Method for simultaneously improving corrosion resistance and heat resistance of aluminum-copper-magnesium alloy oil well pipe
A technology of corrosion resistance and heat resistance, which is applied in the field of simultaneously improving the corrosion resistance and heat resistance of aluminum-copper-magnesium alloy oil well pipes, can solve the problem of lack of heat resistance, etc. The effect of corrosion resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0028] The alloy composition is: 3.6% Cu, 1.7% Mg, 0.6% Ag, 0.6% Mn, 0.05% Ti, the balance is Al, and the sum of each component is 100%, the alloy Cu / Mg is 2.12.
[0029] The preparation process of the alloy follows the following steps: (1) prepare the alloy ingot according to the above formula, the alloy melting temperature is 720 ° C, (2) the ingot is first kept at 400 ° C for 24 hours, and then the temperature is raised to 490 ° C for 24 hours, (3) remove the head, cut the tail, and mill the face of the ingot after the homogenization annealing, and hot-roll it into a 2mm thick plate after being kept at 430 ° C for 2 hours. 15%, or hot-extruded into rods or pipes after being kept at 430°C for 2 hours, and the extrusion ratio is ≥10; Hours later, it was quenched with water at room temperature, and then aged at 170°C for 3 hours.
[0030] According to the GB / T228.1-2010 national standard, room temperature and high temperature tensile tests and corrosion strength loss tests we...
Embodiment 2
[0033] The alloy composition is: 3.8% Cu, 1.6% Mg, 0.5% Ag, 0.6% Mn, 0.05% Ti, the balance is Al, and the sum of each component is 100%, the alloy Cu / Mg is 2.38.
[0034]The preparation process of the alloy follows the following steps: (1) prepare the alloy ingot according to the above formula, the alloy melting temperature is 750 ° C, (2) the ingot is first kept at 400 ° C for 24 hours, and then the temperature is raised to 480 ° C for 36 hours, (3) Remove the head, cut the tail, and mill the face of the ingot after homogenization annealing, and heat it at 440°C for 1.5h, and then hot-roll it into a plate with a thickness of 2mm. 40%, or hot-extruded into rods or pipes after heat preservation at 440°C for 1.5 hours, with an extrusion ratio of ≥10; After 0.5 hour, water quenching, and aging at 180°C for 2 hours.
[0035] According to the GB / T228.1-2010 national standard, room temperature and high temperature tensile tests and corrosion strength loss tests were carried out on ...
Embodiment 3
[0038] The alloy composition is: 4.0% Cu, 1.5% Mg, 0.45% Ag, 0.6% Mn, 0.05% Ti, the balance is Al, and the sum of each component is 100%, the alloy Cu / Mg is 2.67.
[0039] The preparation process of the alloy follows the following steps: (1) prepare the alloy ingot according to the above formula, the alloy melting temperature is 725 ° C, (2) the ingot is first kept at 400 ° C for 24 hours, and then the temperature is raised to 470 ° C for 36 hours, (3) remove the head, cut the tail, and mill the face of the ingot after the homogenization annealing, and hot-roll it into a 2mm thick plate after being kept at 450°C for 1h. 20%, or hot-extruded into rods or pipes after heat preservation at 450°C for 1 hour, with an extrusion ratio of ≥10; After 1 hour, it was quenched in water, and then aged at 190°C for 1 hour.
[0040] According to the GB / T228.1-2010 national standard, room temperature and high temperature tensile tests and corrosion strength loss tests were carried out on the ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| tensile strength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More