129 results about "Auto industry" patented technology

The invention relates to the technical field of coatings, and discloses a carbon nanotube modified acrylic resin coating and a preparation method thereof. The coating disclosed by the invention is prepared from the following raw materials in parts by weight: 100 parts by weight of a carbon nanotube modified water-based acrylic resin emulsion, 0.5 to 0.8 part by weight of a dispersing agent, 8 to 10 parts by weight of deionized water, 0.1 to 0.3 part by weight of a de-foaming agent, 5 to 7 parts by weight of a coalescing agent, 0.1 to 0.3 part by weight of a rheological agent and 0.8 to 1 part by weight of a flatting agent. A physical-chemical cross-linked network structure is formed in the coating by utilizing a long-chain structure and a dialkenyl structure contained in the functionalized carbon nano tube, and the physical-chemical cross-linked network structure and the uniformly dispersed carbon nano tube synergistically improve the mechanical property of the material, and imidazole quaternary ammonium salt and thymol structures contained in the functionalized carbon nano tube synergistically improve the antibacterial property of the material. The paint prepared by the invention has a relatively wide application value in the fields of furniture, woodware, automobile industry and the like.

The present invention relates to the field of titanium alloy materials, and specifically refers to an α+β titanium alloy with high strength and low yield ratio and a preparation method thereof. The chemical composition of the titanium alloy is Al: 5.0-7.0; V: 3.0-5.0; x: 0.1-10 (x is a eutectic β-stabilizing element such as Fe, Mn, Cr, Ni, Cu, etc.); the remainder is Ti. The preparation method of the titanium alloy is as follows: first, after keeping warm in the two-phase region for a period of time, it is rapidly cooled to room temperature to obtain a lamellar α″ martensite precursor; then the alloy with the lamellar α″ martensite precursor is cold rolled at room temperature, and the total strain is in the range of 10% to 50%. Finally, the cold-rolled plate is annealed for different times in the temperature range of 800-850°C to obtain an α+β titanium alloy with a two-stage equiaxed α phase structure. The α+β titanium alloy with high strength and low yield ratio prepared by the present invention can be widely used in important fields such as aerospace, marine engineering, petrochemical industry, automobile industry and biomedicine.

The invention discloses a bypass inductor echelon current limiting topology and method for solid-state power distribution equipment, relates to the technical field of power electronic distribution, and is suitable for solid-state power controllers in the fields of aerospace, new energy automobiles and industrial automation. In order to solve the problems that when a large capacitive load is started, a current peak is likely to be generated to damage a device, and an existing current limiting scheme is low in efficiency or large in size, the topology comprises an input circuit, a main power circuit, an auxiliary circuit, a current limiting circuit, an absorption circuit and a load side circuit. According to the method, the auxiliary circuit switch tube is turned on in an echelon mode, and the main switch tube is turned on to complete starting after load voltage approaches power supply voltage and reaches a non-voltage-difference condition. According to the planar inductor integrated PCB, the size is reduced, the problem of long-term heating of a resistor is solved, the TVS overvoltage protection and RC anti-interference design are matched, the current peak is effectively restrained, the system efficiency and reliability are improved, and the high-power-density and differential-pressure-free starting requirements are met.

The invention relates to the technical field of impellers, in particular to an integral impeller forming method and an integral impeller, and the integral impeller is manufactured through the steps of manufacturing a water-soluble core, manufacturing an impeller wax mold, removing the water-soluble core in the wax mold, manufacturing slurry of a mold shell, manufacturing the mold shell, dewaxing and cleaning, roasting and forming parts. The water-soluble core is used for supporting the inside of the wax mold, a complex internal structure is formed through an accurate molding process, the size accuracy and the surface quality of the impeller are ensured, then an integral shell is obtained through three-layer coating, alloy is poured into the shell at high temperature to be solidified to form an impeller part, the integrity of the impeller and the consistency of materials are ensured, and the service life of the impeller is prolonged. According to the method, the risk of size inaccuracy caused by secondary splicing of the impeller is effectively avoided, the precision and the quality of a casting part are greatly improved, particularly in the precision casting field such as the aerospace industry or the automobile industry, remarkable technical advantages are achieved, and the performance reliability and the service life of impeller parts are ensured.

