CN111187954B - Aluminum alloy sacrificial anode material for improving water/gas interface protection effect of sewage storage tank and preparation method thereof - Google Patents
Aluminum alloy sacrificial anode material for improving water/gas interface protection effect of sewage storage tank and preparation method thereof Download PDFInfo
- Publication number
- CN111187954B CN111187954B CN202010124584.9A CN202010124584A CN111187954B CN 111187954 B CN111187954 B CN 111187954B CN 202010124584 A CN202010124584 A CN 202010124584A CN 111187954 B CN111187954 B CN 111187954B
- Authority
- CN
- China
- Prior art keywords
- storage tank
- aluminum alloy
- aluminum
- sacrificial anode
- anode material
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention relates to an aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of a sewage storage tank and a preparation method thereof, wherein the aluminum alloy sacrificial anode material comprises the following components in percentage by mass: 3.0-4.0% of Zn, 0.01-0.1% of In, 0.4-0.5% of Mg, 0.01-0.1% of Sn and the balance of Al. Smelting an aluminum ingot to obtain aluminum liquid, and continuously introducing inert gas for protection in the smelting process; after the heat of the aluminum liquid is preserved for 30-35 min, adding Zn into the aluminum liquid, melting and uniformly stirring, adding In, Mg and Sn until the materials are completely melted, uniformly stirring, slagging off, and preserving heat to obtain a mixed liquid; and casting and molding the mixed solution in a mold, and cooling to room temperature to prepare the aluminum alloy sacrificial anode material. According to the invention, by adding proper alloy element types and proportions, the aluminum alloy material capable of effectively protecting the water/gas interface position of the sewage storage tank is prepared, and is uniformly dissolved in the sewage storage tank.
Description
Technical Field
The invention belongs to the technical field of metal corrosion and protection, relates to an aluminum alloy anode material, and particularly relates to an aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of a sewage storage tank and a preparation method thereof.
Background
The storage tank plays an important role in crude oil sewage storage and transportation, but the components of the sewage are complex, corrosive ions are more, and the corrosion difference of different positions of the storage tank is large. Particularly, the liquid film is discontinuous at the water/gas interface due to the alternation of dryness and wetness, so that the protective current cannot reach the atmospheric region and the corrosion is easy to occur. The safety problems such as corrosion-induced perforation are often rare. Therefore, how to effectively prevent corrosion has become a problem to be solved urgently for enterprises. At present, sacrificial anode materials for protection are mainly magnesium-based alloy, zinc-based alloy and aluminum-based alloy. Of these, aluminum alloy sacrificial anode materials are most widely used because of their more negative potential, higher electrical and current efficiencies, and economic viability. In recent years, in order to research the influence of the additive elements on the aluminum alloy anode and further improve the performance of the aluminum alloy anode, research and improvement on multi-element aluminum alloy anode materials are continuously carried out. Among them, Al-Zn-In alloy anodes are the most widely used ones among aluminum-based alloys.
At present, the patent research reports of anode materials for effectively protecting a land crude oil sewage storage tank are less, the sewage storage tank contains two corrosion media of mud and water, the corrosion behaviors of the storage tank at different positions (a water/gas interface, a water phase, a water/mud interface and a mud phase) are different, and the protection effects of the anode materials on different positions are different. The existing typical Al-Zn-In-Cd aluminum alloy sacrificial anode material produced according to GB/T4948-2002 aluminum-zinc-indium series sacrificial anode finds that the anode surface is flaked and falls off, the efficiency is low, the protection effect at the water/gas interface of a storage tank is poor, and the situations of local corrosion, unstable potential and the like still exist In the practical operation. In addition, Cd is also a toxic element and is limited to use in some occasions. At present, In the existing aluminum alloy anode patent documents, no relevant patent technology description about the protection effect of the Al-Zn-In aluminum alloy on the water/gas interface or the whole position of a sewage storage tank is found.
