538results about How to "Satisfy the use effect" patented technology

A method for distributing uplink resource includes calculating collision rate of specific uplink message current frame sent from multiple user device by base station, judging whether calculated out collision rate is in scope of set threshold or not, regulating uplink time slot and sending-backspace window occupied by next frame specific uplink information and sending information of regulated time slot and sending-backspace window to user device through downlink message at next frame as well as sending out specific uplink message by user device in next frame through regulated time slot and sending-backspace if it is not.

The invention relates to an emulsified SBS polymer modified asphalt and preparation method thereof. At present, emulsification and emulsified modified asphalt applied to surfacing is hard to produce and not stable in quality, high temperature performance improvement is not obvious. The raw materials of the invention are matrix asphalt, water, SBS asphalt modifier, compound asphalt emulsifier, emulsification stabilizer and hydrochloric acid; firstly the matrix asphalt is heated, added with SBS asphalt modifier and then stirred to be swelled, high speed grinding by colloid grinder and full dispersion are carried out, and heat preservation growth is carried out to obtain SBS modified asphalt; compound asphalt emulsifier is added into water, emulsification stabilizer smoothened by water in advance is added, and appropriate hydrochloric acid is added to adjust pH value, so as to obtain liquid soap; and finally the SBS modified asphalt is subject to temperature reduction and then mixed with the liquid soap and emulsification dispersion is carried out, thus obtaining emulsified SBS polymer modified asphalt. The invention is applicable to coat tacking, coat sealing, surface treatment, slurry sealing and asphalt pavement recycling, asphalt wet-mixing of road construction and cerement asphalt mortar layer of passenger special line plate type unballasted track.

The invention relates to a braking-free brick mainly prepared from polyaluminum chloride waste residues and red mud and a preparation method thereof. Raw materials for preparing the braking-free brick comprise the red mud, the polyaluminum chloride waste residues, an active mineral material, lime and gypsum. The preparation method comprises the following steps: uniformly mixing the raw materials in proportion, adding 8-12 parts of water, stirring, mixing, carrying out compression molding, sprinkling water and curing. The preparation method has the advantages that the red mud and the PAC (polyaluminum chloride) waste residue are used as the main raw materials, pulverized fuel ash, cement, the lime and the gypsum are added, so that the using amount of an excitant is reduced, the strength of the brick is improved, the usability of the braking-free brick can be improved, meanwhile the national standard requirements are completely satisfied, a gel material does not need to be added in a production process, the heat energy does not need to be consumed, the accumulation of the red mud and the PAC is reduced in a larger sense, and the pollution to environments due to the emission of the red mud and the PAC waste residues is solved.

The invention provides a hot stamping forming method of a lightweight aluminum alloy vehicle body component. An original T6-state aluminum alloy board blank is placed in a heating device, the temperature rises to be within the temperature range of 50 to 300 DEG C below the solid solution temperature, heating heat preservation is carried out for 1 to 5 minutes, then, the blank is rapidly transferred to a stamping mold to be subject to hot stamping forming and mold inner pressure maintaining quenching, and a formed part is obtained. The adopted blank is T6-state aluminum alloy, the subsequent solution aging heat treatment strengthening adopted in the traditional stamping process is not needed, the hot forming production period is shortened, production efficiency is greatly improved, and product use performance can be ensured.

The invention discloses a multi-laser polishing and reinforcing method for surfaces of additive manufacturing metal parts, and the polishing on the surfaces of the additive manufacturing metal parts can be realized by repeatedly scanning and processing the surfaces of the additive manufacturing metal parts through utilizing millisecond pulse laser and nanosecond pulse laser; during the multi-laser scanning polishing process, the additive manufacturing metal parts are subjected to thermal preservation treatment, so that the stress on the surfaces of the additive manufacturing metal parts can be evenly distributed; laser scanning reinforcement is carried out on the surfaces of the laser-polished additive manufacturing metal parts, so that the stress state on the surfaces of the additive manufacturing metal parts can be changed into pressure stress from tensile stress, the anti-fatigue property of the additive manufacturing metal parts can be enhanced, and the usage performance of the metal parts can be met; compared with a manual polishing method, the multi-laser polishing and reinforcement efficiency of the additive manufacturing metal parts is high and is as 20 times as that of the manual polishing, the non-contact rapid polishing of the additive manufacturing metal parts can be realized, the tensile stress, caused by the laser polishing, of the additive manufacturing metal parts can be eliminated, and the anti-fatigue property of the additive manufacturing metal parts can be enhanced.