The application relates to a dual-phase high-entropy ceramic material for high-temperature thermal barrier coatings and a preparation method thereof, in particular to a dual-phase high-entropy ceramic (La 0.2 Nd 0.2 Gd 0.2 Y 0.2 Ho 0.2 )2Zr2O7 with low thermal conductivity and high thermal expansion coefficient, which is mainly used for thermal isolation, thermal barrier coatings and other applications in high-temperature environments. The application is prepared by adopting a solid-phase reaction sintering process through accurate design of the combination of rare earth elements, forms a stable dual-phase structure, effectively inhibits grain growth through grain boundary pinning, and thus maintains a nanoscale grain structure. Meanwhile, the material can efficiently block heat transfer at high temperatures through optimization of phase proportion, and the thermal expansion characteristics are matched with a metal base layer, effectively avoiding the falling risk caused by the difference in thermal expansion of the two, and thus greatly improving the service life and reliability of the material in a high-temperature environment. The high-entropy ceramic material of the application can be widely applied to fields with high demand for high-temperature thermal isolation in aerospace, aviation, automobile industry and the like, is especially suitable for thermal barrier coatings, high-temperature thermal insulation materials and other high-temperature thermal insulation applications, and has important engineering application value.

The present application relates to a kind of flame-retardant polyamide compositions and its preparation method and application.The flame-retardant polyamide compositions, including the following weight parts of component:PA6T / 66 resin 28~70 parts, PA6I / 6T resin 5~25 parts, flame retardant 10~21 parts.The flame-retardant polyamide compositions of the present application has good stability of mechanical properties (tensile strength) in long-period heat retention injection molding, and can be applied to long-time molding cycle large product in the field of automobile industry.

The present application belongs to the field of composite materials and lithium batteries, and particularly relates to a preparation method of isotropic porous carbon material, a porous carbon reinforced nonmetal or metal composite material and a preparation method and application thereof. Liquid polyacrylonitrile oligomers are subjected to heat treatment technology under a protective atmosphere to obtain a porous carbon precursor material; the porous carbon precursor material is subjected to high-temperature graphitization enhancement technology under a protective atmosphere to obtain a porous carbon material; and quantitative pore making is performed by controlling oxygen flow under an oxygen atmosphere to obtain an isotropic porous carbon material with uniform pore structure distribution. The above-prepared isotropic porous carbon material is used as a reinforcing phase to be combined with metal or nonmetal to prepare composite materials with different properties, so as to improve the performance of the composite materials, which can be applied to lightweight high-strength structural parts in the fields of aerospace and automobile industry, and can also be used as negative electrode materials in the field of lithium batteries.

This invention provides a self-inspection control method, device, and server for vehicle production and maintenance, relating to the technical field of the automotive industry. The method includes: when the power supply to an ordered vehicle is detected to be on, connecting an information domain controller to the vehicle's manufacturing execution system (MES) based on a key sent by a vehicle networking service platform; sending vehicle information provided by the MES to the information domain controller, enabling the information domain controller to perform a self-inspection process to prevent errors in the vehicle's electronic control system; after the self-inspection of the vehicle's electronic control system passes, switching the information domain controller to production mode and using an electronic inspection program and a set of external cameras to perform a production self-inspection process on the vehicle's electronic control components and external equipment, so that the ordered vehicle can be delivered after the vehicle's production self-inspection passes. This invention can significantly improve the accuracy and efficiency of fault detection during vehicle production and maintenance.

The invention relates to a preparation method of a carbon nanotube reinforced flame-retardant polycaprolactone compound, and belongs to the field of flame-retardant polymer composite materials. The compound comprises polycaprolactone (PCL), a toughening agent (PBAT), carbon nano tube grafted polycaprolactone (CNT-g-PCL), polyphosphate and polydopamine / SiO2, as well as an antioxidant, an ultraviolet absorbent, a lubricating agent and a drop resistance agent. All the components are premixed and dried and then are subjected to melt blending in a double-screw extruder to prepare the compound, CNT-g-PCL improves the dispersity and interface bonding force of carbon nanotubes through chemical grafting, and polyphosphate and polydopamine / SiO2 achieve the flame-retardant synergistic effect. The obtained composite material has excellent mechanical property, flame retardant property and good biodegradability, and is suitable for the fields of electronic devices, aerospace, environment-friendly packaging, automobile industry and the like.

