342results about How to "Reduce voids" patented technology

The invention provides a negative pole piece and a preparation method thereof, a sodium ion battery and electric equipment, and relates to the technical field of sodium ion batteries. The negative pole piece comprises a current collector, a first coating and a second coating, the first coating is arranged between the current collector and the second coating; the raw materials of the first coating comprise hard carbon, first soft carbon, a first conductive agent, a first dispersant and a first binder; the second coating is prepared from the following raw materials: second soft carbon, a second conductive agent, a second dispersing agent and a second binding agent. The negative pole piece has relatively high flexibility, compaction density, electronic conductivity, cycle performance and rate capability, and can also reduce the risk of sodium precipitation and the probability of powder falling.

The invention discloses a multilayer circuit board preparation method and system based on via hole filling optimization and a multilayer circuit board, and relates to the technical field of circuit board preparation, and the method comprises the steps: obtaining the size of a via hole, calculating the depth-to-width ratio, constructing a viscosity gradient function, taking a via hole filling quality evaluation index as a first optimization target, and solving an optimal ratio; designing a vacuum degree control strategy; the current capillary pressure is obtained, differential pressure driving force is calculated according to the current through hole gas pressure intensity, the time needed for filling and the preset ultrasonic vibration duration are calculated in combination with the through hole diameter, the hole depth and the viscosity gradient function, and ultrasonic auxiliary filling is carried out while through hole filling is carried out; filling the via hole, and controlling the vacuum degree according to the vacuum degree adjusting curve; and the real-time filling rate and the cavity volume are obtained, a second target function is constructed with the difference between the minimum target filling rate and the actual filling rate and the filling cost as a second optimization target, and the optimal filling step number and the optimal single injection material volume are solved.

The present invention discloses a horizontal bag-feeding packaging machine, including a bag-taking device, a bag-sucking device, a loading device, a sealing device and a bag-feeding device throughout the entire packaging machine. The bag-taking device includes a bag-placing mechanism and a bag-grabbing mechanism, wherein the bag-placing mechanism is used to limit the placement of the packaging bag, and the bag-grabbing mechanism is used to grab the packaging bag and move it to a specified position; the bag-sucking device is used to separate the bag opening of the packaging bag, the loading device is used to load the packaging bag, and the sealing device is used to seal the bag opening. The present invention improves the efficiency of separating the bag opening of the packaging bag, facilitates the subsequent bagging, and improves the applicability of the bag-sucking device to different types of packaging bags; the loading device of the present invention has the advantages of simple structure, flexible operation, accurate bagging of materials, and makes subsequent packaging bags easier to seal; the bag-feeding device of the present application adopts a method of clamping and fixing the packaging bag for conveying instead of the cam conveying method of the horizontal bag-feeding packaging machine, and the equipment structure is relatively simple, low cost, stable operation, and convenient debugging and maintenance.

The invention belongs to the technical field of heat-conducting silica gel, and relates to high-temperature-resistant heat-conducting silica gel as well as a preparation method and application thereof. The invention provides heat-conducting silica gel, which is prepared from the following raw materials in parts by mass: 10 to 20 parts of silicon rubber matrix, 100 parts of modified heat-conducting filler and 5 to 12 parts of auxiliaries, the preparation method of the modified heat-conducting filler comprises the following steps: adding glutaric anhydride and carnosic acid into a solvent to obtain a modifier, then adding the heat-conducting filler, heating to 60-80 DEG C under the protection of nitrogen, carrying out closed heat preservation for 5-10 hours, and cooling to room temperature to obtain the modified heat-conducting filler. According to the heat-conducting silica gel provided by the invention, the heat-conducting filler is subjected to surface treatment, so that gaps existing at the interface of particles and a polymer are reduced, the interface thermal resistance of the heat-conducting silica gel is reduced, and the high-temperature resistance of the heat-conducting silica gel is improved.

