CN113846248A - Aluminum alloy material for textile machinery - Google Patents
Aluminum alloy material for textile machinery Download PDFInfo
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- CN113846248A CN113846248A CN202110751400.6A CN202110751400A CN113846248A CN 113846248 A CN113846248 A CN 113846248A CN 202110751400 A CN202110751400 A CN 202110751400A CN 113846248 A CN113846248 A CN 113846248A
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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
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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
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- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
Abstract
The invention discloses an aluminum alloy material for textile machinery, which comprises the following alloy components in percentage by weight: fe is less than or equal to 0.75 percent, Si is less than or equal to 0.50 percent, Mn is more than or equal to 0.95 percent and less than or equal to 1.35 percent, Mg is less than or equal to 0.20 percent, Cu is less than or equal to 0.10 percent, Cr is less than or equal to 0.05 percent, Ti is less than or equal to 0.03 percent, Zr is less than or equal to 0.03 percent, and the balance is aluminum, wherein the combination content of Mg and Cu satisfies the following relation of more than or equal to 0.18 percent and less than or equal to 0.25 percent in percentage by weight, and the Mg content in the aluminum alloy material is more than the Cu content. The aluminum alloy material for textile machinery has good corrosion resistance, can reduce internal stress and improve tensile strength.
Description
The technical field is as follows:
the invention relates to the field of manufacturing of textile machinery, in particular to an aluminum alloy material for the textile machinery.
Background art:
aluminum materials and aluminum alloy materials are lightweight and excellent in corrosion resistance, workability, decorativeness, strength, electrical conductivity, thermal conductivity, and the like, and are therefore used in various fields. The aluminum alloy material is widely applied to textile machinery and equipment in the forms of aluminum alloy stamping parts, aluminum tubes, aluminum plates, aluminum profiles, aluminum castings, forgings and the like. Although textile components made of aluminium alloy materials are resistant to many corrosive agents encountered in textile mills and yarn production to some extent in the prior art, their corrosion resistance is still to be further improved. The light weight and durable dimensional accuracy of the aluminum alloy material can improve the dynamic balance condition of a high-speed running machine component and reduce vibration, but in the process, the component prepared from the aluminum alloy material still has the defects of large internal stress and insufficient tensile strength, particularly for the integral aluminum alloy die forging of the pan head. Particularly, some of the pan heads provided in equipment involved in dyeing and printing processes, often come into contact with dyeing and finishing liquids, which contain chloride ions. The aluminum alloy material is easy to generate pitting corrosion in the environment with chloride ions, so the corrosion resistance of the aluminum alloy material in the prior art in the environment is not enough when the textile machinery is prepared.
The invention content is as follows:
the invention aims to solve the technical problem of providing an aluminum alloy material for textile machinery, which has good corrosion resistance, can reduce internal stress and improve tensile strength.
The technical scheme of the invention is to provide an aluminum alloy material for textile machinery, wherein the alloy components of the aluminum alloy material have the following weight percentage: fe is less than or equal to 0.75 percent, Si is less than or equal to 0.50 percent, Mn is more than or equal to 0.95 percent and less than or equal to 1.35 percent, Mg is less than or equal to 0.20 percent, Cu is less than or equal to 0.10 percent, Cr is less than or equal to 0.05 percent, Ti is less than or equal to 0.03 percent, Zr is less than or equal to 0.03 percent, and the balance is aluminum, wherein the combination content of Mg and Cu satisfies the following relation of more than or equal to 0.18 percent and less than or equal to 0.25 percent in percentage by weight, and the Mg content in the aluminum alloy material is more than the Cu content. Chromium forms (CrFe) Al in aluminum7And (CrMn) Al12The intermetallic compounds hinder the nucleation and growth process of recrystallization, strengthen the alloy to some extent, improve the toughness of the alloy and reduce the susceptibility to corrosion and cracking, and the titanium is used for improving the mechanical property of the alloy.
