18results about How to "Solve the collapse" patented technology

The present invention relates to the field of lithium battery processing technology, and in particular to a cell flipping mechanism for lithium battery production, comprising a flipping mechanism and a pushing mechanism for pushing the cell arranged on the side of the flipping mechanism, the flipping mechanism comprising a rebound roller assembly for clamping the cell, a pressing cylinder assembly for driving the rebound roller assembly to clamp the cell, and a flipping drive cylinder for driving the rebound roller assembly to flip, and the pushing mechanism comprising a first-level pushing cylinder, a second-level pushing cylinder and a pushing cylinder. The present invention is provided with a flipping mechanism, which solves the problem of the collapse of the cell tab due to gravity in the first circle of the cell diaphragm through a 180° flipping mechanism, thereby improving the cell yield; at the same time, the flipping platform adopts an automatic rebound low-resistance roller structure design, which prevents friction and scratches on the cell surface when the cell passes through the flipping platform.

The invention is suitable for the technical field of composite materials, and provides an Al / SiC composite material with metal continuously distributed, the metal Al phase is continuously distributed, and SiC-rich ceramic columns are separately distributed; the SiC-rich ceramic stand column is composed of A1 and SiC particles together, and a network structure with soft phases surrounding hard phases and interpenetrating soft phases is formed. The plane figure of the SiC-rich ceramic upright post is one of a circle, a rectangle, a triangle, a star, a honeycomb, a concave honeycomb, a broken line shape and a wave shape; the volume fraction of ceramic in the SiC-rich ceramic stand column is 25-60 vol.%. The invention further provides a preparation method of the Al / SiC composite material with the metal continuously distributed. According to the preparation method, digital light treatment and gel casting are combined, a ceramic blank reverse mold is constructed by using calcium carbonate, the design is flexible and changeable, and the metal ceramic composite material with continuously distributed metal is obtained through an infiltration technology, so that a continuous soft phase can effectively disperse external loads, stress concentration is avoided, and the toughness of the composite material is improved.

The utility model discloses leather base cloth for a noise reduction type foot pad, which comprises a polyurethane resin layer, a base cloth layer, a noise reduction layer and a non-slip mat layer, the polyurethane resin layer, the base cloth layer, the noise reduction layer and the non-slip mat layer are fixedly adhered in sequence from top to bottom, a plurality of sound absorption concave holes are arranged on the lower side surface of the noise reduction layer, and the noise reduction concave holes are communicated with the non-slip mat layer. Supporting cushion blocks are arranged in the sound absorption concave holes in a clearance fit mode, positioning protruding columns are arranged at the bottoms of the supporting cushion blocks, positioning holes are formed in the anti-skid cushion layer, and the positioning holes are matched with the positioning protruding columns in an inserted connection mode. A reinforcing structure and an anti-skid design are added, the problems that the sound insulation layer collapses and the foot pad slides after the foot pad made of leather base cloth is used for a long time are effectively solved, the technical performance and the safety of a product are improved, and better use experience and driving safety guarantee are provided for a user. According to the scheme, the multi-layer structural design is adopted, the durability of the whole foot pad can be improved, the service life can be prolonged, the replacement frequency is reduced, and the use cost is saved.

The utility model relates to the technical field of support structures, and provides a double-row support pile foundation pit support for collapsible geology, which comprises a drain pipe and a flushing mechanism, a T-shaped chute is arranged on one side of a support plate, the drain pipe is arranged in the support plate, and one side of the drain pipe is connected with a water pump. Water collection can be achieved through the hollow structures of the drainage pipes, water is allowed to flow between a soil body and the supporting plate through the multiple drainage pipes, accumulation of pore water pressure is reduced, the water gathered in the drainage pipes is discharged through the water pump, the pore water pressure is effectively reduced, and the problem that collapsible geology is high in pore water pressure and prone to water leakage is solved. The problems that the foundation pit collapses and slides due to seepage and deformation of soil around a supporting plate caused by the fact that the foundation pit collapses and slides are solved, a telescopic rod is moved, a water spraying opening is located above a T-shaped sliding groove, a lifting rod is moved up and down, the T-shaped sliding groove is flushed, and the problem that an adjusting mechanism cannot be installed due to the fact that soil is likely to accumulate in the T-shaped groove is solved.

