8492 results about "Scrap" patented technology

The invention discloses an intelligent welding forming method and system for a green building steel heating radiator, and the method comprises the following steps: carrying out the surface defect recognition of a steel heating radiator base material based on an AI visual inspection system, recognizing a qualified base material, and automatically matching the type of a welding material from a material database according to the material and thickness parameters of the qualified base material. Welding parameters are intelligently matched through AI visual inspection and a neural network model, a laser and friction stir hybrid welding process is combined, traditional manual operation is replaced, the welding efficiency and precision are improved, and the problems of uneven welding seams and the like are solved; welding data are analyzed in real time through a multi-mode AI model, parameters are dynamically adjusted, intelligent defect recognition and repair welding are achieved in cooperation with 3D visual inspection, and the quality stability is improved through whole-process monitoring; smoke dust is treated through an environment-friendly process, acid pickling is replaced with mechanical rust removal, efficient recycling of materials is achieved through waste recycling, a green manufacturing system is constructed, and the sustainable development requirement of green buildings is met.

The invention relates to the technical field of carbon emission, in particular to a full-life-cycle carbon footprint tracking management platform for power equipment. The platform collects carbon emission parameters in the whole process from raw material input to scrap recovery in real time through a monitoring equipment network and a sensor array to generate an original monitoring data stream; performing multi-source fusion and deviation correction on the data stream to generate a standardized carbon footprint sequence; a carbon emission trend model is constructed based on sequence extraction correlation features, and a dynamic adjustment strategy is generated when an integration fracture risk or emission abnormity is detected; transmitting an abnormal signal through a mobile terminal interface, receiving an adjustment instruction, and generating a closed-loop control signal; storing the extended carbon footprint data to construct a full life cycle file; estimating emission fluctuation to generate a stability strengthening strategy; and a monitoring-analysis-control-prediction four-order optimization link is formed. According to the invention, accurate tracking and dynamic optimization of carbon emission are realized, data integrity and management timeliness are improved, and technical support is provided for green manufacturing of power equipment.

The invention discloses a mechanical part pre-deformation clamping process method based on simulation analysis, and relates to the technical field of mechanical manufacturing. The method comprises the following steps that S1, a design drawing, material characteristic parameters, blank size specifications and technical parameters of a clamp system of a to-be-machined part are collected; according to the method, an integrated simulation model of a part, blank and clamp system is constructed, blank key parameters and the constraint relation of all parts are fused, multi-field coupling simulation is combined, the theoretical deformation field pre-judgment precision is greatly improved, reliable data support is provided for pre-deformation design, a target compensation curved surface is generated through a geometric inversion algorithm, and the pre-deformation design precision is improved. By matching with a pre-deformation clamp with an adjusting mechanism, reverse pre-deformation is realized, differences of different batches of blanks are adapted, machining and rebound deformation are effectively counteracted, simulation and process parameters are corrected through a detection result by means of a closed-loop optimization mechanism, machining precision stability is guaranteed, trial cutting cost and rejection rate are reduced, and the method is suitable for machining of various easily-deformed parts.

The invention discloses a scrap iron removing device for waste cutting fluid separation, and relates to the technical field of machine tool machining, the scrap iron removing device comprises a settling tank, an L-shaped flow slowing plate is arranged on the inner side of the settling tank, a liquid flowing channel exists between one side of the L-shaped flow slowing plate and the inner side wall of the settling tank, and inclined plates are fixedly arranged on the lower side of the L-shaped flow slowing plate at equal intervals; the inclined plates incline downwards towards the sides away from the liquid flowing channel, overflow notches are formed in the sides, away from the liquid flowing channel, of the settling tanks, the overflow notches are formed in the upper sides of the inclined plates, and defoaming mechanisms are arranged on the lower sides of the L-shaped flow slowing plates; in a narrow space between the inclined plates, the defoaming net shakes repeatedly, the surface tension of foam and an oil film is quickly destroyed through segmentation and friction effects, and metal scraps released by foam breakage quickly sink under the action of the inclined plates, so that the purposes of quickly eliminating the foam and precipitating the metal scraps are achieved, the settling time is greatly shortened, and the service life of the defoaming net is prolonged. And the foam is prevented from entraining a large amount of metal chippings to enter a follow-up circulating pipeline to increase follow-up pressure.