The invention relates to a cold spinning one-step coaxial multi-wedge type belt pulley which comprises a rim, a spoke and a hub, wherein the rim is provided with a plurality of multi-wedge type V-shaped grooves, effective diameter center of each V-shaped groove is concentric with axle hole center of the hub, each V-shaped groove is in bilateral symmetry, and the centre line of each V-shaped groove is vertical to the centre axle line of the hub, annular grooves are arranged among the rim, the spoke and the hub, the spoke is provided with a plurality of arc grooves, and the rim, the spoke and the hub are integrally formed on a spinning machine by using a steel plate in a cold spinning way. The cold spinning one-step coaxial multi-wedge type belt pulley has good softness of a flat belt pulley and large drive power of a V-shaped belt pulley, can absorb impaction and vibration, and is quieter than that of chain and gear drive with little noise. The invention also provides a fabricating method and fabricating equipment of the product.

The invention relates to a fluorescent powder color wheel base plate with demarcation structures and a manufacturing method of the fluorescent powder color wheel base plate. The manufacturing method comprises the steps that firstly, the base plate is machined, the base plate generates certain deformation, demarcation is conducted, and the demarcation structures which are convex or concave relative to a datum plane are formed at the demarcation positions; meanwhile, protrusion layers which are in a required shape and have a certain height and width are formed in advance in required color section areas on the base plate through adhesives, and accurate demarcation and accurate control are conducted in the process of follow-up manufacturing of fluorescent powder color sections; then, multiple fluorescent powder color sections are manufactured through printing, adhesive dispensing, spaying and the like, and finally a needed multi-color-section fluorescent powder color wheel is manufactured. The fluorescent powder color wheel base plate with the demarcation structures has the advantages that the important parameters such as the relative positions, the required shape (the width, the thickness, the flatness, the angle, the gap and the like), and evenness of fluorescent powder sheet layers on the fluorescence powder color wheel base plate can be more accurately controlled, control over the demarcation of the fluorescent powder sheet layers is guaranteed, the requirement for the performance of the fluorescent powder sheet layers is met, and therefore the accuracy, the efficiency and the quality of the fluorescence powder sheet layers in the forming process are greatly improved.

The invention relates to a laser synthesis preparation method of intermetallic compound and granule reinforced composite material which includes, using the powder stock containing the same elements with the intermetallic compound to be prepared, adding additionally elements during the process of sedimentation and mixing, forming local molten pool on the base material surface through high power laser irradiation, feeding the mixed powder into molten pool, stacking up to obtain large area coating, block material or formed parts, adjusting powder components or laser technique to obtain intermetallic compound or particle reinforcement intermetallic composite material with dissimilar compositions, structure and property.

The invention discloses a machining method of a high-abrasion resistance valve core. The method comprises a material preparing step, a turning step, a heat treatment step, a clinching step, a grinding step, a clinching step, a surface treatment step, a grinding step, a clinching step and the like. The valve core machined by the method is abrasion resistant, light in weight and stable in quality, and can meet the using performance of a precise control valve.