Therefore, how to effectively adjust the types and the adding proportion of the alloy elements has important influence on the protective performance of the aluminum alloy in the dry-wet alternative environment of the water/gas interface of the sewage storage tank.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of the sewage storage tank and the preparation method thereof, and the aluminum alloy sacrificial anode material has good water/gas interface protection effect and more uniform dissolution for the sewage storage tank.
The invention is realized by the following technical scheme:
an aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of a sewage storage tank comprises the following components in percentage by mass: 3.0-4.0% of Zn, 0.01-0.1% of In, 0.4-0.45% of Mg, 0.01-0.05% of Sn and the balance of Al.
A preparation method of an aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of a sewage storage tank comprises the following steps:
(1) smelting an aluminum ingot to obtain aluminum liquid, and continuously introducing inert gas for protection in the smelting process;
(2) after the heat of the aluminum liquid is preserved for 30-35 min, adding Zn into the aluminum liquid, melting and uniformly stirring, adding In, Mg and Sn until the materials are completely melted, uniformly stirring, slagging off, and preserving heat to obtain a mixed liquid;
(3) and casting and molding the mixed solution in a mold, and cooling to room temperature to prepare the aluminum alloy sacrificial anode material.
Preferably, in step (1), the inert gas is nitrogen.
Preferably, in the step (1), the purity of the aluminum ingot is 99.99%, and the aluminum ingot is placed into a graphite crucible for smelting.
Preferably, in the step (1), the smelting temperature is 770-790 ℃.
Preferably, in the step (2), heat preservation is carried out for 2-2.5 hours after slag skimming.
Preferably, in the step (3), the casting temperature is 710-730 ℃.
Compared with the prior art, the invention has the following beneficial technical effects:
the anode material of the invention comprises the following components: zn is mainly to obtain a negative anode potential and a high current efficiency. As a result of extensive studies, it has been found that the current efficiency is low when the Zn content is less than 0.5%, while the effect is not significant when the Zn content is more than 10%, and therefore, about 5% of Zn is preferable. In can improve the activity of aluminum and make the potential of aluminum negatively shift; if the In content is too low, the activation effect cannot be fully achieved, and if the In content is too high, a segregation phase can be formed, the self-corrosion of the anode is aggravated, the current efficiency is reduced, and the In proportion needs to be controlled to be 0.01-0.1%. The addition of Mg can effectively improve the performance of the aluminum alloy anode, and specifically shows that the microstructure and the impurity state of the aluminum alloy can be changed, so that the surface corrosion and dissolution are more uniform, the electrochemical performance of the anode is improved, and the self-corrosion rate of the anode is reduced, but if the content of Mg exceeds 0.5%, the effect is opposite, and the content of Mg is in the range of 0.4-0.5%. The Sn has the characteristics of low content and remarkable influence on the alloy performance, and researches show that the Sn can exist as Sn2+ and Sn4+ in the aluminum alloy, and a plurality of negative and positive ion defects are generated on an oxide film on the surface of the Sn, so that the further dissolution of the aluminum alloy is accelerated. The certain content of Sn can obviously improve the potential and the current efficiency of the aluminum alloy anode, and when the Sn is higher than a certain content, the current efficiency is reduced, preferably not more than 0.1 percent. Indoor coupon experiments show that the surface of the water/gas interface of the storage tank of the aluminum alloy material obtained within the element requirement range is flat and smooth after the coupon experiments, the corrosion does not occur basically, the machining appearance of the material is still kept, the surface corrosion condition of the water/gas interface of the storage tank is greatly improved compared with the surface corrosion condition of the water/gas interface of the storage tank after the Al-Zn-In-Cd anode protection, the sacrificial anode material has the advantages that the protection effect of the sacrificial anode material on the cathode coupon at the water/gas interface is more obvious than that of the cathode coupon protected by the Al-Zn-In-Cd aluminum alloy, the protection effect of other positions (water phase, water/mud interface and mud phase) is also very obvious, and the corrosion phenomenon is almost avoided. According to the invention, by adding proper alloy element types and proportions, the aluminum alloy material capable of effectively protecting the water/gas interface position of the sewage storage tank is prepared, and is uniformly dissolved in the sewage storage tank, so that the actual working condition requirement of the sewage storage tank can be met, and the aluminum alloy material has good market prospect and popularization and application values.
