摘要:
A process and an apparatus for producing rapidly solidified metallic tapes by a double-roll system are disclosed, wherein molten metal is poured into a kissing region defined between a fixed cooling roll and a movable cooling roll through a nozzle located thereabove and rapidly solidified at the kissing region to form a metallic tape. In this case, pushing forces added to the movable cooling roll by hydraulic cylinders at driving and operational sides are controlled by adding to or subtracting from a standard pushing force an adjusting quantity of the pushing force as a function of a difference between a roll gap at the driving side and a roll gap at the operational side.
摘要:
Fe-B molten metal for producing amorphous alloys are produced in a low cost by using a vertical furnace wherein beds packed with a carbonaceous solid reducing agent are formed and two or three stages of tuyeres are provided in the lower portion of said furnace, feeding a preliminarily reduced powdery iron ore into the furnace through the upper stage of tuyeres together with hot air and feeding boron oxide or boric acid into the furnace through the lower stage of tuyeres together with hot air and, if necessary blowing hot air into the furnace through the lowest stage of tuyeres. In stead of the above described vertical furnace, a usual blast furnace provided with one or two stages of tuyeres at the lower portion of said furnace is used. In this case, sintered iron ore, pellet-formed iron ore or lump iron ore is fed from the top of the furnace and powdery boron oxide or boric acid is fed through the tuyeres.
摘要:
Hot-rolled low-carbon steel strip with an excellent press-workability capable of forming a smooth pressed surface consisting essentially of up to 0.12 wt. % carbon, up to 0.01 wt. % nitrogen, up to 0.0094 wt. % boron, and other specific optional ingredients, the B(%)/N(%) ratio being 0.3 to 0.94. The micrograin size number, JIS, of ferrite in the steel strip as hot-rolled is 7 to 9. The steel strip is made by hot-rolling while controlling the temperatures at the entry and delivery ends of a hot-strip finishing mill.
摘要:
Steel sheets having an excellent enamelability are produced by adjusting the carbon, silicon, manganese, aluminum, oxygen and boron contents in a molten steel to be not more than 0.020% of carbon, not more than 0.03% of silicon, not more than 0.50% of manganese, not more than 0.010% of aluminum, nor more than 0.050% of oxygen, boron within a range of 0.003-0.020% being in such an amount B(%).times.0(%) of more than 1.times.10.sup..sup.-5 and the remainder being inevitable impurities and iron, and hot rolling the resulting steel, cold rolling the steel and subjecting to a recrystallization annealing in a conventional manner.
摘要:
This seat belt device of a vehicle includes a webbing, a belt reel, a motor, a clutch, detection unit, brake control unit and motor control unit. The motor control unit includes a waiting current control unit configured to conduct a current that can maintain the clutch to be in the connection state in the motor when the brake control unit outputs the operation signal and variable current control unit configured to proceed from current control performed by the waiting current control unit when a change in the movement state of the vehicle is detected by the detection unit during the current control performed by the waiting current control unit and adjusts the amount of conduction in the motor based on the movement state of the vehicle that is detected by the detection unit.
摘要:
A seatbelt device for a vehicle including: a belt reel having webbing wound thereon; a position detection device that detects a winding position of the belt reel; a motor that drives the belt reel to rotate to thereby perform winding of the webbing; and a control section that performs control of electric current conduction to the motor, wherein: the control section performs electric current conduction to the motor at a predetermined amount at the time of a rear vehicular collision or when a rear vehicular collision is predicted; and the electric current conduction amount is controlled, so that during electric current conduction at the predetermined electric current conduction amount, when a winding position detected by the position detection device reaches a predetermined position, variation in the winding position is suppressed.
摘要:
Granular substances with pollutants adhered, such as contaminated soils and incinerated ashes, are finely granulated to separate the pollutants from the granular substances efficiently and to enable the granular substances, from which pollutants have been separated, to be recycled. After fine granulation of the granular substances by a coarse disintegrating treatment through a first fine granulation machine, the granular substances, which have been finely granulated by the first fine granulation machine, are subjected to, by a second fine granulation machine, mutual polishing among the granular substances by mutual rubbing forces of the substances themselves and thus the pollutants, such as heavy metals and dioxin class substances adhering strongly to the surfaces of the granular substances, are separated, and also the granular substances not containing the pollutants are classified from the granular substances which have already been finely granulated by a vibrational screen and a classification device.
摘要:
A differential pressure sealing apparatus and method for processing a continuously moving elongated sheet through successively different stages of vacuum. A vacuum chamber is provided with an inlet and a guide roller for the incoming sheet with the sheet urged against the guide roller over a wrap contact angle of 15 to 120 degrees. To resist the entrance of air into the chamber, a sealing structure encompasses at least portions of the entrance, the guide roller and the sheet.
摘要:
Pressure is exerted on the interior of casting rolls with a negative crown so that the rolls may maintain a true cylindrical surface without any crown when the continuous casting operation is initiated. When the cylindrical surface of the rolls is heated by molten metal as the continuous casting operation continues, the interior pressure of the rolls is decreased, whereby the rolls may maintain a true cylindrical surface without any crown.
摘要:
The control property of an onboard device is changeable by using an external control unit, and the data from the external control unit is authenticated. An onboard gateway unit is provided with a verification code generator for generating a security key, and an external control unit is provided with an application control unit for generating a security key. When the external control unit is connected, a main control logic unit of the gateway unit compares the two keys, and when the keys are verified, the control by the external control unit using an application program is enabled. The onboard device control unit can be easily connected to the external control unit. As the control of the device control unit by an external control signal is enabled only when verified, an unauthorized access can be prohibited, and the onboard deice can be controlled only by an authorized control signal.