2417 results about "Rubber material" patented technology

The invention discloses a multi-layer protection cable resistant to an extreme environment, and belongs to the technical field of cables. The cable is of a seven-layer composite structure design and sequentially comprises a conductor, an insulating layer, a shielding layer, a buffer layer, a waterproof layer, a heat insulation layer and a protective outer layer from inside to outside, and the conductor is made of high-purity oxygen-free copper; the insulating layer is made of a polyimide material and has high temperature resistance, low temperature resistance and excellent insulating property; the shielding layer is composed of a tinned copper wire woven mesh and a high-permeability permalloy foil, and electromagnetic interference is effectively shielded; the buffer layer is made of an elastic rubber material to relieve mechanical stress; the waterproof layer adopts a nanoscale fluorosilicone resin coating and has excellent waterproof performance; the heat insulation layer is made of ceramic fibers and aerogel, and efficient heat insulation is provided; and the protective outer layer is made of a high-strength and corrosion-resistant polyether-ether-ketone (PEEK) material. The cable has excellent high temperature resistance, low temperature resistance, corrosion resistance and electromagnetic interference resistance, is suitable for extreme environments, and ensures stable transmission of electric power and signals under extreme conditions.

Provided is a component of a suspension structure, which can achieve weight reduction while ensuring rigidity. As the component of the suspension structure for a vehicle, a lower arm includes a body made of metal. A reinforcing member that increases a rigidity of the body is securely attached along an edge of the body. The reinforcing member is made of a resin material or a rubber material.

The invention discloses a preparation method of tread rubber, and belongs to the field of rubber processing. The preparation method comprises the following steps: pretreating aramid pulp, a coupling agent and a lubricant, and then adding the pretreated aramid pulp, the coupling agent and the lubricant into natural rubber to prepare aramid pulp master batch particles; the obtained aramid pulp master batch particles are added into raw materials for preparing tread rubber, and the prepared rubber material has excellent mechanical properties, wear resistance and low rolling resistance. According to the method, the dispersity and interface combination of the aramid pulp in the rubber are remarkably optimized, the comprehensive improvement of the mechanical property, the wear resistance and the rolling resistance of the tread rubber is realized, and the tread rubber has outstanding industrial application value.

The application discloses a kind of automobile seat slide rail structures, it is related to the technical field of automobile accessories, it includes outer rail, inner rail, rocker mechanism and guiding limiting mechanism;Rocker mechanism includes the rod body being arranged in inner rail, the proximal end of rod body is connected with crank after extending out of inner rail, the distal end of rod body is provided with locking plate and torsion spring;The side of locking plate is connected with rod body, the other side of locking plate is provided with several clamping teeth;The side wall of outer rail is provided with locking hole compatible with clamping tooth;Guiding limiting mechanism includes fixed plate, limiting pin and limiting block;Fixed plate is arranged in inner rail and below rod body, the middle part of fixed plate is provided with guiding slot along the axial direction of inner rail;The lower end of limiting pin is connected with the inner bottom wall of outer rail, the upper end of limiting pin is passed through guiding slot and then abuts on rod body;Limiting block is provided with through hole for rod body to pass through, and the upper end of limiting block is connected with inner rail, the lower end of limiting block is connected with fixed plate;Limiting pin and limiting block are made of rubber material.

The invention provides an anti-extrusion cable and a cable connection structure, and relates to the technical field of cables.The anti-extrusion cable comprises a cable body, the cable body comprises a middle sheath, a shielding layer, a plurality of guide cores, a filling layer and an inner insulating sheath, the guide cores are evenly arranged on the inner side of the middle sheath, and the shielding layer is arranged on the inner side of the middle sheath; the guide cores, the inner insulating sheaths and the shielding layers are arranged in a one-to-one correspondence manner, the inner insulating sheaths tightly wrap the outer sides of the guide cores, the shielding layers tightly wrap the outer sides of the inner insulating sheaths, and the filling layers are filled in gaps between the shielding layers and the middle sheath; a middle sheath of a cable main body is made of chloroprene rubber materials and provides stable support for an internal structure, a spiral spring steel wire fixedly sleeved on the outer side of the middle sheath can effectively disperse external extrusion acting force and improve the overall anti-extrusion performance of the cable, and a silicone rubber layer coated on the outer side of the steel wire is tightly attached to the steel wire and extends to the outer wall of the middle sheath to be in hot melting connection, so that the service life of the cable is prolonged. And extrusion impact can be buffered in an auxiliary manner.

