CN112323071A - Aluminum-based sacrificial anode material designed by carbide active sites and preparation method - Google Patents
Aluminum-based sacrificial anode material designed by carbide active sites and preparation method Download PDFInfo
- Publication number
- CN112323071A CN112323071A CN202011203327.0A CN202011203327A CN112323071A CN 112323071 A CN112323071 A CN 112323071A CN 202011203327 A CN202011203327 A CN 202011203327A CN 112323071 A CN112323071 A CN 112323071A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- carbon powder
- melt
- anode material
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 87
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000010405 anode material Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000956 alloy Substances 0.000 claims abstract description 36
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 29
- 229910052786 argon Inorganic materials 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000007664 blowing Methods 0.000 claims abstract description 12
- 229910016384 Al4C3 Inorganic materials 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 abstract description 25
- 238000005260 corrosion Methods 0.000 abstract description 25
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000002161 passivation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229910018571 Al—Zn—Mg Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/12—Electrodes characterised by the material
- C23F13/14—Material for sacrificial anodes
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1057—Reactive infiltration
- C22C1/1063—Gas reaction, e.g. lanxide
-
- 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
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
Abstract
The invention provides an aluminum-based sacrificial anode material designed by carbide active sites and a preparation method thereof, wherein industrial pure aluminum is heated to be molten; carrying out argon protection on the melted industrial pure aluminum melt; blowing carbon powder into the molten aluminum melt, wherein the content of the carbon powder is controlled within the range of 0.1-1 wt%; blowing carbon powder into the industrial pure aluminum melt along with argon gas, preserving heat for 1h, and fully finishing reaction of the carbon powder and the aluminum melt under the condition of stirring by the argon gas: 4Al +3C → Al4C3Reducing the vacuum degree to atmospheric pressure, cooling to 700 ℃, adding the alloy block until the alloy block is completely melted, and keeping the temperature for 5 minutes; stirring the aluminum-based anode alloy material melt by using argon to fully mix the alloy components; and casting the novel active aluminum-based anode material to finish the preparation of the material. The invention effectively improves the anode materialThe active solubility is uniform, thereby providing effective corrosion protection for steel oil pipes and sleeves serving under high-temperature and high-pressure environments and deep sea and polar region ocean engineering equipment.
Description
Technical Field
The invention relates to an aluminum-based sacrificial anode material and a preparation method thereof, in particular to an aluminum-based sacrificial anode material designed by carbide active sites and a preparation method thereof.
Background
At present, compared with conventional magnesium alloy and zinc alloy, the aluminum-based alloy as the sacrificial anode material has the self characteristics of large capacitance, low driving potential and excellent anode dissolution performance, embodies the remarkable advantages of high current efficiency and long service life, and is widely applied to the construction of marine engineering equipment of ships. Therefore, the excellent electrochemical characteristics of the aluminum alloy sacrificial anode material have a strong engineering application prospect, but the problem of local corrosion is a difficult problem which is not solved in the application process of the aluminum alloy sacrificial anode material. Due to the special material service working condition environment of the oil and gas field, no mature public report that the underground sacrificial anode material achieves the obvious protection effect is reported. Related researchers In marine environment continuously improve the formula of the aluminum alloy sacrificial anode material through years of research, high-activation alloy elements such as Zn, In, Sn, Mg and the like are added to form a multi-element aluminum-based alloy, the dissolution performance of the aluminum-based anode is improved through a multi-element alloying idea, the alloy design also faces the problems of poor dissolution performance and low discharge performance efficiency In deep sea, and the protection efficiency is less than 65%. At present, the research on the material corrosion protection of the underground pipe column by the sacrificial anode cathodic protection technology is still in an exploration stage, the design theory of the material of the sacrificial anode 'dissolving-redeposition' under the ocean working condition cannot be completely applied, and the design theory of the underground sacrificial anode material is not established. The service effect of the traditional aluminum-based sacrificial anode is not ideal in the practical field application condition of the oil well in the tower and river work area with high-temperature, high-salinity and strong-corrosivity oil-water medium in the northwest oil field, the surface of the anode material is passivated and seriously corroded locally, the current efficiency is reduced due to the degradation of the solubility, the oil well oil and the casing can not be effectively protected, the standard of field oil pipe protection can not be completely met, and the higher requirement is provided for the solubility of the aluminum alloy sacrificial anode.
