Anti-corrosion wear-proof hydraulic cylinder and manufacturing method thereof

A hydraulic cylinder, anti-corrosion and wear-resistant technology, applied in the field of hydraulic cylinders, can solve the problems of hydraulic cylinders without good wear resistance and anti-corrosion performance, reduce the service life of hydraulic cylinders, and reduce the working efficiency of hydraulic cylinders, so as to improve process performance and improve Combination, the effect that is conducive to a wide range of use

Inactive Publication Date: 2014-08-13
四川中久力合石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When using a hydraulic cylinder, it is inevitable that foreign matter will enter the hydraulic cylinder due to long-term use. However, when the hydraulic cylinder is working, the piston moves back and forth quickly in the cylinder, and the friction between the foreign matter and the inner wall of the cylinder will increase. The inner wall of the cylinder is damaged, which reduces the life of the cylinder and reduces the working efficiency of the hydraulic cylinder
[0007] In addition, hydraulic oil also has a certain service life. If the user has not replaced the hydraulic oil in it for a long time, the inner wall of the existing hydraulic cylinder is easily corroded, reducing the service life of the hydraulic cylinder.
[0008] In actual use, the existing hydraulic cylinders have an average service life of only 1-3 years because they do not have good wear resistance and anti-corrosion properties. The service life is too short, which makes the user's use cost too high and reduces work efficiency.

Method used

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  • Anti-corrosion wear-proof hydraulic cylinder and manufacturing method thereof
  • Anti-corrosion wear-proof hydraulic cylinder and manufacturing method thereof
  • Anti-corrosion wear-proof hydraulic cylinder and manufacturing method thereof

Examples

Experimental program
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Effect test

specific Embodiment 1

[0092] In terms of mass percentage, 10% of chromium, 3% of silicon, 40% of iron, and 12% of carbon are made into a mixed powder with a particle size of 150 mesh, and the mixed powder is covered on the inner surface of the hydraulic cylinder base 1 made of No. 45 steel on, use the CO 2 The laser is used for cladding, the wavelength of the laser is 1000nm, and the energy density is 60J / mm 2 ; The irradiation time was 4 minutes. After the irradiation is completed, the formed cermet layer 2 is fused with the inner surface of the 45# steel hydraulic cylinder substrate 1, and its thickness is about 1mm, and then it can be formed by post-stage heat treatment.

specific Embodiment 2

[0093] In terms of mass percentage, 10% of chromium, 7% of silicon, 30% of iron, and 8% of carbon are made into a mixed powder with a particle size of 200 meshes, and the mixed powder is covered on the inner surface of the hydraulic cylinder base 1 made of No. 45 steel on, use the CO 2Laser cladding, where the wavelength of the laser is 1060nm, and the energy density is 70J / mm 2 ; The irradiation time is 5 minutes. After the irradiation is completed, the formed cermet layer 2 is fused with the inner surface of the hydraulic cylinder base 1 of No. 45 steel, and its thickness is about 1.2mm, and then it can be formed by post-stage heat treatment.

specific Embodiment 3

[0094] In terms of mass percentage, 13% of chromium, 6% of silicon, 32% of iron, 13% of carbon, and 36% of nickel are made into a mixed powder with a particle size of 220 mesh, and the mixed powder is covered on the hydraulic cylinder base made of No. 45 steel 1 on the inner surface, using CO 2 Laser cladding, where the wavelength of the laser is 1040nm, and the energy density is 65J / mm 2 ; The irradiation time is 6 minutes. After the irradiation is completed, the formed cermet layer 2 is fused with the inner surface of the hydraulic cylinder base 1 of No. 45 steel, and its thickness is about 1.3mm, and then it can be formed by post-stage heat treatment.

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Abstract

The invention belongs to the field of hydraulic cylinders and particularly relates to an anti-corrosion wear-proof hydraulic cylinder and a manufacturing method of the anti-corrosion wear-proof hydraulic cylinder. The anti-corrosion wear-proof hydraulic cylinder comprises a hydraulic cylinder base body. The inner surface of the hydraulic cylinder base body is covered with a metal ceramic layer. The metal ceramic layer comprises, by mass, 10%-30% of chromium, 2%-12% of silicon, 30%-40% of iron, 3%-13% of carbon and 35%-45% of nickel. By the adoption of the anti-corrosion wear-proof hydraulic cylinder and the manufacturing method of the manufacturing method of the anti-corrosion wear-proof hydraulic cylinder, the manufactured hydraulic cylinder is good in wear resistance, and the machining property and the stability are good; compared with an existing hydraulic cylinder, the service life of the manufactured hydraulic cylinder is prolonged by over 1.5 times, the utilization ratio of the hydraulic cylinder is increased, and the use cost is reduced.

Description

technical field [0001] The invention belongs to the field of hydraulic oil cylinders, and in particular relates to an anti-corrosion and wear-resistant hydraulic oil cylinder and a manufacturing method thereof. Background technique [0002] The hydraulic cylinder includes 5 basic components: cylinder barrel and cylinder head, piston and piston rod, sealing device, buffer device, and exhaust device. [0003] Cylinder (TUBE) consists of four parts: cylinder body, flange, cylinder bottom, bushing; piston rod (ROD) consists of three parts: rod body, earrings, bushing. [0004] The inside of the cylinder is divided into two parts by the piston, which are the large cavity and the small cavity; the large cavity refers to the cavity of the cylinder after the piston rod is fully extended; the small cavity refers to the cavity of the cylinder and the rod after the piston rod is fully extended; Due to the relatively high viscosity of the hydraulic oil and the small compression ratio, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J10/04C23C24/10C22C29/00
Inventor 鲁伟员李信王强刘伟杨义乐
Owner 四川中久力合石油科技有限公司
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