Patents by Inventor Engang WANG

Engang WANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High-strength and high-conductivity Cu—Ag—Sc alloy and preparation method thereof
    Patent number: 11427903
    Abstract: Provided are a high-strength and high-conductivity Cu—Ag—Sc alloy and a preparation method thereof. The preparation method includes the following steps: (1) placing metal Ag and metal Sc in an electric-arc furnace and performing smelting under a vacuum condition, performing cooling to normal temperature in the furnace to obtain an Ag—Sc intermediate alloy; (2) placing the Ag—Sc intermediate alloy, an electrolytic copper and the metal Ag in an induction furnace and performing heating to 1200-1300° C. under a vacuum condition, keeping at the temperature for 10-60 min for smelting, then performing casting and cooling to normal temperature in the furnace to obtain ingots; (3) heating the ingots to 700-850° C. under an inert atmosphere, then performing water quenching to normal temperature to obtain heat-treated ingots; and (4) heating the heat-treated ingots to 400-500° C. under an inert atmosphere, then performing air cooling to normal temperature to obtain the high-strength and high-conductivity Cu—Ag—Sc.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: August 30, 2022
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Engang Wang, Bailing An, Lin Zhang
  • HIGH-STRENGTH AND HIGH-CONDUCTIVITY CU-AG-SC ALLOY AND PREPARATION METHOD THEREOF
    Publication number: 20210340658
    Abstract: Provided are a high-strength and high-conductivity Cu—Ag—Sc alloy and a preparation method thereof. The preparation method includes the following steps: (1) placing metal Ag and metal Sc in an electric-arc furnace and performing smelting under a vacuum condition, performing cooling to normal temperature in the furnace to obtain an Ag—Sc intermediate alloy; (2) placing the Ag—Sc intermediate alloy, an electrolytic copper and the metal Ag in an induction furnace and performing heating to 1200-1300° C. under a vacuum condition, keeping at the temperature for 10-60 min for smelting, then performing casting and cooling to normal temperature in the furnace to obtain ingots; (3) heating the ingots to 700-850° C. under an inert atmosphere, then performing water quenching to normal temperature to obtain heat-treated ingots; and (4) heating the heat-treated ingots to 400-500° C. under an inert atmosphere, then performing air cooling to normal temperature to obtain the high-strength and high-conductivity Cu—Ag—Sc.
    Type: Application
    Filed: April 23, 2020
    Publication date: November 4, 2021
    Inventors: Engang WANG, Bailing AN, Lin ZHANG