Patents by Inventor Jea-Sook CHUNG

Jea-Sook CHUNG 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: 10286432
    Abstract: A continuous casting and rolling apparatus according to one embodiment of the present invention comprises: a continuous casting apparatus for producing a steel sheet; a roller, linked to the continuous casting apparatus, for receiving the steel sheet; and a push heat unit, connected to the continuous casting apparatus and/or the roller, for selectively carrying outing heating work or removal work with respect to a portion of the steel sheet. Also, a continuous casting and rolling method according to another embodiment of the present invention may comprise: a continuous casting step for producing a steel sheet; and a selective performance step for selectively carrying out heating work or removal work with respect to a portion of the steel sheet.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: May 14, 2019
    Assignee: POSCO
    Inventors: Jea-Sook Chung, Il-Sin Bae, Suk-Cheol Song, Young-Ju Ko, Kyeong-Mi Park, Jong-Hwan Lee
  • Patent number: 10265744
    Abstract: A hot rolling device, according to one embodiment of the present invention, may comprise: a cast part supply portion for producing a cast part; a hot roller, linked to the cast part supply portion, for receiving and hot-rolling the cast part; and a heating unit, arranged between the cast part supply portion and the hot roller, for reheating an outer surface portion in the widthwise direction of the cast part while latent heat is maintained in the center portion of the widthwise direction of the cast part from preheating.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 23, 2019
    Assignee: POSCO
    Inventors: Jea-Sook Chung, Il-Sin Bae, Young-Ju Ko, Kyeong-Mi Park, In-Jae Lee, Choong-Yun Lee, Suk-Cheol Song, Seong-Yeon Kim, Jong-Yeon Hwang, Sang-Hyeon Lee
  • Publication number: 20180297092
    Abstract: Provided is an endless rolling apparatus and method, which have improved cooling conditions for producing advanced high strength steel. The endless rolling apparatus includes: a continuous casting machine for casting a slab; and a cooling bed having at least one piece of water-cooling equipment and at least one rolling mill continuously connected to the continuous casting machine, wherein, in the cooling bed, an initial position (S) at which the water-cooling equipment is provided so as to manufacture advanced high strength steel through at least one water-cooling is defined by mathematical formula 1. Here, H is the thickness (mm) of a slab, V is the casting speed (m/sec) of the slab, h is the product thickness (mm), and t is the target arrival time (sec) until entry into the cooling bed.
    Type: Application
    Filed: June 27, 2016
    Publication date: October 18, 2018
    Inventors: Jea-Sook CHUNG, Suk-Cheol SONG, Kyo-Sun PARK, Yong-Ki KIM, Yong-Seok CHO, Young-Sup SHIM, Young-Ju KO, Kyeong-Mi PARK
  • Publication number: 20180161837
    Abstract: Provided is a continuous casting and rolling method, which includes: a continuous casting operation of producing a slab; and a rolling operation of pressing the slab after a front end portion of the slab passes a first rolling stand into which the front end portion of the slab, which is provided as a continuous body to the slab produced in the continuous casting operation, initially enters.
    Type: Application
    Filed: September 18, 2015
    Publication date: June 14, 2018
    Inventors: Young-Ju KO, Jea-Sook CHUNG, Suk-Cheol SONG, Kyeong-Mi PARK, Yong-Seok CHO, Young-Sup SHIM
  • Publication number: 20160339490
    Abstract: A continuous casting and rolling apparatus according to one embodiment of the present invention comprises: a continuous casting apparatus for producing a steel sheet; a roller, linked to the continuous casting apparatus, for receiving the steel sheet; and a push heat unit, connected to the continuous casting apparatus and/or the roller, for selectively carrying outing heating work or removal work with respect to a portion of the steel sheet. Also, a continuous casting and rolling method according to another embodiment of the present invention may comprise: a continuous casting step for producing a steel sheet; and a selective performance step for selectively carrying out heating work or removal work with respect to a portion of the steel sheet.
    Type: Application
    Filed: November 12, 2014
    Publication date: November 24, 2016
    Inventors: Jea-Sook CHUNG, Il-Sin BAE, Suk-Cheol SONG, Young-Ju KO, Kyeong-Mi Park, Jong-Hwan LEE
  • Publication number: 20160318096
    Abstract: A continuous casting and rolling apparatus according to one embodiment of the present invention provides: a continuous caster for generating a steel sheet; a first rolling unit associated with the continuous caster; and a second rolling unit which is spaced apart in the outlet of the first rolling unit and comprises: a rolling mill for pressing down the steel sheet; and a cutter for cutting a portion of the steel sheet, wherein the cutter is spaced from the second rolling unit by a length corresponding to the length of the steel sheet discharged in an at least discontinuous rolling mode, and may comprise a cut withdrawal unit provided between the first rolling unit and the second rolling unit.
    Type: Application
    Filed: December 2, 2014
    Publication date: November 3, 2016
    Applicant: POSCO
    Inventors: Seong-Yeon KIM, Young-Ju KO, Il-Sin BAE, Choong-Yun LEE, In-Jae LEE, Jea-Sook CHUNG, Sang-Hyeon LEE
  • Publication number: 20160318081
    Abstract: A hot rolling device, according to one embodiment of the present invention, may comprise: a cast part supply portion for producing a cast part; a hot roller, linked to the cast part supply portion, for receiving and hot-rolling the cast part; and a heating unit, arranged between the cast part supply portion and the hot roller, for reheating an outer surface portion in the widthwise direction of the cast part while latent heat is maintained in the center portion of the widthwise direction of the cast part from preheating.
    Type: Application
    Filed: December 26, 2013
    Publication date: November 3, 2016
    Applicants: POSCO, POSCO
    Inventors: Jea-Sook CHUNG, Il-Sin BAE, Young-Ju KO, Kyeong-Mi PARK, In-Jae LEE, Choong-Yun LEE, Suk-Cheol SONG, Seong-Yeon KIM, Jong-Yeon HWANG, Sang-Hyeon LEE