Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

63results about How to "No change in thickness" patented technology

Method for designing and constructing prestressed section steel reinforced shear wall

The invention discloses a method for designing and constructing a prestressed section steel reinforced shear wall. The method includes the following steps: a, determining a reinforcing section according to detection and calculation results, and selecting multiple sections of short section steel according to length of the reinforcing section, wherein multiple pegs are welded on the outer surface of the short section steel, section steel grooves are formed in the shear wall along the height direction, and local replacement grooves are formed in a wall body at the bottom of the section steel grooves; b, arranging a counterforce frame and mounting the section steel; c, pouring high-strength concrete in the local replacement grooves and maintaining, wherein a lower end plate contacts with the high-strength concrete; d, restoring original shear wall rebars; 3, applying prestress; f, erecting a formwork, pouring and maintaining; g, demounting the counterforce frame. By the above mode, the method does not need temporary supporting and is convenient in construction, construction period can be shortened greatly, original structure form is unchanged, thickness of an original shear wall is unchanged, and load-bearing capacity of the shear wall is improved remarkably.
Owner:JIANGSU DINGDA BUILDING NEW TECH +2

Leaching and removing method and device of PAHs in polluted soil

InactiveCN102145345AOptimization of washing process conditionsRealize practicalityContaminated soil reclamationBiodieselPollution soil
The invention relates to a treatment technology for polluted soil with high content of PAHs (PolycyclicAromaticHydrocarbons), in particular to a leaching and removing method and device of PAHs in polluted soil. The leaching and removing method of PAHs in polluted soil comprises the steps of: laying glass wools used for avoiding the polluted soil moving vertically along with a leacheate on and under the polluted soil arranged in a leaching column, and then enabling the leacheate to move from bottom to top in the leaching column to leach the polluted soil so as to remove the PAHs pollutants, wherein biodiesel is adopted as the leacheate. The leaching and removing device of PAHs comprises the leaching column, a draining pipe and a collecting cup, wherein a liquid inlet controlled by a switch is arranged at the lower end of the leaching column, and the upper end of the leaching column is connected with the collecting cup through the draining pipe. The leaching and removing method provided by the invention has high efficiency for treating polluted soil with high content of PAHs. When the leaching and removing method and device are used for treating the soil of a gas plant, the biodiesel is adopted as the leacheate when the total amount of 12 types of PAHs in soil is 996.85 mg/kg; and when the ratio of the leacheate to the soil (v/w) is 2:1, the total amount of PAHs in the soil can be reduced to 377.03 mg/kg, and the removing rate of all the 12 types of PAHs is 62.18 percent.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI

Method for improving lamination strength of lamination components

The invention provides a method for improving the lamination strength of lamination components. The method for improving the lamination strength of the lamination components aims to improve the lamination strength of the lamination components (a liquid crystal display screen and glass, a liquid crystal display screen and a touch screen, and glass and glass). The method is characterized in that a double-sided dry glue lamination mode is adopted, that is, the lamination surface of the lamination component A and the lamination surface of the lamination component B are coated with glue, after theglue is cured at a certain temperature, the components A and B are bonded together, and the double-sided dry glue lamination process is completed. Compared with single-side lamination, double-sided lamination refers to lamination of dry glue and dry glue, direct lamination of the lamination surface and dry glue in single-side lamination process is thus avoided, and the lamination strength of the components is improved. The double-sided dry glue lamination process can effectively improve the lamination strength, the compatibility is high, and the method is suitable for lamination between the liquid crystal display screen, the glass, the touch screen and other components.
Owner:NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD

Hydraulic torque converter three-dimensional blade profile modification design method based on conformal transformation

