Sony Corporation

Nippon Steel Sumitomo Metal Corporation

Nippon Steel Corporation

Aisin Corporation

Sony Group Corporation

Daisuke Kasai

Atsushi Ishii

Shigeru Ogawa

Motoshi Yamaguchi

Hiroki Kato

Osamu Izuta

Satoko Suzuki

Syouei Hirasawa

Yutaro Honda

Yuuto Okabe

Masashi Hattori

Akira Shiga

Tooru Akashi

Daisuke Nikkuni

Kazumichi Tsukuda

Takeo Itoh

Shingo Kuriyama

Takuya Watanabe

Shouji Toudou

Tetsuya Ohashi

Hiroyuki Nozaki

Takeshi Ryujin

Takeshi Naito

Toshiaki Matsumura

Provided is a method for executing a quenching method in which an object to be treated that is a quenching target is cooled with a quenching coolant that is a coolant for quenching, in which the object to be treated is moved inside the quenching coolant accumulated in a cooling tank, by a moving device for moving the object to be treated, and at least from when the object to be treated comes into contact with the quenching coolant until a surface of the object to be treated undergoes martensitic transformation, a state in which a relative speed of the object to be treated and the quenching coolant is slower than a moving speed of the object to be treated is maintained.

Quenching method

There is provided a rolling mill that includes a plurality of rolls, in which any one roll among respective rolls is adopted as a reference roll, including a load detection apparatus, detects a vertical roll load at a rolling support point position; a pressing apparatus pressing the roll chocks in the rolling direction; a driving apparatus moving the roll chocks in the rolling direction; and a position control unit which fixes a rolling direction position of roll chocks of the reference roll, and drives the driving apparatus to control positions in the rolling direction of the roll chocks of the rolls other than the reference roll.

Rolling mill, and method for setting rolling mill

Steel materials for continuously variable transmissions sheaves, and methods for manufacturing a continuously variable transmission sheaves, are provided. In the disclosed steel materials for continuously variable transmission sheaves, the steel materials satisfy the following expressions: 13.9&#x2264;Fn1&#x2264;15.5, and 1.20&#x2264;Fn2&#x2264;4.35 (in which Fn1=7&#xd7;Cr&#x2212;6&#xd7;Si+4&#xd7;Mn; and Fn2=Al&#xd7;N&#xd7;10).

Steel material for CVT sheave, CVT sheave, and method for manufacturing CVT sheave

An image processing device includes a control unit configured to control generation of a parameter related to adjustment of color corresponding to mutually different exposure times on the basis of a plurality of images photographed at the exposure times.

Image processing device and image processing method for adjusting color of an image

There is provided a control device including a control unit configured to perform exposure control of a first pixel group and exposure control of a second pixel group independently of each other, the first pixel group and the second pixel group being disposed in a single imaging surface. The control unit controls gain or an exposure time of the first pixel group and gain or an exposure time of the second pixel group independently of each other.

Control device, control method, and exposure control system

An imaging control device including: a control unit configured to perform control such that an exposure timing is synchronized with a timing of a peak of a detected flickering component on a basis of a period of the flickering component and the timing of the peak of the flickering component.

Imaging control device, imaging control method, and program

There is provided a control device that controls exposure of a first pixel group and a second pixel group disposed in a single imaging surface. The control device performs exposure control of the second pixel group independently of exposure control of the first pixel group in accordance with a designated focus position.

Control device, control method, and control system with independent exposure controls

[Object] To provide a rolling apparatus capable of accurately detecting a rolling direction force applied to a work roll chock. [Solution] A rolling apparatus for flat-rolled metal materials includes a pair of upper and lower work rollsand, and a pair of upper and lower backup rollsand. The rolling apparatus includes a pair of work roll chocksandconfigured to hold the respective work rolls, housingsconfigured to hold the work roll chocks, and load detection devicestoprovided in the work roll chocks, the load detection devices each detecting a load acting on one of the housings from one of the work roll chocks on an entry side in a rolling direction or on an exit side in the rolling direction. The load detection devices are each disposed so as to face one of the housings using a point of effort of a rolling direction force of one of the work rolls as a reference, such that a rotation moment generated on each of the work roll chocks caused by the rolling direction force is equal to a counter rotation moment generated by counterforce against the rotation moment.

