CN110724851A - Heat-resistant corrosion-resistant alloy for switch socket and preparation method thereof - Google Patents
Heat-resistant corrosion-resistant alloy for switch socket and preparation method thereof Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C9/00—Alloys based on copper
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- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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Abstract
The invention belongs to the technical field of alloy materials, and particularly relates to a heat-resistant corrosion-resistant alloy for a switch socket and a preparation method thereof, wherein the heat-resistant corrosion-resistant alloy comprises the following components in percentage by mass: 17-21 wt% of Zn, Al: 2-3 wt%, Sn: 1.20 to 1.80 wt%, Si: 0.60 to 0.75 wt%, Mn: 0.20 to 0.35 wt%, Cr: 0.30 to 0.50 wt%, Zr: 0.15 to 0.40 wt%, Nb: 0.10 to 0.25 wt%, Mo: 0.08 to 0.15 wt%, and the balance being Cu. The components of the heat-resistant corrosion-resistant alloy for the switch socket are optimized and adjusted, the consumption of noble metals in raw materials is low, the cost is low, and all elements are synergistic, so that the hardness, the strength, the conductivity and the wear resistance of the alloy are obviously improved, particularly the heat resistance and the corrosion resistance of the alloy are improved, the alloy can be used in most severe environments, and the service life is long; meanwhile, the preparation method provided by the invention is simple and feasible in process and has a wide prospect.
Description
Technical Field
The invention belongs to the technical field of alloy materials, and particularly relates to a heat-resistant corrosion-resistant alloy for a switch socket and a preparation method thereof.
Background
With the popularization of household appliances, the number of switch sockets in a home is also gradually increased. The switch socket is an electric appliance switch and socket which are installed on a wall and used for connecting and disconnecting a circuit. The plug bush is an important component of the socket, most of the plug bush is folded into a U shape with a tight opening by a contact piece, and the plug bush has certain elasticity and conductivity. In China, most of plug bushes are made of tin-phosphor bronze materials, and although the tin-phosphor bronze materials are high in strength, good in plasticity, good in conductivity and not prone to deformation, the tin-phosphor bronze materials are expensive, poor in heat resistance, prone to corrosion and short in service life.
Through retrieval documents, patent with publication number CN105506359A discloses a corrosion-resistant wear-resistant high-conductivity alloy for sockets, which not only has higher conductivity, hardness and excellent corrosion resistance, but also has excellent properties such as elasticity and strength, and basically reaches or exceeds the properties of common tin-phosphor bronze materials, and can completely meet the requirements of socket plug bushes on the materials, but the heat resistance of the alloy of the invention is not ideal, and the conductivity and mechanical properties of the alloy can be influenced to a certain extent under high temperature conditions; the patent with publication number CN105568046A discloses a high-strength alloy for sockets, which not only has higher tensile strength, but also has excellent properties such as electrical conductivity, elasticity, hardness, etc., and basically reaches or exceeds the properties of common tin-phosphor bronze materials, and can completely meet the requirements of socket plug bushes on the materials, and the alloy is a very suitable substitute material, and the consumption of noble metals is small, and the cost is greatly reduced, but the corrosion resistance of the alloy of the invention still can hardly reach the use requirements.
Disclosure of Invention
The invention aims to provide a heat-resistant corrosion-resistant alloy for a switch socket and a preparation method thereof, aiming at the existing problems.
The invention is realized by the following technical scheme:
the heat-resistant corrosion-resistant alloy for the switch socket comprises the following components in percentage by mass: 17-21 wt% of Zn, Al: 2-3 wt%, Sn: 1.20 to 1.80 wt%, Si: 0.60 to 0.75 wt%, Mn: 0.20 to 0.35 wt%, Cr: 0.30 to 0.50 wt%, Zr: 0.15 to 0.40 wt%, Nb: 0.10 to 0.25 wt%, Mo: 0.08 to 0.15 wt%, and the balance being Cu.
Further, the paint comprises the following components in percentage by mass: 19 wt% of Zn, Al: 2.50 wt%, Sn: 1.60 wt%, Si: 0.68 wt%, Mn: 0.26 wt%, Cr: 0.40 wt%, Zr: 0.25 wt%, Nb: 0.19 wt%, Mo: 0.12 wt% and the balance Cu.
