83results about How to "Performance improvements and enhancements" patented technology

The invention discloses silicon-containing double-curing group resin and a preparation method thereof. Two preparation methods can be applied in the invention. The first preparation method comprises the following steps of: synthesizing acrylic epoxy monoester firstly; reacting hydroxyl silicone oil, diisocyanate and hydroxyl acrylic resin to obtain urethane acrylate with an NCO functional group at one end; and reacting two kinds of resin together to obtain silicon-containing urethane acrylate-modified epoxy monoester; and the second preparation method comprises the following steps of: synthesizing the acrylic epoxy monoester firstly; reacting dihydric alcohol, the diisocyanate and the hydroxyl acrylic resin to obtain the urethane acrylate with the NCO functional group at one end; reacting two kinds of resin together and then reacting the mixture with amino silicone oil to obtain the silicon-containing double-curing group resin. According to the invention, groups with two different curing modes are contained in the same resin molecule and the problem of compatibility of resin in different resin compounding, mixing and curing systems is solved; and on the other hand, a urethane acrylate-modified flexible chain and an organic silicon chain segment are modified so as to improve the performance of the resin.

The present invention is a simple production process of hard phase strengthened metal-base composite material with high efficiency, low power consumption and easy-to-control product quality. After the base metal is smelted or the metal grain is smelted in a crystallizer, the smelted metal and strengthening hard phase material are fast crystallized through electromagnetic field stirring and supersonic vibration inside a water cooled crystallizer to form the produce. Thus formed composite material has two homogeneous mixed and well combined phase, large regulatar system region, fine crystal structure and improved and consistent performance.

The invention discloses a comprehensive mechanical stone drift digging anchor machine, which aims at solving the problems that in the traditional comprehensive mechanical stone drift digging anchor machine, the cutting ability is lower, the installation position of a top anchor rod anchor rope drilling machine is inappropriate, the whole stability of a device during the running is worse, and the like. The comprehensive mechanical stone drift digging anchor machine comprises a shovel board part, a crawler belt running part, a rack, a rotating part, a belt transporting part, a telescopic cutting part, a hydraulic drilling machine device, an advance supporting device, a top board supporting device, a bottom board supporting device, a hydraulic control system and an electrical control system, and is characterized in that the hydraulic drilling machine device is fixedly arranged at two side surfaces of a telescopic height adjusting rack of the telescopic cutting part, each side of the hydraulic drilling machine device comprises a group of top anchor rod anchor rope drilling machines, the top board supporting device is positioned at the middle part of a machine body, and the bottom board supporting device is positioned at the tail part of the machine body. By using a cutting device driven by a permanent magnet motor or a conventional cutting head, the cutting ability, the working efficiency and the whole stability of the device can be further increased.

The invention discloses a polycrystalline diamond compact with excellent electric conductivity and a method for manufacturing the polycrystalline diamond compact. The polycrystalline diamond compact is characterized in that polycrystalline diamond layers of the compact comprise 75-85% of diamond micro-powder, 12-20% of hard alloy powder and 3-5% of nano-metal bonding agents, and the diamond micro-powder includes 60-70% of diamond micro-powder without boron and 30-40% of diamond micro-powder with boron; the hard alloy powder comprises 85-90% of WC powder, 8-12% of Co powder, 1.5-2% of Ti powder and 0.5-1% of TaC powder. The polycrystalline diamond compact and the method have the advantages that the shortcoming that the electric conductivity and the heat-resistance of a polycrystalline diamond compact manufactured in the prior art cannot be simultaneously taken into consideration can be overcome by the aid of conductive and heat-resistant materials such as the boron and tungsten carbide in formulas of the polycrystalline diamond layers, the polycrystalline diamond compact manufactured by the aid of the method is excellent in electric conductivity and heat-resistance simultaneously as compared with the polycrystalline diamond compact manufactured in the prior art, and discharge, welding machining and service requirements on the compact can be met; the method for manufacturing the polycrystalline diamond compact is simple in technology and high in operability, and the polycrystalline diamond compact can be conveniently manufactured by the aid of the method.

