86results about How to "Short lead time" patented technology

The invention belongs to the field of engineering construction, in particular to a management system and a management method of a construction engineering labor service personnel. The current labor force management system on the market is applied independently by each enterprise or project, the information of the same labor personnel can not be shared, the labor team and labor personnel flow frequently, and the enterprise can not grasp the complete employment experience and performance evaluation of the past years, so there is an urgent need in the field of construction engineering labor personnel management system and management method to overcome the above problems. The invention provides the management system and the management method for the construction engineering labor service personnel, which can help to identify whether the labor service personnel conform to requirements, actively discover problems and implement predetermined measures to prevent employment risks. There are many kinds of attendance plans, and different types of projects choose the appropriate plan according to the needs; It has a standard interface to meet the needs of multiple data docking and help enterprises to improve the application value of real-name data. The invention is simple, easy to use and low in cost.

The invention provides a small-size underwater magnetic coupling propeller device which comprises a motor assembly, a magnetic coupling coupler assembly and a propeller assembly. The magnetic coupling coupler assembly comprises a spacer bush, a supporting ring, an inner rotor, an outer rotor, magnets, a rolling bearing and an elastic retaining ring, the supporting ring is installed in the spacer bush, the inner rotor is installed on the spacer bush and the supporting ring, a groove is arranged on the outer side of the inner rotor, a first magnet is installed in the groove, the outer rotor is installed on the spacer bush and located outside the spacer bush, the outer rotor is provided with a groove, a second magnet is installed in the groove, the left side of an inner ring of the rolling bearing leans against the spacer bush, the right side of the inner ring of the roller bearing leans against the elastic retaining ring, the left side of an outer ring of the rolling bearing leans against the outer rotor, the right side of the outer ring of the rolling bearing leans against the propeller assembly, the outer rotor is connected with the propeller assembly, and an output end of the motor assembly extends into the inner rotor and drives the inner rotor to rotate through a key. The small-size underwater magnetic coupling propeller device is small in size, light, good in tightness, easy to process and applicable to micro underwater robots.

The invention provides a method for determining distributed process parameters of a laser peening forming complex curved surface. The method comprises the following steps: establishing a function relationship between a deflection curved surface and an intrinsic moment based on plate shell mechanics, and establishing an optimization model based on partial differential equation constraint by takinga distributed intrinsic moment function as a design variable; according to a curved surface parameter equation or a curved surface coordinate of the workpiece, dispersing a target curved surface, selecting an appropriate optimization algorithm to solve an optimization model, and calculating a distributed natural moment; dividing into a plurality of isoparametric areas convenient for process operation according to the size of the distributed natural moment, and determining a laser peening forming scanning scheme in each area; and establishing a process database corresponding to process parameters and inherent moments through experiments, determining the experiment process parameters, and determining the optimal distributed process parameters in combination with the requirements of residualstress. The method for determining the complex curved surface forming technological parameters is established on the basis of the elastic plate shell theory, and high efficiency and precision are achieved.

The invention provides a method for treating coking biochemical effluent by microwave-oxidation-coagulation technology, which comprises the following steps of: A, adding a mixed reagent consisting of H2O2 and Fe2+ into the coking biochemical effluent until the mass concentration of hydrogen peroxide in water is between 0.01 and 1 percent, and controlling the pH to between 2.0 to 6.0; B, delivering the mixed liquid into an industrial microwave oven for processing for 5 to 60s; C, regulating the pH value of the mixed liquid to between 6.0 and 6.5 or 7.5 and 8.5, and carrying out oxidation treatment for 1 to 4 hours under an aeration condition that the aeration rate is 10 to 40m<3>/h; D, adding a coagulant into the liquid until the mass concentration of the coagulant in the liquid is betweenone millionth and one hundred thousandth; E, precipitating and separating; F, filtrating the liquid to obtain process effluent for recycling; and G, collecting sludge, separating the liquid from the sludge; and returning the liquid to the step D, and filter-pressing the sludge to obtain sludge cakes. The method realizes recycling, does not discharge sewage, and effectively solves the problem thatpresent coking sewage is difficult to treat and to recycle.

