A jet electrodeposition nozzle for strengthening the surface of an oil pipe

By using a composite anode jet electrodeposition nozzle composed of an inert metal anode rod and nickel particles, the problems of uneven electric field and uneven thickness in the preparation of the oil pipe strengthening layer are solved, and efficient and uniform preparation of the oil pipe strengthening layer is achieved, thereby improving wear resistance and corrosion resistance.

CN116445999BActive Publication Date: 2025-09-30CHINA UNIV OF PETROLEUM (EAST CHINA) +1
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Patent Information

Application Number
CN202310391016.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-12
Publication Date
2025-09-30
Estimated Expiration
2043-04-12

AI Technical Summary

Technical Problem

Existing methods for treating oil pipes for corrosion and wear resistance have problems such as complex process, high cost, poor bonding strength, short life, and high pollution. In addition, the jet electrodeposition technology can easily lead to uneven electric field and uneven thickness of the strengthening layer when preparing the oil pipe strengthening layer.

Method used

A composite anode composed of an inert metal anode rod, nickel particles, a conductive mesh and a conductive porous separator is used to form a jet electrodeposition nozzle to ensure the uniformity of the electric field. The nickel particles can be used to replenish nickel ions in the plating solution in time to refine the grain size.

Benefits of technology

The preparation efficiency and quality of the oil pipe strengthening layer are improved, the thickness uniformity of the strengthening layer is ensured, the wear resistance and corrosion resistance are enhanced, and the operation process is simplified.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention belongs to the field of mechanical manufacturing, and specifically relates to a jet electroplating nozzle for forming a surface strengthening layer on an oil pipe. The nozzle comprises an inert metal anode rod, a left centering connector, a slotted tube, nickel particles, a conductive screen, a conductive porous partition, and a right centering connector. The inert metal anode rod and the left centering connector are connected by an interference fit, the left centering connector and the slotted tube are threaded, the conductive screen and the conductive porous partition are staggered within the slotted tube, the nickel particles are evenly filled within the conductive screen, and the slotted tube and the right centering connector are threaded; the plating solution is sprayed onto the inner wall surface of the oil pipe through the slits on the slotted tube, and the metal ions in the plating solution are deposited on the inner wall of the oil pipe under the action of the electric field, thereby forming a strengthening layer. The present invention has the advantages of a simple structure, low preparation cost of the strengthening layer, high preparation efficiency, and strong wear resistance and corrosion resistance.
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