CN107803633B - composite board for electrode and its making method - Google Patents
composite board for electrode and its making method Download PDFInfo
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- CN107803633B CN107803633B CN201711081983.6A CN201711081983A CN107803633B CN 107803633 B CN107803633 B CN 107803633B CN 201711081983 A CN201711081983 A CN 201711081983A CN 107803633 B CN107803633 B CN 107803633B
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- 239000002131 composite material Substances 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims description 20
- 239000000758 substrate Substances 0.000 claims abstract description 177
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 48
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 35
- 239000010937 tungsten Substances 0.000 claims abstract description 35
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 28
- 239000010962 carbon steel Substances 0.000 claims abstract description 28
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052737 gold Inorganic materials 0.000 claims abstract description 24
- 239000010931 gold Substances 0.000 claims abstract description 24
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 21
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 229910052709 silver Inorganic materials 0.000 claims abstract description 10
- 239000004332 silver Substances 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims description 57
- 238000003466 welding Methods 0.000 claims description 37
- 239000012535 impurity Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000009659 non-destructive testing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 10
- 239000007772 electrode material Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 241001391944 Commicarpus scandens Species 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a composite plate for an electrode and a manufacturing method thereof, wherein the composite plate comprises a -layer substrate, the -layer substrate is made of tungsten, gold or platinum as a main material, a second-layer substrate is made of copper or silver as a main material, and a third-layer substrate is made of carbon steel or titanium alloy as a main material, wherein the -layer substrate, the second-layer substrate and the third-layer substrate are overlapped and rolled into a composite plate, and the second-layer substrate is positioned between the -layer substrate and the third-layer substrate.
Description
Technical Field
The invention relates to the field of electrode materials, in particular to composite plates for electrodes and a manufacturing method thereof.
Background
With the rapid development of national economy and the continuous updating of electronic and electrical products, the requirements on the performance, shape and type of the electrode material are higher and higher. The electrode material is required to have high conductivity and low resistance, and its shape is also developed from the earliest point-like electrode, needle-like electrode, and rod-like electrode to the current plate-like electrode.
At present, the electrode materials are basically single homogeneous materials, but the existing single electrode material cannot meet the requirements of high conductivity, high strength and high toughness.
That is, the conventional plate-like electrode material has a technical problem that the requirements of high conductivity and high strength and toughness cannot be satisfied at the same time.
Disclosure of Invention
The invention provides composite plates for electrodes and a manufacturing method thereof, which solve the technical problem that the plate-shaped electrode material in the prior art can not meet the requirements of high conductivity and high strength and toughness.
, to solve the above technical problem, the embodiments of the present invention provide the following technical solutions:
A composite sheet for an electrode, comprising:
th layer of substrate, wherein the main material of the th layer of substrate is tungsten, gold or platinum;
the second layer of substrate is made of copper or silver as a main material;
the third layer of substrate is mainly made of carbon steel or titanium alloy;
wherein the th layer of substrate, the second layer of substrate and the third layer of substrate are rolled into a composite board in an overlapping way, wherein the second layer of substrate is positioned between the th layer of substrate and the third layer of substrate.
Optionally, the weight percentage of tungsten in the th layer substrate is greater than or equal to 99.93%, the balance is impurities, the yield strength range of the th layer substrate before rolling is 400-600 MPa, the tensile strength range of the th layer substrate is 600-800 MPa, the elongation percentage range of the th layer substrate is 5-8%, and the thickness of the th layer substrate before rolling is less than or equal to 2.0 mm.
Optionally, the weight percentage of copper in the second substrate layer is greater than or equal to 99.61%, and the balance is impurities; the yield strength range of the second layer of base plate before rolling is as follows: 200-450 MPa, wherein the tensile strength range of the second layer substrate is 400-600 MPa, and the elongation percentage range of the second layer substrate is 10-15%; the thickness of the second layer of substrate before rolling is less than or equal to 5.0 mm.