The invention relates to an underground mining plan used for a copper mine, relating to an exploitation and utilization plan of a copper mine. The invention is characterized in that the mine body is divided into an upper part and a lower part, wherein, the lower part adopts a phase ascending mining while the upper part adopts an in-situ crushing-leaching mining. The plan of the invention can improve a stope stressing state and prevent an earth surface sedimentation and sinking, and the plan is also safe and has low cost, and the resource of a copper mine can be fully exploited and a non-waste exploitation can be realized, thus bringing better economic benefits and social benefit to the copper mine enterprises.

The invention relates to an ultrasonic-assisted cold pad-batch dyeing machine which comprises a machine frame. The machine frame is provided with a cloth feeding device, a cooling device, a tension control device and an active winding device. An evenness padder is arranged between the cooling device and the tension control device, the tension control device is connected with the active winding device through a bearing arm, a roller is arranged between the evenness padder and the tension control device, the evenness padder comprises an ultrasonic penetration groove, and the active winding device is a constant low tension active winding system. Compared with an existing dyeing process, dyeing is achieved through ultrasonic waves, far infrared drying is not needed, steam does not need to be consumed, water consumption is small, pollution is little, consumption of dye and auxiliaries is little, the process is simple and reliable, preparation cycles are short, labor cost is reduced, equipment investment is little, the occupied area is small, and maintenance cost is low.

The invention discloses a dynamic tracking performance evaluation system for a laser seeker and a method. The dynamic tracking performance evaluation system comprises a multi-rotor drone platform, a flying platform measurement and control device, a ground measurement and control device and a laser irradiation device, the multi-rotor drone platform comprises a multi-rotor drone and a drone rack; the flying platform measurement and control device comprises the laser seeker, a platform equipment connecting tool, a data chain machine-mounted end and a platform power supply system; the ground measurement and control device comprises a drone measurement and control device, a seeker measurement and control device and a data link ground end; and the laser irradiation device comprises a laser irradiator capable of emitting light to irradiate a target. The dynamic tracking performance evaluation method of the laser seeker depends on a field real scene, is more reliable than an evaluation resultobtained through a semi-physical simulation evaluation system, is low in use and maintenance cost, simple and practical to operate and short in preparation and test period, and greatly reduces the verification difficulty of a whole aircraft terminal guidance system.

The disclosed direct-coupled triangular-substrate integrated waveguide cavity filter comprises: some isosceles triangular cavities to form regular polygon with any two near cavities as the initial and final cavity respectively; the inlet and outlet ports on cavity, the coupling window between the initial/final initial cavity and near one, and the cavities set between the initial and final cavities. This invention has well property beyond the pass band, and well square coefficient and selectivity on transfer parameters.

A ring type of bridge with waveguide integrated by H numbers of substrate is prepared as forming a ring waveguide structure by metalized through-holes being arranged in coaxial circle way, setting same-phase input end and reverse-phase input end as well as two output ends on ring waveguide structure, arranging metalized through-holes on media substrate coated with metal foil on both surfaces, enabling to use SIW as lead out arm of port for connecting said bridge to SIW components such as SIW antenna.

The invention relates to a technology for producing formaldehyde through an iron-molybdenum method. The technology utilizes an air filter, a booster fan, a circulating fan, a methanol preheater, a methanol vaporizer, a formaldehyde reactor, a formaldehyde absorption tower, a heat conduction oil condenser and an ECS tail gas treatment system and the above units are orderly connected. Through a national iron-molybdenum catalyst technology, the problem that the existing iron-molybdenum catalyst for formaldehyde production has dependence on import, the import period is long and an imported product has a high price is solved. The technology realizes nationalization of an iron-molybdenum catalyst for formaldehyde production, thoroughly breaks monopolization of the foreign catalyst technology in the iron-molybdenum catalyst market and has the characteristics of high conversion rate, high yield, high selectivity, long life and low unit consumption. The technology can be widely used in the field of formaldehyde production.

The invention provides an underwater propeller sealed cabin penetrating cable connector. A joint of an underwater cable and a sealed cabin penetrating cable is located in a watertight head, vulcanized rubber is arranged between the joint of the underwater cable and the sealed cabin penetrating cable and the watertight head for sealing, and the watertight head and a sealed cabin end cover are connected in a sealed mode. A pluggable structure is omitted, the radial size or the axial size of the cabin penetrating connector can be reduced, the underwater propeller sealed cabin penetrating cable connector is suitable for occasions with small mounting space such as a miniature underwater robot.

