped into the FeCrAl-based alloy, and the carbide dispersion strengthening alloy (the nano ZrC dispersion strengthening FeCrAl-based alloy) is prepared through mechanical alloying and spark plasma sintering, so that the original plasticity of the material is kept, and the strength of the material is improved; the yield strength and the tensile strength of the FeCrAl-based alloy are obviously optimized, the tensile strength can reach 1058 MPa, the overall mechanical property of the FeCrAl-based alloy is improved, and the FeCrAl-based alloy has stable mechanical property in a high-temperature long-time exposure environment and is expected to be widely applied to the engineering field.

The invention relates to the technical field of steel and iron smelting, in particular to a high-quality special steel continuous casting billet warm charging production process which comprises the steps of converter smelting, external refining, continuous casting, casting billet treatment, rolling and cooling. Wherein the casting blank treatment adopts a process of combining hot feeding and warm charging. According to the production process for warm charging of the high-quality special steel continuous casting billets, the mode that the hot delivery process and the warm charging process are combined is adopted, the charging temperature range is enlarged, the charging freedom degree and operation efficiency are improved, energy consumption is finally saved, the requirement for energy saving can be met, the quality of the core and the surface of steel can be improved, and the production cost is reduced. And the production efficiency and the quality of high-quality special steel are improved.

The invention discloses a preparation method of an aluminum foil blank for a high-strength 8021 battery soft package, and belongs to the technical field of aluminum alloy processing. According to the method, an 8021 alloy cast ingot serves as a raw material, hot rolling, segmented cold rolling, medium and low temperature intermediate annealing, finish rolling and other procedures are carried out, and the high-strength aluminum foil blank is prepared by optimizing rolling reduction distribution and roll surface roughness. The tensile strength of the obtained blank is larger than or equal to 170 MPa, the plasticity and the surface quality are excellent, the process energy consumption is lower, equipment does not need to be newly added, and the method is suitable for industrial production of the aluminum foil blank for the high-end soft package lithium battery aluminum-plastic film.

The present invention discloses an image classification method based on multi-level adaptive feature fusion incremental learning, including step 1, the first training, obtaining the first image sample set and the first model after training; step 2, when a new type needs to be identified, incremental update is performed, and after the Mth incremental update, the M+1th model and the fusion coefficient of the Mth model and the M+1th model are obtained; M represents the number of incremental updates, which is a natural number greater than or equal to 1; step 3, during testing, the M+1th model and the Mth model are used to perform feature fusion according to the fusion coefficient, and the prediction result is output. This method solves the problem that the current object recognition algorithm cannot continuously learn new categories and new knowledge, and the incremental learning algorithm cannot effectively utilize the information of the old model and forgets the old knowledge to a large extent.

The invention provides a magnesium alloy conical barrel and an extrusion forging forming method and application thereof, and belongs to the technical field of magnesium alloy. The extrusion forging forming method for the magnesium alloy conical barrel comprises the following steps that a magnesium alloy cast ingot is subjected to annealing treatment, and an annealed cast ingot is obtained; carrying out hot extrusion on the annealed cast ingot to obtain an extruded bar; the extrusion bar is subjected to upsetting and die forging in sequence, and a conical barrel is obtained; and the conical barrel is subjected to T6 heat treatment, and the magnesium alloy conical barrel is obtained. According to the method, hot extrusion is adopted, casting defects in the alloy are eliminated, the alloy structure is improved, meanwhile, the surface layer of the cast ingot is removed, a core high-quality area is reserved, the plasticity of subsequent deformation is guaranteed, and the cracking risk is reduced; then heading is carried out, so that the stability of the alloy can be improved, and subsequent forming of the die forging conical barrel is facilitated; and then die forging is conducted, the structure uniformity is improved, and therefore the mechanical property of the magnesium alloy is improved.

