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428results about How to "Consistent structure" patented technology

Device and method for testing bonding shearing strength of structural adhesive interface

The invention relates to a device and method for testing bonding shearing strength of a structural adhesive interface. The device comprises a bonding base material testing piece and two bonded testing pieces, wherein the bonding base material testing piece and the two bonded testing pieces are bonded in a crisscross manner by using a structural adhesive, the two bonded testing pieces are mutually parallel and are located at two sides of the bonding base material testing piece, the respective centers of the two bonded testing pieces and the bonding base material testing piece are located on the same straight line, a compression load is applied to the bonding base material testing piece to ensure that shear stress can be generated on a bonding interface of two materials, and the bonding shearing strength of the interface is calculated through the shear stress generated during damaging. The device and the method for testing the bonding shearing strength of the structural adhesive interface are suitable for testing the bonding shearing strength of the interface among different materials with certain bonding layer thicknesses, and especially suitable for evaluating the bonding strength of the structural adhesive between glass of a curtain for doors and windows of a building and a metal base material.
Owner:北京玻钢院检测中心有限公司

Fault simulation experiment table for step-up drive system of wind-driven generator set

InactiveCN102353534AEase of Research FeaturesEase of studying damage mechanismsMachine gearing/transmission testingWind drivenReduction drive
The invention discloses a fault simulation experiment table for a step-up drive system of a wind-driven generator set, which consists of two parts, i.e. a power source and fault simulation. The power source consists of a frequency converter, a variable-frequency motor and a speed reducer and is used for simulating the input rotation speed of an impeller rotor when the wind-driven generator set runs, and the fault simulation consists of a primary planetary gear step-up box, a secondary parallel shaft gear step-up box and a magnetic powder brake and is used for simulating a one-gear two-parallel-shaft gear step-up drive system and a dynamic load of the wind-driven generator set. Through the experiment table, the single and compound faults of components, i.e. a planetary wheel, a sun wheel and a bearing of a planetary step-up part as well as a gear, a bearing and the like of a parallel shaft step-up part in the step-up drive system of the wind-driven generator set can be simulated; the fault simulation experiment table for the step-up drive system of the wind-driven generator set can be used for researching the fault modeling and damage evolution mechanism of the step-up box of the wind-driven generator set and searching a characteristic extracting method of a vibrating signal under a variable load and a variable speed; the theoretical support and the technical support are supplied for the state monitoring of the wind-driven generator set; and the safe running of the wind-driven generator set is guaranteed.
Owner:XI AN JIAOTONG UNIV

A kind of production method of pickling-reducing steel

InactiveCN102266868AImprove surface quality and labor productivityReduce generationRoll mill control devicesMetal rolling arrangementsMicrostructureReaction curve
The invention relates to a production method for pickling steel with reduced acid and belongs to the technical field of metal rolling. The technical scheme is that: a FeO eutectoid reaction curve in a scale microstructure in the hot rolling process of target steel is formed; a rolling process is controlled, optimized and adjusted according to the FeO eutectoid reaction curve in the scale microstructure in the hot rolling process of the target steel; and the scale microstructure is changed, the generation of Fe2O3 which is difficult to pickle is reduced, the pickling speed is improved in the pickling process, and acid consumption of each ton of steel is reduced to pickle steel with acid. The invention has the advantages that: the scale is well controlled in the hot rolling process, and thesurface quality of a hot rolled strip coil and labor productivity are greatly improved; and the scale microstructure is changed, the generation of Fe2O3 which is difficult to pickle is reduced, the pickling speed is improved by 10 percent in the subsequent pickling process, and the acid consumption of each ton of steel is reduced by 7.5 percent. The pressure of excessive waste acid emission on the environment is greatly lightened, and the method has the advantages of energy conservation, emission reduction and great social benefit.
Owner:HBIS COMPANY LIMITED HANDAN BRANCH COMPANY

Method for preparing hydrocarbons matter with biological oil and fat

The invention relates to a method for preparing hydrocarbon substance equals to diesel oil, gasoline and aviation kerosene through inducting the calcium soap process of decarboxylation by utilizing biological grease, which belongs to the biological fuel oil field. The method comprises the following steps in sequence: the process of extracting biological grease; the process of full hydrogenation; the process of full calcium saponification; the process of extracting glycerin; the process of decarboxylation; the process of catalytic cracking. The preparation of biological oil with the biological grease of the invention has the advantages: firstly, the structure and the composition of the basic molecule of the biological oil is identical with that of the real petroleum fuel; secondly, the technical routes are completely various, the invention adopts the inductive decarboxylation of the full saturation fatty acid calcium soap; thirdly, the selection of the raw material of the grease does not collide with the national grain and oil security strategy; fourthly, the impurities contained are less; fifthly, calcium hydroxide produces calcium carbonate after being used, and the latter can be deoxidized into calcium hydroxide after being processed, and can be reused after being purified, which complies with the principles of the circular economy and the environmental economy.
Owner:任大鹏

