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

91results about How to "Helps to reduce weight" patented technology

High carbon steel pipe having excellent cold workability, machinability, and quenching properties, and method for manufacturing same

Provided are a high carbon resistance-welded steel pipe having excellent cold workability, machinability, and quenching properties; and a method for manufacturing the same. Specifically, a high carbon steel pipe having a composition containing, by mass, 0.25 to 0.60% of C, 0.01 to 2.0% of Si, 0.2 to 3.0% of Mn, 0.001 to 0.1% of Al, 0.001 to 0.05% of P, 0.02% or less of S, 0.0010 to 0.0100% of N, 0.0003 to 0.0050% of B, and 0.0001 to 0.0050% of Ca, with the remainder made up by residual Fe and unavoidable impurities, is used as a material steel pipe. Heating and soaking is performed to Ac3 transformation point or above, and diameter-reducing rolling is subsequently performed at a rolling finishing temperature of 900°C or above (Ac1 transformation point) and a cumulative diameter reduction ratio of 30 to 70% in a temperature range no greater than 900°C. This makes it possible to obtain, without performing spheroidizing annealing, a structure in which cementite particles having an average particle diameter (d) from 0.1 mum to less than 0.5 mum and in which the average distance (L) between the surfaces of adjacent cementite particles is 0.5 to 10 mum are dispersed in a ferrite phase. In particular, machinability is significantly improved.
Owner:JFE STEEL CORP

Large-scale sparse array antenna efficient comprehensive method based on adaptive probability learning

The invention discloses a large-scale sparse array antenna efficient comprehensive method based on adaptive probability learning, and solves the problems of poor radiation characteristics and low efficiency caused by poor gradient density distribution of antenna units in an array aperture and high side lobe of a directional diagram in large-scale array antenna sparse array synthesis. According tothe method, the layout of a sparse array is combined with selection probability estimation of antenna units, an array comprehensive problem is combined with optimization of an adaptive probability learning model, and the method comprises the implementation steps of randomly initializing antenna array element distribution, and constructing an initial probability estimation model; rapidly calculating a far-field directional diagram through the excitation coefficient by means of fast Fourier transform; generating a new solution to participate in competition according to the probability model based on a probability learning strategy; adjusting a far-field directional diagram; array element excitation is obtained through fast Fourier transform, and updating the probability model. When the target function requirement is met or the maximum iteration frequency is reached, the optimal sparse array scheme is output, and the comprehensive problem of the large sparse array antenna is solved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Full-aluminum stereo parking equipment frame

The invention discloses a full-aluminum stereo parking equipment frame. The full-aluminum stereo parking equipment frame comprises two or more front vertical columns, two or more rear vertical columns, a front beam, a rear cross beam, two edge longitudinal beams and a middle longitudinal beam. The front beam is transverselyfixed to the top ends of the front vertical columns, the rear cross beam istransversely fixed to the top ends of the rear vertical columns, and profiles used by the front beam and the rear cross beam are II-shaped multi-cavity profiles. Stiffening ribs and reinforcing barsare designed on the inner surfaces of cavities. One ends of the edge longitudinal beams are fixedly connected with the front beam, the other ends of the edge longitudinal beams are fixedly connected with the rear cross beams, and one ends of the middle longitudinal beams are fixedly connected with the front beam. The other ends of the middle longitudinal beams are fixedly connected with the rear cross beam, and the profiles used by the edge longitudinal beams and the middle longitudinal beams are II-shaped triangular multi-cavity aluminum profiles. The II-shaped triangular multi-cavity aluminum profiles can improve the strength and stability of the middle longitudinal beams and the edge longitudinal beams, and the anti-torsion strength of the front beam and the rear cross beam can be reinforced through the II-shaped multi-cavity aluminum profiles with the stiffening ribs. Connecting components can be placed on the abdomens of the II-shaped profiles, thus the II-shaped profiles are conveniently connected with the longitudinal beams and the vertical columns through bolts, and dismounting and mounting are flexible and convenient.
Owner:ALNAN ALUMINIUM CO LTD

Efficient energy absorption device capable of achieving graded collapse

ActiveCN107972613AReduce momentary loadReduce shockBumpersMaximum diameterEnergy absorption
The invention discloses an efficient energy absorption device capable of achieving graded collapse. The efficient energy absorption device comprises a front shell, a rear shell, a gasket, a filler andan elastic piece. The front shell comprises an inner wall, an outer wall and a connecting wall, the connecting wall is formed through forward expansion and extension, being of a horn structure, of the front end of the inner wall, the outer wall covers the connecting wall and the front end of the inner wall, the front end of the outer wall is connected with the front end of the connecting wall, and an annular groove is defined by the outer wall, the connecting wall and the inner wall; the gasket is arranged in the rear shell, so that the internal space of the rear shell is divided into a frontpart and a rear part by the gasket, the filler is arranged in the space of the rear part of the rear shell, the filler is of a hollow structure, and the elastic piece is located in the middle of thefiller; and the inner wall is inserted into the space of the front part of the rear shell, the gasket is pressed by the inner wall and the elastic piece from the two sides correspondingly, and the diameter of the rear shell is between the maximum diameter and the minimum diameter of the connecting wall. The efficient energy absorption device has the advantages that the energy absorption efficiencyis high, the impact acceleration can be decreased, and the structure is simple.
Owner:HUAQIAO UNIVERSITY
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