10results about How to "Shrink evenly" patented technology

The invention discloses a flat functional current collector and a preparation method thereof, and relates to the technical field of current collectors. The method specifically comprises the following steps that S1, an organic film and a metal foil are attached to the same release film, and interfaces in the thickness direction are in contact; an intermediate product A is obtained; s2, a metal layer is deposited on the face, away from the release film, of the intermediate product A, and an intermediate product B is obtained; and S3, removing the release film in the intermediate product B, and depositing a metal layer on the surface again to obtain the functional current collector. A continuous conducting layer can exist in the edge area of the functional current collector prepared by the method, and a tab is not required to be reserved or welded like a traditional current collector, so that the structural smoothness of the current collector is kept.

This utility model discloses a bottle outer packaging wrinkle removal machine, including a frame and a box mounted on the top of the frame. The box has an inlet and an outlet at both ends. A transport mechanism is installed inside the box, including a conveyor belt horizontally arranged along the length of the box. One end of the conveyor belt extends beyond the inlet, and the other end extends beyond the outlet. Several high-temperature steam nozzles are arranged along the length of the conveyor belt on both sides and above it. A partition net is installed above the conveyor belt, and an inverted V-shaped gas collecting hood is installed above the partition net, with both ends extending to the inner sidewall of the box. This utility model reduces the flow rate of high-temperature steam through the partition net, improving the wrinkle removal effect of the high-temperature steam; the gas collecting hood cools the high-temperature steam into water droplets and further guides the water droplets to the outside of the conveyor belt, preventing water droplets from dripping onto the conveyor belt and interfering with the bottle wrinkle removal process.

This invention relates to the field of AC power transmission technology, and discloses an end-sealing assembly and method for insulating bushings used in ultra-high voltage AC power transmission. The assembly includes a mounting block, on which two double-slide linear drive modules are fixedly mounted. Two heat shrink tubing opening components and two heat drying components are respectively mounted on the two double-slide linear drive modules. The heat shrink tubing opening component includes a first hot air blower, and two first strip-shaped shape memory alloy tubes that can open and close vertically are mounted on the side of the first hot air blower. The heat drying component includes a swing mechanism, on which a second strip-shaped shape memory alloy tube is mounted. This invention solves the problems of uneven heating and subsequent uneven shrinkage of heat shrink tubing in traditional AC power transmission insulating bushings due to limited hot air coverage and poor operational stability during heating.

The invention relates to the technical field of optical fiber communication equipment, in particular to an intelligent temperature control heat shrink tube heating device and method for 12-core optical fiber splicing, and the device comprises a supporting and fixing module, a magnetic type heating execution module, an intelligent temperature control module, an induction triggering module, a portable power supply module and a protective portable module. The supporting and fixing module comprises a shell, a bottom plate, a supporting rod and a switch fixing plate; the bottom plate is fixed in the shell, the supporting rod is vertically fixed to the top of the bottom plate, and the body is fixed to the top of the bottom plate and embedded into the lower magnet. The switch fixing plate is fixed on one side of the bottom plate; the disassembly and assembly time of the magnetic heating assembly is less than or equal to 10 seconds, tool assistance is not needed, and the cleaning and maintenance efficiency of the heating plate is improved by 80%; the replaceable lining is adaptive to heat shrink tubes with different outer diameters, the universality is high, the 12-core independent heating channel and PID precise temperature control are adopted, the temperature deviation is smaller than or equal to 0.8 DEG C, the heat shrink tubes shrink uniformly, the connection loss dispersion is reduced to be within + / -0.01 dB, and the transmission stability is greatly improved.

This invention discloses a fully automatic feeding, positioning, and heat-shrink packaging machine for grinding wheels, comprising a frame assembly (1), an automatic feeding module (2), an adaptive positioning module (3), a film sealing and cutting module (4), an adjustable speed heat-shrink module (5), a finished product discharge module (6), and an electrical control system (7). The automatic feeding module (2), adaptive positioning module (3), film sealing and cutting module (4), adjustable speed heat-shrink module (5), and finished product discharge module (6) are sequentially installed on the frame assembly (1) along the conveying direction. The electrical control system (7) is electrically connected to each module to achieve coordinated operation of each module. Through modular integrated design, adaptive precise positioning, stepless speed-adjustable heat shrinking, and intelligent collaborative control, the machine achieves fully automated packaging of grinding wheels from feeding to discharging without human intervention, significantly improving packaging accuracy, production efficiency, and product qualification rate.

