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225results about How to "Reduce cumbersome procedures" patented technology

Carst region double-arch road tunnel construction method

The invention discloses a carst region double-arch road tunnel construction method, which comprises the following steps; 1. carrying out construction preparation; 2. carrying out construction at channel openings; 3. adopting a three-pilot-tunnel method for constructing the channel inlet opening section, and adopting a step digging method for digging during the three-pilot-tunnel method construction; 4. adopting a middle-pilot-tunnel method for constructing the middle communication section of the channel, and adopting a full cross section method for digging during the middle-pilot-tunnel method construction; 5. adopting the three-pilot-tunnel method or the middle-pilot-tunnel method for constructing the channel outlet opening section, adopting the step digging method for digging when the middle-pilot-tunnel method is adopted for digging construction of the channel outlet opening section, and synchronously carrying out secondary lining construction from the front part to the back part in the digging construction process of the channel inlet opening section, the middle communication section of the channel and the channel outlet opening section. The invention has the advantages of reasonable design, simple and convenient construction, safe and reliable construction process, flexible construction mode, short construction period and greatly simplified construction steps, and effectively overcomes various defects during the traditional carst region double-arch road tunnel construction.
Owner:CHINA RAILWAY 20 BUREAU GRP +3

Manufacturing method for 3D (three-dimensional) printing shoe pad

The invention discloses a manufacturing method for a 3D (three-dimensional) printing shoe pad. The manufacturing method comprises the following steps: acquiring foot data in sequence, scanning feet to obtain foot shape dimension data, and obtaining sole pressure data during various daily activities through a pressure test; generating a three-dimensional model by data processing software according to the acquired foot shape dimension value, combining the three-dimensional model with measured pressure value to analyze multi-layer shoe pad plane data, and inputting the multi-layer shoe pad plane data into a 3D printer; respectively sintering various powdered thermoplastic materials and then supplying the sintered various powdered thermoplastic materials to a spray head of the 3D printer; selecting the sintered thermoplastic materials by the 3D printer according to the shoe pad plane data, heating the thermoplastic materials through a spray nozzle of the 3D printer, and then printing corresponding shoe pad layers layer by layer on a shoe pad mould, fusing and depositing the thermoplastic materials on each plane layer to form a shoe pad finished product. According to the manufacturing method disclosed by the invention, the customization of high-quality shoe pads can be realized, complex processes can be eliminated, meanwhile, the raw material consumption is reduced, the production efficiency can be improved effectively, and the cost can be saved greatly.
Owner:刘轶

Preparation method and application of perovskite type composite oxide catalyst

The invention discloses a preparation method and application of a perovskite type composite oxide catalyst. The perovskite type composite oxide catalyst is an A-position substituted perovskite type composite oxide. The structural formula of the catalyst is A1-xA'xBO3, wherein x is larger than 0 and smaller than 1; A is La or Nd element; the A'-position substitution ion is one of Ca, Sr, Ba, Ce and the like; and the B-position ion is one of Mn, Co, Ni, Fe and the like. The preparation method comprises the following steps of: according to a chemical metering ratio, weighing a water-soluble salt which contains the A-position, A'-position and B-position elements; mixing the salt and deionized water to obtain 5 to 20 percent salt solution; adding the solution into a beaker; adding activated carbon of which the mass is 0.1 to 1.5 times of the salt into the solution; completely soaking the activated carbon and standing; heating and stirring the mixture, continuously heating until the water content is completely evaporated, wherein the co-crystallized solid mixture is uniformly carried on the activated carbon, and after drying the mixture, grinding the mixture into powder; and sintering the powder in a muffle furnace, cooling the sintered powder with the furnace to room temperature, and grinding the cooled powder to obtain the powder of the perovskite type composite oxide mixed catalyst. The preparation method is suitable for production; and the electrode activity of the perovskite type catalyst can be greatly improved in a zinc air cell structure.
Owner:BEIJING CHANGLI UNION ENERGY TECH CO

Test device and test method for measuring residual stress of bent pipe

The invention relates to a test device and test method for measuring residual stress of a bent pipe and belongs to the technical field of experimental mechanics and residual stress measurement. In the method provided by the invention, the digital speckle correlation technique is combined with the drilling technique, and the method comprises the following steps: using a CCD (charge coupled device) camera to take photos of the bent pipe before and after the bent pipe is drilled; utilizing the digital speckle technique to measure the stretched displacement of two ends of the front and back drilled round holes; and measuring the residual stress of the bent test piece with a confirmed principal stress direction, so as to acquire the residual stress. The digital speckle correlation technique used in the method refers to non-contact measurement. Compared with the traditional electrical testing method, the method has the advantage that the complex process of sticking a foil gauge each time is omitted, thereby being more convenient and simpler. For the measurement of the residual stress of the bent pipe, a column correcting process is added in the method provided by the invention as compared with the traditional method, thus the acquired result is more accurate.
Owner:TSINGHUA UNIV

