13results about How to "Guaranteed plasticity" patented technology

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 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 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 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 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 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 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.

This invention provides a rare-earth thermal insulation coating suitable for carbon steel substrates and its preparation method. The coating comprises a metal transition underlayer and a thermal insulation surface layer disposed on the surface of the carbon steel substrate. The thermal insulation surface layer comprises 30-50 parts rare-earth hollow spheres, 10-20 parts hollow ceramic microspheres, 2-5 parts filler, 30-40 parts inorganic binder, and 10-20 parts water. This invention employs a composite structure design of "metal transition underlayer - thermal insulation surface layer," achieving a bonding strength between the coating and the carbon steel substrate exceeding 30 MPa, and resisting over 50 thermal shock cycles at 800℃. The coating has a thermal conductivity ≤0.1 W / (m·K), a reflectivity ≥0.9 at 800℃, a thickness of 200-350 μm, and a thermal insulation temperature difference ≥100℃.

The present application relates to a kind of low carbon equivalent ultra-high strength steel plate and its preparation method, belong to ultra-high strength steel technical field.The low carbon equivalent ultra-high strength steel plate includes C:0.32-0.40%, Si:0.10-0.50%, Mn:0.3-1.5%, P≤0.010%, S≤0.005%, Cr≤1.0%, Mo:0.20-0.50%, Ti:0.04-0.10%, Nb≤0.06%, Al:0.01-0.04%, N≤0.005%, B:0.001-0.004%, and satisfy 1.0%≤Mn+Cr≤1.5%, 0.05%≤Nb+Ti≤0.10%, the rest is Fe.The carbon equivalent CEV of obtained steel plate is ≤0.70%, tensile strength is ≥1900MPa, yield strength is ≥1600MPa, low temperature impact absorption energy KV2 (-40 DEG C) is ≥32J.

The invention relates to the technical field of steel and iron materials, in particular to high-toughness and high-corrosion-resistance steel for a photovoltaic support as well as a preparation method and application of the high-toughness and high-corrosion-resistance steel, and the high-toughness and high-corrosion-resistance steel comprises the following components in percentage by mass: 0.09%-0.15% of C, 0.55%-0.80% of Si, 0.8%-1.1% of Mn, 0.8%-1.2% of Cr, 0.03%-0.06% of Ti, 0.20%-0.60% of Al, 0.01%-0.03% of Nb, less than or equal to 0.006% of S, less than or equal to 0.035% of P and the balance of Fe and inevitable impurities. By adding Al, Ti, Cr and other elements, the strength and corrosion resistance of the steel are improved, finally, the yield strength of the steel is larger than or equal to 500 MPa, the tensile strength is larger than or equal to 600 MPa, the percentage elongation after fracture is larger than 20%, and the minimum corrosion rate is 0.05 g / m < 2 >. H (test standard GB / T10125-2021).

The invention discloses round steel for a 1650MPa-grade hollow stabilizer bar, which contains Fe and inevitable impurities, and further contains the following chemical elements in percentage by mass: 0.33 to 0.41 percent of C, 0.20 to 0.30 percent of Si, 1.30 to 1.50 percent of Mn, 0.15 to 0.35 percent of Cr, 0.025 to 0.035 percent of Al, 0.03 to 0.04 percent of Ti, 0.002 to 0.003 percent of B and 0.02 to 0.10 percent of V. And does not contain Mo. The invention further discloses a hollow stabilizer bar which is made of the round steel for the stabilizer bar. The invention also discloses a manufacturing method of the round steel for the hollow stabilizer bar and the hollow stabilizer bar. The manufacturing method comprises the following steps: smelting and casting; heating is performed; forging or rolling; performing pipe penetration and cold drawing; normalizing is conducted; and quenching and tempering.