Rolling apparatus for flat-rolled metal materials

[Object] To provide a rolling apparatus capable of accurately detecting a rolling direction force applied to a work roll chock. [Solution] A rolling apparatus for flat-rolled metal materials including a pair of upper and lower work rollsandincludes a pair of work roll chocksandconfigured to hold the respective work rollsand, housingsconfigured to hold the work roll chocks, and rolling direction force measurement devices, andconfigured to measure rolling direction forces. The rolling direction force measurement devices include a plurality of load detection devices on an entry side or an exit side of the work roll chocks in a rolling direction, and the plurality of load detection devices are provided to one of the housings, and the plurality of load detection devices are disposed in a manner that, during rolling of the flat-rolled metal materials, at least two of the load detection devices are arranged adjacent to each other in a draft direction facing a side surface of a corresponding one of the work roll chocks. In this case, the at least two load detection devices are disposed in a manner that a line extending in the rolling direction and including a roll axis, which is a point of effort of a rolling direction force, is interposed between the at least two load detection devices in the draft direction.

An image processing apparatus, including circuitry configured to cause an aperture diaphragm to move from a first diaphragm position to a second diaphragm position within a first exposure period. The circuitry is further configured to cause the aperture diaphragm to then move from the second diaphragm position to the first diaphragm position within the first exposure period or a second exposure period. The first and second exposure periods are used to capture different images.

Exposure controller, exposure control method, and image pickup apparatus

An imaging apparatus includes: an imaging device configured to convert light into an electric signal and to output the electric signal; an exposure control section configured to variably control an exposure period of the imaging device with use of an electronic shutter; and a flicker detection section configured to detect a flicker based on variation in an output signal from the imaging device when speed of the electronic shutter is varied from relatively-high speed to relatively-low speed.

Imaging apparatus, method of detecting flicker, and information processing unit

A method for manufacturing a steel sheet of the invention includes a hot-rolling process in which a steel material is hot-rolled using a finishing mill so as to obtain a hot-rolled steel sheet; and a cooling process in which the hot-rolled steel sheet is cooled. The hot-rolling process includes a target steepness-setting process in which a target steepness of the edge wave shape is set based on first correlation data indicating a correlation between a steepness of the edge wave shape of the hot-rolled steel sheet and a temperature standard deviation Y; and a shape-controlling process in which operation parameters of the finishing mill are controlled so as to match the steepness of the edge wave shape with the target steepness.

Method for manufacturing steel sheet

The present invention discovers that a rolling direction force occurs even with conventional adjustment by the kiss roll state, pinpoints that the rolling direction force does not affect the roll thrust force, and thereby enables more precise initial roll gap position adjustment of a rolling mill (rolling zero adjustment). That is, this is based on the fact that high precision rolling zero adjustment becomes possible without being affected by any thrust force acting between rolls if performing differential asymmetrical roll gap zero point adjustment of the work side and the drive side so that the difference of the rolling direction forces acting on the roll chocks of the work side and the drive side of the work roll at the work side and the drive side (in practice, within &#xb1;5% of the sum of the rolling direction forces at the work side and the drive side).

Rolling mill and method of zero adjustment of rolling mill

The object is to strictly eliminate the difference in offset of work rolls at the upper and lower and left and right of the rolling mill occurring in the kiss roll state before rolling or during rolling and eliminate the problem of warping of the flat products or meander or camber due to the thrust force acting between the work rolls and backup rolls. For this, there are provided a rolling mill for flat products having a pair of upper and lower work rolls driven by electric motors, a pair of upper and lower backup rolls, and devices for applying substantially horizontal direction external forces to barrels or shafts of the work rolls at positions of at least one location each at the work side and drive side, for the respective upper and lower work rolls, from the entrance side or exit side of the rolling mill, the external forces being supported through work roll chocks by project blocks of the rolling mill housing or work roll chock support members connected to backup roll chocks, and the value of the rolling direction offset of the work roll axial center position and backup roll axial center position divided by the sum of the work roll radius and backup roll radius being 0.0025 or less for both the upper and lower rolls, and a rolling method for flat products using the same.

Growing community of inventors

Tokyo, Japan

Daisuke Kasai