CN112593115A - Processing technology of high-voltage switch contact piece - Google Patents
Processing technology of high-voltage switch contact piece Download PDFInfo
- Publication number
- CN112593115A CN112593115A CN202011522925.4A CN202011522925A CN112593115A CN 112593115 A CN112593115 A CN 112593115A CN 202011522925 A CN202011522925 A CN 202011522925A CN 112593115 A CN112593115 A CN 112593115A
- Authority
- CN
- China
- Prior art keywords
- contact
- contact piece
- voltage switch
- piece
- processing technology
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin 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
-
- 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
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
The invention relates to the technical field of processing of high-voltage switch contact pieces, and discloses a processing technology of a high-voltage switch contact piece, which comprises the following steps: step A to step F. The high-voltage switch contact piece manufactured by the invention has good conductivity, corrosion resistance and high-temperature strength.
Description
Technical Field
The invention relates to the technical field of processing of a high-voltage switch contact piece, in particular to a processing technology of the high-voltage switch contact piece.
Background
The important components in the high-voltage switch when the high-voltage switch contacts are also one of the key devices related to the safe and stable operation of the power grid. An alloy is a substance with metallic characteristics, which is synthesized by two or more metals and metals or nonmetals through a certain method. Typically by melting to a homogeneous liquid and solidifying. The metal alloy material has a wide range of applications, and among them, copper alloy occupies a large proportion in the application of the metal alloy material. However, the high-voltage contact piece made of the existing alloy material has poor corrosion resistance and low high-temperature strength.
Disclosure of Invention
The invention mainly provides a processing technology of a high-voltage switch contact, which solves the problems that a high-voltage contact made of alloy materials in the prior art is poor in corrosion resistance and low in high-temperature strength.
In order to solve the technical problems, the invention adopts the following technical scheme:
a processing technology of a contact piece of a high-voltage switch,
step A: preparing a contact sheet raw material, wherein the contact sheet raw material comprises the following components: zn: 1.0% -1.8%, Mn: 1.0% -1.5%, Mg: 0.5% -1.0%, Al: 0.5% -1.5%, Sn: 6.0% -8.0%, P: 0.1% -0.2%, Cu: the balance;
and B: smelting the mixture into cast ingots according to the element proportion;
and C: slowly heating the ingot to 820-880 ℃, performing diffusion annealing on the ingot after heating, keeping the temperature at 550-650 ℃, rapidly heating the ingot to 720-780 ℃, performing cold rolling, and shearing to obtain a contact sheet rolled plate;
step D: polishing the surface of the contact sheet rolled plate;
step E: putting the contact sheet rolled plate subjected to surface polishing treatment into a corresponding forming machine for punch forming and shearing to obtain a contact sheet original piece;
step F: and electroplating the contact piece original piece to obtain the contact piece part.
In the high-voltage switch contact piece, Sn, P and Cu are adopted to be smelted to obtain an alloy material with high strength, good wear resistance and good corrosion resistance, Zn is added to improve the fatigue limit of the alloy, Mg is added to improve the tensile strength of the alloy, Mn is added to improve the corrosion resistance and improve the strength, and meanwhile, the Mg is matched for supplement reinforcement, and Al is matched with Mn to improve the strength and hardness of Cu.
Further, deburring is performed after shearing in the step C and the step E.
Further, when the contact piece original is subjected to electroplating treatment in the step F, the contact end of the contact piece original is plated with silver. The silver plating can improve the conductive contact resistance and has strong conductivity.
Further, in the step C, before cold rolling, preheating treatment is carried out on cold rolling equipment, wherein the preheating temperature is 50-100 ℃. The pretreatment can prevent the cracking caused by the temperature reduction of the surface of the material due to the over-low temperature of the cold rolling equipment.
Has the advantages that: in the invention, Sn, P and Cu are adopted to be smelted to obtain an alloy material with high strength, good wear resistance and good corrosion resistance, Zn is added to improve the fatigue limit of the alloy, Mg is added to improve the tensile strength of the alloy, Mn is added to improve the corrosion resistance and the strength, and meanwhile, the Mg is added to supplement and strengthen, and Al is added to match Mn to improve the strength and the hardness of Cu. The high-voltage switch contact piece manufactured by the invention has good conductivity, corrosion resistance and high-temperature strength.
Detailed Description
The technical scheme of the processing technology of the contact piece of the high-voltage switch related to the invention is further described in detail with reference to the embodiment.
The first embodiment is as follows:
a processing technology of a contact piece of a high-voltage switch,
step A: preparing a contact sheet raw material, wherein the contact sheet raw material comprises the following components: zn: 1.0% -1.8%, Mn: 1.0% -1.5%, Mg: 0.5% -1.0%, Al: 0.5% -1.5%, Sn: 6.0% -8.0%, P: 0.1% -0.2%, Cu: the balance;
and B: smelting the mixture into cast ingots according to the element proportion;
and C: slowly heating the ingot to 820-880 ℃, performing diffusion annealing on the ingot after heating, keeping the temperature at 550-650 ℃, rapidly heating the ingot to 720-780 ℃, performing cold rolling, and shearing to obtain a contact sheet rolled plate;
step D: polishing the surface of the contact sheet rolled plate;
step E: putting the contact sheet rolled plate subjected to surface polishing treatment into a corresponding forming machine for punch forming and shearing to obtain a contact sheet original piece;
step F: and electroplating the contact piece original piece to obtain the contact piece part.
