3029 results about "Plastic materials" patented technology

The invention provides a macroscopic finite element simulation analysis method and device for a sealing element considering plastic deformation, and belongs to the field of sealing element design. The method comprises the following steps: acquiring an engineering stress-strain curve of a plastic material in a compression state; converting the engineering stress-strain curve into a real stress-strain curve; determining a yield limit, and taking a strain point corresponding to the yield limit as a demarcation point of elasticity and plastic deformation; an elastic section of a real stress-strain curve is extracted, the elastic modulus is calculated, and the Poisson's ratio is obtained through axial and transverse strain measurement in a uniaxial compression test; a true stress-strain curve plastic section is extracted, and a multi-linear isotropic hardening model is established; constructing a complete elastic-plastic constitutive model covering the elastic deformation area and the plastic deformation area; the stress distribution, the strain response and the contact performance of the plastic sealing element in a compression deformation state are simulated. According to the method and the device provided by the invention, the problem that the result does not conform to the reality due to the fact that only elastic modulus and Poisson's ratio are used in existing sealing element simulation can be solved.

A stabilizer for an aerial projectile comprises a conical portion with a first longitudinal axis, a first end of a lesser diameter, and a second end of a greater diameter. A tubular portion having a second longitudinal axis is coaxially conjoined at the first end of the conical portion. An external surface of the conical portion is engrailed or invected by a radial succession of flutes alternating with a radial succession of splines. For invected surfaces, at least a portion of any one flute from among the radial succession of flutes may comprise a planar surface. The surfaces of the flutes and splines may be longitudinally straight or may be helical surfaces. The stabilizer may be made of plastic and a portion of the plastic may be a recycled plastic material.

The invention relates to the technical field of plastic processing, and discloses an environment-friendly plastic product extrusion molding intelligent parameter control system and method, and the system comprises a data collection and fusion module, a causal association construction module, a digital twinning and virtual-real interaction verification module, an intelligent control module, a self-adaptive reconstruction module, and a man-machine interaction and visualization module. The method comprises the steps of collecting data in real time, and performing deep fusion to generate features; dynamically constructing a knowledge graph by fusing features, and synchronously updating causal topology; constructing a digital twinborn model, and performing virtual operation prediction; generating an instruction to regulate and control the microstructure; recognizing and classifying disturbances, and reconstructing a causal topology to guide strategy adjustment; the system state is displayed in real time, and operation intervention is supported. On-line microstructure data are acquired and deeply fused in real time through the data acquisition and fusion module, and a deep correlation model is constructed in combination with the microstructure guide reverse deduction unit, so that the problems of large batch difference and unstable physical properties of environment-friendly plastic materials are effectively solved.

The present subject matter discloses an integrated door assembly for a prefabricated shed constructed from modular plastic components or panels. The door assembly comprises a door panel that includes a door side panel and a door body, which are integrally formed through blow molding. The door body is connected to the door side panel via an embedded folding groove, featuring a thinner plastic material at the fold to allow for flexibility and ease of movement. Additionally, the door assembly incorporates a pivotable frame bracket that encases the edges of the hinged, rotating panels, enhancing both strength and durability.

The invention relates to the technical field of plastic material preparation, and discloses a modified bamboo fiber, a PBAT composite material and a plastic object. The modified bamboo fiber comprises bamboo fiber subjected to hot pressing treatment in water and a closed aziridine cross-linking agent loaded on the bamboo fiber, and the mass ratio of the bamboo fiber subjected to hot pressing treatment in water to the closed aziridine cross-linking agent is 100: (1-10). The PBAT composite material comprises the following components in parts by weight: PBAT and modified bamboo fibers, and the mass ratio of the PBAT to the modified bamboo fibers is 100: (20-40). The modified bamboo fiber is subjected to hot pressing treatment in water, so that the generation of volatile gas caused by high-temperature processing can be avoided when the modified bamboo fiber is applied to the plastic material, and the interface interaction with the plastic material can be improved; the closed aziridine cross-linking agent can release active groups at high temperature, and can react with active functional groups such as hydroxyl and carboxyl on the surfaces of the bamboo fibers and the surfaces of the plastic materials, so that the interface interaction between the bamboo fibers and the plastic matrix is improved, and the tensile strength of the composite material is improved.

