58results about How to "Increase the number of bends" patented technology

The method includes: 1) plates through-hole on the flexible multilayer circuit board on which the through-hole is drilled; 2) presses a dry film on the flexible multiplayer circuit board whose through-holes are plated; 3) light exposing method is used to indicate the location of the through-hole; 4) develops the image of through-hole on the copper foil to distinguish the location of through-hole from the other area covered by the dry film; 5) plates the through hole with copper; 6) remove the dry film by using chemical agent. The flexible multilayer circuit board can bear 60,000-100,000 times of bending.

The invention provides a method for connecting a reciprocating rotation object with a static object by utilizing a flexible plate. The reciprocating rotation object is fixed on a rotating shaft and can rotate together with the rotating shaft, a first part of the flexible plate extends from the reciprocating rotation object to the rotating shaft, and a second part of the flexible plate extends from the rotating shaft to the static object; and the method is characterized in that the first part of the flexible plate is fixedly arranged relative to the reciprocating rotation object and the rotating shaft, and the second part of the flexible plate is arranged by winding around the rotating shaft, so that the second part of the flexible plate can be wound up or unwound along with the reciprocating rotation of the rotating shaft. The invention further relates to an ultrasonic probe. According to the invention, the stress area of the flexible plate is significantly increased through the arrangement way of the flexible plate by winding around the rotating shaft, and the shearing force in a unit area can become small, so that the number of bending times of the flexible plate can be significantly improved, the reliability of the flexible plate is improved, and the service life of the flexible plate is prolonged, thus the reliability of the ultrasonic probe is improved and the service life of the ultrasonic probe is also prolonged.

The invention discloses a flexible lithium ion battery. The flexible lithium ion battery comprises an electrical core and an outer packaging film which is wrapped outside the electrical core; flexible membranes are arranged between the outer packaging film and the upper surface of the electrical core and between the outer packaging film and the lower surface of the electrical core, and cover the upper surface and the lower surface of the electrical core, a plurality of buffer bulges are arranged between at least one piece of the flexible film and the outer packaging film, and concave pits are formed in the buffer bulges and correspond to the inner surface of the outer packaging film. The buffer bulges are added on the surface of the electrical core, and have certain elasticity, and the whole battery takes precedence over a pole piece to be extruded by a bending stress while bending, thereby protecting power falling and fracture of the pole piece for bearing an excessively high stress to increase the bending times of the battery.

The invention relates to a soft printing circuit board which comprises a bending part. The bending part is provided with a wiring area of earth wires in which a plurality of copper areas are evenly distributed in a pattern design. Bending the soft printing circuit board can facilitate the dispersion of stress, effectively reduce the stress produced when the soft circuit board is bent and avoid breaking earth wires and signals wires so as to improve the bending performance of the soft printing circuit board.

The invention discloses a flexible display panel. The flexible display panel comprises a bending area and plane display areas located on the two sides of the bending area., t The flexible display panel comprises a flexible substrate, an array substrate, a light-emitting function layer and a packaging layer which are arranged in a stacked mode, and in the bending area, a stress release structure isformed on the packaging layer in the bending direction. When the flexible display panel is bent, a a stress release space is provided for the flexible display panel by arranging the stress release structure in the bending direction of the packaging layer, so that the effects of reducing stress generated during bending and increasing the bending frequency of the flexible display panel are achieved.

The invention relates to a machining process of a rotation-torsion threaded copper pipe, which comprises the following steps of: selecting a copper pipe with the wall thickness T of 0.7 + / -0.03mm, wherein the copper pipe is in a state of TP2Y2 and has the hardness of 90 to 100HV; and then cutting the processed copper pipe by using a metal cutting machine so as to cut the processed copper pipe into copper pipes to be processed with the same length, cleaning the copper pipes to be processed by using a water-soluble cleaning agent and drying the copper pipes to be processed. The machining process is characterized in that the dried copper pipes to be processed are fed into a threaded pipe machine through a conveying device, core rods are inserted into the copper pipes to be processed; one ends of the copper pipes to be processed and one ends of the core rods are clamped in a first chuck of the threaded pipe machine, one ends of the copper pipes are fixed firmly, the other ends of the copper pipes to be processed are clamped in a second chuck of the threaded pipe machine and can rotate, three pressing pit needles are distributed at the position of the second chuck of the threaded pipemachine, the walls of the copper pipes to be processed are radially pressed by the three pressing pit needles, the stresses at the positions of the thread forming initial ends of the copper pipes to be processed are changed and the three pit needles extend towards the other ends along with the rotation of the second chuck to form three spiral grooves, so that screw threads are formed; and then the copper pipes to be processed are cleaned by using the water-soluble cleaning agent, are dried, are subjected to vacuum annealing to be in a soft state TP2M and are checked and packaged. The machining process has the advantages of high production efficiency, stable quality of the produced products, a large number of bending times and the like.