And C, deburring is carried out after shearing in the step C and the step E.
And F, when the contact piece original piece is subjected to electroplating treatment, the contact end of the contact piece original piece is plated with silver.
And C, preheating cold rolling equipment before cold rolling, wherein the preheating temperature is 50-100 ℃.
In the invention, Sn, P and Cu are adopted to be smelted to obtain an alloy material with high strength, good wear resistance and good corrosion resistance, Zn is added to improve the fatigue limit of the alloy, Mg is added to improve the tensile strength of the alloy, Mn is added to improve the corrosion resistance and the strength, and meanwhile, the Mg is added to supplement and strengthen, and Al is added to match Mn to improve the strength and the hardness of Cu. The high-voltage switch contact piece manufactured by the invention has good conductivity, corrosion resistance and high-temperature strength.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A processing technology of a contact piece of a high-voltage switch is characterized by comprising the following steps:
step A: preparing a contact sheet raw material, wherein the contact sheet raw material comprises the following components: zn: 1.0% -1.8%, Mn: 1.0% -1.5%, Mg: 0.5% -1.0%, Al: 0.5% -1.5%, Sn: 6.0% -8.0%, P: 0.1% -0.2%, Cu: the balance;
and B: smelting the mixture into cast ingots according to the element proportion;
and C: slowly heating the ingot to 820-880 ℃, performing diffusion annealing on the ingot after heating, keeping the temperature at 550-650 ℃, rapidly heating the ingot to 720-780 ℃, performing cold rolling, and shearing to obtain a contact sheet rolled plate;
step D: polishing the surface of the contact sheet rolled plate;
step E: putting the contact sheet rolled plate subjected to surface polishing treatment into a corresponding forming machine for punch forming and shearing to obtain a contact sheet original piece;
step F: and electroplating the contact piece original piece to obtain the contact piece part.
2. The processing technology of the contact piece of the high-voltage switch, according to claim 1, is characterized in that: and C, deburring is carried out after shearing in the step C and the step E.
3. The processing technology of the contact piece of the high-voltage switch, according to claim 1, is characterized in that: and F, when the contact piece original piece is subjected to electroplating treatment, the contact end of the contact piece original piece is plated with silver.
4. The processing technology of the contact piece of the high-voltage switch, according to claim 1, is characterized in that: and C, preheating cold rolling equipment before cold rolling, wherein the preheating temperature is 50-100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522925.4A CN112593115A (en) | 2020-12-21 | 2020-12-21 | Processing technology of high-voltage switch contact piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522925.4A CN112593115A (en) | 2020-12-21 | 2020-12-21 | Processing technology of high-voltage switch contact piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112593115A true CN112593115A (en) | 2021-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011522925.4A Pending CN112593115A (en) | 2020-12-21 | 2020-12-21 | Processing technology of high-voltage switch contact piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN112593115A (en) |
Citations (9)
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| JPS49122420A (en) * | 1973-03-27 | 1974-11-22 | ||
| CN1448524A (en) * | 2002-03-29 | 2003-10-15 | 日矿金属株式会社 | Caro bronze strip having excellent pressure processability |
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| CN101146920A (en) * | 2005-03-24 | 2008-03-19 | 日矿金属株式会社 | Copper alloy for electronic material |
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| CN102892908A (en) * | 2010-05-14 | 2013-01-23 | 三菱综合材料株式会社 | Copper alloy for electronic device, method for producing copper alloy for electronic device, and copper alloy rolled material for electronic device |
| CN103060605A (en) * | 2013-01-16 | 2013-04-24 | 苏州金仓合金新材料有限公司 | Novel lead-free environmentally-friendly high-strength wearable copper-based alloy rod and preparation method thereof |
| CN108467954A (en) * | 2018-02-02 | 2018-08-31 | 陕西斯瑞新材料股份有限公司 | A kind of manufacturing method of disconnecting switch contact chromium-bronze material |
| CN111020282A (en) * | 2019-12-09 | 2020-04-17 | 苏州天兼新材料科技有限公司 | Novel copper-based alloy material for power equipment |
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Patent Citations (9)
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| JPS49122420A (en) * | 1973-03-27 | 1974-11-22 | ||
| CN1448524A (en) * | 2002-03-29 | 2003-10-15 | 日矿金属株式会社 | Caro bronze strip having excellent pressure processability |
| CN1458292A (en) * | 2002-05-14 | 2003-11-26 | 同和矿业株式会社 | Copper base alloy with improved punchin and impacting performance and its preparing method |
| CN101146920A (en) * | 2005-03-24 | 2008-03-19 | 日矿金属株式会社 | Copper alloy for electronic material |
| JP2009079270A (en) * | 2007-09-26 | 2009-04-16 | Dowa Metaltech Kk | Cu-sn-p-based copper alloy sheet material and its production method, and connector |
| CN102892908A (en) * | 2010-05-14 | 2013-01-23 | 三菱综合材料株式会社 | Copper alloy for electronic device, method for producing copper alloy for electronic device, and copper alloy rolled material for electronic device |
| CN103060605A (en) * | 2013-01-16 | 2013-04-24 | 苏州金仓合金新材料有限公司 | Novel lead-free environmentally-friendly high-strength wearable copper-based alloy rod and preparation method thereof |
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Application publication date: 20210402 |
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