2724 results about "Surface processing" patented technology

The invention relates to an additive manufacturing method and application of an aluminum-based silicon carbide composite material complex component, and the additive manufacturing method of the aluminum-based silicon carbide composite material complex component comprises the following steps: step 1, uniformly mixing silicon carbide powder and aluminum alloy powder, and drying; 2, establishing a structural model for the target part, and importing the structural model into selective laser melting forming equipment; thirdly, selective laser melting forming is conducted; fourthly, linear cutting and surface treatment are conducted; and fifthly, hot isostatic pressing treatment is conducted. The invention further provides application of the aluminum-based silicon carbide composite material complex component to precise structural components such as aviation structural components, guided missile and satellite components and optical instruments. According to the method, the problem of subsequent large-allowance removal of the aluminum-based silicon carbide composite material component is solved, the wettability between the aluminum alloy and the silicon carbide particles is improved, the mechanical property meets the application requirement, and the aluminum-based silicon carbide structural component with stable performance is obtained.

The invention discloses an intelligent control system and method for shot blasting equipment based on multi-modal perception, and relates to the technical field of industrial surface treatment.The intelligent control system and method for the shot blasting equipment based on the multi-modal perception have the advantages that a technological parameter self-evolution decision-making mechanism with deep reinforcement learning as a core and real-time feedback of discharging quality as a system is established; the shot blasting process is converted from static experience setting to dynamic model driving, a process parameter optimization model serves as a deep reinforcement learning agent, instant reward functions of processing quality, energy consumption, material consumption and equipment loss are comprehensively considered, and the function guide model pays attention to whether the final quality reaches the standard or not, and also pays attention to the real-time reward functions of the processing quality, the energy consumption, the material consumption and the equipment loss. And meanwhile, the comprehensive economic benefits of the whole process are actively optimized, the quality evaluation and prediction model performs real-time and quantitative analysis on visual images of discharged workpieces, and immediately feeds back results to the decision model, so that the system has the learning ability, and autonomously explores and converges to an optimal process parameter combination for specific workpieces and specific states.

The invention discloses a reinforced composite PCB and a preparation method thereof, and belongs to the technical field of PCB preparation. The preparation method of the reinforced composite PCB comprises the following steps: step 1, processing an inner-layer core board to obtain a preprocessed inner-layer core board; 2, cutting, drilling and activating the modified composite film to obtain a treated modified composite film; and 3, sequentially carrying out stacking, hot pressing treatment, pressure relief, cooling, drilling, hole metallization treatment, outer layer pattern transfer, pattern electroplating, outer layer etching, resistance welding, surface treatment, molding and testing on a copper foil, a prepreg, the pretreated inner layer core plate, the prepreg, the treated modified composite film, the prepreg, the pretreated inner layer core plate, the prepreg and the copper foil. And the composite PCB is obtained. The circuit board prepared by the method has excellent thermal stability and mechanical properties.

The invention relates to the technical field of aluminum alloy wire processing, and particularly discloses a high-modulus high-conductivity heat-resistant aluminum alloy material, an aluminum wire, a preparation method and a power transmission cable. According to the high-modulus, high-conductivity and heat-resistant aluminum alloy material provided by the invention, the nanoscale TiB2 particles and the micron-sized SiC particles are compounded in the aluminum alloy powder, a dual-reinforcement system is constructed, and the mechanical property and the electrical property of an aluminum conductor are synergistically improved. The invention further provides a preparation method of the high-modulus and high-conductivity heat-resistant aluminum conductor. According to the process, a multi-stage coupling plastic processing technology of hot extrusion, continuous rolling, drawing and surface treatment is adopted. The grain structure is refined through the dynamic recrystallization effect in the series of machining processes, oxidation film defects on the surface and in the structure are damaged through plastic deformation, the rigidity and the conductivity of the aluminum wire are further optimized, and the technical bottleneck that high modulus, high conductivity and heat resistance of traditional aluminum alloy are difficult to consider at the same time is effectively solved.

