1130 results about "Electric spark" patented technology

The invention discloses a dust treatment device for emery production, and relates to the technical field of emery production, the dust treatment device comprises a dust absorption mechanism and a dust absorption pipe mounted on one side of the dust absorption mechanism, a dust treatment mechanism is arranged on one side of the dust absorption mechanism, and a filter box is arranged on one side of the dust treatment mechanism; the dust absorbing mechanism comprises a dust absorbing sleeve, a first rotating shaft is arranged in the center of the interior of the dust absorbing sleeve, a dispersing rotating disc is fixedly installed on one side of the first rotating shaft and rotationally connected with the dust absorbing sleeve, and a plurality of dispersing spiral plates are fixedly installed on the outer side of the first rotating shaft; due to the fact that a certain amount of water is contained in the anti-static spray, the preliminary dust falling effect can be achieved, meanwhile, the anti-static effect can be achieved, and the phenomenon that due to the fact that the concentration of sucked dust is too high, dust suction pipes are mostly made of metal materials, certain electrostatic sparks are generated and make contact with aluminum oxide dust, and then explosion is generated is avoided.

The invention provides a double-curved-surface hole wall rotational flow umbrella oil nozzle for low-carbon fuel and a machining method, and relates to the technical field of gas turbine fuel injection. The nozzle comprises a needle valve, a needle valve seat, a spraying hole and a rotational flow groove; the needle valve and the needle valve seat form a sealing conical surface, the inner wall face of a spraying hole of the curved-surface rotational flow umbrella spraying nozzle is a double curved surface, the double curved surface and the sealing conical surface form a ruled surface, the rotational flow groove is formed in the inner wall face of the spraying hole, and the direction of the rotational flow groove is the generatrix of the ruled surface. The inner wall face of the spraying hole is designed to be the curved face, fuel is better guided to flow in the oil nozzle, the area of a low-pressure area is reduced due to sudden change of the direction in the fuel flowing process, and therefore cavitation is restrained from occurring and developing, and the phenomena that the spraying hole is blocked and mist spraying is unstable due to cavitation are improved; the rotational flow grooves in the curved surface can be achieved through the electric spark machining technology, the machining difficulty is reduced, meanwhile, the turbulent kinetic energy and the radial momentum of fuel can be effectively improved, spray distribution is more uniform, and the atomization quality is improved.

The invention relates to the technical field of data signal processing, in particular to a distribution box electric spark monitoring method which has the advantages of not depending on optical imaging conditions, adapting to complex environments and being capable of effectively distinguishing difference between mechanical vibration and discharge signals. According to the invention, non-intrusive monitoring of electric sparks in the distribution box can be realized, and the limitation of a traditional visual method in a closed space is overcome. And the fusion of the multi-dimensional acoustic features improves the recognition accuracy and reduces the false alarm rate. The introduction of environmental parameters enables the system to adapt to different working conditions, and improves the robustness of monitoring. The method does not need to reform the structure of the distribution box, can be widely applied to state monitoring of various low-voltage distribution equipment, and effectively prevents equipment faults and safety accidents caused by electric sparks.

The invention discloses a data processing method and system for a precise automatic multi-axis numerical control electric spark forming machine, and the method comprises the steps: mapping preprocessed data into a digital twin model for fusion analysis, and extracting fusion features including instantaneous energy density, an effective machining angle, a thermal error compensation amount and a chip removal efficiency evaluation value; based on the fused feature data, performing real-time state evaluation and future discharge trend prediction by using a LightGBM neural network model, and outputting a processing prediction result; and a multi-target optimization function is established, an improved NSGA-II algorithm is utilized to carry out rapid optimization search by taking the current processing parameters as an initial population, a multi-axis cooperative motion instruction is generated, and the multi-axis cooperative motion instruction is transmitted to a multi-axis motion control module and a pulse power supply module to be executed. And the processing stability and reliability are improved.