As a preferable technical scheme, in the aluminum alloy material, Mg is more than or equal to 0.12% and less than or equal to 0.15%, and Cu is more than or equal to 0.05 and less than or equal to 0.10%. When copper is blended into an aluminum alloy material, mechanical properties can be improved, but corrosion resistance is reduced, and thermal cracking is easily caused, and when the copper content exceeds 0.25%, strength and hardness of the alloy can be remarkably enhanced, but precipitation of Al-Cu causes contraction after die casting, and then the contraction is converted into expansion, so that the size of a casting is unstable, and a small amount of magnesium is added to suppress intergranular corrosion, and if the magnesium content is too high, fluidity is deteriorated, thermal brittleness is easily caused, and an impact value is also reduced. Meanwhile, the aluminum-magnesium alloy has good corrosion resistance, but the excessively high magnesium content has hot brittleness, so that a casting is cracked and is difficult to cast, so that how to keep the magnesium content at a balance point is very important, and the invention provides reasonable proportion limitation.
As a preferable technical scheme, in the aluminum alloy material, Si is more than or equal to 0.38% and less than or equal to 0.42%. Silicon is a main component for improving the flow property, in addition, the silicon can improve the tensile strength, but the elongation is reduced because the crystallized silicon is easy to form hard points, so the content of the silicon is set in a reasonable interval.
Preferably, an Al-Mg oxide coating film is formed on the surface of the aluminum alloy material, wherein the Al-Mg crystals having a circle equivalent diameter of 0.5 to 8.0 μm are present in the aluminum alloy material in an amount of 300 to 12000 crystals/mm2The number of Al-Mg crystals having a circle-equivalent diameter of more than 8.0 μm and not more than 12.0 μm is 15/mm2The following.
As a preferable technical scheme, in the aluminum alloy material, Mn is more than or equal to 0.98% and less than or equal to 1.25%. Manganese can improve the high-temperature strength of copper and silicon-containing alloy, prevent the recrystallization process of aluminum alloy, increase the recrystallization temperature, obviously refine recrystallized grains, and dissolve impurity iron by combining manganese and aluminum to form (Fe-Mn) Al6To reduce the deleterious effects of iron.
As a preferable technical scheme, the aluminum alloy material also comprises the following alloy components in percentage by weight, wherein Ni is more than or equal to 0.005% and less than or equal to 0.01%. Nickel and copper, like these, tend to increase tensile strength and hardness, but have a great influence on corrosion resistance, and nickel is added to improve high-temperature strength heat resistance, but it is important to control the amount, and the content is not preferably higher than 0.01%.
As a preferable technical scheme, the aluminum alloy material also comprises the following alloy components in percentage by weight, wherein Zn is more than or equal to 0.001 and less than or equal to 0.003 percent. Iron can obviously increase the recrystallization temperature of zinc and slow down the recrystallization process, but excessive iron can embrittle castings and deteriorate the machining performance, the fluidity of iron can also influence the smoothness of the casting surfaces, and the content is higher than 0.003 percent, so that the fluidity of the alloy can be reduced, and the quality of the castings is damaged.
Compared with the prior art, the invention has the following advantages after adopting the scheme: through reasonable proportioning, the components exert the advantages of the aluminum alloy as much as possible and reduce the side effects of the aluminum alloy as much as possible, so that the aluminum alloy material can effectively reduce the internal stress, improve the tensile strength and improve the corrosion resistance when used on textile machinery.
The specific implementation mode is as follows:
the invention is further illustrated with respect to specific embodiments below:
example 1
An aluminum alloy material for textile machinery, the alloy composition of the aluminum alloy material has the following percentage content by weight: the aluminum alloy material comprises, by weight, 0.65% of Fe, 0.40% of Si, 1.1% of Mn, 0.13% of Mg, 0.06% of Cu, 0.02% of Cr, 0.015% of Ti, 0.01% of Zr and the balance of aluminum, wherein the combination content of Mg and Cu satisfies the following relation of 0.18% to 0.25% of Mg + Cu, and the content of Mg in the aluminum alloy material is more than the content of Cu. Chromium forms (CrFe) Al in aluminum7And (CrMn) Al12The intermetallic compounds hinder the nucleation and growth process of recrystallization, strengthen the alloy to some extent, improve the toughness of the alloy and reduce the susceptibility to corrosion and cracking, and the titanium is used for improving the mechanical property of the alloy.