The invention relates to the technical field of tunnel engineering prefabricated part production, in particular to a large-diameter duct piece independent kiln assembly line conveying prefabricating method and system. S2, a reinforcement cage and an embedded part are installed; s3, concrete is precisely poured and vibrated; s4, pre-curing and surface treatment; s5, carrying out roller way type flow conveying; s6, hydration heat-driven dynamic maintenance is carried out; and S7, demolding and finished product detection. And S8, mold circulation. According to the large-diameter duct piece prefabricating production line, through technical innovation in multiple aspects of mold, conveying, maintenance, control and the like, the core technical problem in existing large-diameter duct piece prefabricating production is solved, high-precision, high-efficiency, low-energy-consumption and green production of large-diameter duct pieces is achieved, and the large-diameter duct piece prefabricating production line has remarkable technical advantages and wide application prospects and is suitable for large-diameter duct piece prefabricating production. The method can be widely applied to infrastructure construction projects such as shield tunnels, open caisson projects and underground comprehensive pipe galleries.

The invention discloses a surface treatment process of a hydraulic rod and a coating monitoring system, relates to the technical field of electroplating, and aims to solve the problems that various complementary sensing technologies cannot be integrated, information such as thickness, uniformity and microstructure cannot be synchronously acquired in a lossless, in-situ and real-time manner, and closed-loop control cannot be formed based on the information in the background technology. According to the scheme, the method comprises the steps that PR electrolytic degreasing is conducted, a workpiece serves as an anode, an oil film is torn through the oxygen evolution effect, an extremely-thin oxidation film possibly existing on the surface of the workpiece is dissolved, base metal is completely activated, and an optimal combination basis is provided for a follow-up coating; and washing with hot water, namely removing residual alkaline degreasing fluid and emulsified oil stains by using hot water with the temperature higher than 60 DEG C in a stirring and spraying manner. According to the method, multi-dimensional information such as the thickness, the uniformity and the microstructure can be synchronously obtained in a lossless, in-situ and real-time mode in the surface treatment process, closed-loop control is formed based on the information, and it is ensured that plating growth is always located on the optimal track.

The invention discloses domestic ceramic surface treatment equipment, and particularly relates to the technical field of domestic ceramics, the domestic ceramic surface treatment equipment comprises a base, a supporting assembly is arranged on the upper side of the base, a fixing seat is fixedly connected to the upper end of the base, a first grinding assembly is arranged on the upper side of the supporting assembly, and a lifting assembly is arranged on the upper side of the supporting assembly; a second grinding assembly is arranged on one side of the first grinding assembly, a moving assembly is arranged at the lower end of the fixing base, and an adjusting assembly is arranged on one side of the moving assembly. Coherent grinding of the pot edge outline, the inclined inner wall, the outline outer edge and the outline inner edge of the ceramic flowerpot is achieved, the diversified requirements of the market for the appearance of domestic ceramics are met, it is guaranteed that the inner wall grinding pressure is uniform, chamfers on the two sides of a wavy opening can be synchronously ground, time waste and position deviation caused by multi-procedure switching are avoided, and the production efficiency is improved. And precision loss and time waste caused by process dispersion of traditional equipment are avoided, and the overall working efficiency is improved.

The invention relates to the technical field of metal wire processing, and discloses a high-performance metal wire plastic coating process for aerospace engineering, which comprises the following steps: carrying out base material type selection on a metal wire, and carrying out surface treatment of precise cleaning, etching and depth gradient activation; a Ti-Cr alloy and graphene-copper composite transition layer is deposited through a magnetron sputtering technology, and a multi-layer coating structure is formed through electrostatic spraying of a base coating, a fluidized bed dipping function layer and high velocity oxy-fuel spraying of a nano composite coating in sequence; the molybdenum-gold composite sealing layer is prepared by adopting an electric arc spraying technology, and is subjected to vacuum ultraviolet curing enhancement, high-temperature gradient annealing, gradient sintering and vacuum curing treatment; and heat radiation on the surface of the coating is enhanced through laser-induced micro-nano structure regulation and silicon nitride film sputtering. Through collaborative optimization of base material treatment, coating construction, function strengthening and quality control, the interface bonding strength, the comprehensive performance and the environmental adaptability of the spaceflight metal wire coating are remarkably improved, and the service life of the spaceflight metal wire coating is remarkably prolonged.

