16results about How to "Reduce quality loss" patented technology

This invention relates to a method for identifying and controlling scratch defects in cold-rolled high-strength steel, belonging to the technical field of metallurgical control methods. The technical solution of this invention is: a method for statistically analyzing and identifying the morphological characteristics of scratches in different processes of continuous casting, hot rolling, and pickling, as well as corresponding process control schemes, to comprehensively control key control points in each process. The beneficial effects of this invention are: by providing a method for identifying the morphological characteristics of scratches in different processes, and a control scheme for scratches in different processes, it effectively controls scratch defects in finished products, improves product quality, reduces quality losses, and simultaneously increases contract fulfillment rates.

The invention discloses a manufacturing process sensing and quality control method and device based on multiple modes, and the method comprises the steps: collecting the multi-mode sensing data in the manufacturing process, and the multi-mode sensing data comprise image data, sound or vibration data and thermal imaging data; extracting process features corresponding to each mode based on the multi-mode perception data, and performing adaptive fusion on the process features of each mode based on an attention mechanism to generate a fusion feature vector; inputting the fusion feature vector and the current process parameter into a quality prediction model to obtain a prediction result of a preset quality index, and determining an influence relationship of the process parameter on the preset quality index based on the quality prediction model; and based on the prediction result, the influence relationship and a preset control target, optimizing and adjusting the process parameters so as to carry out feedforward control on the manufacturing process. Through multi-modal sensing, feature fusion and model prediction, online feedforward closed-loop control in the manufacturing process is realized, and the product quality consistency and the production efficiency are improved.

The application discloses a layered scheduling optimization method and platform for multi-resource dynamic balancing of engineering projects, and belongs to the technical field of engineering project scheduling optimization. The method comprises the following steps: an engineering project data model containing an activity directed acyclic graph, multi-type resource requirements and milestone constraints is established; a resource coupling coefficient is calculated, and a feasible time window in the form of a multi-section closed interval union is generated for each activity; a resource pool quota is allocated among projects according to a resource urgency index at a strategic layer; adaptive rolling rescheduling is started according to four types of trigger conditions at an operation layer; and a cross-layer bidirectional closed loop is formed through step-by-step feedback. The platform comprises the following modules: a multi-source data acquisition module, a biological meteorological window management module, a resource demand prediction module, a three-layer scheduling engine module and the like. The application can simultaneously realize single-resource balancing and cross-resource collaboration, so that the scheduling result has biological meteorological sensitivity, and can quickly respond when a disturbance arrives, thereby relieving on-site work, improving resource pool utilization and reducing the deviation of the construction period.

The invention discloses a direct mass spectrometry device and method for trace uranium in a water body, and relates to the technical field of analys.The method comprises the steps that a gel film is soaked in uranium-containing wastewater and taken out, a tip is cut out, and the uranium-adsorbed gel film is obtained; dropwise adding an extracting agent on the gel film, and then applying high voltage on the gel film, so that uranium adsorbed on the gel film is extracted and moves towards the tip along with the solvent to form spray; uranium is ionized in the form of uranyl acetate and detected by a mass spectrum detection system; according to the invention, accurate analysis of trace uranium can be realized, and mass loss of uranium in a water sample due to links such as sample treatment and preservation is avoided. The device can be applied to various complex water environments, and direct mass spectrometry can be realized only by shearing gel into a triangular shape with a tip and applying voltage and an extracting agent during analysis. And the method has the advantages of high analysis speed, good linear relationship, low detection limit and the like.

The application discloses a device and method for detecting the edge of glass by using a line scanning camera, a first plane mirror conversion compensation system is installed between the flat glass to be detected and the scanning camera; a second plane mirror conversion compensation system is installed inside the scanning camera; the first plane mirror conversion compensation system is used for converting the three-dimensional light path of the edge of the flat glass to be detected into a collinear coplanar light path; the second plane mirror conversion compensation system is used for collinearly and coplanarly radiating the three-dimensional light path of the edge of the flat glass to be detected into the central line of the scanning camera sensor; through the three-dimensional space formed by the two sides and the middle end surface side of the edge of the flat glass, the light and shade field two kinds of light sources are used for illumination, the light path system is converted and compensated by means of twice plane mirror reflection, the three light beams of the three-dimensional space of the edge of the glass are precisely compensated and converted into a collinear coplanar light path, and the collinear coplanar light path is guided into the sensor of the line scanning camera, so that the high-precision detection of the falling piece, crack and grinding quality state of the edge of the glass is realized.

