12results about How to "Reduce plastic deformation" patented technology

The invention provides a tube component and a vascular intervention catheter with the same, a notch is formed in the tube component, the notch is provided with a first edge and a second edge, and the first edge and the second edge are oppositely arranged in the axial direction of the tube component; the first edge and the second edge are arc-shaped on the unfolding plane of the pipe component; any point is used as an original point, a straight line passing through the original point and perpendicular to the axial direction of the pipe component is used as an X axis, a straight line passing through the original point and parallel to the axial direction of the pipe component is used as a Y axis, a coordinate system is established, the track of the first side meets a function, the track of the second side meets a function, y1 is larger than or equal to y2, a is the maximum width value of the notch in the axial direction of the pipe component, and b is the outer circumference of the pipe component. The tracks of the first side and the second side meet the cosine functions (1) and (2) respectively, the distribution area of large stress on the pipe component can be increased, stress concentration on the pipe component is reduced, and the fracture resistance and durability of the pipe component are improved.

The utility model relates to the technical field of batteries, in particular to a battery box body, a battery and an electric device. The battery box body comprises a lower box body and a plurality of connecting pieces, the plurality of connecting pieces are arranged on the peripheral side of the lower box body at intervals, the connecting pieces are arranged on the lower box body in a penetrating manner, are in threaded connection with the bracket through first fastening pieces, and are made of steel materials. By arranging the connecting piece made of the steel material, the torque transmission efficiency can be remarkably improved, torque attenuation is avoided, plastic deformation and thread abrasion of the lower box body at the bolt fastening position are reduced, and the service life is prolonged; the structure is simple, and the production cost is reduced; disassembly, assembly and maintenance are convenient, and the maintenance cost is reduced. According to the battery, by applying the battery box body, plastic deformation and thread abrasion of the lower box body at the bolt fastening position can be avoided, the service life of the battery is prolonged, and the maintenance and production cost is reduced. By applying the battery, the service life of the power utilization device is ensured, and the maintenance and production cost is reduced.

This application relates to a permanent magnet electric roller, belonging to the field of motors, and includes a mounting base, a permanent magnet electric roller body, and an expansion sleeve assembly. The mounting base has a mounting through hole; the permanent magnet electric roller body includes a stator spindle, which passes through the mounting through hole; the expansion sleeve assembly is located between the mounting through hole and the stator spindle; when the stator spindle and the mounting through hole have relative rotation or a tendency to rotate relative to each other, the mounting through hole generates a limiting torque through the expansion sleeve assembly to limit the rotation of the stator spindle. When the permanent magnet electric roller is subjected to severe impact loads, the expansion sleeve assembly can absorb impact energy through slight deformation, and the stator spindle can slide relative to the expansion sleeve assembly, converting the impact energy into heat, thereby reducing the impact on the stator spindle. In addition, even if the impact is too large and causes the expansion sleeve assembly to fail, only the expansion sleeve needs to be replaced, without damaging the structural integrity of the stator spindle and the mounting base.

This utility model relates to the technical field of printed circuit board processing equipment, and discloses a fixture and auxiliary tooling for avoiding jamming of thin plates. It includes a plate body with clamping edges for holding the thin plate; a plurality of first clamping pieces spaced apart from the clamping edges; and a plurality of second clamping pieces corresponding to the first clamping pieces, each second clamping piece being positioned at a first preset distance from one side of the first clamping piece. The length of the second clamping piece is greater than that of the first clamping piece. The second clamping pieces are used to bend and engage with a worktable to clamp the thin plate between the first clamping pieces and the second clamping pieces. This design solves the problem of deformation, jamming, and even breakage of thin plate parts during clamping and transportation.

This utility model provides a small-diameter digital communication transmission cable, comprising: multiple pairs of twisted wires, wherein the twisted wires are arranged on both sides of a "I"-shaped filler and twisted together to form a cable core, and the outer side of the cable core is provided with a wrapping layer, a metal foil and plastic composite layer and an outer sheath from the inside to the outside; it solves the technical problems of traditional cables being unable to achieve small outer diameter, high bandwidth, strong anti-interference, long-distance transmission and high durability, and can optimize the cable core structure to improve anti-interference performance and signal transmission bandwidth while ensuring small outer diameter and high flexibility of the cable, and takes into account electromagnetic protection and mechanical strength through composite shielding design, thereby meeting the requirements of high-speed, long-distance and high-reliability communication.

This invention provides a method for reducing friction and wear in a water-based lubricant based on magnetic field-controlled nanochains, belonging to the field of water-based lubricant technology. The invention utilizes magnetic Fe3O4 nanoparticles as raw materials and employs a silanization reaction to achieve magnetic field-assisted self-assembly of one-dimensional Fe3O4@SiO2 nanochains. These nanochains are then dispersed in deionized water or other basic lubricants to form a nanochain water-based lubricant. During lubrication, the one-dimensional nanochains are aligned perpendicular to the sliding direction using a magnetic field, achieving controllable orientation and forming a uniformly oriented rolling bearing structure on the contact area of ​​the friction pair. This significantly reduces the coefficient of friction and wear rate. The method is simple, uses environmentally friendly materials, and allows for real-time control of the lubrication state. It can be widely applied to friction reduction and wear resistance in mechanical transmissions, water-lubricated bearings, flexible device interface protection, and micro-precision moving parts.