The invention provides a damping liquid silicone rubber material which is obtained by curing a damping liquid silicone rubber raw material composition, and also provides damping liquid silicone rubber and a preparation method thereof. The hardness and strength of the liquid silicone rubber material are improved through filling of the MQ silicon resin and the high-white carbon black, meanwhile, a large number of interface areas are formed by the nano-particles and a matrix, microcosmic slippage of the interfaces is generated under the action of dynamic stress, mechanical energy is converted into heat energy through friction and viscous effects between the interfaces and molecular chains, and damping is improved; according to the invention, by introducing methyl-terminated vinyl silicone oil, a silicone rubber chain forms a large number of suspension chain structures, energy dissipation is enhanced, hydrogen-containing chain extension is carried out at a use end, a main polymer has a longer free molecular chain segment to generate a friction effect, and the damping performance of the liquid silicone rubber material is further improved. Experimental results show that the liquid silicone rubber provided by the invention has excellent damping, mechanical and other properties under high hardness.

The invention discloses a preparation method of a rubber waterstop material with a low compression set rate, which comprises the following steps: firstly, carrying out blending reaction on hydroxyl silicone oil and boric acid to obtain liquid polyborosiloxane; the preparation method comprises the following steps: adding liquid polyborosiloxane and natural rubber into an internal mixer according to a ratio, and carrying out internal mixing to obtain a mixture; adding zinc oxide, an anti-aging agent, stearic acid and an anti-tearing agent into the obtained mixture, and continuously mixing; continuously adding kaolin talcum powder, calcium carbonate, calcium oxide, white carbon black, N550, N330 and KH550, and internally mixing again to obtain a preform; adding a vulcanization accelerator and a vulcanizing agent into the preform, and continuously mixing to obtain a rubber material to be vulcanized; and vulcanizing and forming the rubber material to be vulcanized to prepare the rubber water-stop belt material with the low compression set rate. According to the invention, the compression set rate of the rubber material can be reduced while the tensile strength, elongation, tear resistance and other properties of the rubber are not sacrificed, so that the product performance is enhanced.

The invention relates to the technical field of automobile parts, in particular to an automobile rubber sealing part and a preparation method thereof. A metal framework base material is stamped in a numerical control mode, and a framework blank is obtained by controlling deviation through a positioning pin; after being slightly roughened, the blank is phosphatized, coated with a special rubber prime coat adhesive and subjected to infrared drying; weighing the raw materials according to the ratio, feeding into an internal mixer by stages, and mixing at controlled temperature and speed to obtain a rubber compound; feeding the mixed rubber into a double-roller open mill to press a continuous rubber sheet in a step-by-step distance-adjusting manner; performing hydraulic cutting by a special cutting die to obtain a slightly large formed rubber sheet; sticking the molded film to the framework into a mold with a positioning boss, exhausting, boosting and vulcanizing to obtain a semi-finished product; feeding the semi-finished product into a hot air oven and introducing nitrogen for secondary vulcanization; and carrying out laser thickness measurement and visual inspection, packaging qualified products in an anti-static manner, and sealing in a corrugated carton. The framework precision and the rubber bonding strength are improved, and degumming is avoided; stable rubber material performance and uniform rubber sheet thickness are guaranteed, and material shortage is reduced; vulcanization displacement and bubbles are prevented, rubber oxidation and aging are inhibited, and the durability and stability of the product are improved.