Hinged system of low-floor hinged type train or coach

The invention relates to a hinged system of a low-floor hinged type train or coach. A front frame and a rear frame are fixedly connected with a rotary plate bearing respectively, and the front end of the front frame and the rear end of the rear frame respectively form a pitch axis. Preferably, each pitch axis comprises a spherical hinge, a spherical hinge installing hole and a spherical hinge fixing base. The spherical hinges can be inserted into the spherical hinge installing holes movably and fixed in the spherical hinge fixing bases. The front end of the front frame and the rear end of the rear frame are respectively provided with the spherical hinge installing holes. Mechanical lock devices are arranged on the front frame and the rear frame symmetrically in the right and the left directions. A super-angle sensing device is arranged on the rear frame. A rotary plate platform is arranged on the front frame, a front adhesive tape is fixedly connected with an adjacent carriage floor, and a rear adhesive tape is fixedly connected with the rotary plate platform and arranged below the front adhesive tape. The hinged system is good in torsion resistance and buffering effect, the front frame and the rear frame respectively form the pitch axis, even if a vehicle is pitched and overturned or moves vertically in a driving process, each pitch axis can move correspondingly, the vehicle can run smoothly without damage, and the hinged system is suitable for massive popularization and application.
Owner:JOINTECH (SUZHOU) VEHICLE SYST CO LTD

Dipolar coordinate four free degrees parallel robot based on dual-worm

The invention discloses a dipolar coordinate four free degrees parallel robot based on a dual-worm, comprising an upper screw mechanism, a lower screw mechanism, puncture needle mechanisms, a dual-worm transmission mechanism, a main connection board, a parallel platform holder and a support frame. One end of the parallel platform holder is fixed on the main connection board through a three-jaw structure, and the other end is connected with the support frame through a threaded coupling. The dual-worm transmission mechanism is arranged on one side of the main connection board and is connected with the main connection board. The upper screw mechanism and the lower screw mechanism symmetrically arranged at the two sides of the center of the main connection board are respectively connected with the dual-worm transmission mechanism to form two rotation free degrees, meanwhile the puncture needle mechanisms arranged on the upper screw mechanism and the lower screw mechanism form two movementfree degrees. The robot of the invention has the characteristics of simple and compact structure, light weight, small joint space, good rigidity, large working space and high flexibility, and is suitable for the automatic position of the manipulator used in minimally invasive surgeries of the neurosurgery, the orthopedic surgery, the prostate and the like.
Owner:昆山市工业技术研究院有限责任公司

Standard test piece based on calibration permeability test

InactiveCN101587055ASolve the problem of changing permeability coefficientPrecise specification of permeabilitySurface/boundary effectPermeability/surface area analysisHeat resistanceOsmotic coefficient
The invention discloses a standard test piece based on a calibration permeability test. The standard test piece is in the shape of a solid cylinder and composed of a solid framework, gaps and pore canals. The solid framework has a firm structure and stably material properties. The material has high rigidity, good toughness, corrosion resistance, rust resistance, heat resistance and pressure resistance. The gaps are near-spherical, the aperture sizes are uniform, and the apertures are controlled in the range of 1-50 microns, the gaps are uniformly distributed inside the test piece and on surface thereof. The pore canals are intersected and the average pore opening extent of the interconnected pore canals passing through two end faces is controlled in the range of 0.1-5% on the cross section. The invention is detected by permeation for a long time, has constant permeability parameters, high efficiency, high reliability and strong practicality. By using the permeation coefficients of the invention as a reference standard, the invention provides a detection method and tool as reference for global permeability test technique. The standard test piece based on a calibration permeability test is applicable to all permeability tests and in particular to the precision and measuring range of a calibration low-permeability testing method and device.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Single-crystal lithium nickel cobalt manganate precursor and preparation method thereof and single-crystal lithium nickel cobalt manganate

The invention provides a single crystal lithium nickel cobalt manganate precursor and a preparation method thereof. The preparation method comprises the following steps: preparing a mixed salt solution, a precipitant solution and a complexing agent solution, and introducing a mixed gas of oxygen and non-oxygen in a volume ratio of 1:19-1:29 into a reaction kettle at a flow rate of 7-20 L/min; adding the mixed salt solution, a sodium hydroxide solution and an ammonia water solution at a flow rate of 60-120 ml/min for reaction; and keeping the pH value at 10.0-11.0, a temperature at 30-60 DEG Cand a stirring rotating speed at 100-500 rpm to obtain the single crystal lithium nickel cobalt manganate precursor, wherein the thickness of the primary particle sheet layer is 100-200 nm, the particle size D50 is 3.0-4.0 [mu]m, and the particle size distribution (D90-D10)/D50 is less than or equal to 0.8. According to the invention, the secondary particle size D50 of the precursor prepared by the method is 3.0-4.0 [mu]m, and the particle size distribution is not more than 0.8; and the single crystal lithium nickel cobalt manganese oxide particles prepared by the precursor are narrow in particle size distribution and good in high and low temperature performance.
Owner:HENAN KELONG NEW ENERGY CO LTD
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