The invention discloses a preparation method of modified asphalt. The modified asphalt is produced by asphalt and an undersaturation double bond compound which are reacted under the action of an evocating agent; the method comprises the following steps: firstly, the asphalt is put into a reaction kettle; the evocating agent is added into the reaction kettle; the weight of the evocating agent is 0.05-1 percent of the weight of the asphalt; the undersaturation double bond compound with the weight of 1-10 percent of that of the asphalt and 0.1-1 percent of N-phenyl maleimide are added into the reaction kettle at the temperature of 80-160 DEG C; and the pressure remains 0.1-0.4 MPa. The reaction is carried out for 3-6 hours; the reaction product is deaerated and filtered, and then the modified asphalt is obtained. The chemically modified asphalt provided by the method has good performance, which greatly improves the shortcomings that the common asphalt has strong temperature sensibility, low viscosity, poor flexility and the like. The modified asphalt can meet the use performance of roads and prolong the service life of roads; when the modified asphalt is used in road maintaining, maintenance, the time of traffic closing is shortened, the construction condition is improved and the construction efficiency is increased.

The invention relates to a crankcase ventilation rubber hose and a machining method thereof. Raw materials include ethylene acrylate rubber, acrylic ester rubber, nitrile rubber, a reinforcing agent, a plasticizing agent, an interior parting agent, an age inhibitor, a vulcanizing agent and an accelerator; all the rubber and corresponding auxiliary materials are blended according to mass parts specified in a rubber formula; and the reinforcing agent and the plasticizing agent are automatically fed by an automatic pipeline conveying system. The rubber hose is produced by using a Banbury mixer through a two-stage rubber mixing process, so that a sizing material has a bright exterior after being mixed, and is mixed uniformly. A cold feed extruder is used for extruding finished hose blanks. A hose is required to be molded by first-stage and second-stage vulcanization. By using the machining method, an optimal material performance combination is obtained, comprehensive requirements on the using performance, the production cost and the like of a product are met, the FAM B oil resistance of the crankcase ventilation hose is prominent, the resistance to oil temperature is increased from 140 DEG C to 175 DEG C, the oil resistance is enhanced from 135 DEG C to 160 DEG C, and higher using requirements are met.

The invention provides a phosphorus-containing fluorine-containing synergic flame-retardant compound and a preparation method thereof, relating to flame-retardant compounds. The preparation method comprises the following steps: carrying out reaction on a diamido compound and 5-bis(trifluoromethyl)benzaldehyde in a first solvent, carrying out rotary evaporation, and drying to obtain an intermediate containing carbon-nitrogen double bond; and carrying out reaction on the intermediate containing carbon-nitrogen double bond and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide in a second solvent, precipitating the product with a precipitant, washing with the precipitant, and drying to obtain the phosphorus-containing fluorine-containing synergic flame-retardant compound. The compound simultaneously comprises the flame-retardant elements phosphorus and fluorine, and the phosphorus and fluorine have the synergic flame-retardant actions; and thus, the compound can be used as a flame retardant and has favorable flame-retardant effect. The introduced fluorine element can enhance the heat stability and chemical stability, lower the surface energy of the material and lower the dielectric constant and hydroscopic property of the material, thereby satisfying the required properties of the electronic packaging material. The compound contains two active groups, thereby being beneficial to enhancing the compatibility with the high-polymer material, improving the loss of the flame retardant and enhancing the flame retardancy.

The present invention provides a cement particle board and the manufacturing method thereof; the cement particle board comprises the weight percentage compositions of raw materials: 15 to 35 percent of wood wool (absolute dry wood wool), 15 to 45 percent of high-calcium fly ash, 30 to 55 percent of cement, 1 to 3 percent of sodium silicate, 0.3 to 1.8 percent of calcium chloride and 0.1 to 2 percent of addition agent. The method of the present invention uses high-calcium fly ash of industrial wastes, frutex or lops wood shavings for manufacture of hard board, thereby reaching the 'Cement Xylolite Slab (JC/T411-1991)' standard and saving production cost, reducing environmental pollution, expanding, at the same time, the range of wood raw materials for particle board production and creating higher economic value.

The invention belongs to construction material,Which provides material components and weight percentage rate of a baking-free brick with red mud and flyash are: 22-40 of the red mud, 20-35 of the flyash, 20-40 of aggregate, 8-12 of lime and 1-3 of plaster.With the aim of realizing the largest utilization quantity of the red mud and economizing the cost, through the researches and experiments, the invention uses the red mud and the flyash as main material and uses grit and friable rubbles as the aggregate so as to facilitate compressive strength of the products; the lime and the plaster is added to improve plasticity of the blank material, strength of a semi-finished blank brick and the compressive strength of the products. The invention can satisfy the utilization performance of the products and at the same time completely can meet the national standard requirement, thus solving the problem of the environmental pollution caused by the discharge of the red mud in larger sense.