In the embodiment, silicon is a main component for improving the flow property, in addition, the silicon can improve the tensile strength, but the elongation is reduced because the crystallized and precipitated silicon is easy to form hard points, so the content of the silicon is set in a reasonable interval, the invention balances the advantages and the disadvantages of the silicon, further realizes the improvement of the tensile resistance by controlling the content of the silicon, and simultaneously reduces the generation of side effects of the silicon; when copper is blended into an aluminum alloy material, mechanical properties can be improved, but corrosion resistance is reduced, and thermal cracking is easily caused, and when the copper content exceeds 0.25%, strength and hardness of the alloy can be remarkably enhanced, but precipitation of Al-Cu causes contraction after die casting, and then the contraction is converted into expansion, so that the size of a casting is unstable, and a small amount of magnesium is added to suppress intergranular corrosion, and if the magnesium content is too high, fluidity is deteriorated, thermal brittleness is easily caused, and an impact value is also reduced. Meanwhile, the aluminum-magnesium alloy has good corrosion resistance, but the excessively high magnesium content has hot brittleness, so that a casting is cracked and is difficult to cast, and how to keep the magnesium content at a balance point is very important.
In addition, manganese can improve the high-temperature strength of copper and silicon-containing alloy, prevent the recrystallization process of aluminum alloy, increase the recrystallization temperature, obviously refine recrystallized grains, and dissolve impurity iron by combining manganese and aluminum to form (Fe-Mn) Al6To reduce the deleterious effects of iron.
Example 2
In example 2, 0.008% of Ni and 0.002% of Zn were added to example 1. Iron can obviously increase the recrystallization temperature of zinc and slow down the recrystallization process, but excessive iron can embrittle castings and deteriorate the machining performance, the fluidity of iron can also influence the smoothness of the casting surfaces, and the content is higher than 0.003 percent, so that the fluidity of the alloy can be reduced, and the quality of the castings is damaged. Nickel and copper, like those, tend to increase tensile strength and hardness, but have a great influence on corrosion resistance, and high-temperature strength heat resistance can be improved by adding nickel, but it is important to control the amount, and the content is not preferably higher than 0.01% but not lower than 0.006%.
And an Al-Mg oxide coating film is formed on the surface of the aluminum alloy material in view of corrosion resistance, wherein the Al-Mg series crystal with a circle equivalent diameter of 0.5-8.0 μm in the aluminum alloy material is 300-12000 crystals/mm2The number of Al-Mg crystals having a circle-equivalent diameter of more than 8.0 μm and not more than 12.0 μm is 15/mm2The following. In the production of the pan head and the beam, the aluminum alloy material before the oxide film is formed is immersed in an aqueous solution atmosphere having a chloride ion concentration of 0.5% or less, a pH of 4 to 10, and a liquid temperature of 65 ℃ or higher for 1 minute or more before casting.
And, in casting the pan head and beam, the cast aluminum alloy is cast into ingots by rolling; homogenizing the rolled ingot at 480-520 ℃ for at least 0.5 h; hot rolling the rolled ingot at 280 ℃ to 500 ℃ to form an aluminum alloy strip or rod; and carrying out recrystallization final annealing on the aluminum alloy strip.
The invention has the advantages that through reasonable proportioning, the components exert the advantages of the aluminum alloy as much as possible and the side effects are reduced as much as possible, so that the aluminum alloy material can effectively reduce the internal stress, improve the tensile strength and improve the corrosion resistance when used on textile machinery.
The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. All the equivalent structures or equivalent process changes made by the description of the invention are included in the scope of the patent protection of the invention.