The invention discloses a double-injection rubber-coated product assembled in a super-thick plastic part cavity structure mold and a production process of the double-injection rubber-coated product. A molten plastic material is injected into a first injection mold cavity through a first gun barrel of a double-injection injection molding machine to form a first injection molding part and a second injection molding part which are integrated; then the six-axis robot is controlled to drive the part taking and mounting tool to move to grab the insert and fix the insert to the second injection molding part, and at the moment, a closed assembly part with a cavity structure is formed between the second injection molding part and the insert; finally, a molten plastic material is injected to the outer surface of the assembly part of the second injection mold through a second gun barrel of the double-injection injection molding machine to form a third injection molding part; according to the technology, the overall weight of a solid structure product can be greatly reduced, the material use is reduced, the material cost is reduced, the product cooling time is shortened through the design of the cavity structure, the production efficiency is improved, and the product defects such as surface shrinkage marks and internal irregular cavities caused by excessive shrinkage of a plastic material in the cooling and curing process are thoroughly eradicated.

Foldable storage bins, organizers, caddies, tray, and accessories formed from corrugated plastic materials, and methods of using the same, for work-site use. The storage bins, organizers, caddies, and / or container accessories can optionally include a protective liner.

An optical imaging system includes a first lens having a negative refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. At least five of the lenses are made of a plastic material.

The invention provides a multi-stage identification plastic automatic separation and winnowing electrostatic synergistic separation system and method, and relates to the technical field of solid waste resourceful treatment. The system comprises an intelligent bag breaking and feeding module, a paving and shaping light source enhancing module, an AI identifying and stripping module, a wet material drying module, a negative pressure winnowing module, a high-voltage electrostatic deflection module and a multi-path collecting and outputting module. According to the system, automatic feeding and bag body breaking of household garbage are achieved, plastic materials capable of being recognized are spread to reduce the overlapping rate, efficient classification is conducted through the AI technology, and accurate sorting is conducted through wet drying and electric field electrostatic deflection. The plastic sorting efficiency is effectively improved, and equipment energy consumption and occupied space are reduced.

The invention relates to a prosthesis socket comprising a proximal entry opening and a distal end or a distal end region and a fastening system provided there for a prosthesis component, wherein the prosthesis socket has a frame consisting of a fiber-reinforced plastic material with at least one opening, a textile which spans the opening being fixed to the frame.

The invention discloses a single-chain nanoparticle composite reinforced and toughened plastic material and a preparation method thereof, and belongs to the technical field of polymer plastics. The reinforced and toughened plastic material is prepared from the following raw materials in parts by weight: 10 to 20 parts of polymer monomer, 0.004 to 0.005 part of initiator, 0.05 to 0.06 part of chain transfer agent, 8 to 12 parts of solvent and 0.1 to 0.2 part of functional filler, the preparation method specifically comprises the following steps: (1) weighing the raw materials; (2) uniformly mixing the raw materials, and performing nitrogen atmosphere replacement and polymerization reaction; and (3) re-precipitating, and drying in vacuum to obtain the product. The reinforced and toughened plastic material disclosed by the invention not only has excellent performance in the aspect of tensile property, but also shows excellent mechanical response under a bending-resistant load, and is suitable for engineering plastic application scenes with relatively high requirements on structural stability and use safety.

Described herein are compositions comprising a polymer / plastic carrier and potassium metabisulphite for imparting antimicrobial activity to a plastic material. Methods for making the same, and uses of the same for microbial control, are also disclosed.

The invention discloses an automobile part location degree measuring method and device, a product and a storage medium, and relates to the field of electrical digital data processing.The method comprises the steps that three-dimensional contour coordinates of a plastic surface layer are determined based on surface reflected light intensity data, and the optical path difference of laser from the plastic surface to a metal insert is calculated according to internal refracted light intensity data; calculating the depth position of the metal insert according to the optical path difference and the refractive index of the plastic material; determining the spatial position relation of the metal insert structure relative to the plastic surface layer by combining the three-dimensional contour coordinate and the depth position; calculating an actual assembly deviation value between the spatial position relation and the standard assembly position; when the actual assembly deviation value is greater than a preset first threshold value, selecting a preset laser wavelength combination according to the actual assembly deviation value; and scanning the automobile part according to the preset laser wavelength combination to obtain a location degree measurement result. By implementing the method, the measurement precision of the metal insert in the automobile part can be improved.