The invention discloses a different-diameter joint-free corrugated connecting pipe and a manufacturing method thereof. The different-diameter joint-free corrugated connecting pipe is of an integrated structure, and sequentially comprises a first port (1), a first corrugated pipe (2), an unthreaded pipe (3), a second corrugated pipe (4) and a second port (5). The outer diameter of the unthreaded pipe (3) is smaller than that of each of the first corrugated pipe (2) and the second corrugated pipe (4). The wall thickness of the unthreaded pipe (3) is larger than that of each of the first corrugated pipe (2) and the second corrugated pipe (4). The different-diameter joint-free corrugated connecting pipe is of the integrated structure and free of leakage, and the pipe wall of an unthreaded pipe section is thicker than the pipe walls of corrugated pipe sections, so that the different-diameter joint-free corrugated connecting pipe is less prone to bending and deforming during mounting, and normal circulation of media in the pipe can be ensured.

The invention relates to non-oriented electrical steel for an efficient motor. The non-oriented electrical steel for the efficient motor is prepared from the chemical components in percentage by weight: less than or equal to 0.0030% of C, 1.9-2.1% of Si, 0.28-0.32% of Mn, 0.10-0.60% of Al, 0.01-0.06% of P, less than or equal to 0.0050% of S, 0.10-0.30% of Cu, 0.02-0.05% of Sb and less than or equal to 0.0030% of N. The production process comprises the following steps: smelting; cogging; repeatedly forging to obtain square billets; heating; hot-rolling; normalizing; pickling; cold-rolling; and thermally heating. By controlling the total weight of main alloy elements (Si+Al+Mn) and auxiliary elements (Cu+P+Sb), favorable effects of elements in physical metallurgy are fully exerted. By researching the composite effect of elements (Cu+P+Sb) on silicon steel organization structure and magnetism, partial (Si+Al) is replaced by (Cu+P). On the one hand, the inflection time of a normalized plate can be improved and on the other hand, the punching property of a finished plate is improved. The non-oriented electrical steel for the efficient motor excellent in magnetic property and good in punching effect is developed.

The invention provides a buffer structure, a display panel and a manufacturing method of a buffer structure. The display panel includes at least one buffer structure including a first inorganic layer,a second inorganic layer, and an organic layer. Trapezoidal grooves arranged at intervals are arranged at the surface of one side of the first inorganic layer, the second inorganic layer is arrangedon the surface of one side, provided with the trapezoidal grooves, of the first inorganic layer, covers the surface of the inner side of the trapezoidal grooves and connected at the groove mouths to form a capillary channel; and the organic layer fills the capillary channel. The manufacturing method of a buffer structure comprises the steps of: manufacturing an inorganic layer, a second inorganiclayer and an organic layer. The bending stress of the inorganic layers can be effectively relieved by allowing the organic layer to penetrate the inorganic layers, and the number of times of bending of the display panel is improved without influence of the inorganic layers on the barrier property of water and oxygen.

The invention discloses a bending-proof shoe outsole. The bending-proof shoe outsole comprises a front sole part and a rear heel part, wherein three transverse grooves which are transversely designed are formed in the front sole part; the three transverse grooves are distributed at intervals towards the longitudinal direction. After the technical scheme is adopted, compared with the prior art, the technical scheme has the following advantages that the transverse grooves are designed in the front sole part which drives a human body to move, and the anti-vibration performance of the bending-proof shoe outsole can be increased; meanwhile, the bending frequency of the bending-proof shoe outsole can be increased, and the service life is prolonged.

The invention relates to a high-strength copper-clad steel conductor. A production technique of a high-strength copper-clad steel conductor used for an inner core wire of a coaxial cable is characterized by comprising the following steps: rough drawing, medium temperature tempering, oxide layer removal, fine drawing, treatment before electro-deposition, acid electrolysis, washing, pretreatment ofelectro-deposition, washing, thick treatment of the electro-deposition, washing, oxidation protection, drying, tank wire drawing, washing, oxidation protection, drying and collecting lines and tray filling. Physical properties such as tensile strength, elongation, small reduction of area and bending times of the high-strength copper-clad steel conductor produced by the technique are enhanced.

