摘要:
To provide a lubricating oil composition including a base oil which is composed of a mineral oil and/or a synthetic oil and which has a viscosity index of 95 or higher, and (A) an alkenylsuccinimide in an amount of 0.1 to 2.0 mass %, (B) an acidic phosphite diester having a C6 to C10 hydrocarbon group in an amount of 0.1 to 2.0 mass %, and (C) at least one species selected from among a perbasic alkaline earth metal sulfonate, a perbasic alkaline earth metal phenate, and a perbasic alkaline earth metal salycilate, in an amount of 0.001 to 0.3 mass %, with respect to the total amount of the composition. When employed in an automobile shock absorber, the composition enhances the frictional force at an interface between an oil seal and a piston rod of an automobile shock absorber, reduces the friction coefficient at an interface between a piston rod and a guide bush, suppresses foaming to thereby enhance driving stability during travel of the automobile, and improves riding comfort even when the automobile travels while receiving a lateral load exerted by small steps present on the road surface.
摘要:
A particular gear oil composition is provided that contains (A) a base oil, (B) an ethylene-α-olefin copolymer, (C) a sulfur-containing compound, (D) an organomolybdenum compound and (E) a phosphorus-containing compound, which is excellent in extreme pressure properties, shear stability and wear resistance, and is excellent in fuel saving properties.
摘要:
Provided are a liquid jet head, a carriage unit, a pressure control method, and a liquid jet recording apparatus, which are capable of increasing or decreasing pressure of liquid to an optimum value by precisely measuring the pressure of the liquid when the liquid is jetted from a nozzle. The liquid jet head includes a jetting portion (17) having a plurality of nozzles for jetting liquid (5a), a liquid storing unit (15) disposed in a conduit (6), the conduit (6) being for supplying the liquid (5a) in a liquid container (5) via a roller tube pump (7) to the jetting portion (17), the liquid storing unit (15) being for damping pressure fluctuations in the conduit (6), and a pressure sensor (22) serving as pressure measuring means disposed in the conduit (6) connecting the liquid storing unit (15) and the jetting portion (17), for measuring the pressure in the conduit (6a). Drive control of the roller tube pump (7) is exercised based on a measured value by the pressure sensor (22) so that the pressure of the liquid (5a) supplied from the conduit (6) to the jetting portion (17) is in a predetermined range.
摘要:
To enhance a space factor and ability of collecting excess liquid, there is provided a liquid injection head provided with a plurality of nozzles includes a nozzle guard that is formed so as to cover the nozzles, the nozzle guard including: a top portion having a slit opposed to the nozzles while being placed apart from a surface of the nozzles; a sealing portion that seals an area between a peripheral edge of the top portion and the nozzles; and a suction flow path in which a suction port is opened to a lower portion of the nozzles, and is communicated to an inside space of the nozzle guard, in which the inside space of the nozzle guard is rendered a negative pressure chamber by a suction portion connected to the suction flow path, and a first liquid overflowing the nozzles to the negative pressure chamber is sucked.
摘要:
[Purpose] To provide a light regulating film and a laminated light regulating film with relatively large crazes or cracks, capable of controlling optical properties such as transmissivity and scattering to a high degree, as well as a method for producing a light regulating film and a method for producing a laminated light regulating film.[Constitution] Linear notch patterns at fixed intervals are formed by contacting blades 6a on a drum 6 with a film F and mechanically transferring the shape of the blades 6a to the film F. The notch pattern is formed to be approximately parallel to the axial direction of the drum 6. When a flexural stress is applied in the direction of the film F transport by passing the film over the bending roll 8 while applying a predetermined tension thereto, crazes or cracks are formed inside the notch patterns, with the notches in the notch patterns serving as starting points thereof. Since crazes or cracks are formed using the notch patterns as starting points, relatively large crazes or cracks can be obtained, and optical characteristics can be controlled at a high level.