A battery arrangement for an at least partially electrically powered motor vehicle, including a battery box; a plurality of battery modules arranged next to one another in the battery box; a cooling plate arranged on a respective battery module with at least one coolant channel; a cover element made of a plastic material, which is arranged on the battery box so that the battery modules and the cooling plates are covered. The cover element has rib-like support portions facing the battery modules, which support the cover element on the cooling plates.

An apparatus having a first treatment module and a second treatment module, at least one of which includes a welding device for treating one or more workpieces. The apparatus has a controller arranged to: receive a real-time amplitude signal of ultrasonic vibration of at least one of the first treatment module and the second treatment module during a treatment cycle; segment the amplitude signal into a plurality of amplitude segments for the treatment cycle; monitor an amplitude value of each of the plurality of amplitude segments during the treatment cycle; operate a plurality of closed-loop control algorithms to determine a plurality of amplitude adjustment values, each of the plurality of amplitude adjustment values corresponding to a respective one of the plurality of amplitude segments; and apply each amplitude adjustment value to the corresponding respective one of the plurality of amplitude segments during the subsequent treatment cycle in real-time.

A container suitable for holding portioned food has an outer part and an inner part. The outer part is made from a material that contains cardboard and / or paper and is tray-shaped or cup-shaped, the outer part having a bottom and either a circumferential sidewall, if the outer part is cup-shaped, or has several sidewalls that rise from the bottom, if the outer part is tray-shaped. The inner part is made from a plastic material and is tray-shaped or cup-shaped. The inner part is arranged inside the outer part and has a rim that protrudes over the outer part. The inner part has at least one protruding nose arranged distanced from the rim, and the outer part has a window, wherein the nose protrudes from the inside of the outer part through the window.

A backrest for a passenger seat, in particular for a passenger seat in a bus, train and the like, includes a frame made of a metal material and an insert made of a plastic material. The insert is configured to improve the structural stiffness of the backrest.

An optical system for a vehicle disclosed in an embodiment of the invention includes a first lens, a second lens, a third lens, and a fourth lens disposed along an optical axis from an object side toward a sensor side, the first lens includes an object-side first surface and a sensor-side second surface on the optical axis, the second lens includes an object-side third surface and a sensor-side fourth surface, the third lens includes an object-side fifth surface and a sensor-side sixth surface, the fourth lens includes an object-side seventh surface and a sensor-side eighth surface, the first lens has a negative refractive power, the third lens has a positive refractive power, the fourth lens has a negative refractive power, the first lens and the fourth lens include a plastic material, and the third lens comprises a glass material.

An information handling system camera provides a 117 degree field of view with low distortion by capturing visual images through a lens having eight lens elements. The first lens element closest to the object, the third lens element and the sixth lens element each have a glass material, the remaining lens elements have a plastic material. The first two lens elements and the last lens element each have a negative refractive power and the remaining lens elements have a positive refractive power. Lens elements two and four through eight each have aspherical surfaces.

The invention belongs to the technical field of metal material science, and particularly relates to an alloy fracture toughness analysis method and system based on a nanoindentation technology, and the method comprises the following steps: S1, carrying out nanoindentation continuous rigidity test on an alloy sample by adopting a Berkovich indenter to obtain an indentation load-indentation depth curve; performing a tensile property test on the alloy sample to obtain the elongation at break and the intrinsic elastic modulus of the material; s2, linear fitting parameters are determined according to the logarithmic linear relation between the effective elastic modulus and the indentation depth; s3, calculating a critical effective elastic modulus according to a continuous damage mechanics theory; S4, calculating the critical indentation energy of the unit contact area of the target alloy through a P-h curve; and S5, calculating a fracture toughness index according to continuum mechanics and a Griffith fracture theory. The method solves the problems of low efficiency and macro-micro data disjunction of a traditional method, and provides a systematic solution for fracture toughness analysis of plastic materials including but not limited to plastic metals such as zinc alloy, aluminum alloy, magnesium alloy and the like.

A hybrid drive carrier frame includes a front rail comprising a first end, a second end, and a body extending along a transverse direction between the first and second ends. The frame comprises a first side rail extending from the first end of the front rail perpendicular to the transverse direction and a second side rail extending from the second end of the front rail perpendicular to the transverse direction and parallel to the first side rail. The first side rail is formed from a metal material and includes a locking tab extending along the transverse direction. The front and second side rails are formed from a plastic material. The front rail includes a locking channel at the first end of the front rail and the first side rail is connected to the first end of the front rail via engagement of the locking tab within the locking channel.