The invention discloses a process for repairing ceramic glaze defects, which comprises the following steps of: A, polishing the defect part of ceramic into a U-shaped groove, and wetting the U-shaped groove to obtain pretreated ceramic; b, the U-shaped groove of the pretreated ceramic is filled with the repairing base material, and the repairing base material is compacted to obtain a repairing bottom layer; c, the repairing bottom layer is sequentially dried and polished, so that the surface of the repairing bottom layer is flush with the surface of the pretreated ceramic; d, the surface of the repairing bottom layer is filled with repairing cover glaze and compacted, and a repairing surface layer is formed; and E, the pretreated ceramic with the repairing surface layer is placed in a shuttle chamber kiln, and repairing is completed. According to the repair process for the ceramic glaze defects, the repair base material formula and the repair process are optimized, so that the firing shrinkage rate and the cracking possibility are reduced, the repair strength is improved, and on the premise of ensuring the repair effect, the repairable defect range can be widened; and the repaired ceramic glaze defect part can be flat and smooth, and the aesthetic property is ensured.

The invention relates to a die-casting forming method for improving the density of a casting, belongs to the technical field of aluminum alloy casting, and solves the problems of high porosity, low density and low mechanical property of an aluminum alloy thick-wall die casting in the prior art. A die-casting forming method for improving the density of a casting comprises the following steps that firstly, an aluminum alloy metal raw material is added into a preheated smelting furnace, melting and heating are conducted, aluminum alloy liquid is obtained, and a refining modifier is added and stirred; 2, degassing treatment is conducted on the aluminum alloy liquid, and surface scum is removed after standing; 3, a die-casting die is preheated, and a layer of release agent is sprayed on the die-casting die; 4, the molten aluminum alloy is cooled and poured into a pouring gate of the die-casting die, the thickness of the pouring gate is 8-12 mm, and the molten aluminum alloy is slowly injected into a cavity of the die-casting die through an injection punch; and 5, the aluminum alloy die casting is taken out, the die casting is placed in a water tank to be quenched, and the high-density die casting is obtained. And preparation of the high-density aluminum alloy thick-wall die casting is achieved.

The present invention relates to the technical field of concrete pouring, and in particular, to a pouring device for green building construction and a pouring method thereof, comprising a pouring tank for containing concrete aggregates and a discharging assembly arranged inside the pouring tank for extruding concrete, wherein the pouring tank is composed of a tank body, an upper pipe, a corrugated pipe and a lower pipe connected to each other, an auger is arranged in the upper pipe and the two are of matching sizes, and a vibrating assembly for reducing the gaps in the poured concrete is arranged in the lower pipe, and the vibrating assembly comprises a fixed cylinder, a shield structure and a vibrating structure, and the vibrating structure comprises a conduction cylinder, a vibrating plate and a transmission rod. By arranging the vibrating assembly, the device can vibrate the poured concrete while pouring the concrete, so as to reduce the gaps between the poured concrete and improve the pouring quality; at the same time, by arranging the shield structure, the concrete pouring speed can be reduced as the pouring height increases, so as to avoid excessive concrete pouring overflowing the mold when approaching the mold opening and causing waste.

The utility model discloses lens film pasting equipment which comprises a machine frame, a film tearing, feeding and discharging device and a forming and pasting device are arranged on the machine frame, the lens film pasting equipment further comprises a press-fit feeding and discharging device, and a material transferring assembly is arranged at the output position of the film tearing, feeding and discharging device. A preforming device is further arranged in the path where the material transferring assembly transfers the optical film to the press-fit feeding and discharging device, a lens feeding carrying table and a finished product discharging carrying table are further arranged on the rack, and the forming and attaching device comprises a forming and attaching heating assembly for heating the optical film. According to the utility model, before the lens and the optical film are laminated, the optical film is heated through the molding lamination heating assembly, so that the optical film has certain flexibility, and the optical film and the lens body can be laminated more tightly during vacuum lamination, thereby being capable of adapting to a curved lens with a larger curvature, reducing wrinkles and improving the production efficiency. And moreover, the generation of bubbles and hollow areas can be effectively reduced by laminating in a vacuum environment.