The invention discloses an aspheric surface processing intelligent feedback control system based on digital twinning, and the system comprises a digital twinning modeling and baseline calibration module which is used for building an aspheric surface processing digital twinning body and generating a baseline; the twinborn update and virtual-real residual calculation module is used for calculating virtual-real residual update digital twinborn bodies; the reinforcement learning candidate strategy generation module is used for generating reinforcement learning candidate strategies through the reinforcement learning strategy network; the model predictive control optimization module is used for establishing a model predictive control optimization problem and performing rolling prediction; the double-strategy fusion control module is used for executing virtual processing simulation and generating a control vector; and the virtual-real closed-loop adaptive convergence execution module is used for executing aspheric surface processing to realize closed-loop adaptive convergence control. According to the method, digital twinning is combined with reinforcement learning and model prediction control, intelligent optimization of aspheric surface machining is achieved, and the method has the advantages of being high in precision and stability and rapid in convergence.

The utility model relates to the technical field of electromagnetic brake production, in particular to electromagnetic brake friction surface machining equipment which comprises a workbench, a supporting frame, an electric guide rail, a clamping assembly and a polishing assembly, the upper end face of the workbench is connected with the supporting frame, a groove is formed in the workbench, and the electric guide rail is connected into the groove; the clamping assembly is connected to the moving end of the electric guide rail, and the grinding assembly is connected to the supporting frame. According to the friction plate clamping device, when the clamping ends of the clamping assembly are in the use state, the multiple clamping ends can synchronously move towards the circle center position, friction plates to be machined are clamped and fixed through movement of the multiple clamping ends, meanwhile, when the friction plates with different thicknesses are machined, the height of the moving end in the height adjusting assembly can be adjusted, and the friction plates with different thicknesses can be clamped and fixed. And after the height of the moving end is changed, the height of the clamping end is also changed, so that the situation that the clamping end is higher than the friction plate to affect normal grinding is prevented.

The invention relates to the technical field of aluminum alloy forging, in particular to a forging process capable of reducing reverse forging coarse grains of 6061 aluminum alloy, which comprises the following steps: acquiring a 6061 aluminum alloy ingot, homogenizing and annealing the 6061 aluminum alloy ingot at 480-520 DEG C for 12-16 hours, cooling to room temperature by water, performing ultrasonic flaw detection, performing turning surface treatment, and alternately forging and pressing in three directions, thereby obtaining the 6061 aluminum alloy. The method comprises the following steps: placing a fine-grain 6061 aluminum alloy forge piece in a graded heating furnace, completing sub-dynamic recrystallization, applying directional pressure stress of 50-80MPa to the 6061 aluminum alloy forge piece, analyzing grain boundary characteristic distribution by adopting an electron back scattering diffraction technology, and obtaining the grain boundary optimized 6061 aluminum alloy forge piece with a discontinuous coarse-grain structure through laser shock strengthening and stress relief annealing. According to the method, the problems that reverse forging coarse grains are caused by uneven strain distribution during forging and pressing, and fine grains and high-density nanoprecipitation cannot be effectively obtained and a grain boundary structure cannot be optimized due to the fact that follow-up forging, heat treatment and stress treatment parameters are difficult to accurately control can be solved.

The invention relates to the technical field of high-power femtosecond laser manufacturing, and discloses a high-power industrial femtosecond laser water cooling structure and a manufacturing method thereof. Comprising the steps that any one of a variable cross-section spiral flow channel, a bionic fin flow channel or a micro-channel array is directly machined in a machine shell water-cooling plate through the five-axis linkage precision machining technology or the micro-nano machining technology, or the printer shell water-cooling plate is integrated through the metal additive manufacturing technology; a reflector base, a heat dissipation chute and a cooling water channel are integrated in the machining process of the water cooling plate of the machine shell; carrying out material and surface treatment process operation; assembling process operation is carried out, a reflecting mirror base is matched with a mortise and tenon joint structure and a machine shell water-cooling plate through high-precision positioning pins, the reflecting mirror base and the machine shell water-cooling plate are rigidly connected in a vacuum brazing or laser welding mode, and a light guide side plate and a runner cover plate are designed into standard modules; the light guide side plate and the runner cover plate are quickly assembled through magnetic attraction positioning and spring buckles.