Optionally, the third layer of the substrate comprises, by weight, 0.02-0.07% of C, less than or equal to 0.03% of Si, 1.90-2.50% of Mn, less than or equal to 0.015% of P, less than or equal to 0.008% of S, 0.080-0.090% of Nb, 0.17-0.25% of Ti, 0.08-0.10% of Als, 0.006-0.010% of N, and the balance of impurities; the yield strength of the third-layer substrate before rolling is more than or equal to 800MPa, the tensile strength of the third-layer substrate is more than or equal to 900MPa, and the elongation of the third-layer substrate is more than or equal to 15%; the thickness of the third layer of the substrate before rolling is less than or equal to 10.0 mm.
Optionally, the thickness of the rolled composite plate finished product is less than or equal to 5.0 mm.
In another aspect of , there is provided a method of manufacturing composite plates for electrodes, comprising:
th layer of base plate, a second layer of base plate and a third layer of base plate are overlapped, wherein the main material of the th layer of base plate is tungsten, gold or platinum, the main material of the second layer of base plate is copper or silver, the main material of the third layer of base plate is carbon steel or titanium alloy, and the second layer of base plate is positioned between the th layer of base plate and the third layer of base plate;
spot welding the edge joint of the th layer of substrate and the second layer of substrate, and spot welding the edge joint of the second layer of substrate and the third layer of substrate;
heating the th layer substrate, the second layer substrate and the third layer substrate after spot welding;
rolling the th layer of substrate, the second layer of substrate and the third layer of substrate to manufacture the composite board.
Optionally, the spot welding processing equipment is a laser welder; the welding parameter range of the spot welding is as follows: the welding energy is 1.8-3.8 kW, the welding speed is 2.5-3.5 m/min, and the flow of the protective gas is 30-40L/min.
Optionally, the tapping temperature of the heating is 800-900 DEG C
Optionally, the rolling is repeated rolling for multiple passes; the thickness of the composite plate obtained by rolling is less than or equal to 5.0mm, and the finishing temperature is 760-800 ℃; further comprising, after said rolling: laminar flow is used to rapidly cool the composite panel.
Optionally, after the th layer of substrate, the second layer of substrate and the third layer of substrate are rolled, the method further comprises the steps of cutting off burrs at the edges of the composite board, performing nondestructive testing on the composite board, and performing mechanical property testing on the composite board.
or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the composite plate and the manufacturing method, the tungsten (gold and platinum) plate, the copper (silver) plate and the carbon steel (titanium alloy) plate are adopted for composite rolling, the defects that the single tungsten (gold and platinum) electrode is insufficient in toughness and easy to break and the single copper (silver) electrode is insufficient in strength are overcome, the carbon steel (titanium alloy) plate is used for improving the strength and the toughness, meanwhile, the copper (silver) is adopted as a transition metal layer between the tungsten (gold and platinum) and the carbon steel (titanium alloy), the problem that the tungsten (gold and platinum) and the carbon steel (titanium alloy) are difficult to combine is effectively solved, the advantage of high conductivity of the tungsten (gold and platinum) is obtained, and the composite plate also has high strength and high toughness.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a block diagram of a composite panel in an embodiment of the present application;
FIG. 2 is a flow chart of a method of making a composite panel according to an embodiment of the present application;
FIG. 3 is a schematic view of spot welding in an embodiment of the present application;
fig. 4 is a schematic view of rolling in the example of the present application.
Detailed Description
The embodiment of the application provides composite plates for electrodes and a manufacturing method thereof, solves the technical problem that the plate-shaped electrode material in the prior art cannot meet the requirements of high conductivity and high strength and toughness at the same time, and provides composite plates for electrodes, which have the advantages of high conductivity and high strength and toughness.