The invention discloses a parallel magnetic resonance image reconstruction method based on regularization iteration. The method comprises the following steps: firstly, all K spatial data are subjected to simulation sampling, multi-channel parallel coil K spatial center self-calibration ACS row data and undersampled K spatial data are obtained, and spatial sensitivity distribution of each coil and an aliasing image of each coil are calculated respectively; secondly, a reconstruction image is subjected to equation description combined with a least square method theory, based on image domain method during the calculation process of the aliasing images, a regularization method is introduced, an optimal regularization parameter is calculated and obtained by utilization of an L-curve method, and a matrix equation after regularization is obtained; thirdly, the matrix equation after regularization is subjected to iteration reconstruction by utilization of a conjugate gradient iterative method, and a reconstruction image of each coil is obtained. The method can reduce interference of noise to a reconstruction result further, and has characteristics of high signal to noise ratio, few errors, good imaging effects and the like.

The invention discloses a high-speed rail wheel and a hot-extrusion integrated forming method thereof. The high-speed rail wheel is made of bi-component metal steel, and is composed of a wheel flange part, a wheel rim part, a wheel tread part, a wheel hub part and a wheel spoke part, wherein the wheel flange part, the wheel rim part and the wheel tread part are made of low alloy steel; the wheel hub part and the wheel spoke part are made of medium carbon steel. According to the high-speed rail wheel, not only are the toughness and plasticity of the medium carbon steel part essentially invariable, but also the strength and hardness of the low alloy steel area are obviously improved, and the abrasion resistance and contact fatigue resistance are increased. In the machining process, hot-extrusion integrated forging forming is performed on double metal steel by three hydraulic machines; the technological steps of preparing, heating, blank preforming by a first hydraulic machine, blank forming by a second hydraulic machine, forming modification by a third hydraulic machine, finished product inspection and warehousing are performed, so that the high-efficient, fast and reliable hot-extrusion machining process is realized, the finished product rate is high, and the performance is stable and reliable; the high-speed rail wheel is especially widely applied to high-speed rails for a long term.

The invention relates to a porous aluminum current collector capable of suppressing sodium dendritic crystal. Porous aluminum adopts a tightly arranged three-dimensional porous structure, with the thickness of 1nm-3,000[mu]m and hole channel dimension of 1nm-1,000[mu]m; and the porous structure current collector has the hole density of 10-106meshes. The porous structure current collector is prepared through a chemical etching method, an electrochemical dealloying method, an electrochemical deposition method or a metal sintering method. Compared with the conventional current collector of copper, iron, titanium, nickel and the like, aluminum is lighter in mass, so that light weight of the battery can be facilitated; particularly, by virtue of the special structure of porous aluminum, more active sites can be provided for metal sodium deposition, thereby enabling metal ion distribution to be more uniform; meanwhile, through the hole channel structure with densely-distributed porous aluminum, volume change of metal sodium in the deposition and dissolution process can be relieved through a domain limiting effect; and when the porous aluminum current collector is applied to a sodium airbattery, a sodium-sodium vanadium phosphate battery and a ''sodium-free'' sodium-titanium disulfide battery, the performance is obviously improved and enhanced.

The invention relates to a preparation method for a bacterial cellulose graphene paper loaded nickel hydroxide flexible electrode and an application thereof, and relates to a preparation method for a flexible electrode material and an application thereof, aiming to solve the problem that a conducing film material prepared by an existing method has low specific capacitance and poor rate capability and mechanical property. The preparation method comprises the steps of preparing a bacterial cellulose sizing agent; and preparing bacterial cellulose graphene paper, preparing a reaction solution containing nickel salt, and soaking the bacterial cellulose graphene paper in the reaction solution containing the nickel salt to prepare the bacterial cellulose graphene paper loaded nickel hydroxide flexible electrode. The bacterial cellulose graphene paper loaded nickel hydroxide flexible electrode is applied to a supercapacitor. The electrode active material has high specific capacitance, high multiplying power, and good flexible electrode mechanical property, and the supercapacitor prepared by the electrode active material has good capacitive performance. The preparation method belongs to the technical field of nano materials.

This invention discloses a multi-pass search method and a device, which utilizes the current phase of the output peak values and multi-path historical phase information being selected demodulation after searching peak values to delayed power spectrum of received signals to judge the match of phases and smoothly filters between the current power values of the peak values and historical power values of the being selected demodulation to demodulate the multi-path judgment and distribution by the updated being selected demodulated power value.