The utility model discloses a dry hanging stone installation structure for decoration engineering, which comprises an L-shaped wall surface fixing frame, a stone upper frame, a stone lower frame and a dry hanging stone plate, a transverse angle steel beam is fixedly installed on the L-shaped wall surface fixing frame, a limit adjusting hole piece is fixedly installed on one side of the stone upper frame, and the limit adjusting hole piece is fixedly installed on the other side of the stone lower frame. The limiting adjusting hole frame is composed of a hole frame body and a hole frame fixing protruding part integrally connected to one side of the hole frame body, the hole frame fixing protruding part and the transverse angle steel beam are fixedly installed together, an adjusting limiting strip hole is formed in the hole frame body, and a lower frame limiting pin frame is fixedly installed on one side of the stone lower frame. The dry-hanging stone plate has the advantages that bolts at the top of the dry-hanging stone plate need to be fastened during hanging and fixing, the bottom of the dry-hanging stone plate is fixed through the limiting inserting mechanism, a gap between a hanging wall and stone is reduced, the length of the hanging frame is shortened, the stability of the hanging frame is improved, fastening and mounting steps during hanging are reduced, operation is easy, and efficiency is high.

The invention provides a back contact photovoltaic cell piece capable of preventing stacking scratch in a high-temperature passivation process. The back contact photovoltaic cell piece comprises a back contact photovoltaic cell piece body and a plurality of soft isolation protrusions located on the light receiving face of the back contact photovoltaic cell piece body. The soft isolation protrusions are used for supporting photovoltaic cells to be mutually isolated when the photovoltaic cells are stacked layer by layer, and the soft isolation protrusions are resistant to high temperature of 300 DEG C and do not become sticky or yellow within 3 hours. According to the invention, the soft isolation projections are arranged on the light receiving surface of the back contact photovoltaic cell sheet body to support mutual isolation of the photovoltaic cell sheets when the photovoltaic cell sheets are stacked layer by layer, so that the photovoltaic cell sheets can be protected from being scratched in the stacking and moving process; the flexible isolation protrusions are arranged on the back contact photovoltaic cell piece, the flexible isolation protrusions can be prevented from scratching the surface of the photovoltaic cell piece due to the specific flexibility of the flexible isolation protrusions, meanwhile, the flexible isolation protrusions can bear the passivation temperature of 300 DEG C or above and do not crack or yellow or adhere to the cell piece, and therefore it can be ensured that the back contact photovoltaic cell piece is subjected to high-temperature passivation in a multi-layer stacking mode, and the passivation efficiency is improved.

The utility model discloses an anti-deviation winding machine, which relates to the technical field of winding machines and comprises a bottom plate, a fixing frame in threaded connection with the upper end of the bottom plate, a driving motor mounted at one end of the fixing frame, an operating component mounted at one end, close to the driving motor, of the fixing frame, a winding drum arranged inside the fixing frame, and the other end of the winding drum is rotatably connected with one end inside the fixing frame. The outer side of the winding drum is symmetrically sleeved with moving blocks, the opposite ends of the moving blocks are fixedly connected with limiting plates, fixing assemblies are installed at the upper ends of the moving blocks, a moving frame is slidably connected into the fixing frame, an extrusion assembly is installed at the upper end of the moving frame, and an extrusion roller is rotationally connected into the moving frame. By the adoption of the structure, adjustment can be carried out according to the actual width of materials, the winding device can adapt to the materials of different specifications and sizes, diversified production requirements are met, the problems of untight winding, deviation and the like caused by width mismatching are solved, the overall quality of products can be improved, and the production efficiency is improved. And inferior-quality products and waste products are reduced.

