摘要:
This high-strength steel sheet includes: in terms of percent by mass, 0.03 to 0.10% of C; 0.01 to 1.5% of Si; 1.0 to 2.5% of Mn; 0.1% or less of P; 0.02% or less of S; 0.01 to 1.2% of Al; 0.06 to 0.15% of Ti; and 0.01% or less of N; and contains as the balance, iron and inevitable impurities, wherein a tensile strength is in a range of 590 MPa or more, and a ratio between the tensile strength and a yield strength is in a range of 0.80 or more, a microstructure includes bainite at an area ratio of 40% or more and the balance being either one or both of ferrite and martensite, a density of Ti(C,N) precipitates having sizes of 10 nm or smaller is in a range of 1010 precipitates/mm3 or more, and a ratio (Hvs/Hvc) of a hardness (Hvs) at a depth of 20 μm from a surface to a hardness (Hvc) at a center of a sheet thickness is in a range of 0.85 or more.
摘要:
This high-strength steel sheet includes: in terms of percent by mass, 0.03 to 0.10% of C; 0.01 to 1.5% of Si; 1.0 to 2.5% of Mn; 0.1% or less of P; 0.02% or less of S; 0.01 to 1.2% of Al; 0.06 to 0.15% of Ti; and 0.01% or less of N; and contains as the balance, iron and inevitable impurities, wherein a tensile strength is in a range of 590 MPa or more, and a ratio between the tensile strength and a yield strength is in a range of 0.80 or more, a microstructure includes bainite at an area ratio of 40% or more and the balance being either one or both of ferrite and martensite, a density of Ti(C,N) precipitates having sizes of 10 nm or smaller is in a range of 1010 precipitates/mm3 or more, and a ratio (Hvs/Hvc) of a hardness (Hvs) at a depth of 10 μm from a surface to a hardness (Hvc) at a center of a sheet thickness is in a range of 0.85 or more.
摘要:
A light sensor for detecting brightness of an outside of a vehicle includes: a light shielding element on a windshield; a light guiding element in a through hole of the light shielding element; and a light receiving element that receives light from the outside of the vehicle via the light guiding element and the windshield. The light guiding element includes an entrance surface facing the windshield and an output surface facing the light receiving element. The entrance surface receives the light from the outside. The light guiding element transmits and outputs the light from the output surface toward the light receiving element. The entrance surface has a top disposed inside of the through hole.
摘要:
A touch panel 47 is constructed by a display/sensor unit 51a which is slightly larger than a display screen of an LCD 46 and a sensor unit 51b which is projected to the outside from one side, for example, from one side on the right. A finger 52 of the user is touched to a selection item such as desired button, icon, or the like on the display/sensor unit 51a and vertically moved on the sensor unit 51b. A selection display 53 constructed by a plurality of buttons is displayed along the side of the right side of the display screen by the LCD 46. A button beside the finger 52 is highlighted and when the finger 52 is released, the highlighted button is selected. If there are no buttons adjacent to the finger 52, the button is not highlighted. Even if the finger 52 is released, the state is not changed. When finger 52 is moved to the display/sensor unit 51a, the selection display 53 disappears.
摘要:
An illuminance sensor for detecting brightness of outside a vehicle having a windshield includes first and second light receiving elements and a light emitting element for emitting light to the windshield. The first light receiving element outputs a first signal corresponding to outside light. The light emitted from the light emitting element is reflected at an outside surface of the windshield. The second light receiving element outputs a second signal corresponding to the reflected light. The outside light passes a first region of the windshield through which the light emitted from the light emitting element passes or a second region of the windshield through which the reflected light passes. The first signal is corrected based on the second signal to detect the brightness.
摘要:
The invention provides a metal working fluid composition which comprises a morpholine compound and an isothiazoline compound and a metal working method which makes use of the metal working fluid composition. The composition is excellent in antiseptic properties, and can widely be applied to metal working techniques such as cutting, grinding, form rolling, press working and plastic working techniques.
摘要:
The present invention provides a rolling bearing which comprises a retainer that can be used without any deformation at high temperatures and fairly assembled to bearing and thus can be used under severe working conditions such as high temperature, high rotary speed and high load over an extended period of time. A novel rolling bearing is provided comprising a retainer made of a resin composition having a flexural modulus of at least 3,500 MPa at 180° C. and a heat-resistant temperature of at least 150° C.
摘要:
The present invention provides a water-soluble metal-processing oil composition which is excellent in putrefaction resistant properties and sparingly has any bad influence upon global environment and human body and a method for processing metals which makes use of the metal-processing oil composition.The metal-processing oil composition of the invention comprises an amine carrying a linear or branched alkyl group having not less than 4 carbon atoms (component A) in an amount ranging from 0.5 to 20% and an amine carrying a cycloalkyl ring or a benzene ring (component B) in an amount ranging from 0.5 to 20% and the method for processing metals is characterized in that it uses the metal-processing oil composition.
摘要:
A steam turbine cycle of the present invention comprises a high pressure turbine 1, a reheating turbine 24, a boiler 4, feed heaters 6 for heating a feed water to the boiler 4 by a bleed steam from the turbines 1 and 24, a feed pump 12, and a condenser 10, the steam turbine cycle being a single-stage reheating cycle where a working fluid is water and using a Rankine cycle which is a regenerative cycle. A steam temperature at an outlet of the boiler is 590° C. or more. A temperature increase ratio between: a feed-water temperature increase in a first feed heater 7 corresponding to a bleed steam (high-pressure turbine exhaust bleed steam) 22 from an exhaust steam of the high pressure turbine 1; and an average of feed-water temperature increases in second feed heaters 8 where a pressure of the feed water is lower than that of the first feed heater 7; falls within 1.9-3.5.
摘要:
The present invention provides high strength thin-gauge steel sheet with excellent elongation and hole expandability having a tensile strength of 500 MPa or more and a method of production of high strength thin-gauge steel sheet with excellent elongation and hole expandability enabling production of this on an industrial scale, that is, high strength thin-gauge steel sheet comprised of, by mass %, C: 0.03 to 0.25%, Si: 0.4 to 2.0%, Mn: 0.8 to 3.1%, P≦0.02%, S≦0.02%, Al≦2.0%, N≦0.01%, and a balance of Fe and unavoidable impurities and having a microstructure comprised of ferrite with an area fraction of 10 to 85% and residual austenite with a volume fraction of 1 to 10%, an area fraction of 10% to 60% of tempered martensite, and a balance of bainite.