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Coating method for titanium alloy oil pipe coupling

A titanium alloy tubing and coating technology, which is applied in coatings, epoxy resin coatings, and devices for coating liquid on the surface, can solve problems such as not being able to meet the requirements for anti-sticking properties, and achieve improved anti-sticking properties, The effect of improving wear resistance

Active Publication Date: 2014-12-03
PANGANG GROUP CHENGDU STEEL & VANADIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for the titanium alloy oil pipe coupling, due to its material characteristics, the traditional surface treatment method can no longer meet its anti-sticking performance requirements.

Method used

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Examples

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Comparison scheme
Effect test

Embodiment

[0032] This embodiment discloses a method for coating a titanium alloy oil pipe coupling. The spraying process of the titanium alloy oil pipe coupling can be summarized as: coupling surface cleaning → molybdenum disulfide (MOS2) coating preparation → spraying → curing → detection and packaging. The following is a specific introduction to each process step of the titanium alloy oil pipe coupling coating method:

[0033] A. Oil pipe coupling cleaning

[0034] The cleaning methods in this step include pickling, alkali cleaning, sandblasting and the like. Clean or spray with surface treatment agent to achieve the best surface condition, which is beneficial to spray molybdenum disulfide and enhance the bonding force.

[0035] B, molybdenum disulfide (M O S 2 ) paint preparation

[0036] Prepare the molybdenum disulfide solution, the filling material in the prepared molybdenum disulfide solution is easy to deposit, and the whole solution is mixed most evenly by manual stirring o...

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PUM

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Abstract

The invention discloses a coating method for a titanium alloy oil pipe coupling. The method comprises the steps as follows: firstly, cleaning the oil pipe coupling; secondly, configuring molybdenum disulfide coating, preparing a molybdenum disulfide solution and enabling the viscosity of the molybdenum disulfide solution to range from 31 to 33 Pa.s; thirdly, conducting spraying, to be specific, spraying the molybdenum disulfide solution to the oil pipe coupling through utilizing an air atomizing spray gun with a container or adopting a continuous circulating solution pump pressurizing flow system; fourthly, solidifying, to be specific, putting the oil pipe coupling, subjected to the spraying, into a curing device for curing, and controlling the temperature in the curing device to be 195-205 DEG C; fifthly, testing, performing a gluing-pulling test on oil pipe coupling coating, judging the qualified degree of the oil pipe coupling coating through judging the thickness of the coating pulled off. According to the method, molybdenum disulfide is sprayed onto the titanium alloy oil pipe coupling to form a molybdenum disulfide coating on the surface of the coupling, so that the wearing resistance of a titanium alloy oil pipe joint is improved, and besides, the sticky buckling resistance property is improved accordingly.

Description

technical field [0001] The invention relates to the technical field of metal material surface treatment, in particular to a method for coating a titanium alloy oil pipe coupling. Background technique [0002] As the environment for oil and gas exploration and production becomes more and more complex, higher requirements are put forward for the corrosion resistance of the oil pipe. Structural integrity and sealing integrity of the column. Tubing coupling is a kind of oilfield drilling tool, mainly used for the connection of tubing. The oil pipe coupling mainly solves the problem that the existing coupling is prone to fatigue fracture due to stress concentration. The structure of the oil pipe coupling is: the end of the oil pipe is connected with the inner wall of the coupling by a tapered thread, and the end of the coupling body is connected with the oil pipe by a flat thread with the same thread and pitch. It has the characteristics of alleviating the stress concentration...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D3/02C09D163/00C09D7/12
Inventor 赵中清成海涛晏如边华川宋令玺李波黄英滕建明
Owner PANGANG GROUP CHENGDU STEEL & VANADIUM
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