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Nanometer strengthening method of surface of long thin piston rod of hydraulic oil cylinder

A technology of hydraulic oil cylinder and piston rod, which is applied in the field of nano-strengthening the surface of the slender piston rod of hydraulic oil cylinder, can solve problems such as technical limitations, and achieve the effects of improving work efficiency, high efficiency, and easy guarantee of travel tolerance.

Inactive Publication Date: 2013-06-12
XUZHOU YONGJIA HYDRAULIC EQUIP
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Problems solved by technology

However, the application of cold rolling or shot blasting methods is also technically limited

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  • Nanometer strengthening method of surface of long thin piston rod of hydraulic oil cylinder

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 As shown, the ultrasonic nano-strengthening system is mainly composed of an ultrasonic module and a machine tool module connected in sequence. Among them, the ultrasonic module is composed of a controller 1, an ultrasonic generator 2, a transducer 3, a horn 4, and a ball 5. The machine tool module is composed of fuel injection pipe 6 , slender piston rod 7 , fixture 8 , horizontal lathe 9 and tool rest 10 . The parameters of the ultrasonic wave in the process of nanostrengthening are adjusted by the controller 1 and monitored in real time; the ultrasonic generator 2 is used to generate an alternating voltage at a frequency of 30KHz; the transducer 3 converts the 30KHz alternating voltage into ultrasonic vibration; The vibration amplitude is amplified; the ball 5 is driven to vibrate at high frequency, and the ball 5 interacts w...

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Abstract

The invention discloses a nanometer strengthening method of the surface of a long thin piston rod of a hydraulic oil cylinder, which belongs to the technical field of surface engineering and includes conducting half finish turning on the long thin piston rod by utilizing an ultrasound nanometer strengthening system, conducting finish turning after the half finish turning, retaining ultrasonic processing quantity according to difference of machine parts, opening an oil spraying pipe, setting spindle rotating speed and knife frame feeding speed of a horizontal type lathe according to the diameter of the long thin piston rod and opening an ultrasound nanometer strengthening device to conduct ultrasound nanometer strengthening processing. The strengthening method utilizes cold plasticity of the surface of the piston rod in the normal temperature state and utilizes composite energy of mechanical energy generated by high frequency vibration of rolling balls and heat energy with the temperature slightly higher than room temperature to conduct grinding-agent-free grinding, strengthening and tiny transformation processing on the surface of the piston rod to enable the surface of the pistonrod to achieve better surface roughness and refine grains of surface metal. Simultaneously, pressure stress is generated on the surface, surface micro-hardness is improved, abrasion resistance is strengthened, and fatigue service life is prolonged.

Description

technical field [0001] The invention relates to a nanometer strengthening method for the surface of a slender piston rod of a hydraulic oil cylinder, which belongs to the technical field of surface engineering. It can be applied in the field of machinery manufacturing. Background technique [0002] With the advancement of science and technology, the requirements for the types of hydraulic cylinders in various fields are becoming more and more extensive. Therefore, the strengthening and modification of the surface of the friction pair in the hydraulic cylinder system has become a subject of increasing concern. Surface strengthening is a process to improve the surface properties of mechanical parts and components, improve fatigue strength and wear resistance, and sometimes improve corrosion resistance. [0003] In the surface strengthening technology, as a mechanical strengthening method, two methods, cold rolling and shot peening, are currently mainly used. However, the ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/09
Inventor 王世永闫梅
Owner XUZHOU YONGJIA HYDRAULIC EQUIP
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