Claims (7)
1. An aluminum alloy material for textile machinery is characterized in that: the aluminum alloy material comprises the following alloy components in percentage by weight: fe is less than or equal to 0.75 percent, Si is less than or equal to 0.50 percent, Mn is more than or equal to 0.95 percent and less than or equal to 1.35 percent, Mg is less than or equal to 0.20 percent, Cu is less than or equal to 0.10 percent, Cr is less than or equal to 0.05 percent, Ti is less than or equal to 0.03 percent, Zr is less than or equal to 0.03 percent, and the balance is aluminum, wherein the combination content of Mg and Cu satisfies the following relation of more than or equal to 0.18 percent and less than or equal to 0.25 percent in percentage by weight, and the Mg content in the aluminum alloy material is more than the Cu content.
2. The aluminum alloy material for textile machinery according to claim 1, characterized in that: in the aluminum alloy material, Mg is more than or equal to 0.12% and less than or equal to 0.15%, and Cu is more than or equal to 0.05 and less than or equal to 0.10%.
3. The aluminum alloy material for textile machinery according to claim 1, characterized in that: in the aluminum alloy material, Si is more than or equal to 0.38% and less than or equal to 0.42%.
4. The aluminum alloy material for textile machinery according to claim 1, characterized in that: an Al-Mg oxide coating film is formed on the surface of the aluminum alloy material, wherein the Al-Mg series crystal with the circle equivalent diameter of 0.5-8.0 μm existing in the aluminum alloy material is 300-12000 crystals/mm2A circle equivalent diameter of more than 8.0 μm and not more than 12.0 μmThe crystal number is 15/mm2The following.
5. The aluminum alloy material for textile machinery according to claim 1, characterized in that: in the aluminum alloy material, Mn is more than or equal to 0.98% and less than or equal to 1.25%.
6. The aluminum alloy material for textile machinery according to claim 1, characterized in that: the aluminum alloy material also comprises the following alloy components in percentage by weight, wherein Ni is more than or equal to 0.005% and less than or equal to 0.01%.
7. The aluminum alloy material for textile machinery according to claim 1, characterized in that: the aluminum alloy material also comprises the following alloy components in percentage by weight, wherein Zn is more than or equal to 0.001% and less than or equal to 0.003%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110751400.6A CN113846248A (en) | 2021-07-02 | 2021-07-02 | Aluminum alloy material for textile machinery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110751400.6A CN113846248A (en) | 2021-07-02 | 2021-07-02 | Aluminum alloy material for textile machinery |
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| CN113846248A true CN113846248A (en) | 2021-12-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1273614A (en) * | 1997-10-03 | 2000-11-15 | 雷诺兹金属公司 | Corrosion resistant and drawable aluminum alloy, article thereof and process of making article |
| US20110104001A1 (en) * | 2009-10-30 | 2011-05-05 | Akio Uesugi | Aluminum alloy sheet for lithographic printing plate |
| CN107502790A (en) * | 2017-08-18 | 2017-12-22 | 吴振江 | Nano-pore aluminum alloy materials and its manufacture method and protection system |
| CN109072446A (en) * | 2016-04-06 | 2018-12-21 | 株式会社Uacj | Aluminum alloy materials and its manufacturing method and the aluminum alloy clad sheet for using the aluminum alloy materials |
-
2021
- 2021-07-02 CN CN202110751400.6A patent/CN113846248A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1273614A (en) * | 1997-10-03 | 2000-11-15 | 雷诺兹金属公司 | Corrosion resistant and drawable aluminum alloy, article thereof and process of making article |
| US20110104001A1 (en) * | 2009-10-30 | 2011-05-05 | Akio Uesugi | Aluminum alloy sheet for lithographic printing plate |
| CN109072446A (en) * | 2016-04-06 | 2018-12-21 | 株式会社Uacj | Aluminum alloy materials and its manufacturing method and the aluminum alloy clad sheet for using the aluminum alloy materials |
| CN107502790A (en) * | 2017-08-18 | 2017-12-22 | 吴振江 | Nano-pore aluminum alloy materials and its manufacture method and protection system |
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Application publication date: 20211228 |
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