In order to solve the above technical problem, the general idea of the technical solution provided in the embodiments of the present application is as follows:
the present application provides composite sheets for electrodes, comprising:
th layer of substrate, wherein the main material of the th layer of substrate is tungsten, gold or platinum;
the second layer of substrate is made of copper or silver as a main material;
the third layer of substrate is mainly made of carbon steel or titanium alloy;
wherein the th layer of substrate, the second layer of substrate and the third layer of substrate are rolled into a composite board in an overlapping way, wherein the second layer of substrate is positioned between the th layer of substrate and the third layer of substrate.
According to the composite plate for the electrode and the manufacturing method thereof, the tungsten (gold and platinum) plate, the copper (silver) plate and the carbon steel (titanium alloy) plate are adopted for composite rolling, so that the defects that the single tungsten (gold and platinum) electrode is insufficient in toughness and easy to break and the single copper (silver) electrode is insufficient in strength are overcome.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to specific embodiments, and it should be understood that the specific features in the examples and the embodiments of the present invention are detailed descriptions of the technical solutions of the present application, but not limitations of the technical solutions of the present application, and the technical features in the examples and the embodiments of the present application may be combined with each other without conflict.
Example
In this embodiment, there are provided kinds of composite sheets for electrodes, as shown in fig. 1, including:
th layer of substrate 1, wherein the main material of the th layer of substrate 1 is tungsten, gold or platinum;
the second layer of substrate 2, the main material of the said second layer of substrate 2 is copper or silver;
the third layer of substrate 3, the main material of the third layer of substrate 3 is carbon steel or titanium alloy;
wherein the th layer substrate 1, the second layer substrate 2 and the third layer substrate 3 are rolled into a composite board, wherein the second layer substrate 2 is positioned between the th layer substrate 1 and the third layer substrate 3.
The structure and materials of the composite plate will be described in detail below with reference to fig. 1.
First, the th layer substrate 1 is introduced, and the main material of the th layer substrate 1 may be tungsten, gold, or platinum.
Taking tungsten as an example, the th-layer substrate 1 is a tungsten plate, the th-layer substrate 1 contains more than or equal to 99.93 wt% of tungsten and the balance of impurities, before rolling, the yield strength of the th-layer substrate 1 before rolling is 400-600 MPa, the tensile strength of the th-layer substrate 1 is 600-800 MPa, the elongation of the th-layer substrate is 5-8%, and the thickness of the th-layer substrate before rolling is less than or equal to 2.0 mm.
For example, as shown in table 1, the chemical composition of the tungsten plate may be:
| examples | Weight percent of tungsten | Weight percent of |
| 1 | 99.95 | 0.05 |
| 2 | 99.94 | 0.06 |
| 3 | 100.00 | 0 |
| 4 | 99.93 | 0.07 |
| 5 | 99.98 | 0.02 |
| 6 | 99.96 | 0.04 |
TABLE 1 tungsten plate chemistry for each example
For example, as shown in table 2, the mechanical properties of the tungsten plate before rolling may be:
| examples | Yield strength ReL (MPa) | Tensile Strength Rm (MPa) | Elongation A (%) |
| 1 | 565 | 685 | 6 |
| 2 | 400 | 795 | 5 |
| 3 | 505 | 600 | 7 |
| 4 | 455 | 715 | 8 |
| 5 | 581 | 800 | 7 |
| 6 | 600 | 665 | 6 |
TABLE 2 mechanical Properties of tungsten plates of examples
Next, the second-layer substrate 2 will be described, and the main material of the second-layer substrate 2 may be copper or silver.
Taking copper as an example, the second-layer substrate 2 is a copper plate, the weight percentage of copper in the second-layer substrate 2 is greater than or equal to 99.61%, and the balance is impurities; the yield strength range of the second layer substrate 2 before rolling is as follows: 200-450 MPa, wherein the tensile strength range of the second-layer substrate 2 is 400-600 MPa, and the elongation percentage range of the second-layer substrate 2 is 10-15%; the thickness of the second layer substrate 2 before rolling is less than or equal to 5.0 mm.
