摘要:
An apparatus for generating a noise sound, which is equipped in industrial electric cars with little or no driving sound and generates an appropriate amount of noise sound so that the nearby cars or pedestrians can notice their approch in a narrow pathway or stock room. The apparatus has a cornical air collector (1) installed in the car, a shutter (5) installed rotatably in the air collector (1) and controls the flow amount of air passing through the air collector (1), and a U-shaped tube (4) installed apart by a predetermined distance from a small diameter portion (9) of the air collector (1) and generates the noise sound by the air discharged from the air collector.
摘要:
This invention is concerned with the processing method of carburized product with an increased hardening depth, in which boron treated steel comprising by weight percent 0.18∼ 0.35 % C, 0.06∼0.3 % Si, 0.5∼1.5 % Mn,
摘要:
A rotation sensing device for detecting a fine displacement of a handle and control system for use in an electrical power steering device in vehicles and a motor driving device in industrial machines. The rotation sensing device has a fixing member with a support plate and a plurality of polarity plates fixed to one side of the support plate at a predetermined interval, and a dielectric member with a plurality of dielectric plates fixed to one side of a handle shaft of the handle at a predetermined interval and movingly inserted into the interval between each of the polarity plates. Therefore, the capacitance of the dielectric member can be variable based on a mechanical displacement of the handle.
摘要:
An apparatus and a method for controlling a moving speed of each bucket and a moving speed ratio between each bucket to be proportional to a degree of operation of each operation indicator (75) and an operation ratio between each operation indicator (75) regardless of changes in various working conditions or load pressures. The apparatus has means for receiving an operation command from an input portion and converting said operation command into an operation signal, means (85) for calculating a required discharge oil amount of a pump (35a,35b) which is proportional to said operation signal and a required moving speed of an actuator (105a,105b) which is proportional to the degree of operation and the operation ratio of said operation signal, means (45a,45b) for adjusting said required discharge oil amount and said required moving speed based on a maximum dischargeable oil amount of said pump (35a35b), means for subsracting a real discharge oil amount and a real moving speed from said adjusted discharge oil amount and said adjusted moving speed, means for controlling the discharge oil amound of said pump (35a,35b) according to the control signal from said substracting means, and means for controlling the moving speed of said actuator according to the control signal from said substracting means.
摘要:
The present invention is concerned about high toughness and high strength untempered steel having the mechanical properties equivalent to or better than those of tempered steel and processing method thereof, more particularly, the high toughness and high strength untempered steel having the tensile strength higher than 90kgf/mm² with the impact toughness higher than 5kgf-m/cm² in the KS 3 specimen, and processing method thereof.
摘要翻译:本发明涉及具有等同于或优于回火钢的机械性能的高韧性和高强度未回火钢及其加工方法,更具体地说,涉及抗拉强度高于90kgf / g的高韧性和高强度未回火钢, 在KS 3试样中冲击韧性高于5kgf-m / cm 2,其加工方法。