575 results about "Melt temperature" patented technology

The invention relates to the field of intelligent control, and provides an automatic control method and system of a fly ash melting processing system, which adopts an image analysis and data processing algorithm based on artificial intelligence to carry out state analysis of a molten liquid state image and time sequence association of melting temperature data in a melting furnace. Therefore, the heating power recommendation decoding value of the next time point is intelligently obtained according to the prompt enhancement joint representation between the molten liquid state characteristic and the melting temperature time sequence correlation characteristic. Thus, compared with a traditional fixed temperature set value, the system can analyze the state of the melting process in real time, dynamically and accurately adjust the heating power and ensure that the temperature is always kept within the optimal range, so that temperature fluctuation is reduced, the stability of the melting process is kept, and intelligent monitoring and control over the fly ash melting process are achieved.

A screen making machine includes a table, welder assembly, and actuation assembly. The welder assembly includes: a hot air nozzle, a pump, and a roller. The actuation system moves the welder assembly along the frame. Hot air from the nozzle elevates the temperature of the mesh and adjacent frame to an elevated temperature above a melt temperature of the surfaces of the mesh and frame. The roller presses the melted mesh surface against the melted frame surface, to melt fuse them together.

A shoe, a shoe production system and a method for producing a shoe including the steps: a. providing an upper assembly (2), wherein the upper assembly includes an upper (3) being mounted on a carrier (4), wherein the upper (3) includes a bottom section (5) being made from a thermoplastic polymer upper material; b. providing a sole molding unit (6), wherein the sole molding unit defines a cavity; c. inserting the upper assembly (2) at least partially into the cavity; introducing a midsole polymer composition comprising a molten thermoplastic polymer midsole material which has a melting temperature being equal or higher than the melting temperature of the thermoplastic polymer upper material into the cavity and foaming the molten thermoplastic polymer midsole material inside the cavity to provide a foamed midsole and to establish a material-bonded connection between the upper (3) and the foamed midsole (8).

The invention relates to a copper cable insulation layer extrusion molding method and system based on dynamic temperature control, and belongs to the technical field of copper cable production. The method comprises the steps that the surface temperature of a copper core before the copper core enters an extrusion die head and the melt temperature of a plurality of independent temperature control sections divided by the extrusion die head in the material advancing direction are obtained in real time; meanwhile, feedback adjusting quantity is calculated based on the temperature difference between the melt temperature and the preset target melt temperature, the feed-forward compensation quantity and the feedback adjusting quantity are superposed to obtain comprehensive adjusting quantity of the heating power of each section, and real-time closed-loop adjustment is conducted on the heating power of each section of the extrusion die head according to the comprehensive adjusting quantity; and the flow and the temperature of the cooling medium are adaptively adjusted according to the temperature gradient of the surface temperature along the axial direction, and non-uniform gradient cooling is carried out on the insulating layer. The copper cable insulation layer extrusion molding method and system based on dynamic temperature control at least solve the problems of poor thickness uniformity of an insulation layer, large internal residual stress and unstable adhesive force with a copper core in the prior art.

The invention belongs to the technical field of material processing, and discloses a magnesium alloy casting semi-solid injection molding method and application, and the method comprises the following steps: checking and adjusting a semi-solid injection machine, a casting mold and other equipment to be in a normal state, and placing magnesium alloy particles in a designated area of a hopper; putting a long nozzle of the semi-solid injection platform into the center of a mold sprue; setting the temperature of each section of a mold temperature controller, a charging barrel and a nozzle; preserving heat for a period of time after the temperature of the charging barrel reaches a set value, so that the temperature of materials in the charging barrel is uniform; setting the injection rate, the cooling time, the material return distance and the melt pressure of the semi-solid injection machine; and after a release agent is quantitatively sprayed to the mold, a semi-solid injection program is started, and a casting is obtained. The AS41B magnesium alloy particles with good heat resistance are adopted as the raw material, the semi-solid injection molding method is combined, a melting furnace is not needed, only heating to the semi-solid state is needed, the melt temperature is low, energy is saved, the service life of a mold is prolonged, protective gas is not needed, and the manufactured casting is good in mechanical property and high in heat resistance.

