16results about How to "Solve the rupture" patented technology

The utility model discloses a chemical mechanical polishing and planarization system, which at least comprises a polishing head. A plurality of air holes are formed in the lower surface of the hard disc, and a third air cavity communicated with the air holes is formed in the hard disc; at least part of the elastic unit is of an annular structure, the elastic unit is connected with the polishing head body and the hard disc, and a second air cavity is defined by the polishing head body, the elastic unit and the hard disc; a retaining ring; when the third air cavity is in a negative pressure state, the lower surface of the hard disc can make contact with and adsorb the wafer substrate, and the pressure in the second air cavity is controllable, so that the elastic unit is driven to flexibly move, the hard disc and the wafer substrate are assisted to float, and chemical mechanical polishing of the wafer substrate is achieved. The hard drive in the hard disc solves the problem that when the flexible film drives the wafer substrate to polish, the flexible film is pulled to cause fracture or elastic modulus change under the severe polishing condition, and the service life of the flexible piece is prolonged.

The invention belongs to the technical field of aircraft manufacturing, and discloses a stainless steel deep U ship-shaped thick skin tailor-welding drawing shape control method and a forming die, which are used for reversely calculating various key sizes of a drawing process piece by constructing different drawing coefficients and controlling the deformation degree of each part of the drawing process piece. The technical problems that a stainless steel deep U-shaped ship-shaped thick skin blank is insufficient in size, prone to instability and wrinkling in the forming process and large in resilience after being formed are solved. According to different bearing strengths of all parts of a tailor-welded blank, structural design key points of the drawing die are specified in detail, including a gap between a convex die and a concave die, a blank pressing gap, a gap between a drawing rib and a drawing groove and the like, the design thought is complete, the structural design of similar dies can be guided, and the universality is high.

The invention relates to surface differential lubrication, in particular to a surface differential lubrication method for an aviation internal high-pressure forming three-way pipe. The top of the three-way branch pipe can be effectively prevented from being broken, and meanwhile wrinkles in a non-deformation area are effectively prevented. Comprising the following steps: S1, selecting a metal tube blank with certain outer diameter and wall thickness according to the specification of a finished product; s2, the surface quality and the internal quality of the pipe blank are checked; s3, the pipe blank is cut to the length of 250 mm; s4, a material supplementing area, a deformation area and a non-deformation area are marked on the pipe blank through a marking pen; s5, the non-deformation area is subjected to polishing treatment through raw abrasive paper; s6, a molybdenum disulfide lubricant is sprayed to the deformation area to reduce friction force; s7, the material supplementing area is not treated; s8, the pipe blank is placed in the dies, and the upper die and the lower die are closed to start the forming process; s9, advancing to a water injection position through a left pushing head and a right pushing head; s10, continuously advancing to a sealing position; s11, liquid is injected into the pipe through the push head; s12, applying counter-acting force to the formed three-way branch pipe by using a reverse thrust head; and S13, forming is completed.

The utility model relates to the field of medical auxiliary instrument, concretely relates to a portable blood sample anticoagulation mixing device, including mixing support base, detachable connection is established the sealed protective cover of mixing support base upper end, the upper end fixed connection of sealed protective cover has the carrying handle, still including mixing mechanism, the utility model discloses the whole device adopts compact structure design, need not power, solve the poor portability of existing device, the problem of dependence on commercial power, the device realizes the bidirectional swing of blood collection tube through pressing drive swing, solve the problem that uneven mixing caused by manual swing in the prior art, the problem that the blood cell is broken caused by excessive force, the inner wall that test tube is placed is equipped with rubber antiskid pad and multiple groups of rubber protruding, solve the problem that the existing device fixed inner diameter, poor adaptability.

This utility model discloses an edge-distributed perforated photovoltaic module, comprising: a laminate, on which a first battery string group, a second battery string group, and a third battery string group are disposed; the second and third battery string groups are connected in parallel and then in series with the first battery string group; the first battery string group includes multiple battery strings connected in parallel, and each battery string is divided into two parts connected in series, upper and lower, by a bus bar; the upper part of the first battery string group is connected to a first bypass diode, the lower part of the first battery string group is connected to a second bypass diode, the second battery string group is connected to a third bypass diode, and the third battery string group is connected to a fourth bypass diode; each bypass diode is respectively disposed near the corner of the laminate. This design avoids opening holes in the middle of the backsheet, reduces the risk of stress concentration, and thus solves the problem that opening holes in the middle area of ​​the backsheet easily leads to glass breakage, thereby improving the strength of the laminate.