The invention relates to sizing material used for the acrylic acid ester rubber with high performance requirement. The acrylic acid ester rubber of active chlorine introduced from epoxy gene is chosen, and trimerization thiocyanic acid TCY is adopted as a vulcanizing system; the invention comprises concrete ingredients as follows: 100 parts of AR5160, 60-90 parts of carbon black N330, 1.0-2.0 parts of stearic acid, 8-14 parts of plasticizer, 2.0-2.5 parts of WB-212, 0.1-0.3 part of anti-scorching agent E/C, 2.0-3.0 parts of antioxidant, 1.0-1.5 parts of curing agent TYC, and 1.5-2.5 parts of accelerator BZ; glass with Mooney viscosity of ML1+4 50 is adopted to be vulcanized and transformed into -25 DEG C acrylic acid ester rubber for matching, so as to ensure that the brittleness intensity reaches above -45 DEG C. The sizing material of the acrylic acid ester rubber with high performance requirement is obtained. The sizing material has the advantages that the comprehensive physical property is good, and simultaneously the brittleness temperature is lower. The invention meets the requirement of the vehicle industry to the sealing material, and the technical level achieves the domestic advanced level. The invention is suitable for the ranges of vehicle engine, crank oil seal, gear shifting box oil seal, and heat resistant, oil proof and cold resistant rubber hose, and protecting sleeve, etc.

The invention relates to a baking-free brick mainly prepared from river/lake dredging sediment and a natural-curing manufacturing method thereof, belonging to the technical fields of environmental engineering and construction materials. The baking-free brick is composed of the following raw materials in percentage by weight: 50-70% of dredging sediment, 10-20% of cement, 12.5-30% of sand, 1.5-5% of fly ash, 2-3% of quicklime, 0.1-0.25% of sodium silicate and 0.25-0.4% of antifreezing agent. The manufacturing method comprises the following steps: (1) dredging sediment dehydration: dehydrating the dredging sediment until the water content is less than 30%; (2) mixing: carrying out dry mixing on the dredging sediment, cement, sand, fly ash, sodium silicate and antifreezing agent; adding water, carrying out wet mixing, adding quicklime and stirring; (3) rolling; (4) brick making: making the brick with a brick making machine through vibration and pressurization; and (5) natural curing: piling the bricks, and naturally curing to obtain the baking-free bricks. The method is simple in technique and convenient to operate, changes wastes into valuable substances, and has the advantages of high brick quality, low cost, obvious benefit, environment friendliness and the like.

The invention relates to a sludge baking-free brick. The brick comprises the following components in percentage by mass: 25-40% of dredged sludge (moisture is removed), 30-45% of coal ash, 16-26% of quicklime, 4-8% of raw gypsum, 0.3-0.5% of gelatinizing agent, 0.2-0.4% of accelerant, 0.1-0.15% of sodium silicate and 0-0.25% of anti-freezing agent. Meanwhile, the invention further discloses a preparation method of the sludge baking-free brick. According to the sludge baking-free brick and the preparation method of the sludge baking-free brick, the industrial production can be completely realized, and the produced products can be used for replacing clay sintered bricks, so that not only is the environment protected, but also a mass of earth-rock resources are saved.

The invention discloses a method for calibrating temperature precision of a temperature sensor chip. The method comprises the following steps of: designing and producing the temperature sensor chip, wherein the temperature sensor chip comprises a correction circuit, and a temperature characteristic curve caused by band gap voltage of a semiconductor is shown in the specification: deltaTreal=AT<2>+BT+C; determining symmetric center temperature Talphac; when the temperature sensor chip determines that output temperature is the symmetric center temperature Talphac through a test, adjusting a parameter value C by the correction circuit so as to change a vertex value deltaTreal_1 of the temperature characteristic curve deltaTreal caused by the band gap voltage of the semiconductor in the circuit of the temperature sensor chip; and finally completing calibration of the temperature precision of the temperature sensor chip. By utilizing the invention, the final output temperature precision of the temperature sensor chip can be calibrated only by one temperature test.

This invention relates to high temperature nickel and hydrogen battery in battery field, which comprises base board and positive electrode components, wherein the positive substance has sphere nickel hydroxide activity subject, conductor agent, adhesive agent and addictive agent, wherein the addictive agent is of calcium fluoride, zinc oxide, barium hydrate, erbium oxide, yttrium oxide. The invention improves the positive electrode reaction level and adds the NiOOH quantity through adding zirconium element into the positive subjects.

The invention provides a laser radar mounting bracket and a sensing system, which relate to the technical field of unmanned vehicle sensing. The laser radar mounting bracket is suitable for being mounted on a carrier, and comprises a general support frame, a lower adjustment support, an upper adjustment support and a laser radar, wherein the general support frame can be mounted on the carrier; thelower adjustment support is mounted on the top part of the general support frame; the lower adjustment support can rotate around a vertical axis relative to the general support frame; the upper adjustment support is mounted at the upper part of the lower adjustment support, and the two can rotate relatively around a horizontal axis; and the laser radar is mounted at the top part of the upper adjustment support. A sensing system comprises the laser radar mounting bracket. The invention aims at providing a laser radar mounting bracket and a sensing system, so as to alleviate the problems of large volume, large mass, complex structure and inconvenient mounting of the laser radar mounting bracket in the prior art.

The present invention provides one kind of color distortion resistant rubber composition for tyre valve. The rubber composition consists of rubber 100.0 weight portions, phenolic antiager 1.0-2.5 weight portions, plasticizer 5.0-12.0 weight portions, and vulcanizer 2.0-4.3 weight portions, and contains rubber in 30-90 wt%. The color distortion resistant rubber and its product have color distortion resisting performance.

The invention relates to a baking-free brick using coal gangue and red mud as main materials, and a preparation method for the baking-free brick. The preparation method comprises the following steps: selecting red mud, coal gangue and fly ash as raw materials, adding water to make a green body, and then steaming and nourishing in water vapor of which the temperature is 60-140 DEG C and the pressure is 0.12-0.35 MPa for 2-10 h. Through steaming and nourishing at the specific pressure and the specific temperature, the structure of the prepared baking-free brick is relatively compact, the average compressive strength is further improved, the dose of an exciting agent is reduced, the strength of the brick is improved, the plasticity of the green body and the compressive strength of the product are improved, the baking-free brick not only satisfies the usability of the product, but also completely achieves the requirements of national standard, no cementing material is needed to be added in the production process, no firing is needed, accumulation of red mud and coal gangue is reduced in a larger sense, and the problem of red mud and coal gangue discharge on environment is solved.

The invention discloses a shock absorbing type electronic capacitor fixed containing box. The shock absorbing type electronic capacitor fixed containing box comprises a box body and a box cover, the inside of the box body is provided with a support plate, the top of the support plate is provided with a containing frame, the bottom of the support plate is provided with a buffering device, and the bottom of the buffering device is fixedly connected with the bottom of the inner cavity of the box body; one side of the box cover is rotatably connected with one side of the box body, one side of thebox body is provided with a fixing block, the other side of the box cover is provided with a connecting plate, and the bottom of the connecting plate is provided with a fixing device. The shock absorbing type electronic capacitor fixed containing box relates to the technical field of capacitors. By means of the buffering device, first buffering springs, a stopper and a rubber cushion, the shock absorbing type electronic capacitor fixed containing box achieves the aim of absorbing shock and avoids the problem of damage caused by shock as well as economic loss; by means of the fixing device, thefixing block, a fixing groove, a limiting groove and a sliding groove, the box cover is convenient to open and close, so that labor and material resources can be saved, and the use demands of users can be met.