The invention relates to a negative pressure dust collection type cutting machine, and belongs to the technical field of cutting machines, the negative pressure dust collection type cutting machine comprises a cutting machine workbench, a cutting module, a negative pressure dust collection module, an explosion-proof filtering system and a control system, the cutting module comprises a three-dimensional five-axis cutting mechanism and a high-power laser cutting head, and the high-power laser cutting head is loaded at the driving end of the three-dimensional five-axis cutting mechanism. The dust collector has an anti-explosion effect and an environment-friendly discharge function, and is provided with an anti-static pipeline, an inert gas injection device and a spark catcher aiming at flammable metal dust, so that the explosion risk can be remarkably reduced, multi-stage filtration is carried out by adopting the sintered metal filter cartridge, the HEPA filter screen and the like, discharged air meets the environment-friendly standard, the sewage problem of traditional wet dust collection is avoided, and the dust collector is suitable for popularization and application. And the metal plate is fixed through the evenly-distributed adsorption holes, plate deviation caused by vibration or scrap accumulation in the cutting process is prevented, and the precision of the cutting path is improved.

The invention belongs to the technical field of aluminum alloy production, and particularly discloses a low-carbon environment-friendly method for producing a 3104 alloy blank with a high secondary aluminum proportion, which comprises the procedures of smelting, melt purification, online degassing filtration, continuous casting and triple continuous rolling, and is characterized in that alloy components are optimized, secondary aluminum waste is used in a large proportion, the Fe content is increased, and the production cost is reduced. Iron and elements such as manganese in the aluminum alloy form intermetallic compounds, the intermetallic compounds can serve as heterogeneous nucleation, obviously refine alloy grains during casting and increase Fe content, the performance of the 3104 alloy blank is improved, meanwhile, aluminum is replaced with iron, the main material cost can be reduced, in addition, due to the fact that the rolling temperature of an inlet of each rack is high, and meanwhile the finish rolling temperature is also high, the service life of the 3104 alloy blank is prolonged. The self-tempering effect is achieved, internal dislocation of materials is eliminated, the blank edge cracking condition is improved, strip breakage caused by the edge cracking problem in the subsequent rolling process is avoided, safe production is guaranteed, the main material cost is reduced, meanwhile, the blank performance is improved, the 3104 alloy blank is efficiently produced in a high-quality mode, and the purposes of low carbon and environment protection are achieved.

The invention provides a steel cutting and production scheduling method and device based on dynamic risk assessment, and relates to the field of steel processing pre-production management. Order, equipment and inventory data are collected in real time, and a multi-dimensional numerical matrix is constructed to achieve data structured expression; adopting a Monte Carlo method to generate a candidate production scheduling sequence, combining leftover material loss and delay risk dynamic evaluation, and fusing simulated annealing and an adaptive threshold mechanism to carry out iterative optimization; and through probability similarity screening and regression fitting, an optimal production scheduling scheme is determined in an error allowable range. The method effectively balances the production efficiency and the resource utilization rate, reduces the cutting loss and the delivery risk, and is suitable for the intelligent production scheduling decision of a complex manufacturing scene.

The invention discloses laser cladding repairing equipment for an exhaust valve rod of a marine main engine. The laser cladding repairing equipment comprises a rotating mechanism, a cleaning mechanism and a repairing mechanism. The rotating mechanism adopts a plurality of stepping motors to drive friction wheels, self-centering clamping and intermittent rotation of the exhaust valve rod are achieved through a hydraulic cylinder and a plane connecting rod mechanism, it is ensured that positioning is accurate, and the rotating mechanism adapts to workpieces with different diameters. The cleaning mechanism is arranged below the rotating mechanism, a centrifugal fan is used for simultaneously driving a grinding disc to rotate at a high speed to conduct surface grinding, scrap iron is discharged in time through the negative pressure suction function of the centrifugal fan, and cleaning and dust removal are integrated. And the anti-diffusion cover and the anti-diffusion plate are matched to form a local closed area, so that dust dissipation is effectively inhibited. The repairing mechanism adopts a mechanical arm to carry a laser cladding head, the curved surface of the valve rod can be tracked with high precision, and automatic cladding is completed. The equipment integrates automatic clamping, efficient cleaning, synchronous dust removal and intelligent repairing, and the automation level, the surface treatment quality and the operation safety of repairing of the exhaust valve rod are remarkably improved.