The utility model discloses a splash-proof condensation vessel and a reaction container, which belong to the technical field of experimental vessels and containers, the splash-proof condensation vessel comprises a flow guide assembly and a condensation pipe, the flow guide assembly comprises a first flow guide vessel, the first flow guide vessel is provided with a liquid inlet, a first flow guide channel and a liquid outlet, and the liquid inlet, the first flow guide channel and the liquid outlet are communicated in sequence; the condensation pipe is sleeved with the first flow guide vessel, the condensation pipe is provided with a first air port and a second air port, the first air port and the liquid inlet are both located in the first end of the first flow guide vessel, and the second air port and the liquid outlet are both located in the second end of the first flow guide vessel. The container is communicated with the outside through the condensation pipe, when the content of gas in the container is reduced, large pressure difference is generated inside and outside the container, due to the pressure difference, the gas in the condensation pipe can automatically enter the container, the pressure difference inside and outside the container is balanced, and the problem that the container is prone to deformation and breakage is solved.

The utility model relates to the technical field of heating and ventilation equipment, in particular to a heat exchange system and heating and ventilation equipment. The heat exchange system comprises a refrigerant circulating pipeline and a refrigerant adjusting pipeline, the refrigerant adjusting pipeline communicates with the refrigerant circulating pipeline in a parallel connection mode, and a liquid storage assembly is arranged on the refrigerant adjusting pipeline. The refrigerant adjusting pipeline is provided with a first valve, the first valve is a normally open solenoid valve, and / or the heat exchange system further comprises an unloading pipeline, the liquid storage assembly is communicated with the unloading pipeline, and the unloading pipeline is provided with an unloading valve for controlling the unloading pipeline so as to release the pressure in the liquid storage assembly. The refrigerant in the liquid storage assembly of the heat exchange system can flow into the refrigerant circulation pipeline through the normally-open electromagnetic valve, the pressure in the liquid storage assembly is reduced, and the probability of breakage of the liquid storage assembly is reduced; or the refrigerant in the liquid storage assembly is opened through the unloading valve of the unloading pipeline, the pressure in the liquid storage assembly is released, and the breakage probability of the liquid storage assembly is reduced.

This invention relates to the field of functional food preparation technology, and particularly to an age-appropriate fast-disintegrating functional food tablet and its preparation method. The preparation method of the age-appropriate fast-disintegrating functional food tablet includes steps such as preparing mucosal adhesion microparticles, preparing an inner phase rapid-release phase, preparing an outer phase fast-disintegrating framework phase, core-shell biphase tableting, inner enteric coating, and outer saliva-isolating coating. This invention solves the problems of enteric coating tablet breakage and premature gastric release caused by the mechanical mismatch between the microparticles and the matrix binary system, achieving the maintenance of the integrity of the inner enteric coating and the stability of tableting quality; the problems of traditional enteric coatings being directly exposed to oral saliva leading to surface pre-swelling, decreased integrity after entering the stomach, and premature dissolution in the elevated gastric pH environment of the elderly; and the inability of primary diffusion release to match the short intestinal absorption window, slow peristalsis, and uncontrollable retention time of active ingredients in the elderly.

The invention belongs to the technical field of battery welding, and discloses a heterojunction battery interconnection welding method and a battery assembly. Coating a conductive adhesive on the welding bracket; welding a plurality of cleaned battery pieces, laying the battery pieces on a welding bracket, and heating, curing and welding to form a battery string; and the adjacent battery strings are connected with the welding bracket through the welding strips to form the heterojunction battery. According to the interconnection welding method for the heterojunction battery, through a series of elaborate design and process control, the problem that the battery piece is possibly cracked due to stress generated by external force impact, subfissure or temperature difference shrinkage in the welding process is effectively solved, so that the electrical property and the photoelectric conversion efficiency of the battery piece are remarkably improved; and the quality and the reliability of the battery assembly are ensured.

The invention provides a vertical etching device for a glass substrate, and relates to the field of glass substrate etching, the vertical etching device for the glass substrate comprises a base and a nozzle arranged on the base, and further comprises a spraying mechanism arranged on the base and a clamping mechanism arranged on the base, and the vertical etching device for the glass substrate aims at solving the problem that in the prior art, when the glass substrate is below 0.5 mm, the spraying mechanism is not arranged on the base, and the clamping mechanism is arranged on the base. In order to solve the problem that a glass substrate is likely to be damaged due to the fact that vertical impact force is applied to etching liquid medicine, normal etching work can be carried out when the glass substrate is below 0.5 mm through a spraying mechanism, a clamping mechanism and a mixing mechanism which are arranged; according to the glass substrate etching device, through the arrangement of spraying liquid medicine on the upper part and spraying pure water on the lower part, the uniformity of glass substrate etching work is achieved in cooperation with a compensation etching mode, and the problem that in the prior art, a glass substrate is uneven in the etching process is solved; by arranging the clamping mechanism and the spraying mechanism, the problem that in the prior art, the etching area of the glass substrate is directly cleaned through high-pressure liquid medicine, and consequently breakage is caused is solved.