The invention discloses a liquid nitrogen freezing and carbon dioxide blasting combined anti-reflection device and method. The device comprises a freezing pipe and an anti-reflection assembly. The anti-reflection assembly is mounted on the inner side of the freezing pipe; the anti-reflection assembly comprises a flexible air bag, an excitation device and a sealing positioning ring; the sealing positioning ring sleeves the outer side of the flexible air bag, and the flexible air bag is provided with an extension section; an end socket is mounted outside the sealing positioning ring in a sleeving manner, and the sealing positioning ring fixes the extension section on the end socket; the exterior of the end head is fixedly connected with the freezing pipe; the excitation device is arranged in the flexible air bag; and a firing line is mounted on the excitation device. The mechanical property of the coal body is optimized and improved through liquid nitrogen freezing, so that the mechanical strength of the coal body is enhanced, the brittleness is greatly improved, and then CO2 phase change blasting is performed to crack the coal seam; for a low-permeability soft coal seam, hole collapse caused by soft coal in single blasting is avoided, more cracks can be generated in the coal seam after CO2 blasting, the fracturing and permeability increasing effects are greatly improved, and a good promoting effect is achieved on gas extraction.

The invention discloses a rock-soil seepage experiment device, and relates to the technical field of rock-soil seepage experiments, the rock-soil seepage experiment device comprises a test board, the test board is provided with a material storage box, a pressing plate is arranged above the material storage box, one side of the pressing plate is provided with a compaction assembly, the surface of the test board is provided with a transverse groove and a vertical groove, and the vertical groove is communicated with the transverse groove. According to the rock-soil seepage experiment device, the adjusting motor drives the threaded rod and the compaction plate to move up and down, the initial height of the compaction plate and the storage box can be accurately adjusted, so that personalized compaction treatment can be performed on rock-soil of different types and humidity, the adjustability ensures that the compaction strength is not excessive or insufficient, and the compaction efficiency is improved. The flexibility and the accuracy of the experiment are improved; the compaction treatment ensures that the density and the compactness of the rock soil to be measured in the experiment process are kept consistent, and experiment errors caused by rock soil looseness or uneven density are remarkably reduced, so that the experiment can more accurately simulate actual geological conditions, and the reliability and the accuracy of experiment data are improved.

The invention relates to the technical field of ceramic production, in particular to an automatic powder burying device for special ceramic production, which comprises a stamping table, an automatic feeding device and a powder burying table, the powder burying table is arranged on the stamping table, the automatic powder burying device further comprises a plurality of vertical knocking blocks, and the vertical knocking blocks are positioned on the powder burying table; the horizontal knocking blocks are located on the powder burying table, the multiple horizontal knocking blocks are divided into two groups and located on the two sides of the powder burying table respectively, and when the automatic powder burying device for special ceramic production is used, different from the prior art, gaps between powder particles are effectively compressed through knocking, and therefore the powder particles are prevented from being damaged; compared with the prior art, the powder burying table has the advantages that the compactness of the powder is improved, the higher compactness is favorable for reducing pores and defects in the product and improving the mechanical strength of the product, and meanwhile, the knocking effect can promote powder particles to be redistributed in the powder burying table, so that the local gap or accumulation phenomenon is avoided, and the uniform powder distribution is favorable for obtaining more consistent product quality.

The invention discloses a rapid cooling post-welding reinforcing device for V-method casting, which comprises a base, a support plate, a sand mold bearing assembly, a forming assembly and a vibrator, the support plate is mounted at the top end of the base, the vibrator is mounted on the outer surface of the sand mold bearing assembly, the sand mold bearing assembly comprises a sand box mounted at the top end of the support plate, and the sand box is filled with fine sand; the device comprises a sand box, fine sand is arranged in the sand box, a plurality of reinforcing plates are uniformly placed in the fine sand in the sand box, a plurality of blanking holes are formed in the outer surfaces of the reinforcing plates, the reinforcing plates are laminated, and a connecting rope is mounted between every two reinforcing plates. The reinforcing plates are arranged in the sand box, so that the reinforcing plates can fill the sand layer in a layered manner, the sand layer can be effectively supported and fixed, and the sand layer is prevented from being deformed or collapsed due to impact and pressure of molten metal in the pouring process.