The invention discloses a hydraulic torque converter three-dimensional blade profile modification design method based on conformal transformation, solves the problems that a traditional conformal transformation method is low in precision and serious in three-dimensional blade profile modification distortion, and belongs to the technical field of engineering machinery transmission. The method comprises: 1, giving orthographic projections of three impeller blades of the hydraulic torque converter and a circulating circle of the hydraulic torque converter; 2, finding a blade inlet and outlet sideboundary on the blade orthographic projection drawing; 3, drawing a blade curve multi-cylindrical-surface expansion diagram; 4, performing blade angle transformation, solving new blade coordinates, and obtaining a new blade space curve; and 5, sewing the blade space curve into a blade three-dimensional entity by constructing a ruled surface. According to the method provided by the invention, errors caused by traditional conformal transformation drawing can be greatly reduced, the defect of serious distortion caused by changing the angle of the blade in three dimensions is overcome, meanwhile,the precision of the shape of the head of the blade is ensured, and the defect of accumulative errors is avoided.
Owner:JILIN UNIV

Ion exchange membrane for ultra-high current density oxygen cathode electrolysis and preparation method thereof

The invention relates to an ion exchange membrane for superhigh-current-density oxygen cathode electrolysis and a preparation method thereof. The ion exchange membrane is a multilayer composite film composed of a perfluorocarboxylic acid ion exchange resin layer, a carbon-nanotube-containing perfluorosulfonic acid ion exchange resin layer, a reinforcing mesh, a sulfonic acid side gas release coating and a carboxylic acid side multifunctional coating, wherein the total thickness of the basal membrane of the perfluorinated ion exchange membrane is 90-180 micrometers, the thickness of the perfluorosulfonic acid resin layer is 80-160 micrometers, the thickness of the perfluorocarboxylic acid resin layer is 8-16 micrometer, and the thickness of the two side surface coatings of the membrane is respectively 3-12 micrometers. The membrane can be prepared by a melt coextrusion or multilayer hot-press compounding technique. The membrane is used for an oxygen cathode electrolysis technique, is especially suitable for ion-exchange-membrane-process caustic soda production by a superhigh-current-density oxygen cathode electrolysis technique, and has favorable mechanical properties and electrochemical properties.
Owner:SHANDONG DONGYUE POLYMER MATERIAL

Electric contact point and contact element

[Problem] An arcing horn, or the like, for guiding an arc occurring when opening/closing an electric contact thereby preventing erosion of the contact point or a support material, or, a protruding portion of the support material provided at an extremity portion of the contact point in the direction in which the arc is driven thereby rendering the contact point difficult to melt, are known ways in prior art to prevent detachment and erosion. However, as these methods are only realizable if sufficient space can be secured for an arc-extinguishing chamber, or if sufficient dimensions of the support material can be secured, these methods are not necessarily adoptable if a device is to be reduced in size. [Solution] The present invention is characterized in that an electric contact point and a contact element having improved resistance to erosion are achieved by a reduction in the amount of erosion at the electric contact point, comprising pasting onto the surface of a pure silver layer on the back side of a contact point where detachment and erosion readily progress, a copper or a copper alloy having excellent electric conductivity, heat conductivity and mechanical strength as a functional layer, thereby conferring to the functional layer a function of transmitting to a support material the heat generated when opening/closing the electric contact, a function of shortening the duration of chattering, and a function of preventing detachment and erosion, or the like, by maintaining the strength of the bond with the support material.
Owner:TOKURIKI HONTEN

Method of three-dimensional vane modification design of torque converter based on conformal transformation

The invention discloses a three-dimensional vane shape modification design method of a hydraulic torque converter based on conformal transformation, which solves the problems of low precision and serious distortion of three-dimensional vane modification of the traditional conformal transformation method, and belongs to the transmission technology of construction machinery. field. The method provided by the invention includes: step 1: giving the orthographic projection of the three impeller blades of the hydraulic torque converter and the circulating circle of the hydraulic torque converter; step 2: finding the edge of the inlet and outlet of the blade on the orthographic projection of the blade; step 3: Make a multi-cylindrical expansion diagram of the blade curve; Step 4: Transform the blade angle, find the coordinates of the new blade, and obtain a new blade space curve; Step 5: The blade space curve is stitched into a three-dimensional blade entity by constructing a ruled surface. The method provided by the invention can greatly reduce the error caused by the traditional conformal transformation mapping, solve the disadvantage of serious distortion of the blade angle in three-dimensional change, and at the same time ensure the accuracy of the shape of the blade head without the disadvantage of accumulating errors.
Owner:JILIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products