15results about How to "Ensure process stability" patented technology

The invention relates to the field of aluminum alloy die casting, in particular to a die casting device for aluminum alloy shell machining, which comprises a base, and a tail plate is mounted on one side above the base. The movable mold plate reciprocates in the mold closing process to drive the push rod to drive the piston to move in the sealing tank, so that alternate change of positive pressure and negative pressure is formed in the sealing tank; in the process, the PCL control cabinet cooperatively controls opening and closing of the feeding hole and the discharging hole, automatic extraction and conveying of the liquid raw materials are achieved, and finally the liquid raw materials are injected into the charging barrel. And then, the injection cylinder drives the injection rod to inject the raw materials into the mold closing cavity at high pressure to complete die-casting forming, and the full-automatic process from feeding to forming is achieved. In addition, the screw is driven to move axially by rotating the internal thread cylinder, the initial position and stroke of the piston can be adjusted, and therefore the single suction amount of the sealing tank is changed, the sealing tank can flexibly meet the differentiated requirements of different die-casting parts for the raw material amount, and accurate and controllable feeding is achieved.

This invention provides an intelligent analysis system for photoelectric detection spectral data based on deep learning, belonging to the fields of photoelectric detection, spectral data analysis, and deep learning application technology. The system includes core units such as a spectral data acquisition unit, a preprocessing unit, a feature extraction unit, and a deep learning analysis unit, as well as auxiliary units for anomaly detection and data storage, forming a closed-loop architecture of acquisition-processing-analysis-output-optimization. It improves data quality through step-by-step preprocessing algorithms, reduces computational load by adaptively selecting key features, deeply mines spectral patterns using a model that integrates convolutional neural networks and attention mechanisms, achieves rapid scenario adaptation through transfer learning, and dynamically optimizes model parameters based on a feedback mechanism. The system solves the problems of low accuracy, poor adaptability, and long training cycles in traditional spectral analysis, achieving accurate, efficient, and intelligent spectral data analysis, and is suitable for various photoelectric detection scenarios such as qualitative and quantitative analysis of substances and environmental monitoring.

The invention relates to the technical field of circuit board film pasting, and particularly discloses a PCB film pasting method and film pasting equipment. The method comprises the following steps: assembling a pressing assisting layer and a dry film layer on PCB film pasting equipment; the pressing assisting layer and the dry film layer are conveyed through PCB film pasting equipment, a hot pressing roller on the PCB film pasting equipment is matched with the hard layer in a rotating mode, the pressing assisting layer abuts against the dry film layer, and the soft layer is attached to the polyethylene protective film; the production state of the PCB film pasting equipment is debugged, and debugging of the PCB film pasting equipment is stopped until wrinkles or bubbles do not appear between the auxiliary pressing layer passing through the hot pressing roller and the dry film layer within the preset distance; the PCB film pasting equipment is used for conveying the board to be pasted with the film, the board face of the board to be pasted with the film is attached to the dry film photosensitive layer, and the hot pressing roller is controlled to conduct hot pressing on the dry film layer to the board to be pasted with the film; and taking down the pressing assisting layer passing through the hot-pressing roller to obtain a processed finished product. According to the method, accurate lamination of the dry film layer on the to-be-laminated plate is realized by means of the pressure-assisting layer, and the product yield of film lamination operation is improved.

This invention discloses a culture medium for the biosynthesis of indigoidine and its application, belonging to the field of microbial fermentation and synthetic biology technology. Addressing the problems of low yield, insufficient precursor supply, byproduct accumulation, and poor scale-up stability in existing culture media for indigoidine fermentation, this invention provides a core culture medium system. This medium, per 1L, includes: 10-50g carbon source, 5-20g nitrogen source, 10-30g L-glutamine, and 0.1-20g inorganic salts, with optional addition of 0.1-20mL trace element salt solution and / or vitamin components. The pH is 6.0-7.5. The carbon source is selected from glucose, glycerol, sucrose, dextrin, or combinations thereof; the nitrogen source is selected from ammonium sulfate, yeast extract, peptone, or combinations thereof. This culture medium can significantly increase the yield of indigoidine synthesized by recombinant *E. coli* and effectively inhibit acetic acid accumulation. In a 5L fermenter, compared with LB medium, this medium can increase the indigoidine yield by at least 80% while reducing the acetic acid concentration in the fermentation broth by more than 60%, showing good prospects for industrial application.