The invention provides a gel electrolyte, a battery cell containing the same, a paper shell battery and a preparation method of the paper shell battery. A paper shell thin lithium ion battery comprises a shell, a corrosion-resistant layer and a battery cell, wherein the corrosion-resistant layer is arranged on an inner wall of the shell, the battery cell is packaged in the shell, the shell material is gas-tight paper, a positive pole plate of the battery cell comprises a first substrate and a positive paste layer, a negative pole plate of the battery cell comprises a second substrate and a negative paste layer, the positive paste layer and the negative paste layer are both in close contact with the gel electrolyte, a tab is integratedly formed at one side, right opposite to the gel electrolyte, of each of the first substrate and the second substrate, and the two tabs both extend out of the shell. In the paper shell thin lithium ion battery provided by the invention, the gas-tight paper is used as outer package of the battery cell, the corrosion-resistant layer is arranged between the gas-tight paper and the battery cell, the internal resistance of the battery can be increased, the battery weight is reduced, the specific capacity is improved, and the bending frequency of the battery is increased.

The invention discloses a circuit board and a display device. The circuit board comprises at least one flexible base layer and a metal circuit layer which are arranged in a laminated mode, rigid areas and a flexible area, wherein the rigid areas are located on the two sides of the flexible area, rigid base materials are arranged on the rigid areas, at least part of the flexible area is arranged to be of a wave structure to form a bending area, and the wave structure extends towards the rigid area. According to the embodiment of the invention, the integrated board with the soft and hard structure is arranged, and at least part of the flexible area is arranged to be of the wave structure to form the bending area, so that the circuit board can achieve the accumulation and release of stress through tiny tensile compression deformation by utilizing the wave structure similar to a spring in the folding, bending or flattening process, and high bending times of the circuit board in the bending area can be ensured; and the soft and hard integrated structure can prevent the soft board from being damaged due to pulling during assembling, bending and pulling, so that the reliability of the circuit board in a folded product is improved.

The invention discloses an electrochemical corrosion process for the production of medium and high voltage anode foil, which comprises the following steps: A. Pretreatment: put the aluminum foil into a mixed solution of sodium hydroxide and potassium hydroxide at a temperature of 35-45°C, Soak for 40-60s; B. Pores: Put the pretreated aluminum foil into a mixed solution containing 10-15% hydrochloric acid and 35-45% sulfuric acid by mass at a temperature of 65-75°C to control the corrosion current density 250-400mA / cm2, carry out the hole corrosion for 100-120s; C, expand the hole: wash the aluminum foil after the hole with deionized water, put it into the aluminum foil with a temperature of 80-90°C and a mass percentage of 11-15%. In the nitric acid solution, control the hole expansion current to 50-150mA / cm2, and carry out hole expansion for 9-12 minutes; D, post-treatment; E, drying. The electrochemical corrosion process of the present invention has a simple process and is easy to control the process, and can effectively ensure stable foil surface quality of the produced medium and high voltage anode foil, and has both high specific volume and high strength.

A flexible lithium-ion battery, comprising an electric core and an outer packaging film wrapped outside the electric core; a flexible film is arranged between the outer packaging film and the upper surface and the lower surface of the electric core, and the flexible film covers the On the upper surface and the lower surface, at least one piece of flexible film and the outer packaging film are provided with several buffer protrusions, and the inner surface of the outer packaging film is provided with pits corresponding to the buffer protrusions. A buffer protrusion is added on the surface of the battery cell. The buffer protrusion has a certain degree of elasticity. When the battery as a whole is bent, it will be squeezed by the bending stress prior to the pole piece, thereby protecting the pole piece from powder shedding due to excessive stress. Fracture, increasing the number of times the battery is bent.

The invention discloses a manufacturing process of waterproof crazy horse leather, and relates to the technical field of leather surface treatment. The process comprises the steps of material preparation, surface smoothing treatment, wet-process material treatment, wet-process base production, attachment and post-treatment to obtain the crazy horse leather, wherein a wet-process material comprises 30D polyurethane, 35D polyurethane, a DMF (dimethyl formamide) solvent and wood fiber powder, a produced wet-process material base uses guide cloth as a carrier, and the wet-process material base is stripped from the guide cloth and then bonded to cow split leather through a water-based adhesive. According to the process, the prepared wet-process base layer is attached to the waterproof split leather in a mold transfer manner, the damage to a waterproof layer on the leather surface caused by direct high-temperature coating is avoided, the number of bending times in effective waterproof use of the crazy horse leather is guaranteed, and compared with a traditional method, the number of bending times is increased by nearly one time and reaches 15000. Besides, the cow split leather can be used as a raw material for production, so that compared with a traditional method of using cow top grain leather, the production cost is greatly reduced, and the problem of raw material shortage in the industry is solved.