The invention discloses a sack-duster pulse blowing test device and a test method thereof. The test device comprises an air compressor, an electric control case, an air storage jar, an air filter, a pulse valve, a pulse controller, an air sack and a blowing pipe provided with a plurality of blowing nozzles. The pulse valve, the blowing pipe and the air sack are fixed on a tubesheet box after the assembly. One side of the tubesheet box is provided with a plurality of target cloth sacks which respectively correspond to the plurality of blowing nozzles. The target cloth sacks provided with clothsack frames are supported by a bracket. The target cloth sacks, the air sack and the blowing pipe are provided with meters which are respectively connected with a data collector by conductive wires. The test method of the test device is as follows: the data collector collects data from the meters and obtains performance parameters of the blowing pipe so as to create a sack-duster pulse blowing database; and by means of optimum combination of pulse blowing parameters, a favorable condition is created for studying, designing and improving a pulse cleaning system of a pulse sack-duster.

The invention belongs to a preparation method of a wide absorption organic solar energy cell material based on phthalocyanine. The solar energy cell material prepared by the invention is a micromolecular compound, which contains metal phthalocyanine rings, is connected with peripheral photolytic active groups, has large steric hindrance and can inhibit phthalocyanine accumulation on a certain degree. Different blocks in a molecule correspond to different absorptions, so as to realize phthalocyanine wide absorption; steric hindrance of the phthalocyanine peripheral substituent groups are utilized to inhibit aggregation of phthalocyanine rings, so as to obtain phthalocyanine based dissoluble micromolecular solar energy cell material with a wide absorption spectrum and no accumulation. A yield of the organic-functionalized non-aggregated phthalocyanine is higher than 51%; and various materials have wide UV visible absorption and are easily dissoluble in ordinary organic solvent; HOMO and LUMO energy levels of the synthesized phthalocyanine are coupled with that of common electron acceptors (PC61BM/PC71BM), so as to improve and enhance performances of a phthalocyanine based photovoltaic device.

The invention provides a dental material with nanometer fluoric high-fortified resin and making method in light cured resin dental material and powder dispersing method technological field, wherein the resin dental material comprises the following parts: methacrylate ester integral, initiating agent and mineral filler, and the mineral filler comprises CaO-SiO2-Al2O3-P2O5-F silicofluoride fluorosilicate biological ceramic powder. The making method relates to technologies of the biological ceramic powder and nanometer silicon powder through silanization treatment and the nanometer silicon powder being ultrasonically dispersed in organic medium. The invention has biological activity with antibacterial and anti-dental cavity, which gets ideal effects on properties of resisting radioactivity, degree of transparency, tensile strength, abrasion-resistance, density, rheological property and so on.

The invention discloses a mechanical loading type packer rubber sleeve simulation loading sealing experiment device and method. A loading system comprises a base, a supporting element and a driving mechanism. A pressurizing system comprises a central pipe and a sleeve, and a pressure bearing table is arranged in the center of the upper surface of the base. The lower end of the supporting element is fixed to the center of the pressure bearing table, the supporting element is sleeved with a rubber cylinder assembly, the bottom end face of the rubber cylinder assembly is pressed on the pressure bearing table, the rubber cylinder assembly and the pressure bearing table are contained in an inner cavity of the sleeve through the sleeve, the bottom end of the sleeve is fixed to the base, and thelower end face of the central pipe enters the sleeve and is pressed on the rubber cylinder assembly. A heating system is arranged on the periphery of the sleeve. Contact stress distribution of the rubber sleeve under different working conditions can be measured, and the sealing performance of the rubber sleeve can be tested. The problems that an existing packer rubber sleeve test device is inaccurate in load application and can only measure contact pressure are solved.

The invention discloses a slag fine grinding system. The slag fine grinding system comprises a grinding box, the bottom of the grinding box is supported on the ground by a plurality of supporting columns, a clinker grinding disc and a slag grinding disc are arranged inside the grinding box from top to bottom sequentially, the clinker grinding disc and the slag grinding disc separate the interior of the grinding box into a cement clinker grinding chamber, a slag grinding chamber and a stirring chamber from top to bottom sequentially, the clinker grinding disc is suspended at the inner top of the grinding box through a clinker driving device, the slag grinding disc is supported inside the grinding box through a linkage driving device, a plurality of rolling rollers are transversely arrangedon the top surfaces of the slag grinding disc and the clinker grinding disc, and a stirring mechanism used for stirring cement clinkers and slags is arranged in the stirring chamber. According to theslag fine grinding system, an adopted grinding mode is characterized in separately rolling the materials in different chambers to get powders and then stirring and mixing as a whole, the problem thatthe grindability of the slags and the cement clinkers is greatly different in the past is solved, and the high specific surface area and the fineness of the slags and the clinkers after grinding are greatly improved.

The invention discloses a high-iron hypereutectic aluminum-silicon alloy and a preparation method thereof and relates to the field of aluminum-silicon alloy materials. The high-iron hypereutectic aluminum-silicon alloy comprises the following components, by weight, of 15% of silicon, 3% of iron, 1.8% of manganese, 0-3% of copper, 0-0.5% of magnesium, 0-0.045% of phosphorus and the balance aluminum. According to the preparation method of the high-iron hypereutectic aluminum-silicon alloy, intermediate alloys are melted firstly, then the intermediate alloys are melted together in proportion, and finally through the heat treatment process, the alloy with the tensile strength being much higher than the strength of an Al-15wt.% Si comparison specimen is obtained. The hardness is greatly improved compared with the hardness before strengthening deterioration, the average hardness of 87.2 HB can be obtained, and the uniformity of alloy materials is also good, so that the high-iron aluminum-silicon alloy with the mechanical property being close to or even better than that of an aluminum-silicon alloy without iron or with low-content iron is obtained, and important effects and significance are achieved for changing the current situation that an aluminum alloy with the iron content exceeding the standard is difficult to recycle.

The invention belongs to the field of a high polymer material, and particularly relates to a polypropylene modified material for waste household appliances and a preparation method thereof. The modified material is prepared from the following materials in parts by weight through melt blending; the materials include waste and old polypropylene graft, phenolic resin and antioxidants 1010, wherein the waste and old polypropylene graft is prepared from polypropylene for waste household appliances, organic peroxides, epoxy functional monomers and styrene through melt blending; the mass of all raw materials of the waste and old polypropylene graft is not zero. The polypropylene modified material for waste household appliances provided by the invention has good mechanical performance; experiments show that the tensile strength of the polypropylene modified material for waste household appliances provided by the invention is higher than 22MPa; the notch impact strength is higher than 4KJ/m<2>; the melt mass flow rate is lower than 12g/10 min.

The invention relates to an environment-friendly fluorine-contained water-based defoaming wetting agent and a preparation method thereof. The environment-friendly fluorine-contained water-based defoaming wetting agent is prepared from the following raw materials by mass percent: 10%-20% of natural fatty alcohol, 10%-20% of higher fatty alcohol, 1%-2% of an emulgator I, 2%-5% of an emulgator II, 1%-3% of a fluorine monomer, 2%-5% of siloxane, 5%-10% of silicon dioxide, 1%-2% of an antifreezing agent and 45%-60% of deionized water. The environment-friendly fluorine-contained water-based defoaming wetting agent is capable of, through rigorous raw material selection, and cooperating with an optimized synthetic mode, introducing a perfluor group to change a polymer structure, greatly improvinguniversality, weather resistance, pollution tolerance, high anti-corrosion and self-cleaning property of a product, and extensive in application prospect. The provided fluorine-contained water-based defoaming wetting agent is polymerized and prepared by the non-toxic harmless raw materials, and the product is green and environmentally friendly, and does not contain volatile matters, such as formaldehyde and a VOC, harmful to the environment.

The invention provides a terahertz communication system based on an RS/LDPC encoding technology, which comprises a transmitting end and a receiving end, wherein the transmitting end is used for transmitting a complete data frame comprising an encoding data packet according to a communication transmission protocol, and the encoding data packet is encoded through an RS/LDPC encoding mode and is composed of data bits and parity bits; and the receiving end is used for receiving the complete data frame, analyzing the complete data frame and extracting and recovering original data from the encoding data packet according to an RS/LDPC decoding algorithm. Compared with a terahertz communication system with no channel encoding technology, the terahertz communication system based on the RS/LDPC encoding technology provided by the invention gets several times performance enhancement, the transmission rate can reach more than Gbps, and the communication distance is significantly enhanced. Besides, the excellent encoding mode such as an LDPC code can significantly resist fading of the channel, the bit error rate is reduced, and the comprehensive performance of the system is improved. The system of the invention has a simple structure, can greatly improve and enhance the performance of the terahertz communication system, and has broad application prospects in the field of the terahertz communication technology.

The embodiment of the invention provides an aqueous environmentally-friendly nano-copolymer multifunctional defoamer and a preparation method thereof. The raw materials of the defoamer comprise, by mass, 20-26% of a natural vegetable fatty alcohol, 10-15% of a higher fatty alcohol, 5-10% of an amide, 5-8% of a nano-hydrophobic agent, 0.5-1% of a fluorine monomer, 3-6% of a silane, 2-5% of an initiator, 1-2% of an active polymerization agent, 0.5-1% of a catalyst, 1-2% of a thickener, 1-2% of an antifreeze agent and 30-45% of deionized water. The defoamer provided by the embodiment of the invention is prepared by raw material selection and a copolymerization synthesis mode, a nano-material group is introduced to change the polymer structure, and harmful substances such as a conventional emulsifier, formaldehyde and silicone oil are not used, so the versatility, the weather resistance, the stain resistance, the high corrosion resistance and the auto-cleaning property are improved. The product can be decomposed by hydrolysis, photodegradation and biodegradation without causing cumulative effects, so the product is very safe to water sources and the environment.

The embodiment of the invention discloses a shoe material for a luminous EVA shoe sole. The shoe material is prepared from, by weight, 50-70 parts of ethylene-vinyl acetate copolymer resin, 8-12 partsof an ethylene-octene block copolymer, 10-30 parts of a polyolefin elastomer, 2-10 parts of an ethylene propylene diene monomer, 10-20 parts of noctilucent powder, 0.6-1 part of a bridging agent, 0.2-0.5 part of a lubricant, 2-5 parts of a flowing agent, 5-10 parts of a filler, 5-7 parts of an abrasion-resistant agent, 0.2-0.5 part of a catalyst and 3-6 parts of a foaming agent. A preparation method of the shoe material comprises the steps of firstly, fully and evenly mixing the ethylene-vinyl acetate copolymer resin and the polyolefin elastomer, sequentially adding the ethylene-octene blockcopolymer, the ethylene propylene diene monomer, the abrasion-resistant agent, the filler, the noctilucent powder, the bridging agent, the foaming agent, the lubricant, the flowing agent, the catalystand the foaming agent, then executing full and even mixing, and making the mixture pass through a material preparing machine and an ejector to complete preparation. The material can automatically absorb a light source to emit light, is environmentally friendly, resistant to abrasion and light in weight, has a good elastic effect and can naturally emit light to achieve a warning protection effectwhen the light is dim.

The invention discloses a signal monitoring and optimizing method and system and provides a wireless network structure assessment technology based on high-precision service channel timeslot frequency sweeping. The number of road overlapping and covering frequency points, road receiving indexes and road frequency share density values are obtained through accurate calculation, the comprehensive performance of a wireless network structure can be objectively reflected, subjectivity, inaccuracy and uncertainty in equivalent TCH frequency point measuring of basic traditional BCCH frequency point frequency sweeping measurement are overcome, and therefore monitoring and managing can be accurately performed on a communication signal. In addition, warning and reasonable optimizing and adjusting are performed according to the practical conditions of the signal, and the overall performance of a honeycomb wireless network is fundamentally improved and increased. Further, the comprehensive performance of the wireless network can be objectively and accurately assessed, a key cell and a key frequency point utilizing carrier timeslot grade measuring to perform accurate positioning and cause wireless network problems provide scientific and accurate measuring and analyzing means for adjusting and optimizing the wireless network structure.

The invention discloses an optimizing method for a transmission mechanism of a toggle rod servo press. The toggle rod servo press comprises a servo motor, a rack, an upper connecting rod, a lower connecting rod, a crank, a triangular rod piece and a sliding block. A drive output shaft of the servo motor is connected with one end of the crank, and the other end of the crank is connected with one top point of the triangular rod piece. The other two top points of the triangular rod piece are connected with the lower end of the upper connecting rod and the upper end of the lower connecting rod correspondingly. The upper end of the upper connecting rod is connected with the rack, and the lower end of the lower connecting rod is connected with the sliding block. In the triangular rod piece, a rod piece body connecting the crank with the upper connecting rod serves as an upper rod, a rod piece body connecting the crank with the lower connecting rod serves as a lower rod, a rod piece body connecting the upper connecting rod with the lower connecting rod serves as a bottom rod, and the lengths of the crank, the upper rod, the lower rod, the bottom rod, the upper connecting rod and the lower connecting rod are L1, L2, L3, L4, L5 and L6 correspondingly. The optimizing method comprises the first step of optimization scheme determining, the second step of optimization of the rod length L2 of the upper rod and the rod length L4 of the lower rod, and the third step of example verification passing.