According to the heat exchanger core body based on the composite three-period minimal curved surface structure and the design method, the advantages of various TPMS structures are integrated, and the balance of efficient heat exchange, low flow resistance and scaling prevention is achieved. The heat exchanger core body based on the composite three-period minimal curved surface structure is formed by combining at least two different three-period minimal curved surface (TPMS) unit structures in space, the TPMS unit structures of the heat exchanger core body in the fluid flowing direction are arranged in a partitioned mode, a Gyandroid structure with small pressure drop is adopted in a fluid inlet area, and the Gyandroid structure with small pressure drop is adopted in a fluid outlet area. A Diamond structure for enhancing heat exchange is adopted in a main body heat exchange area, and a Gyandroid structure with small pressure drop is adopted in an outlet area. The TPMS structure integrates the advantages of various TPMS structures, has a complex three-dimensional curved surface and a larger effective surface area, can better exchange heat with fluid, effectively optimizes fluid flow and reduces flow resistance, and the TPMS structure has the anti-scaling capacity by combining the smooth continuous curved surface characteristic with the surface treatment technology.

The invention provides a system and a method for accurately removing a coating at a mounting position of a sprayed workpiece, and relates to the technical field of surface treatment in mechanical manufacturing, the system comprises a visual scanning module, a positioning module, a control system, an execution mechanism, a real-time monitoring module and an auxiliary device, the method comprises a system initialization and calibration step, a visual scanning and hole site three-dimensional positioning step, a path planning and laser parameter adaptation step, a multi-mechanical-arm collaborative operation deployment step, a coating removal execution and real-time regulation and control step and a quality detection and correction step. According to the method, a dynamic coupling adjustment mechanism of the density between the track points and the laser parameters is achieved, the scanning rate is increased to improve the efficiency, the efficiency and quality dual-optimization target is achieved, and a basis is provided for efficient and intelligent laser coating removal.

The invention relates to the technical field of hot-dip galvanized steel pipe surface treatment, and discloses a hot-dip galvanized steel pipe internal blowing steam electric heating control method and system. The method comprises the steps that the outer diameter, the wall thickness, the surface temperature and steel type information of a galvanized steel pipe are collected, a steam temperature demand value is calculated, the input number and the power duty ratio of sectional type electric heating pipes are dynamically adjusted according to the temperature rise demand, and the heating power is corrected in real time through a cascade closed-loop control system; and calculating the solidification speed of the zinc liquid according to the wall thickness, and processing the thin-walled pipe in a pulse injection mode. The technical problems that in the prior art, steam temperature control precision is insufficient, heating power distribution lacks dynamic adaptation, temperature closed-loop control response lags behind, and a zinc layer on the inner wall of the thin-walled pipe is uneven are solved.

The invention provides a method for automatically detecting the coverage rate of a blade part after shot blasting, which realizes objective evaluation and screening of the surface coverage rate of the part based on an intelligent platform, and comprises the following steps: S1, establishing a database for comparison through sample coverage rate calibration; s2, performing shot blasting treatment on the part to form a to-be-detected surface; s3, the part subjected to shot blasting treatment is fixedly arranged in a designated area and transferred to a detection platform; s4, carrying out image acquisition on the shot blasting area of the part by adopting intelligent visual equipment; s5, comparing the acquired image with a calibration picture in a database through image analysis software, and judging a coverage rate value of the part; and S6, re-checking and post-processing the judgment result, and screening out qualified parts. According to the method, the roughness of parts such as blades after shot blasting can be quantitatively detected, and the coverage condition of the parts after surface treatment can be more objectively judged; the detection efficiency can be improved, and the problem of missing detection can be effectively avoided.

The present application relates to a high-roughness surface treatment method for a braking steel backing, and belongs to the technical field of surface treatment of braking steel backings. The method comprises the following operation steps: step one, placing onto a feeding table a braking steel backing to be processed, and conveying the braking steel backing by means of a conveyor belt so as to perform processing; step two, in an HRT polishing assembly, sequentially passing the steel backing through an ordinary belt sander, a forward planetary gear, a reverse planetary gear and an HRT belt sander to complete the processes of surface roughness treatment and deburring; step three, in a cleaning and rust-proofing assembly, removing processing residues and a saponification liquid from the surface of the braking steel backing by means of a rough cleaning sprayer, and then an air knife I blowing off a cleaning liquid and metal residues; step four, using a rust-proofing sprayer to spray a rust-proofing liquid, and then performing double air cutting; and step five, placing the braking steel backing which has been subjected to surface treatment into a material box for standby storage. By means of treating the surface of the braking steel backing bonded with a friction material, the effects of more stable quality and high-roughness mating surfaces are achieved.

