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Processing technique for piston rod of steering cylinder

A processing technology and steering oil cylinder technology, applied in the field of hydraulic oil cylinders, can solve problems such as easy cracking and easy wear, and achieve the effect of long service life

Inactive Publication Date: 2014-12-17
ANQING TIANRUN ENG MACHINERY
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  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a processing technology for the piston rod of the steering oil cylinder, which solves the problems of single high-temperature quenching that is prone to cracks and single electroplating that is easy to wear

Method used

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  • Processing technique for piston rod of steering cylinder

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Embodiment Construction

[0020] In order to easily understand the technical means, creative features, goals and effects of the present invention, the present invention will be further described below in conjunction with specific illustrations.

[0021] Such as figure 1 Shown, a kind of processing technology of steering oil cylinder piston rod, the processing technology of described piston rod comprises the following steps:

[0022] (1) Blanking: choose 45# steel for blanking, and its hardness is about HRC20;

[0023] (2) Rough turning of the outer circle: rough machining of the blank, rough turning of the outer circle, flattening the end face of the blank;

[0024] (3) Milling and drilling: use the machining center to mill and drill the blank;

[0025] (4) Ultrasonic frequency quenching: Ultrasonic frequency quenching is carried out on the surface of the blank, which requires a quenching layer with a thickness of 1~1.5mm on the surface of the blank, and its hardness requirement is HRC45~55;

[002...

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Abstract

The invention discloses a processing technique for a piston rod of a steering cylinder and belongs to the field of a hydraulic cylinder. The processing technique comprises the steps: (1) preparing a material; (2) roughly turning an outer circle; (3) drilling a hole on a milling surface; (4) quenching in super-audio frequency; (5) grinding the outer circle; (6) electroplating; (7) polishing; (8) forming semi-finished products. A quenching layer and an electroplating layer are formed on the surface of the piston rod in double surface hardening modes of super-audio frequency quenching and electroplating; the hardness of the quenching layer is HRC45-55 and the thickness of the quenching layer is 1-1.5mm; the hardness of the electroplating layer is HRC65 and the thickness of the electroplating layer is 0.03-0.05mm; the surface of the piston rod is more wear-resisting and the service life is longer.

Description

technical field [0001] The invention relates to a processing technology for a steering oil cylinder piston rod, which belongs to the field of hydraulic oil cylinders. [0002] Background technique [0003] The processing of the piston rod of the steering cylinder includes the surface hardening process of the piston rod blank. In general, the hardening method of the piston rod in the general processing process is relatively simple, either by high-temperature quenching or electroplating. Only using high-temperature quenching will change the surface hardness while making the surface brittle and prone to cracks; only using electroplating, the electroplating layer is generally too thin and easy to wear. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a processing technology for the piston rod of the steering oil cylinder, which solves the problems of single high-temperature quenching that is prone to cracks and singl...

Claims

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Application Information

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IPC IPC(8): B23P15/10C21D1/09C25D3/04
CPCB23P15/00C21D1/09C25D3/04F15B15/20F16J7/00
Inventor 吴琪李乾龙
Owner ANQING TIANRUN ENG MACHINERY
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