The invention relates to the technical field of cable trench soil construction equipment, in particular to tamping equipment for cable trench backfill, which comprises a machine body and telescopic drivers symmetrically arranged on two sides of the machine body, the other ends of the telescopic drivers are fixedly connected with a soil shoveling assembly, and the machine body is sequentially provided with a crushing assembly, a leveling assembly and a soil ramming assembly from front to back. One end of the telescopic transmission machine is movably connected with the machine body; the soil shoveling assembly comprises a rotatably arranged soil feeding mechanism, and the telescopic driver adjusts the distance between the soil shoveling assembly and the machine body through the action of a lead screw nut mechanism; the crushing assembly comprises two groups of parallel soil crushing pieces, the two groups of soil crushing pieces synchronously rotate in opposite directions, the soil ramming assembly comprises a rotating piece and four soil ramming units arranged in the circumferential direction of the rotating piece at intervals, and the four soil ramming units are matched with the rotating piece to sequentially reciprocate; according to the invention, backfilling and tamping can be synchronously carried out, the cable trench backfilling construction efficiency is improved, the backfilling is compact, and the labor intensity of workers is reduced.

The invention discloses a preparation method of a high-strength ceramic fiber, and belongs to the technical field of ceramic fibers.The preparation method comprises the following steps that polycarbosilane is added into anhydrous xylene and dissolved at the temperature of 160-200 DEG C, then a reinforcing agent is added, a reaction is conducted for 8-24 h at the temperature of 160-200 DEG C, cooling, atmospheric distillation and reduced pressure distillation are conducted, and modified polycarbosilane is obtained; placing the modified polycarbosilane in a melt spinning cylinder, slowly heating the modified polycarbosilane to a molten state in an inert atmosphere, and carrying out defoaming treatment; then pressurizing to 3MPa, and enabling the melt to flow out through a filter screen and a spinneret plate to obtain a silicon carbide fiber bundle; and putting the silicon carbide fiber bundles into a sintering furnace, introducing nitrogen, heating, and cooling along with the furnace to obtain the high-strength ceramic fiber. The ceramic fiber prepared by the invention has excellent self-repairing performance and mechanical property, and is suitable for numerous application scenes.

The invention discloses a bathroom cabinet with a mirror surface cleaning function, and relates to the technical field of bathroom cabinets. The wall-mounted mirror cabinet comprises a ground wall-mounted cabinet body and a wall-mounted mirror cabinet body, the wall-mounted mirror cabinet body is arranged at the top of the ground wall-mounted cabinet body, a mirror mounting groove is formed in one side of the wall-mounted mirror cabinet body, a dressing mirror is fixedly mounted in the mirror mounting groove, and a U-shaped pipe is fixedly mounted at the top of the ground wall-mounted cabinet body; a shaping pipe is fixedly mounted in the mirror mounting groove, and the U-shaped pipe is fixedly mounted in the shaping pipe. By arranging the cotton towel replacing assembly, used wiping cotton slivers can be loosened, then the bottom end of a wiping cotton towel roll is clamped through an outer fixed clamping plate and an inner movable clamping plate, the bottom end of the wiping cotton towel roll is cut into new wiping cotton slivers through a cotton towel cutter, and automatic replacement of the wiping cotton slivers is completed; and a new wiping cotton strip is adopted to wipe the mirror surface every time, so that the cleanliness of the wiping piece is kept, and the mirror surface cleaning capability of the bathroom cabinet is improved.