The cutting device comprises a box body, a workbench is fixedly installed at the upper end of the box body, a cutting groove is formed in the middle of the workbench, fixing devices are fixedly installed on the front side and the rear side of the upper end of the cutting groove correspondingly, and a protective cover is installed on the right side of the upper end of the box body; a connecting plate is fixedly installed on the left side between the two fixing devices, and a cleaning device is installed between the protective cover and the connecting plate. According to the cutting device for household appliance accessory machining, the cooling mechanism is arranged, the water spraying cooling function, the scrap collecting function and the filtering circulation function are combined, cyclic utilization of cooling water is achieved through a rectangular telescopic pipe, a collecting tank and a filtering net frame, and water resource consumption is remarkably reduced; and the arranged cleaning device is automatically attached to the surface of the accessory in the cutting process through spring-sliding rod linkage, rolling wheel-splayed scraping plate and other structures, chippings are scraped and swept into a cutting groove in real time, and manual intervention is not needed.

The invention discloses an injection mold based on waste recovery, and relates to the technical field of injection molds for waste recovery, the injection mold based on waste recovery comprises a mold base and a mold extrusion disc, and a sliding groove is formed in the side wall of the mold base. According to the injection mold based on waste recovery, before injection molding, thrust is applied to the shoveling plate through the fixed mold disc, so that the thrust spring is compressed, the shoveling plate is pushed to reset through the elastic force of the thrust spring after the injection molding work is completed, leftover materials existing in a gap between the mold disc and the mold base are shoveled, and the injection molding efficiency is improved. The waste leftover materials can be conveniently collected, and the problems that the leftover materials remain in the gaps of the mold for a long time and are difficult to remove, and the mold cannot be closed easily after being accumulated for a long time are solved. The problem that leftover materials generated by matching gaps in the injection molding process of injection molding products are difficult to remove is solved.

The invention provides a discharging mechanism of laser cutting equipment, and belongs to the technical field of laser cutting equipment.The discharging mechanism comprises a cutting table, a vibration assembly and a cutting assembly, the vibration assembly and the cutting assembly are arranged on the cutting table, a discharging groove and a scrap groove are formed in the outer walls of the two sides of the cutting table respectively, and a sieve plate and a cleaning plate are installed on the inner wall of the cutting table respectively; a conveying assembly is installed on the cutting table and comprises a lug plate, a motor, a conveying wheel, a transmission belt and a nail plate. The conveying belt is matched with the nail plate to directly convey and discharge workpieces after cutting the workpieces, and meanwhile, the conveying belt is matched with the sieve plate and the cleaning plate to separately discharge and collect the workpieces and chippings generated in the cutting process; in this way, the situation that the overall quality is affected due to the fact that the surfaces of the workpieces are scratched by friction and collision in the follow-up transferring process due to mixed collection of the chippings and the workpieces is avoided, meanwhile, the follow-up chippings are separated and recycled in a centralized mode, the chippings can be reused through smelting in the follow-up process, and therefore the cost of raw materials is reduced.

The invention discloses a welding device for municipal road pipeline laying, and particularly relates to the technical field of pipeline welding, the welding device comprises a movable base, positioning assemblies are arranged at the upper end of the movable base, a rotary welding assembly is arranged between the two positioning assemblies, and a grinding assembly is arranged at the upper end of the movable base. An air blowing assembly is arranged at the right end of the rotary welding assembly, and first supporting assemblies are arranged on the front side and the rear side of the movable base. On the premise that the positioning assembly does not need to be removed, synchronous treatment of butt joint positioning, grinding, cleaning and welding of the two steel pipes is achieved, gap deviation at the steel pipe connector is effectively reduced, a good foundation is created for welding, impurities and unevenness on the surface of the connector are removed, welding seams can be better fused, and the welding quality is improved. Meanwhile, scraps are removed in time, impurities are prevented from being mixed into welding seams, the construction efficiency is remarkably improved, and the labor intensity and the labor cost are reduced.

