CN115478190A - Copper alloy for thin strip chilling crystallizer, preparation method thereof and thin strip chilling crystallizer - Google Patents
Copper alloy for thin strip chilling crystallizer, preparation method thereof and thin strip chilling crystallizer Download PDFInfo
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- CN115478190A CN115478190A CN202211244882.7A CN202211244882A CN115478190A CN 115478190 A CN115478190 A CN 115478190A CN 202211244882 A CN202211244882 A CN 202211244882A CN 115478190 A CN115478190 A CN 115478190A
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- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 30
- 239000000956 alloy Substances 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 15
- 238000005242 forging Methods 0.000 claims description 43
- 238000010438 heat treatment Methods 0.000 claims description 32
- 230000032683 aging Effects 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 28
- 239000006104 solid solution Substances 0.000 claims description 25
- 238000003723 Smelting Methods 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 16
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 claims description 13
- 229910017052 cobalt Inorganic materials 0.000 claims description 9
- 239000010941 cobalt Substances 0.000 claims description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 2
- 238000005275 alloying Methods 0.000 claims 1
- 229910052790 beryllium Inorganic materials 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 230000006698 induction Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 229910052726 zirconium Inorganic materials 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- OWXLRKWPEIAGAT-UHFFFAOYSA-N [Mg].[Cu] Chemical compound [Mg].[Cu] OWXLRKWPEIAGAT-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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 discloses a copper alloy for a thin strip chilling crystallizer, which comprises the following components in percentage by weight: 1.4 to 1.75 percent of Be, 0.2 to 1.0 percent of Co plus Ni, 0.05 to 0.3 percent of trace alloy element and the balance of Cu. The copper alloy with the beta phase not enriched and the fine beta phase distributed more dispersedly is prepared by the invention, and the service life of the thin strip chilling crystallizer prepared by the copper alloy is long. The invention also provides a preparation method of the copper alloy for the thin strip chilling crystallizer and the thin strip chilling crystallizer.
Description
Technical Field
The invention relates to the field of alloy materials, in particular to a copper alloy for a thin strip chilling crystallizer, a preparation method thereof and the thin strip chilling crystallizer.
Background
Beryllium copper alloy is used as a continuous quenching medium, is widely applied to the fields of twin-roll thin-strip continuous casting, aluminum alloy casting and rolling, nanocrystalline melt-spun, amorphous melt-spun and the like, has high hardness, mechanical property, fatigue strength, elastic limit, wear resistance, corrosion resistance, high and low temperature resistance and no magnetism, and can meet the requirements of electric conduction and heat conduction. However, the beryllium-copper alloy for the traditional thin strip chilling crystallizer is CuBe25 or C17200 alloy, and the Be content is 1.8-2.0%. When the content of Be is too high, a hard and brittle β phase is easily generated in a primary solidification process due to a large ingot size during casting, and β phase segregation may occur. The segregated beta phases cannot be completely crushed and uniformly distributed in the subsequent forging and heat treatment processes, so that the enriched beta phases fall off to form pit defects in the strip making process of the crystallizer to influence the normal production of strips; in addition, in the forming processing and heat treatment processes of high beryllium copper, the grain size is not easy to control, the condition of coarse grains or uneven grains is easy to generate, and the service life of the crystallizer is seriously influenced.
Disclosure of Invention
The invention aims to solve the technical problems of beta phase enrichment and limited service life of a thin strip chilling crystallizer in the prior art. The invention provides a copper alloy for a thin strip chilling crystallizer, a preparation method thereof and the thin strip chilling crystallizer, which can provide a copper alloy with a beta phase which is not enriched and is distributed with a more dispersed fine beta phase and has long service life.
In order to solve the technical problem, the embodiment of the invention discloses a copper alloy for a thin strip chilling crystallizer, which comprises the following components in percentage by weight: be 1.4-1.75%, co + Ni 0.2-1.0%, trace alloy element 0.05-0.3%, and Cu in balance.
According to another specific embodiment, the invention discloses a copper alloy for a thin strip chilling crystallizer, and the trace alloy element is one or more of Al, si, fe, zr, zn, mg and Ti.