The invention relates to the technical field of terminal processing, in particular to a cold-pressed terminal processing control method and system and related equipment, and the method comprises the steps: determining the temperature fluctuation intensity of each position point at each collection moment; determining a noise elimination weight of each position point at each acquisition moment; determining the melt temperature difference of any section at each acquisition moment, and determining the temperature control response capability of the heating element in any section at each acquisition moment in combination with the change trend of the temperature fluctuation intensity of each position point at each acquisition moment and all adjacent moments thereof; and the temperature of the charging barrel of the injection molding machine is regulated and controlled by combining the significant conditions of the gray values of all the pixel points in the gray-scale map of the plastic cold-pressed terminal. By comprehensively analyzing the temperature of the plastic melt in the charging barrel, the precision of temperature control in the processing process of the plastic cold-pressed terminal is improved.

The invention discloses a method for step-by-step impurity removal in crude copper fire refining, and belongs to the technical field of metallurgical technologies. The method comprises the following steps: (1) removing As and Sb in an oxidation stage: heating and melting crude copper, blowing oxygen, and adding an impurity remover to remove As and Sb impurities in the crude copper; (2) removing Pb and Ni in an oxidation stage: after the impurity removal agent is added in the step (1) for reaction, adding a composite impurity removal agent, continuously blowing oxygen, stopping blowing oxygen until the oxygen content in the melt is 0.6-0.8% by mass, and slagging off to remove Pb and Ni impurities; and (3) deoxidation in a reduction stage: after slagging-off in the step (2), adjusting the temperature of the melt to a reduction temperature, adding high-sulfur pulverized coal in twice, and removing oxygen in the melt to complete impurity removal. According to the method, the impurity removal agent and the impurity removal process are optimized, and the impurity removal effect of the crude copper is remarkably improved through the synergistic effect.

The embodiment of the invention discloses a fly ash coal oxygen-enriched melting intelligent control method based on multi-mode coupling prediction, and belongs to the technical field of solid waste recycling and intelligent control crossing. The method comprises the steps that S101, multi-source data collected by a sensor is obtained; step S102, obtaining control parameters through an intelligent control algorithm according to the multi-source data; s103, according to the control parameters, controlling an oxygen-enriched spray gun, a slurry outlet and a material ratio; wherein the step S102 comprises the sub-steps of performing decoupling prediction on the temperature T, the hearth negative pressure P, the flue gas oxygen concentration CO and the molten slurry yield Qp by adopting a multivariable decoupling prediction model; carrying out fuzzy control on the hearth negative pressure P by adopting a fuzzy self-adaptive PID (Proportion Integration Differentiation) controller; and a multi-objective optimization algorithm is adopted to calculate and obtain control parameters. The control method is small in melting temperature fluctuation, high in hearth negative pressure stability, high in quartz sand utilization rate, low in energy consumption per ton of molten slurry and high in heat preservation cotton qualification rate.

The invention discloses a preparation method for producing an ultra-pure oxygen-free copper rod through an up-drawing continuous casting method, and belongs to the technical field of metal material machining. Comprising the following steps: selecting a cathode copper sheet as a raw material, performing oxygen-free copper rod traction in a three-body furnace consisting of a melting furnace, a transition bin and a holding furnace by adopting an up-drawing continuous casting method, adding the dried electrolytic copper sheet and charcoal into the melting furnace, and adjusting the temperature of a melt in the melting furnace; the molten copper liquid automatically flows into a transition bin to be subjected to standing and impurity removal, and charcoal and graphite flakes are laid on the surface of the copper liquid; a graphite crystallizer is inserted into molten copper, a guide rod is connected, a guide rod is prepared, the inlet and outlet water temperature of the crystallizer is adjusted, and the traction speed and pitch of a cast rod are set. According to the method, the oxygen content of the produced ultra-pure oxygen-free copper rod can be reduced to 3 ppm or below by controlling the quality of the cathode copper sheet of the copper rod, the temperature of the copper liquid, the solidification supercooling degree of the copper rod, the rod casting speed, the conditions of the crystallizer and combined control over charcoal and graphite flake reduction, and the application additional value of the oxygen-free copper rod is greatly improved.

