Maintaining Molten Metal Temperature Patents (Class 65/99.3)
  • Patent number: 8863554
    Abstract: A float bath for manufacturing a float glass includes a brick assembly composed of a plurality of bricks storing a molten metal so that a float glass is capable of moving forward while floating on the molten metal, a bottom casing for forming an outer side of the brick assembly, and an air blower installed away from the bottom casing to supply a cooling air toward the bottom casing. The air blower includes a plurality of nozzles having a diameter of about 30 mm and arranged with a pitch of about 250 mm to about 300 mm in order to cool the bottom casing to a predetermined temperature.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: October 21, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Won-Jae Moon, Yang-Han Kim, Sang-Oeb Na, Jeong-Deok Kim, Heui-Joon Park, Jin Han, Woo-Hyun Kim, Dong-Shin Shin, Jae-Han Jun
  • Publication number: 20140174130
    Abstract: Disclosed is a float bath which allows easy temperature control according to an internal position, and a glass manufacturing apparatus and glass manufacturing method including the float bath. The float bath includes a plurality of heaters provided at an upper portion of the float bath to supply heat into the float bath, and a shield provided between predetermined heaters among the plurality of heaters to block heat transfer therebetween.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Kyoung-Hoon MIN, Ye-Hoon IM, Su-Chan PARK, Sang-Oeb NA, Won-Jae MOON
  • Publication number: 20140024517
    Abstract: The present invention relates to a float glass manufactured by causing a molten glass continuously supplied onto a molten tin in a bath to flow on the molten tin toward an outlet of the bath, in which the float glass satisfies the following formula (1). According to the present invention, a high-quality float glass and a method for manufacturing the same are provided. [ Math . ? 1 ] ? 0 Da ? ( Ca - C ? ( x ) ) ? ? ? x Ca × D × 100 ? 0.
    Type: Application
    Filed: September 20, 2013
    Publication date: January 23, 2014
    Applicant: Asahi Glass Company, Limited
    Inventors: Yasuo HAYASHI, Takenori MIURA, Satoshi MIYASAKA
  • Patent number: 8297078
    Abstract: A float bath for manufacturing a float glass includes a brick assembly composed of a plurality of bricks to store a molten metal so that a float glass is capable of moving forward while floating on the molten metal, a bottom casing for forming an outer side of the brick assembly, and an air blower installed away from the bottom casing to supply a cooling air toward the bottom casing. The air blower is disposed so that the cooling air is injected toward gaps between the bricks.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: October 30, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Won-Jae Moon, Yang-Han Kim, Sang-Oeb Na, Jeong-Deok Kim, Heui-Joon Park, Jin Han, Woo-Hyun Kim, Dong-Shin Shin, Jae-Han Jun
  • Patent number: 8136374
    Abstract: Disclosed is a float bath system for manufacturing a float glass, comprising a block assembly having a plurality of blocks connected to each other and configured to store a molten metal therein; a steel casing surrounding the block assembly; an air blower capable of supplying air to the steel casing; and a cooling water spray member capable of spraying a cooling water onto the steel casing. And, a cooling method of said float bath system is disclosed.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: March 20, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Won-Jae Moon, Sang-Oeb Na, Yang-Han Kim, Hyung-Young Oh, Young-Sik Kim, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee
  • Publication number: 20120040817
    Abstract: A float bath for manufacturing a float glass includes a brick assembly composed of a plurality of bricks to store a molten metal so that a float glass is capable of moving forward while floating on the molten metal, a bottom casing for forming an outer side of the brick assembly, and an air blower installed away from the bottom casing to supply a cooling air toward the bottom casing. The air blower is disposed so that the cooling air is injected toward gaps between the bricks.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 16, 2012
    Inventors: Won-Jae MOON, Yang-Han Kim, Sang-Oeb Na, Jeong-Deok Kim, Heui-Joon Park, Jin Han, Woo-Hyun Kim, Dong-Shin Shin, Jae-Han Jun
  • Publication number: 20120040818
    Abstract: A float bath for manufacturing a float glass includes a brick assembly composed of a plurality of bricks storing a molten metal so that a float glass is capable of moving forward while floating on the molten metal, a bottom casing for forming an outer side of the brick assembly, and an air blower installed away from the bottom casing to supply a cooling air toward the bottom casing. The air blower includes a plurality of nozzles having a diameter of about 30 mm and arranged with a pitch of about 250 mm to about 300 mm in order to cool the bottom casing to a predetermined temperature.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 16, 2012
    Inventors: Won-Jae MOON, Yang-Han Kim, Sang-Oeb Na, Jeong-Deok Kim, Heui-Joon Park, Jin Han, Woo-Hyun Kim, Dong-Shin Shin, Jae-Han Jun
  • Patent number: 8071494
    Abstract: The present invention provides a glass substrate for flat panel display in which yellowing occurring in a case of forming silver electrodes on glass substrate surface is inhibited. A glass substrate for flat panel display, which is formed by a float method, which has a composition consisting essentially of, in terms of oxide amount in mass %: SiO2 50 to 72%, Al2O3 0.15 to 15%, MgO + CaO + SrO + BaO 4 to 30%, Na2O more than 0% and at most 10%, K2O 1 to 21%, Li2O 0 to 1%, Na2O + K2O + Li2O 6 to 25%, ZrO2 0 to 10%, and Fe2O3 0.0725 to 0.15%; and wherein the average Fe2+ content in a surface layer of the glass substrate within a depth of 10 ?m from the a top surface is at most 0.0725% in terms of Fe2O3 amount.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: December 6, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Kensuke Nagai, Tetsuya Nakashima, Kei Maeda, Ryoji Akiyama, Akira Kondo, Daiki Akie
  • Publication number: 20110283740
    Abstract: Disclosed is a float bath system for manufacturing a float glass, comprising a block assembly having a plurality of blocks connected to each other and configured to store a molten metal therein; a steel casing surrounding the block assembly; an air blower capable of supplying air to the steel casing; and a cooling water spray member capable of spraying a cooling water onto the steel casing. And, a cooling method of said float bath system is disclosed.
