摘要:
The invention aims to provide a film for a pressure roller, without requiring an adhesive layer and capable of maintaining or improving conventionally obtained characteristics such as a tensile strength, a tear strength and an excellent releasing property with a recording material. The invention provides a film for a pressure roller, including a polyimide layer in which fluorinated resin powder is dispersed. The fluorinated resin powder is dispersed in an amount of from 10 to 20 vol % in the polyimide layer, and has an average particle size of from 1 to 20 μm.
摘要:
An automatic pouring method without using a servomotor having a vertical output shaft, establishing the pouring at a low level, eliminating the unstable pouring, sand inclusion, and gaseous defects. An automatic pouring method using a ladle to be tilted for pouring molten metal into a pouring cup of a flaskless or tight-flask mold in at least one pouring device movable along an X-axis parallel to a molding line in which the mold is transferred, wherein the ladle is moved along a Y-axis perpendicular to the molding line in a horizontal plane and is tilted about a first axis of rotation and further about a second axis of rotation.
摘要:
Reliability is evaluated in constructing a component based-on application and an application for realizing reliability required can be constructed efficiently. A run-time history such as an occurrence frequency of errors, a recovery time required at error occurrence, and a processing capacity at preventive maintenance is added per software component to a run-time history list having been recoded per execution environment such as an application ID, combined component IDs, and executed hardware ID. From these pieces of information, an interval of performing preventive maintenance recommended per software component during system construction is calculated. By comparing reliability per software component and reliability required for the system, advisability is determined and conformance is evaluated. An execution schedule for preventive maintenance and a processing capability are calculated about the entire component-based application created by combining the software components. By calculating the reliability and the processing capability in the entire system to be compared to those required for the entire system, advisability is determined and conformance is evaluated.
摘要:
A process for producing plated steel sheet comprises the steps of heating a steel slab containing not more than 0.5 wt % C to the temperature range not lower than the transformation point Ac.sub.3, and jetting high-pressure water to the surface of a steel sheet at a discharge pressure of 300 kgf/cm.sup.2 or more at least once during hot rough rolling and hot finish rolling, thereby removing a layer of iron oxide on the surface of the steel sheet. The steel sheet is thereafter coiled while keeping a finishing delivery temperature of the steel sheet in the range of 500-800.degree. C., reducing the layer of iron oxide on the surface of the steel sheet at 50-98 % in an annealing furnace with the temperature of the steel sheet held in the range of 750-900.degree. C., and plating the steel sheet. With the process of the invention, plated steel plates having superior workability and plating adhesion can be produced at low cost, even when cold rolling and pickling are omitted from the production steps.
摘要翻译:制造电镀钢板的方法包括以下步骤:将不大于0.5wt%C的钢坯加热至不低于相变点Ac3的温度范围,并将高压水喷射到钢板表面上 排出压力为300kgf / cm 2以上,在热粗轧和热精轧中至少一次,从而在钢板表面除去氧化铁层。 然后,钢板在将钢板的精轧输送温度保持在500-800℃的范围内进行盘绕,在退火炉中将钢板表面的氧化铁层以50-98%的比例还原, 钢板的温度保持在750-900℃的范围内,并且对钢板进行电镀。 通过本发明的方法,即使在制造步骤中省略冷轧和酸洗时,也可以低成本地制造具有优异的加工性和电镀附着力的电镀钢板。
摘要:
A quartz crystal element in which unwanted response is suppressed, comprising a thickness shear quartz blank such as an AT-cut type. An area where an amplitude of unwanted response may be strong can be eliminated from the quartz blank by forming the quartz blank into a substantially hexagon. Preferably, each pair of three pairs of opposite sides are mutually parallel and one of the pairs is parallel to the longest diagonal line of the quartz blank. For an AT-cut type of quartz crystal element, the direction of the longest diagonal line of the quartz blank is within the range of 28.degree..+-.15.degree. or 118.degree..+-.15.degree. from the Z' axis direction of the quartz blank, and the quartz blank is held at the ends of the longest diagonal line.
摘要:
A hot dip coating apparatus and method, enables stable and continuous production of a coated steel strip having a high degree of uniformity of the coating quality over the breadth of the steel strip and clean coated surfaces free of deposition of dross. The hot dip coating apparatus has a bottom slit through which a steel strip to be coated is introduced and pulled upward through the coating tank, and an electromagnetic sealing device which applies a magnetic field to the molten metal in the coating tank so as to hold the molten metal inside the tank. The coating tank is provided at its top with an overflow dam for allowing the molten metal to overflow out of the coating tank. The apparatus also has a molten metal supply system which produces a circulating flow of the molten metal through the coating tank. The molten metal supply system has molten metal buffers which communicate with a molten metal supply passage and from which the molten metal is discharged towards the steel strip.
摘要:
An apparatus for holding molten metal in a container having an opening at the bottom thereof comprising an electromagnet for generating a horizontal magnetic field in a lower part of the molten metal in the container and a conductive block for guiding part of eddy currents induced in the molten metal by the generation of the horizontal magnetic field, to flow outside the molten metal.