One or more aspects of the present disclosure provide for composite elements that include a textile having a plurality of fibers, the plurality of fibers comprising a first thermoplastic material; and a second thermoplastic material surrounding the plurality of fibers of the textile and consolidating at least a portion of the textile, wherein the second thermoplastic material has a melting temperature lower than a melting temperature of the first thermoplastic material. The composite elements can be used as part of a fluid chamber or cushioning element, whereby the composite element imparts puncture resistant to the fluid chamber or cushioning element. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

The invention relates to the field of industrial data acquisition control, and provides a semi-solid magnesium alloy injection casting temperature feedback control method and equipment, and the method comprises the steps: monitoring and obtaining sensor temperature data at a plurality of moments in a semi-solid magnesium alloy injection casting process; acquiring a plurality of detection time periods and predicted temperature data thereof; analyzing the difference and variation trend between the sensor temperature data and the predicted temperature data in each detection time period, and quantifying the temperature deviation factor of each detection time period; based on the correlation of the change trend between the sensor temperature data and the predicted temperature data in each detection time period, the change of the correlation under the time sequence change of the detection time period is analyzed, and the temperature deviation accuracy of each detection time period is obtained; and correcting the sensor temperature data at each moment to obtain melt temperature data at each moment, and performing feedback control. The invention aims to solve the problem that the overall temperature feedback control effect is influenced by local temperature change in the magnesium alloy injection casting process.

A semicrystalline poly ketone powder useful for additive manufacturing may be made by dissolving a polyketone having differential scanning calorimetry (DSC) monomodal melt peak, at a temperature above 50° C. to below the melt temperature of the polyketone, precipitating the dissolved polyketone by cooling, addition of a nonsolvent or combination thereof. The method may be used to form polyketones having a DSC melt peak with an enthalpy greater than the starting polyketone.

The invention relates to the field of intelligent monitoring of glass production, and particularly discloses a glass production early warning system and method based on the Internet of Things. The method comprises the following steps: firstly, collecting melting temperatures, melting pressures and monitoring images of a plurality of preset time points in a melting forming process of a to-be-monitored glass tank as input data, and then performing deep convolutional coding and analysis on the input data by using a machine vision technology to obtain a classification result; the classification result is used for representing that the melting temperature needs to be increased or decreased and the melting pressure needs to be increased or decreased in the melting forming process of the to-be-monitored glass tank. Thus, according to the classification result, intelligent control over the fusion forming process parameters can be achieved, and therefore the production quality of the glass cans is better ensured.

The invention discloses a high-toughness PPR pipe machining device which comprises an extrusion system, a pulsation mixing system, a melt online monitoring device, a sizing cooling system, a traction device and a winding device. The extrusion system is used for melting and conveying raw materials, and the pulsation mixing system is used for deeply mixing a melt by utilizing a periodic disturbance structure, so that a toughening agent and a copolymerization component are more uniformly dispersed in the melt. The melt on-line monitoring device can detect the temperature, pressure and dispersity of the melt in real time, so that the extrusion process is monitorable. The sizing cooling system adopts a subsection cooling mode of rapid cooling, constant-temperature slow release and low-temperature shaping, and stable shape control is achieved through vacuum sizing. The traction device and the winding device are used for keeping the production rhythm stable and achieving continuous winding of the formed pipe. According to the invention, the melt mixing quality can be improved, the cooling internal stress is reduced, and the toughness and dimensional stability of the PPR pipe are improved.

The invention discloses an insert for accurately measuring the temperature of multiple positions in an extrusion casting mold and a temperature measuring method, the insert for accurately measuring the temperature of the multiple positions in the extrusion casting mold comprises a temperature measuring main body mounted in the mold, and one surface, in contact with a casting, of the temperature measuring main body is a temperature measuring surface; a plurality of groups of temperature measuring holes are formed in the temperature measuring main body, each group of temperature measuring holes comprises a through hole and a blind hole which extend to the temperature measuring surface, and thermocouples are arranged in the through holes and the blind holes. According to the invention, the multiple groups of temperature measuring holes comprising the through holes and the blind holes are formed in the temperature measuring main body, so that the purpose of simultaneously measuring the melt temperature and the mold temperature at different positions in the casting process is achieved, and dual temperature monitoring is provided for the casting process.