According to another embodiment of the invention, the embodiment of the invention discloses a copper alloy for a thin strip chilling crystallizer, and the content of trace alloy elements is 0.05-0.3%.
According to another embodiment of the present invention, there is disclosed a copper alloy for a thin strip chill crystallizer, wherein the ratio of the weight percentages of Co to Ni is 4 to 5.
The embodiment of the invention also discloses a preparation method of the copper alloy for the thin strip chilling crystallizer, which comprises the following steps:
(1) Smelting: adding electrolytic copper, beryllium copper alloy, metal nickel, metal cobalt and trace alloy elements according to the weight percentage, smelting, and casting in vacuum to obtain an alloy copper ingot;
(2) Forging: forging the alloy copper ingot obtained in the step (1) to obtain a blank;
(3) Solid solution: carrying out heating solution treatment on the blank obtained in the step (2), and then rapidly cooling by water
(4) Aging treatment: and (4) carrying out aging treatment on the blank subjected to the solution treatment in the step (3).
According to another specific embodiment of the invention, the embodiment of the invention discloses a preparation method of the copper alloy for the thin strip chilling crystallizer, in the step (1), the smelting process condition is that the temperature is 1200-1400 ℃, and the smelting time is 5-60 minutes.
According to another embodiment of the invention, the embodiment of the invention discloses a preparation method of the copper alloy for the thin strip chilling crystallizer, and in the step (2), the forging temperature is 600-850 ℃.
According to another embodiment of the invention, the embodiment of the invention discloses a preparation method of the copper alloy for the thin strip chilling crystallizer, in the step (3), the solid solution process condition is that the temperature is 700-800 ℃, and the heating time is 1-8 hours.
According to another embodiment of the invention, the embodiment of the invention discloses a preparation method of the copper alloy for the thin strip chilling crystallizer, and in the step (4), the aging treatment process condition is that the temperature is controlled to be 250-350 ℃ for aging treatment for 1-10 hours.
The embodiment of the invention also discloses a thin strip chilling crystallizer which is made of the copper alloy for the thin strip chilling crystallizer.
Compared with the prior art, the invention has the following beneficial effects:
the production process of vacuum melting ingot casting, forging forming, solution heat treatment and aging heat treatment is adopted, and beta phase segregation in the melting process is reduced by reducing the content of the traditional beryllium copper alloy Be, so that the hard and brittle phases in the crystallizer structure are reduced, and the advantage of reducing the content of Be can further improve the conductivity and improve the chilling effect; the copper alloy for the strip chilling crystallizer controls the content of alloy components, can fully inhibit the growth of crystal grains in the hot processing and heat treatment processes by adding trace elements such as Al, si, fe, zr, zn, mg, ti and the like so as to refine the crystal grains of the alloy, has more dispersed and fine beta phase distribution, and improves the fatigue life. Through experimental data analysis, the percentage content ratio of Co to Ni is in the range of 4-5, and the produced strip has the best comprehensive performance; the copper alloy prepared by the invention has no enriched hard and brittle beta phase in the structure, the beta phase is more dispersed and fine in distribution, the internal structure of the material is uniform, the thermal fatigue resistance is excellent, and the service life is long.
Drawings
FIG. 1 shows a metallographic picture of a copper alloy according to example 1 of the present invention;
FIG. 2 shows a metallographic picture of a copper alloy according to example 2 of the present invention;
FIG. 3 shows a metallographic picture of a copper alloy according to example 3 of the present invention;
FIG. 4 shows a metallographic picture of a copper alloy according to example 4 of the present invention;
FIG. 5 shows a metallographic picture of a copper alloy according to example 5 of the present invention;
FIG. 6 shows a metallographic picture of a copper alloy of comparative example 1 of the present invention;
fig. 7 shows a metallographic picture of a copper alloy according to comparative example 2 of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention has been described in connection with the embodiments for the purpose of covering alternatives or modifications as may be extended based on the claims of the invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
The composition of the copper alloy of this example was 1.70% Be, 0.25% Co, 0.05% Ni, 0.11% Zr, and the balance Cu.