The invention relates to the technical field of rubber materials, and provides a flame-retardant rubber hose and a preparation method thereof. The flame-retardant rubber hose comprises an inner rubber layer, a reinforcing layer and an outer rubber layer, and raw materials of the inner rubber layer and the outer rubber layer respectively and independently comprise the following components in parts by weight: 10-15 parts of MQ silicone rubber, 85-90 parts of nitrile rubber, 3-7 parts of 3-carboxyl-4-hydroxy-acetoacetanilide modified graphene, 35-45 parts of filler, 1-3 parts of an anti-aging agent, 5-10 parts of a plasticizer, 2-5 parts of an activating agent, 1-2 parts of a vulcanizing agent and 0.5-1.5 parts of an accelerant. According to the technical scheme, the problem that the rubber hose in the prior art is insufficient in mechanical property and flame retardant property is solved.

The invention provides multi-structure-layer flaky silver-coated aluminum powder, a preparation method of the multi-structure-layer flaky silver-coated aluminum powder and a conductive rubber material. The multi-structure-layer flaky silver-coated aluminum powder comprises flaky aluminum powder, a silicon dioxide layer and a silver layer, the silicon dioxide layer is coated on the surface of the flaky aluminum powder, and the silver layer is coated on the surface of the silicon dioxide layer. According to the multi-structure-layer flaky silver-coated aluminum powder, the preparation method thereof and the conductive rubber material, the multi-layer composite structure design of aluminum core-silicon dioxide layer-silver layer is adopted, the problems that aluminum powder is poor in stability and silver is prone to migration are solved, and the multi-structure-layer flaky silver-coated aluminum powder has the advantages of being low in cost and resistant to shearing; therefore, the novel white conductive filler with high performance, high stability and high applicability is obtained.

The invention provides a phase change enhanced ablation-resistant modified liquid silicone rubber material as well as a preparation method and application thereof, and belongs to the field of advanced materials. According to the invention, paraffin is adopted as a phase change filler, so that the ablation resistance and heat insulation performance of the expanded ceramic liquid silicone rubber material are remarkably improved, and the prepared silicone rubber composite material has the advantages of low density, low ablation surface temperature, strong carbon layer and high heat absorption capacity. The phase-change reinforced modified expanded ceramic flexible ablation-resistant material further improves the ablation resistance and high-temperature heat insulation performance of a liquid silicone rubber material, and has a good application prospect in the fields of aerospace thermal protection, building heat insulation and the like.

The invention belongs to the technical field of sealing materials, and particularly relates to a rubber composite sealing material and a liquid phase preparation method and application thereof. According to the liquid-phase preparation method of the rubber composite sealing material, provided by the invention, based on deep understanding of a liquid-phase synthesis process of first liquid-phase pre-dispersion and then condensation, a modified carbon black dispersion liquid, a modification auxiliary agent and a modified synthetic rubber latex dispersion liquid are prepared, so that carbon black and the auxiliary agent can be promoted to be uniformly and stably dispersed in a synthetic rubber system; the dispersion uniformity of the carbon black and the auxiliary agent is improved, so that the vulcanized rubber composite sealing material is not easy to have insufficient or excessive local crosslinking or structural defects, thereby improving the mechanical property, air tightness and cold resistance of the rubber composite sealing material, and being a high-performance rubber composite material; the technical problem that a high-performance rubber material is difficult to prepare by an existing preparation method is solved.

A green and sustainable tire base rubber composition and a preparation method, relating to the technical field of tire production. The composition comprises a tire base. The tire base comprises 100 parts by weight of cis-1,4-polyisoprene, 20-40 parts by weight of bio-based carbon black, 0-20 parts by weight of bio-based silicon, 0-20 parts by weight of a silane coupling agent, 1-3 parts by weight of stearic acid, 2-7 parts by weight of zinc oxide, 0.5-2 parts by weight of a carbon black coupling agent, 1.5-3.5 parts by weight of the antioxidant 6PPD, 0.5-2 parts by weight of the antioxidant TMQ, 1.5-2 parts by weight of oil-extended sulfur powder, and 1.5-3.0 parts by weight of the accelerator CZ. The use of the carbon black coupling agent reduces the heat build-up of a rubber material, however, the Mooney viscosity of the rubber is significantly increased. Once a dedicated process has been used, the viscosity of the rubber material is controlled, and the tanδ value of the heat build-up of the rubber material at 60°C is significantly reduced, so that the rolling resistance of a tire is reduced, and the tire maintains good physical and mechanical properties.