The invention discloses a fly ash processing production line intelligent control system and method based on big data analysis, and relates to the technical field of intelligent control, and the method comprises the following steps: obtaining a molten liquid state image and melting temperature data; state feature extraction is carried out on the obtained molten liquid state image, and time sequence feature extraction is carried out on the melting temperature data; performing fusion coding to obtain cross-modal guide joint coding features between the molten liquid state and the melting temperature, and training a control model through reinforcement learning; monitoring a molten liquid state image and melting temperature data in real time, and obtaining a control instruction based on the control model; and carrying out data feedback, carrying out comparative analysis on the data and an expected control target, and optimizing cross-modal guide joint coding characteristics between the molten liquid state and the melting temperature. According to the method, the state image and the temperature data of the molten liquid are collected in real time, multi-dimensional feature extraction and fusion coding are carried out, a control system is trained, and accurate prediction and adjustment of the heating power are achieved.

A process and an apparatus for silicon carbide production includes steps of producing a mixture having at least a carbon powder and a silica powder where the percentage by weight of carbon powder with respect to the total weight of the mixture, is at least about 25%; placing the mixture in a crucible; creating a substantially inert atmosphere in an area at least partially surrounding the crucible; heating up the crucible by a heating device for a first time interval until reaching a working temperature of at least 1.500° C. and lower than a melting temperature of the silica powder in the mixture; maintaining the crucible within a working temperature range between 1.500° C. and the melting temperature of the silica powder in the mixture for a second time interval; and reducing the temperature of the crucible after the second time interval.

The invention discloses a method for optimizing technological parameters in a melt conveying process, which relates to the technical field of melt conveying optimization and comprises the following steps of: setting a melt suitable temperature range and a melt temperature threshold range according to basic properties of a melt; the melt inlet and outlet temperature flow and the heating medium inlet and outlet temperature flow of the heat exchanger are monitored and collected, and melt temperature flow data and heating medium temperature flow data are obtained; performing data processing on the melt temperature flow data to obtain melt temperature change information; based on the melt temperature change information and the melt temperature threshold value, the heating medium flow and the heating medium temperature are controlled, and the operation state of the heat exchanger is monitored; the method is used for solving the problems that in an existing melt conveying optimization technology, a method for directly controlling the temperature of a melt heat exchanger cannot well meet the temperature requirement of melt conveying in the aspect of precision, and the operation state of the heat exchanger cannot be monitored in time while temperature control is conducted.

The present application discloses water-dispersible sulfopolyester compositions having glass transition temperatures (Tg) or melting temperatures (Tm) around 50°C. The sulfopolyesters possess optimal water dispersibility and film forming behavior, and are readily freshwater biodegradable. The sulfopolyesters can also have UV light absorbing ability in the UVA and UVB spectrum based on their chemical compositions. The disclosed compositions are useful for hair care applications.

A phase change material composition for latent heat storage is provided. The composition includes a eutectic mixture of two or more salt hydrates, and at least one salt additive each selected from a bromide salt and a bromide salt hydrate. The mixture of salt hydrates has a melting temperature above room temperature. The at least one salt additive decreases the melting temperature of the mixture and reduces a degree of supercooling of the mixture. The mixture of salt hydrates may be a mixture of calcium chloride hexahydrate and magnesium chloride hexahydrate. The salt additives may include both calcium bromide and magnesium bromide. The melting temperature of the phase change material composition may be in a range of approximately 15 to 25° C. A thermal energy storage system including the phase change material composition and a method of heat management in the thermal energy storage system are also provided.

The invention relates to the technical field of converter safety monitoring, in particular to a method for predicting the thickness of refractory bricks based on converter wall temperature. The temperature distribution and the residual thickness of the refractory bricks are estimated according to the external furnace body temperature and the melt smelting temperature, and then the overhaul of the converter is judged according to the temperature distribution and the residual thickness of the refractory bricks, so that the real-time safety monitoring in the operation process of the converter is realized. The problem of how to monitor the operation risk of the converter is solved.