The invention provides a simple method for breeding aphelinus mali. The simple method is characterized by comprising steps of (1), providing annual malus prunifolia seedlings and planting the malus prunifolia seedlings in cups or pots when 7-8 leaves grow on each malus prunifolia seedling; (2) inoculating 3-5 adult eriosoma lanigerum on the planted malus prunifolia seedlings, placing the malus prunifolia seedlings with the eriosoma lanigerum into screen cages with a large quantity of aphelinus mali which is subjected to eclosion in advance when nymphs of the eriosoma lanigerum on branches of the malus prunifolia seedlings develop into fourth-stage eriosoma lanigerum or adult eriosoma lanigerum, enabling the aphelinus mali to perform parasitism on the malus prunifolia seedlings in the screen cages for 48 hours and then taking out the malus prunifolia seedlings; continuing feeding the eriosoma lanigerum on the malus prunifolia seedlings for 1-2 days after the eriosoma lanigerum turns black, trimming the branches of the malus prunifolia seedlings by pruning shears or brushing off black pupae by brushes. The simple method has the advantage that the aphelinus mali can be quickly and efficiently bred.

The invention discloses a 2D simulation experiment method for the flowing state of soil particles in the vibrating compaction process. The 2D simulation experiment method comprises the steps of: preparing a wooden box with a transparent front wall and detachably adjustable left and right walls; preparing a group of aluminum rods with different diameters; marking different colors on the end surfaces of the aluminum rods according to the different diameters; mixing the aluminum rods according to a certain proportion; wrapping the surfaces of the aluminum rods by using gauze and fine sand to simulate an internal friction angle; simulating cohesive force by using butter or slow-drying weak-viscosity glue; manufacturing a small loading device; paving the aluminum rods in a paper box; measuring and calculating the porosity before the experiment; starting a compaction experiment; measuring and calculating the porosity after the compaction; comparing the front and rear porosities; determining the compaction effect; observing a picture obtained by a high-speed camera; and analyzing a microscopic motion mechanism. The method can conveniently and detailedly simulate the flowing state of the soil particles in the vibrating compaction process, provides convenience for explaining the vibrating compaction mechanism from a microscopic angle, and provides a visual and effective experimental means for researching the relation between microscopic motion and macroscopic parameters in the vibrating compaction process.

The invention belongs to the field of deep-sea exploration, in particular to a suction disk-type electromagnet sealing magnetic conductivity structure. The structure comprises an upper cover, a pressure-bearing member, a magnetic conductive cylinder, an electromagnet, a retaining ring, an O-ring, a lower cover; a magnetic conductive cylinder and an upper cover are magnetic conductive materials, and the pressure-bearing member and the lower cover are non-magnetic conductive materials. one end of that magnetically conductive cylinder is in close contact with the magnet core of the electromagnet,the upper cover is in contact with the electromagnet housing, and when the electromagnet is in the work state, the attracted object forms a closed magnetic circuit with the upper cover, the electromagnet housing, the magnet core and the magnetically conductive cylinder. The structure can not only seal the electromagnet, but also lead the magnetic force of the electromagnet out, and is especiallysuitable for the equipment needing the electromagnet in the deep sea environment. As that electromagnet of the invention is selecte from the common suction disk electromagnet, no additional customization is required, therefore, the supply period is short, the cost is low, the replacement is easy, the seal is reliable, the structure is an independent module, the installation and replacement are convenient, the shell wall thickness is designed according to different working depths, sufficient space is provide, and unnecessary weight is reduced.

The present invention discloses an ultra-deep and extra-thick dense sand stratum prestressed pipe pile long spiral lead hole construction method. The method comprises the following steps of: S1: siteformation and drill stem equipping: performing leveling and compaction for a site prior to place taking, or bedding a steel plate to facilitate place taking of a pile machine, and regulating equippingof the corresponding quantity of drill stems according to the depth of the lead holes to ensure the lead hole operation flow construction, wherein two lead hole drills are arranged on the site; and S2: location, paying-off and place taking of the pile machine: employing a total station to perform laying-off for preset lead hole stake positions, taking a drill machine in place to complete correction of the vertical degree of the drill stem and the centering of the center of the drill, and after location, putting down a support oil cylinder at the lower portion of a front-end mast and two support oil cylinders at the tail portion of the machine body of the drill machine. The ultra-deep and extra-thick dense sand stratum prestressed pipe pile long spiral lead hole construction method can extend the drill stem at will through connection according to pore-forming demands by employing a design of the hexagonal joint of the drill stem, can effectively ensure the reliable connection of the drill stem by only using a dual-way fixed plug pin after the drill stem is inserted when being connected and can meet the construction of an overlength pile hole.