Drawings
FIG. 1 is a schematic diagram of an indoor hanging piece simulating actual working conditions;
FIG. 2 is a surface macro topography diagram of the sacrificial anode aluminum alloy material after electrochemical testing in example 1 of the present invention;
FIG. 3 is a surface macro topography diagram of a typical Al-Zn-In-Cd sacrificial anode aluminum alloy material after electrochemical testing;
FIG. 4 is a surface micro-erosion topography at the water/gas interface of a storage tank without protection;
FIG. 5 is a typical microscopic corrosion topography at the water/gas interface of a storage tank after Al-Zn-In-Cd anodic protection;
FIGS. 6, 7, 8 and 9 are respectively a surface micro-corrosion topography at the storage tank water/gas interface after protection of the sacrificial anode material according to examples 1, 2, 3 and 4 of the present invention;
FIGS. 10 to 11 are respectively a surface micro-corrosion topography at the water/gas interface of the storage tank after the sacrificial anode material of comparative examples 1 to 2 is protected according to the present invention;
FIG. 12 is a microscopic corrosion topography of the surface of the storage tank at the water phase after the sacrificial anode material is protected according to example 1 of the present invention;
FIG. 13 is a microscopic corrosion topography of the surface at the water/mud interface of the storage tank after the sacrificial anode material is protected according to example 1 of the present invention;
FIG. 14 is a microscopic corrosion topography of the surface of the storage tank mud phase after the sacrificial anode material is protected in embodiment 1 of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
An aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of a sewage storage tank comprises the following components in percentage by mass: 3.0-4.0% of Zn, 0.01-0.1% of In, 0.4-0.5% of Mg, 0.01-0.1% of Sn and the balance of Al.
The anode material of the invention comprises the following components: zn is mainly to obtain a negative anode potential and a high current efficiency. When the Zn content is less than 0.5%, the current efficiency is low, and when it is more than 10%, the effect is not obvious. Therefore, the amount of Zn added is preferably about 5%. In can improve the activity of aluminum and make its electric potential negative. If the In content is too low, the activation effect cannot be sufficiently achieved, and if the In content is too high, a segregation phase is formed, so that the self-corrosion of the anode is aggravated, and the current efficiency is reduced. The In addition ratio should be not more than 0.1%. The effective addition of Mg can change the microstructure of the aluminum alloy and the state of impurities, so that the surface corrosion and dissolution are more uniform, the electrochemical performance of the anode is improved, and the self-corrosion rate of the anode is reduced, but if the content of Mg exceeds 0.5%, the effect is opposite, and the content of Mg is in the range of 0.4-0.5%. Sn can be present as Sn2+, Sn4+ in the aluminum alloy, and many negative and positive ion defects are generated on the oxide film on the surface thereof, thereby accelerating further dissolution of the aluminum alloy. The certain content of Sn can obviously improve the potential and the current efficiency of the aluminum alloy anode, and when the Sn is higher than a certain content, the current efficiency is reduced, preferably not more than 0.1 percent.
The preparation method of the aluminum alloy sacrificial anode material comprises the following steps:
1) in the whole process of continuously introducing inert gas for protection, putting an aluminum ingot with the purity of 99.99 percent into a graphite crucible for smelting, and heating to a preset temperature to completely melt the aluminum ingot to obtain aluminum liquid;
2) after melting and heat preservation are carried out for 30-35 min, Zn is added into the molten aluminum according to the proportion, after melting and stirring uniformly, other alloy elements In, Mg and Sn are added In sequence until the alloy elements are completely melted, the mixture is gently stirred uniformly, then slag is removed, and heat preservation is carried out;
3) and finally, casting and molding in a mold, and cooling to room temperature to prepare the aluminum alloy casting.
In the step (1), the inert gas is nitrogen. The melting temperature is 770-790 ℃.
In the step (2), the heat preservation time is 2-2.5 h after slag skimming.
In the step (3), the pouring temperature is 710-730 ℃.