The invention relates to the technical field of turbine blade manufacturing, and particularly discloses turbine blade surface layer slurry with low natural vibration frequency dispersity and a production process, the geometrical shape and size of a turbine blade are determined through a modeling technology so as to reduce the natural vibration frequency dispersity, single-factor experiment and multi-factor experiment design are carried out on the surface layer slurry, and the surface layer slurry with the low natural vibration frequency dispersity is obtained. The optimal viscosity, silicon content, pH value and cobalt aluminate powder adding amount are determined, and the performance requirements of the shell, such as wet strength, dry strength and collapsibility, are ensured. In the alloy smelting process, by accurately controlling the power and time of induction heating, precise control over the alloy melt temperature is achieved, grains are refined, the performance consistency of turbine blades is improved, by comprehensively analyzing surface layer slurry parameters and power adjustment in alloy smelting, the performance of the turbine blades is evaluated, the low natural vibration frequency dispersity is ensured, and the performance consistency of the turbine blades is improved. And the overall performance and reliability of the turbine blade are improved.

A screen making machine includes a table, welder assembly, and actuation assembly. The welder assembly includes: first and second nozzles, a pump that pumps air through each nozzle, and a roller. The first nozzle, second nozzle, and roller are positioned in line and spaced apart. The actuation system moves the welder assembly along each side of the frame. Hot air from the first nozzle elevates a temperature of the mesh and adjacent frame to a first elevated temperature, and subsequent flow of hot air from the second nozzle elevates them to a second elevated temperature, being above a melt temperature of the surfaces of the mesh and frame. The roller presses the melted mesh surface against the melted frame surface, to melt fuse them together. A top surface of the table is heated to thereby heat a second side of the frame, facilitating better welds.

Embodiments can relate to an improved hydroflux, additive or electroless plating assisted densification cold sintering process to densify powdered metals at lower compaction pressures and lower temperatures (e.g., 520 MPa and 140° C.). The process can involve inducing dissolution precipitation mechanisms at powder interfaces by introducing a transport phase (formed by the introduction of water during the process to suppress melting temperatures) that is not an aqueous solution. Particle interfaces in the cold sinter fuse together by the presence of the additional transport phase, thereby reducing the temperatures and pressures needed for compaction. Some embodiments involve the use of elements to form a eutectic at the desired low temperature, thereby stabilizing certain crystal structure shapes of isometric crystal systems, inducing rapid densification, and facilitating pore smoothing. Embodiments of the process can be used to generate a green compact via sintering that exhibits improved green strength.

The invention relates to the technical field of high-temperature melt temperature monitoring, and discloses a top-blown furnace high-temperature melt temperature and splashing online monitoring system and method, and the system comprises a top-blown furnace data acquisition module, a furnace body splashing data calculation module and a smelting process control module. The method comprises the following steps: transmitting detected data to a data calculation module in real time; performing interface reconstruction on the real-time data to obtain the specific condition that the melt is splashed to the wall surface, and realizing visualization of impact of the melt on the furnace body according to the specific condition that the melt is splashed to the wall surface; the visual data is transmitted to the smelting process control module; and on the basis of the molten pool temperature distribution and the melt splashing condition, the flow of pulverized coal, dry powder and gas is adjusted, a melt temperature liquid level model is constructed, the molten pool temperature and the melt splashing condition are evaluated, and the smelting process is controlled according to the evaluation result. According to the method, the smelting quality problem caused by melt splashing and uneven temperature can be reduced.

The invention relates to an unmanned aerial vehicle paddle structure and a manufacturing method thereof.A paddle root, a paddle upper skin and a paddle lower skin of the unmanned aerial vehicle paddle structure are all made of the same first fiber reinforced thermoplastic composite material, and a paddle supporting piece is made of a second fiber reinforced thermoplastic composite material; the melting temperature of the second fiber-reinforced thermoplastic composite material is higher than that of the first fiber-reinforced thermoplastic composite material, and when the paddle supporting piece is subjected to injection molding, fusion at the interface of the two materials is promoted through the difference of the melting temperatures of the two resins, so that rapid integrated molding of the unmanned aerial vehicle paddle structure is realized; and the manufacturing cost is reduced while the structural strength of the paddle is improved.