The invention relates to 550MPa-grade high-strength high-fracture-toughness weather-resistant bridge steel and a preparation method thereof, and belongs to the technical field of steel for bridge structures. The problems that existing 550MPa bridge steel is poor in strength, low-temperature fracture toughness and weldability matching and cannot have high strength, high fracture toughness and weldability at the same time are solved. The invention relates to 550MPa-grade high-strength high-fracture-toughness weather-resistant bridge steel, which comprises the following chemical components in percentage by mass: 0.06 to 0.11 percent of C, 0.20 to 0.40 percent of Si, 0.90 to 1.50 percent of Mn, 0.40 to 0.60 percent of Cr, 0.3 to 1.1 percent of Ni, 0.30 to 0.45 percent of Cu, 0.20 to 0.40 percent of Mo, 0.02 to 0.04 percent of Nb, 0.010 to 0.020 percent of Ti and the balance of Fe and inevitable impurities. The prepared steel has excellent mechanical property, fracture toughness and weldability.

The utility model discloses an efficient plastic vacuum forming machine, a plastic vacuum forming material heating structure comprises a support and a heating block fixed on the support, a plastic vacuum forming material clamping structure further comprises a clamping pressing block connected to the support through a spring, and when the heating block is pressed downwards, the plastic vacuum forming material is pre-pressed; a groove is upwards formed in the heating block, the side wall of the groove is an inclined surface, a plurality of vent holes are formed in the inner wall of the recess, and a channel communicated with the vent holes is formed in the inner wall of the heating block; the plastic uptake mold structure comprises a mold block, a plastic uptake hole and a blow molding hole are formed in the mold block, a heating wire is wound outside the mold, and a cooling water channel is formed in the mold. The plastic uptake material preheating device is simple in structure, plastic uptake materials can be positioned during preheating, then the heating block descends, and after heating is completed, the heating block ascends, but positioning of the plastic uptake materials cannot be relieved.

The invention relates to the field of titanium alloy materials, in particular to an alpha + beta type easy-to-form high-strength titanium alloy containing active eutectoid elements and a preparation method. The titanium alloy comprises the following chemical components in percentage by mass: 5.0%-7.0% of an Al element, 2.0%-4.0% of an Nb element, 1.0%-3.0% of a Mo element, 1.0%-3.0% of a V element, 1.0%-2.0% of a Zr element, 3.0%-6.0% of a Cu element and the balance of Ti. Alpha + beta type easy-to-form high-strength titanium alloys with different strength levels are obtained according to the content of the Cu element, a nano Ti2Cu compound is rapidly formed at the eutectoid temperature by adding a high-activity eutectoid beta stable element Cu, the precipitation proportion of Ti2Cu is regulated and controlled by adjusting the content of Cu, and then the strength of the titanium alloy is regulated and controlled. The method can be widely applied to the important fields of aerospace, ocean engineering, weaponry, petrochemical engineering, automobile industry, biomedical treatment and the like.

The invention relates to the technical field of martensitic steel, in particular to a 04Cr16Ni5Mo stainless steel plate rolling and temperature control technology, in the technology, a three-section heating mode (the preheating rate is smaller than or equal to 4 DEG C / min, and the soaking time is larger than or equal to 2.5 h) is adopted in a heating method, inert gas is introduced, the low heat conduction characteristic of 04Cr16Ni5Mo is adapted, the temperature difference between the surface layer and the center is reduced, thermal stress cracks are avoided, and the temperature control performance of the 04Cr16Ni5Mo stainless steel plate is improved. The problem of insufficient physical performance adaptation is solved; differential temperature and heat preservation time are set for heat treatment, various heat treatment requirements of the steel type are accurately matched, and the problem that heat treatment processes are not matched is solved; the whole process cooperates with blank pretreatment to remove defects, straighten to control flatness and slow cooling to control structures, the quality of finished products is further guaranteed, generation of a corrosion source after rolling and deformation after heat treatment are avoided, and the corrosion resistance and structural stability of steel are improved.

The utility model relates to the technical field of underwear, and particularly discloses a steel ring traceless bra structure which comprises a bra main body, and cups used for covering the breasts of a user are arranged on the bra main body. The bra is characterized by further comprising an adhesive layer, elastic binding strips are arranged on the bra body or / and the cups, and the elastic binding strips are connected with the bra body or / and the cups in a press fit mode through the adhesive layer. The elastic binding strips are arranged in an arc shape, are positioned below the cups and are used for supporting the breasts of a user. Due to the fact that traditional seams are not adopted, traces of the steel rings of the bra cannot be highlighted. The seamless connection of the steel ring and the bra main body is realized while the supporting and shaping effects of the steel ring are ensured, so that the steel ring is prevented from being traced on a coat, the wearing attractiveness of the bra is improved, and the discomfort caused by the traditional steel ring and a seam is reduced.