The invention provides a square fishing line knitting machine and a knitting method thereof, and relates to the technical field of knitting machines. The device is provided with a discharging platform and a supporting frame, a take-up mechanism, a tensioning mechanism, a wire uniformizing mechanism and a recycling mechanism are installed on the supporting frame, four discharging rotating discs are arranged on the discharging platform, a plurality of sliding seat clamping grooves are evenly formed in the outer ring sides of the discharging rotating discs, spindles are installed on the sliding seat clamping grooves, and multi-ring weaving track grooves are formed below the discharging rotating discs. The multi-ring knitting track groove comprises four circular ring grooves, the four circular ring grooves of the multi-ring knitting track groove are sequentially connected in a tangent mode, every two adjacent circular ring grooves are communicated at the tangent point, and the spindles installed on the discharging rotary disc sequentially slide along the multi-ring knitting track groove. A special square weaving mode is creatively adopted, the woven structure formed after weaving is square, the inherent idea that the woven structure of the fishing line is round is broken through, gaps in the middle of the woven fishing line are reduced, the woven fishing line is more compact, and the abrasion resistance and the tensile strength of the fishing line are improved.

The invention belongs to the technical field of tunnel secondary lining construction, and discloses a concrete vault secondary lining pouring quality monitoring device which comprises a tunnel cave wall, geotechnical cloth is arranged on the inner wall of the tunnel cave wall, a waterproof plate is arranged in the geotechnical cloth, a pouring area is arranged in the waterproof plate, and a trolley is arranged in the pouring area. A plurality of monitoring lines are evenly arranged between the geotechnical cloth and the waterproof plate in the length direction of the tunnel, a plurality of pressure elements and ultrasonic detection devices are further arranged between the geotechnical cloth and the waterproof plate, and the pressure elements and the ultrasonic detection devices are connected to a display terminal through data extension lines. An electric signal is triggered through the extrusion effect of concrete pouring on the pressure sensor, meanwhile, according to monitoring of the ultrasonic detection device, active control over the concrete vault secondary lining pouring quality is achieved, the concrete void problem is converted into beforehand control from post remediation, the concrete pouring quality is greatly improved, and the concrete void problem is reduced.

The invention relates to a nickel-based single-crystal high-temperature alloy and a preparation method thereof, and relates to the technical field of single-crystal high-temperature alloys. According to the main technical scheme, the nickel-based single crystal high-temperature alloy is prepared from the following chemical components in percentage by mass: 6 to 8 weight percent of Cr, 7 to 9 weight percent of Co, 1 to 3 weight percent of Mo, 7 to 9 weight percent of W, 5 to 7 weight percent of Ta, 5 to 7 weight percent of Al, 0.5 to 2 weight percent of Ti, 0.5 to 1 weight percent of Nb, 0.008 to 0.013 weight percent of N and the balance of Ni. After the Nb and the trace element N are introduced, the void ratio in the as-cast alloy is reduced by 35%, the void ratio of the heat-treated alloy is reduced to 28% after treatment of a set heat treatment process, and the high-temperature strength and the endurance life of the low-cost second-generation single-crystal high-temperature alloy are further improved. The nickel-based single-crystal high-temperature alloy is particularly suitable for manufacturing hot-end high-temperature components with long service life and high reliability in the fields of aviation, aerospace, energy and the like.

The invention belongs to the field of medical rubber materials, and particularly relates to a vulcanization preparation process of a medical puncture-resistant rubber gasket. A vulcanization preparation process of a medical puncture-resistant rubber gasket comprises the following steps: S1, raw rubber raw material preparation: crushing and mixing raw rubber raw materials to be vulcanized into raw rubber powder, removing impurities, and sieving; the raw rubber raw materials comprise halogenated butyl rubber, polyisoprene rubber and epichlorohydrin rubber; s2, preparing a rubber compound; the preparation method comprises the following steps: preheating an internal mixer to 80-100 DEG C, adding 80-90 parts by weight of raw rubber powder into the internal mixer, and refining at 115-125 DEG C for 5-9 minutes; adding 12-22 parts by weight of a modified composite filler, 2-6 parts by weight of zinc oxide, 1-3 parts by weight of stearic acid, 3-8 parts by weight of a crosslinking auxiliary agent and 0.5-1.2 parts by weight of an anti-aging agent, and mixing for 18-22 min; s3, calendaring and sheet discharging: calendaring and molding the rubber compound obtained in the step (2) to obtain a rubber compound sheet; s4, prevulcanization: putting the rubber compound sheet calendered in the step (3) into a mold cavity of a press vulcanizer, and carrying out under-vulcanization production to obtain a preformed sheet; the preformed rubber sheet in the step (4) and an organic solvent are subjected to cleaning treatment and drying and then put into a vulcanization mold to be subjected to vulcanization forming, the rubber gasket is obtained, the vulcanization temperature ranges from 140 DEG C to 150 DEG C, and the vulcanization time ranges from 3 min to 7 min. In order to solve the problem that the use performance of a medical rubber gasket is affected due to the fact that the medical rubber gasket is needled to fall scraps and is poor in rebound resilience, the invention provides the vulcanization preparation process of the medical needling-resistant rubber gasket.