A concrete surface processing machine (100) for processing a concrete surface, wherein the concrete surface processing machine is arranged to be supported on the concrete surface by one or more support elements (150) extending in a base plane (101) of the machine parallel to the concrete surface, wherein the concrete surface processing machine is arranged to rotate (R) about an axis (C) normal to the base plane (101) by the one or more support elements (150), wherein the concrete surface processing machine comprises control unit (110) connected to at least one laser range finder (120) arranged pointing in a fixed direction from the concrete surface processing machine, and wherein the control unit (110) is arranged to determine a boundary geometry of the concrete surface based on a sequence of ranges obtained by the laser range finder (120).

The invention discloses a method for improving the thermal stability of a gradient nanocrystalline structure, and belongs to the technical field of metal material processing. According to the method, Mg-RE series alloy is used as a matrix, a matrix alloy ingot is heated for solution treatment, surface strengthening is carried out after water quenching and cooling, a gradient nanocrystalline layer is formed on the surface layer of an alloy sample, finally, the alloy sample is transferred into an aging oven for low-temperature aging, and cooling is carried out, so that the magnesium alloy is obtained. According to the method, the thermal stability of the magnesium alloy gradient nanocrystalline is improved through a synergistic strategy of component design and low-temperature aging, so that the grain growth rate of Mg-RE alloy gradient nanocrystalline structures treated by various different surface strengthening methods in a high-temperature environment can be remarkably reduced; the core bottleneck that a traditional magnesium alloy gradient nanocrystalline material is poor in thermal stability and single in applicable surface treatment method is solved; and the process does not need special equipment, can be seamlessly connected with various existing magnesium alloy surface strengthening production lines, and is low in process cost, simple and convenient to operate and easy to industrially popularize.

The invention discloses a multifunctional multi-station continuous production device for surface modification, and relates to the technical field of special equipment machining. The device comprises a machining table, a rotating table is rotationally arranged on the upper surface of the machining table, three U-shaped material frames are fixedly arranged on the upper surface of the rotating table, the three U-shaped material frames are distributed and fixed to the upper surface of the rotating table in an annular array mode, two L-shaped fixing frames are fixedly arranged on the upper surface of the machining table, and air cylinders are fixedly arranged at one ends of the two L-shaped fixing frames; according to the polishing machine, through the arranged reciprocating polishing mechanism, under the action of a driving rod, a connecting shaft, a push-pull rod, a connecting sleeve and a mounting frame in the reciprocating polishing mechanism, the polishing machine body horizontally moves in a reciprocating mode, the outer wall of the winch shell is polished in a reciprocating mode, and the polishing operation of the outer wall of the winch shell is sufficient without omission; and therefore, automatic and sufficient polishing of the outer wall of the winch shell is conveniently achieved, and the surface machining treatment effect of the winch shell is effectively improved.

The invention relates to a welding presetting method for a densely-arranged array group welding seam diffusion welding middle layer, and belongs to the technical field of aero-engines. The welding presetting method specifically comprises the following steps that a to-be-welded piece plate is prepared, and surface machining treatment is conducted on the to-be-welded piece plate; laying a middle layer on the surface of the to-be-welded plate; welding and fixing the two ends of the middle layer and the to-be-welded plate; carrying out multi-welding-spot welding and fixing on the middle layer and the position of each to-be-processed densely-arranged array column on the surface of the to-be-welded piece plate, and completing presetting of the middle layer; densely-arranged array columns and densely-arranged array column holes are machined in the to-be-welded piece plate with the preset middle layer, and the redundant middle layer is removed. According to the invention, proper presetting of the interlayer lamination is realized, the phenomena of hole blocking and hole shrinkage caused by melting of redundant interlayer alloy are eliminated, the influence of the redundant interlayer alloy on the performance of a base material after melting is avoided, and the manufacturing conformity and the use performance of the laminate cooling structure are improved.

