Abstract: A carburizing device is configured to perform a carburizing treatment on a treatment target, and includes a furnace body, an insulating container provided inside the furnace body, a furnace bed provided inside the insulating container and on which the treatment target is mounted, and a heat source provided inside the insulating container, in which at least surfaces of main components of the furnace bed, the heat source and the insulating container are made of a ceramic material.
Type:
Application
Filed:
July 6, 2016
Publication date:
October 27, 2016
Applicants:
IHI Corporation, IHI Machinery and Furnace Co., Ltd.
Abstract: A device is provided with a measurement window, which is provided in a heat treat furnace and which permits direct visual observation of a surface to be measured of a heat-treated workpiece, and a temperature sensor, which is provided outside the measurement window and which is capable of carrying out noncontact measurement of the surface temperature of the surface to be measured through the measurement window. The temperature sensor has a measurement wavelength range in which the absorptivity by water is low (e.g., 1.95 ?m to 2.5 ?m). Further, the measurement window is composed of a window material having a high transmittance in the measurement wavelength range (e.g., germanium).
Type:
Grant
Filed:
August 27, 2013
Date of Patent:
June 28, 2016
Assignees:
IHI Corporation, IHI Machinery and Furnace Co., Ltd.
Abstract: The mist cooling apparatus (3) includes: a cooling system (30) which includes a nozzle (35, 35A) that sprays cooling liquid in a form of a mist onto a treatment object which has been heated and provided in a cooling furnace (10), and a pump (33) that is driven by a drive source and thereby makes the cooling liquid flow toward the nozzle (35, 35A); and a second cooling system (40) which operates in response to a stoppage of the drive source, and thereby cools the treatment object.
Type:
Grant
Filed:
April 12, 2011
Date of Patent:
June 7, 2016
Assignees:
IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
Inventors:
Kazuhiko Katsumata, Ami Ueda, Shinya Kudo, Takahisa Shimada
Abstract: The invention adopts a mist cooling apparatus (3) that cools a heated treated subject M by spraying a cooling mist thereto, the mist cooling apparatus including: a first nozzle (35) that sprays a cooling mist; and a second nozzle (45) that sprays a cooling mist having a particle diameter smaller than the particle diameter of the cooling mist sprayed from the first nozzle.
Type:
Grant
Filed:
December 10, 2010
Date of Patent:
November 17, 2015
Assignees:
IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
Inventors:
Kazuhiko Katsumata, Ami Ueda, Shinya Kudo, Takahisa Shimada
Abstract: A graphitization furnace (100) includes: split electrodes (122) that are conductive and are provided so as to be freely movable; crucibles (120) that are conductive and that contain carbon powder, with a bottom end portion (122a) of each split electrode (122) being buried in the carbon powder; upper electrodes (190) that are positioned so as to face a split electrode (122); lower electrodes (192) that are positioned so as to face a crucible (120); and a power supply unit (132) that, when a bottom end portion (190a) of an upper electrode (190) is placed in contact with a top end portion (122b) of a split electrode (122) and a top end portion (192a) of a lower electrode (192) is placed in contact with a base portion (120b) of a crucible (120), applies a voltage between the upper electrode (190) and the lower electrode (192).
Type:
Grant
Filed:
May 29, 2012
Date of Patent:
September 22, 2015
Assignees:
IHI CORPORATION, IHI MACHINERY AND FURNACE CO., LTD.
Abstract: A device is provided with a measurement window, which is provided in a heat treat furnace and which permits direct visual observation of a surface to be measured of a heat-treated workpiece, and a temperature sensor, which is provided outside the measurement window and which is capable of carrying out noncontact measurement of the surface temperature of the surface to be measured through the measurement window. The temperature sensor has a measurement wavelength range in which the absorptivity by water is low (e.g., 1.95 ?m to 2.5 ?m). Further, the measurement window is composed of a window material having a high transmittance in the measurement wavelength range (e.g., germanium).
Type:
Application
Filed:
August 27, 2013
Publication date:
February 13, 2014
Applicants:
IHI Machinery and Furnace Co., Ltd., IHI Corporation
Abstract: Graphite is produced from powder as a carbon source by means of a graphitization furnace. The graphitization furnace is comprised of: an electrically conductive crucible including a hollow configured to house the powder; an electrode including a columnar shaft and a head provided at an end of the shaft, the head having a shape selected from the group consisting of a sphere, a hemisphere, a column with a rounded edge, a cone, and a cone with a rounded tip; and a power source configured to apply electric current to the powder through the crucible and the electrode.
Type:
Application
Filed:
September 22, 2011
Publication date:
June 6, 2013
Applicants:
IHI Machinery and Furnace Co., Ltd., IHI Corporation