The invention discloses a preparation method of a precise seamless steel tube for a drill rod of a rotary drilling rig, and relates to the field of steel tubes. Comprising the following steps that raw materials are prepared and smelted, molten iron or high-purity waste steel with low phosphorus content, low sulfur content and low gas content is selected as a main raw material, and then the main raw material is subjected to external refining, component fine adjustment and continuous casting and blank treatment; hot piercing is carried out, specifically, the continuous casting round billet is loaded into an annular heating furnace, a multi-section heating system is adopted for heating, and then hot piercing treatment is carried out in a two-roller skew rolling piercing machine; hot rolling extension is conducted, specifically, the perforated tubular billet is rapidly fed into an online heating furnace, and then rolling is conducted on a multi-rack retained core rod or full-floating core rod continuous pipe rolling machine; and sizing / reducing, and rapidly heating. The steel pipe has rigidity, strength and humanity, the fatigue life of the steel pipe is prolonged, meanwhile, the surface smoothness of an inner hole is high, the dimensional tolerance of the inner diameter and the outer diameter is accurate, the wall thickness uniformity is high, the straightness is good, and in addition, the steel pipe also has high internal cleanliness and good wear resistance.

The utility model relates to the technical field of lathe machining chipping treatment, and discloses a lathe machining chipping treatment device which comprises a treatment box, a filter plate is arranged in the lathe machining chipping treatment device, cooling liquid mixed with metal chippings is poured into the treatment box, in the pouring process, the metal chippings in the cooling liquid are filtered through the filter plate, and the metal chippings in the cooling liquid are filtered through the filter plate; at the same time, an output shaft of a motor drives a reciprocating screw rod to rotate, the reciprocating screw rod rotates to drive a scraping plate to reciprocate left and right, and when the scraping plate moves left and right, the metal chips accumulated on the surface of the filter plate can be pushed into two slag discharging holes; and compared with a manual treatment mode of a worker, the metal scrap treatment efficiency can be effectively improved, time can be saved, meanwhile, the metal scraps in the cooling liquid can be more thoroughly cleaned, waste is avoided, and application and popularization are facilitated.

The invention relates to the technical field of steelmaking, in particular to a steelmaking process based on a Q420 slab, which comprises the following steps: molten iron, scrap steel and pig iron are put into a converter for melting to obtain molten steel, and the molten steel is smelted in the converter and then transferred into a ladle refining furnace for refining; acquiring a fluctuation period to determine whether the removal efficiency of the inclusions in the molten steel is qualified or not; determining the nodulation condition of the slag layer based on the judgment result that the removal efficiency of the inclusions is unqualified so as to determine that the viscosity of the whole slag layer is unqualified or the viscosity of the local slag layer is unqualified; the addition amount of fluorite is determined based on the judgment result that the viscosity of the overall slag layer is unqualified, or the pulse frequency of argon or the refining duration of molten steel is adjusted based on the judgment result that the viscosity of the local slag layer is unqualified; and the refined molten steel is subjected to vacuum degassing treatment and then subjected to continuous casting to obtain a slab, and after the slab is subjected to flaw detection, defect characterization parameters are determined so as to adjust the attenuation rate threshold value. The purification degree of the molten steel is improved.

The invention discloses a scrap aluminum classification and rapid identification method, and relates to the field of scrap aluminum classification and rapid identification, the method comprises the following steps: S1, grading pretreatment: to-be-sorted scrap aluminum is conveyed into a three-layer vibrating screen machine through a conveying belt for grading screening, and different sizes of scrap aluminum are sorted out; and S2, impurity separation is conducted, specifically, the classified scrap aluminum is conveyed into a drum-type magnetic separator, magnetic impurities are removed, then the scrap aluminum subjected to magnetic separation is conveyed to an airflow separator, light non-metal impurities are separated, then the scrap aluminum is conveyed to an objective table through a conveying belt, full-process automatic treatment is conducted, manual dependence is reduced, the production efficiency is improved, and the production cost is reduced. A single production line can reduce the workload of sorting workers; and compared with manual sorting, due to the fact that classification is accurate, the rejection rate of the regenerated aluminum alloy can be effectively reduced, and economic benefits are remarkably improved.

The embodiment of the invention provides a non-steel impurity detection method and device, a server and a storage medium, and relates to the technical field of scrap steel detection. Acquiring a scrap steel image acquired by image acquisition equipment; each scrap steel image comprises part of scrap steel in the dumper; respectively inputting the scrap steel image into a pre-trained semantic segmentation model and an instance segmentation model for impurity identification, and determining non-steel impurities in the scrap steel image according to an identification result output by the semantic segmentation model and an identification result output by the instance segmentation model; and performing quantitative analysis on the non-steel impurities of the whole vehicle according to the non-steel impurities in the multiple scrap steel images. And manual visual sorting is not needed, so that the detection precision of the non-steel impurities can be improved, and the omission ratio and the false detection ratio are reduced.

