Responsive To Rate Of Change Patents (Class 164/154.3)
  • Patent number: 9782824
    Abstract: Continuous casting equipment includes a casting product reduction apparatus and a casting product drawing apparatus, the casting product reduction apparatus including a pair of casting product reduction rolls that sandwich and apply pressure to a casting product and being configured to apply reduction to the casting product, the casting product drawing apparatus being provided in a following stage of the casting product reduction apparatus and configured to sandwich and draw the casting product with a pair of casting product drawing rolls. At least one of the pair of casting product reduction rolls includes a large-diameter part that projects radially outward in an axial-direction center region and applies pressure to a width-direction center region of the casting product. The casting product that is subjected to reduction by the casting product reduction apparatus has a depressed part corresponding to the large-diameter part.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: October 10, 2017
    Assignee: NIPPON STEEL AND SUMITOMO METAL CORPORATION
    Inventors: Shuntaro Imai, Yasuo Maruki, Daisuke Miki, Hiroaki Uchiyama
  • Patent number: 7191818
    Abstract: A monitor system for monitoring a molding machine that includes a vertically-movable supporting frame, a pattern carrier on which a pattern is placed, a flask placed on a leveling frame, a sand hopper provided with an optional an air-jet chamber, sand-charging nozzles disposed around a plurality of squeeze feet that is disposed at a lower end of the sand hopper, and a filling frame connected to filling-frame cylinders and surrounding the squeeze feet and the sand-charging nozzles from their outside, the filling frame to be placed on the flask when lowered, comprising at least one sensor connected to the molding machine, for detecting an attribute of the molding sand as required and data analyzing monitor means connected to the sensor, for receiving data that correspond to the attribute detected by the sensor and analyzing the attribute and displaying the results of the analysis.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: March 20, 2007
    Assignee: Sintokogio, Ltd.
    Inventors: Minoru Hirata, Yutaka Hadano, Tsuyoshi Sakai
  • Patent number: 6957687
    Abstract: A monitor system for monitoring a molding machine that includes a vertically-movable supporting frame, a pattern carrier on which a pattern is placed, a flask placed on a leveling frame, a sand hopper provided with an optional an air-jet chamber, sand-charging nozzles disposed around a plurality of squeeze feet that is disposed at a lower end of the sand hopper, and a filling frame connected to filling-frame cylinders and surrounding the squeeze feet and the sand-charging nozzles from their outside, the filling frame to be placed on the flask when lowered, comprising at least one sensor connected to the molding machine, for detecting an attribute of the molding sand as required and data analyzing monitor means connected to the sensor, for receiving data that correspond to the attribute detected by the sensor and analyzing the attribute and displaying the results of the analysis.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: October 25, 2005
    Assignee: Sintokogio, Ltd.
    Inventors: Minoru Hirata, Yutaka Hadano, Tsuyoshi Sakai, Kenji Mizuno
  • Patent number: 6818073
    Abstract: Steel strips and methods for producing steel strips are provided. In an illustrated embodiment, a method includes continuously casting molten low carbon steel into a strip of no more than 5 mm thickness having austenite grains that are coarse grains of 100-300 micron width; and providing desired yield strength in the cast strip by cooling the strip to transform the austenite grains to ferrite in a temperature range between 850° C. and 400° C. at a selected cooling rate of at least 0.01° C./sec to produce a microstructure that provides a strip having a yield strength of at least 200 MPa. The low carbon steel produced desired microstructure.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: November 16, 2004
    Assignee: Nucor Corporation
    Inventors: Lazar Strezov, Kannappar Mukunthan, Walter Blejde, Rama Mahapatra
  • Patent number: 6516862
    Abstract: A method of fabricating a porous metal structure of a molten liquid metal within a casting chamber to form a porous solid structure upon controlled chamber cooling and depressurization. The method includes provision of a pressurizable stationary mold casting chamber having a gas pressure release valve, a gas pressure measurement sensor, and a plurality of sites with respective surface-temperature or heat flux sensors and respective independently operable temperature controllers for regulating each respective site temperature. A data base driven microprocessor receives pressure and temperature data and selectively and independently adjusts pressure and temperature in accord with algorithmic commands relative required pressure reduction for pore formation and cooling for solidification to chosen extents of porosity and of solidification over a time period terminating upon porous solid-structure fabrication.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: February 11, 2003
    Assignee: Northrop Grumman Corporation
    Inventor: John F. Klein