In the long-term exploitation process of the northwest oil field, the underground oil pipe faces serious corrosion problems along with the rise of comprehensive water content and complex medium environment. Under the conditions of high temperature and strong corrosive medium in the well, the oil pipe is not moved for a long time, and the high corrosion risk exists. The field problems of perforation, fracture and corrosion damage of a sealing surface of a pipe column caused by corrosion of an oil pipe seriously affect the normal and safe production of an oil field, thereby bringing frequent well repair burden and serious economic loss. As the well depth of the northwest oil field generally exceeds 5000m and even reaches more than 8000m in the well depth of the northwest production area, the oil pipe faces strong oxygen corrosion due to large-area adoption of a water injection and gas injection oil displacement mode, the traditional Zn sacrificial anode has the phenomena of passivation and potential reversal in a high-temperature environment with the underground temperature of the northwest oil field exceeding 120 ℃, and the aluminum-based anode material has the problem of poor local corrosion and dissolution performance so as to influence the effective protection of the aluminum-based anode material on the oil pipe. The safety of the underground oil pipe in the service process is taken as a first consideration factor, the sacrificial anode has the advantages of simple structure, controllable cost and no attached risk as a passive protection technology, and the sacrificial anode is started to work and discharge when the pipe column is corroded to provide current to protect the steel oil pipe from being corroded. In order to ensure the service safety of the underground pipe column, the research and development of the underground high-performance sacrificial anode material of the oil well oil pipe are urgently needed to be carried out, the oil pipe sacrificial anode material with temperature resistance meeting the requirement of an ultra-deep well with the temperature higher than 160 ℃ is completed through the research on the carbon component active site design, material smelting and corrosion electrochemical behavior of the sacrificial anode material, a novel aluminum-based anode material with economical efficiency and protective performance is provided for the development of the corrosion protection work of the underground oil pipe, and important technical support is provided for the safety, continuity and stable development of an oil field. Meanwhile, the safe service life of the underground pipe column can be prolonged, and the influence of material corrosion on the safety of the underground pipe column is minimized, so that the economic cost of oil field production is reduced. Therefore, the traditional high-performance aluminum-based sacrificial anode material is improved by developing scientific component design, the advantages of the sacrificial anode as a low-cost and high-reliability material protection technology are exerted to the greatest extent, and the great improvement of the dissolution and discharge performance of the sacrificial anode is a work with scientific value and engineering significance.
Disclosure of Invention
The invention aims to solve the problem of the function deterioration of a sacrificial anode material commonly existing in the service working conditions of ultra-deep and high-temperature oil wells in the west and extreme materials in deep sea and polar regions, and provides an aluminum-based sacrificial anode material with a carbon-containing active site design and a preparation method thereof.
The purpose of the invention is realized as follows:
an aluminum-based sacrificial anode material designed by carbide active sites is prepared by the following method:
step 1, industrial pure aluminum is processed under the condition of vacuum degree of 1 multiplied by 10-1Pa to-10-2The heating temperature is 1000-1100 ℃ under the Pa condition and is in a molten state;
step 2, performing argon protection on the molten industrial pure aluminum melt;
step 3, blowing carbon powder into the molten aluminum melt, wherein the content of the carbon powder is controlled within the range of 0.1-1 wt%;
and 4, blowing carbon powder into the industrial pure aluminum melt along with argon gas, preserving heat for 1h, and fully finishing reaction of the carbon powder and the aluminum melt under the condition of argon gas stirring: 4Al +3C → Al4C3In-situ generation of Al with a geometric size of about 1 μm in an aluminum melt4C3Particles;
step 5, reducing the vacuum degree to atmospheric pressure, cooling to 700 ℃, adding the alloy block until the alloy block is completely melted, and keeping the temperature for 5 minutes;
step 6, stirring the aluminum-based anode alloy material melt by using argon to fully mix the alloy components;
step 7, casting the novel active aluminum-based anode material to complete the preparation of the material
The invention also includes such features:
the alloy block comprises 1 to 5 weight percent of industrial pure Zn and 0.5 to 1 weight percent of industrial pure Mg;
the size of the carbon powder is 1000-5000 meshes.