The utility model relates to the technical field of surface processing, and discloses a novel portable plasma spraying device. The spraying device comprises a spraying gun and a spraying mechanism, the spraying mechanism is erected on the spraying gun, the spraying mechanism reduces the temperature of the spraying mechanism by accelerating heat dissipation of cooling liquid and reduces chippings splashing backwards, and a control switch is rotated to control gas flow so as to save gas use. After the gas tank is fixed through the connecting sleeve arranged at the lower end of the connecting pipeline, the connecting sleeve is rotated to enable the clamping block and the clamping groove to be clamped and fixed, so that gas in the gas tank enters the connecting pipeline through the vent hole, and on the contrary, the vent hole is blocked and fixed, and the gas in the gas tank is saved. The cooling groove is connected with the heat dissipation pipe, so that water dissipates heat through the heat dissipation pipe, meanwhile, the heat dissipation fan is arranged inside to accelerate heat dissipation of cooling liquid, and the baffle is arranged at one end of the spray head to reduce backward splashing chippings.

The invention discloses a quality monitoring method and device for a metal surface treatment process, equipment and a medium, and belongs to the technical field of computers. The method comprises the following steps: acquiring surface three-dimensional data of a metal object; according to the surface three-dimensional data and cladding parameters, target position data after cladding is determined; in the process of carrying out laser cladding on the metal object, actual position information after cladding and surface regularity information after cladding are obtained; and identifying whether the actual position information is consistent with the target position information or not so as to carry out quality monitoring on the cladding thickness, and identifying whether the surface regularity information after cladding accords with the target regularity or not so as to carry out quality monitoring on the cladding regularity. According to the technical scheme, real-time monitoring and multi-dimensional quality evaluation in the cladding process can be achieved, reworking is reduced, and the timeliness and comprehensiveness of cladding quality monitoring are improved.

The invention discloses a multi-stage gradient reinforced composite filler for a high-filling embankment and a construction process of the multi-stage gradient reinforced composite filler, and belongs to the technical field of embankment fillers, and in the multi-stage gradient reinforced composite filler, the overall structure stability is remarkably improved through layered material combination. The self-locking structure of the three-level aggregate enhances the non-deformability of the filler, the large-particle-size broken stones form skeleton support, the modified fly ash fills pores to improve the compactness, and the machine-made sand surface treatment technology enhances the cohesive force among particles. The cementitious material realizes synergistic development of early strength and later strength, rapid hardening of the sulphoaluminate cement and continuous hydration of the superfine slag powder cooperate with each other, and the microstructure is optimized in cooperation with the nano material. The gradient reinforcement system exerts characteristics of different materials in a layered mode, the deep steel-plastic belt anchors the foundation to prevent slippage, the middle-layer fiber grid disperses stress, the surface-layer non-woven fabric inhibits shallow-layer cracking, three-dimensional protection from inside to outside is formed, microcracks are continuously repaired through the microbial agent, shrinkage deformation is compensated through the expanding agent, and the long-term service performance is comprehensively guaranteed.

The invention relates to the technical field of thermoelectric material surface treatment, and provides a bismuth telluride-based thermoelectric material wafer surface treatment method which comprises the following steps: acquiring multi-dimensional data such as current density distribution, temperature field distribution, solution concentration gradient and plating thickness increment in real time through a sensor array; performing iterative calculation on the data based on a thermoelectric performance parameter optimization model to generate an optimal parameter combination of chemical oil removal, activation, nickel plating and tin and bismuth plating processes; dynamically adjusting the anode plate area ratio, the current density threshold value and the solution temperature fluctuation range of the electroplating equipment; a self-adaptive feedback mechanism is used for correcting parameter deviation, so that a uniform thermoelectric function layer structure is formed on the surface of the wafer. According to the method, the uniformity and the thermoelectric performance stability of the surface coating of the bismuth telluride thermoelectric wafer can be improved, the defect rate is reduced, and the production efficiency and the product consistency are improved.

The invention discloses a forming processing method of a composite material gas cylinder, which comprises the following steps of: positioning and embedding a pre-processed metal valve seat into a cavity of an injection mold, and performing high-pressure injection molding to form a lining pre-formed body wrapping the metal valve seat; and transferring the liner preform to blow molding equipment for blow molding integrated molding to prepare the gas cylinder liner which is integrated with the metal valve seat in a weldless manner, zero in interface gap and high in bonding strength. The method comprises the following steps: calculating laying parameters of a composite gas cylinder winding layer by adopting a grid theory on the basis of a dry-method prepreg yarn principle, and obtaining a laying layer design scheme; laying a carbon fiber winding layer on the outer surface of the gas cylinder lining subjected to surface treatment according to a laying design scheme based on a dry-method prepreg yarn winding technology; and the high-pressure composite material gas cylinder product is obtained through cooperative treatment of heating curing and mold pressing. The problems that the precision requirement of a traditional technology is difficult to meet and labor cost is high are solved.