The utility model provides a backrest grid wire rod rubber sleeving device which comprises a fixing table, a mechanical arm, a three-axis moving mechanism, a moving block, a conveying mechanism, a limiting block and a cutting mechanism. The movable block arranged at the output end of the three-axis moving mechanism, the conveying mechanism used for conveying the rubber sleeve and the cutting mechanism used for cutting the rubber sleeve are arranged, the rubber sleeve penetrates into a backrest grid under the action of the three-axis moving mechanism, and the rubber sleeve arranged in the backrest grid in a sleeved mode is cut off under the action of the cutting mechanism. Then, a new rubber sleeve is conveyed again under the action of the conveying mechanism, then the three-axis moving mechanism is started, and the next rubber sleeve penetrates into the backrest grid, so that continuous rubber sleeving of the rubber sleeve is achieved; therefore, the situation that workers need to assemble the rubber sleeves at the tail ends of the backrest grids one by one is eliminated, the efficiency is improved, meanwhile, manpower is saved, and the requirement for high-speed development of the modern automobile industry is met.

This invention discloses a velvety sofa fabric and its preparation method, belonging to the field of textile fabric processing technology. This invention provides a hollow orange-petal-shaped microfiber nonwoven fabric as the base material, and a waterborne polyurethane (WPU) film as the polymer coating. Hollow orange-petal-shaped microfiber / waterborne polyurethane (PET-PA6 / WPU) synthetic leather is obtained through dry film transfer technology, achieving the green preparation of microfiber leather. Fluoropolymers, due to their low surface free energy, high chemical and thermal stability, excellent adhesion and water and oil repellency, self-cleaning properties, low refractive index, and low dielectric constant, are widely used in construction, functional coatings, electronic devices, the automotive industry, and fabric finishing. Using this finishing agent gives the sofa fabric water, oil, and stain repellency.

1. The name of the design product: endoscope (BPM-30 series). 2. The use of the design product: endoscope for detecting and analyzing the position of human eye not easy to reach, which can be applied to medical, mechanical manufacturing, petrochemical industry, aerospace, electric power construction, railway and ship, automobile industry, engineering construction, boiler pressure vessel, military reconnaissance and other special equipment inspection fields. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The invention provides a machining method for improving the yield strength and the product of high strength and elongation of a 10Mn medium manganese steel plate, and relates to the technical field of medium manganese steel. The 10Mn medium manganese steel plate with high yield strength and high product of strength and elongation is obtained through ingot casting, forging, hot rolling, warm rolling, cold rolling and tempering. The austenite grain size of the 10Mn medium manganese steel plate can reach 0.39 mu m, and the austenite content can reach 30.4%. According to the machining method, the yield strength and the product of strength and elongation of the 10Mn medium manganese steel plate can be remarkably improved under the condition that the production cost is slightly increased, the comprehensive requirements of the modern industry, especially the automobile industry, for material performance are met, and industrial production and application of medium manganese steel are promoted.

The application discloses a preparation method of a hot-dip galvanizing zinc-aluminum-magnesium plated steel plate for automobile outer plates. The method controls the uniformity of the substrate organization composition, the surface structure and the organization, strictly controls the thickness of the substrate surface oxide film and the crystallization orientation, and enhances the wettability, adhesion, reactivity and solubility between the plating solution and the steel base. The method overcomes the quality defects such as shrinkage, stripes and small particles caused by the local shrinkage of the plating solution due to the surface tension and wettability difference in the hot-dip process of the prior art. The method not only realizes the 'zero defect' of the zinc-aluminum-magnesium plated steel plate surface, but also has high surface quality, compactness and uniformity, good adhesion, excellent forming performance and coating performance, and can meet the requirements of automobile outer plates, has a wide application prospect in the automobile industry, and will produce very significant social and economic benefits.