Example 1:
firstly, putting a high-purity aluminum ingot (with the purity of 99.99%) into a graphite crucible smelting furnace, heating to 780 ℃ to melt the aluminum ingot into aluminum liquid, then sequentially adding 3.7% of Zn, 0.03% of In, 0.45% of Mg and 0.065% of Sn into the aluminum liquid according to the mass percentage, uniformly stirring, raising the temperature to 780 ℃ and then preserving the temperature for 30 min. Then stirring and slagging off. Stirring thoroughly, and keeping the temperature at 780 deg.C for 2h to make it uniform. Finally, the molten liquid is poured into a mould, and the pouring temperature is 710 ℃. After the casting is cooled to room temperature, the aluminum alloy casting can be prepared; in the whole smelting process, inert gas nitrogen is used for protecting the melt, so that the burning loss of alloy elements is reduced. After the smelting is finished, detecting the alloy components of the sample by using an inductively coupled plasma emission spectrometer (ICP), wherein the actual chemical components are basically the same as the designed components.
Example 2:
firstly, putting a high-purity aluminum ingot (with the purity of 99.99%) into a graphite crucible smelting furnace, heating to 770 ℃, melting the aluminum ingot into aluminum liquid, then sequentially adding 3.0% of Zn, 0.01% of In, 0.4% of Mg and 0.01% of Sn into the obtained aluminum liquid according to the mass percentage, stirring uniformly, raising the temperature to 770 ℃, and then preserving the heat for 30 min. Then stirring and slagging off. Stirring thoroughly, and keeping the temperature at 770 deg.C for 2.2h to make it uniform. And finally, pouring the molten liquid into a mold, wherein the pouring temperature is 715 ℃. After the casting is cooled to room temperature, the aluminum alloy casting can be prepared; in the whole smelting process, inert gas nitrogen is used for protecting the melt, so that the burning loss of alloy elements is reduced. After the smelting is finished, detecting the alloy components of the sample by using an inductively coupled plasma emission spectrometer (ICP), wherein the actual chemical components are basically the same as the designed components.
Example 3:
firstly, putting a high-purity aluminum ingot (with the purity of 99.99%) into a graphite crucible smelting furnace, heating to 783 ℃ to melt the aluminum ingot into aluminum liquid, then sequentially adding 4.0% of Zn, 0.1% of In, 0.5% of Mg and 0.1% of Sn into the aluminum liquid according to the mass percentage, uniformly stirring, raising the temperature to 783 ℃, and then preserving the temperature for 30 min. Then stirring and slagging off. Stirring thoroughly, and keeping at 783 deg.C for 2h to make it uniform. Finally, the molten liquid is poured into a mould, and the pouring temperature is 722 ℃. After the casting is cooled to room temperature, the aluminum alloy casting can be prepared; in the whole smelting process, inert gas nitrogen is used for protecting the melt, so that the burning loss of alloy elements is reduced. After the smelting is finished, detecting the alloy components of the sample by using an inductively coupled plasma emission spectrometer (ICP), wherein the actual chemical components are basically the same as the designed components.
Example 4:
firstly, putting a high-purity aluminum ingot (with the purity of 99.99%) into a graphite crucible smelting furnace, heating to 790 ℃, melting the aluminum ingot into aluminum liquid, then sequentially adding 3.5% of Zn, 0.05% of In, 0.45% of Mg and 0.05% of Sn into the obtained aluminum liquid according to the mass percentage, stirring uniformly, raising the temperature to 790 ℃, and then preserving the heat for 35 min. Then stirring and slagging off. Stirring thoroughly, and keeping at 790 deg.C for 2.5h to make it uniform. And finally, pouring the molten liquid into a mold, wherein the pouring temperature is 730 ℃. After the casting is cooled to room temperature, the aluminum alloy casting can be prepared; in the whole smelting process, inert gas nitrogen is used for protecting the melt, so that the burning loss of alloy elements is reduced. After the smelting is finished, detecting the alloy components of the sample by using an inductively coupled plasma emission spectrometer (ICP), wherein the actual chemical components are basically the same as the designed components.
