67results about How to "Super elastic" patented technology

The invention discloses a modeling method of a necrosis caput femoris restoring model based on an umbrella-shaped caput femoris supporter. The modeling method comprises the steps that firstly, a three-dimensional model of a to-be-restored caput femoris is obtained, wherein the NURBS curved surface model of the to-be-restored caput femoris is obtained, the to-be-restored caput femoris is a caput femoris which exists in the thigh tissue necrosis area and is pre-restored by the caput femoris supporter, and the caput femoris supporter is composed of an umbrella-shaped supporter body and a supporting sleeve; secondly, the necrosis area needing to be separated is determined according to the shape of the umbrella-shaped supporter body, and a necrosis caput femoris model is established; thirdly, a caput femoris supporter model is established; fourthly, a necrosis caput femoris implantation model is established, wherein the necrosis caput femoris implantation model with an implantation channel and a three-dimensional model of an implanted bone are established; fifthly, the necrosis caput femoris restoring model is established. The modeling method is simple in step, reasonable in design, convenient to achieve and good in using effect, the restoring model of the caput femoris supporter implanted into the necrosis caput femoris can be easily, conveniently and quickly established, and the quality of the established restoring model is high.

A free-standing rebound system for use with a table tennis table wherein the system comprises: paired multi-legged telescoping support stands with an uppermost shaft having an uppermost portion with a hole therein; a mounting assembly including a shaft collar, screw spacer dowel pin and a thumbscrew; and a rectangular, framed rebound board having two rebounding surfaces which may be coated in natural and/or synthetic rubber blends and paired wood insert nuts oppositely arranged at the midpoint on two shorter sides. The apparatus is adjustable to orient the rebound board above the table tennis table at any distance from the net, at any latitudinal angle, or behind the back edge of the table opposite the player at any distance, height or angle as required by the abilities and training goals of the player.

This invention relates to one spring eye glass rack, which comprises frame one and leg two connected by hinge, wherein, the eye glass legs two has one super spring part three made of shape memory alloy and flexible macromolecule materials; due to super spring part, eye glass rack has spring functions.

The invention relates to a superelastic low elastic modulus titanium alloy material and a preparation method and application thereof, belonging to the field of biomedical materials. The alloy material is composed of niobium, zirconium, oxygen and titanium, and its atomic percentage composition is 18% of niobium, 10-13% of zirconium, 0.5-1.5% of oxygen, and the rest is titanium. Using vacuum non-consumable electric arc furnace melting plus solution treatment, cold rolling, and short-time annealing treatment, the room temperature superelasticity of the obtained material is 2.5-4.5%, the elastic modulus is 50-60GPa, and the elongation is 6-20%. It is suitable for biomedical materials such as brackets and dental arch wires.

The present invention relates to an ultra-high molecular weight polyethylene enhanced high-flow delivery high-pressure hose and manufacturing method thereof. The hose includes an outer rubber layer, a reinforcing layer and an inner rubber layer from outside to inside. A thickness of the outer rubber layer is 0.3-6.0 mm. A thickness of the reinforcing layer is 1.0-5.0 mm. A thickness of the inner layer is 0.3-5.0 mm. The outer rubber layer and the inner layer are obtained by co-extruding onto the reinforcing layer using a coextrusion equipment. The manufacturing method includes the following steps: rubber mixing, preparing the reinforcing layer, producing a finished product, vulcanizing and pressure testing. The hose of the invention has the advantages of light weight, good flexibility, abrasion resistance, corrosion resistance and good weather fastness. The hose can be connected through a plurality of standard buckles, which is easy to wind up, easy to assemble and disassemble.

The invention relates to the technical field of engineering structure shock isolation, in particular to a slip device for a shock isolation structure. The device includes two sets of sliding assemblies arranged horizontally from up down. The two sets of sliding assemblies are perpendicular with each other. Each set of sliding assembly includes a sliding block and a sliding rail. The sliding blockis slidably connected with the sliding rail. The upper sliding block is connected with the lower sliding block through a flexible connecting piece. The flexible connecting piece is a shape memory alloy wire rope. According to the invention, the displacement requirements of the structure on the horizontal directions are met through the upper and lower groups of sliding assemblies perpendicular witheach other; according to the device, the vertical resistance-to-tensile capability between the upper and lower structures can be provided through the shape memory alloy wire rope to make up for the poor resistance to tensile of the shock isolation device. Meanwhile, orthogonal sliding assemblies are arranged to ensure that the mechanical properties of the shock isolation layer of the structure will not be affected. The device has the advantages of simple structure, fast assembly, and has good application prospect in shock insulation engineering with remarkable resistance-to-tensile energy consumption requirements in high-rise buildings, special-shaped buildings, oblique bridges and bent bridges and the like.