Furthermore, in the content ratio of Zn, Al and Sn, the sum of the contents of Zn, Al and Sn is 20.8-25.2 wt%, and the sum of the contents of Zn and Al is 19.6-23.4 wt%.
Furthermore, in the content ratio of the Cr and the Zr, the sum of the contents of the Cr and the Zr is 0.55 to 0.80wt percent.
Further, the preparation method of the heat-resistant corrosion-resistant alloy for the switch socket comprises the following steps:
(1) weighing pure Zn, electrolytic Al, pure Sn, pure Cr, pure Mn, pure Zr, pure Nb and pure Mo according to the mass percentage, putting the pure Zn, the electrolytic Al, the pure Sn, the pure Cr, the pure Mn, the pure Zr, the pure Nb and the pure Mo into a vacuum smelting furnace for smelting, adding a Cu-Si intermediate alloy for continuous smelting after the pure Zn, the electrolytic Al, the pure Sn, the pure Cr, the pure Mn, the pure Zr, the pure Nb and the pure Mo are melted, and performing drawing;
(2) extruding the cast ingot by adopting a hot extrusion process, and processing the cast ingot into a plate blank at the temperature of 800-850 ℃;
(3) carrying out solution treatment on the plate blank, wherein the temperature of the solution treatment is 950-1000 ℃, the heat preservation time is 1-1.5 h, and then carrying out water quenching to obtain a cold plate blank;
(4) acid cleaning is carried out on the cold blank plate, and oxides on the surface of the cold blank plate are removed;
(5) and (3) carrying out primary cold deformation on the cold plate blank subjected to pickling, then carrying out primary aging treatment under a protective atmosphere, then carrying out secondary cold deformation, then carrying out secondary aging treatment under the protective atmosphere, finally carrying out stress relief annealing treatment at a set temperature, and cooling along with a furnace to obtain the heat-resistant corrosion-resistant alloy for the switch socket.
Further, the vacuum degree of the vacuum smelting furnace in the step (1) is less than 0.1Pa, and the smelting temperature is 1100-1300 ℃.
Furthermore, in the step (5), the first cold deformation is subjected to cold working deformation by adopting a machining rate of 50-70%, and the second cold deformation is subjected to cold working deformation by adopting a machining rate of 20-40%.
Further, the temperature of the main aging treatment in the step (5) is 250-325 ℃, the time is 8-15 hours, the temperature of the secondary aging treatment is 375-450 ℃, the time is 6-10 hours, and the temperature of the stress-relief annealing treatment is 150-200 ℃.
Further, the protective gas used in the protective atmosphere in the step (5) is argon.
The heat-resistant corrosion-resistant alloy for the switch socket disclosed by the invention takes Cu, Zn, Al and Sn as main alloy elements, Si, Cr, Mn, Zr, Nb and Mo as micro-alloy elements, the elements play a role in improving the alloy quality in addition to exerting the characteristics of the elements in the alloy, and physical or chemical reactions among the elements play a role in making the alloy quality very light, wherein the added Zn, Al and Sn have high solid solubility in a matrix element Cu, can form a continuous solid solution with Cu, and respectively have wide single-phase regions, so that the mechanical property and the corrosion resistance of the alloy can be obviously improved; however, Zn, Al and Sn are added into the alloy to reduce the conductivity of the alloy, the added Cr and Zr can keep the high conductivity of the alloy, and the Cr and Zr can form a compound Cr with Si3Si and ZrSi can obviously improve the strength and high-temperature stability of the alloy, the sum of the contents of Cr and Zr is 0.55-0.80 wt%, the strength and the electric conductivity of the alloy material reach higher levels, when the sum of the contents of Cr and Zr is less than 0.55 wt%, the electric conductivity is obviously reduced, the strength is also at lower levels, and when the sum of the contents of Cr and Zr is more than 0.80 wt%, the electric conductivity of the alloy material is basically stable, but the strength is lower; the added Nb and Mo can refine crystal grains and increase the recrystallization temperature, so that the alloy has high heat resistance; the added Mn can be used as a deoxidizer in the smelting process and can also improve the fluidity of the melt.