The utility model relates to the technical field of joints or sealing of underground structures, in particular to a connecting device for an inspection well and a pipeline, preformed holes are formed in a well wall, the connecting device comprises a connecting block, the connecting block comprises connecting clamping plates and an arc-shaped inserting plate, and each connecting clamping plate is provided with an arc-shaped groove; every two connecting blocks form a group, the two groups are located on the two sides of the well wall correspondingly, and the two connecting blocks in the same group are symmetrically arranged up and down; the arc-shaped inserting plate is inserted into the preformed hole, the connecting clamping plate abuts against the well wall, and the arc-shaped groove abuts against the pipeline; the two connecting blocks in the same group are locked and fixed through a locking mechanism; a drainage groove is formed in the connecting block on the upper side; a pouring channel is formed by gaps among the drainage groove, the well wall, the arc-shaped insertion plate, the preformed hole and the pipeline; compared with a manual concrete filling mode, effective pouring and flowing filling of the concrete can be achieved through the pouring channel, the problems of insufficient compactness, hollowing and the like caused by manual filling are avoided, and the concrete compactness of the connecting joint is guaranteed.

The application discloses a kind of adhesive tape cutting processes, comprising the following steps: S1: the adhesive tape to be cut in roll is installed on unwinding roller;S2: by unwinding roller make the base material layer of adhesive tape upward, release paper layer downward, and be sent to pre-cutting station along predetermined path;S3: when unwinding adhesive tape reaches pre-cutting station, first cutting device is not cut to the adhesive tape positioned at this time;S5: under the action of unwinding roller, the adhesive tape segment that has completed pre-cutting is sent to stretch separation station.Compared with prior art, the application uses first cutting device to cut incompletely by pre-cutting, then stretch separation uses stretch separation mechanism to break adhesive tape by tension, at the same time, due to release paper layer as support, adhesive layer will not be deformed or adhere to tool during cutting, the whole process avoids traditional one-time cutting-through process, cutting resistance is smaller, reduces plastic deformation and fiber pull-out, and also avoids the generation of burr.

The application discloses a punching process for a Mylar sheet, which solves the edge quality problem caused by uneven stress in traditional single-sided punching. The process realizes high-precision processing through double-sided synchronous punching and composite clamping positioning: after the Mylar sheet is introduced into the punching area by a conveying mechanism, the adsorption clamping mechanism is adsorbed and clamped by a negative pressure cavity and tensioned by an elastic pressure head, forming double positioning of center fixing and edge tensioning; the punch mechanism drives the asymmetric synchronous movement of the upper and lower punch heads through rack and pinion transmission, the lower punch head is driven to go down by the upper punch head, and the two punch heads meet and punch at the knife groove, so that the shearing force is symmetrically distributed on both sides of the material, and the unilateral bending moment effect is eliminated. The equipment adopts modular design, and the punch head and the adsorption box can be quickly replaced to adapt to different hole types. Through force field balance control and precise transmission, the process significantly reduces edge flanging and burrs, improves hole consistency, is suitable for precise Mylar sheet processing in the fields of electronics and electrical appliances, and has the advantages of high efficiency, stability, convenient type changing and the like.

This invention discloses a fusion reactor divertor tube-plate composite module and cooling target plate structure, relating to the field of magnetic confinement fusion divertor technology. The composite module includes a plasma-facing component and a transition layer. The plasma-facing component is located on the periphery and is used for contact with the plasma. A through-hole matching the transition layer is provided in the plasma-facing component. The transition layer is metallurgically connected within the through-hole, and a cooling pipe is metallurgically connected within the transition layer. Coolant flows through the cooling pipe to remove heat generated by fusion. The outer side of the transition layer has a U-shaped structure with a flat top and a round bottom, while the inner side has a circular structure. This design effectively increases the weight ratio of the transition layer to the plasma-facing component, improving the overall thermal conductivity of the composite module, alleviating stress and strain concentration problems, and ensuring the safety of the divertor target plate module, preventing the target plate material from detaching and contaminating the reactor core plasma under high heat loads.

This invention discloses a foundationless construction system that uses its own weight as a reference for center of gravity adjustment, enabling the external climbing tower crane to be constructed within a shaft. The system employs a movable wedge micro-adjustment structure, where a movable component drives a strip structure to clamp the tower itself, thus adjusting the tower's load-bearing structure. Simultaneously, an arc-shaped plate structure provides bending resistance to the entire plate, minimizing the impact of individual failures of the movable component (i.e., the independent movable wedge) on the clamping action. Furthermore, elastic pads are used to reduce metal fatigue and plastic deformation caused by rigid structural collisions.

This application belongs to the field of strip steel uncoiling control technology, specifically proposing a method, device, medium, and electronic equipment for uncoiling control of high-strength strip steel. The method includes: after the strip steel is welded at the welding machine, pressing down the straightening machine and multiple pinch rolls between the uncoiler and the welding machine to tighten the strip steel; controlling the uncoiler to reverse under the action of the tensioning torque to output the initial uncoiling tension; simultaneously dividing the straightening machine and multiple pinch rolls into a first roll group and a second roll group according to their distance from the uncoiler, and controlling the first roll group and the second roll group to reverse synchronously with the uncoiler according to the first driving speed and the second driving speed, respectively; tracking the uncoiling length of the strip steel during the uncoiling tensioning process in real time, and determining the number of remaining coils of the strip steel on the uncoiler mandrel based on the uncoiling length; controlling the uncoiling tension output by the uncoiler based on the number of remaining coils, and controlling the expansion mode of the uncoiler mandrel. The technical solution provided by this application can improve the yield of high-strength strip steel.