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58results about How to "Change resilience" patented technology

Preparation method of polypropylene composite material with high strength and high toughness

A preparation method of a polypropylene composite material with high strength and high toughness belongs to the fields of chemical engineering and fine chemical industry. The preparation method comprises the following steps: weighing components according to the following mass percents: 10-45% of homopolymerized polypropylene, 10-25% of copolymerized polypropylene, 15-40% of copolymerized polypropylene, 9-16% of POE, 5-35% of polypropylene reinforcing toughening modifiers, 0.15-0.4% of nucleating agents, 0.25-0.55% of anti-oxidants, and 0.2-0.5% of lubricants; adding the weighed materials into a high-speed mixer, fully mixing at a speed of 1000 r / min for two minutes, releasing the materials; adding the mixed materials into a hopper of a double screw extruder, extruding the materials according to technological parameters to obtain the composite material particles. According to the polypropylene composite material of the invention, the crystallization state of polypropylene is changed by components of the polypropylene reinforcing toughening modifier, the ethane-octylene copolymer, the nucleating agent and the like, and thus mechanical properties such as strength and toughness of the composite material are changed.
Owner:CHANGCHUN DALI NANO TECH DEV

Trigger device and interactive terminal with same

ActiveCN111330262AChange resilienceChange magnetic forceVideo gamesTouch SensesEngineering
The invention discloses a trigger device and an interactive terminal with the same. The trigger device comprises a trigger support and a trigger movably arranged on the trigger support. The trigger device also comprises: a trigger electromagnet, wherein the trigger electromagnet is fixed on the trigger; a support electromagnet which is relatively fixed with the trigger support, wherein the supportelectromagnet and the trigger electromagnet in the pressed state have the attraction or repulsion effect; and an electromagnetic control device which is connected with the electromagnetic coil of thetrigger electromagnet and the electromagnetic coil of the support electromagnet and used for adjusting voltage or current in the electromagnetic coil of the trigger electromagnet and the electromagnetic coil of the support electromagnet. According to the trigger device provided by the invention, the electromagnetic control device is used for adjusting the current in the electromagnetic coil of the trigger electromagnet and the electromagnetic coil of the support electromagnet, the magnetic force received by the trigger electromagnet is changed, the resilience force received by the trigger ischanged, different trigger feedback forces are provided for a user, and therefore different tactile feelings are provided for the user based on different game environments.
Owner:GEER TECH CO LTD

Steel fireproof door for inflammable storage warehouse

The invention discloses a steel fireproof door for an inflammable storage warehouse, and relates to the technical field of fireproof doors. The steel fireproof door aims at solving the locking problem. The steel fireproof door specifically comprises a door frame, door leaves, a connecting mechanism used for connecting the door frame with the door leaves, closing mechanisms used for ensuring that the door leaves are normally closed and an automatic locking mechanism used for locking the door leaves when a fire occurs, wherein the automatic locking mechanism comprises clamping blocks arranged inone of the door leaves and clamping grooves formed in the other door leaf and matched with the clamping blocks; and containing grooves are formed in the inner walls of the door leaves, and containingcylinders are fixedly arranged on the inner walls of the containing grooves. According to the steel fireproof door for the inflammable storage warehouse, by arranging the automatic locking mechanism,if the fire occurs, liquid inside the containing cylinders is heated and evaporated, therefore the internal pressure intensity of the containing cylinders is sharply increased, locking pistons push piston connecting rods to stretch out, and then the clamping blocks stretch out and are inserted into the clamping grooves, so that it is guaranteed that the two door leaves are mutually locked, and the blocking effect is safely and reliably achieved.
Owner:杭州嘉威机械配件有限公司

Steel wire heat treatment quenching process

The invention discloses a steel wire heat treatment quenching process. The steel wire heat treatment quenching process comprises the following steps of leading out a steel wire through a roller of a pay-off machine, horizontally outputting the steel wire after passing through a positioning device, and heating the steel wire to 900-950 DEG C to convert the structure into austenite; quenching and preserving heat the austenite in molten lead or salt (a mixture of sodium nitrate and potassium nitrate or calcium chloride, sodium chloride and potassium chloride) with the temperature of 480-550 DEG C for a period of time to enable the austenite to be subjected to isothermal transformation into fine pearlite, heating the wire to the temperature above a critical point, preserving heat for a certain time, and quickly cooling to a standard value temperature; the heat preservation time is long enough to form a required spheroidized structure; heating to the temperature above the upper critical point, quickly cooling to the temperature which is about 30 DEG C higher than the standard value, and cooling to the temperature below the lower critical point (about 650 DEG C) at the speed of 5 DEG C/h; heating to a lower critical point or a slightly lower temperature, preserving heat for enough time to form a required spheroidized structure (generally 8-12 hours), and heating the steel wire to 30-50 DEG C above the lower critical point.
Owner:陈冬英

Preparation method of high-strength and high-toughness metal material with shell-like brick mud structure

The invention discloses a preparation method of a high-strength and high-toughness metal material with a shell-like brick mud structure. The preparation method comprises the following steps that S1, an alloy plate is completely annealed to eliminate anisotropy; S2, the surface of the annealed alloy plate is pretreated; S3, the pretreated alloy plate is placed on a workbench, an alternate cooling and heating system (3) is placed between the workbench and the alloy plate, and pre-tightening force is applied for locking; and S4, a stirring head is installed on friction stir machining equipment, the rotating speed, the welding speed, the machining distance, the pressing amount and the stirring needle front inclination angle of a stirring head are selected, the locked alloy plate is subjected to friction stir welding, and a first long and straight welding seam (1) is formed. According to the preparation method of the high-strength and high-toughness metal material with the shell-like brickmud structure, the shell-like brick mud structure is achieved through alternating of weld joints and base metal, the alloy strength is improved, meanwhile, the toughness of the material is reserved, and the method is an economical and effective technical method used for preparing the high-performance alloy plate and capable of achieving industrial production.
Owner:NANJING INST OF TECH

