Patents by Inventor Guangkui HU

Guangkui HU 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).

  • Patent number: 11377712
    Abstract: A hot dipped high manganese steel and a manufacturing method therefor. The high manganese steel comprises a steel base plate and a coating on the surface of the steel base plate. The core of the steel base plate is austenite. The surface layer of the steel base plate is a ferrite fine grain layer. The ferrite fine grain layer comprises an oxide of Al. Furthermore, the steel base plate of the hot dipped high manganese steel comprises, in mass percentages, 10 to 30% of Mn element, 1 to 2% of Al element, and 0.4 to 0.8% of C element. The manufacturing method comprises: 1) manufacturing strip steel; 2) primary annealing and acid washing; 3) secondary annealing and hot dipping.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: July 5, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xinyan Jin, Yong Zhong, Guangkui Hu
  • Patent number: 11326243
    Abstract: Low-density hot dip galvanized steel, comprising a steel substrate (1) located at a core portion and a coating layer (3) located on the surface. An interface layer is disposed between the steel substrate (1) and the coating layer (3), the interface layer comprises an iron particle layer (4), iron particles dispersed on the steel substrate (1) and covering the steel substrate (1) are disposed in the iron particle layer (4), and the iron particles are covered by a first inhibition layer (5). The low-density hot dip galvanized steel contains element Al in a mass percentage of 3.0% to 7.0%. Correspondingly, the present invention also comprises a manufacturing method for the low-density hot dip galvanized steel. The low-density hot dip galvanized steel has a low density, a high strength and high galvanizability and coating layer adhesion.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: May 10, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xinyan Jin, Qi Yang, Li Wang, Guangkui Hu
  • Patent number: 11313021
    Abstract: A hot dipped medium manganese steel and a manufacturing method therefor. The medium manganese steel comprises a steel base plate and a coating on the surface of the steel base plate; the mass percentages of the components in the hot dipped medium manganese steel are: C: 0.1 to 0.3%, Si: 0.1 to 2.0%, Mn: 5 to 12%, Al: 1 to 2%, P?0.02%, S?0.02%, N?0.005%, and the remaining being Fe and unavoidable impurities; the core structure is ferrite and austenite, and the surface layer of the steel base plate is a ferrite layer.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: April 26, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xinyan Jin, Yulong Zhang, Guangkui Hu
  • Publication number: 20200325568
    Abstract: Low-density hot dip galvanized steel, comprising a steel substrate (1) located at a core portion and a coating layer (3) located on the surface. An interface layer is disposed between the steel substrate (1) and the coating layer (3), the interface layer comprises an iron particle layer (4), iron particles dispersed on the steel substrate (1) and covering the steel substrate (1) are disposed in the iron particle layer (4), and the iron particles are covered by a first inhibition layer (5). The low-density hot dip galvanized steel contains element Al in a mass percentage of 3.0% to 7.0%. Correspondingly, the present invention also comprises a manufacturing method for the low-density hot dip galvanized steel. The low-density hot dip galvanized steel has a low density, a high strength and high galvanizability and coating layer adhesion.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 15, 2020
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xinyan JIN, Qi YANG, Li WANG, Guangkui HU
  • Publication number: 20200216927
    Abstract: A hot dipped high manganese steel and a manufacturing method therefor. The high manganese steel comprises a steel base plate and a coating on the surface of the steel base plate. The core of the steel base plate is austenite. The surface layer of the steel base plate is a ferrite fine grain layer. The ferrite fine grain layer comprises an oxide of Al. Furthermore, the steel base plate of the hot dipped high manganese steel comprises, in mass percentages, 10 to 30% of Mn element, 1 to 2% of Al element, and 0.4 to 0.8% of C element. The manufacturing method comprises: 1) manufacturing strip steel; 2) primary annealing and acid washing; 3) secondary annealing and hot dipping.
    Type: Application
    Filed: April 20, 2018
    Publication date: July 9, 2020
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xinyan JIN, Yong ZHONG, Guangkui HU
  • Publication number: 20200157671
    Abstract: A hot dipped medium manganese steel and a manufacturing method therefor. The medium manganese steel comprises a steel base plate and a coating on the surface of the steel base plate; the mass percentages of the components in the hot dipped medium manganese steel are: C: 0.1 to 0.3%, Si: 0.1 to 2.0%, Mn: 5 to 12%, Al: 1 to 2%, P?0.02%, S?0.02%, N?0.005%, and the remaining being Fe and unavoidable impurities; the core structure is ferrite and austenite, and the surface layer of the steel base plate is a ferrite layer.
    Type: Application
    Filed: April 20, 2018
    Publication date: May 21, 2020
    Applicant: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Xinyan JIN, Yulong ZHANG, Guangkui HU
  • Patent number: 10287659
    Abstract: A high-formability and super-strength cold-rolled steel sheet and a manufacturing method thereof. The weight percentage of its components is: C 0.15-0.25%, Si 1.00-2.00%, Mn 1.50-3.00%, P?0.015%, S?0.012%, Al 0.03-0.06%, N?0.008%, and the rest are Fe and inevitable impurities. The manufacturing method comprises the following steps: 1) smelting and casting; 2) heating to 1170˜1230° C. and performing thermal insulation; 3) performing hot rolling, the finish rolling temperature being 880±30° C., and coiling at 550˜650° C.; and 4) performing acid washing, cold rolling, and annealing, the cold rolling reduction being 40-60%, annealing at 860-920° C., and performing slow cooling to 690-750° C. with the cooling rate of 3˜10° C./s; performing rapid cooling at 240˜320° C., with the cooling speed ?50° C./s, then heating to 360˜460° C., and performing thermal insulation for 100˜500 s to cool to the room temperature at last.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 14, 2019
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Yong Zhong, Li Wang, Weijun Feng, Wei Xiong, Jianjun Zhi, Guangkui Hu
  • Publication number: 20150337416
    Abstract: A high-formability and super-strength cold-rolled steel sheet and a manufacturing method thereof. The weight percentage of its components is: C 0.15-0.25%, Si 1.00-2.00%, Mn 1.50-3.00%, P?0.015%, S?0.012%, Al 0.03-0.06%, N?0.008%, and the rest are Fe and inevitable impurities. The manufacturing method comprises the following steps: 1) smelting and casting; 2) heating to 117˜1230° C. and performing thermal insulation; 3) performing hot rolling, the finish rolling temperature being 880+30° C., and coiling at 550˜650° C.; and 4) performing acid washing, cold rolling, and annealing, the cold rolling reduction being 40-60%, annealing at 860-920° C., and performing slow cooling to 690-750° C. with the cooling rate of 3˜10° C./s; performing rapid cooling at 240˜320° C., with the cooling speed ?50° C./s, then heating to 360˜460° C., and performing thermal insulation for 100˜500 s to cool to the room temperature at last.
    Type: Application
    Filed: February 21, 2013
    Publication date: November 26, 2015
    Inventors: Yong ZHONG, Li WANG, Weijun FENG, Wei XIONG, Jianjun ZHI, Guangkui HU