A preparation method of an aluminum-based sacrificial anode material designed by carbide active sites comprises the following steps:
step 1, industrial pure aluminum is processed under the condition of vacuum degree of 1 multiplied by 10-1Pa to-10-2The heating temperature is 1000-1100 ℃ under the Pa condition and is in a molten state;
step 2, performing argon protection on the molten industrial pure aluminum melt;
step 3, blowing carbon powder into the molten aluminum melt, wherein the content of the carbon powder is controlled within the range of 0.1-1 wt%;
and 4, blowing carbon powder into the industrial pure aluminum melt along with argon gas, preserving heat for 1h, and fully finishing reaction of the carbon powder and the aluminum melt under the condition of argon gas stirring: 4Al +3C → Al4C3In-situ generation of Al with a geometric size of about 1 μm in an aluminum melt4C3Particles;
step 5, reducing the vacuum degree to atmospheric pressure, cooling to 700 ℃, adding the alloy block until the alloy block is completely melted, and keeping the temperature for 5 minutes;
step 6, stirring the aluminum-based anode alloy material melt by using argon to fully mix the alloy components;
and 7, casting the novel active aluminum-based anode material to finish the preparation of the material.
Compared with the prior art, the invention has the beneficial effects that:
the method utilizes the characteristics of the carbide cathode phase to design the active sites of the aluminum-based anode material, causes a plurality of micro-couple reactions and chemical reactions on the surface of the anode material to destroy the integrity of the passivation film layer on the surface of the aluminum-based sacrificial anode material, and avoids forming a stable corrosion product deposition layer on the surface of the anode.
Meanwhile, gas released by reaction can play an effective stirring role to cause the corrosion product to be rapidly desorbed, and is beneficial to promoting the corrosion product to fall off, so that the uniform dissolving capacity of the aluminum-based sacrificial anode material is improved, the high-power discharge performance advantage is ensured to be exerted, and the aluminum-steel engineering structure can be effectively protected in deep sea, polar regions and severe corrosion environments of oil fields.
Drawings
FIG. 1 is a working principle diagram of designing an aluminum-based sacrificial anode material with carbide active sites;
FIG. 2 is a graph of the effect of carbide active site design on electrochemical dissolution performance of aluminum-based anode materials.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention designs the micro-couple active sites of the anode material in the Al-Zn-Mg alloy by utilizing the electrochemical characteristic that carbon element has a strong cathode phase, realizes the uniform distribution of the carbon cathode phase in the material by utilizing the stirring action of inert gas argon in the smelting process, and provides enough high-potential Al for the dissolution reaction in the water corrosion medium environment4C3The active site reacts with water (Al)4C3+12H2O→4Al(OH)3+3CH4) The released gas forms a stirring effect on the corrosion product, the problem that the corrosion product cannot be desorbed to form a deposit layer on the aluminum-based anode material to cause potential rise to form local corrosion is avoided, sufficient anode material fresh surface is subjected to anode discharge reaction, so that sufficient and uniform dissolution discharge of the aluminum-based anode is ensured, the principle that the carbide active site improves the anode dissolution performance is shown in the attached drawing 1, and the influence of the carbide on the anode active dissolution performance is shown in the attached drawing 2 from the measured potentiodynamic polarization curve.