The invention discloses a high-strength composite pipe manufacturing method, and relates to the technical field of composite pipe production, and the method comprises the following steps: S1, inner ring welding: arranging and guiding inner ring reinforcing warps through a front end winding welding seat, and welding inner ring spiral wefts to the outer sides of the inner ring reinforcing warps through electric sparks, s2, mesh belt winding: wrapping a middle-layer steel wire mesh belt on the outer side of an inner-ring spiral weft through a middle-layer mesh belt winding welding seat, welding the middle-layer steel wire mesh belt on the outer side of the inner-ring spiral weft through electric sparks, and winding the middle-layer steel wire mesh belt on the outer side of the inner-ring spiral weft through a middle-layer steel wire mesh belt winding welding seat; the operation stability of production equipment is improved, the convenience of replacement and adjustment of the mesh belt storage roller is effectively improved, a mesh framework is formed by continuous online welding of warp-direction steel wires and inner and outer weft-direction steel wires, and the mesh framework and steel-plastic formed by one-time co-extrusion composite molding of polyethylene plastic penetrate through each other in a three-dimensional mode and are embedded with each other to jointly bear the working load.

Fixing seats are symmetrically arranged at the outer ends of the two sides of an oil storage cooling and heat dissipation mechanism, three rams are arranged on the upper surfaces of the two fixing seats through linear guide rails, and the ends, close to the oil storage cooling and heat dissipation mechanism, of the rams are provided with ox heads; the oil storage cooling and heat dissipation mechanism comprises an oil groove, partition plates and baffles, a workbench is arranged in the oil groove, cavities are formed in the side walls of the two sides of the oil groove, the inner wall of the oil groove is open, the partition plates and the baffles are installed on the inner wall of the oil groove, and heat dissipation holes are densely distributed in the upper portion of the oil groove. The tool is reasonable in structure, cooling oil returns to the oil storage tank through the oil return tooth grooves and the oil return openings in the lower portions of the oil grooves, heat generated when six ox heads are machined at the same time enters the cavities in the two sides of the oil grooves through the heat dissipation holes and is exhausted through the exhaust connectors, the heat generated when the ox heads are machined in the oil grooves is greatly reduced, and machining efficiency is improved. Therefore, the safety and the service life of the cow head are ensured.

The invention belongs to the technical field of special maintenance of reactor bodies, and particularly relates to an electric spark machining head for cutting a sleeve flange in a narrow space. Comprising an expansion mechanism, a fine adjustment jacking mechanism, a rotating mechanism, an electrode and a radial servo feeding mechanism, the rotating mechanism provides rotary motion of the electrode and drives the electrode to conduct rotary machining, the radial servo feeding mechanism provides radial feeding motion of the electrode, and the expansion mechanism plays a role in fixing and positioning. The fine adjustment jacking mechanism drives the rotating mechanism, and the radial servo feeding mechanism drives the electrode to do up-down, rotating and radial feeding movement. The method has the beneficial effects that the damage to the pressure-bearing boundary of the primary loop of the nuclear power unit can be avoided under the condition that the heat sleeve is worn out of limits and needs to be replaced aiming at the common problem of wear settlement of the heat sleeve of the control rod driving mechanism of the nuclear power unit, and the whole dismantling work has relatively high safety, reliability and economical efficiency; and greater benefits can be created for the operation of a power plant.

The invention discloses an electric spark nondestructive testing evaluation method for the integrity of a waterproof layer of a cable trench, and belongs to the technical field of nondestructive testing, and the method comprises the following steps: applying a multi-frequency electric signal through a preset moving electrode; the initial contact pressure of the moving electrode and the surface of the waterproof layer is obtained in real time, the pressure of the contact position of the moving electrode is adjusted, an electric spark signal generated at the defect position of the cable trench waterproof layer by a multi-frequency electric signal applied by the moving electrode is captured, and characteristic parameters of the electric spark signal are extracted to generate current electric spark characteristic data; utilizing the current electric spark characteristic data to distinguish defect types so as to generate a defect evaluation result; and outputting defect distribution information and triggering an acousto-optic alarm according to a defect evaluation result. According to the method, a detection mode of combining multi-frequency electric signal excitation and electric spark signal feature extraction and analysis is adopted, waterproof layer defect types can be distinguished, the severity of the waterproof layer defects can be evaluated, and the detection accuracy is improved.

A method for preparing a profiled microchannel plate heat exchanger, and belongs to the technical field of heat exchange. The method based on a combination of a plurality of methods formed by selective laser melting and micro electrical discharge machining can realize a profiled microchannel plate heat exchanger having large aspect ratio flow channels and closed profile section flow channels.

The invention discloses a household energy storage battery management system, and belongs to the technical field of energy storage batteries, the household energy storage battery management system comprises an energy storage box buried in an underground area, an energy storage end cover and a battery pack assembled with the energy storage box, the bottom of the energy storage box is provided with a ground temperature heat exchange unit, one side of the energy storage box body is provided with a discarding port penetrating through the side wall, and the energy storage end cover is arranged in the energy storage box body. A high-risk battery protection box is arranged on the side wall, located on one side of the discarding opening, of the energy storage box body, a pressure storage mounting base is arranged on one side of the energy storage box body, and the pressure storage mounting base is connected with a force storage push plate through a force storage device. The power storage device is triggered through fusing of a thermosensitive wire, a high-temperature abnormal battery pack can be instantly pushed into the independent high-risk battery protection box, chain reaction is avoided, the fire risk is reduced, the high-risk battery protection box is provided with an electromagnetic control fire extinguishing sand putting system, battery combustion can be rapidly inhibited, secondary damage is reduced, and the safety of the battery is improved. And the magnetic type wiring device is automatically powered off when an abnormal battery is discarded, so that the risk of electric sparks or short circuits is avoided.

The invention discloses a test system and method based on electric spark simulation acoustic detonation waves, and belongs to the technical field of acoustic detonation wave ground simulation tests. The problem that in the prior art, an acoustic explosion model does not simulate the atmospheric turbulence environment is solved. The turbulence generation system is adjusted to add a disturbance source for a flow field to generate plane jet flow, the hot line measurement system is used for measuring turbulence intensity, the electric spark acoustic explosion source system is used for generating N-type wave signals used for representing typical acoustic explosion characteristics, and the acoustic explosion wave measurement system is used for measuring acoustic explosion wave signals and storing measurement data. According to the ground test simulation system and method, the N-type wave of the far-field acoustic detonation, the atmospheric turbulence and the influence between the N-type wave and the atmospheric turbulence can be completed on the ground, the influence of the atmospheric turbulence on the acoustic detonation can be considered, a ground simulation platform is provided for research on the interaction between the acoustic detonation wave and the atmospheric turbulence, and the prediction precision of the far-field acoustic detonation is improved.

The application discloses a kind of electric spark wire collecting and releasing device and method of convenient automatic wire feeding, belong to spark wire cutting processing technical field, including rack;The top of rack is connected with the adjusting type take-up and pay-off assembly for take-up and pay-off;Adjusting type take-up and pay-off assembly includes take-up and pay-off assembly, adjusting type linkage assembly and translation component, translation component is fixedly connected with rack, adjusting type linkage assembly is connected with take-up and pay-off assembly, adjusting type linkage assembly is fixedly connected with translation component;The end of the winding end of take-up and pay-off assembly is fixedly connected with the elastic compression assembly for cutting wire end fixedly connected;The side of rack close to cutting machine tool is connected with the wire feeding assembly for cutting wire to be sent to elastic compression assembly, and wire feeding assembly is movably connected with elastic compression assembly.The application realizes automatic wire feeding, and it is beneficial to practical use.

The utility model relates to the technical field of electric spark sources, in particular to a portable electric spark source which comprises an input power supply, a central control box, an upper computer and an exciter, and a source system is arranged in the central control box; the seismic source system comprises a voltage detection module, a high-voltage power supply module, an energy storage module and a high-voltage switch module. The input power supply is electrically connected with the high-voltage power supply module, the voltage detection module and the high-voltage switch module respectively; the high-voltage power supply module is electrically connected with the voltage detection module, the upper computer, the energy storage module and the high-voltage switch module, and the high-voltage switch module is electrically connected with the energy storage module and the exciter. According to the portable electric spark source, the high-voltage power supply and the high-voltage switch are integrated, so that the size and the weight of equipment are remarkably reduced, and the portability is improved.

A system for measuring the surface roughness of surfaces machined by electrical discharge machining (EDM) using a convolutional neural network, comprising: an image recording device with a camera module for recording images of a machined surface with depressions and burrs produced by electrical discharge machining; an image preprocessing module that is connected to the image capture device and is configured to improve the texture contours of the captured images and optimize the image; a Convolutional Neural Network module configured to receive images captured by the image preprocessing module, wherein the Convolutional Neural Network module comprises the following: a feature extraction submodule with multiple convolution and pooling layers, wherein this submodule is configured to analyze the distribution of light intensity variations in the acquired images, where darker areas correspond to valleys and lighter areas to edges of the processed surface, and extracts features from this; and a classification submodule with fully connected layers and an output layer, wherein the classification submodule is configured to predict an arithmetic mean roughness value (Ra) based on the extracted features; a computer device comprising a processor, a working memory and a storage unit, wherein the computer device is configured to execute the convolutional neural network module using the processor, the execution parameters being loaded from memory into the working memory; and an output module integrated into the computer device, wherein the processor is configured to create a database of samples with recorded surface roughness values ​​within the storage unit, the database containing the preprocessed image with timestamp and image metadata as well as the results obtained from the prediction, and wherein the processor is further configured to deliver the predicted arithmetic mean roughness value (Ra) from the output layer to a user interface.

The invention provides an under-water discharge machining system and method for a radiation environment. The under-water discharge machining system comprises a pulse power supply control system, an electric spark machining head device and a servo control system. The pulse power supply control system comprises a power supply control box, a rectifier and a power amplifier which are electrically connected in sequence. And the power amplifier is electrically connected with the servo control system and the electric spark machining head device. The electric spark machining head device is provided with a feedback signal wiring connected to the servo control system. The pulse power supply control system is matched with the servo control system to drive the electric discharge machining head device to guarantee the process of the workpiece to be machined, so that the problem that conventional electric discharge machining equipment cannot be used in the high-radiation and boron-containing water environment is solved.

The invention relates to the technical field of power equipment, in particular to a combined power distribution method and system, which comprises a power distribution cabinet body and a power access device, a supporting bottom column is fixedly mounted at the bottom of the power distribution cabinet body, a mounting plate is fixedly connected to the upper end of the supporting bottom column, and a plurality of distributors are mounted on the upper end surface of the mounting plate; the power distributor and the power supply access device are connected through the electric spark shielding assembly, the fire extinguishing assembly is installed at the corner of the upper end of the inner wall of the power distribution cabinet body, a wire protection structure is arranged in a traditional power distribution cabinet, the installed wires can be protected, arrangement of the wires is facilitated, and meanwhile the insulation structure is arranged at the upper end of the power distributor. In addition, the fire extinguishing structure is arranged in the power distribution cabinet, and when a fire breaks out, the fire extinguishing structure in the power distribution cabinet can extinguish fire rapidly, so that electrical equipment in the power distribution cabinet is protected to the maximum extent, and loss is reduced to the minimum.

The invention discloses a real-time energy consumption monitoring and management system for an electric spark machine, and relates to the technical field of industrial automation, the real-time energy consumption monitoring and management system comprises an acquisition module, an analysis module, a control module and a management module, the acquisition module is used for acquiring energy consumption data and processing working condition parameters of electric spark processing equipment and transmitting the energy consumption data and the processing working condition parameters to the analysis module; the data processing module is used for performing energy consumption trend analysis, correlation analysis and energy consumption data abnormity judgment, outputting an analysis result, transmitting the analysis result to the control module, generating an optimization strategy according to the analysis result, outputting a control instruction, and transmitting an execution result of the optimization strategy and a sending record of the control instruction to the management module; real-time monitoring data, an analysis result, an optimization strategy, an optimization strategy execution result and a control instruction sending record of energy consumption data are displayed in real time, single collection is broken through by integrating multi-dimensional information, an abnormal inflection point is dynamically pre-judged, parameter response is quantified, a differential strategy is formed, visual closed-loop management is achieved, and high precision and low energy consumption of electric spark machining are achieved.

The application provides a novel high-temperature-resistant small-hole tilting-pad bearing which is mainly composed of a bearing shell and a metal wire mesh structure, adopts a tilting-pad structure with S spring flexibility, is provided with micro grooves on each pad, and is provided with small holes on the micro grooves as working surfaces for supplying gas to form a gas film. The left and right two parts of the bearing shell are integrally machined by using electric spark technology and are connected and fixed by using cylindrical pins. Since the throttler, the flow channel and the shell are integrally machined, the bearing has the characteristics of high-temperature resistance. The metal wire mesh structure is embedded in the gap between the bearing body and the pad, the metal wire mesh structure provides flexible support for the pad, and can keep the performance stable at high and low temperatures. Therefore, the bearing structure provided by the application can provide higher damping characteristics for the bearing and has the characteristics of high-temperature resistance.

A flexible electrode (2) in-line deformation electrical discharge cutting method. During machining of complex surfaces, such as blisks, a flexible electrode (2) is used as a tool electrode for electrical discharge machining, the surface of the flexible electrode (2) is used as a machining surface for performing cutting-type electrical discharge machining along a preset path, and, according to the curvature characteristics of the machined surfaces, the flexible electrode (2) undergoes in-line deformation, thereby completing the machining of complex surfaces. The flexible electrode (2) is made of a material having good electrical conductivity and elasticity, so as to ensure that the flexible electrode (2) can recover after deformation. Using the flexible electrode (2) for realizing electrical discharge cutting machining for three-dimensional complex surfaces can simplify a design process for the tool electrode and improve the electrical discharge machining efficiency.

The invention relates to the technical field of motor explosion prevention, in particular to a bionic robot dog joint motor explosion-proof mechanism which comprises a left front root explosion-proof motor assembly, the corner of a bionic robot dog body is fixedly connected with the left front root explosion-proof motor assembly, the end of the left front root explosion-proof motor assembly is fixedly connected with a left front middle explosion-proof motor assembly, and the end of the left front middle explosion-proof motor assembly is fixedly connected with a right front middle explosion-proof motor assembly. One end of the left front middle explosion-proof motor assembly is fixedly connected to the bionic robot dog body, the other end of the left front middle explosion-proof motor assembly is provided with the left front large explosion-proof motor assembly in a matched mode, multiple independent explosion-proof spaces are constructed, electric sparks and high temperature generated during motor operation are effectively isolated, the motors are prevented from making contact with the external explosive environment, and therefore explosion accidents are avoided; and the connecting parts of the explosion-proof assemblies are sealed by using the sealing rings, so that the sealing effect can be ensured, explosive gas or dust is prevented from entering the explosion-proof space, the explosion-proof performance is further enhanced, and the problem that a traditional bionic robot dog cannot operate in the environment with flammable and explosive gas and much dust due to the lack of the explosion-proof performance is solved.

The invention discloses a special-shaped hole machining system and a special-shaped hole machining method. The machining method of the special-shaped hole comprises the steps that quasi-continuous laser is adopted for machining in a machining target to form a prefabricated hole; carrying out scanning processing on the prefabricated hole by adopting ultrafast laser according to a layer-by-layer scanning removal mode so as to process the prefabricated hole into a special-shaped hole; and the straight round section of the special-shaped hole is subjected to fine trimming treatment in any one of ultrasonic-assisted mechanical tool cutting machining or ultrasonic-assisted electric spark machining and electro-hydraulic beam machining, so that the taper is eliminated. According to the special-shaped hole machining system and the special-shaped hole machining method provided by the embodiment of the invention, machining of complex special-shaped holes can be achieved, and meanwhile the problems of conicity and wall damage are avoided.

The invention discloses a blind groove electric spark trepanning and reciprocating vibration multi-channel discharging combined machining method, and belongs to the technical field of discharging machining. According to the method, firstly, a thin-wall electrode is adopted for conducting electric spark nesting machining on the outline of the large-depth blind groove, and a blank of the blind groove is efficiently drawn; and then reciprocating vibration multi-channel electric discharge machining is adopted to conduct efficient corrosion removal on the material core obtained after previous trepanning machining, and the corrosion removal efficiency and the surface quality are greatly improved through the synergistic effect of high-frequency reciprocating vibration of an electrode and multi-channel electric discharge. The interpolar chip removal, cooling and deionization characteristics in the machining process are improved, and the machining stability is maintained. Energy is dispersed to multiple channels through multi-channel discharge, the energy density of a single channel is reduced, electrode loss is reduced, and the surface quality is improved. The method is suitable for machining large-depth blind grooves with various end face sizes, the machining time is remarkably shortened, and the cost is reduced.

