摘要:
Method for producing an elongated sintered article, characterized by the steps including filling powder material in a pipe, carrying out plastic deformation of the pipe filled with the powder material, and heating the pipe filled with the powder material to burn and/or sinter the powder material.The method of the present invention is advantageously applicable to production of wire or rod of ceramics, particularly so called new ceramics or fine ceramics, sintered alloys or their combination, which are difficult to shape or mold by conventional process such as wire-drawing, rolling or extrusion of powder material which is difficult to mold and machine after the powder material is sintered.
摘要:
The present invention relates to a high-strength coil spring useful for an engine and other high-strength springs requiring a high fatigue-resistance and a method of producing the same.In general, a higher tensile strength is desired for spring materials but it has been known that if a tensile strength exceeds a certain limit, a toughness and a fatigue resistance are contrarily reduced.In addition, a coil spring has been used after forming and then being subjected to a quenching treatment followed by being subjected to a shot peening treatment to add a compressive residual stress to a surface thereof but an effective shot peening treatment gives a surface roughness Rmax of 6 to 20 .mu.m, so that not only it has been impossible to remove surface defects having a surface roughness of 6 to 20 .mu.m or less but also impressions due to the shot peening have covered the surface defects to be turned into injured portions and fatigue nuclei in many cases.In view of the above description, the present invention has found a high-strength coil spring with high fatigue resistance using a clean steel wire, such as chromium-vanadium steel wire and chromium-silicon steel wire, by forming it in the shape of a spring, quenching and tempering at lower temperatures to heighten the tensile strength, and being subjected to a shot peening treatment followed by being subjected to an electrolytic polishing treatment, which does not exert a bad influence on fatigue resistance, to remove surface defects and a method of producing the same.
摘要:
Improvement in a method for producing a sintered elongated article by the steps comprising filling a metal pipe with a material powder, carrying out plastic deformation of the metal pipe and then subjecting the material powder in deformed metal pipe to sintering. In the invention, a netting of metallic wire (1) whose melting point is higher than a melting point of the material powder (3) is arranged around the metal pipe (2) before the sintering.
摘要:
In a hydraulic brake pressure control system of the load responsive type for wheeled vehicles, a load sensing member in the form of a leaf spring or a torque bar is engaged with a spring loaded valve piston of a hydraulic brake pressure control valve to exert a biasing force against the valve piston depending upon the wheel load. The load sensing member is formed at its intermediate portion with a plurality of curved portions bent back in a plane perpendicular to the bending action plane of the sensing member. Each intermediate portion defined by the curved portions acts as a torsional element.
摘要:
N-(Unsubstituted or substituted pyridyl)aminomethylene-diphosphonic acids represented by the formula: ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 is independently hydrogen or lower alkyl, and each of X and Y is independently hydrogen, halogen, nitro, acetamino, carboxyl, lower alkyl, methoxycarbonyl, hydroxyl or methoxy,and salts thereof, have effective herbicidal effects on postemergence of plants and selective inactivity against cotton plants.
摘要:
An illumination device for a vehicle, includes: a detection unit that detects a person; an illumination unit that illuminates light in a direction toward a road surface, an illumination region of the light being alterable; and a control unit that, in a case in which a person is detected by the detection unit and there is a possibility of collision between the detected person and the vehicle, controls the illumination unit so as to illuminate light at a region in a range of view of the detected person that is separated from the person by a pre-specified distance, and so as to move the light in a direction of movement of the detected person while maintaining the separation at the pre-specified distance.
摘要:
Flexible circuits 2, 3 are formed on a flexible insulating sheet 1. A thermal sensor 4 is connected between the circuits 2, 3. The thermal sensor 4 and connecting parts 5 are integrally covered with an elastic insulating resin 6. While the insulating sheet 1 is bent together with the insulating resin 6, the thermal sensor 4 is pushed onto an object to be sensed 8 via the insulating sheet 1. A plurality of thermal sensors 4 are connected in series in a longitudinal direction of the insulating sheet 1. The insulating resin 6 covers the thermal sensors 4 and the connecting parts 5.
摘要:
A digital watermark embedding apparatus for embedding embedding information into an input signal having dimensions equal to or greater than N(N is an integer equal to or greater than 2). The apparatus generates an embedding sequence based on the embedding information, generates an N−1-dimensional pattern based on the embedding sequence, generates an N-dimensional embedding pattern by modulating a periodic signal according to a value on the N−1-dimensional pattern, and superimposes the embedding pattern in the input signal and outputs it. A digital watermark detection apparatus measures a component of a predetermined periodic signal in a direction of a dimension of the input signal to obtain an N−1-dimensional pattern, obtains a detection sequence from values of the N−1 dimensional pattern, and detects the embedded digital watermark based on a size of correlation value between the detection sequence and an embedding sequence.
摘要:
A digital watermark embedding apparatus for embedding information, as digital watermark, into an input signal having dimensions equal to or greater than N (N is an integer equal to or greater than 2) and a digital watermark detection apparatus for detecting the digital watermark are disclosed. The digital watermark embedding apparatus generates an embedding sequence based on embedding information, generates a N−1-dimensional pattern based on the embedding sequence, generates N-dimensional embedding pattern by modulating a periodic signal according to a value on the N−1-dimensional pattern, and superimposing the embedding pattern in the input signal and outputs it. The digital watermark detection apparatus measures a component of a predetermined periodic signal in a direction of a dimension of the input signal to obtain a N−1-dimensional pattern, obtains a detection sequence from values of the N−1 dimensional pattern, and detects embedded digital watermark based on a size of correlation value between the detection sequence and an embedding sequence.