FIG. 1: the working principle of designing the aluminum-based sacrificial anode material with carbide active sites is to utilize Al4C3The electrochemical characteristic of high potential of the particles forms micro-galvanic couple corrosion at the position of a local active site, and Al is simultaneously used for destroying the passivation film layer on the surface of the aluminum alloy4C3The particles and the water solution corrosion medium are subjected to chemical reaction to release gas to form turbulent stirring effect, so that corrosion products covered on the surface of the anode material can be effectively removed, a fresh anode surface is provided, and the anode material is ensured to haveThe effective activity is uniformly dissolved.
FIG. 2: as can be seen from a potentiodynamic polarization curve measured by the influence of carbide active site design on the electrochemical solubility of the aluminum-based anode material, the corrosion potential is reduced to a certain extent by adding the carbide due to the damage of a passivation film layer on the surface of the aluminum-based alloy anode material, the tafel slope of the anode is greatly improved, which shows that the in-situ generation of the carbide in the aluminum-based anode is beneficial to improving the active solubility of the aluminum-based anode in service in deep sea, polar regions and high-temperature working conditions of oil fields, and the active site design of the carbide has obvious contribution to the improvement of the electrochemical performance of the anode material.
Step 1, industrial pure aluminum is processed under the condition of vacuum degree of 1 multiplied by 10-1Pa to-10-2The heating temperature is 1000-1100 ℃ under the Pa condition, the molten state is realized, the oxygen removal provides guarantee for the subsequent reaction of carbon element and industrial pure aluminum melt, the consumption of carbon by oxygen is avoided, and the effective addition rate of the carbon element is improved;
step 2, performing argon protection on the molten industrial pure aluminum melt to provide stable thermodynamic conditions for the subsequent reaction of carbon elements and the aluminum melt;
step 3, blowing carbon powder with the size not only limited to 1000 meshes to 5000 meshes into the molten aluminum melt, wherein the content of the carbon powder is controlled within the range of 0.1 wt% -1 wt%, so that the carbon element is effectively and uniformly distributed and added in the aluminum;
and 4, blowing carbon powder into the industrial pure aluminum melt along with argon gas, preserving heat for 1 hour, and fully finishing reaction of the carbon powder and the aluminum melt under the condition of stirring the argon gas (4Al +3C → Al)4C3) Avoiding the influence of poor dispersion effect caused by insufficient wetting of the surfaces of the carbon powder and the aluminum melt on the reaction effect, thereby generating Al with the geometric dimension of about 1 mu m in situ in the aluminum melt4C3Particles;
step 5, reducing the vacuum degree to atmospheric pressure, cooling to 700 ℃, adding a plurality of alloy blocks but not limited to 1-5 wt% of industrial pure Zn and 0.5-1 wt% of industrial pure Mg until the alloy blocks are completely melted and preserving the heat for 5 minutes, realizing the addition of the aluminum-based sacrificial anode material alloy elements, and reducing the electrode potential of the aluminum anode material by alloying;
step 6, stirring the aluminum-based anode alloy material melt by using argon to fully mix the alloy components, thereby avoiding the problem of uneven distribution of the alloy components caused by concentration gradient of alloy elements and Al4C3 particles due to different densities;
and 7, designing a proper mould to cast the novel active aluminum-based anode material, and finishing the preparation and direct installation of the aluminum-based anode material to use.
In summary, the following steps: the invention belongs to a high-activity sacrificial anode material suitable for deep sea, polar regions or oil fields under extreme severe working conditions of high temperature, and can effectively improve the uniform activity and solubility of the anode material, thereby providing effective corrosion protection for steel oil pipes and casings serving under high-temperature and high-pressure environments and deep sea and polar region ocean engineering equipment.