The invention discloses a device and method for preparing biochar from corncobs, and belongs to the technical field of biochar preparation, the device comprises a machine base, a frame is fixed outside the machine base, an outer cylinder is horizontally fixed on one side of the machine base, and the outer cylinder is fixedly connected with the frame; the crushing seat is arranged above the outer cylinder; the combustion system is arranged on one side of the outer barrel, and the combustion system is externally connected with a hot gas booster fan; the sealing end cover is fixed in the outer cylinder body; the carbonization cylinder is rotationally mounted on the machine base, and one end of the carbonization cylinder is coaxially and rotationally connected with the sealing end cover; the heat control unit is arranged in the annular cavity of the carbonization cylinder; the material guide channel is arranged on the sealing end cover; the filter material unit is fixed in the carbonization cylinder; according to the device, a scrap mixture can be graded according to the particle size, primary carbonization of the scrap mixture is achieved, then the scrap mixture is remixed and then subjected to high-temperature pyrolysis carbonization, and the purity and quality of biochar preparation are improved.

The invention discloses a method for preparing 3003 alloy container aluminum foil from high-regeneration aluminum. The method comprises the specific steps of smelting, continuous casting and rolling, homogenizing annealing, cold foil rolling, finished product annealing and checking and packaging. During smelting, the secondary aluminum waste and the electrolytic aluminum liquid are used at the same time, the quality of the aluminum melt is guaranteed, and therefore the short-process technology that high-proportion secondary aluminum waste is used, and continuous casting and continuous rolling coils are directly produced through the electrolytic aluminum liquid is achieved; a continuous casting and rolling production process is adopted to directly use aluminum melt to produce an aluminum coil with the thickness of 3-5mm, so that 1-2 rolling passes can be directly reduced, energy is saved, consumption is reduced, the production cost is reduced, and obvious economic benefits and social benefits are achieved; compared with 25-30 hours of homogenizing annealing of cast-rolled blanks in the prior art, the time is shortened by 5 hours, the material production process flow can be simplified, the operation intensity of staff is relieved, the metal in-process time is saved, and the production cost is reduced.

The invention relates to the technical field of equipment manufacturing, in particular to a cutting device for a threaded air-tight seal buckle of an oil casing based on industrial machinery manufacturing, which comprises a case, a cutting component is mounted in the middle of the top of the case, partition plates are mounted on two sides of the inner wall of the case, and mounting frames are mounted at the bottoms of one sides of the partition plates. A mounting frame is arranged on the machine box, a turnover mechanism is arranged on the mounting frame, a three-jaw chuck used for clamping an oil casing air-tight seal buckle is mounted at the end of the turnover mechanism, the turnover mechanism is used for driving the three-jaw chuck to rotate by 180 degrees, a funnel is mounted in the middle of the bottom of the machine box, and a supporting frame is mounted at the bottom of the machine box. Two threads of the oil casing can be cut, all-around cutting machining is achieved, effective filtering performance is formed, cooling liquid recycling is achieved, scrap accumulation and blockage are prevented, the effect of automatically cleaning the filtering cloth is formed, repeated dismounting and cleaning are not needed, the cleaning difficulty is lowered, and the service life of the filtering cloth is prolonged.

The invention relates to the technical field of steel wire preparation, in particular to a high-strength prestressed steel wire preparation device and a use method thereof.The device comprises a pay-off mechanism, a pretreatment unit, a drawing mechanism, a heat treatment furnace, a cooling device, a stress applying mechanism, an online stress detector and a take-up mechanism; the stress applying mechanism comprises a tension roller set driven by a servo motor, a hydraulic damper and an on-line stress detector, and the on-line stress detector monitors the strain of a steel wire in real time through an optical fiber strain sensor and is linked with the PLC control system; dynamic prestress control and a multi-stage heat treatment process work cooperatively, so that the tensile strength of the steel wire stably reaches 1570 MPa or above, a closed-loop control tension system and an online detection technology are adopted, the prestress applying precision is high, automatic optimization of process parameters is achieved through an intelligent PLC system, the product percent of pass is greatly increased, and the production cost is reduced. And the energy consumption and the rejection rate are greatly reduced.