The preparation process of the copper alloy of the embodiment comprises the following steps:
(1) Smelting: electrolytic copper, beryllium copper alloy, metal nickel, metal cobalt and sponge zirconium are added into a vacuum induction furnace for smelting, the temperature is raised to 1350 ℃ after melting down for 10 minutes, and the ingot is cast in vacuum;
(2) Forging: forging the copper ingot prepared in the step (1), wherein the forging process conditions are as follows: heating to 780 ℃ to start forging, wherein the finish forging temperature is 650 ℃ to obtain the required shape and size;
(3) Solid solution: carrying out solid solution treatment on the blank obtained in the step (2), wherein the solid solution process conditions are as follows: heating to 790 ℃, preserving the heat for 2 hours and immediately cooling by water;
(4) Aging treatment: and (4) performing aging treatment on the blank obtained in the step (3), wherein the aging treatment process conditions are as follows: heating to 325 ℃, preserving heat for 3 hours, and then cooling in air.
As can be seen from figure 1, the copper alloy prepared by the preparation process has no enrichment, is dispersed and fine in distribution, has good online service life and has 1210 tons of total steel excess.
Example 2
The composition of the copper alloy of this example was 1.5% Be, 0.24% Co, 0.05% Ni, 0.11% Ti, and the balance Cu.
The preparation process of the copper alloy of the embodiment comprises the following steps:
(1) Smelting: electrolytic copper, beryllium copper alloy, metallic nickel, metallic cobalt and sponge titanium are added into a vacuum induction furnace for smelting, the temperature is raised to 1350 ℃ after melting down for 10 minutes, and cast ingots in vacuum;
(2) Forging: forging the copper ingot prepared in the step (1), wherein the forging process conditions are as follows: heating to 780 ℃ to start forging, and obtaining the required shape and size at the final forging temperature of 650 ℃;
(3) Solid solution: carrying out solid solution treatment on the blank obtained in the step (2), wherein the solid solution process conditions are as follows: heating to 790 ℃, preserving heat for 2 hours and immediately cooling by water;
(4) And (3) aging treatment: and (4) carrying out aging treatment on the blank obtained in the step (3), wherein the aging process conditions are as follows: heating to 325 ℃, preserving heat for 3 hours, and then cooling in air.
As can be seen from figure 2, the copper alloy prepared by the preparation process has no enrichment, is dispersed and fine in distribution, has good online service life and has a total steel excess of 1030 tons.
Example 3
The composition of the copper alloy of this example was 1.75% Be, 0.3% Co, 0.07% Ni, 0.2% Mg, and the balance Cu.
The preparation process of the copper alloy of the embodiment comprises the following steps:
(1) Smelting: electrolytic copper, beryllium copper alloy, metallic nickel, metallic cobalt and copper magnesium alloy are added into a vacuum induction furnace for smelting, the temperature is raised to 1350 ℃ after melting down for 10 minutes, and cast ingots in vacuum;
(2) Forging: forging the copper ingot prepared in the step (1), wherein the forging process conditions are as follows: heating to 780 ℃ to start forging, wherein the finish forging temperature is 650 ℃ to obtain the required shape and size;
(3) Solid solution: carrying out solid solution treatment on the blank obtained in the step (2), wherein the solid solution process conditions are as follows: heating to 790 ℃, preserving the heat for 2 hours and immediately cooling by water;
(4) Aging treatment: and (4) carrying out aging treatment on the blank obtained in the step (3), wherein the aging process conditions are as follows: heating to 325 ℃, preserving heat for 3 hours, and then cooling in air.
As can be seen from figure 3, the copper alloy prepared by the preparation process has no enrichment, is dispersed and fine in distribution, has good online service life and has the total steel excess of 1300 tons.
Example 4
The composition of the copper alloy of this example was 1.65% Be, 0.28% Co, 0.07% Ni, 0.08% Si, 0.1% Zr, and the balance Cu.
