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A kind of self-lubricating aluminum alloy composite material and preparation method thereof

A composite material and aluminum alloy technology, applied in the field of self-lubricating aluminum alloy composite materials and manufacturing, can solve the problems of environmental pollution of electrolytic cell waste liquid, short service life, inability to meet the requirements of drill pipe use, etc. Long service life and low friction coefficient

Active Publication Date: 2020-05-05
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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  • A kind of self-lubricating aluminum alloy composite material and preparation method thereof
  • A kind of self-lubricating aluminum alloy composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: A kind of aluminum-based composite material and additive manufacturing method with self-lubricating drill pipe, the specific steps are as follows:

[0024] 1) Preparation of reinforcement: Ti, Co, Cr, Fe, Ni, and Al metals are prepared according to the atomic ratio as raw materials, placed in a crucible melting furnace and heated to melt, and then the melt is injected into the molten metal bag in the spray deposition machine , while MoS with a particle size of 10 μm 2 Filled into the solid fluidized conveyor, high entropy alloy and MoS 2 The mass ratio is 6:4, and 0.85MPa high-pressure argon gas is passed into the molten metal bag and the solid fluidized conveyor to make the high-entropy alloy metal liquid and MoS 2 The particles are atomized synchronously to form solid-liquid mixed droplets, which are rapidly solidified under the action of the cooler at the lower end of the atomization chamber, and deposited on the substrate to obtain reinforcement parti...

Embodiment 2

[0030] Embodiment 2: A kind of aluminum-based composite material and additive manufacturing method with self-lubricating drill pipe, the specific steps are as follows:

[0031] 1) Preparation of reinforcement: Ti, Co, Cr, Fe, Ni, and Al metals are prepared according to the atomic ratio as raw materials, placed in a crucible melting furnace and heated to melt, and then the melt is injected into the molten metal bag in the spray deposition machine , while MoS with a particle size of 10 μm 2 Filled into the solid fluidized conveyor, high entropy alloy and MoS 2The mass ratio is 6:4, and 0.7MPa high-pressure argon gas is passed into the molten metal bag and the solid fluidized conveyor to make the high-entropy alloy metal liquid and MoS 2 The particles are atomized synchronously to form solid-liquid mixed droplets, which are rapidly solidified under the action of the cooler at the lower end of the atomization chamber, and deposited on the substrate to obtain reinforcement particl...

Embodiment 3

[0037] Embodiment 3: A kind of aluminum-based composite material and additive manufacturing method with self-lubricating drill pipe, the specific steps are as follows:

[0038] 1) Preparation of reinforcement: Ti, Co, Cr, Fe, Ni, and Al metals are prepared according to the atomic ratio as raw materials, placed in a crucible melting furnace and heated to melt, and then the melt is injected into the molten metal bag in the spray deposition machine , while MoS with a particle size of 10 μm 2 Filled into the solid fluidized conveyor, high entropy alloy and MoS 2 The mass ratio is 6:4, and 0.8MPa high-pressure argon gas is passed into the molten metal bag and the solid fluidized conveyor respectively to make the high-entropy alloy molten metal and MoS 2 The particles are atomized synchronously to form solid-liquid mixed droplets, which are rapidly solidified under the action of the cooler at the lower end of the atomization chamber, and deposited on the substrate to obtain reinfor...

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Abstract

The invention provides a self-lubricating aluminum alloy composite material, the composite material is composed of a base material and a precursor, the base material is an aluminum alloy, and the mass fraction of each element in the aluminum alloy is 3.8-4.9% Cu , Mg 1.2-1.8%, Mn 0.30-0.90%, and the rest is Al. The precursor is high entropy alloy TiCoCrFeNiAl coated MoS 2 Particles account for 30-40% of the mass percentage of the substrate, and the particle diameter is 20-50 μm.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a self-lubricating aluminum alloy composite material and a manufacturing method. Background technique [0002] With the increasing population of social development, the demand for resources is increasing, and the current terrestrial near-surface resources have been over-exploited. In order to meet the needs of social development, it is necessary to search for resources deep in the earth. When the drilling is deepening, it is necessary to continuously connect the drill pipe to extend the drill string, and its self-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, the self-weight of the drill string can This will cause aging damage to the drill pipe, not to mention the harsh working conditions such as long open hole section, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C21/00C22C32/00C22F1/04B22F9/08B22F1/02
CPCC22C1/101C22C1/1015C22C1/1042C22C21/00C22C32/0089C22F1/04B22F9/082B22F1/17
Inventor 王泽李汶泽李小平卢雅琳谈衡杨晓红徐修玲雷卫宁叶霞
Owner JIANGSU UNIV OF TECH