The invention relates to the field of metallurgy and the field of image recognition, in particular to an AI scrap steel type recognition method based on machine vision, and the method comprises the steps: obtaining image frame data with scrap steel in a scrap steel unloading scene; randomly dividing according to a proportion to form a data set; establishing a target detection model according to the data set, training the target detection model by using the data set, and obtaining a trained detection model; real-time video stream image frames of a scrap steel grading system are used for reading to obtain real-time field images, and the real-time field images are input into the trained detection model; and an output result of the trained detection model is sent to a scrap steel grade judgment system and is compared with a scrap steel material type standard library, and a grade judgment result is obtained. The method has the advantages that in the unloading scene of the scrap steel unloading site, automatic scrap steel grading is achieved, the improved network model aims at the requirement for recognizing the position and size of the object coordinate frame, the positioning accuracy and the recognition accuracy are improved, the labor intensity of workers is reduced, and the inspection speed is increased.

The invention discloses a powder metallurgy pressing die, and belongs to the technical field of powder metallurgy, the powder metallurgy pressing die comprises a base, a plurality of supporting rods are fixedly mounted at the upper end of the base, the bottoms of the supporting rods are in threaded connection with lock catch sleeves, and an upper die assembly is mounted among the tops of the supporting rods; a filling assembly is installed on the lower die assembly, the filling assembly can implement a filling function on the die, a recycling assembly is installed on the filling assembly, the recycling assembly can execute a recycling function on crushed aggregates left on the surface of the lower die assembly, and two fixing plates are fixedly connected to the rear end of the upper die assembly. Through the dual effects of brush cleaning and negative pressure adsorption, residual crushed materials on the surface of the lower die plate can be comprehensively collected, conveyed to the material return groove of the hopper through the material return pipe and re-fed to be circularly used for the follow-up filling procedure, the utilization rate of metal powder is greatly increased, the machine does not need to be stopped for cleaning the residual materials, production continuity is guaranteed, and efficiency is improved.

The invention discloses a foamed sponge cutting device and a cutting method thereof, the foamed sponge cutting device is used in the cutting method, and the foamed sponge cutting device comprises a conveying unit, a positioning unit, a control unit and a cutting unit. According to the scheme, the cutting method is mainly achieved through the foaming sponge cutting device composed of the conveying unit, the positioning unit, the control unit and the cutting unit, the sponge is cut into a square shape on the conveying unit and then placed on the operation table, and the sponge is centered and positioned through the positioning unit; the positioning unit is used for positioning the sponge, the control unit and the cutting unit are used for completing burr and slope cutting, scrap collection and automatic discharging, the whole process is completed through mechanical cooperation of the positioning unit, the control unit and the cutting unit, burrs and slopes of the cut sponge can be treated conveniently, errors and labor intensity caused by manual operation are prevented, and manpower and time cost waste is reduced.

The invention relates to the technical field of automobile part machining, and discloses a sheet punching device for automobile part machining, which comprises a punching table, and further comprises a recycling hopper fixedly connected to the bottom of the punching table, and a rectangular hole is formed in the punching table and used for recycling punching leftover materials into the recycling hopper; the support is fixedly connected to the bottom of the recycling hopper and used for supporting the recycling hopper and the punching table; and the moving mechanism is arranged above the punching table and is used for moving a welding gun head mounted on the moving mechanism. The lower adjusting rod driven by the two-way threaded rod and the upper adjusting rod pre-tightened by the spring form'up-down elastic clamping ', and can automatically adapt to a thin plate; in the clamping process, the first spray hole and the second spray hole spray inert gas synchronously, local protective atmosphere is formed on the upper surface and the lower surface of the notch, oxidation ablation is reduced, the hole edge heat affected zone is reduced, and the precision requirement of the high-strength welding hole of the automobile is met.

The invention discloses a labor protection coating glove rubber surface wear resistance testing device, and relates to the technical field of glove testing, the labor protection coating glove rubber surface wear resistance testing device comprises a workbench and a friction roller, the distance between a glove and the friction roller is adjusted through a guide rail moving table, and a hand mold seat simulates the radian of a human hand to ensure fitting; friction rollers of different textures and surface structures can be rapidly replaced without tools, the complex abrasion working condition that gloves make contact with multi-element substances in the industries of buildings, machinery, chemical engineering and the like can be simulated, a control panel can adjust the rotating speed of a motor and the contact force between the gloves and the friction rollers, and multidirectional testing is carried out from the dimensions of friction frequency, pressure environment and the like. Extreme and conventional working conditions are covered, scraps generated by testing are collected by a scrap box, accurate adjustment of a guide rail moving table and design of a hand mold base improve the testing consistency, and the device is suitable for wear resistance testing of various labor protection coating gloves, meets multi-industry standards and provides reliable data for glove research and development and quality control.

