CN110643868A - Antioxidant metal for underwater operation and preparation method thereof - Google Patents
Antioxidant metal for underwater operation and preparation method thereof Download PDFInfo
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- CN110643868A CN110643868A CN201911051550.5A CN201911051550A CN110643868A CN 110643868 A CN110643868 A CN 110643868A CN 201911051550 A CN201911051550 A CN 201911051550A CN 110643868 A CN110643868 A CN 110643868A
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- underwater operation
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- aluminum alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention provides an antioxidant metal for underwater operation and a preparation method thereof. The invention provides an antioxidant metal for underwater operation, which is characterized by comprising the following components in percentage by weight: si: 0.2% -0.4%, Fe: 0.8% -1.4%, Cu: 0.5-1.2%, Mg: 2.1% -2.9%, Ti: 0.02 to 0.1%, Ni: 0.8% -1.3%, Si: 0.15-0.7%, Cr is less than or equal to 0.1%, Zn is less than or equal to 0.65%, and the balance is Al. The preparation method of the antioxidant metal for underwater operation disclosed by the invention has the advantages that through the combination of the change of the chemical components of the metal alloy and the optimization of the process parameters, the preparation method avoids pre-aging treatment after solid solution treatment, shortens the production flow and reduces the cost.
Description
Technical Field
The invention relates to the field of metal materials, in particular to an antioxidant metal for underwater operation and a preparation method thereof.
Background
At present, with the development of science and technology, the related fields of underwater operation and the like are rapidly improved, people usually adopt common metal materials for underwater operation, but due to the special problems of the materials, the common metal materials are easily oxidized in the using process, so that the materials are corroded, and the long-term use of the people is not facilitated.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides the antioxidant metal for underwater operation and the preparation method thereof.
The invention provides an antioxidant metal for underwater operation, which is characterized by comprising the following components in percentage by weight: si: 0.2% -0.4%, Fe: 0.8% -1.4%, Cu: 0.5-1.2%, Mg: 2.1% -2.9%, Ti: 0.02 to 0.1%, Ni: 0.8% -1.3%, Si: 0.15-0.7%, Cr is less than or equal to 0.1%, Zn is less than or equal to 0.65%, and the balance is Al.
Preferably, the antioxidant metal for underwater operation is characterized in that the weight ratio of Cu to Mg is 0.1-0.3: 0.9-1.0.
The invention also provides a preparation method of the antioxidant metal for underwater operation, which is characterized by comprising the following steps of:
s1: weighing all the raw materials, and casting to obtain an ingot;
s2: homogenizing: keeping the cast ingot obtained in the step S1 at 560 ℃ for 7-8h, and cooling to room temperature;
s3: peeling the cast ingot obtained in the step S2, extruding, stretching and straightening the section after extrusion, and performing heat treatment;
s4: surface layer treatment: and performing surface treatment on the section subjected to heat treatment in the step S3 according to a treatment route of surface grinding → degreasing → alkali washing → water washing → polishing → water washing → spraying → baking → vacuum electroplating to obtain the corrosion-resistant aluminum alloy.
The preparation method of the antioxidant metal for underwater operation is characterized in that in S3, the elongation is 1.5%.
The preparation method of the antioxidant metal for underwater operation is characterized in that if quenching treatment is carried out, tensile stretching is carried out within 20 hours after quenching and discharging.
The antioxidant metal for underwater operation of the invention adds Cu, Mg, Zn, Ni and Cr in Al as basic components for forming an Al-Cu-Mg-Zn system of superhard aluminum, and reasonably controls the weight ratio of the components, so that the antioxidant metal has higher hardness, and simultaneously greatly improves the corrosion resistance of the metal.
In addition, the preparation method of the antioxidant metal for underwater operation disclosed by the invention has the advantages that the preparation method avoids pre-aging treatment after solid solution treatment by combining the change of the chemical components of the metal alloy and the optimization of process parameters, so that the production flow is shortened, and the cost is reduced.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
The invention provides an antioxidant metal for underwater operation, which comprises the following components in percentage by weight: si: 0.2%, Fe: 0.8%, Cu: 0.5%, Mg: 2.1%, Ti: 0.02%, Ni: 0.8%, Si: 0.15%, Cr: 0.09%, Zn: 0.65% and the balance of Al.
Preferably, the antioxidant metal for underwater operation is characterized in that the weight ratio of Cu to Mg is 0.1-0.3: 0.9-1.0.
The invention also provides a preparation method of the antioxidant metal for underwater operation, which is characterized by comprising the following steps:
s1: weighing all the raw materials, and casting to obtain an ingot;
s2: homogenizing: keeping the cast ingot obtained in the step S1 at the temperature of 560 ℃ for 7h, and cooling to room temperature;
s3: peeling the cast ingot obtained in the step S2, extruding, stretching and straightening the section after extrusion, and performing heat treatment;
s4: surface layer treatment: and performing surface treatment on the section subjected to heat treatment in the step S3 according to a treatment route of surface grinding → degreasing → alkali washing → water washing → polishing → water washing → spraying → baking → vacuum electroplating to obtain the corrosion-resistant aluminum alloy.
The preparation method of the corrosion-resistant aluminum alloy is characterized in that in S3, the stretching ratio is 1.5%.
The preparation method of the corrosion-resistant aluminum alloy is characterized in that if quenching treatment is carried out, tension stretching is carried out within 24 hours after quenching and discharging.
Experiments show that the obtained corrosion-resistant aluminum alloy has higher hardness than common aluminum alloy, improved corrosion resistance and excellent mechanical property.