The invention discloses a high-transparency and low-haze PC fiber-added product and a preparation method thereof. Firstly, a semitransparent PCGF product is obtained by optimizing glass fibers, the infiltration effect of the glass fibers and PC resin is improved through polyacrylic resin (infiltration improver), the transmittance of the product is finally further improved, the haze is reduced, and the obtained product has the advantages of being high in transmittance, low in haze, high in modulus and the like and is widely applied to the field of electronic and electric appliances such as OA equipment.

The invention belongs to the technical field of path planning and robot motion planning, and particularly relates to a multi-strategy fusion improved RRT * sampling planning method and device and a storage medium, and the method comprises the steps: constructing a dual-search tree through a starting point and a target point in a three-dimensional working space, and selecting a to-be-expanded search tree through a random mode; halton-Bridge mixed sampling is adopted to generate sampling points, so that the global coverage uniformity is improved, and the narrow channel sampling capability is enhanced; calculating the dynamic step length of the exponential decay based on the local obstacle proportion; adopting a hierarchical guidance expansion strategy, preferentially expanding towards a target, introducing an improved artificial potential field to guide expansion when the expansion fails, and taking the bottom with random expansion; performing RRT * neighborhood father node reselection and reconnection optimization on the new node; greedy pruning, self-adaptive interpolation and cubic B-spline smoothing are carried out on a path after the double trees are connected, and an executable smoothing track is output; according to the scheme, planning efficiency, success rate and path quality are improved.

The invention discloses a leveling device for paving a pervious concrete pavement and a leveling method thereof, and relates to the technical field of pavement paving, the leveling device comprises a vehicle body, a box body is fixedly mounted at the top of the vehicle body, a charging box is fixedly mounted at the upper end of an inner cavity of the box body, and the bottom of the charging box is connected with a leveling assembly through a pipeline; and the leveling assembly is used for paving pervious concrete on the earth road. According to the leveling device for paving the pervious concrete pavement and the leveling method of the leveling device, the size of the discharging groove in the collecting hopper can be automatically adjusted through the arranged adjusting part according to the actual condition of the pavement, so that the discharging amount of concrete is accurately controlled, and the discharging groove is enlarged at the sunken part of the pavement so as to increase the discharging amount of the concrete and fill the sunken part; at the raised part of the road surface, the discharge chute is reduced to reduce the discharge amount of concrete and avoid excessive accumulation, and the intelligent adjustment ensures the flatness of concrete laying and improves the construction quality.

The invention provides a management system of an intelligent stereoscopic warehouse. The internal space of an idle tray in a target stereoscopic warehouse is divided by using a division module; scanning the bar code of the to-be-warehoused material by using a scanning module to obtain data information; a screening module is used for screening goods allocation grids meeting requirements in goods allocation grid division results according to the data information; obtaining the position information of the trays to which the goods location grids meeting the requirements belong in the target stereoscopic warehouse through a calculation module, and calculating the distance value from the current access point to the trays to which the goods location grids meeting the requirements belong; a selection module is used for selecting the goods allocation lattice with the minimum distance value as the optimal racking position; the warehousing module guides the to-be-warehoused materials to be placed at the optimal racking position through laser, a database is updated, a warehousing list is generated, and material warehousing is completed; the delivery module delivers the trays according to the material taking order, takes the materials and generates a delivery order, so that material delivery is completed; the problems that the space utilization rate of trays in a three-dimensional warehouse is low, and the types of stored goods are few are solved.