Claims (4)
1. An aluminum-based sacrificial anode material designed by carbide active sites is characterized by being prepared by the following method:
step 1, industrial pure aluminum is processed under the condition of vacuum degree of 1 multiplied by 10-1Pa to-10-2The heating temperature is 1000-1100 ℃ under the Pa condition and is in a molten state;
step 2, performing argon protection on the molten industrial pure aluminum melt;
step 3, blowing carbon powder into the molten aluminum melt, wherein the content of the carbon powder is controlled within the range of 0.1-1 wt%;
and 4, blowing carbon powder into the industrial pure aluminum melt along with argon gas, preserving heat for 1h, and fully finishing reaction of the carbon powder and the aluminum melt under the condition of argon gas stirring: 4Al +3C → Al4C3In-situ generation of Al with a geometric size of about 1 μm in an aluminum melt4C3Particles;
step 5, reducing the vacuum degree to atmospheric pressure, cooling to 700 ℃, adding the alloy block until the alloy block is completely melted, and keeping the temperature for 5 minutes;
step 6, stirring the aluminum-based anode alloy material melt by using argon to fully mix the alloy components;
and 7, casting the novel active aluminum-based anode material to finish the preparation of the material.
2. The carbide active site engineered aluminum-based sacrificial anode material of claim 1, wherein said alloy mass is 1-5 wt% industrial pure Zn and 0.5-1 wt% industrial pure Mg.
3. The carbide active site engineered aluminum-based sacrificial anode material of claim 1, wherein the carbon powder is sized 1000 mesh to 5000 mesh.
4. A preparation method of an aluminum-based sacrificial anode material designed by carbide active sites is characterized by comprising the following steps:
step 1, industrial pure aluminum is processed under the condition of vacuum degree of 1 multiplied by 10-1Pa to-10-2The heating temperature is 1000-1100 ℃ under the Pa condition and is in a molten state;
step 2, performing argon protection on the molten industrial pure aluminum melt;
step 3, blowing carbon powder into the molten aluminum melt, wherein the content of the carbon powder is controlled within the range of 0.1-1 wt%;
and 4, blowing carbon powder into the industrial pure aluminum melt along with argon gas, preserving heat for 1h, and fully finishing reaction of the carbon powder and the aluminum melt under the condition of argon gas stirring: 4Al +3C → Al4C3In-situ generation of Al with a geometric size of about 1 μm in an aluminum melt4C3Particles;
step 5, reducing the vacuum degree to atmospheric pressure, cooling to 700 ℃, adding the alloy block until the alloy block is completely melted, and keeping the temperature for 5 minutes;
step 6, stirring the aluminum-based anode alloy material melt by using argon to fully mix the alloy components;
and 7, casting the novel active aluminum-based anode material to finish the preparation of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011203327.0A CN112323071A (en) | 2020-11-02 | 2020-11-02 | Aluminum-based sacrificial anode material designed by carbide active sites and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011203327.0A CN112323071A (en) | 2020-11-02 | 2020-11-02 | Aluminum-based sacrificial anode material designed by carbide active sites and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112323071A true CN112323071A (en) | 2021-02-05 |
Family
ID=74324217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011203327.0A Pending CN112323071A (en) | 2020-11-02 | 2020-11-02 | Aluminum-based sacrificial anode material designed by carbide active sites and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112323071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115247265A (en) * | 2021-04-27 | 2022-10-28 | 中国石油化工股份有限公司 | Oil pipe of cast high-temperature-resistant sacrificial anode and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150079417A1 (en) * | 2012-04-11 | 2015-03-19 | SIEMENS AKTIENGESELLSCHAFT ü | Anti-corrosion and anti-erosion protective layer containing aluminium |
| CN104677783A (en) * | 2015-02-12 | 2015-06-03 | 上海交通大学 | Quantitative detecting method for interface reaction degree of aluminum-carbon composite material |