The invention relates to the technical field of production control, in particular to a mining instrument production line control system and method based on adaptive scheduling and multi-protocol fusion, and the method executed by the system comprises the steps: 1, triggering a production task according to an order; 2, analyzing a production task, disassembling the production task into a plurality of sub-tasks, distributing the sub-tasks to different stations to implement production, and monitoring the state of each station in real time; wherein in the production process, the production mode is adjusted in real time according to the order priority and the production state of each station. Through the adaptive task scheduling engine, the system can dynamically optimize the task allocation and execution sequence according to the real-time production state, and effectively cope with disturbances such as emergency order insertion and equipment faults.

The invention relates to the technical field of electrical contact materials, in particular to a SnO2 electrical contact material for a new energy electrical appliance and a preparation method of the SnO2 electrical contact material. The SnO2 electrical contact material comprises 8-15% of tin oxide, 0.5-3% of a composite additive, 0.1-2% of an accelerant and the balance of silver. According to the invention, yttrium ions and chromium ions can be partially dissolved in tin oxide crystal lattices, so that the thermal decomposition reaction of tin oxide at extremely high arc temperature is effectively inhibited, the material loss caused by tin element volatilization is reduced, the second additive generates a high-melting-point composite oxide phase after high-temperature calcination, and the high-melting-point composite oxide phase is uniformly distributed in a silver matrix; as a physical skeleton for resisting arc erosion, the accelerant mainly plays a role in dispersing and interface optimizing, and an interface compound containing zinc, lanthanum, boron and oxygen is formed after the accelerant is calcined, so that the wettability and binding force between tin oxide particles and a silver matrix are improved, uniform distribution of the tin oxide particles is ensured, local overheating and concentrated erosion are avoided, and the service life of the tin oxide particles is prolonged. Therefore, the mass loss of arc ablation is obviously reduced.

The application provides a nanocellulose-based edible preservative liquid, a preparation method and a use method thereof. The nanocellulose-based edible preservative liquid comprises a nanocellulose solution, beeswax and glycerol. The preparation method comprises the following steps: mixing the nanocellulose solution, the beeswax and the glycerol according to a proportion and heating to melt the beeswax to obtain a mixed liquid; then, stirring and emulsifying the mixed liquid to obtain a nanocellulose emulsion; finally, performing vacuum defoaming treatment on the nanocellulose emulsion to obtain the nanocellulose-based edible preservative liquid. The application develops an edible and easy-to-wash preservative liquid based on nanocellulose, adopts a dipping coating mode to perform coating film treatment on fruits and vegetables, forms a micro-nano level preservative coating layer on the surface of the fruits and vegetables, can effectively reduce the loss of water and nutrients on the surface and inside of the fruits and vegetables, reduces the gas permeability of the preservative coating layer, and significantly enhances the mechanical strength of the preservative coating layer.

This invention discloses a silicon carbide fiber precursor polycarbosilane and its preparation method, belonging to the field of polycarbosilane preparation technology. The preparation method of the silicon carbide fiber precursor polycarbosilane includes the following steps: Step 1: Preparing a Grignard reagent; Step 2: Adding an organic alkane to tetrahydrofuran, stirring and mixing, then slowly adding it to the Grignard reagent, stirring and reacting; after the reaction is complete, heating to room temperature, adding a composite organic auxiliary agent, stirring and reacting; after the reaction is complete, quenching the reaction, separating the liquids, washing, and drying to obtain a prepolymer; Step 3: After vacuum distillation of the prepolymer, transferring it to a reaction vessel, heating and polymerizing it under argon atmosphere; after the reaction is complete, adding it to toluene, dissolving, filtering, precipitating, and drying to obtain the silicon carbide fiber precursor polycarbosilane. The polycarbosilane prepared by the above method has excellent thermal stability and high-temperature mechanical properties.

This invention discloses an optimization method for the collaborative operation of multiple types of precooling facilities for fresh figs, relating to the field of agricultural informatization and intelligent technology. The method includes: constructing an operations research-based optimization model based on multiple precooling methods, with the objective function being minimizing the total cost of the combined operation of multiple precooling methods. The model's constraints include: precooling cost constraints for each precooling method's corresponding precooling facility, upper limits on transportation equipment working time and transportation costs, and precooling capacity constraints for each precooling facility; obtaining precooling service scenario parameters and basic precooling operation parameters and inputting them into the model; and solving the model using an improved ALNS algorithm to obtain the optimal precooling operation scheme under the combined operation mode of multiple precooling methods in this precooling service scenario. This invention provides a solution to the problem of collaborative optimization of precooling operations for fresh figs using multiple types of facilities, helping to effectively reduce the cost of precooling operations and improve the operational efficiency and overall value of agricultural product harvesting.