The invention provides a laser cladding process parameter determination method based on finite element analogue simulation, and relates to the technical field of surface treatment. Comprising the following steps: importing a substrate material and a cladding layer material into finite element three-dimensional software to construct a corresponding finite element model; setting laser power, a preset temperature and a scanning path of the finite element model to obtain a finite element model of a variable process parameter set; performing finite element simulation by utilizing the final finite element model, and acquiring stress-strain data corresponding to each process parameter by utilizing a nonlinear heat conduction equation and an elastic-plastic stress-strain equation; and determining an optimal process parameter combination according to the stress-strain data. The method solves the problems that in the prior art, laser cladding Ni-60% WC composite powder lacks a systematic and accurate process parameter determination method when applied to the 45 steel surface, so that cracks, air holes and other defects are prone to being generated in a coating, and the comprehensive performance is difficult to stably improve.

The invention discloses intelligent hard alloy bar manufacturing surface treatment equipment, and relates to the technical field of intelligent hard alloy bar manufacturing surface treatment. The intelligent hard alloy bar manufacturing surface treatment equipment comprises a machine table and expansion pieces, the expansion pieces are arranged on the two sides of the machine table, motors are fixedly installed on the surfaces of the expansion pieces on the two sides, and clamping plates are fixedly installed at the output ends of the motors on the two sides; the motor and the telescopic device are electrically connected with the machine table, the machine table is communicated with a power source, a plurality of telescopic rods are arranged on the surface of the machine table, elastic pieces are arranged between the fixed ends and the free ends of the telescopic rods, notches are formed in the surfaces of the free ends and the output ends of the telescopic rods, and an arc plate is fixedly installed at the free end of each telescopic rod. By arranging the arc plate, the hard alloy metal bar does not need to be fixed through drilling holes in the two sides, machining procedures are reduced, the integrity of the bar is prevented from being damaged, meanwhile, additional two-side treatment does not need to be conducted on the polished bar, the machining efficiency is greatly improved, and material losses are reduced.

The invention discloses a gear micro-texture current-assisted laser processing method and device. The method comprises the steps that a gear three-dimensional model is established, and a curved surface processing path is generated; a laser is controlled to emit laser, the gear space attitude is adjusted, a dynamic focus lens is controlled to adjust the focal length of a laser beam based on a curved surface machining path, an X-direction galvanometer and a Y-direction galvanometer are controlled to adjust the direction and angle of the laser beam, and a laser spot is focused on a to-be-machined area of the gear; meanwhile, high-frequency pulse current is applied to the to-be-machined area, and the current waveform is sine wave; and high-pressure airflow is jetted. The laser energy absorption rate of the gear surface is increased, the temperature field is homogenized, and the plasma shielding effect is weakened, so that the integrity and uniformity of the texture contour are improved, splashing and burrs are reduced, and the machining quality and efficiency are improved. And machining is suitable for the complex curved surface of the gear, high-precision and high-consistency micro-texture machining is achieved, and the requirements for lubrication, friction reduction and fatigue resistance of a high-end gear are met.

The invention discloses a plasma-assisted surface activation method. The method comprises the following steps: placing a material matrix in a reaction cavity, vacuumizing, introducing oxygen and inert gas, exciting a radio frequency power supply and a microwave power supply to form multi-frequency composite plasma, and treating the material. The physical bombardment of the radio frequency plasma and the chemical activation of the microwave plasma have a synergistic effect, and deep cleaning and efficient modification of the surface of the material are realized in a low-vacuum environment. The surface water contact angle of the treated material is reduced to 35 degrees or below, the adhesive force of a coating reaches 0-1 level, the tensile shear strength is improved to 22.5 MPa or above, the problems that a traditional surface treatment method is unstable in effect and insufficient in modification depth are effectively solved, and the surface treatment method has the outstanding advantages of being high in treatment efficiency, uniform and lasting in modification effect, environmentally friendly and the like.