2 results about "Volume Percentage" patented technology

This invention discloses a method, apparatus, and electronic equipment for calculating the operating point of a slurry circulation pump. The method includes: acquiring the attribute information and operating data of the slurry circulation pump, the first relative density of limestone solids, and the second relative density of the limestone slurry to be transported; calculating the hydraulic performance of the slurry when the slurry circulation pump transports limestone slurry based on the attribute information, operating data, first relative density, and second relative density; acquiring the particle size of all particles in the limestone slurry and the volume percentage and weight percentage concentration of the limestone slurry; calculating the pipeline characteristics of the slurry circulation pump based on the particle size, volume percentage concentration, and weight percentage concentration; and calculating the operating point based on the hydraulic performance of the slurry and pipeline characteristics corresponding to the slurry circulation pump transporting different flow rates of clean water. This invention, through indirect calculation, effectively overcomes the limitation of existing technologies that cannot perform on-site measurements and are difficult to determine the true operating point, providing strong data support for subsequent energy-saving renovations.

The present application relates to a kind of high-strength, high impact toughness graphene reinforced copper-based composite material and its preparation method, the composite material is obtained by graphene and copper silver alloy composite, composite material contains the discontinuous desolvation organization of volume percentage content 38~86%, discontinuous desolvation organization is mainly composed of sub-micron scale Ag particle and Cu-rich matrix phase, part Ag particle is nanometer scale rod and densely distributed in discontinuous desolvation organization.In room temperature condition, the graphene reinforced copper-based composite material provided by the present application reaches 700~900MPa in tensile strength, elastic modulus is 125~138GPa, conductivity reaches 84~93%IACS, its linear expansion coefficient is 11.0×10 ‑6 ~12.5×10 ‑6 ℃ ‑1 At 20 DEG C, impact toughness is 80~110J·cm ‑2 , and the comprehensive performance is excellent.