The utility model relates to the technical field of woven bag processing, and discloses an automatic woven bag turn-over processing device which comprises a machine tool, a conveying belt is arranged on the inner wall of the machine tool, a plurality of supporting columns are fixedly connected to the top of the machine tool, and the tops of the supporting columns are fixedly connected with the same top plate. A fixing frame is fixedly connected to the top of the machine tool, a guide roller is slidably connected to the outer wall of the fixing frame, a driving assembly is arranged on the front side of the guide roller, a guide plate is fixedly connected to the inner wall of the fixing frame, two guide grooves are formed in the top of the guide plate, and a clamping plate is slidably connected to the top of the guide plate. According to the utility model, the surface of the pinch roller is made of a rubber material with certain elasticity, so that the pinch roller can be better attached to the woven bag when pressing the surface of the woven bag, the end part of the woven bag is effectively prevented from tilting, and meanwhile, the clamping piece is rotationally connected with the top of the clamping plate, so that the clip can be flexibly opened and closed.

The invention relates to the technical field of automobile engineering, and discloses a composite sealing strip embedded corrosion-resistant light-weight vehicle door structure which comprises a vehicle door body, a vehicle door edge is arranged on the outer side of the vehicle door body in a surrounding and protruding mode, and a sealing strip assembly is arranged on the inner side of the vehicle door edge in a surrounding mode. Internal gas is bidirectionally shunted through a communicating groove and a vent groove, part of the gas flows into a buffer folding hose to enable the buffer folding hose to rapidly expand and extend, door closing impact energy is absorbed by means of the high resilience characteristic of foamed rubber, a traditional single buffer structure is replaced to realize energy shunting, hard contact force is greatly weakened, and abnormal sound is eliminated. The other part of gas drives sealing rubber extrusion blocks at the upper end and the lower end of a clamping block to expand, so that the sealing rubber extrusion blocks are tightly attached to a vehicle body door frame fitting block, and the defect of compression permanent deformation after a traditional single rubber strip is opened and closed for a long time is overcome in cooperation with the double-sealing effect that a sealing air bag is tightly attached after pressure relief through an exhaust hole.

The invention provides a rubber material high-temperature tension-torsion fatigue comprehensive testing machine. The rubber material high-temperature tension-torsion fatigue comprehensive testing machine comprises a rack, a stretching mechanism, a torsion mechanism, a clamp, a sensor and a temperature control box, the stretching mechanism and the twisting mechanism are oppositely arranged on the rack, the opposite ends of the stretching mechanism and the twisting mechanism clamp the rubber product through the clamp, and stretching and twisting of the rubber product are achieved respectively. And a sensor is used for monitoring the load applied to the rubber product in the test process in real time. The temperature control box enables the clamping end of the clamp, the movable end of the stretching mechanism connected with the clamping end and the output shaft of the torsion mechanism to extend into the temperature control box. After the rubber product is clamped, the whole effective test section of the rubber product is completely located in the inner cavity of the temperature control box, and the temperature adjusting device in the temperature control box is adjusted, so that the temperature in the box quickly reaches and is stabilized at a preset value, and the requirement of carrying out tension-torsion fatigue test on the rubber product in different temperature environments is met; finally, the test purposes of tension-torsion combined loading and high-temperature environment simulation are achieved.

The invention discloses a high-strength, low-temperature-resistant and aging-resistant polymer rubber material and a preparation method thereof in the technical field of rubber materials. The high-strength, low-temperature-resistant and aging-resistant polymer rubber material comprises the following components in parts by weight: 100-120 parts of a rubber matrix, 44-62.5 parts of an interface auxiliary agent, 8-15 parts of a vulcanization system, 4-5 parts of a protection system and 8-12 parts of a toughening agent. According to the invention, a multi-component synergistic system is constructed by the multifunctional reinforcer, amino-terminated polysiloxane, amino-terminated polybutadiene and epoxidized soybean oil, and meanwhile, a carbon black / Si-69 interface assistant and a protection / vulcanization system are optimized, so that the synergistic improvement of mechanical properties, low temperature resistance and aging resistance is achieved; the technical problems that traditional rubber is single, excellent in performance and unbalanced in comprehensive performance are solved.