The invention discloses a polypropylene composite material as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The polypropylene composite material is prepared from the following components in parts by weight: 44 to 60 parts of polypropylene resin, 5 to 15 parts of ethylene-vinyl alcohol copolymer, 10 to 25 parts of modified talcum powder and 15 to 25 parts of toughening agent. The polypropylene resin, the ethylene-vinyl alcohol copolymer, the modified talcum powder, the flexibilizer and the antioxidant are compounded, the compatibility of all the components is good, the compounded material has good bonding performance with other plastic materials (such as PMMA), meanwhile, the tensile strength and impact strength of the polypropylene composite material can be effectively improved, and the service life of the polypropylene composite material is prolonged. The requirements of automobile decorative parts on the adhesive property, the rigidity and the toughness can be met.

The invention discloses a lightweight multi-fingerling and fry counting device based on computer vision and a use method thereof, and belongs to the technical field of machine vision and machinery, and the lightweight multi-fingerling and fry counting device comprises a water flow conveying device and a counting and processing device. Wherein the water flow conveying equipment is composed of a fish inlet funnel, two different water conveying pipelines, a fish fry slideway and a fish outlet, the fish inlet is funnel-shaped, water flow conveying is adopted, the inclination angle of the water flow conveying equipment can ensure that fish fries are not clamped in the fish inlet, meanwhile, the water flow is ensured to wash the fish fries into the slideway, and the water conveying pipelines are all plastic pipelines. The fish inlet funnel and the fry slideway are made of plastic materials with frosted surfaces, and are more resistant to seawater corrosion compared with metal materials. The counting and processing device is composed of a camera at the top of the device, a displayer and a computer host at the bottom, and the compatibility and real-time computing capacity of different algorithms are effectively improved. According to the invention, counting work can be carried out on different types of fish, a large amount of plastic and lightweight aluminum metal are used, and the size and the weight of equipment are obviously reduced.

The invention discloses a strong acid and alkali resistant plastic material for fume hood surface decoration and a preparation method of the strong acid and alkali resistant plastic material, belongs to the technical field of plastic material processing, and aims at solving the technical problem that in the prior art, the acid and alkali resistance and the bending modulus of a plastic material for fume hood surface decoration need to be further improved. The preparation method specifically comprises the following steps: stirring amino-modified fluorosilicone resin, paraformaldehyde and 1, 4-dioxane in a reaction kettle, dropwise adding an anacardol solution, heating the reaction kettle to 85-95 DEG C, carrying out heat preservation reaction for 6-8 hours, and carrying out post-treatment to obtain the anacardol-based benzoxazine resin. Perfluoro-modified polysiloxane benzoxazine is prepared, naphthalene-containing epoxy resin and imidazole-modified silicon carbide microspheres are compounded, in-situ catalysis synergistic curing is carried out by using filler interface imidazole, a compact organic-inorganic hybrid interpenetrating network is constructed, and the strong acid and alkali corrosion resistance and bending modulus of the material are remarkably improved.

A closure assembly for a container, comprises a spout (1, 3) and a rotational cap (2) injection moulded of plastic material. The cap comprises a top wall (2a) and a downward depending skirt (2b). The cap has two wings (5), which are integrally moulded of plastic material and extend vertically and outward in a lateral direction over a wing length in substantially opposite directions from an inner end to a tip. The wings each have a base portion, a center portion, a top portion, and opposite front and back sides. At least the center portion of each wing is connected to the skirt of the cap. The base portion and the top portion of each wing are substantially flat. The center portion of each wing comprise at least one corrugation (12, 12′, 12″) that extends along a part of the length of the wing and forms a groove on both sides of the wing, which grooves of the corrugation, as seen from a sideways view of the wing, together form an alternating waveform, e.g. a sinusoidal shape.