The invention discloses an electric spark source multi-wave micro-logging system and method, and relates to the technical field of seismic exploration, in particular to an electric spark source multi-wave micro-logging system which comprises a cable, a transverse wave converter, a seismic recorder, an electric spark source, a first three-component detector, a second three-component detector and a longitudinal and transverse wave data processing system. An electric spark electrode column is longitudinally arranged in an inner cavity of the transverse wave converter; after being started, the electric spark source discharges through an electric spark electrode column, water molecules at the position where the electric spark electrode column is located are electrolyzed to generate gas through discharging of the electric spark electrode column, the gas impacts a stratum to generate seismic waves, and a first three-component detector and a second three-component detector receive and record seismic wave signals and transmit the seismic wave signals to a longitudinal and transverse wave data processing system; the depth of the transverse wave converter and the depth of the electric spark electrode column are increased by pulling the mooring rope, so that the electric spark electrode column can excite a seismic source at a plurality of observation points, and the purpose of exciting the seismic source for multiple times is achieved.

The invention discloses an electrode capable of machining two square holes at the same time and a using and manufacturing method of the electrode, and relates to the technical field of electric spark punching. The electrode comprises an electrode clamping part, the two ends of the short edge of one side of the electrode clamping part are connected with electrode working parts with square sections, and each electrode working part comprises a working section a, a working section b, a working section c and a working section d which are sequentially connected in the direction from the free end to the connecting end of the electrode working part. When the electrode is used, rough machining, semi-finish machining, finish machining and ultra-finish machining can be synchronously carried out on the two square holes through the working sections on the two electrode working parts. According to the electrode capable of machining the two square holes at the same time and the using and manufacturing method of the electrode, simultaneous machining of the two square holes of a high-precision valve part can be completed, and electrode loss is reduced while the requirement that the inner angle of the square holes is not larger than R0.05 mm is met.

The utility model discloses a Teflon pipe rapid electric spark detection device, and relates to the Teflon pipe technology field, the Teflon pipe rapid electric spark detection device comprises a base plate, protection shells, and feeding ports, the protection shells are fixedly connected to the top of the base plate, and the feeding ports are arranged on two sides of the two protection shells; the teflon pipe rapid electric spark detection device comprises a bottom plate, the middle of the top of the bottom plate is provided with a detection structure, the detection structure is provided with a fixing ring, the fixing ring is fixedly connected to the top of the bottom plate, and one end of the fixing ring is hinged to a rotating ring. The electric spark detection equipment can generate electromagnetic radiation during high-voltage working, electromagnetic shielding can protect operators from being damaged by the electromagnetic radiation, meanwhile, external electromagnetic interference is prevented from damaging electronic elements of the equipment, electromagnetic interference sources in an industrial field environment are more, the electromagnetic shielding provides a relatively clean electromagnetic environment, and the electromagnetic shielding can be used for protecting the operators from being damaged by the electromagnetic radiation. And stable operation of equipment is ensured.

The invention relates to the technical field of industrial intelligent control, in particular to an electric discharge machine intelligent scheduling and production regulation and control system which comprises a staggered analysis module, a station mapping module, a task distribution module, a trend prediction module and an instruction regulation and control module. According to the method, the processing task parameters and the station bearing parameters of different dimensions are standardized and uniformly mapped, and then the spatial distance is calculated to accurately quantify the matching degree between the tasks and the stations, so that the limitation of static distribution can be eliminated, and redundant production resources are identified and eliminated by analyzing the change of the matching degree; according to the energy demand and time urgency dynamic remapping of a task, simplification and efficiency improvement of production configuration are achieved, meanwhile, the future abrasion risk can be foreseen by collecting key component contour data in real time and converting the key component contour data into a quantitative integrity index, establishing a state dynamic change track and conducting trend extrapolation, and the method has the advantages of being high in practicability and the like. And finally, carrying out comprehensive decision making according to the prediction result and the real-time load margin.