For example, as shown in table 3, the chemical composition of the copper plate may be:
| examples | Weight percent of copper | Weight percent of |
| 1 | 99.75 | 0.25 |
| 2 | 99.84 | 0.16 |
| 3 | 99.95 | 0.05 |
| 4 | 10.00 | 0 |
| 5 | 99.61 | 0.39 |
| 6 | 99.69 | 0.31 |
Table 3 copper plate chemical composition of each example
For example, as shown in table 4, the mechanical properties of the copper plate before rolling may be:
| examples | Yield strength ReL (MPa) | Tensile Strength Rm (MPa) | Elongation A (%) |
| 1 | 245 | 450 | 12 |
| 2 | 415 | 400 | 14 |
| 3 | 200 | 500 | 15 |
| 4 | 355 | 570 | 11 |
| 5 | 398 | 600 | 10 |
| 6 | 450 | 550 | 13 |
TABLE 4 mechanical Properties of copper plate of examples
Next, the third-layer substrate 3 is described, and the main material of the third-layer substrate 3 may be carbon steel or titanium alloy.
Taking carbon steel as an example, the third substrate 3 is a carbon steel plate, and the third substrate 3 comprises, by weight, 0.02-0.07% of C, no more than 0.03% of Si, 1.90-2.50% of Mn, no more than 0.015% of P, no more than 0.008% of S, 0.080-0.090% of Nb, 0.17-0.25% of Ti, 0.08-0.10% of Als, 0.006-0.010% of N, and the balance of impurities; the yield strength of the third substrate 3 before rolling is more than or equal to 800MPa, the tensile strength of the third substrate 3 is more than or equal to 900MPa, and the elongation of the third substrate 3 is more than or equal to 15%; the thickness of the third layer of the substrate 3 before rolling is less than or equal to 10.0 mm.
For example, as shown in table 5, the chemical components of the carbon steel plate may be in the following weight percentages:
| composition (I) | C | Mn | Si | P | S | Als | | Ti | N | |
| 1 | 0.03 | 1.90 | 0.03 | 0.009 | 0.007 | 0.08 | 0.080 | 0.18 | 0.007 | |
| 2 | 0.06 | 2.13 | 0.02 | 0.004 | 0.004 | 0.10 | 0.084 | 0.25 | 0.009 | |
| 3 | 0.07 | 2.41 | 0.01 | 0.007 | 0.003 | 0.09 | 0.090 | 0.17 | 0.006 | |
| 4 | 0.04 | 2.25 | 0.03 | 0.001 | 0.005 | 0.08 | 0.086 | 0.21 | 0.008 | |
| 5 | 0.02 | 2.38 | 0.01 | 0.012 | 0.001 | 0.10 | 0.082 | 0.23 | 0.009 | |
| 6 | 0.06 | 2.50 | 0.02 | 0.015 | 0.008 | 0.09 | 0.088 | 0.19 | 0.010 |
TABLE 5 chemical composition of carbon steel sheet of each example
For example, as shown in table 6, the mechanical properties of the carbon steel sheet before rolling may be:
TABLE 6 mechanical Properties of carbon Steel sheets of examples
The th layer of base plate 1, the second layer of base plate 2 and the third layer of base plate 3 are rolled into a composite plate in an overlapping mode according to the positions shown in the figure 1, the second layer of base plate 2 is located between the th layer of base plate 1 and the third layer of base plate 3, the thickness of the rolled composite plate finished product is less than or equal to 5.0mm, after the composite plate is sampled, mechanical property inspection is carried out according to the national standard GB/T6396-2008, the mechanical property reaches that the yield strength ReL is more than or equal to 700MPa, the tensile strength Rm is more than or equal to 800MPa, the elongation A is more than or equal to 12%, and the normal-temperature impact property Kv2 is more than or.