Compared with the prior art, the invention has the following advantages:
the components of the heat-resistant corrosion-resistant alloy for the switch socket are optimized and adjusted, the consumption of noble metals in raw materials is low, the cost is low, and all elements are synergistic, so that the hardness, the strength, the conductivity and the wear resistance of the alloy are obviously improved, particularly the heat resistance and the corrosion resistance of the alloy are improved, the alloy can be used in most severe environments, and the service life is long; meanwhile, the preparation method provided by the invention is simple and feasible in process and has a wide prospect.
Detailed Description
Example 1
The heat-resistant corrosion-resistant alloy for the switch socket comprises the following components in percentage by mass: 17 wt% Zn, Al: 3 wt%, Sn: 1.20 wt%, Si: 0.60 wt%, Mn: 0.20 wt%, Cr: 0.30 wt%, Zr: 0.25 wt%, Nb: 0.10 wt%, Mo: 0.09 wt% and the balance Cu.
Wherein the sum of the contents of Zn, Al and Sn is 21.2 wt%, the sum of the contents of Zn and Al is 20 wt%, and the sum of the contents of Cr and Zr is 0.55%.
A preparation method of a heat-resistant corrosion-resistant alloy for a switch socket comprises the following steps:
(1) weighing pure Zn, electrolytic Al, pure Sn, pure Cr, pure Mn, pure Zr, pure Nb and pure Mo according to the mass percentage, smelting in a vacuum smelting furnace with the vacuum degree of 0.08Pa at the temperature of 1100 ℃, adding a Cu-Si intermediate alloy after melting, continuously smelting, and after all raw materials are melted and mixed uniformly, casting into an ingot at the temperature of 1150 ℃;
(2) extruding the cast ingot by adopting a hot extrusion process, and processing the cast ingot into a plate blank at the temperature of 800 ℃;
(3) carrying out solid solution treatment on the plate blank, wherein the temperature of the solid solution treatment is 950 ℃, the heat preservation time is 1h, and then carrying out water quenching to obtain a cold plate blank;
(4) acid cleaning is carried out on the cold blank plate, and oxides on the surface of the cold blank plate are removed;
(5) carrying out primary cold deformation on the cold plate blank subjected to pickling, then carrying out primary aging treatment in an argon protective atmosphere, then carrying out secondary cold deformation, then carrying out secondary aging treatment in the argon protective atmosphere, finally carrying out stress relief annealing treatment at a set temperature, and cooling along with a furnace to obtain the heat-resistant corrosion-resistant alloy for the switch socket; wherein the first cold deformation adopts 50 percent of working rate for cold working deformation, the second cold deformation adopts 20 percent of working rate for cold working deformation, the temperature of the main aging treatment is 250 ℃, the time is 8 hours, the temperature of the secondary aging treatment is 375 ℃, the time is 6 hours, and the temperature of the stress relief annealing treatment is 15 ℃.
Example 2
The heat-resistant corrosion-resistant alloy for the switch socket comprises the following components in percentage by mass: 19 wt% of Zn, Al: 2.50 wt%, Sn: 1.60 wt%, Si: 0.68 wt%, Mn: 0.26 wt%, Cr: 0.40 wt%, Zr: 0.25 wt%, Nb: 0.19 wt%, Mo: 0.12 wt% and the balance Cu.
Wherein the sum of the contents of Zn, Al and Sn is 23.1 wt%, the sum of the contents of Zn and Al is 21.5 wt%, and the sum of the contents of Cr and Zr is 0.65 wt%.