The invention relates to the technical field of cable carbon footprints, and discloses a cable full life cycle carbon footprint determination method. The method comprises the following steps: acquiring carbon emission data of all stages of raw material acquisition, production and manufacturing, transportation and distribution, installation and use and scrap recovery in the whole life cycle of the cable through a preset data acquisition system; establishing a multi-dimensional characterization model of the carbon footprint features by using the acquired data; performing life cycle stage adaptability evaluation on the model to generate a carbon footprint contribution degree distribution map; the semantic content of the cable product specification parameters is analyzed, the environmental influence weight corresponding to semantics is deduced, and carbon footprint calculation constraint conditions are formed in combination with the carbon footprint contribution degree distribution map; and generating a carbon footprint determination scheme by using an optimization algorithm according to the constraint condition, and outputting the carbon footprint according to the scheme. The method can systematically integrate cable full life cycle carbon emission related information, and provides a clear path for carbon footprint determination.

The invention relates to the technical field of automation control, in particular to a self-adaptive shaft power intelligent optimization method and system based on gantry machining, and the method comprises the following steps: collecting rotating speed, cutting force and temperature data, calculating initial machining parameters according to the rotating speed, the cutting force and the temperature data, and executing parameter adjustment based on the initial machining parameters. And dynamically optimizing the power output of the main shaft to obtain adjusted power output. The rotating speed, cutting force and temperature data are collected and analyzed in real time, machining parameters are allowed to be adjusted to adapt to the actual machining environment, machining errors and machine tool abrasion caused by parameter mismatching are reduced, the production efficiency and the product quality are improved, power output of the main shaft is dynamically optimized, it is ensured that energy consumption in the machining process is minimized, and the machining efficiency is improved. And meanwhile, the optimal machining speed and precision are kept, a real-time feedback mechanism timely finds and corrects the problem of deviating from the preset machining standard, the rejection rate of finished products is reduced, and the reliability of the machine tool is improved.

The invention discloses a crosslinked polyethylene low-smoke halogen-free flame-retardant power cable which comprises the following hierarchical structures: a conductor layer; an insulating layer; a shielding layer; the shielding layer takes polyethylene as a matrix and comprises the following components in parts by weight: 70-78 parts of matrix, 20-25 parts of carbon black and 2-5 parts of nano montmorillonite modified lignin, the thickness of the shielding layer is 0.8-1.2 mm, the shielding layer and the insulating layer are molded through a co-extrusion process, and the interface gap is less than or equal to 0.1 mm. The nano montmorillonite modified lignin is adopted as a core flame retardant, the addition amount is reduced by 10%-15% compared with that of a traditional halogen-free flame retardant, by taking a 120 mm civil cable as an example, 18 parts of modified lignin replace 25 parts of a traditional flame retardant with the same flame retardant effect, the raw material cost is reduced by 8%-12%, lignin is derived from agricultural and forestry wastes, dependence on a petroleum-based material is reduced, and the environment-friendly flame-retardant cable material is suitable for industrial production. The gradient cooling process shortens the cooling time by 20%-30% compared with the traditional single-section cold water cooling process, and meanwhile, the pre-crosslinking process reduces the subsequent forming internal stress and reduces the rejection rate.

The invention relates to the technical field of high polymer material modification and processing, in particular to a modification formula and production process of an impact-resistant and high-heat-resistant MPP cable protection tube, and the formula comprises 60-80 parts of a polypropylene base material, 8-15 parts of a nano-composite reinforcing agent, 5-12 parts of a heat-resistant modifier, 3-8 parts of an impact-resistant modifier and the like. The production process comprises the steps of nanofiller surface functionalization, multi-stage melt blending, dynamic vulcanization forming, pulse type vacuum setting and online detection, and the prepared pipe is excellent in impact resistance and heat resistance and high in size precision. The pipe provided by the invention has the advantages of zero fracture in drop hammer impact, vicat softening temperature of 152 DEG C, ring stiffness of 60.16 kN / m < 2 > and small dimensional deviation; the process improves filler dispersity, has low rejection rate and energy consumption, has comprehensive performance superior to that of traditional products, and is suitable for complex working conditions.