The present invention discloses a high thermal conductivity rubber material and a preparation method thereof, and relates to the technical field of rubber production, the high thermal conductivity rubber material comprises a rubber matrix, modified carbon black, a vulcanizing agent, a composite accelerator, an anti-aging agent, zinc oxide, stearic acid, white carbon black, montmorillonite and aramid pulp according to a weight ratio of 100: (40-60): (1.5-3): (2-4): (1-3): (3-8): (1-3): (10-20): (5-15): (3-8); the modified carbon black is prepared by reacting a composite modifier solution prepared from a silane coupling agent, sodium alginate, ammonium polyacrylate, tea polyphenol, polyethyleneimine, nano aluminum oxide and deionized water with carbon black; the composite accelerant is prepared by carrying out pre-dispersion treatment on N-cyclohexyl-2-benzothiazole sulfenamide, tetramethylthiuram disulfide, a rare earth complex and nano zinc oxide. The prepared high-thermal-conductivity rubber material is good in mechanical property and thermal conductivity.

The invention provides a high-hardness easy-to-cut silicone rubber material as well as a preparation method and application thereof. The high-hardness easy-to-cut silicone rubber material comprises the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 25-40 parts of fumed silica, 1.5-3 parts of hydroxyl silicone oil, 0.8-1.2 parts of a cross-linking agent, 0.05-0.1 part of a platinum catalyst and 1-2 parts of a heat-resistant stabilizer. Through screening and synergistic compounding of specific components in the silicone rubber material, synergistic optimization of shore hardness and elongation at break of the silicone rubber material is realized, and the silicone rubber material is ensured to be free of cracks after being aged at 180 DEG C for 3000 hours and still has an excellent elongation at break retention rate after being aged.

The invention discloses a high-purity plasma-corrosion-resistant perfluoroether rubber material which comprises the following components in parts by mass: 100 parts of perfluoroether rubber; 10-20 parts of an organic polymer filler; 0.5-3 parts of a vulcanizing agent; and 1-4 parts of an assistant vulcanizing agent. The invention also provides a preparation method of the rubber material. The preparation method comprises the following steps: preparing a perfluoroether rubber compound and thermally vulcanizing the perfluoroether rubber. The prepared high-purity perfluoroether rubber material is excellent in high-temperature resistance, good in plasma etching resistance and extremely low in metal ion precipitation amount, and has important guiding significance on development of sealing materials.

The invention relates to the technical field of rubber materials, and relates to a rubber multi-stress aging life prediction method based on an Eyring model and a PSO algorithm, and the method comprises the steps of multi-stress aging experiment data collection, single degradation track curve modeling, reference condition and acceleration factor definition, Eyring model establishment and parameter identification, and extrapolation of life under natural use conditions. According to the method, the stability of parameter estimation is remarkably improved by introducing a two-stage parameter identification method, a parameter initial value is obtained through individual curve fitting, then a shape parameter alpha and a position parameter gamma are fixed, a rate parameter beta is identified again, and the parameter standard deviation can be reduced; the ratio of the reaction rates is introduced as an acceleration factor for parameter identification instead of directly identifying the reaction rates, so that the dimensional influence and experimental system errors are effectively eliminated, data of different batches of materials under different experimental conditions have comparability, and the engineering applicability of the model is remarkably improved; the PSO algorithm is adopted to carry out global parameter optimization, so that the prediction precision and the calculation efficiency can be effectively improved.

