摘要:
A method and apparatus for manufacturing bent pipes of a composite material composed of resin and filling materials such as reinforcing materials and aggregates by employing a cylindrical molding tool which is deformable between straight-axis form and bent-axis form. Materials are supplied into the molding tool held in horizontally straight condition while the tool is rotated about a horizontal axis, and are molded into a pipe by centrifugal molding. Rotation of the tool is stopped when the pipe molded therein is in uncured state, then the tool is subjected to bending. The resulting bent pipe is removed after it is cured. Before the tool is bent, a bag made of a flexible sheet material is inserted into the pipe and inflated to straighten out the inner periphery of the pipe so as to protect the pipe from any possibility of deformation during bending operation. The molding tool is preferably made of such resilient material as rubber, is incased in a peripherally divisible frame or bellows-type flexible frame which, in turn, is suitably incased in a rotary frame. More preferably, the molding tool has a hollow space provided between its inner and outer walls; by filling liquid in the hollow space it is possible to achieve fine roundness in pipe molding irrespective of dimensional errors with the molding tool or frame.
摘要:
The present invention discloses a method of continuously processing a ribbonlike material. The method is characterized by comprising a preliminary polishing step in which surface defects of a material pulled out from an uncoiler are removed and the surface of the material is semi-finished by abrasion in combination with electrolytic polishing, a final polishing step in which the surface of the material is mirror-finished by abrasion in combination with electrolytic polishing, a washing and drying step in which the material is washed and dried with extraneous matter on the surface of the material washingly removed, a surface inspection step in which the thus finished surface of the material is inspected as to surface roughness and defects, a surface protection step in which a protective film is applied to the finished surface of the material, and a press step in which the material is cut into a predetermined size.According to the present invention, processes of mirror-finishing the surface of a ribbonlike material pulled out from an uncoiler and cutting such material into a predetermined size are continuously performed in an efficient and automatic manner.
摘要:
The present application discloses an equipment for continuously processing a band-shape material comprising transverse sliding shafts disposed on a base table, a basal board which freely slides transversely along said transverse sliding shafts, transverse-feeding means by which said basal board is quickly and/or slowly moved transversely, vertical sliding shafts disposed on said basal board, a tool of abrasion in combination with elctrolytic polishing which freely slides vertically along said vertical sliding shafts, vertical-feeding means by which said tool is moved vertically against said basal board and a polishing head which is disposed on said tool and composed of electrodes for electrolysis and abrasive matters for abrasion and by which continuously sent band-shape material is polished. In the case a band-shape material being conveyed is continuously polished for many hours, worn-out abrasive matters may be exchanged without interrupting the conveyance of said band-shape material, improving the working efficiency thereby.
摘要:
An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA1 and PA2 is performed by controlling the gain of the first variable amplifier MVGA included in the AM LP according to ramp information. Thus, unwanted radiation's level is reduced during ramp-up of the RF transmitter signal of the RF power amplifiers.
摘要:
An image display apparatus of a present invention has a rear plate having a plurality of electron-emitting devices, a face plate having a light-emitting member, a high-voltage power source which applies a high voltage to the light-emitting member, a current detecting unit which detects an emission current from the electron-emitting devices, and a bypass capacitor. One end of the bypass capacitor is connected between the high-voltage power source and the current detecting unit, and the other end of the bypass capacitor is connected to a potential regulating electrode, and an electrostatic capacitance Cp of the bypass capacitor satisfies a following formula: Cp>∈A/d where ∈: permittivity of vacuum, A: an area of the light-emitting member, and d: a distance between the rear plate and the face plate.
摘要:
Disclosed is a pneumatic run-flat radial tire of side reinforcing type, which has significantly improved run-flat durability without adversely affecting actual vehicle properties such as ride comfort.The pneumatic run-flat radial tire includes a carcass layer 5, a main belt 8, a tread portion 9, a side wall portion 12, and a reinforcing rubber layer 13 having a substantially crescent cross section. A cord having a difference in thermal shrinkage stress between at 30° C. and at 80° C. of 3.0×10−2 cN/dtex or more is used as cords of at least one carcass ply of the carcass layer 5. The slope a of decreasing rate (%) of the dynamic storage modulus of elasticity E′ of the reinforcing rubber 13 from 30° C. to 50° C. satisfies the following condition: α≦−3.0×10−2[%]/[deg]; and the slope β of decreasing rate (%) of the dynamic storage modulus of elasticity E′ from 50° C. to 80° C. satisfies the following condition: β≧−8.0×10−2[%]/[deg].
摘要:
This invention provides a pneumatic tire having a highly improved steering stability, wherein a reinforcing layer formed by spirally winding a strip-shaped triaxial fabric or triaxial fabric-rubber composite having a width W satisfying a relation of the following formula (I): W≧2/3×31/2×(2b/a+d) (I) [wherein d=4×(D/(πρ))1/2×10−2, D is a thickness (total dtex) of cord constituting the triaxial fabric, ρ is a density (g/cm3) of the cord constituting the triaxial fabric, and a is weaving density (cords/b mm) in one axis constituting the three axes] in a circumferential direction of the tire is disposed in one or more of a bead portion 1, a sidewall portion 2 and a belt portion 5.
摘要:
An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA1 and PA2 is performed by controlling the gain of the first variable amplifier MVGA included in the AM LP according to ramp information. Thus, unwanted radiation's level is reduced during ramp-up of the RF transmitter signal of the RF power amplifiers.
摘要:
An axial flow compressor is provided with a rotor blade row (10) which is formed such that an outlet cross sectional area is larger than an inlet cross sectional area so as to reduce a speed in an axial direction and reduce a pressure difference between a positive pressure surface and a negative pressure surface. Further, a stator blade row (11) is provided in a downstream side of the rotor blade row (10). An output cross sectional area of the stator blade row (11) is structured such as to be smaller than an inlet cross sectional area of the rotor blade row (10).
摘要:
A magnetic memory includes a magnetic substance composed of a disc-shaped first magnetic layer and a ring-shaped second magnetic layer which is formed on the first magnetic layer.