The invention relates to the technical field of coatings and in particular relates to an efficient water-based coating. The water-based coating comprises the following components in percentage by weight: 5-10% of zinc stearate, 10-15% of wax powder, 3-8% of a thickening agent, 10-15% of carbamide resin powder, 9-15% of titanium dioxide powder, 5-7% of calcium carbonate, 4-7% of kaolin, 9-12% of silicon dioxide powder, 1-2% of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 1-2% of bactericide and the balance of deionized water. The invention aims to provide the efficient water-based coating which is long in service life and convenient to construct.

The invention provides medical beta titanium alloy powder suitable for 3D printing and a preparation method and application thereof. The elastic medical beta titanium alloy powder is composed of, by mass, 18-30% of Nb, 0.2-1.5% of ReSi2 and the balance Ti, and ReSi2 is selected from one of YSi2, LaSi2, NdSi2 and ErSi2; and the powder is prepared by an electrode induction melting gas atomization method (EIGA), that is, alloy is smelted by a medium-frequency induction furnace and cast into a mold to obtain a consumable electrode, and then powder is prepared by argon atomization. The particle size of the powder is-300-1000 meshes, and the yield of qualified powder is not lower than 50%. The rare earth is adopted to capture free oxygen in the alloy, the plasticity and the superelasticity are improved, the alloy has an excellent shape memory effect, when the tensile pre-strain is less than 5%, the recoverable strain rate after unloading exceeds 90%, and a finished product prepared by the method can meet the requirements of medical materials such as stents and dental or orthopedic joints.

The present invention discloses a preparation method of snowy moon cakes containing pearl powder. The preparation method comprises the following technological processes: pre-mixed powder of the snowy moon cakes containing the pearl powder preparing, dough preparing, stuffing preparing, snowy moon cake preparing, packaging, etc. The pre-mixed powder of the snowy moon cakes and the moon cakes well preserve the nutritional value of the pearl powder, wherein the pre-mixed powder of the snowy moon cakes can be used as separate commodity ready for sales and is used to prepare the snowy moon cakes with health-care functions.

The invention discloses a self-limiting reset composite friction pendulum support with a variable friction coefficient. The self-limiting reset composite friction pendulum support comprises a first energy dissipation pendulum seat, a central energy dissipation block, a second energy dissipation pendulum seat, a high-damping rubber-spring ring, a viscous damper and a shape memory alloy spring. The device has four energy dissipation mechanisms, the central energy dissipation sliding block is located between the first energy dissipation swing seat and the second energy dissipation swing seat, and the friction coefficients of friction plates between the central energy dissipation sliding block and the first energy dissipation swing seat and between the central energy dissipation sliding block and the second energy dissipation swing seat are sequentially increased from inside to outside; the friction coefficient of the friction plate between the stainless steel sliding plate and the stainless steel supporting plate is sequentially increased from inside to outside; a high-damping rubber-spring ring is arranged on the inner side of the displacement restraint ring; the viscous damper is installed between the first energy dissipation swing seat and the second energy dissipation swing seat in an X-shaped hinged mode. The shape memory alloy springs are installed among the four corners of the first energy dissipation swing seat and the four corners of the second energy dissipation swing seat in a hinged mode. The seismic isolation device can accurately recognize an earthquake, has excellent damping and rigidity self-adaptive adjusting capacity, is high in seismic reduction and energy dissipation capacity, has excellent self-limiting and resetting functions, and belongs to the technical field of seismic isolation.

The invention discloses a memory alloy damper. The memory alloy damper comprises a damper body. The damper body is of a three-dimensional net rack structure which is formed by winding at least one memory alloy wire. The memory alloy damper has superelasticity and good damping performance, is resistant to abrasion, corrosion, high-low temperatures and vacuum and suitable for different environments, and can effectively reduce various vibrations, prevent looseness, reduce noise, prolong the service life of equipment and improve the equipment safety.

The invention discloses a connection pair for a lock nut with a memory alloy ring. The connection pair is used for locking a connected piece and comprises a locking piece with a thread, and a memory alloy gasket arranged on the locking piece in a penetrating manner and making contact with the surface of the connected piece. The connection pair is simple in structure and firm in locking, further has good corrosion resistance and can be used on fastening parts in harsh environments such as ships and the chemical industry.

The invention discloses a spinal fusion cage, and belongs to the technical field of bio-medical metal materials, in particular a homogeneous hyper-elastic porous interbody fusion cage. The spinal fusion cage provided by the invention has a novel structure. The spinal fusion cage, through special structural design, not only guarantees braking, fixing and durable supporting performances but also greatly improves a fusion rate between an implant and surrounding tissues, so that the problems that the spinal fusion cage is easily loosened and is poor in new bone formation capacity are thoroughly solved. The spinal fusion cage disclosed by the invention is integrally represented as a three-dimensional interlinked porous structure and is made by weaving and sintering metal wires; and the metal wires are made from pure titanium, titanium alloy, pure tantalum or tantalum alloy.