The invention relates to the technical field of rubber materials, in particular to a wear-resistant non-slip rubber outsole material and a preparation method of the wear-resistant non-slip rubber outsole material. The rubber material is prepared from the following components in parts by mass: 10 to 40 parts of natural rubber, 10 to 20 parts of epoxidized natural rubber, 40 to 80 parts of itaconate rubber, 10 to 60 parts of rice husk white carbon black, 5 to 20 parts of lignin, 5 to 20 parts of cellulose filler, 1 to 6 parts of coupling agent, 1 to 6 parts of dispersing agent, 0.5 to 2 parts of paraffin, 1 to 5 parts of resin, 1 to 3 parts of antioxidant, 1 to 5 parts of active agent, 0.5 to 2 parts of stearic acid, 1 to 3 parts of accelerant and 1 to 3 parts of sulfur. According to the invention, a bio-based rubber material is used as a matrix, various reinforcing fillers and processing aids from bio-based sources are used, the mechanical strength, wear resistance and slip resistance of the material are improved through a modified composite technology, and a material support is provided for green and sustainable development of shoe materials.

The invention discloses anti-shrinkage directional conductive supercritical foaming rubber and a preparation method thereof, and relates to the technical field of conductive rubber foam, raw materials comprise a rubber matrix, a modified fiber forming polymer and an auxiliary agent system, and the modified fiber forming polymer is prepared from a fiber forming polymer and a conductive filler. The preparation method comprises the following steps: extruding and granulating the fiber-forming polymer and the conductive filler to obtain modified granules, blending the modified fiber-forming polymer granules and the rubber matrix, carrying out extrusion and traction processes to obtain an in-situ fiber-forming modified rubber material, carrying out directional open milling, adding an auxiliary agent system, carrying out vulcanization molding, and foaming in a supercritical fluid to obtain the rubber foam material. The directional conductive fiber is constructed in the rubber matrix in situ, the rubber foaming material with directional conductivity and shrinkage resistance is prepared, the conductive efficiency is high, the problem that a rubber supercritical foaming material is prone to shrinkage is solved, and the rubber foaming material has the characteristics of heat insulation, light weight, high strength and the like and can be used for buffering and damping, heat insulation, electromagnetic shielding, flexible sensing and other scenes.

The invention belongs to the field of rubber, and relates to a rubber sealing ring multi-field coupling intelligent simulation optimization system which comprises a working condition and rubber material performance coupling module, a virtual assembly model construction module, a local finite element model generation module, a dynamic sealing performance simulation module, a simulation and test data calibration module and an intelligent optimization design module. According to the system, basic parameters are provided through coupling modeling of working conditions and rubber material performance, a simulation carrier is formed through virtual assembly and local finite element model construction, core performance analysis is achieved through dynamic sealing performance simulation, parameter precision is corrected by combining simulation and test calibration, and finally an optimal scheme is output through intelligent optimization design. And the whole process integration of simulation, calibration and optimization of the rubber sealing ring is realized.

The invention discloses an energy-absorbing and shock-reducing rubber material for an ocean platform and a preparation method of the energy-absorbing and shock-reducing rubber material. The rubber material is prepared from the following raw material components: a rubber matrix, a reinforcing filler, a vulcanizing aid, a vulcanizing agent, a silane coupling agent, a vulcanizing activator, an anti-aging agent, protective wax, tear-resistant resin and paraffin oil, the preparation method comprises the following steps: plastifying, preparing master batch, preparing final mixed rubber, and vulcanizing and molding. The natural rubber and butadiene styrene rubber blend is used as a matrix, the natural rubber endows the material with high elasticity, and the butadiene styrene rubber is used for improving the aging resistance of the material; the carbon black and the fumed silica are used as reinforcing fillers, and the dispersion state of the fumed silica is optimized through the silane coupling agent, so that the mechanical properties of the energy-absorbing and shock-reducing rubber material are effectively enhanced. The prepared energy-absorbing and shock-reducing rubber material for the ocean platform can effectively overcome the defects of natural rubber in the aspects of aging resistance, seawater corrosion resistance, oil resistance and chemical corrosion resistance, and meanwhile, the excellent high-damping characteristic and fatigue resistance of the natural rubber are reserved.