Example 2
The invention provides a corrosion-resistant aluminum alloy which comprises the following components in percentage by weight: si: 0.3%, Fe: 1.1%, Cu: 0.9%, Mg: 2.5%, Ti: 0.06%, Ni: 1.0%, Si: 0.4%, Cr: 0.01%, Zn: 0.55 percent and the balance of Al.
Preferably, the corrosion-resistant aluminum alloy is characterized in that the weight ratio of Cu to Mg is 0.2-0.3: 0.8-1.1.
The invention also provides a preparation method of the corrosion-resistant aluminum alloy, which is characterized by comprising the following steps of:
s1: weighing all the raw materials, and casting to obtain an ingot;
s2: homogenizing: placing the ingot obtained in the S1 at 565 ℃ for heat preservation for 7.5h, and then cooling to room temperature;
s3: peeling the cast ingot obtained in the step S2, extruding, stretching and straightening the section after extrusion, and performing heat treatment;
s4: surface layer treatment: and performing surface treatment on the section subjected to heat treatment in the step S3 according to a treatment route of surface grinding → degreasing → alkali washing → water washing → polishing → water washing → spraying → baking → vacuum electroplating to obtain the corrosion-resistant aluminum alloy.
The preparation method of the corrosion-resistant aluminum alloy is characterized in that in S3, the stretching ratio is 1.4%.
The preparation method of the corrosion-resistant aluminum alloy is characterized in that if quenching treatment is carried out, tension stretching is carried out within 20 hours after quenching and discharging.
Experiments show that the obtained corrosion-resistant aluminum alloy has higher hardness than common aluminum alloy, improved corrosion resistance and excellent mechanical property.
Example 3
The invention provides a corrosion-resistant aluminum alloy which comprises the following components in percentage by weight: si: 0.4%, Fe: 1.4%, Cu: 1.2%, Mg: 2.9%, Ti: 0.1%, Ni 1.3%, Si: 0.7 percent of Cr, 0.06 percent of Zn, 0.45 percent of Zn and the balance of Al.
Preferably, the corrosion-resistant aluminum alloy is characterized in that the weight ratio of Cu to Mg is 0.2-0.3: 0.8-1.1.
The invention also provides a preparation method of the corrosion-resistant aluminum alloy, which is characterized by comprising the following steps of:
s1: weighing all the raw materials, and casting to obtain an ingot;
s2: homogenizing: keeping the cast ingot obtained in the S1 at 560 ℃ for 7h, and cooling to room temperature;
s3: peeling the cast ingot obtained in the step S2, extruding, stretching and straightening the section after extrusion, and performing heat treatment;
s4: surface layer treatment: and performing surface treatment on the section subjected to heat treatment in the step S3 according to a treatment route of surface grinding → degreasing → alkali washing → water washing → polishing → water washing → spraying → baking → vacuum electroplating to obtain the corrosion-resistant aluminum alloy.
The preparation method of the corrosion-resistant aluminum alloy is characterized in that in S3, the stretching ratio is 1.3%.
The preparation method of the corrosion-resistant aluminum alloy is characterized in that if quenching treatment is carried out, tension stretching is carried out within 20 hours after quenching and discharging.
Experiments show that the obtained corrosion-resistant aluminum alloy has higher hardness than common aluminum alloy, improved corrosion resistance and excellent mechanical property.
Claims (5)
1. The antioxidant metal for underwater operation is characterized by comprising the following components in percentage by weight: si: 0.2% -0.4%, Fe: 0.8% -1.4%, Cu: 0.5-1.2%, Mg: 2.1% -2.9%, Ti: 0.02 to 0.1%, Ni: 0.8% -1.3%, Si: 0.15-0.7%, Cr is less than or equal to 0.1%, Zn is less than or equal to 0.65%, and the balance is Al.
2. The oxidation-resistant metallic material for underwater operation as claimed in claim 1, wherein the weight ratio of Cu to Mg is from 0.1 to 0.3: 0.9-1.0.
3. A method for preparing the oxidation-resistant metal for underwater operation according to claims 1-2, comprising the steps of:
s1: weighing all the raw materials, and casting to obtain an ingot;
s2: homogenizing: keeping the cast ingot obtained in the S1 at the temperature for 7-8h, and cooling to room temperature;
s3: peeling the cast ingot obtained in the step S2, extruding, stretching and straightening the section after extrusion, and performing heat treatment;
s4: surface layer treatment: and performing surface treatment on the section subjected to heat treatment in the step S3 according to a treatment route of surface grinding → degreasing → alkali washing → water washing → polishing → water washing → spraying → baking → vacuum electroplating to obtain the corrosion-resistant aluminum alloy.
4. The method for preparing an oxidation-resistant metal for underwater operation as claimed in claim 3, wherein the elongation at S3 is 1.5%.
5. The method for producing an oxidation-resistant metal for underwater operation as claimed in claim 3, wherein the tension drawing is performed within 20 hours after the quenching and tapping if the quenching treatment is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911051550.5A CN110643868A (en) | 2019-10-31 | 2019-10-31 | Antioxidant metal for underwater operation and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911051550.5A CN110643868A (en) | 2019-10-31 | 2019-10-31 | Antioxidant metal for underwater operation and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110643868A true CN110643868A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911051550.5A Pending CN110643868A (en) | 2019-10-31 | 2019-10-31 | Antioxidant metal for underwater operation and preparation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN110643868A (en) |
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2019
- 2019-10-31 CN CN201911051550.5A patent/CN110643868A/en active Pending
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Application publication date: 20200103 |