Comparative example 1:
firstly, putting a high-purity aluminum ingot (with the purity of 99.99%) into a graphite crucible smelting furnace, heating to 780 ℃ to melt the aluminum ingot into aluminum liquid, then sequentially adding 3.7% of Zn, 0.03% of In, 0.8% of Mg and 0.065% of Sn into the aluminum liquid according to the mass percentage, uniformly stirring, raising the temperature to 780 ℃ and then preserving the temperature for 30 min. Then stirring and slagging off. Stirring thoroughly, and keeping the temperature at 780 deg.C for 2h to make it uniform. Finally, the molten liquid is poured into a mould, and the pouring temperature is 710 ℃. After the casting is cooled to room temperature, the aluminum alloy casting can be prepared; in the whole smelting process, inert gas nitrogen is used for protecting the melt, so that the burning loss of alloy elements is reduced. After the smelting is finished, detecting the alloy components of the sample by using an inductively coupled plasma emission spectrometer (ICP), wherein the actual chemical components are basically the same as the designed components.
Comparative example 2:
firstly, putting a high-purity aluminum ingot (with the purity of 99.99%) into a graphite crucible smelting furnace, heating to 780 ℃ to melt the aluminum ingot into aluminum liquid, then sequentially adding 3.7% of Zn, 0.03% of In, 0.45% of Mg and 0.3% of Sn into the obtained aluminum liquid according to the mass percentage, uniformly stirring, raising the temperature to 780 ℃ and then preserving the temperature for 30 min. Then stirring and slagging off. Stirring thoroughly, and keeping the temperature at 780 deg.C for 2h to make it uniform. Finally, the molten liquid is poured into a mould, and the pouring temperature is 710 ℃. After the casting is cooled to room temperature, the aluminum alloy casting can be prepared; in the whole smelting process, inert gas nitrogen is used for protecting the melt, so that the burning loss of alloy elements is reduced. After the smelting is finished, detecting the alloy components of the sample by using an inductively coupled plasma emission spectrometer (ICP), wherein the actual chemical components are basically the same as the designed components.
As shown in figure 1, the aluminum alloy sacrificial anode of the invention is subjected to a coupon normal temperature immersion test, and the test medium is sewage in actual working conditions. The coupon after the protection of the water/gas interface of a typical Al-Zn-In-Cd anode was selected for comparison.
FIG. 2 is a surface macro topography diagram of the sacrificial anode aluminum alloy material after electrochemical test In example 1 of the present invention, which shows that the surface dissolution of the aluminum alloy sacrificial anode material is more uniform compared with the typical Al-Zn-In-Cd anode surface In FIG. 3.
FIG. 4 is a microscopic corrosion topography of the surface at the water/gas interface of the storage tank without protection, which shows that the surface corrosion at the water/gas interface of the storage tank is severe without protection. FIG. 5 is a typical microscopic corrosion morphology of the surface at the water/gas interface of the storage tank after the Al-Zn-In-Cd anodic protection, which shows that the corrosion of the surface at the water/gas interface of the storage tank after the Al-Zn-In-Cd anodic protection is significantly improved but still has a relatively significant corrosion phenomenon compared with the corrosion without protection. Fig. 6, fig. 7, fig. 8 and fig. 9 are respectively the microscopic corrosion topography of the surface at the water/gas interface of the storage tank after the sacrificial anode material is protected In embodiments 1, 2, 3 and 4 of the present invention, and it can be seen that the surface at the water/gas interface of the storage tank is flat and smooth within the required range of the elements of the present invention, and basically no corrosion occurs, the machining topography of the material is still maintained, and the corrosion condition of the surface at the water/gas interface of the storage tank is greatly improved compared with the corrosion condition of the surface at the water/gas interface of the storage tank after the anode protection of Al-Zn-In-Cd. When Mg exceeds the range required by the present invention (comparative example 1) or Sn exceeds the range required by the present invention (comparative example 2), a small amount of corrosion of the surface at the water/gas interface of the tank still occurs, as shown in fig. 10 and 11. Fig. 12 is a microscopic corrosion topography of the surface of the water phase of the storage tank after the sacrificial anode material is protected In example 1, fig. 13 is a microscopic corrosion topography of the surface of the water/mud interface of the storage tank after the sacrificial anode material is protected In example 1, and fig. 14 is a microscopic corrosion topography of the surface of the mud phase of the storage tank after the sacrificial anode material is protected In example 1.