This invention belongs to the field of polymer composite materials technology, specifically relating to a composite polymer material and its application in vehicle damping panels. The composite polymer material provided by this invention comprises SBS modified asphalt, fillers, petroleum resin, EVA, silica, silane coupling agent, SBS styrene-butadiene rubber, and plasticizers. The fillers include magnetic powder and KF. The composite polymer material provided by this invention significantly improves the consistency of the material's damping factor, thermal stability, and high and low temperature adhesion performance, ensuring strong and long-lasting magnetic force, thereby meeting the stringent requirements of the automotive industry for lightweight, high reliability, and excellent NVH performance.

The present invention relates to a polyelectrolyte complex consisting of chitosan and phytic acid, the method for producing said polyelectrolyte complex using mechanochemical synthesis and its use as an antimicrobial and antioxidant bio-fire-retardant additive for epoxy resins. Furthermore, the present invention relates to a material comprising said polyelectrolyte complex and a polymer, preferably an epoxy resin, an article coated with said flame retardant and an article having said flame retardant embedded therein. Therefore, the present invention is framed within the fireproof plastics industry with high anti-fire demands such as the automotive industry, aeronautics, construction or the electrical-electronic sector.

The invention discloses economical 650MPa-grade highly expanded steel and a production method thereof. The economical 650MPa-grade highly expanded steel mainly solves the problems that existing 650MPa-grade highly expanded steel with the thickness of 2-4mm is high in cost, and the surface quality does not meet the requirements of the automobile industry. The hot-rolled steel plate provided by the invention comprises the following chemical components in percentage by weight: 0.045%-0.065% of C, 0.08%-0.12% of Si, 1.30%-1.40% of Mn, less than 0.015% of P, less than 0.003% of S, 0.30%-0.40% of Cr, 0.015%-0.025% of Nb, 0.11%-0.13% of Ti, 0.0015%-0.0045% of Ca, more than 0.02% of Alt and the balance of Fe and inevitable impurities, and the transverse lower yield strength ReL of the hot-rolled steel plate is greater than or equal to 600MPa, the tensile strength Rm of the hot-rolled steel plate is greater than or equal to 650MPa-750MPa, the percentage elongation after fracture A50 of the hot-rolled steel plate is greater than or equal to 20%, and the The hot-rolled steel plate is mainly used for manufacturing high-strength automobile chassis steel needing flanging performance.

The invention relates to an automobile technological process development human resource investment assessment method. The method comprises the following steps: constructing an automobile process development project model, and dividing a plurality of projects; the method comprises the following steps: constructing an initial human resource input model through historical project data, inputting project information of a current project into the model, and outputting a human input man-hour calibration value; acquiring actual human input working hours of the current project through a working hour system; and comparing the actual human input man-hour of the current project with the human input man-hour calibration value, and correcting the initial human resource input model according to a comparison result to obtain an updated human resource input model. According to the method, through scientific project modeling, real-time man-hour acquisition, model dynamic correction and the like, the accuracy of human resource investment evaluation is improved, the dynamic adaptability of evaluation is enhanced, the model can be continuously optimized according to actual project conditions, and a reliable solution is provided for human resource management in the field of automobile industry process development.

The invention relates to the technical field of ethylene propylene diene monomer, and discloses an ethylene propylene diene monomer composite material for an automobile sealing strip and a preparation process of the ethylene propylene diene monomer composite material. The ethylene propylene diene monomer composite material comprises the following components in parts by weight: 55-75 parts of ethylene propylene diene monomer, 25-45 parts of ethylene-vinyl acetate copolymer, 2-8 parts of nano titanium dioxide, 0.4-1.5 parts of vinyl acetate polymer, 1-1.8 parts of vulcanizing agent and the like. A polyvinyl acetate molecular chain is grafted on the surface of the nano titanium dioxide, so that the nano titanium dioxide has good compatibility with the ethylene-vinyl acetate copolymer and the ethylene propylene diene monomer, can be uniformly dispersed in the composite material, and has a better reinforcing effect on the material; the prepared EPDM rubber composite material has excellent hardness, tensile strength, elongation at break and tear strength, and can be better applied to the automobile industry fields such as sealing strips.