The application discloses a die casting machine multi-process parameter cooperative control system and method, and relates to the technical field of casting equipment control. The system, when the mold is in a mold thin state, first completes mold thickness cooperative initialization, then cooperatively controls mold thickness and mold clamping force parameters based on the result to determine the minimum safe mold clamping force; when the mold is in a mold thin state, the mold thickness change rate under the minimum safe mold clamping force is monitored in real time, and progressive cooperative control of the mold thickness is performed; when the mold is in a mold thick state, the mold thickness and pressure parameters are cooperatively controlled according to the progressive cooperative control result to determine the optimal mold clamping force peak value; when the mold is in a mold thick state, fluctuation data of the casting forming process under the optimal mold clamping force peak value are collected, and the cooperative matching degree of the mold thickness and the fluctuation data is quantified, so that full-process multi-process parameter dynamic cooperation from mold closing initialization to forming process verification is realized.

The invention discloses an intelligent composite material heating system for realizing low-temperature uniform curing, which comprises a uniform planar composite material heating actuator and an industrial edge computing controller, and is characterized in that the heating actuator is a flexible whole formed by compounding multiple layers of functional materials through hot pressing and is divided into a plurality of independent circuit partitions; and a film temperature control sensor is embedded in each subarea. The controller runs a self-adaptive control algorithm, and the flow of the algorithm comprises the following steps: system self-learning and model identification; subarea adaptive control and global thermal field collaborative equalization are carried out; and environment disturbance feedforward compensation. According to the heating system, through combination of a planar uniform heat source and partition intelligent balance control, high-uniformity temperature control within + / -1.0 DEG C on a large heating area during low-temperature curing below 85 DEG C is achieved, the steady-state precision is within + / -0.3 DEG C, the anti-interference capacity is high, energy consumption is remarkably reduced, and high-quality low-temperature curing manufacturing of composite materials is powerfully supported.

The invention discloses a laser-assisted MCED electrochemical deposition method and an inclined cantilever beam preparation method, and the method comprises the steps: S1, carrying out laser-assisted experiment simulation on a glass microprobe tip in an MCED system through COMSOL software to obtain correlation characteristics of temperature field change and deposition rate of the glass microprobe tip under different laser parameters; s2, after a stable electrolyte droplet bridge is formed in the MCED system, a laser-assisted assembly is started; s3, the droplet bridge form, the deposition point form and the deposition area temperature are observed in real time based on a temperature-vision system; and S4, the MCED central controller realizes regulation and control on the shape of the liquid drop at the tip of the glass microprobe based on coordination in the step S3, the shape of the liquid drop bridge is kept consistent, and the preparation of the micro-nano structure is rapidly completed on the substrate. According to the MCED electrochemical deposition method based on laser assistance and the inclined cantilever beam preparation method, the deposition rate is increased while the process stability is guaranteed, micro-nano manufacturing is completed, and the MCED technology is promoted to be applied and developed to industrialization.

This application discloses an on-board oxygen supply device and method, and a vehicle. The on-board oxygen supply device includes an air compressor, which is suspended from the vehicle floor and used for filtering and compressing air; an oxygen chamber molecular sieve assembly, which is connected to the air compressor to receive compressed air and perform gas separation to produce oxygen; and a first oxygen delivery pipe, the inlet end of which is connected to the oxygen outlet of the oxygen chamber molecular sieve assembly, and the outlet end of which is connected to the vehicle's interior cavity. This on-board oxygen supply device suspends the air compressor from the vehicle floor, achieves air separation and oxygen production through the oxygen chamber molecular sieve assembly, and delivers the oxygen to the vehicle's interior cavity through the first oxygen delivery pipe. The structure and layout are reasonable, which can not only stably realize the oxygen production and supply function and ensure the health needs of drivers and passengers, but also effectively reduce equipment operation interference and improve driving comfort.

The invention relates to a TIG (Tungsten Inert Gas) automatic welding pulse phase control method based on time sequence molten pool recognition. A dynamic image of the molten pool is obtained through a high-speed visual sensor, and multi-dimensional feature quantization of the front edge curvature, the rear edge liquid-solid interface gradient, the center gray scale standard deviation and the like of the molten pool is achieved in combination with self-adaptive filtering and feature extraction. A lightweight CNN-LSTM hybrid network is utilized to output a normalized base metal melting index, a molten pool expansion rate and a fillable confidence coefficient in real time, and then a continuous molten pool dynamic phase angle is generated based on an arc tangent function model. After the phase angle and the current phase offset are mapped, FPGA hardware double buffering processing is carried out, microsecond pulse current phase adjustment is achieved, and the arc stability is improved through an S-shaped acceleration limiting measure. According to the scheme, the molten pool state sensing precision and the welding process control real-time performance are effectively improved, and collaborative optimization of welding stability and filling adaptability is achieved.