| CN104726737A (en) * | 2015-04-02 | 2015-06-24 | 东南大学 | Degradable aluminum-base material |
| CN105568091A (en) * | 2016-03-10 | 2016-05-11 | 中国科学院海洋研究所 | Low-driving-potential aluminum alloy sacrificial anode material and preparation method thereof |
-
2020
- 2020-11-02 CN CN202011203327.0A patent/CN112323071A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150079417A1 (en) * | 2012-04-11 | 2015-03-19 | SIEMENS AKTIENGESELLSCHAFT ü | Anti-corrosion and anti-erosion protective layer containing aluminium |
| CN104677783A (en) * | 2015-02-12 | 2015-06-03 | 上海交通大学 | Quantitative detecting method for interface reaction degree of aluminum-carbon composite material |
| CN104726737A (en) * | 2015-04-02 | 2015-06-24 | 东南大学 | Degradable aluminum-base material |
| CN105568091A (en) * | 2016-03-10 | 2016-05-11 | 中国科学院海洋研究所 | Low-driving-potential aluminum alloy sacrificial anode material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| ，SHENGFA LIU ET AL.: "Grain refinement of AZ91D magnesium alloy by a new Mg-50%Al4C3 master alloy", 《JOURNAL OF ALLOYS AND COMPOUNDS》 * |
| B. BOSTAN ET AL.: "Microstructure characteristics in Al–C system after mechanical alloying and high temperature treatment", 《POWDER METALLURGY》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115247265A (en) * | 2021-04-27 | 2022-10-28 | 中国石油化工股份有限公司 | Oil pipe of cast high-temperature-resistant sacrificial anode and preparation method thereof |
| CN115247265B (en) * | 2021-04-27 | 2024-02-13 | 中国石油化工股份有限公司 | Cast high-temperature-resistant oil pipe with sacrificial anode and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Farooq et al. | Evaluating the performance of zinc and aluminum sacrificial anodes in artificial seawater | |
| CN104561673B (en) | A kind of rare earth modified aluminum alloy anode sheet and preparation method thereof | |
| CN101693999B (en) | Aluminum-zinc-tin system sacrificial anode material and preparation method thereof | |
| CN102605376A (en) | Sacrificial anode material | |
| CN101148767B (en) | Aluminum-zinc-indium series sacrificial anode material | |
| CN100432294C (en) | High petential magnesium alloy sacrificial anode material and its manufacturing method | |
| CN101768745A (en) | Magnesium sacrificial anode with high current efficiency and preparation method thereof | |
| CN113046755B (en) | High-temperature-resistant zinc alloy sacrificial anode and preparation method thereof | |
| Saeri et al. | Optimization of manganese and magnesium contents in As-cast aluminum-zinc-indium alloy as sacrificial anode | |
| CN109252170B (en) | Aluminum alloy sacrificial anode resistant to high-temperature oil stain seawater | |
| CN108359866B (en) | High-temperature-resistant aluminum alloy sacrificial anode material and preparation method and application thereof | |
| CN112323071A (en) | Aluminum-based sacrificial anode material designed by carbide active sites and preparation method | |
| CN113293384A (en) | Zinc-free aluminum alloy sacrificial anode | |
| CN101509092A (en) | Anti-corrosion Mg-Al-Zn-Mn cast magnesium alloy containing rare earth elementarysubstance Er | |
| CN110004328B (en) | Corrosion-resistant cast aluminum-lithium alloy and preparation method thereof | |
| CN107164720A (en) | A kind of cupric zincizing agent and its method for metal material zincizing | |
| CN101445935A (en) | Aluminum alloy sacrificial anode suitable for abyssal environment | |
| CN103088347B (en) | Storage tank coil pipe aluminium alloy sacrificial anode material and preparation method thereof | |
| CN112267120B (en) | Corrosion-resistant and high-temperature-resistant sacrificial anode material and preparation method thereof | |
| CN117107129A (en) | High-temperature-resistant strong cathode phase design aluminum alloy sacrificial anode material and preparation method thereof | |
| CN111621793B (en) | High-temperature-resistant zinc alloy sacrificial anode and preparation method thereof | |
| CN115874086A (en) | High-activity aluminum-based sacrificial anode and preparation method and application thereof | |
| CN113322467A (en) | Micro-zinc type aluminum alloy sacrificial anode | |
| WO2017034486A1 (en) | Aluminium alloy for sacrificial anode | |
| CN114737193A (en) | High-temperature-resistant sacrificial anode and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210205 |