The invention provides a steel production method and system and electronic equipment, and the method comprises the steps: obtaining a plurality of to-be-executed heat numbers and a steel grade corresponding to each to-be-executed heat number, sorting the plurality of to-be-executed heat numbers based on the steel grade numbers to obtain a casting plan, and generating a steel making operation plan based on the steel production casting plan, steel production is carried out according to the steel production steelmaking operation plan, the execution sequence of the to-be-executed heat numbers is formulated based on the steel trademarks corresponding to the to-be-executed heat numbers, production scheduling and scheduling of the casting plan are optimized, actual execution of steelmaking production is guided, quality control of the production process is strengthened, and the production efficiency is improved. And the quality loss in the production process can be effectively reduced.

The invention provides an early warning optimization method, device and equipment for an industrial agent and a storage medium, and the method comprises the steps: training an efficiency prediction model, outputting a future comprehensive efficiency prediction value through the real-time operation data, and comparing the comprehensive efficiency prediction value with a preset early warning threshold value, so as to judge whether to generate an early warning or not, achieve the beforehand intervention, and improve the early warning efficiency. After-event remedy is changed into beforehand prevention, non-planned shutdown and quality loss are avoided, and a prospective basis is provided for production and maintenance scheduling; a prediction object is set to be comprehensive efficiency, a prediction model is configured to learn a mapping relation between operation data and the comprehensive efficiency, through a model library and a fusion mechanism, prediction robustness is improved, the comprehensive application effect is predicted, simple equipment parameters are not needed, and higher value is achieved; besides prediction and early warning, an optimized closed loop is constructed, and the long-term effectiveness of the early warning system in a time-varying environment is ensured.

The utility model relates to the technical field of instruction manual missing detection, and disclose a kind of instruction manual missing detection equipment, including fixed bolster, the top fixed mounting of fixed bolster has support frame, the bottom fixed mounting of one end of support frame has first air cylinder, the output of first air cylinder fixed mounting has mounting seat, the inside movable mounting of mounting seat has mounting plate, the bottom fixed mounting of mounting plate has photoelectric sensor.The utility model compared with traditional equipment, the cooperation between the positioning hole, positioning block, spring and pull rod, it is convenient to install photoelectric sensor, significantly improve the installation efficiency, so that photoelectric sensor can be quickly, accurately positioned and fixed, reduce installation time and labor cost;It also enhances the flexibility of equipment, it is convenient to adjust or replace the position of photoelectric sensor according to actual demand, improves the adaptability of equipment.

The utility model relates to the field of logistics equipment, in particular to a split mounting type logistics box which comprises a box body, the side edge of the box body is composed of four side edge plates and two bottom plates, the two bottom plates are arranged at the top and the bottom of a frame structure formed by the four side edge plates respectively, the two sides of each side edge plate are fixedly connected with two clamping grooves, and the two clamping grooves are fixedly connected with the box body. The outer edges of the upper surfaces of the four side edge plates are fixedly sleeved with fixing assemblies, the fixing assemblies are used for limiting and fixing a square-shaped frame structure formed by splicing the four side edge plates, and the fixing assemblies partially stretch into the clamping grooves and are attached to the splicing gaps of the two side edge plates in a sealed mode. Rainwater is effectively prevented from seeping into the logistics box, goods in the box are protected against moisture and water erosion, it is ensured that the goods are kept dry in the transportation process, mass loss or damage is avoided, the upper spliced logistics box is limited, and when a plurality of spliced logistics boxes are transported, the transportation efficiency is improved. And goods damage caused by collision is avoided.

This invention belongs to the field of three-dimensional weaving control technology and discloses a manufacturing control system for an integrated six-degree-of-freedom manipulator in a three-dimensional weaving composite material processing equipment. Through a parameter twin module, it integrates multiple parameters such as mandrel geometric features, yarn physical properties, and environmental conditions to establish a full-element digital twin model including the weaving machine, manipulator, mandrel, and yarn. Multi-parameter fusion and pre-simulation are used to proactively avoid parameter configuration defects. The collaborative control module utilizes reinforcement learning to establish a dynamically updated parameter association model, integrating multiple parameters and process requirements. Combined with timing coordination and interference verification mechanisms, it automatically optimizes the timing and trajectory parameters of the weaving machine and manipulator's movements. For special mandrel components such as complex curved surfaces and variable cross-sections, it can effectively suppress yarn tension fluctuations, reduce common defects such as fiber slippage and uneven weaving density, and achieve real-time linkage between the physical entity and the virtual model, improving processing consistency.