Water-retention and slow-release fertilizer based on coal gangue micron-grade hollow sphere and preparation method of fertilizer

InactiveCN103570463APromote sustainable developmentLarge drug loading capacity in the cavityFertilizer mixturesOrganic fertilizerMaterials science
The invention discloses water-retention and slow-release fertilizer based on a coal gangue micron-grade hollow sphere and a preparation method of the fertilizer. The novel water-retention and slow-release fertilizer based on the coal gangue micron-grade hollow sphere consists of a coal gangue hollow sphere shell layer and a fertilizer core layer, wherein the shell layer is a coal gangue micron-grade hollow sphere or a coal gangue micron-grade hollow sphere coated with an organic coating material on the surface, and the core layer consists of a fertilizer material or a composite material simultaneously containing organic fertilizer and a water-retention material. The material of the core layer is dissolved in water, and is loaded in a hollow cavity of the coal gangue hollow sphere through vacuum, ultrasonic or pressurized impregnation; and the organic coating material covers the coal gangue hollow sphere to seal a shell porous structure, so as to enhance a slow-release effect. The water-retention and slow-release fertilizer disclosed by the invention obviously enhances slow-release performance of the fertilizer, improves utilization rate of the fertilizer and makes full use of solid waste coal gangue, and has relatively strong water-absorption and water-retention properties; and the fertilizer is low in cost, simple in process and environment-friendly and has wide application prospect.
Owner:TSINGHUA UNIV

Car spare tire cover plate manufacturing method

The invention discloses a car spare tire cover plate manufacturing method which comprises the following steps: delivering PP (polypropylene) engineering plastic particles into a charging barrel above a blow molding machine; heating and delivering the plastic particles to an extrusion die head by virtue of an extrusion screw rod; fixing a punched non-woven fabric on the fixed die cavity plate of a blow molding die; extruding molten plastic from the die head through the extrusion die head, thus forming a primary blank; sealing the lower end of the primary blank through a sealing device, starting the die head for blowing, thus forming the blank with needed dimension through blowing expansion, and starting die assembly; when the die assembly is in place, starting an oil cylinder on a supporting plate instantaneously so as to push a reinforcing rib forming push plate on a fixing plate to extrude the blank, delaying for 1-2 seconds, retreating the oil cylinder, and simultaneously starting a blowing needle for blowing; carrying out blowing forming and cooling; and carrying out die sinking when preset forming and cooling time is achieved, and taking out the finished product. The spare tire cover plate manufactured by the method is light in mass, good in sound-insulating effect, large in bearing force and good in attaching effect of the body and the fabric.
Owner:NINGBO SUNLIGHT MOTOR PARTS

Device for control surface unfolding wind tunnel test of free flight model

ActiveCN105424314ALock freelyThe test data is authentic and credibleAerodynamic testingRudderControl engineering
The invention discloses a device for a control surface unfolding wind tunnel test of a free flight model, which comprises a flexible head, a flexible body, a folding rudder and an unfolding mechanism, wherein the unfolding mechanism comprises a push rod which is equipped with a round boss on the rear section, a front nut, a rear nut, a big spring and a small spring, a front end blind hole, a rear end blind hole and a middle through hole communicated with the two blind holes are disposed inside the flexible body, an installation groove used to install the folding rudder and a spindle installation hole are disposed in an flexible body wall of the rear end blind hole, the push rod passes through the middle through hole, the big spring is sleeved into the push rod from the front end and installed in the front end blind hole and then limited by the front nut and the bottom wall of the front blind hole, the small spring is sleeved into the push rod from the rear end and fixed on the round boss, a rudder plate of the folding rudder is installed in the installation groove by a spindle, the rear nut is connected on the push rod by threads on the rear side of the folding rudder, a chamfer is disposed on the front end of the rear nut, the top end of the chamber is contacted with a coordination face on the rear end of the folding rudder when the folding rubber is folded, and the flexible head is installed on the front end of the flexible body after installation of the unfolding mechanism. The device is simple in processing and convenient in installation.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS

Nutritive absorbent resin seedling raising paper and preparation method thereof

The invention relates to nutritive absorbent resin seedling raising paper and a preparation method thereof. The preparation method comprises: performing modification and ultrasonic treatment of corn stalks; adding aqueous solution of K2S2O8 into the corn stalks to prepare gel; soaking the gel in mixed nutrition solution to obtain a nutritive absorbent resin; uniformly spraying the nutritive absorbent resin onto paper; and covering the paper with a layer of cotton pulp soft paper and drying the soft paper to obtain the nutritive absorbent resin seedling raising paper. The invention is characterized in that: the seedling raising paper using the nutritive absorbent resin which is made from crop stalks as a main body can reduce soil consumption for raising seedlings, improve seedling raising temperature and reduce workload in a seedling raising process; complex process procedures for raising seedlings by soil and fertilizer are reduced; when the seedling raising paper is used, strong seedlings with thick and strong roots can be obtained; when the seedling raising paper is used in a seedling raising process of rice, tobacco or other plants, nutrients the seedlings need can be supplied continuously with high efficiency; and the use of the paper is convenient, the seedling raising process is simplified, the seedlings are suitable to be planted by machines or hands, the working efficiency of the planting is high and the planting quality is high.
Owner:金凤有

Simple reinforcing method of vacuum electroosmosis combined prepressing soft soil foundation

The invention discloses a simple reinforcing method of a vacuum electroosmosis combined prepressing soft soil foundation, and the method is used for overcoming the poor characteristics of high water content, high compressibility and low shearing strength of a sludge soft clay foundation. The simple reinforcing method comprises the following steps of: firstly, laying a geotechnical cloth or knitted mesh on the surface of a foundation to be processed; then arranging novel longitudinal drainage boards with different lengths, setting a transverse closed drainage system, hermetically connecting longitudinal and transverse systems, lapping conduction wire systems; laying a vacuum sealing film to ensure that the system does not leak air, and pumping water and gas passing through the novel longitudinal drainage boards and the transverse drainage system by using a vacuum pump; connecting the conduction wire systems to the positive pole and negative pole of a power supply, and pumping the water and the gas passing through the novel longitudinal drainage systems and the transverse drainage system by adopting a vacuum electroosmosis combined method; and finally, removing the sealing film, recovering the transverse drainage system and the conduction wire systems, and rolling and leveling ground.
Owner:WENZHOU UNIVERSITY

Fastening pattern cutting collecting pipe of parallel flow condenser and processing technique thereof

The invention relates to a collecting pipe, particularly relating to a fastening pattern cutting collecting pipe of a parallel flow condenser. The technical scheme provided by the invention is as follows: the fastening pattern cutting collecting pipe comprises a pipe body provided with harmonica tube installing holes evenly thereon; the pipe body is internally provided with refrigerant fluid inlet/outlet ports and spacers evenly; the pipe body consists of an fastening pipe and a welded plate in fastening welding with the fastening pipe; an inner space formed by integration of the fastening pipe and the welded plate is a runner; the refrigerant fluid inlet/outlet ports are all evenly distributed on the fastening pipe; the fastening pipe is internally provided with slots for the spacers to insert in; the spacers are inserted in the runner formed by the integration of the fastening pipe and the welded plate via the slots; an opening is arranged at the joint of the fastening pipe and the welded plate; the welded plate is connected on the opening part of the fastening pipe in a clipped manner and is welded with the fastening pipe; and the harmonica tube installing holes are evenly distributed on the welded plate. By adopting the above technical scheme, the fastening pattern cutting collecting pipe of the parallel flow condenser, with convenient processing and installing and lowered production cost, and a processing technique thereof are provided.
Owner:XINTIAN GROUP

U-shaped movable hold hoop type lifting lug for hoisting tower facility and hoisting method thereof

The invention discloses a U-shaped movable hold hoop type lifting lug for hoisting a tower facility and a hoisting method thereof. The U-shaped movable hold hoop type lifting lug comprises a U-shaped hold hoop, wherein a hoop ring of the U-shaped hold hoop hoops the side wall of a tower body, a pair of pipe shaft type lifting lugs is symmetrically arranged on two sides of the U-shaped hold hoop, the circle center of the cross section of the side wall of the tower body is rightly located on the axis connection of the two pipe shaft type lifting lugs, connecting rods are connected between the open ends of the U-shaped hold hoop, the tower body is hooped through the U-shaped hold hoop, the pipe shaft type lifting lugs on the U-shaped hold hoop are hoisted through a sling of a main hoisting crane during hoisting, and the pipe shaft type lifting lugs are connected with auxiliary lifting lugs. Therefore, the lifting force of the sling is transferred to the auxiliary lifting lugs to avoid sliding of the U-shaped hold hoop, the sling of an auxiliary hoisting crane hoists a tail-lifting lifting lug, enables the tower body to be changed from a vertical state to a horizontal state under the cooperative effect with the main hoisting crane and enables the U-shaped hold hoop to bear the radial pressure of the tower body, and safety is ensured. The tower body is hoisted by using the U-shaped movable hold hoop type lifting lug and the hoisting method, welding operation required to be performed on the tower body is avoided, and the tower body is protected.
Owner:CHINA NAT CHEM ENG THIRD CONSTR