The invention provides a preparation method of a PEM water electrolysis anode diffusion layer, which relates to the field of PEM water electrolysis. Titanium nanotubes with different pore sizes are selected, and the large-pore titanium nanotubes are used to transmit liquids, and the small-pore titanium nanotubes are used to transmit gases, so that the gas and liquid transmission in the PEM water electrolysis process is highly ordered, and good liquid and gas management functions are achieved; the surfaces of the titanium nanotubes and titanium powders are attached with noble metal ions, and then oxygen is introduced for calcination, so that the noble metal ions form an oxide grid structure and are attached and embedded in the surfaces of the titanium nanotubes and titanium powders, which has higher firmness, protects the titanium material from being oxidized in the water electrolysis process, and improves the conductivity and catalytic ability of the anode diffusion layer.

The utility model relates to cigarette production auxiliary equipment technical field discloses a kind of tobacco material plastic outer package collecting devices, including collecting frame, blocking mechanism, adjusting mechanism and lifting mechanism, the collecting frame upper portion is provided with blocking area and non-blocking area, the blocking area is located directly above collecting frame, the blocking mechanism is set in the collecting frame upper portion, the adjusting mechanism is connected with blocking mechanism transmission, the adjusting mechanism is used to make blocking mechanism switch position between blocking area and non-blocking area, the lifting mechanism is set in the collecting frame lower portion, the lifting mechanism is used to lift collecting frame, when the blocking mechanism is located in blocking area, and the lifting mechanism lifts collecting frame, the blocking mechanism enters the extrusion plastic outer package in collecting frame in collecting frame. The utility model can solve the problem that the gap between plastic outer package in collecting frame is larger in prior art, resulting in the problem of reduced storage capacity of collecting frame.

The invention discloses a preparation method of a standardized sheet for a thermoelectric test of minerals or mineral materials and alloys, belongs to the technical field of mineralogy, material science and prospecting prediction, and establishes a preparation process of a universal mineral or mineral material and alloy thermoelectric sheet. Covering all semiconductor mineral types or mineral material types such as pyrite, magnetite, graphite and sintered ore; accurate thickness control is achieved through a double-face polishing-loading sheet supporting structure, in-situ testing of the thermoelectricity of minerals or mineral materials and alloys is achieved, and the testing precision is improved; by adopting a conductive adhesive-copper plate composite structure, the interface resistance is reduced, the supporting strength is met, and the requirement of eliminating detection interference is met; residual colloid is thoroughly removed through ultrasonic cleaning, and the insulation effect is avoided; according to the standardized sheet, the hollow aminated phenolic resin nanosphere is used as a conductive substrate and is used for bonding a sample and a copper plate, the contact resistance between the sample and an electrode can be greatly reduced, and the accuracy of test data is improved.

The improved gas turbine nonmetal expansion joint heat insulation device comprises a first frame and a second frame, the first frame and the second frame are both connected with guard plates, the guard plates are annularly arranged, the two guard plates are arranged at intervals in the width direction of the guard plates, the first frame and the second frame are spaced to form a cavity, and a heat preservation layer is arranged in the cavity; a cushion layer is connected between the two protective plates and is arranged in an annular shape, an inner ring of the cushion layer is in an arc shape, the convex arc face of the inner ring of the cushion layer faces the heat preservation layer, and an outer ring of the cushion layer makes contact with the heat preservation layer. When the expansion joint is heated to expand, the first frame and the second frame are heated to expand, the first frame and the second frame are far away from each other, the two protection plates are far away from each other, and meanwhile the cushion layer is stretched and deformed, so that the gap between the two protection plates is reduced, and the heat preservation layer is prevented from being scoured and emptied as much as possible.