This invention relates to a filtration medium, more particularly, to a filtration medium comprising at least one layer and a resin binder composition comprising a lignin modified phenolic resin such as may be used for filtering fluids in automotive, industrial and domestic applications. It also relates to a filter element comprising the filter medium, a paper, methods of preparing the filter medium and element, and use of the filter medium or element.

This invention relates to the field of titanium alloy materials, specifically to an additive manufacturing method for a high fatigue strength Ti4Mo6Zr2Fe5Cu0.25O alloy and its preparation method. The chemical composition of this titanium alloy, by weight percentage, is: Mo: 3.0–5.0; Zr: 4.0–8.0; Fe: 1.0–3.0; Cu: 3.0–7.0; O: 0.10–0.40; with the balance being Ti. The preparation method of this titanium alloy is as follows: the titanium alloy is prepared using coaxial powder-feed laser additive manufacturing technology, with a laser power between 1500 and 3100 W, a scanning rate between 700 and 1500 mm / min, and an interlayer spacing of 0.4–1.2 mm. The titanium alloy prepared by this invention possesses excellent comprehensive mechanical properties and can be widely used in many important fields such as aerospace, biomedicine, petrochemicals, automotive industry, and marine engineering.

Filters and filter media are provided that comprise at least one layer and a resin binder composition comprising a lignin modified phenolic resin such as may be used for filtering fluids in automotive, industrial and domestic applications. Also provided herein are filter elements and / or a paper that comprise the filter medium, methods of preparing the filter medium and element, and use of the filter medium or element.

The utility model provides a rotary curing oven for brake pads, and relates to the field of curing ovens. The rotating frame is arranged in the square furnace body and is used for placing the brake pad and realizing rotation; the heating assemblies are arranged on the two sides of the square furnace body and used for uniformly heating the furnace cavity; the transmission assembly is used for driving the rotating frame to rotate; and the feeding and discharging assembly is arranged on the square furnace body and used for achieving automatic feeding and discharging of the brake pads. Compared with the single structural design of a traditional curing oven, the layout mode that the square oven body is combined with the rotating frame is adopted, and the space in the oven is more fully utilized. More groups of brake pads can be accommodated in a limited occupied area for curing treatment at a time, the requirement of mass production of the brake pads under rapid development of the automobile industry is met, the brake pad curing device is particularly suitable for small and medium-sized enterprises with limited production sites, and precious production space resources are saved for the enterprises.

The utility model relates to the related technical field of metal heat treatment equipment, in particular to a cab stabilizer bar opening and closing type normalizing inductor which comprises a bottom plate, a feeding mechanism is arranged on the upper surface of the bottom plate, and an induction mechanism is arranged on the upper surface of a top plate. According to the open-close type normalizing inductor for the cab stabilizer bar, through the arrangement of the induction mechanism, when the open-close type normalizing inductor is used, an air cylinder is started to push a cover plate connected to the lower portion of the air cylinder to move up and down, the cover plate can cover the surface of an induction furnace, multiple sets of heating rods are fixedly connected to the inner side surface of the induction furnace, and the heating rods are started to generate heat through the heat effect of current; the inner side surface of the induction furnace is further fixedly connected with a plurality of sets of temperature sensors, in the heating process, the temperature sensors monitor the temperature in the induction furnace and transmit temperature data to the control panel electrically connected with the temperature sensors, the control panel can automatically regulate and control the power of the heating rods, and therefore the temperature in the induction furnace is precisely regulated and controlled, and the heating efficiency is improved. And the requirements of the automobile industry for part machining are met.

The present invention relates to a composition comprising a thermoplastic polyurethane which is the reaction product of at least one diisocyanate (II), at least one polyol composition (PC) and at least one chain extender (CE), wherein the polyol composition comprises a polyol (PA) having secondary terminal hydroxyl groups; and the composition further comprises a component (CC) selected from the group of bismuth carboxylates and zinc carboxylates, preferably from the group consisting of bismuth carboxylates. The present invention also relates to a process for the production of said composition and to the use of the composition according to the invention for the production of extruded, injection-molded and pressed articles and foams, shoe soles, cable sheaths, hoses, profiles, conveyor belts, fibers, nonwovens, films, moldings, plugs, housings, damping elements for the electrical industry, the automotive industry, mechanical engineering, 3-D printing, medicine and consumer goods, in particular for the production of injection-molded products, extruded products, films, profiles and shaped articles. The present invention also relates to a shaped article comprising the composition according to the invention.

The invention concerns a method for producing a 6xxx series aluminium sheet comprising the steps of homogenizing an ingot made from a 6XXX series aluminium alloy; cooling the homogenized ingot with a cooling rate in a range of from 150° C. / h to 2000° C. / h directly to the hot rolling starting temperature; hot rolling the ingot to a hot rolling final thickness and coiling at the hot rolling final thickness with such conditions that at least 90% recrystallization is obtained while controlling the temperatures of hot rolling, in particular the relationship between the hot rolling starting temperature and the hot rolling exit temperature and / or controlling the grain size after coiling; cold rolling to obtain a cold rolled sheet. The method of the invention is particularly helpful to make sheets for the automotive industry which combine high tensile yield strength and good formability properties suitable for cold stamping operations, as well as high surface quality.

The invention discloses a split type alloy wheel and a machining process thereof. The split type alloy wheel comprises a rim. A spoke is arranged on one side of the rim; the rim and the spoke are in butt joint through a two-step matching structure, and an inner annular welding seam and an outer annular welding seam are formed on the inner side and the outer side of the butt joint position respectively. The inner annular welding seam and the outer annular welding seam are connected through friction stir welding. By optimizing the structural design, the forming process and the full-friction-stir welding connection mode of the spoke and the rim, the lightweight level, the structural strength and the forming precision of the wheel are further improved, the strict requirements of the automobile industry for lightweight and safety are met, the advanced friction-stir welding technology is adopted to replace a traditional fusion welding mode, and the production cost is reduced. The problem that the performance of a welding joint is not uniform is solved, and the stability and consistency of the overall performance of the wheel are ensured.

The invention belongs to the technical field of automobile industry, and particularly discloses a dimming glass control method and system linked with a vehicle driving state, and the method comprises the steps: carrying out initial light transmission adjustment and secondary light transmission gear adjustment on a glass diaphragm; the system comprises a dimming glass controller, a power supply, a light intensity sensor, a chassis domain controller and glass diaphragms of all areas of a vehicle. Through cooperative work of the light intensity sensor, the chassis domain controller, the dimming glass controller and the glass diaphragms in all the areas, accurate control over the transparency of the glass diaphragms is achieved, and the light transmittance of the vehicle window can be intelligently adjusted according to the driving state of the vehicle and the environment illumination condition. When the vehicle is in a normal driving state, the light transmittance of the vehicle window is adaptive to the input value of the sunlight sensor; when the vehicle turns, the vehicle window on the corresponding side can automatically become transparent; and if the vehicle is in the backing state, the vehicle windows on the two sides automatically become transparent.

To provide a production method of a coated steel base material which is suitable for use in the automobile industry, and has a hydrogen embrittlement ratio less than 30%, and the coated steel base material.SOLUTION: A production method of a coated steel base material comprises the steps of: preparing a steel base material; forming a Ni-MoS2 film layer by electrically plating the steel base material with an electric plating solution having 2 to 6 pH and including 100 g / l to 500 g / l NiSO4 and 1 g / l to 15 g / l MoS2 by applying an electric current with current density of 15 A / dm2 to 45 A / dm2 for a period of 30 to 300 seconds; and washing the steel base material, dehydrating it, and obtaining the coated steel base material.SELECTED DRAWING: None

The invention relates to an adjustable fully compliant guide device with constant force, which enables the setting of a force operating point by changing the preload of compliant elements, an associated method for setting the device for a predetermined force, and for dimensioning the compliant elements of the guide device. The adjustable, fully compliant guide device with constant force has a wide range of applications. These include metrology, weighing technology, precision engineering, nanofabrication, biomedical engineering, sports and rehabilitation equipment, the automotive industry, and robotics.