This invention provides a gradient silicon nitride ceramic femoral head prosthesis and its preparation method, relating to the technical fields of clinical medicine and biomaterials. The femoral head prosthesis is prepared from 88-94 parts of silicon nitride powder, 4-12 parts of sintering aid, 5-20 parts of tungsten carbide titanium, and 0-30 parts of pore-forming agent, wherein the pore-forming agent cannot be 0 parts. The gradient silicon nitride ceramic femoral head prosthesis of this invention retains the advantages of silicon nitride ceramics—low wear, low friction, high strength, high fracture toughness, and good chemical stability—at the interface between the femoral head prosthesis and the liner, while reducing wear on the titanium alloy femoral stem cone caused by the large hardness difference between the femoral head prosthesis and the liner. This reduces the incidence of organ toxicity, periprosthetic osteolysis, and aseptic loosening caused by metal wear debris, improves the survival rate of the femoral head prosthesis and the femoral stem cone, reduces the revision rate of replacement surgery, and saves patients' treatment costs.

The present application relates to the technical field of optical fiber fusion, in particular to a kind of hollow-core optical fiber fusion splicer with variable position cross fan-shaped operation core adjusting mechanism;Including cabinet and the hinge cover of cabinet upper port;The core adjusting mechanism is equipped in the cabinet;The lower presser foot with V-shaped groove at end is moved in position by the core adjusting mechanism;Upper presser foot corresponding with lower presser foot is provided in the inside of cover;The transmission groove is provided in the inside of pedestal in the cabinet;Gear set is transmission connected in the transmission groove;Gear set is driven by driving motor, and is output by eccentric shaft;The present application is lubricated impact to gear set in the process of core adjusting by lubricating assembly, to make gear set more stable in operation after lubrication, on the other hand, the wear of gear set is reduced after the debris on gear set is washed away, the service life of gear set is improved, the service life of core adjusting mechanism is improved, and the overall quality of optical fiber fusion splicer is improved.

This utility model discloses a cooling device for the production of coated wood veneer, including a box body. An electric slide rail is fixedly connected to the top of the inner wall of the box body, and an electric slider is slidably engaged with the outer wall of the electric slide rail. The cooling device also includes a cooling unit disposed inside the box body; a sensing device is disposed on the box body; and a fixing device is disposed below the electric slider. The cooling unit uniformly cools the wood veneer. This utility model relates to the field of cooling technology for the production of coated wood veneer. Through the cooperation of the cooling box, storage box, and refrigerator, when cooling of the wood veneer is required, a circulation pump is first started. The circulation pump draws water from inside the storage box through a distribution pipe into the water drains inside the two cooling boxes. Then, the refrigerator is started, and its two output ends cool the cooling spaces on both sides of the box body separated by an isolation device.

The invention belongs to the technical field of macromolecules, and particularly relates to a low-density PETG shrink film and a preparation method thereof. Comprising a core layer, an upper surface layer and a lower surface layer, the core layer is attached between the upper surface layer and the lower surface layer; the upper surface layer and the lower surface layer are respectively and independently prepared from the following raw materials in parts by weight: 100 parts of PETG polyester, 25-30 parts of modified PET resin, 2-5 parts of an anti-blocking agent, 4-6 parts of a flame retardant and 1-3 parts of a UV absorbent; the core layer is prepared from the following raw materials in parts by weight: 100 parts of PETG polyester, 5 to 10 parts of modified PET resin and 10 to 15 parts of foaming master batch. The low-density PETG shrink film provided by the invention not only has excellent barrier property, but also has high thermal shrinkage rate and high light transmittance.

This invention discloses a mechanical muscle device for an automotive collision dummy, relating to the field of automotive safety testing technology. It includes an end cap, a ball screw with both positive and negative threads, a screw nut, a shell flap, an active connecting rod, a pin, and a buffer structure unit. The buffer structure unit is mounted on the shell flap, and its lattice energy-absorbing core layer adopts one of the following: a beetle-inspired curved rib lattice structure, a chiral nested hexagonal structure, or a hexagonal FBCC structure. Through the mechanical coordinated drive of the ball screw with both positive and negative threads and the X-type scissor unit, the rotational motion of the servo motor is precisely converted into the radial expansion and axial contraction of the shell flap, accurately simulating the active tension and passive stretching of muscles during a collision. Compared to pneumatic or hydraulic solutions, this all-mechanical structure has the advantages of rapid response, high control precision, and no leakage risk, avoiding the instability of fluid components under high-speed impact, and significantly improving the bio-simulation of the dummy and the reliability of test data.