For example, taking the th layer substrate 1 as a tungsten plate, the second layer substrate 2 as a copper plate, and the third layer substrate 3 as a carbon steel plate as an example, as shown in table 7, the mechanical properties of the composite plate after rolling may be:
TABLE 7 mechanical Properties of W-Cu-C steel clad plates of examples
Specifically, the composite rolling is carried out by adopting a tungsten (gold and platinum) plate, a copper (silver) plate and a carbon steel (titanium alloy) plate, so that the defects that a single tungsten (gold and platinum) electrode is insufficient in toughness and easy to break and a single copper (silver) electrode is insufficient in strength are avoided.
Based on the same concept of , the present application also provides a method for preparing the composite board of the embodiment , which is detailed in the specification
Example two.
Example two
In this embodiment, there are provided methods for manufacturing a composite plate for an electrode, as shown in fig. 2, including:
step S201, overlapping th-layer substrates, second-layer substrates and third-layer substrates, wherein the th-layer substrates are made of tungsten, gold or platinum, the second-layer substrates are made of copper or silver, the third-layer substrates are made of carbon steel or titanium alloy, and the second-layer substrates are located between the th-layer substrates and the third-layer substrates;
step S202, spot welding is carried out on the joint of the edges of the th layer of substrate and the second layer of substrate, and spot welding is carried out on the joint of the edges of the second layer of substrate and the third layer of substrate;
step S203, heating the th layer of base plate, the second layer of base plate and the third layer of base plate after spot welding;
and step S204, rolling the th layer of base plate, the second layer of base plate and the third layer of base plate to manufacture the composite plate.
The following describes in detail the implementation steps of the method provided in this embodiment with reference to fig. 1 to 4.
Firstly, step S201 is executed to superpose th layer of substrate 1, second layer of substrate 2 and third layer of substrate 3, wherein the th layer of substrate is made of tungsten, gold or platinum, the second layer of substrate is made of copper or silver, and the third layer of substrate is made of carbon steel or titanium alloy, wherein the second layer of substrate is located between the th layer of substrate and the third layer of substrate.
In the embodiment , the material and properties of the th layer substrate 1, the second layer substrate 2 and the third layer substrate 3 have been described in detail, and for the sake of brevity of the description, the description will not be repeated here.
The specific overlapping manner is shown in fig. 1, and of course, the positions of the th layer substrate 1 and the third layer substrate 3 may be exchanged during the specific implementation process.
In the specific implementation process, before rolling and after rolling, the second layer substrate 2 can be completely or partially overlapped and covered by the th layer substrate 1, and the second layer substrate 2 can be completely or partially overlapped and covered by the third layer substrate 3.
Then, step S202 is executed to perform spot welding on the edge joints of the th layer substrate 1 and the second layer substrate 2, and perform spot welding on the edge joints of the second layer substrate 2 and the third layer substrate 3.
Specifically, the spot welding position 301 is shown in fig. 3, and the spot welding processing equipment is a laser welding machine; the welding parameter range of the spot welding is as follows: the welding energy is 1.8-3.8 kW, the welding speed is 2.5-3.5 m/min, and the flow of the protective gas is 30-40L/min. The composite rolling technology adopts a laser spot welding technology, and compared with the traditional welding mode, the production efficiency is greatly improved, and the production cost is reduced.
For example, as shown in table 8, the welding process parameters of the spot welding may be:
TABLE 8 welding Process parameters for the examples
Next, step S203 is performed to heat the th layer substrate, the second layer substrate, and the third layer substrate after spot welding.
Specifically, the th layer substrate, the second layer substrate and the third layer substrate subjected to laser spot welding are heated, and the tapping temperature of the heating is 800 to 900 ℃.
Next, step S204 is performed to roll the th layer of substrate, the second layer of substrate and the third layer of substrate to form the composite board.
As shown in fig. 4, the specific rolling is performed by extrusion rolling using a roll 401. In order to form a composite plate with uniform thickness, the rolling is repeated in multiple passes. And the thickness of the composite plate finished product obtained by rolling is less than or equal to 5.0 mm. The final rolling temperature of the rolling is 760-800 ℃.