Prefabricated assembling cast-in-place joint ring beam mold

The invention discloses a prefabricated assembling cast-in-place joint ring beam mold. The prefabricated assembling cast-in-place joint ring beam mold comprises a side mold plate A, a side mold plateB, a sliding rail, a lead screw, a bottom mold plate, inner mold plates and wood beams; the bottom of the side mold plate A and the bottom of the side mold plate B are inserted into vertical mold grooves formed in the bottom mold plate; the wood beams are arranged on the outer side of the side mold plate A and the outer side of the side mold plate B; the sliding rail is arranged at the upper endsof the two wood beams which are transversely and oppositely arranged; the lead screw penetrates through the upper portions of the two wood beams and is locked and positioned through nuts; the inner mold plates are arranged on the inner sides of the side mold plate A and the side mold plate B and arranged at the two ends of a prefabricated component; and steel bar penetrating holes are formed in the inner mold plates, steel bars in the prefabricated component penetrate through the inner mold plates, the inner mold plates are positioned by hooks arranged at the two ends of the steel bars, and the inner mold plates are provided with grooves and protrusions. According to the prefabricated assembling cast-in-place joint ring beam mold, prefabricating of building ring beams with any size can beachieved, the construction quality can be guaranteed, the complex process can be effectively reduced, and the construction period can be shortened; and the prefabricated component can be combined witha cast-in-place structure in the construction site more easily, and the construction quality is guaranteed.
Owner:CHINA THIRD METALLURGICAL GRP

Method of preparing conjugated linoleic acid glyceride by utilizing immobilized lipase

The invention provides a method of preparing conjugated linoleic acid glyceride by utilizing immobilized lipase. Conjugated linoleic acid methyl ester / ethyl ester containing part of free fatty acid and glycerol are adopted as materials, the immobilized lipase is adopted as a catalyst, conjugated linoleic acid ester and the glycerol are alternatively charged at the early stage, so that contact probability of the glycerol and the immobilized lipase is effectively increased, and reaction efficiency is increased; conjugated linoleic acid glyceride is prepared by virtue of a mixed charging method of the conjugated linoleic acid ester and the glycerol at a later stage; the free fatty acid and glycerol react to generate water molecules which are beneficial to playing of enzyme activity, so that reaction efficiency is quickened; meanwhile, methyl alcohol or alcohol is removed online by virtue of a way of charging a nitrogen gas or vacuum-pumping in a reaction process, so that reaction time is greatly shortened; and any organic reagent is not needed to be added in the whole preparation process, and residue of any organic solvent is not caused. Compared with the known glyceride preparation method, the method disclosed by the invention is simpler, lower in cost; and the obtained conjugated linoleic acid glyceride product is higher in quality and suitable for industrial production.
Owner:INNOBIO CORP LTD

Construction method of T-shaped pile and T-shaped drilling tool for construction of T-shaped cast pile

The invention relates to the field of treatment of building foundations, in particular to a construction method of a T-shaped pile and a T-shaped drilling tool for construction of the T-shaped cast pile. The construction method of the T-shaped pile comprises the steps that a large-torque slewing drilling machine, namely a construction machine, is adopted and is mounted through conventional processes including moving in place, centering and leveling; a large-section pile cap hole is formed through an auger bit; after the large-section pile cap hole is formed, the auger bit is located in the original position and is in a static state, and a drill rod continues to rotate to downwards push a squeezing and expanding drilling tool, so that a pile rod hole for a small-section pile body is formed; the rotary drilling procedure is conducted, a threaded bit is made to protrude towards the outer side of the auger bit, and pile lateral threads are rolled on the pile rod hole for the small-section pile body in a negative angle tangency point direction; and redundant soil of the compaction-thread T-shaped drilling tool and a pile cap is rotatably lifted to the ground. The construction method and the T-shaped drilling tool can improve the bearing capacity of a pile foundation and have the advantages that labor and time are saved, and the efficiency is high.
Owner:武汉谦诚桩工科技股份有限公司

Active request-based private number dynamic allocation system

The invention relates to the technical field of communication, in particular to an active request-based private number dynamic allocation system, which comprises a private number platform, a third-party platform and an operator, and is characterized in that the private number platform and the third-party platform are respectively provided with a platform private number pool and a third-party private number pool; the private number platform acquires a call request for calling an intermediate number in a private number pool by a calling number through a core network of the operator, and is used for initiating a query request to the third-party platform according to the call request; and a query request is sent to a third-party platform, so that the third-party platform dynamically allocates a continuous called number according to the query request and a set allocation strategy, and returns the called number and call control information to the private number platform, and the private number platform performs continuous call by using core network roaming of the operator. According to the invention, the updating timeliness of the intermediate number binding relationship can be improved, and the updating process of the intermediate number binding relationship can be simplified.
Owner:广西东信易通科技有限公司
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