The present invention relates to the field of building construction technology, and in particular to a building construction pre-drilling device with an anti-drift function. In the prior art, the wall strength of the borehole has not been substantially improved, which may lead to the problem of borehole collapse. The technical solution of the present invention is: a building construction pre-drilling device with an anti-drift function, including a drill rod, a drill bit, a housing and a cover plate; the drill rod is fixedly connected and connected to the drill bit; the drill bit is fixedly connected to the housing; the housing is rotatably connected to the cover plate. The present invention continuously rotates the drill bit and the housing, so that the viscous muddy soil located in the spiral groove and the accommodating portion can be squeezed into the peripheral wall of the borehole by the housing and the accommodating portion. Compared with the prior art, squeezing the loose soil into the peripheral wall of the borehole can not only achieve the effect of compacting and strengthening the soil near the borehole, but also further improve the wall strength of the borehole.

The present invention discloses a drilling device and a drilling method for an underground gas hole. First, a casing hole is drilled in a drainage area, a sealing casing is sealed and fixed at the hole mouth, and then a drilling device is connected to the sealing casing. When drilling, a coolant is pressurized and injected into the borehole through a hollow drill rod to support the hole wall. After the hole in the rock formation section is penetrated, a wall-protecting mud is pressurized and injected into the rock formation to form a certain hydrostatic pressure in the hole, which can stabilize the rock wall. After entering the coal seam, clear water drilling is adopted. Water slag generated during the drilling process is separated by a water slag separation device to realize the secondary utilization of resources. When drilling to the final hole, the drainage pipeline is replaced under the pressurized state in the hole to carry out slow pressure reduction drainage. The slow pressure reduction drainage method can avoid the problem of speed-sensitive effect and blockage of the hole wall gap, reduce the attenuation efficiency of the gas amount in the gas hole, and improve the gas extraction amount.

The invention discloses a preparation method of graphene aerogel, which comprises the following steps: preparing a graphene oxide solution with the solid content of 0.5-1%, mixing a reducing agent with the graphene oxide solution, mixing the graphene oxide solution accounting for 99.5-99.9% of the mass of the total system, mixing the reducing agent accounting for 0.1-0.5% of the mass of the total system, and uniformly stirring to obtain the graphene aerogel. Uniformly stirring and dispersing to obtain a graphene hydrogel precursor; putting a plurality of cotton ropes into the graphene hydrogel precursor, performing heating treatment in a high-pressure state, keeping the cotton ropes in a vertical state in the high-pressure heating treatment process, and naturally cooling to normal temperature after the treatment is finished, so as to obtain graphene hydrogel; soaking the graphene hydrogel in a 10%-100% ethanol water solution to remove impurities; and carrying out freeze drying treatment on the graphene hydrogel from which the impurities are removed, so as to obtain the graphene aerogel. According to the scheme, when the graphene aerogel is prepared, fine cotton ropes are added, so that the graphene aerogel has certain supporting force in the preparation process, and the problems of drying cracking, shrinkage and collapse are solved.

A semiconductor process method is provided. The method includes bonding a device wafer to a carrier wafer. The device wafer is to be thinned from an initial thickness to a target thickness. The method also includes determining the radial dimension of an unbonded area formed between the device wafer and the carrier wafer. The unbonded area extends radially from the edge of the bonding interface between the device wafer and the carrier wafer along the radial direction of the device wafer to the edge of the device wafer. The method also includes thinning the device wafer from an initial thickness to an intermediate thickness. The intermediate thickness is greater than or equal to a predetermined proportion of the radial dimension. The method also includes filling the unbonded area so that the radial dimension of the unfilled area in the unbonded area is reduced to below a critical dimension. The critical dimension is a function of the target thickness. The method also includes thinning the device wafer from the intermediate thickness to the target thickness.

The invention provides a high voltage material with single crystal particle morphology, the high voltage material comprises, by mass, 97.5%-99.5% of a main material, 0.3%-1.0% of a dopant and 0.2%-1.5% of a cladding material, the chemical formula of the main material is LixNi1-y-zCoyMnzO2, 0.95 < = x < = 1.15, 0.1 < = y < = 0.30, 0.2 < = z < = 0.40, the dopant is doped in the main material, the dopant is selected from one or more of Ba, Ca, Ti, Sr, Nb, W, Mg, Zr and Al, and the cladding material is coated with the dopant. The coating material is coated on the surface of the main material, and the coating material is selected from one or more of Al2TiO5, ZrTiO4 and MgTiO3. In the preparation process, solid compounds are adopted for mixing, and doping elements are introduced at one time, so that the prepared high-pressure material has a single-crystal morphology, and is high in compaction density, high in energy density, low in residual alkali amount and good in processability. The battery prepared from the high-voltage material disclosed by the invention not only has relatively high cycle performance, but also improves the cycle performance and safety performance of the battery due to the fact that the surface of the main material is coated with the coating layer.