A preparation method of a heat-resistant corrosion-resistant alloy for a switch socket comprises the following steps:
(1) weighing pure Zn, electrolytic Al, pure Sn, pure Cr, pure Mn, pure Zr, pure Nb and pure Mo according to the mass percentage, smelting in a vacuum smelting furnace with the vacuum degree of 0.1Pa at the temperature of 1150 ℃, adding a Cu-Si intermediate alloy after melting, continuously smelting, and after all raw materials are melted and mixed uniformly, casting into an ingot at 1170 ℃;
(2) extruding the cast ingot by adopting a hot extrusion process, and processing the cast ingot into a plate blank at 820 ℃;
(3) carrying out solid solution treatment on the plate blank, wherein the temperature of the solid solution treatment is 970 ℃, the heat preservation time is 1.2h, and then carrying out water quenching to obtain a cold plate blank;
(4) acid cleaning is carried out on the cold blank plate, and oxides on the surface of the cold blank plate are removed;
(5) carrying out primary cold deformation on the cold plate blank subjected to pickling, then carrying out primary aging treatment in an argon protective atmosphere, then carrying out secondary cold deformation, then carrying out secondary aging treatment in the argon protective atmosphere, finally carrying out stress relief annealing treatment at a set temperature, and cooling along with a furnace to obtain the heat-resistant corrosion-resistant alloy for the switch socket; wherein the first cold deformation adopts 55 percent of working rate for cold deformation, the second cold deformation adopts 30 percent of working rate for cold deformation, the temperature of the main aging treatment is 275 ℃, the time is 9 hours, the temperature of the secondary aging treatment is 410 ℃, the time is 7 hours, and the temperature of the stress relief annealing treatment is 160 ℃.
Example 3
The heat-resistant corrosion-resistant alloy for the switch socket comprises the following components in percentage by mass: 20 wt% of Zn, Al: 2.6 wt%, Sn: 1.70 wt%, Si: 0.72 wt%, Mn: 0.32 wt%, Cr: 0.45 wt%, Zr: 0.30 wt%, Nb: 0.10 to 0.25 wt%, Mo: 0.08 to 0.15 wt%, and the balance being Cu.
Wherein the sum of the contents of Zn, Al and Sn is 24.3 wt%, the contents of Zn and Al are 22.6 wt%, and the sum of the contents of Cr and Zr is 0.75 wt%.
A preparation method of a heat-resistant corrosion-resistant alloy for a switch socket comprises the following steps:
(1) weighing pure Zn, electrolytic Al, pure Sn, pure Cr, pure Mn, pure Zr, pure Nb and pure Mo according to the mass percentage, smelting in a vacuum smelting furnace with the vacuum degree of 0.1Pa at the temperature of 1200 ℃, adding a Cu-Si intermediate alloy after the melting, continuously smelting, and after all raw materials are melted and uniformly mixed, carrying out drawing casting at the temperature of 1220 ℃ to form an ingot;
(2) extruding the cast ingot by adopting a hot extrusion process, and processing the cast ingot into a plate blank at the temperature of 830 ℃;
(3) carrying out solid solution treatment on the plate blank, wherein the temperature of the solid solution treatment is 980 ℃, the heat preservation time is 1.5h, and then carrying out water quenching to obtain a cold plate blank;
(4) acid cleaning is carried out on the cold blank plate, and oxides on the surface of the cold blank plate are removed;
(5) carrying out primary cold deformation on the cold plate blank subjected to pickling, then carrying out primary aging treatment in an argon protective atmosphere, then carrying out secondary cold deformation, then carrying out secondary aging treatment in the argon protective atmosphere, finally carrying out stress relief annealing treatment at a set temperature, and cooling along with a furnace to obtain the heat-resistant corrosion-resistant alloy for the switch socket; wherein the first cold deformation adopts 60 percent of working rate for cold working deformation, the second cold deformation adopts 30 percent of working rate for cold working deformation, the temperature of the main aging treatment is 305 ℃, the time is 12 hours, the temperature of the secondary aging treatment is 410 ℃, the time is 9 hours, and the temperature of the stress relief annealing treatment is 180 ℃.
Example 4
The heat-resistant corrosion-resistant alloy for the switch socket comprises the following components in percentage by mass: 21 wt% of Zn, Al: 2.1 wt%, Sn: 1.80 wt%, Si0.75wt%, Mn: 0.35 wt%, Cr: 0.40 wt%, Zr: 0.40 wt%, Nb: 0.25 wt%, Mo: 0.15 wt%, and the balance being Cu.
Wherein the sum of the contents of Zn, Al and Sn is 24.9 wt%, the sum of the contents of Zn and Al is 23.1 wt%, and the sum of the contents of Cr and Zr is 0.80 wt%.