The utility model relates to the technical field of mechanical equipment, and discloses an alignment mechanism suitable for a panel, which comprises a frame, the frame is connected with two parallel centering components through a guide component, and two synchronous belts capable of synchronously rotating in the same direction are oppositely arranged on the inner side of the frame; wherein one centering assembly is connected with the lower edge of the synchronous belt through a first connecting piece, and the other centering assembly is connected with the upper edge of the synchronous belt through a second connecting piece. The driving assembly drives the two synchronous belts to rotate synchronously in the same direction, the two centering assemblies are horizontally close to or away from the center position of the frame under the action of the first connecting piece and the second connecting piece, the problem of deflection of the alignment plate is effectively solved through the structure, and the problem that the alignment plate cannot be aligned when the alignment mechanism is used for centering a positioning panel can be solved. The problem that the edge of the panel is broken due to uneven stress of clamping force is solved, and the yield of the panel is greatly improved.

The invention discloses a water layer adjusting device for euphausia superba fishing operation, and belongs to the technical field of fishery trawls.The device comprises a driving part, the side of the driving part is connected with a beam assembly through a base frame, the driving part comprises a shell of a rotary body structure, the two ends of the shell are arranged in a penetrating mode, a base plate parallel to the axis of the shell is arranged in the shell, and a generator is arranged on the base plate; and one end part of the shell is provided with a paddle connected with the generator. The power generator and the paddles are arranged to collect water flow energy in the dragging process to obtain energy, the energy is stored and then output to control the vertical action of the truss rod assembly, and the whole adjusting device ascends and dives in water to reach the proper water layer height to conduct trapping operation.

The utility model relates to the technical field of highland barley tea boiling, and discloses a three-station teacup machine for highland barley tea boiling, which comprises a stirring component and a rotating rod, the rotating rod is fixedly connected with a plurality of groups of connecting blocks, baffles are arranged outside the connecting blocks, locking rods are arranged on the inner sides of the baffles, soaking blades are inserted and matched with the locking rods, and a releasing sliding plate is arranged on one side of each locking rod. The stirring assembly is arranged in the heating kettle, the stirring assembly is composed of the rotating rod, one end of the rotating rod is fixedly connected with the multiple sets of connecting blocks, the baffles are arranged outside the connecting blocks, the locking rods are arranged on the inner sides of the baffles, the locking rods are arranged on the inner sides of the baffles, and therefore the stirring assembly can be conveniently stirred. The problem that hulls of highland barley are broken in the stirring process is effectively solved through the soaking blades matched with the locking rods in an inserted mode, meanwhile, effective protection and high-quality soaking of the highland barley are achieved, purer and mellower tea water experience is provided for users, the operation process is simplified, and the practicability and convenience of the equipment are improved.

The embodiment of the utility model discloses a display device and a vehicle-mounted display system, and relates to but is not limited to a display technology. The display device comprises a shell assembly provided with an installation space, a metal back plate installed in the installation space and a display screen. The shell assembly is provided with a first side face and a second side face which are oppositely arranged. The display screen is located on the first side and connected with the metal backboard. The metal back plate is provided with at least one first connecting piece which can extend out of the first avoiding space located on the second side face to be connected with the vehicle body. The first connecting piece can be integrally formed along with the metal back plate in a metal casting mode, so that the first connecting piece has the advantages of being large in strength, good in rigidity, small in deformation and the like, accurate positioning of the display screen and a vehicle body is guaranteed, the situation that the display device is fixed by independently depending on the shell assembly is avoided, and the risk that the display screen is broken due to bending deformation of the shell assembly is reduced.

This utility model discloses a portable mobile punching machine for edible mushroom bags, including a punching device connected to a sliding conveyor mechanism. The punching device is connected above a traveling mechanism via a lifting device. The traveling mechanism is a wheeled structure with braked universal wheels, and the lifting device can adjust the punching height. The punching device includes a clamping mechanism and a punching assembly. The clamping mechanism uses arc-shaped clamping blocks to stabilize the mushroom bags, and the punching assembly achieves flexible punching through a needle plate with a guide rod and a punching needle with a buffer spring. The sliding conveyor mechanism is a three-section slide that can be extended and hinged. This utility model can be flexibly applied to mushroom bag cultivation racks in any position through the traveling mechanism at the bottom, and the mushroom bags can slide directly onto the mushroom bag cultivation rack through the conveyor slide on the device, improving work efficiency. In addition, the punching device absorbs the impact force at the moment of punching through the buffer spring, reducing the breakage of the mushroom bags.

The invention discloses a sample preparation method for TEM (Transmission Electron Microscope) characterization of a powdery sample. The method comprises the following steps: (1) selecting a proper grid; (2) selecting a dispersing agent according to the property of the powder sample; (3) pouring the solution or the suspension into a liquid storage tank of an ultrasonic atomizer, and setting proper ultrasonic frequency, power and atomizing gas flow parameters according to the properties of the raw materials and the expected particle size requirements of the powder; and (4) collecting the sample: starting ultrasonic atomization equipment, enabling the solution or the suspension liquid to form tiny liquid drops under the ultrasonic action, spraying the tiny liquid drops along with atomized gas, and collecting the tiny liquid drops by using a proper carrying net. The invention aims to provide a sample preparation method for TEM (Transmission Electron Microscope) characterization of a powdery sample, and nano particles are uniformly deposited on a TEM carrier net by adopting an ultrasonic atomization spraying coating technology.