The utility model discloses a melt flow rate measuring device which comprises a machine base and a control device, a smelting furnace box is arranged on the machine base, a door plate is arranged on one side of the smelting furnace box, a feeding port and a discharging port are formed in the smelting furnace box, the feeding port is communicated with a charging barrel arranged in the smelting furnace box, and the discharging port is communicated with a discharging port arranged in the smelting furnace box. A discharging opening is formed in the bottom of the charging barrel, a mouth mold is arranged at the bottom of the charging barrel, a material cutting device is arranged below the discharging opening, a material disc is arranged below the material cutting device, and a pressure sensing unit is arranged below the material disc; and the weight mechanism is used for extruding the melt. And the bottom of the charging barrel adopts a replaceable conical mouth mold design, so that mouth molds with different sizes can be replaced according to the test requirements of different plastic materials, and the universality and the flexibility of the device are enhanced. In addition, the fixture is adopted, so that the charging barrel is simple and quick to fix and replace, and the testing efficiency is improved. And the charging barrel and the mouth mold are easy to detach, so that the charging barrel and the mouth mold are convenient to clean and maintain.

The invention relates to the technical field of preparation of polyurethane plastic materials, in particular to an environment-friendly high-elasticity foaming material as well as a preparation method and application thereof. The preparation method of the foaming material comprises the following steps: perfluorooctyl sulfonyl fluoride and diaminopropyl polydimethylsiloxane are subjected to a reaction, and fluorine-containing polydimethylsiloxane is obtained; the preparation method comprises the following steps: reacting 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propanohydrazide with terephthalic diisothiocyanate to obtain isothiocyanate modified hindered phenol; the isothiocyanate modified hindered phenol reacts with primary amine at the terminal position of a fluorine-containing polydimethylsiloxane molecule through an isothiocyanate group to obtain an intermediate, and the intermediate is subjected to a desulfurization reaction to obtain a modifier; the preparation method comprises the following steps: reacting diisocyanate with polyether polyol, polyester polyol and natural polyol to obtain a component A, and stirring and mixing polyether polyol, a bio-based chain extender, a modifier, a catalyst and a foaming agent to obtain a component B; stirring and mixing the component A and the component B, and foaming to obtain the environment-friendly high-elasticity foaming material.

The invention relates to the technical field of vulcanization forming, in particular to vulcanization equipment for processing and producing new plastic materials, which comprises a rack, an upper mold, a support seat, a hinge rod, a lower mold, a turnover seat and a hydraulic pump, the top end of the rack is fixedly connected with the hydraulic pump, the hydraulic pump is fixedly connected with the upper end surface of the upper mold, the upper mold is vertically and slidably mounted on the rack, and the turnover seat is fixedly mounted on the rack. The upper die is fixedly connected with the upper end of the rack, the lower die is fixedly connected with the lower end of the rack, the hinge rods are fixedly connected with the two sides of the overturning base, the hinge rods are rotationally connected with the supporting base, and the upper end face of the overturning base is in sliding fit with the lower end face of the upper die. The bottom plate can move up and down in the vertical direction, the surface of a product is separated from the inner wall of the forming die in a surface contact mode, the problems that impact force of high-speed airflow acts on the surface of the soft product, the appearance of the product is damaged due to scratching, local sinking and the like, and deformation is caused by uneven stress are solved, and the product quality is guaranteed.

A system for mechanically recycling a plastic waste stream can include first and second size reduction units, a washing system, a drying system, and an extrusion unit. The first and second size reduction units can respectively receive and shred first and second plastic waste streams to respectively produce first and second shredded plastic waste streams. The washing system (positioned downstream from the first size reduction unit) can receive and wash the first shredded plastic waste stream to produce a washed plastic material stream. The drying system (positioned downstream from the washing system) can receive and dry the washed plastic material stream to provide a dried plastic material stream. The extrusion unit (positioned downstream from the drying system and the second size reduction unit) can receive, melt, and extrude the dried plastic material stream and / or the second shredded plastic waste stream to produce a mechanically recycled plastic material.

The invention relates to the field of composite plastic materials, in particular to a bamboo fiber modified composite plastic material and a preparation method thereof. The bamboo fiber modified composite plastic material comprises the following raw materials in parts by weight: 50-70 parts of polyethylene, 20-30 parts of modified bamboo fibers, 5-10 parts of a flame retardant, 0.5-1.5 parts of a plasticizer, 1.5-3 parts of a compatilizer and 0.5-2 parts of a lubricant. The bamboo fiber modified composite plastic material has excellent anti-aging, flame-retardant, antibacterial and mechanical properties.