摘要:
Disclosed is a plate-like light guide element (24) provided with a light incident surface, a light exit surface (242), and an underside surface (243) disposed on the opposite side of the light exit surface (242). A foamed surface layer (244) is formed on at least a part of at least either the light exit surface (242) or the underside surface (243). The foamed surface layer (244) contains air bubbles and has a recessed sectional surface including the normal direction of the light exit surface (242) or the underside surface (243). The light guide element (24) is produced by performing infrared laser etching for at least a part of at least one of the main surfaces of a plate-like light guide element material composed of an acryl resin plate produced by a continuous plate production method, to form the foamed surface layer (244).
摘要:
Provided is a liquid jet recording apparatus which maintains a function of adjusting pressure of liquid jetted from a jetting portion toward a recording medium and which still has a simple apparatus structure. In the liquid jet recording apparatus, a pressure sensor is provided in a tube between a liquid storing portion and a roller tube pump, the pressure of liquid which flows through the tube is measured, a pressure value is sent to a control portion, the pressure value is compared with lower limit values and upper limit values stored in a definition file stored in the control portion, a corresponding drive signal is sent to a drive portion, a roller tube pump is driven in a normal direction or in a reverse direction by a drive portion, and in this way, the pressure of the liquid in a jetting portion is adjusted.
摘要:
Provides a light polarizing sheet which is easy to manufacture, offers the functionality of conventional multiple sheet structures, and satisfies both the luminance and viewing angle characteristics required for liquid crystal televisions and the like.The light polarizing sheet of the present invention comprises a first polarizing lens sheet including a sheet-shaped substrate and a first lens portion formed on one face of the substrate; and a second polarizing lens sheet including a sheet-shaped substrate and a second lens portion formed on one face of the substrate, having a flat portion on its tip; wherein the flat portion of the second lens portion on the second polarizing lens sheet and the other face of the substrate of the first polarizing lens sheet are adhered using a transparent material.
摘要:
Disclosed are a polypropylene-based resin and a polypropylene-based resin composition having well-balanced, high-level flowability, stiffness and impact resistance. The polypropylene-based resin has an MI of from 30 to 70 g/10 min and a 25.degree. C. xylene-soluble content, x, of from 5 to 15% by weight, in which the 25.degree. C. xylene-soluble component is such that (a) its ethylene unit content, z, is from 20 to 30% by weight, and (b) its intrinsic viscosity, [72], indecalin at 135.degree. C. is not smaller than 2.00 dl/g, and in which the 25.degree. C. xylene-insoluble component is such that (c) its ethylene unit content, y (% by weight), satisfies the following:100y/[y.times.(1-x/100)+x].ltoreq.1.13z-16.6,(d) in GPC, the content of its constituent component having a molecular weight of not smaller than 10.sup.6 is not smaller than 2% by weight, (e) its MI is from 40 to 130 g/10 min, and (f) its stereospecificity index is not smaller than 98.5%. The resin composition comprises (A) from 45 to 90% by weight of the polypropylene-based resin, (B) from 5 to 50% by weight of an ethylenic copolymer, and (C) from 0 to 25% by weight of talc.
摘要:
A plug for an optical fiber cable comprises a plug proper having a line-inserting portion for insertion of an optical fiber and a primary covering layer in a state communicating with the interior, an optical fiber-inserting portion for inserting only the optical fiber, a cylindrical portion formed on the outer wall of the line-inserting portion to caulk and fix the line, and a pressing portion having a concave-convex part formed to anchor the filamentary reinforcing fiber exposed from the end of the optical fiber cable onto the periphery of the pressing portion, and at least one ferrule for caulking the filamentary reinforcing fiber exposed from the end of the optical fiber cable to the concave-convex part of the pressing portion of the plug proper, and further, caulking the secondary covering layer. By adopting the above-mentioned structure, an optical fiber cable plug is obtained in which the primary covering material is caulked and secured, and therefore, problems such as a turning and protrusion of the line of the optical fiber do not arise.