In conclusion, compared with a typical Al-Zn-In-Cd aluminum alloy anode, the aluminum alloy sacrificial anode material prepared by the invention can remarkably improve the corrosion resistance of a water/gas interface of a storage tank, and the cathode hanging pieces have very remarkable protection effects on the water/gas interface and other positions. The prepared aluminum alloy sacrificial anode material has good performance and can be directly used for installation of a sewage storage tank under actual working conditions.
The embodiment shows that the process is simple and feasible, and the aluminum alloy material prepared according to the component proportion has a good protection effect on the water/gas interface of the sewage storage tank, and completely meets the use requirements of actual working conditions.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention. In addition to the above examples, the present invention can be variously embodied. All technical solutions formed by equivalent substitutions fall within the scope of the claimed invention.
Claims (7)
1. The aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of the sewage storage tank is characterized by comprising the following components in percentage by mass: 3.0-4.0% of Zn, 0.01-0.1% of In, 0.4-0.45% of Mg, 0.01-0.05% of Sn and the balance of Al.
2. The preparation method of the aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of the sewage storage tank, which is disclosed by claim 1, is characterized by comprising the following steps of:
(1) smelting an aluminum ingot to obtain aluminum liquid, and continuously introducing inert gas for protection in the smelting process;
(2) after the heat of the aluminum liquid is preserved for 30-35 min, adding Zn into the aluminum liquid, melting and uniformly stirring, adding In, Mg and Sn until the materials are completely melted, uniformly stirring, slagging off, and preserving heat to obtain a mixed liquid;
(3) and casting and molding the mixed solution in a mold, and cooling to room temperature to prepare the aluminum alloy sacrificial anode material.
3. The method for preparing the aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of the sewage storage tank as claimed in claim 2, wherein in the step (1), the inert gas is nitrogen.
4. The method for preparing an aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of a sewage storage tank according to claim 2, wherein in the step (1), the purity of the aluminum ingot is 99.99%, and the aluminum ingot is put into a graphite crucible for smelting.
5. The method for preparing the aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of the sewage storage tank according to claim 2, wherein in the step (1), the smelting temperature is 770-790 ℃.
6. The method for preparing the aluminum alloy sacrificial anode material with the improved water/gas interface protection effect of the sewage storage tank according to claim 2, wherein in the step (2), the temperature is kept for 2-2.5 hours after the slag is removed.
7. The method for preparing the aluminum alloy sacrificial anode material for improving the water/gas interface protection effect of the sewage storage tank according to claim 2, wherein in the step (3), the pouring temperature is 710-730 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124584.9A CN111187954B (en) | 2020-02-27 | 2020-02-27 | Aluminum alloy sacrificial anode material for improving water/gas interface protection effect of sewage storage tank and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124584.9A CN111187954B (en) | 2020-02-27 | 2020-02-27 | Aluminum alloy sacrificial anode material for improving water/gas interface protection effect of sewage storage tank and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111187954A CN111187954A (en) | 2020-05-22 |
| CN111187954B true CN111187954B (en) | 2021-06-01 |
Family
ID=70706756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010124584.9A Active CN111187954B (en) | 2020-02-27 | 2020-02-27 | Aluminum alloy sacrificial anode material for improving water/gas interface protection effect of sewage storage tank and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111187954B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424281B (en) * | 2020-05-28 | 2022-03-25 | 西安石油大学 | Oil well pipe column anticorrosion sacrificial anode alloy, component design method, preparation method and application |