The invention discloses a multi-scale geological prediction method for risky sections of shafts and tunnels based on air-well-hole combination, which relates to the technical field of multi-scale geological prediction for risky sections of shafts and tunnels. A pre-mining geological survey is conducted on the surface of the area where two parallel mine tunnels are located, and the risky geological sections are delineated in combination with geological disaster characteristics; an aero-electromagnetic detection is conducted on the surface above the risky geological sections corresponding to the two parallel tunnels, and whether the geological body between the two tunnels has a water-containing body or a water-conducting structure is judged according to the detection result; according to the judgment result, an oblique drilling is conducted from the risk-free tunnel to the geological body behind the mining face of the high-risk tunnel, and the drilling parameters in the drilling process are obtained, and the drilling slag is collected; based on the drilling slag, the lithology of the rock mass, the type of unfavorable geological body and the degree of abnormality in the geological body between the two tunnels are judged in combination with spectral technology; an acoustic wave test is conducted in the hole, and the integrity of the rock mass is judged in combination with the drilling parameters and the acoustic wave velocity value, so as to complete the multi-scale accurate geological prediction for the risky sections of shafts and tunnels.

The utility model relates to the technical fields of light source disclose a big area light source device, including base, lamp plate, diffusion plate, a plurality of adapter seat and a plurality of tensioning piece, the lamp plate is fixed on the base, the diffusion plate is set up in the lamp plate one side of back to the base, the light emitting path of lamp plate is towards the diffusion plate, each edge of diffusion plate all is fixed with adapter seat, the base is provided with limit groove on at least two opposite inner sides, and at least two opposite adapter seat is embedded to two limit groove one to one, and the width of limit groove and the thickness of adapter seat are adapted, each outer side of base all is connected with tensioning piece, and the tensioning piece is connected with corresponding one adapter seat and exerts the force of pointing to the outside to adapter seat, the application solves the technical problem that the diffusion plate of appearance bigger light source device collapses and leads to the poor light emitting uniformity.

The utility model relates to the technical field of foundation pits, and discloses a foundation pit support structure which comprises a surrounding plate, a sliding rod and a nut, the side, away from a foundation pit, of the surrounding plate is connected with a fixing plate in a sliding mode, the sliding rod is horizontally and fixedly installed on the side, close to the surrounding plate, of the fixing plate, a sliding groove is vertically formed in one side of the surrounding plate, and the nut is arranged in the sliding groove. The outer side of the sliding rod is provided with an external thread. The sliding groove vertically formed in the outer side of the surrounding plate is in sliding connection with the sliding rod horizontally and fixedly installed on one side of the fixing plate, a worker can conveniently adjust the connecting position of the surrounding plate and the fixing plate according to the depth of a foundation pit, a nut on the outer side of the sliding rod is rotated and abuts against the outer side of the surrounding plate, and the fixing plate on the outer side of the surrounding plate can be limited and fixed; the plug pins penetrate through the fixing holes, the fixing plate is conveniently and horizontally fixed to the top end of the foundation pit, meanwhile, the surrounding plate is attached to the inner wall of the foundation pit, and the problem that according to an existing foundation pit enclosure structure, the edge of the foundation pit is prone to collapse can be solved.

The utility model relates to an engineering construction foundation pit support structure, and belongs to the technical field of building construction. Comprising a left side pile column and a right side pile column which are located on the two sides of a foundation pit, a left side mounting frame is detachably mounted on the left side pile column, and a left side soil retaining plate and a left side outer baffle are detachably mounted at the inner end and the outer end of the left side mounting frame correspondingly; and a right side soil baffle and a right side outer baffle are detachably mounted at the inner end and the outer end of the right side mounting frame correspondingly. The foundation pit support structure has the advantages that the soil retaining plates and the outer baffles are arranged on the inner sides and the outer sides of the piles respectively, the soil retaining plates can solve the problem that according to an existing foundation pit support structure, the edge of a foundation pit is prone to collapsing, the outer baffles can prevent pedestrians from getting close to the foundation pit, and the safety coefficient of construction is improved; the mounting frame and the pile column are detachably connected, transportation and on-site assembly are facilitated, the soil retaining plate, the outer baffle and the mounting frame are detachably connected, and the assembly layout can be flexibly adjusted according to construction requirements.