Method for improving silk production rate of silkworm cocoons

The invention discloses a method for improving a silk production rate of silkworm cocoons and belongs to the technical field of silk production of silkworm cocoons. The method disclosed by the invention comprises the following steps: soaking silkworm cocoons in brine for 1-5 hours before silk reeling of the silkworm cocoons; taking out the silkworm cocoons, and rinsing the residual brine on the surfaces of the silkworm cocoons; adding the silkworm cocoons treated in the step A into a soaking solution prepared from sodium bicarbonate, polyethylene wax, sodium stearate, perfiuoro-sodium sulfonate, sodium borate, sodium pyrophosphate, sodium tripolyphosphate, polyether and water, and soaking for 2-6 hours; and taking the silkworm cocoons out, and rinsing the residual soaking solution on the surfaces of the silkworm cocoons. According to the method disclosed by the invention, the silkworm cocoons are added into the brine at the specific temperature and concentration before silk reeling, sothat the surface tension is changed; and the silkworm cocoons are added into the soaking solution prepared from the sodium bicarbonate, polyethylene wax, sodium stearate, perfiuoro-sodium sulfonate,sodium borate, sodium pyrophosphate, sodium tripolyphosphate, polyether and water, so that the smoothness and toughness of silk in the silkworm cocoons are changed, and the silk production rate of thesilkworm cocoons in the silk reeling process is effectively improved.
Owner:LUZHAI GUISHENG COCOON SILK IND & TRADE

Multi-layer protective inflatable packaging bag with self-adhesive film

The invention provides a multi-layer protective inflatable packaging bag with a self-adhesive film. The multi-layer protective inflatable packaging bag with the self-adhesive film which is characterized in that an upper-layer bag body is formed by a first-layer film, a third-layer film, a fifth-layer film and a seventh-layer film; a lower-layer bag body is formed by a second-layer film, a fourth-layer film, a sixth-layer film and an eighth-layer film; the first-layer film to the eighth-layer film are fixedly connected through a first heat sealing line and a second heat sealing line which are located on two sides of the bag body in a heat sealing mode; and a tight cavity used for placing a transported object is formed by the first-layer film and the second-layer film, a first inflation cavity is formed by the first-layer film to the fourth-layer film, and a second inflation cavity is formed by the fifth-layer film to the eighth-layer film. Through double-layer protection of the two inflation cavities, the occurrence of the phenomenon that in the object conveying process, one inflation cavity is damaged, air leaks, and the conveyed object loses protection can be prevented. The third-layer film to the fifth-layer film are pressure stimulation response self-adhesive films, have good adhesive strength, durability and low peel strength, ensure rapid and low-void-ratio bonding, and donot need to use external bonding technologies such as back glues or heat sealing.
Owner:杭州空气盒子包装有限公司

Finish machining grinding machine and using method

InactiveCN112809517ARealize centered movementUpright stackingPortable grinding machinesBonded abrasive wheelsWear particleMachine
The invention discloses a finish machining grinding machine and a using method. The finish machining grinding machine structurally comprises a machine head structure, a machine handle, a machine body and a machine tail, wherein the machine head structure is connected with the machine body in an installing mode, the machine body and the machine tail are embedded, the machine head structure is composed of a grinding material and a machine head, the grinding material is connected with the machine head in an installing mode, the grinding material comprises a grinding outer ring and a grinding inner circle, and the grinding outer ring and the grinding inner circle are embedded. According to the finish machining grinding machine, the machining mode that the outer ring is combined with the inner circle is adopted for grinding materials, the grinding outer ring is finely ground, the grinding inner circle is ground, grinding is realized, broken abrasive particles are collected, the machine head is pushed through the stacking of the abrasive particles, the rotating speed of the abrasive materials is changed, the hardness and toughness during grinding are enhanced, the sharpness is improved through the hardness, the attaching distance between the grinding material and a grinding piece is increased, so that the toughness is improved, and the machining quality is improved.
Owner:赖太忠

Horizontally-arranged six-degree-of-freedom constant-rigidity mechanism

The invention discloses a horizontally-arranged six-degree-of-freedom constant-rigidity mechanism which comprises an upper platform, a bottom plate, composite spherical hinges, a spherical hinge, supporting rods, a guide rail sliding block assembly and six electromagnetic rigidity-adjustable units of the same structure. The two ends of a shaft, fixedly provided with a permanent magnet, in each electromagnetic rigidity-adjustable unit are fixed to the bottom plate through shaft supports, shells moving in the axial direction in the electromagnetic rigidity-adjustable units are fixed to a sliding block of the guide rail sliding block assembly through sliding block base plates, and the guide rail sliding block assembly is fixed to the bottom plate. The spherical hinge is installed at the top of the shell, the three composite spherical hinges are evenly installed at the bottom of the upper platform, one end of each supporting rod is in threaded connection with the spherical hinge, and the other ends of the supporting rods are in threaded connection with the composite spherical hinges. According to the horizontally-arranged six-degree-of-freedom constant-rigidity mechanism, when the pose of a system or an external load changes, the rigidity of the system can be kept constant through current control.
Owner:CHONGQING UNIV
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