5 results about "Metal lattice" patented technology

The present application relates to the technical field of power hardware processing and manufacturing, and particularly relates to a cross arm production process. The process comprises: after a fluid-incompressible pressure-maintaining rigid boundary is constructed by pressing a main hydraulic cylinder, starting a microseismic device to directionally inject high-frequency mechanical microseismic kinetic energy into the cross arm; synchronously extracting a back pressure feedback value in a sealed loop and monitoring a dynamic attenuation slope thereof in real time; when the slope is detected to be flat and to be in an attenuation stagnation of internal stress release, under a timing safety interlock protection mechanism for executing confirmation of mechanical wave calming, triggering a high-frequency electrically-controlled proportional overflow valve to execute millisecond-level transient micro-pressure relief and extremely fast pressure reconstruction, so as to provide a transient volume yielding space for metal lattice rearrangement; and finally completing final state confirmation when the absolute value of the back pressure is stabilized at a zero rebound threshold. The present application can solve or at least alleviate the secondary rebound problem caused by lattice distortion residual strain energy accumulation in the forming of thick-walled metal components, and improve the production quality of the cross arm.

Metal(s) (including various alloys, such as INCONEL® superalloys) are characterized by having carbon disposed within the metal lattice structure thereof. The carbon is primarily, or entirely, present at interstitial sites of the metal lattice, and may be present in amounts ranging from about 1.5 wt % to about 90 wt %. Carbon may be present in the form of graphene, which may be characterized as one or more coherent, planar layers of graphene. The carbon, moreover, forms non-polar covalent bonds with both metal atoms of the lattice and other carbon atoms present in the lattice. This facilitates substantially homogeneous dispersal of the carbon throughout the resultant material, conveying unique and advantageous properties such as strength-to-weight ratio, density, mechanical toughness, sheer strength, flex strength, hardness, anti-corrosiveness, electrical and / or thermal conductivity, etc. as described herein. In some approaches, the composition of matter may be powderized, or the powder may be pelletized.

This invention relates to a programmable thermal protection ceramic-metal lattice superstructure for spacecraft in extreme space environments, belonging to the field of spacecraft thermal protection technology. It comprises multiple body-centered cubic lattice cells arranged periodically in three-dimensional space to form an isotropic three-dimensional network structure. Each body-centered cubic lattice cell includes eight lattice connecting rods, which are rod-shaped structures. The eight connecting rods intersect at a central point, and any two adjacent connecting rods have the same angle relative to the central point, forming a cubic unit configuration body-centered cubic lattice cell. This invention solves the problem of traditional thermal protection structures failing to simultaneously address heat dissipation capacity and thermal shock protection, providing an innovative solution for thermal protection of spacecraft in extreme space environments.

This invention discloses an integrated die-casting machine for aluminum alloy vehicle frames, relating to the field of die-casting equipment technology. It includes a die-casting machine body, with a vibration mechanism for assisting demolding installed on the side of the lower mold body. A lifting mechanism for assisting casting demolding is installed at the bottom of the die-casting machine body. A translation mechanism for pushing the casting away from the mold is installed on the side of the lifting mechanism. A release mechanism for assisting casting lifting is also installed inside the lifting mechanism. By setting up the vibration mechanism, a hammer periodically impacts the side of the lower mold body of the die-casting machine body. High-frequency mechanical vibration reduces the static friction and adhesion between the casting and the mold cavity. Vibration can cause minute displacements in the metal lattice, eliminating stress concentration, thereby improving the fluidity and demolding performance of the casting. This not only reduces mechanical damage to the mold and casting during forced ejection but also reduces demolding resistance, creating conditions for subsequent ejection actions.

The application belongs to the technical field of advanced composite materials and structure engineering, and particularly relates to a lightweight anti-seismic composite material and a preparation method thereof. The material is a sandwich structure, comprising upper and lower panels and an intermediate core layer. The upper and lower panels are composed of a resin matrix and carbon fibers in which metal nanoparticles are in-situ compounded. The intermediate core layer is prepared by laser selective melting or precise sheet metal folding to obtain a negative Poisson's ratio metal lattice core layer and then subjected to surface roughening treatment. A core-shell damping emulsion is prepared on the surface of the core layer by a step-by-step emulsion polymerization method, and a functional damping coating is formed by coating and solidification. The panels and the core layer are compounded and solidified by a vacuum-assisted resin transfer molding process. Through multi-scale collaborative design, the lightweight, high strength, high damping and excellent impact resistance are synergistically optimized, the structure has high integrity and high designability, and is suitable for building seismic mitigation, lightweight transportation and high-end equipment protection.