| CN112210702A (en) * | 2020-10-16 | 2021-01-12 | 西安热工研究院有限公司 | High-current-efficiency aluminum alloy sacrificial anode material for improving protection effect of sewage storage tank and preparation method thereof |
| CN113097471B (en) * | 2021-03-16 | 2023-04-25 | 郑州大学 | Anode material for alkaline aluminum-air battery and preparation method thereof |
| CN113373450B (en) * | 2021-05-31 | 2023-04-11 | 安徽峘岳材料科技有限公司 | Anti-drop aluminum alloy sacrificial anode and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4023760B2 (en) * | 1999-01-11 | 2007-12-19 | 住友軽金属工業株式会社 | Aluminum alloy clad material for heat exchangers with excellent brazing and corrosion resistance |
| CN102605376B (en) * | 2011-05-27 | 2014-11-12 | 中国石油化工股份有限公司 | Sacrificial anode material |
| CN102212829A (en) * | 2011-05-30 | 2011-10-12 | 天津恒仁石油设备有限公司 | Aluminium alloy sacrificial anode with high capacitance and preparation method thereof |
| CN102808186A (en) * | 2012-08-29 | 2012-12-05 | 焦作盛世达轻合金技术有限公司 | Process for manufacturing aluminum alloy sacrificial anode |
| CN104060280B (en) * | 2014-07-02 | 2016-08-24 | 北京科技大学 | A kind of sacrificial aluminium alloy anode be applicable to abyssal environment with high current efficiency |
-
2020
- 2020-02-27 CN CN202010124584.9A patent/CN111187954B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111187954A (en) | 2020-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111187954B (en) | Aluminum alloy sacrificial anode material for improving water/gas interface protection effect of sewage storage tank and preparation method thereof | |
| CN113046755B (en) | High-temperature-resistant zinc alloy sacrificial anode and preparation method thereof | |
| CN110578070B (en) | Method for improving oxidation resistance of copper by using authigenic non-metallic oxide composite film | |
| CN105734588B (en) | A kind of abyssal environment high-performance aluminium alloy sacrificial anode and preparation method thereof | |
| CN112708809B (en) | Meta-aluminate-resistant rare earth aluminum alloy anode material and manufacturing method thereof | |
| CN104862710A (en) | Environment-friendly sacrificial zinc alloy anode | |
| CN114934205B (en) | Smelting method for nickel-based superalloy with high purity | |
| CN105244489A (en) | Aluminum-alloy anode material for battery and preparation method of aluminum-alloy anode material | |
| TW201629240A (en) | Corrosion resistant high-nickel alloy and its manufacturing method | |
| RU2687359C1 (en) | Magnesium casting alloy | |
| CN115889708A (en) | Casting method of aluminum alloy sacrificial anode | |
| KR20000050896A (en) | Mg-ca sacrificial anode | |
| CN112267120B (en) | Corrosion-resistant and high-temperature-resistant sacrificial anode material and preparation method thereof | |
| CN114737193B (en) | High-resistance Wen Xisheng anode and preparation method thereof | |
| CN110629088A (en) | High-utilization-rate magnesium alloy electrode material and manufacturing method thereof | |
| CN112210702A (en) | High-current-efficiency aluminum alloy sacrificial anode material for improving protection effect of sewage storage tank and preparation method thereof | |
| CN115198277B (en) | Zn-Li alloy sacrificial anode for deep sea and preparation method thereof | |
| CN111424281A (en) | Oil well pipe column anticorrosion sacrificial anode alloy, component design method, preparation method and application | |
| CN111180720A (en) | Aluminum air battery anode and preparation method thereof | |
| CN115679138B (en) | Method for improving corrosion damage resistance of conductor aluminum alloy | |
| CN110699578B (en) | High-zinc low-copper aluminum alloy with excellent corrosion resistance and preparation method thereof | |
| CN109338375A (en) | A kind of high-performance Al-Zn-In series sacrificial anode material and preparation method thereof | |
| CN115976391B (en) | High-temperature-resistant multi-principal-element intermetallic compound and preparation method thereof | |
| CN114481143A (en) | Rare earth modified zinc-based alloy sacrificial anode and preparation process thereof | |
| JP4436553B2 (en) | Aluminum alloy for low temperature seawater environmental current anode |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |