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131results about How to "Play a lubricating effect" patented technology

High speed stamping die with low temperature lubricating structure

InactiveCN102921818AReduce deformation or damageExtended service lifeShaping toolsStamping processLubrication
The invention provides a high speed stamping die with a low temperature lubricating structure and belongs to the technical field of dies. The invention solves the problems of bad cooling effect, bad lubricating effect and short service life of the current stamping die. The high speed stamping die with the low temperature lubricating structure comprises an upper die holder and a lower die holder, wherein a forming plate group composed of an upper die lining plate, a punch fixing plate, a discharge lining plate, a discharging plate, a lower template and a lower die lining plate is arranged between the upper die holder and the lower die holder, a forming assembly is arranged in the forming plate group, an oil gas path communicated with the forming assembly is arranged between the forming plate groups, and the inlet of the oil gas path is connected with a low temperature lubrication feeding device. The low temperature lubrication feeding device mixes and atomizes low temperature compressed air and micro-lubricating oil to form low temperature gas-liquid two-phase stream, and the low temperature gas-liquid two-phase stream is jetted to a stamping processing region through a gas channel so as to permeate the low temperature cold air to a stamping processing contact interface with oil particles atomized by the micro-lubricating oil to play a lubricating effect and effectively take away the heat generated during the stamping process.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Continuous carbon fiber-reinforced PA6 composite with high strength, high modulus, electrical conductivity and thermal conductivity, and preparation method thereof

The invention relates to a continuous carbon fiber-reinforced PA6 composite with high strength, high modulus, electrical conductivity and thermal conductivity, and a preparation method thereof. The composite comprises, by weight, (1) 100 parts of PA6 resin, (2) 0.2 to 1 part of an anti-oxidant, (3) 0.2 to 1.2 parts of a flow promoter, (4) 2 to 10 parts of a flexibilizer and (5) 1 to 5 parts of a compatilizer. The preparation method comprises the following steps: premixing the above components according to a certain ratio, carrying out melting and mixing via a double/single-screw set and then extruding the obtained mixture into a die head for flow splitting and impregnation so as to prepare the continuous carbon fiber-reinforced PA6 composite with high strength, high modulus, electrical conductivity and thermal conductivity. Compared with conventional staple carbon fiber-reinforced PA6 composites, the continuous carbon fiber-reinforced PA6 composite prepared by using a special impregnation process in the invention has greatly improved mechanical properties since the length retention rate of carbon fibers in a PA6 carrier is high or continuous and has substantially improved electrical conductivity and thermal conductivity due to a continuous network structure, so the application range of the composite is greatly broadened.
Owner:浙江胜钢新材料有限公司

Polymer solar cell with subwavelength anti-reflective structure and manufacturing method for polymer solar cell

The invention discloses a polymer solar cell with a subwavelength anti-reflective structure. The polymer solar cell comprises a cover plate, a cathode, a donor layer, an acceptor layer and an anode, wherein the donor layer is a conducting polymer layer; the subwavelength anti-reflective structure is arranged on one side of the conducting polymer layer which is close to the cathode and comprises a plurality of bulges of which the structure sizes are less than or equal to 400 nanometers*400 nanometers*400 nanometers; and by the subwavelength anti-reflective structure, the reflective action of light is weakened greatly, and light beams are constrained effectively, so that the light conversion efficiency of the polymer solar cell is improved. The invention also discloses a method for preparing the polymer solar cell with the subwavelength anti-reflective structure. High rigidity among conjugated molecular chains in a conducting polymer is reduced and the flow characteristic of the conducting polymer is improved by an ultrasound field by a processing method for ultrasound composite thermal transfer print, so that the impressing quality is higher. The method is low in processing cost and efficient in processing and has a bright application prospect, and the polymer solar cell is easy to produce industrially.
Owner:ZHEJIANG UNIV

Die for car interior part

The invention belongs to the technical field of die for car parts processing, and discloses a die for a car interior part. The die for the car interior part comprises an upper male die and a lower female die; the lower female die is provided with a support formed by a cross plate and two vertical plates; the upper male die is provided with an electromagnet and a sliding rod penetrating through thecross plate; the cross plate is provided with a drive piece; the top portion of a sliding rod is provided with a support block; the lower portion of the side wall of the support block is provided with a conducting strip; an electric lead is arranged between the conducting strip and the electromagnet; the cross plate is provided with a support frame; a communicating block is arranged between the support frame and the cross plate; an elastic piece is arranged between the top potion of the communicating block and the bottom of the support frame; the communicating block is provided with a power source; the power source is provided with a conductive needle; one end, away from the power source, of the conductive needle is connected with the side wall provided with the conducting strip of the support frame in a sliding mode; the lower female die is internally provided with a cavity; and the cavity is internally connected with an iron block in a sliding mode. The die for the car interior partsolves the problem that the interior parts are tightly attached with the lower die after impact molding to the interior parts in the prior art, leading to the difficulty of removing the car interiorparts.
Owner:CHONGQING YINSHENG MOLD

Gearbox lubricating test device and measuring device for lubricating oil injection quantity

The invention relates to a gearbox lubricating test device and a measuring device for lubricating oil injection quantity, wherein the measuring device for lubricating oil injection quantity comprisesa flow pump and a measuring device for lubricating oil which are connected together. The gearbox lubricating test device comprises a torque supplying unit and a gearbox, wherein the gearbox comprisesa gearbox housing and a shaft to be tested in the gearbox housing. The gearbox housing portion at one end of the shaft to be tested is provided with a refueling port, while the gearbox housing portionat the other end of the shaft to be tested is provided with an oil gathering port. The gearbox lubricating test device further comprises a measuring device for lubricating oil injection quantity. Thegearbox lubricating test device has the advantages that the lubricating oil injection quantity needed by all the shafts to be tested in the gearbox can be quantitatively measured; the design of an oil passage and a guide bearing oil pot in the gearbox housing can be guided accordingly. The gearbox lubricating test device has the advantages of being strong in maneuverability, accurate and reliablein test and high in efficiency. Furthermore, the gearbox lubricating test device has the advantages of being simple in structure, sturdy and durable, and easy to maintain.
Owner:SAIC MOTOR

Micro hole processing device and micro hole processing method

The invention relates to drilling processing, and provides a micro hole processing device. The micro hole processing device comprises a high speed drill, wherein the high speed drill comprises a plurality of main shafts, a plurality of chipping suction covers, an electric control system and a cooling device, each chipping suction cover is provided with a dust collection pipeline, the cooling device is provided with a plurality of liquid guiding pipes, each chipping suction cover is provided with a liquid guiding pipeline, and each liquid guiding pipe stretches into the corresponding chipping suction cover along the corresponding liquid guiding pipeline. The invention also provides a micro hole processing method. The micro hole processing device is adopted by the micro hole processing method, and the rotating speed of a drilling tool is 15-120 Krpmin, and the feed amount of the drilling tool is 0.01-0.4 m/min. According to the micro hole processing device and the micro hole processing method, provided by the invention, the high speed drill is additionally provided with the cooling device, cooling liquid is guided into the chipping suction covers through the liquid guiding pipes, cooling and lubricating effects on the drilling tool can be formed, the broken rate of the drilling tool is greatly reduced, liquid accumulation is unlikely formed on a working platform, the rotating speed and the range of the feed amount of the drilling tool are limited when a micro hole is further processed, the drilling requirement can be met, and the broken rate of the drilling tool can be further reduced.
Owner:HANS CNC SCI & TECH

Zwitter-ion and nonionic composite asphalt warm-mixing agent and preparation method thereof

The invention discloses a zwitter-ion and nonionic composite asphalt warm-mixing agent and a preparation method thereof. The zwitter-ion and nonionic composite asphalt warm-mixing agent comprises in percentage by weight: 0.1-20% of zwitter-ion components, 0.1-20% of macromolecule nonionic components, 0.1-15% of low-molecular-weight nonionic components, 0.1-3% of acid catalysts and 42-99.6% of water. The preparation method comprises the following steps: the water is added into a container in the proportion, the temperature is controlled to range from 40 DEG C to 60 DEG C, the macromolecule nonionic components are added, a mixture is stirred for 0.5-2 hours at a constant temperature and then heated to 60-80 DEG C, the low-molecular-weight nonionic components and the zwitter-ion components are added in the proportion and are respectively stirred for 0.5-1 hours, the acid catalysts are added so that a pH (potential of hydrogen) can be adjusted to be 5-7, and the composite asphalt warm-mixing agent is obtained. The zwitter-ion and nonionic composite asphalt warm-mixing agent can effectively reduce high-temperature viscosity of the asphalt, improves the anti-peeling performance of the asphalt and stone and has the advantages of good compounding performance, stable performance, easiness of collection of the raw materials, low production cost, simple and convenient preparation method, wide application range and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1

Continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material and preparation thereof

The invention relates to a continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material and a preparation thereof. The continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material comprises the components in parts by weight: (1) 100 parts of polypropylene, (2) 0.1-1 parts of an antioxidant, (3) 0.2-2 parts of a flow promoter, and (5) 1-5 parts of a compatilizer; after being premixed according to a certain proportion, the components are melted, mixed and extruded into a hanger-shaped mold head by a double/single-screw machine unit to be shunted; finally, the components enter an S-shaped mold head to sufficiently soak carbon fibers so as to prepare the continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material. Compared with the traditional carbon fiber reinforced PP composite material, the continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material provided by the invention has the advantages that the mechanical property of the continuous carbon fiber reinforced composite material prepared by using a special soaking process is greatly improved because the length retention rate of carbon fibers in a PP carrier is very high or the carbon fibers are continuous in the PP carrier; on the basis of a continuous network structure, the electricity-conductive and heat-conductive performances of the continuous carbon fiber reinforced composite material are also greatly improved.
Owner:浙江胜钢新材料有限公司

Superhard self-lubricating coating tool and preparation method thereof

The invention discloses a superhard self-lubricating coating tool and a preparation method thereof, and can be widely applied to cutting machining of dry cutting and refractory materials. A tool base material is high-speed steel, and a laminated superhard coating composed of a hard alloy layer, an aluminum oxide ceramic layer, a silicon nitride ceramic layer and a cubic boron nitride layer is arranged on the surface of a base body in sequence, a laminated coating has the self-lubricating effect; the laminated coating has the function of self-lubrication, and is prepared by adopting a plasma spraying method. The tool integrates high-speed steel, hard alloy, alumina ceramic and silicon nitride ceramic, cubic boron nitride and the laminated coating, the adding of a carbon nano pipe (CNTs) and a boron nitride nanopipe (BNHTs) improves the hardness, the wear resistance and the toughness of the coating, the whole tool not only has good toughness, but also has very high hardness and wear resistance; and in the cutting process, when the temperature is low, the graphene can have a lubricating effect, when the temperature is high, PbO, Mo and TiB2 can generate in-situ reaction to generate PbMoO4, TiO2 and B2O3 with a lubricating effect, so that the friction and abrasion of the tool in the cutting process can be reduced, and the service life of the tool is prolonged.
Owner:SOUTHEAST UNIV

Nano lubricating additive for regulating and controlling interface friction as well as preparation method and application of nano lubricating additive

The invention belongs to the technical field of functional materials and preparation thereof, and provides a nano lubricating additive for regulating and controlling interface friction, a preparation method and application, the nano lubricating additive comprises core-shell structure nanospheres formed by taking gold nanoparticles as a core and taking a temperature-sensitive polymer cross-linked network as a shell; the manufacturing method comprises the following steps that s1, reducing gold ions into gold nanoparticles, and preparing a gold nanoparticle solution; s2, synthesizing a composite microgel ball dispersion liquid by adopting a soap-free emulsion polymerization method; s3, purifying the composite microgel ball dispersion liquid synthesized in the step S2; wherein composite microgel balls are dispersed in water, are used as a hydrated lubricating additive, can respond to near-infrared light stimulation, and are used for preparing a friction force switching agent for realizing rapid switching between low friction and high friction. The nano lubricating additive prepared by adopting soap-free emulsion polymerization can respond to near-infrared light stimulation, so that rapid switching between low friction and high friction is realized, and the friction performance of microgel is remotely regulated and controlled.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Large-fluidity spread concrete and preparation method thereof

The invention provides large-fluidity spread concrete and a preparation method thereof. The concrete includes 34-39 parts of cement, 17-20 parts of a mineral additive, 110-131 parts of coarse aggregate, 82-95 parts of fine aggregate, 15-19 parts of tap water, 1.6-2 parts of an admixture, and 0.7-1 part of a compound thixotropic agent, wherein the admixture is a polycarboxylic acid high-efficiencywater reducer and an air entraining agent, and the compound thixotropic agent is starch phosphate ester, ultra-fine zeolite powder and gelatin. The starch phosphate ester, the ultra-fine zeolite powder, the gelatin, the polycarboxylic acid high-efficiency water reducer and the air entraining agent are mixed with other raw materials to make the concrete endowed with large fluidity and excellent shape retention ability. The contradiction between the fluidity and the shape retention ability of the concrete is solved, and such problems are solved that at present, concrete over-vibration is causedby the adoption of high-frequency vibration to compact the low-fluidity concrete, aggregate settlement and segregation occur and the gas content is reduced. The construction performance of the concrete is greatly improved, the service life of the concrete is greatly prolonged in engineering, the spread quality is ensured, and the concrete can be spread more smoothly and uniformly.
Owner:SHENZHEN MUNICIPAL DESIGN & RES INST +2

Shirt collar type mold machine with multi-directional core pulling mechanism and implementation method thereof

The invention discloses a shirt collar type mold machine with a multi-directional core pulling mechanism. The shirt collar type mold machine comprises a lower mold and an upper mold, wherein a slidingsleeve is a component made of stainless steel materials and is arranged inside a groove, so that sliding of a sliding block is facilitated; the sliding block is arranged inside the sliding sleeve, afixing block is fixedly arranged inside the sliding sleeve, a pull rod penetrates through the fixing block and is fixedly connected with the sliding block, a spring is fixedly arranged on the outer surface of the pull rod, and the two ends of the spring are connected with the sliding block and the fixing block respectively; and a pressing plate is lifted after forming, a first mold core drives thesliding block to move towards the two sides along the sliding sleeve in the upward moving process, the spring is compressed, a clamping ring is fixedly arranged on the inner wall of a core pulling hole, and a scraper is fixedly connected with the inner wall of the clamping ring. According to the shirt collar type mold machine, the lower end of the first mold core is wrapped by lubricating oil ofa sponge layer, then the first mold core is brought into the core pulling hole, when the first mold core passes through the scraper, the lubricating oil and burrs are scraped off by the scraper, the deburring effect is good, the lubricating oil is left in the core pulling hole, and the effect of lubricating the first mold core can be achieved conveniently.
Owner:河北万发服装纺织集团有限公司

Centralized driving type multi-pass nonferrous metal rolling mill

The invention discloses a centralized driving type multi-pass nonferrous metal rolling mill. The centralized driving type multi-pass nonferrous metal rolling mill comprises a rolling mill body, a rolling mill safety hood, a gear box and a motor, a main rotating shaft is rotationally installed in the gear box, a first transmission straight gear is fixedly arranged on the main rotating shaft in a sleeving mode, a bearing seat is fixedly installed on the inner wall of one side of the gear box, a transverse shaft is rotationally installed on one side of the bearing seat, a first bevel gear is arranged on the transverse shaft in a sleeving mode, and one end, away from the bearing seat, of the transverse shaft is fixedly sleeved with a second transmission straight gear. The centralized driving type multi-pass nonferrous metal rolling mill is reasonable in design and good in practicability, effective purifying and cooling can be carried out on lubricating oil in the gear box, the lubricatingoil is evenly sprayed to the plurality of gears in the gear box by utilizing reciprocating left-right swing of a plurality of spray heads, and therefore the lubricating effect on the plurality of gears is improved, abrasion between the gears is reduced, the service life of the plurality of gears in the gear box can be prolonged, the replacement frequency of the lubricating oil can be reduced, theservice life of the lubricating oil can be prolonged, and the economic cost is reduced.
Owner:ZHEJIANG CHUANBOZHE METAL DECOUATION MATERIAL CO LTD

Hydraulic valve valve rod preventing clamping stagnation

The invention discloses a hydraulic valve valve rod preventing clamping stagnation. The hydraulic valve valve rod preventing clamping stagnation comprises a valve rod. The left edge of the valve rod is fixedly provided with a flat connection body. An annular groove is arranged outside the valve rod. The valve rod is provided with a first through groove, a second through groove and a third throughgroove. A through hole located on the outer portion of the valve rod is arranged on the right side of the third through groove. An inclined hole is arranged on the right side face of the third throughgroove. A first throttling groove is arranged on the right side of the second through groove. The surface of the valve rod is plated with hard chromium, and then the hardness of the valve rod is improved. The inclined hole and the through hole formed on the valve rod enable lubricating oil to permeate the surface of the valve rod during movement, and a lubricating effect is achieved. A connectionhole and a connection hole A can conduct external connection. The arranged annular groove can store dirt in the motion process, and the first throttling groove, a second throttling groove and a thirdthrottling groove achieve the buffering function when the valve rod moves. The hydraulic valve valve rod preventing clamping stagnation can effectively solve the clamping stagnation problem of the valve rod and has the features of being convenient and practical.
Owner:唐万刚
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