The invention discloses a modified plastic processing temperature adaptive control method, and relates to the technical field of high polymer material processing control, and the method comprises the following steps: collecting the same frequency mapping of power grid disturbance and melt temperature response, capturing the transient power fluctuation of a heating unit with millisecond-level time precision by adopting a phase comb sampling technology, and constructing a power pulse fingerprint database; a parameter space for discriminating a pseudo-steady state is established based on a power pulse fingerprint database, a short-time power pulse signal and a stable signal are classified by using a phase lag and entropy increase dual-threshold method, and a pseudo-steady state confidence index is generated. According to the method, the power pulsation fingerprint database and the electrothermal coupling model are constructed, pseudo-steady-state temperature control abnormity is accurately recognized, reverse energy regulation and control are achieved in combination with a sensitivity track and a thermal write-back mechanism, the melt temperature stability is improved, the product warping rate is effectively reduced, and the size consistency and the mechanical property are remarkably optimized.

The invention relates to a processing method of a battery aluminum foil blank, which comprises the following steps: casting and rolling a melt to obtain a cast and rolled coil, and controlling casting and rolling parameters during casting and rolling, the casting and rolling parameters comprising the melt temperature in a front box, the temperature and pressure of cooling water, the rolling force, the rolling speed and the coiling tension, so that the middle convexity of the obtained cast and rolled coil is 0.1-1.0%, and the thickness difference of two side parts is less than 0.05 mm; cold rolling is conducted on the cast-rolled coil to obtain a battery aluminum foil blank finished product, cold rolling comprises rolling from the first pass to the fifth pass, and during rolling, rolling parameters of all rolling passes in cold rolling are controlled, so that the thickness difference fluctuation of the obtained battery aluminum foil blank finished product is smaller than 0.8%; the rolling parameters comprise the machining rate, the rolling speed, the inlet tension, the outlet tension and the plate shape curve, so that the thickness precision of the battery aluminum foil blank is improved, the plate shape flatness of the battery aluminum foil blank is guaranteed, and the final plate shape flatness and the thickness precision of the battery aluminum foil are improved.

The invention belongs to the technical field of metal ropes, and provides a high-oil-content coated metal rope and a preparation method and application thereof.The coated metal rope comprises a metal rope body and a plastic outer layer coated on the outer surface of the metal rope body, and the metal rope body comprises a core wire containing first lubricating oil and a side wire containing second lubricating oil; the side wire is wound on the outer surface of the core wire, and the flash point of the first lubricating oil is 20-30 DEG C higher than the melting temperature of the plastic outer layer; the flash point of the second lubricating oil is 50 DEG C higher than the melting temperature of the plastic outer layer. According to the method, in the plastic outer layer coating process, the oil volatilization amount can be greatly reduced, plastic outer layer swelling, bubble existence and coating failure are avoided, the prepared high-oil-content coated metal rope is good in self-lubricating performance, internal friction and breakage of the metal rope can be greatly reduced, and the high-oil-content coated metal rope can be applied to a driving mechanism of a vehicle side sliding door.

The invention relates to the technical field of PE lamination production control, and discloses a distributed control system for a high-speed PE lamination production line. A base material state monitoring module of the system collects surface tension parameters and thickness distribution data of a base material in real time, and a dynamic base material state matrix is generated in combination with the operation speed of the base material; the temperature field coordination module is used for matching a preset melt temperature gradient curve according to thickness distribution data in the dynamic base material state matrix and generating a partition temperature regulation and control instruction set; the extrusion pressure balance module analyzes the pressure fluctuation historical record of each extrusion section based on the partition temperature regulation and control instruction set, calculates the pressure compensation amount of adjacent sections and generates a pressure balance parameter table; the film layer fusion control module receives the compensation amount data, adjusts the rotating speed difference of the double-screw extruder and the opening degree parameter of a die head in combination with the real-time melt casting speed, and outputs a film layer fusion quality index; and the distributed execution module decomposes the film fusion quality index into independent control instructions and synchronously issues the independent control instructions to each execution unit.