    Type: Application
    Filed: July 28, 2011
    Publication date: November 24, 2011
    Inventors: Won-Jae MOON, Sang-Oeb NA, Yang-Han KIM, Hyung-Young OH, Young-Sik KIM, Kil-Ho KIM, Heui-Joon PARK, Chang-Hee LEE
  • Patent number: 8051677
    Abstract: Disclosed is a float bath system for manufacturing a float glass, comprising a block assembly having a plurality of blocks connected to each other and configured to store a molten metal therein; a steel casing surrounding the block assembly; an air blower capable of supplying air to the steel casing; and a cooling water spray member capable of spraying a cooling water onto the steel casing. And, a cooling method of said float bath system is disclosed.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 8, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Won-Jae Moon, Sang-Oeb Na, Yang-Han Kim, Hyung-Young Oh, Young-Sik Kim, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee
  • Patent number: 7743630
    Abstract: A method of making float glass is provided that results in a transparent conductive oxide (TCO) films being integrally formed with the float glass at the tin side thereof. In particular, a donor(s) such as antimony and/or an oxide thereof is added to the glass batch during the process of manufacture. The donor diffuses into the tin oxide inclusive layer adjacent the tin bath during the “float” manufacturing process, thereby increasing the number of electrons in the tin oxide inclusive layer so as to form a TCO film at the tin side of the glass.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: June 29, 2010
    Assignee: Guardian Industries Corp.
    Inventors: Alexey Krasnov, Ksenia A. Landa, Leonid M. Landa
  • Publication number: 20100083704
    Abstract: Methods and apparatus for manufacturing glass sheets that comprise the use of platinum group metal alloy or metal-alloy-clad vessels or conduits having alloy compositions including oxidizable species capable of undergoing redox reactions with molten glass components to suppress oxygen blister formation at glass contact surfaces.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 8, 2010
    Inventors: Paul Richard Grzesik, David Myron Lineman, David Kenneth Vaughn
  • Publication number: 20080223079
    Abstract: The purpose of the present invention is to provide an apparatus for producing a float glass capable of controlling a temperature rise in the bottom casing to prevent the bottom casing from being corroded by reaction with the molten metal released therefrom. The bottom casing of a flat glass producing apparatus is comprised of a plurality of non-magnetic casing pieces that are electrically insulated from each other by means of a non-woven fabric of silica glass having non-affinity for tin whereby in comparison with a flat glass producing apparatus having the bottom casing of a united structure, an induced current can be controlled thereby prohibiting a temperature rise in the bottom casing. With such structure, tin penetrating in joint portions of the bottom bricks can be prevented from melting and the corrosion of the bottom casing by reaction with the released molten tin can be prevented.
    Type: Application
    Filed: May 21, 2008
    Publication date: September 18, 2008
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Toru KAMIHORI, Motoichi Iga, Tetsushi Takiguchi
  • Publication number: 20040107732
    Abstract: A float glass chamber and related methods comprising a hot section having an atmosphere in at least the lower plenum comprises less than 3 percent hydrogen based on volume and a cold section, wherein the boundary line between the hot section and the cold section is where the temperature of the glass falls below a threshold temperature
    Type: Application
    Filed: September 26, 2003
    Publication date: June 10, 2004
    Inventors: Charlene S. Smith, George A. Pecoraro