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Aluminum alloy composite material with solid self-lubrication and preparation method thereof

A solid self-lubricating and composite material technology, applied in the field of materials, can solve the problems of not meeting the requirements of drill pipe use, environmental pollution of electrolyzer waste liquid, short service life, etc., and achieve excellent self-lubrication, excellent wear resistance, and service life long life effect

Active Publication Date: 2018-09-28
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the lubricating layer is a polymer material with a short service life and cannot meet the requirements of the drill pipe.
The Chinese patent announcement number is: CN 106835233A, the announcement date is 2017.06.13, and the invention name is: the preparation method of wear-resistant and anti-corrosion aluminum alloy drill pipe and the prepared aluminum alloy drill pipe. The anti-corrosion aluminum alloy drill pipe has the disadvantage that the wear-resistant and anti-corrosion layer on the surface is only 40-60 μm, the service life is short, and the waste liquid of the electrolytic cell has a great pollution to the environment

Method used

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  • Aluminum alloy composite material with solid self-lubrication and preparation method thereof
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Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: A method for preparing an aluminum alloy drill pipe material with solid self-lubricating properties, the specific steps are as follows:

[0024] 1): Precursor preparation, first prepare Ti, Co, Cr, Fe, Ni, Cu metals according to the atomic ratio to prepare the raw materials, place them in the crucible melting furnace to be heated to melting, and then fill the melt into the metal in the spray deposition machine At the same time, the MoS2+C mixture with a particle size of 10μm is injected into the solid fluidized conveyor, and 0.85MPa high-pressure argon is passed into the metal liquid ladle and the solid fluidized conveyor to make the high-entropy alloy metal liquid and MoS2+C particles are atomized synchronously to form solid-liquid mixed droplets, and the droplets solidify rapidly under the action of the cooler at the lower end of the atomization chamber, and are deposited on the substrate to obtain precursor particles with a deposition distance of 900mm;

[0...

Embodiment 2

[0031] Embodiment 2: A method for preparing an aluminum alloy drill pipe material with solid self-lubricating properties, the specific steps are as follows:

[0032] 1): Precursor preparation, first prepare Ti, Co, Cr, Fe, Ni, Cu metals according to the atomic ratio to prepare the raw materials, place them in the crucible melting furnace to be heated to melting, and then fill the melt into the metal in the spray deposition machine At the same time, the MoS2+C mixture with a particle size of 10μm is injected into the solid fluidized conveyor, and 0.85MPa high-pressure argon is passed into the metal liquid ladle and the solid fluidized conveyor to make the high-entropy alloy metal liquid and MoS2+C particles are atomized synchronously to form solid-liquid mixed droplets, and the droplets solidify rapidly under the action of the cooler at the lower end of the atomization chamber, and are deposited on the substrate to obtain precursor particles with a deposition distance of 900mm;

[0...

Embodiment 3

[0039] Embodiment 3: A method for preparing an aluminum alloy drill pipe material with solid self-lubricating properties, the specific steps are as follows:

[0040] 1): Precursor preparation, first prepare Ti, Co, Cr, Fe, Ni, Cu metals according to the atomic ratio to prepare the raw materials, place them in the crucible melting furnace to be heated to melting, and then fill the melt into the metal in the spray deposition machine At the same time, the MoS2+C mixture with a particle size of 10μm is injected into the solid fluidized conveyor, and 0.85MPa high-pressure argon is passed into the metal liquid ladle and the solid fluidized conveyor to make the high-entropy alloy metal liquid and MoS2+C particles are atomized synchronously to form solid-liquid mixed droplets, and the droplets solidify rapidly under the action of the cooler at the lower end of the atomization chamber, and are deposited on the substrate to obtain precursor particles with a deposition distance of 900mm;

[0...

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Abstract

The invention discloses an aluminum alloy drill rod composite material with solid self-lubrication and a preparation method. The composite material consists of two parts: a substrate and a precursor,wherein the substrate comprises the following components in percentage by mass: 3.8-4.9% of Cu, 1.2-1.8% of Mg, 0.30-0.90% of Mn, and the balance of Al. The precursor is 20-30% of the substrate by mass; and the precursor is formed by a high-entropy alloy Ti2CoCrFeNiCu coating MoS2+C particles. The preparation method comprises the following steps: the precursor is prepared; the raw materials of thesubstrate are prepared; then, the precursor is injected in a solid particle fluidizing conveyor of spraying deposition equipment; finally, the raw materials of the substrate are molten by a cruciblesmelting furnace for flowing to a metal liquid pocket; and metal liquid and the precursor are synchronously atomized to form a solid-liquid atomization mixture for deposition to obtain a wear-resistance composite material casting blank with self-lubrication for extrusion molding.

Description

Technical field [0001] The invention belongs to the field of materials, and specifically relates to an aluminum alloy composite material with solid self-lubricating properties and a manufacturing method. Background technique [0002] With the growing population of social development, the demand for resources is increasing. At present, near-surface resources on land have been over-exploited. In order to meet the needs of social development, it is necessary to look for resources in the depths of the earth. As the drilling deepens, it is necessary to continuously connect drill pipes to extend the drill string, and its own weight continues to increase. It is very difficult to complete the drilling of deep and ultra-deep wells only by developing large-scale drilling rigs, especially when the drilling exceeds a certain depth. Time-dependent damage to the drill pipe, not to mention the existence of severe working conditions such as long open hole section, poor well wall stability, and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C32/00C22C1/05B22F3/115B22F9/08B22F3/20B22F3/24B33Y10/00B33Y70/00E21B17/00
CPCB22F3/115B22F3/20B22F3/24B22F9/082B22F2003/208B22F2003/248B22F2998/10B33Y10/00B33Y70/00C22C1/05C22C21/00C22C32/0089E21B17/00
Inventor 王泽彭涛杨桂东李小平雷卫宁陈菊芳张扬叶霞
Owner JIANGSU UNIV OF TECH
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