The application discloses an ultrasonic vibration and laser-assisted combined ceramic matrix composite material drilling device and belongs to the field of composite material processing.The device comprises a laser, a main shaft laser channel, a compressed air channel, an optical path adjusting device, an ultrasonic vibration device, a fixing device, a drill bit and the like, wherein the laser is used for emitting laser light, the laser light is incident to the optical path adjusting device through the main shaft laser channel, the optical path adjusting device and the fixing device ensure that two beams of laser light emitted after light splitting are always irradiated by a drill bit through hole on the drill bit, and the function of heating and softening workpiece material is realized; the ultrasonic vibration device makes the end of the drill bit output the main shaft rotation movement and simultaneously output a longitudinal-torsional composite ultrasonic vibration with a certain amplitude, realizes an intermittent contact cutting drilling mode, and reduces cutting force and torque; compressed air blows away cutting chips through the compressed air channel and the drill bit through hole on the drill bit; longitudinal-torsional composite ultrasonic vibration, laser-assisted processing and drilling are organically combined, the damage of the air outlet and inlet is reduced, and the processing quality is improved.

According to the technical scheme, the underground small coal pillar reinforced roadway protection device comprises a fixing frame and a fixing base, supporting plates are installed on the two sides of the top of the fixing frame, a positioning column is installed in a gap between the supporting plates on the two sides, a protection plate is installed on the outer surface of the positioning column, a reinforcing column is installed on the portion, close to the bottom, of the fixing frame, and the reinforcing column is connected with the fixing base. A buffer seat is mounted at the top of the reinforcing column, a supporting seat is mounted in the buffer seat, connecting seats A are mounted on the two sides of the top of the supporting seat, and hydraulic dampers B are mounted at the tops of the connecting seats A through positioning pins. The underground small coal pillar reinforced roadway protection device solves the problems that when an existing roadway protection mechanism supports a small coal pillar, the impact force buffering effect is limited when coal briquettes fall, the roadway protection mechanism is prone to deformation and damage in the long-time using process, and coal mining safety is affected, the deformation and damage probability of the roadway protection mechanism is reduced, and the safety of coal mining is improved. Therefore, the mining safety of the coal mine is improved.

The utility model discloses an equal-diameter butt joint socket press fit pipe fitting, which belongs to the technical field of pipeline connecting devices, and comprises a core sleeve layer and an outer shell layer, the core sleeve layer comprises a socket part and a main body part connected with the outer shell layer, the outer shell layer is convex outwards, and after the socket part of the core sleeve layer is concave inwards, the main body part is connected with the socket part. A bell-and-spigot opening with a double-layer structure is formed between the shell layer and the bell-and-spigot part, and the end part of the bell-and-spigot part of the core sleeve layer is longer than the end part of the shell; the end part of the core sleeve layer relatively extends out of the shell layer for a certain distance, so that the problem of collapse of the end part of the core sleeve layer after lamination is solved, and the sealing performance is improved by about 30%; compatibility is improved, the device is compatible with market nominal outer diameter components, the device is suitable for batch and large-scale production, and the comprehensive cost is saved by more than 20%; and the wall thickness centers of the connected pipe fittings are on the same straight line, so that the stability is improved by more than 20%, and the connectivity is improved by more than 20%.

The utility model discloses a conveyor belt machine used for loosening and conveying a honeycomb interlayer, which comprises a rack and a tray, the rack is provided with a driving roller, a conveyor belt arranged on one side of the driving roller and a driven roller arranged on the other side of the driving roller, and a loosening device used for loosening the honeycomb interlayer is further arranged between the driving roller and the driven roller. The loosening device comprises fixing frames on the two sides, a roller connecting the fixing frames on the two sides and comb teeth obliquely arranged on the roller. According to the utility model, the loosening device for loosening the honeycomb interlayer is arranged and adopts a comb tooth structure design, and comb teeth can penetrate into honeycomb holes to loosen a honeycomb wall in all directions, so that each hole is effectively dredged, and the air permeability and rebound resilience of a honeycomb paper core are improved; the problem that in the prior art, a honeycomb interlayer is prone to deformation and collapse is solved.

The present application discloses a method for forming an isolation structure, a method for preparing a semiconductor device, and a semiconductor device, and relates to the field of semiconductor preparation technology. The method comprises: etching a medium-depth isolation trench on the front side of a wafer; depositing polysilicon in the medium-depth isolation trench through a furnace tube process and forming a polysilicon film layer on the back side of the wafer; removing the polysilicon film layer on the back side of the wafer; growing a silicon nitride film layer on the front and back sides of the wafer through a furnace tube process; etching a deep trench isolation trench on the front side of the wafer; and growing an oxide layer in the deep trench isolation trench. The above-mentioned technical means solve the problem of collapse of the silicon nitride film layer on the surface of the wafer in the prior art, so as to improve the performance and yield of semiconductor devices.