The invention provides a turnover mechanism and method for a substrate clamping plate in a vacuum environment, and relates to the field of semiconductor manufacturing. The mechanism comprises an overturning cavity, and an overturning frame and an overturning support assembly which are arranged in the overturning cavity, and the overturning support assembly comprises a first substrate clamping plate and a second substrate clamping plate which are oppositely arranged. The overturning driving assembly is arranged outside the cavity and drives the overturning frame to rotate through the vacuum magnetofluid sealing piece. The clamping plate opening and closing assembly comprises an elastic piece arranged on the support and an external clamping opening driving piece, and the driving piece overcomes elastic force through the corrugated pipe so as to open and close the clamping plate. The driving assembly is externally arranged, so that the problems of heat dissipation and vibration of the vacuum motor are solved, and the cost is reduced; and in combination with an elastic clamping and lifting structure, the sheet taking and placing efficiency and the overturning precision are improved.

This utility model relates to the field of waste heat recovery technology for air compressors, and discloses a waste heat recovery system for air compressors. The heat exchange medium inlet of the heat exchange tube bundle on the waste heat recovery heat exchanger is connected to the exhaust port of the air compressor body. The heat exchange tube bundle is spiral-shaped and has a horizontal U-shaped structure. The inlet and outlet of the heat medium on the waste heat recovery heat exchanger are connected to the outlet of the circulating water pump and the inlet of the heat storage tank, respectively. The waste heat recovery heat exchanger is divided into upper and lower layers by a partition component. Each of the upper and lower heat exchange chambers is equipped with baffles that match the spiral direction of the heat exchange tube bundle. The heat exchange tube bundle increases the contact area and contact time between the heat medium and the heat exchange medium, while the baffles guide the flow of the heat medium and increase the heat exchange contact time within the waste heat recovery heat exchanger. Through the orderly flow channel, baffles, and spiral tube bundle design, heat exchange efficiency is improved and the medium contact time is extended, achieving energy saving, consumption reduction, and space saving.

The invention relates to the technical field of organic chemistry, in particular to a method for purifying a melogabalin besylate key intermediate, which comprises the following steps: firstly, decolorizing for 1-3 hours in a 0.5-1 mol / L organic solution at 45-65 DEG C by using 2-10% activated carbon to effectively remove colored impurities, trace isomers and unknown byproducts and remarkably improve the initial purity and appearance of the intermediate; then, for the chiral salt intermediate, carrying out temperature-controlled pulping at 15-35 DEG C by using an organic solvent of which the volume is 10-20 times that of the chiral salt intermediate, so that residual non-salified impurities and inorganic salt are dissolved in the solvent, and the target intermediate is separated out in a uniform crystal form, thereby deeply removing the residual impurities; the two-step method is mild in condition and simple and convenient to operate, the chemical and optical purity of the intermediate is synergistically improved, and the yield, quality and process stability of melogabalin besylate in subsequent synthesis are guaranteed.

The utility model provides a powder metallurgy mould with powder anti -fly structure relates to powder metallurgy mould technical field, solved the powder metallurgy mould of commonly used in the use process, usually do not have good anti -fly structure, because material is in powder shape, when putting into the mould and processing, material can be affected and appear fly phenomenon, and then cause material waste's problem. A kind of powder metallurgy mould with powder anti -fly structure, it include: the fixed base one side is fixedly installed with connecting side seat;The connecting side seat top is slidably provided with storage tank;Through the setting of storage tank, by starting the down pressure cylinder on storage tank, its piston rod drives down pressure plate to move downward with constant pressure, and accurate pre -pressing force is applied to loose material, this step not only eliminates the gap between material, also improves filling density, effectively inhibits material fly, reduces raw material loss and maintains workshop environment clean.

The application provides a machine vision-based friction stir welding seam quality monitoring system and method, and relates to the technical field of friction stir welding. The friction stir welding seam quality monitoring system is installed in a main body of a friction stir welding device. The system comprises, which are connected in sequence, a vision module, a three-dimensional reconstruction module, a quality prediction module, a decision module and a data transmission module. The vision module, the three-dimensional reconstruction module, the quality prediction module, the decision module and the data transmission module are electrically connected. The welding seam quality monitoring method realizes three-dimensional reconstruction of the surface state of a welding seam in a welding process through the friction stir welding seam quality monitoring system, and utilizes a convolutional neural network to perform online nondestructive detection and evaluation on the surface defects, internal defects and welding quality of the friction stir welding seam, thereby filling the technical gap in online intelligent detection of internal defects of friction stir welding.