The invention relates to a control method for improving EDT roller texturing efficiency and high-surface automobile aluminum plate oil storage amount. The control method comprises the steps that (1) a single-rack cold rolling mill is adopted; (2) carrying out roller surface treatment by adopting an electrode electric spark roller grinder, wherein the roughness Ra of a working roller before roughening is less than or equal to 0.4 mu m; the roughness Ra after EDT roughening is equal to 1.95 to 2.2 [mu] m; (3) a single-rack cold rolling mill is adopted for production, the rolling oil temperature is 35 + / -5 DEG C, and the rolling oil pressure is 6.0-9.0 bar; (4) an air cushion type continuous annealing line is adopted for cleaning and solid solution aging treatment; (5) carrying out surface appearance and pit size measurement on the prepared aluminum plate by adopting a 3D optical microscope; and (6) the manufactured aluminum plate is measured through a 3D non-contact optical contourgraph. By means of the method, the requirements for the surface roughness Ra and Rpc of the automobile sheet can be met, the downstream stamping cracking risk and the corrosion spot defect caused by the too large surface pit diameter are reduced, the better high-surface automobile sheet, the higher aluminum sheet surface oil storage amount and the lower friction coefficient can be obtained, and the EDT roller texturing working time can be saved.

The invention relates to the technical field of intelligent diagnosis, in particular to an electric discharge machine machining process intelligent diagnosis method which comprises the following steps of analyzing the electric discharge machine discharge voltage change rate, dynamically adjusting a sampling window and a channel, extracting signal channel switching amplitude characteristics, correcting periodic weight parameters and outputting a dynamic weight adjustment parameter set. And calculating a weighted sum, screening a deviation period, marking an energy anomaly paragraph, and outputting a wear trend identifier. According to the method, dynamic changes of discharge signals are monitored in real time, sampling channels are optimized according to the signal fluctuation trend, weight distribution and linkage analysis among parameters in a period are adopted, energy fluctuation and abrasion information are collected in a sequence form, multi-dimensional data continuously refer to each other in the machining process, trend positioning can be achieved for abnormal phenomena, and the machining precision is improved. The abnormal tracking mechanism of the whole process is perfected, the identification granularity and trend tracing capability of state evolution are improved, and the process monitoring and risk prompting under the complex processing condition are enhanced.

The invention belongs to the technical field of special maintenance in a high-radiation environment of a nuclear power plant, and particularly relates to a digital control system and method for high-radiation boron-containing underwater electrical discharge machining. Comprising a control module, the control module is respectively connected with a human-computer interaction interface, an input / output module, an analog-to-digital conversion module and field layer equipment, the input / output module is connected with a limit switch, and an external alarm and a control instruction are input into the input / output module. And the temperature signal, the gap voltage current and the conductivity are converted by the analog-to-digital conversion module and then are input to the control module. The method has the beneficial effects that in the electric spark discharge machining operation process under the high-radiation boron-containing water environment of a nuclear power plant and the like, centralized and effective control over all field layer equipment is achieved, and the problem that conventional discharge machining equipment cannot be used under the high-radiation boron-containing water environment is solved.

The invention discloses a production process of an injection mold, which belongs to the technical field of injection molds, and comprises the following steps: firstly, carrying out demand analysis and mold design through CAD (Computer Aided Design) software to ensure the rationality of a cavity, a runner, a cooling system and an exhaust structure; then die steel or aluminum materials such as P20 and H13 are selected for material preparation; then rough machining is carried out on a preliminary forming module, and the precision of + / -0.01 mm is achieved through CNC, electric spark and other precision machining technologies; then mirror polishing and heat treatment are carried out to improve the surface quality and wear resistance; after assembly debugging is completed, injection molding parameters are optimized through mold testing; and finally carrying out full-size detection and correction by using a three-coordinate measuring instrument to ensure that the mold meets the design standard. According to the production process, the requirements for precision, efficiency and durability are met, and the production efficiency of the injection mold can be improved. Therefore, the production process of the injection mold solves the technical problem of how to improve the production efficiency of the injection mold.