The utility model discloses a rat thrombus forming device which comprises a blood collecting assembly and a thrombus forming assembly, the blood collecting assembly is used for collecting blood of a rat, and the blood collected by the blood collecting assembly is conveyed to the thrombus forming assembly to prepare thrombus; the blood sampling assembly comprises a bottom plate and a top plate, the top plate is located over the bottom plate, a vertical supporting rod is connected between the center of the bottom plate and the center of the top plate, the top plate can rotate around the supporting rod, a plurality of round holes are formed in the top plate in the annular direction, and blood collecting pipes are vertically placed in the round holes; a liquid outlet is formed in the bottom of the blood collecting pipe, a blood transfer pipe is connected to the liquid outlet, and the head end of the blood transfer pipe extends to the thrombus forming assembly; the thrombus forming assembly comprises a rectangular forming groove, a forming template made of rubber is fixed to the bottom of the forming groove, pits with honeycomb holes are densely distributed in the forming template, the diameter of each pit is 2-3 mm, and the depth of each pit is 2-3 mm.

The utility model relates to a gravity pressing structure applied to an electronic guitar, which comprises a fixed plate fixedly arranged on a panel of the electronic guitar. The PCB is fixedly arranged on the fixed plate; the string plucking structure comprises a plurality of string plucking bodies, a base is arranged on the bottom surface of each string plucking body, the bases are arranged on the PCB, the bases are provided with gravity sensors, the gravity sensors are electrically connected with the PCB, and the string plucking bodies are made of soft rubber materials. When a player slightly touches, presses or strikes the string plucking body with fingers, the gravity sensor captures the process, converts the magnitude of force into a corresponding level signal, and transmits the level signal to an audio processing system of the electronic guitar through the PCB. And the system adjusts pitch, volume or timbre parameters according to the parameters, and simulates sound similar to wood guitar soft string or string striking. The string plucking body is made of a soft rubber material, so that the string plucking body can be pressed, beaten, flexibly rubbed, toggled and other skills like a traditional string, and in cooperation with the gravity sensor, sound generated when the traditional string uses the skills can be simulated.

The utility model relates to the technical field of rubber sealing ring production, and discloses a shaping device for rubber sealing ring production, which comprises a processing table, and a water storage tank is arranged at the top of the processing table; the supporting rod is arranged at the top of the machining table; and the top cover is arranged at the top of the supporting rod. The hydraulic cylinder is started, the hydraulic cylinder operates to drive the heating plate and the upper die block to move, when the upper die block is matched with the lower die block, the heating plate is started to heat the upper die block, so that a gap of a die is tightly filled with a rubber material, after the rubber material forms a required shape, the upper die block and the heating plate are recycled, and the water pump is started again. The water pump operates to suck water in the water storage tank through the water suction pipe, then the water is conveyed into the splitter plate through the water conveying pipe, and the water is sprayed out through the spray head to cool a rubber material, so that the effect of rapidly cooling the rubber sealing ring to maintain the shape and performance of the rubber sealing ring is achieved.

The present application provides a tire rubber material correction method, which uses a tire rubber material correction device. The tire rubber material correction device comprises a conveying device and a first correction plate arranged at an angle relative to the rubber material conveying direction. The tire rubber material correction method comprises: the conveying device conveys a rubber material to the first correction plate, wherein a predetermined distance is formed between an end portion of the rubber material and the first correction plate; and the conveying device drives the end portion of the rubber material to move toward the first correction plate, so that a beveled edge at the end portion of the rubber material is stopped by and abuts against the first correction plate, and the position of the end portion of the rubber material is corrected under the stopping action of the first correction plate. The present application solves the problem in the prior art that the correction effect for the head and tail of a steel-cord rubber material is poor.

The invention relates to the technical field of new energy automobile air suspensions, and particularly discloses a heat-resistant ozone-resistant air spring outer layer rubber material. The rubber material is prepared from natural rubber, chlorosulfonated polyethylene rubber, ethylene-vinyl acetate rubber, high-activity magnesium oxide, stearic acid, an anti-aging agent, microcrystalline wax, tert-butylphenol formaldehyde resin, reinforcing filler, a plasticizer, zinc oxide, a vulcanizing agent and an accelerant. The invention also discloses a preparation method of the sizing material. The heat-resistant ozone-resistant air spring outer layer rubber material disclosed by the invention has good heat resistance, cold resistance and ozone aging resistance, and also has the advantages of wide application environment range and long service life.