A preparation method of a heat-resistant corrosion-resistant alloy for a switch socket comprises the following steps:
(1) weighing pure Zn, electrolytic Al, pure Sn, pure Cr, pure Mn, pure Zr, pure Nb and pure Mo according to the mass percentage, smelting in a vacuum smelting furnace with the vacuum degree of 0.1Pa at the temperature of 1100-1300 ℃, adding a Cu-Si intermediate alloy after melting, continuously smelting, and performing drawing casting to form an ingot at the temperature of 1250 ℃ after all raw materials are melted and uniformly mixed;
(2) extruding the cast ingot by adopting a hot extrusion process, and processing the cast ingot into a plate blank at the temperature of 850 ℃;
(3) carrying out solid solution treatment on the plate blank, wherein the temperature of the solid solution treatment is 1000 ℃, the heat preservation time is 1.5h, and then carrying out water quenching to obtain a cold plate blank;
(4) acid cleaning is carried out on the cold blank plate, and oxides on the surface of the cold blank plate are removed;
(5) carrying out primary cold deformation on the cold plate blank subjected to pickling, then carrying out primary aging treatment in an argon protective atmosphere, then carrying out secondary cold deformation, then carrying out secondary aging treatment in the argon protective atmosphere, finally carrying out stress relief annealing treatment at a set temperature, and cooling along with a furnace to obtain the heat-resistant corrosion-resistant alloy for the switch socket; wherein the first cold deformation adopts a machining rate of 70% for cold machining deformation, the second cold deformation adopts a machining rate of 40% for cold machining deformation, the temperature of the main aging treatment is 250-325 ℃, the time is 15 hours, the temperature of the secondary aging treatment is 450 ℃, the time is 10 hours, and the temperature of the stress relief annealing treatment is 200 ℃.
Comparative example 1
In this comparative example 1, Al and Sn were omitted from the composition as compared with example 2, except that other components and manufacturing steps were the same.
Comparative example 2
In comparison with example 2, in this comparative example 2, Cr and Zr were omitted from the components except that the other components and the manufacturing steps were the same.
Comparative example 3
In this comparative example 3, compared with example 2, in the composition, Cr: 0.30 wt%, Zr: 0.15 wt%, and the sum of the contents of Cr and Zr is 0.45 wt%, except for the other components and the manufacturing steps being the same.
Comparative example 4
In this comparative example 4, compared with example 2, in the composition, Cr: 0.50 wt%, Zr: 0.40 wt%, and the sum of the contents of Cr and Zr is 0.90 wt%, except for the other components and the manufacturing steps being the same.
Comparative example 5
In comparison with example 2, in this comparative example 5, Nb and Mo were omitted from the composition, except that the other components and the manufacturing steps were the same.
Alloy Performance testing
In order to compare the effects of the present invention, the performance tests of the alloys prepared in the above examples 1 to 4 and comparative examples 1 to 5 were performed, specifically, at room temperature, two sheets with the specification of 1mm × 100mm × 100mm were taken in each example, each sheet was etched in 8% NaOH and 10% HCl solutions for 5 days, and then the corrosion weight loss results (g) were calculated, and the test results are shown in table 1 below:
TABLE 1
The hardness, conductivity and tensile strength of the alloy prepared in the above examples 1 to 4 and comparative examples 1 to 5 were respectively tested at room temperature, and the test results are shown in table 2 below:
TABLE 2
The hardness and conductivity of the alloy prepared in the above example 2 and comparative example 5 were measured at room temperature, 50 ℃ and 75 ℃ respectively, and the results are shown in Table 3 below:
TABLE 3
It can be seen from table 1 that Al and Sn can significantly improve the corrosion resistance of the alloy; as shown in Table 2, the addition of Cr and Zr to the composition can maintain the high conductivity of the alloy, and the Cr and Zr can form a compound Cr with Si3Si and ZrSi can obviously improve the strength and high-temperature stability of the alloy, the sum of the contents of Cr and Zr is 0.55-0.80 wt%, the strength and the electric conductivity of the alloy material reach higher levels, when the sum of the contents of Cr and Zr is less than 0.55 wt%, the electric conductivity is obviously reduced, the strength is also at lower levels, and when the sum of the contents of Cr and Zr is more than 0.80 wt%, the electric conductivity of the alloy material is basically stable, but the strength is lower; as can be seen from Table 3, the addition of Nb and Mo imparts a high heat resistance to the alloy.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The heat-resistant corrosion-resistant alloy for the switch socket is characterized by comprising the following components in percentage by mass: 17-21 wt% of Zn, Al: 2-3 wt%, Sn: 1.20 to 1.80 wt%, Si: 0.60 to 0.75 wt%, Mn: 0.20 to 0.35 wt%, Cr: 0.30 to 0.50 wt%, Zr: 0.15 to 0.40 wt%, Nb: 0.10 to 0.25 wt%, Mo: 0.08 to 0.15 wt%, and the balance being Cu.