The present invention provides a die-casting extrusion control method and system, which relates to the field of die-casting technology. The method includes determining the grade of the extrusion pin according to the structural data of the cavity and the position information of the extrusion pin, and a plurality of extrusion pins are arranged on the movable mold and the fixed mold of the die-casting mold; when the die-casting starts, one end of the extrusion pin is controlled to enter the cavity, the exhaust device is controlled to start, and the real-time temperature distribution diagram in the cavity is obtained; according to the real-time temperature distribution diagram and the position information of the extrusion pin, the extrusion pin is controlled to move in the direction away from the cavity; according to the real-time temperature distribution diagram, the temperature difference between the outer layer temperature and the inner layer temperature in the cavity in the direction of the extension line of the extrusion pin axis is analyzed; according to the temperature difference and the grade of the extrusion pin, the pressure of the extrusion pin and the temperature of the heating element are controlled, and the heating element is set corresponding to the extrusion pin. The heating element is controlled to keep the metal plastic, and the extrusion pin is controlled to apply pressure to compensate for the volume difference caused by cold shrinkage, so as to avoid the generation of shrinkage or shrinkage cavity.

The invention discloses a molybdenum-rhenium alloy and a preparation method thereof. Belongs to the alloy field. The preparation method of the molybdenum-rhenium alloy provided by the invention comprises the following steps: smelting molybdenum-rhenium-lanthanum oxide alloy powder by adopting a vacuum electric arc to prepare a molybdenum-rhenium alloy casting blank; machining the molybdenum-rhenium alloy casting blank to obtain a molybdenum-rhenium alloy plate; the molybdenum-rhenium alloy plate is subjected to pre-strain plastic deformation treatment at the temperature of 25-1500 DEG C, and the molybdenum-rhenium alloy is obtained; the pre-strain plastic deformation treatment comprises the following steps: unloading to a zero stress state after applying 0.25%-2.5% of pre-strain quantity each time, and circulating for 100-1000 times. According to the molybdenum-rhenium alloy for improving the alpha texture strength through the deformation cumulative effect, the strength of the molybdenum-rhenium alloy with the low rhenium content is remarkably improved, the dosage dependence of rhenium resources is greatly reduced, and the production cost is reduced.

The utility model discloses a device and a method for assisting correction of a spectacle frame. The device comprises a workbench, a heating assembly and a cooling assembly, the workbench comprises an operation platform used for placing a to-be-corrected spectacle frame, the heating assembly comprises a heating box and a first transmission box, a heating platform is arranged in the heating box, and a plurality of heating stations used for placing the to-be-heated spectacle frame before correction are arranged on the heating platform; the middle position of the bottom of the heating platform is in transmission connection with a first rotating motor arranged in the first transmission box. The cooling assembly comprises a cooling box and a second transmission box, a cooling platform is arranged in the cooling box, a plurality of cooling stations used for placing the corrected to-be-cooled glasses frame are arranged on the cooling platform, and the middle position of the bottom of the cooling platform is in transmission connection with a second rotating motor arranged in the second transmission box.

The invention relates to an image classification method based on incremental learning. The method comprises the following steps: collecting a multi-modal data set and dividing the multi-modal data set into a basic data set and an incremental data set; the multi-modal data set at least comprises image data and text data; constructing an image classification model; inputting the basic data set into an image classification model for training, storing a training weight, and then inputting the incremental data set into the trained image classification model for incremental learning to obtain a trained image classification model; image data to be classified are obtained and preprocessed, and then the image data are input into the model to obtain a corresponding classification result. According to the method, efficient balance of new and old knowledge and inhibition of disastrous forgetting are realized by optimizing learnable prompts and multi-modal fusion, and the model performance and practicability are improved on the premise of avoiding dependence on data caching and not remarkably increasing the parameter quantity.