Optionally, the rolled composite plate is rapidly cooled by laminar flow, and the final cooling temperature is 450-500 ℃.
For example, as shown in table 9, the process parameters of heating and rolling may be:
TABLE 9 reheating and Rolling Process parameters for the examples
In the embodiment of the present application, after the composite plate is obtained by rolling in step S204, the following steps may be further performed: .
1) And cutting off burrs at the edge of the composite plate to improve the quality of a finished product. Optionally, the cutting allowance for cutting off the burrs is 5-10 mm;
2) performing nondestructive testing on the composite plate, specifically performing flaw detection on the rolled composite plate by using ultrasonic waves, returning to the furnace for rolling again if a defect is found, and continuing the subsequent flow if no defect exists;
3) the mechanical property of the composite board is detected, and after the composite board is sampled, the mechanical property is detected according to the national standard GB/T6396-2008, and the mechanical property requirement reaches: the yield strength ReL is more than or equal to 700MPa, the tensile strength Rm is more than or equal to 800MPa, the elongation A is more than or equal to 12 percent, and the normal-temperature impact performance Kv2 is more than or equal to 180J.
4) And after the steel plates are qualified, the steel plates are packaged and delivered in the circumferential direction and the radial direction by using the binding belts.
In a specific implementation process, the sequence among the steps 1), 2) and 3) is not limited, and can be set according to needs.
In view of the detailed description of the performance parameters of the finished composite panel prepared in example , the description is not repeated here for the sake of brevity.
The composite plate prepared in the second embodiment of the application has good electrical conductivity, high strength and high toughness, and is not easy to bend and deform, so that the composite plate can be suitable for manufacturing plate-shaped electrodes with large external dimensions.
Since the method described in the second embodiment of the present invention is a method for preparing the composite board of embodiment of the present invention, a person skilled in the art can understand the preparation method of the composite board based on the composite board described in embodiment of the present invention, and thus the description thereof is omitted here.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the composite rolling method has the advantages that the tungsten (gold and platinum) plate, the copper (silver) plate and the carbon steel (titanium alloy) plate are adopted for composite rolling, the defects that a single tungsten (gold and platinum) electrode is insufficient in toughness and easy to break and a single copper (silver) electrode is insufficient in strength are overcome, the carbon steel (titanium alloy) plate is used for improving the strength and the toughness, and meanwhile, the copper (silver) is used as a transition metal layer between the tungsten (gold and platinum) and the carbon steel (titanium alloy) to effectively solve the problem that the tungsten (gold and platinum) and the carbon steel (titanium alloy) are difficult to combine, so that the high-conductivity advantage of the tungsten (gold and platinum) is obtained, and the high-strength and high-toughness are also achieved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1, A composite sheet for an electrode, comprising:
the th layer of substrate, the main material of the th layer of substrate is tungsten, gold or platinum, the thickness of the th layer of substrate before rolling is less than or equal to 2.0 mm;
the second layer of substrate is made of copper or silver as a main material; the thickness of the second layer of substrate before rolling is less than or equal to 5.0 mm;
the third layer of substrate is mainly made of carbon steel or titanium alloy; the thickness of the third layer of the substrate before rolling is less than or equal to 10.0 mm;
the th layer of base plate, the second layer of base plate and the third layer of base plate are overlapped and rolled into a composite plate, wherein the second layer of base plate is positioned between the th layer of base plate and the third layer of base plate, and the thickness of the rolled composite plate finished product is less than or equal to 5.0 mm.
2. The composite panel of claim 1, wherein:
the weight percentage of tungsten in the th layer of substrate is more than or equal to 99.93%, and the balance is impurities;
the yield strength of the th layer of base plate before rolling ranges from 400 MPa to 600MPa, the tensile strength of the th layer of base plate ranges from 600MPa to 800MPa, and the elongation of the th layer of base plate ranges from 5% to 8%.