2. The heat-resistant corrosion-resistant alloy for the switch socket according to claim 1, which comprises the following components in percentage by mass: 19 wt% of Zn, Al: 2.50 wt%, Sn: 1.60 wt%, Si: 0.68 wt%, Mn: 0.26 wt%, Cr: 0.40 wt%, Zr: 0.25 wt%, Nb: 0.19 wt%, Mo: 0.12 wt% and the balance Cu.
3. The alloy according to claim 1 or 2, wherein the sum of the contents of Zn, Al and Sn in the composition ratio of Zn, Al and Sn is 20.8-25.2 wt%, and the sum of the contents of Zn and Al is 19.6-23.4 wt%.
4. The heat-resistant corrosion-resistant alloy for switch sockets as claimed in claim 1 or 2, wherein the sum of the contents of Cr and Zr in the ratio of Cr and Zr is 0.55 to 0.80 wt%.
5. The method for preparing the heat-resistant corrosion-resistant alloy for the switch socket according to claim 1 or 2, comprising the following steps of:
weighing pure Zn, electrolytic Al, pure Sn, pure Cr, pure Mn, pure Zr, pure Nb and pure Mo according to the mass percentage, putting the pure Zn, the electrolytic Al, the pure Sn, the pure Cr, the pure Mn, the pure Zr, the pure Nb and the pure Mo into a vacuum smelting furnace for smelting, adding a Cu-Si intermediate alloy for continuous smelting after the pure Zn, the electrolytic Al, the pure Sn, the pure Cr, the pure Mn, the pure Zr, the pure Nb and the pure Mo are melted, and performing drawing;
extruding the cast ingot by adopting a hot extrusion process, and processing the cast ingot into a plate blank at the temperature of 800-850 ℃;
carrying out solution treatment on the plate blank, wherein the temperature of the solution treatment is 950-1000 ℃, the heat preservation time is 1-1.5 h, and then carrying out water quenching to obtain a cold plate blank;
acid cleaning is carried out on the cold blank plate, and oxides on the surface of the cold blank plate are removed;
and (3) carrying out primary cold deformation on the cold plate blank subjected to pickling, then carrying out primary aging treatment under a protective atmosphere, then carrying out secondary cold deformation, then carrying out secondary aging treatment under the protective atmosphere, finally carrying out stress relief annealing treatment at a set temperature, and cooling along with a furnace to obtain the heat-resistant corrosion-resistant alloy for the switch socket.
6. The method for preparing the heat-resistant corrosion-resistant alloy for the switch socket according to claim 5, wherein the vacuum degree of a vacuum melting furnace in the step (1) is less than 0.1Pa, and the melting temperature is 1100-1300 ℃.
7. The method for preparing the heat-resistant corrosion-resistant alloy for the switch socket according to claim 5, wherein the cold deformation in the step (5) is performed by cold working at a working rate of 50-70% in the first cold deformation, and is performed by cold working at a working rate of 20-40% in the second cold deformation.
8. The method for preparing the heat-resistant corrosion-resistant alloy for the switch socket according to claim 5, wherein the temperature of the primary aging treatment in the step (5) is 250-325 ℃ and the time is 8-15 h, the temperature of the secondary aging treatment is 375-450 ℃ and the time is 6-10 h, and the temperature of the stress relief annealing treatment is 150-200 ℃.
9. The method for preparing the heat-resistant corrosion-resistant alloy for the switch socket as claimed in claim 5, wherein the protective gas used in the protective atmosphere in the step (5) is argon.
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