The invention relates to a change-material model test design method of load transfer characteristics of an aircraft thin-wall structure. The method comprises: firstly, determining scaling ratios of anoverall dimension, a structure stand position and structure thickness of a model test piece; secondly, determining a material of the model test piece; thirdly, determining similarity ratios of physical quantities of an aircraft prototype and the model test piece under a plane stress condition according to similarity indexes; and fourthly, calculating and obtaining a load of the model test piece according to a load of the aircraft prototype and the similarity ratio, finally measuring and obtaining the remaining physical quantities of the model test piece according to the load applied to the model test piece, and reversely inferring and calculating a test result of the aircraft prototype. According to the change-material model test design method of load transfer characteristics of aircraftthin-wall structure provided by the invention, engineering manufacturing difficulty can be eliminated; a material of a model test is changed, and the material with a short material preparation cycle and a low price is used; a test cycle and scale are shortened in a multiplied manner, and costs are saved; and design risks of an aircraft scheme demonstration phase are reduced.

The invention discloses a high-pressure and ultrahigh-pressure hydrogen storage bottle type container and a manufacturing method thereof. The manufacturing method comprises the following steps that asteel ingot with the S content not larger than 0.008% and the P content not larger than 0.015% is formed into a seamless steel pipe through hot rolling (expanding) or hot rolling and cold drawing; twoends of the seamless steel pipe are subjected to hot spinning to form hemispherical seal heads at the two ends; and the bottle body of the hydrogen storage bottle type container is subjected to quenching and tempering heat treatment, so that the metallographic structure of the bottle body is two-stage tempered sorbite (GB/T11354), and the grain size is not lower than grade 6. The manufacturing method of the high-pressure and ultrahigh-pressure hydrogen storage bottle type container is large in hydrogen storage capacity, long in service life, high in pressure bearing capacity, low in manufacturing cost, capable of preventing the hydrogen embrittlement phenomenon and convenient for regular inspection.

The invention belongs to the technical field of epoxy resin compositions and specifically relates to a wear resistant cast asphalt mixture floor covering material. The wear resistant cast asphalt mixture floor covering material comprises the following components of water-borne epoxy resin, a curing agent, a toughening agent and a coupling agent. The wear resistant cast asphalt mixture floor covering material provided by the invention has the advantage of good wear resistance.

The invention relates to an assembled block wall, which is a multi-layer block layer formed by stacking blocks, wherein the block layer at the bottom layer is sequentially built by N blocks along a length direction, vertical mortar joints are arranged between adjacent blocks, the block layer of the sub-layer adjacent to the bottom layer is composed of a half-length block, a N-1 block and a half-length block in sequence, and the vertical mortar joints are arranged between adjacent blocks; N is a positive integer greater than 1; the structure of the adjacent blocks is the same, and transverse mortar joints are arranged between the adjacent block layers; two horizontally tied steel bars symmetrically distributed along the length of the bottom layer are arranged between the block layer of thebottom layer and the block layer of the sub-layer, the horizontal tied steel bars with 500-600mm spacing are arranged along the wall height of the assembled block in sequence, and the horizontal tie bars are located between the adjacent two block layers and symmetrically arranged along the length direction; and the two ends of the horizontal tie bars protrude from the two sides of the block layerrespectively. According to the invention, the masonry is standardized, the masonry structure is simple, automatic masonry is convenient, and the masonry efficiency is high.

The present invention discloses a method for efficiently dispersing carbon nanotubes. The method comprises mixing, in parts by mass, 1-30 parts of carbon nanotubes, 0.2-10 parts of functionalized carbon nanotubes and 400-1200 parts of a solvent, adjusting the pH of the resulting mixture to 5-9, and then ultrasonically dispersing the mixture to obtain a stably dispersed carbon nanotube dispersion; the functionalized carbon nanotube is one or more of a carboxylated carbon nanotube, a hydroxylated carbon nanotube, an aminated carbon nanotube, an acyl-chlorinated carbon nanotube, and a sulfonated carbon nanotube.