3. The composite panel of claim 1, wherein:
the weight percentage of copper in the second layer of substrate is more than or equal to 99.61%, and the balance is impurities;
the yield strength range of the second layer of base plate before rolling is as follows: 200-450 MPa, the tensile strength range of the second layer substrate is 400-600 MPa, and the elongation percentage range of the second layer substrate is 10-15%.
4. The composite panel of claim 1, wherein:
the third layer of substrate is made of carbon steel, and comprises 0.02-0.07% of C, less than or equal to 0.03% of Si, 1.90-2.50% of Mn, less than or equal to 0.015% of P, less than or equal to 0.008% of S, 0.080-0.090% of Nb, 0.17-0.25% of Ti, 0.08-0.10% of Als, 0.006-0.010% of N and the balance of impurities in percentage by weight;
the yield strength of the third-layer substrate before rolling is more than or equal to 800MPa, the tensile strength of the third-layer substrate is more than or equal to 900MPa, and the elongation of the third-layer substrate is more than or equal to 15%.
5, A method for manufacturing a composite plate for an electrode, comprising:
layers of substrates, a second layer of substrates and a third layer of substrates are placed in an overlapping mode, wherein the layer of substrates are made of tungsten, gold or platinum, the second layer of substrates are made of copper or silver, the third layer of substrates are made of carbon steel or titanium alloy, the second layer of substrates are located between the layer of substrates and the third layer of substrates, the thickness of the layer of substrates before rolling is smaller than or equal to 2.0mm, the thickness of the second layer of substrates before rolling is smaller than or equal to 5.0mm, the thickness of the third layer of substrates before rolling is smaller than or equal to 10.0mm, the edge joint of the layer of substrates and the second layer of substrates is subjected to spot welding, and the edge joint of the second layer of substrates and the third layer of substrates is subjected to spot welding;
heating the th layer substrate, the second layer substrate and the third layer substrate after spot welding;
and rolling the th layer of base plate, the second layer of base plate and the third layer of base plate to manufacture the composite plate, wherein the thickness of the rolled composite plate finished product is less than or equal to 5.0 mm.
6. The method of claim 5, wherein:
the spot welding processing equipment is a laser welding machine;
the welding parameter range of the spot welding is as follows: the welding energy is 1.8-3.8 kW, the welding speed is 2.5-3.5 m/min, and the flow of the protective gas is 30-40L/min.
7. The method of claim 5, wherein:
the tapping temperature of the heating is 800-900 ℃.
8. The method of claim 5, wherein:
the rolling is repeated rolling of multiple passes;
the thickness of the composite plate obtained by rolling is less than or equal to 5.0mm, and the finishing temperature is 760-800 ℃;
further comprising, after said rolling: laminar flow is used to rapidly cool the composite panel.
9. The method of claim 5, further comprising, after said rolling said th layer substrate, said second layer substrate, and said third layer substrate:
cutting off burrs at the edge of the composite board;
carrying out nondestructive testing on the composite board;
and detecting the mechanical property of the composite board.
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| CN111085545B (en) * | 2019-12-12 | 2021-05-07 | 江苏大学 | High-performance ultrafine-grained hot-rolled TRIP steel material and preparation method thereof |
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| CN2789350Y (en) * | 2005-03-14 | 2006-06-21 | 蒋彩峰 | Metal composite board |
| CN202025540U (en) * | 2010-09-16 | 2011-11-02 | 平顶山市东方碳素有限公司 | Composite plate electrode |
| CN103617897A (en) * | 2013-09-29 | 2014-03-05 | 魏玲 | Novel three-layer silver / copper bimetallic composite electric contact material |
| CN104786581B (en) * | 2015-04-13 | 2017-10-31 | 宝山钢铁股份有限公司 | A kind of multilayer stainless compound steel plate and its manufacture method |
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