The preparation process of the copper alloy of the embodiment comprises the following steps:
(1) Smelting: electrolytic copper, beryllium copper alloy, metallic nickel, metallic cobalt, sponge zirconium and crystalline silicon are added into a vacuum induction furnace for smelting, the temperature is raised to 1350 ℃ after melting down for 10 minutes, and the ingot is cast in vacuum;
(2) Forging: forging the copper ingot prepared in the step (1), wherein the forging process conditions are as follows: heating to 780 ℃ to start forging, wherein the finish forging temperature is 650 ℃ to obtain the required shape and size;
(3) Solid solution: carrying out solid solution treatment on the blank obtained in the step (2), wherein the solid solution process conditions are as follows: heating to 790 ℃, preserving heat for 2 hours and immediately cooling by water;
(4) And (3) aging treatment: and (4) carrying out aging treatment on the blank obtained in the step (3), wherein the aging process conditions are as follows: heating to 325 ℃, preserving heat for 3 hours, and then cooling in air.
As can be seen from FIG. 4, the copper alloy prepared by the preparation process has no enrichment, is dispersed and fine in distribution, has good online service life and has a total steel excess of 1050 tons.
Example 5
The composition of the copper alloy of this example was 1.74% Be, 0.28% Co, 0.07% Ni, 0.05% Al, 0.13% Ti, and the balance Cu.
The preparation process of the copper alloy of the embodiment comprises the following steps:
(1) Smelting: adding electrolytic copper, beryllium copper alloy, metallic nickel, metallic cobalt, sponge titanium and electrolytic aluminum into a vacuum induction furnace for smelting, heating to 1350 ℃ after melting down, smelting for 10 minutes, and casting into cast ingots in vacuum;
(2) Forging: forging the copper ingot prepared in the step (1), wherein the forging process conditions are as follows: heating to 780 ℃ to start forging, wherein the finish forging temperature is 650 ℃ to obtain the required shape and size;
(3) Solid solution: carrying out solid solution treatment on the blank obtained in the step (2), wherein the solid solution process conditions are as follows: heating to 790 ℃, preserving heat for 2 hours and immediately cooling by water;
(4) Aging treatment: and (4) carrying out aging treatment on the blank obtained in the step (3), wherein the aging process conditions are as follows: heating to 325 ℃, preserving heat for 3 hours, and then cooling in air.
As can be seen from FIG. 5, the copper alloy prepared by the preparation process has no enrichment, is dispersed and fine in distribution, has good online service life and has total steel excess of 1260 tons.
Comparative example 1
The copper alloy of this comparative example had a composition of Be 1.84%, co 0.25%, and the balance Cu.
The preparation process of the copper alloy of the comparative example is as follows:
(1) Smelting: adding electrolytic copper, beryllium copper alloy and metal cobalt into a vacuum induction furnace for smelting, heating to 1350 ℃ after melting down, smelting for 10 minutes, and casting into cast ingots in vacuum;
(2) Forging: forging the copper ingot prepared in the step (1), wherein the forging process conditions are as follows: heating to 780 ℃ to start forging, wherein the finish forging temperature is 650 ℃ to obtain the required shape and size;
(3) Solid solution: carrying out solid solution treatment on the blank obtained in the step (2), wherein the solid solution process conditions are as follows: heating to 790 ℃, preserving heat for 2 hours and immediately cooling by water;
(4) Aging treatment: and (4) performing aging treatment on the blank obtained in the step (3), wherein the aging treatment process conditions are as follows: heating to 325 ℃, preserving heat for 3 hours, and then cooling in air.
As can be seen from FIG. 6, the copper alloy prepared by the above preparation process has relatively large grains, non-uniform grains and enriched beta phase, and the total steel excess is 700 tons.
Comparative example 2
The copper alloy of this comparative example had a composition of Be 1.93%, co 0.28%, and the balance Cu.
The preparation process of the copper alloy of the comparative example comprises the following steps:
(1) Smelting: electrolytic copper, beryllium copper alloy and metal cobalt are added into a vacuum induction furnace for smelting, the temperature is raised to 1350 ℃ after melting down for smelting for 10 minutes, and cast ingots in vacuum;
(2) Forging: forging the copper ingot prepared in the step (1), wherein the forging process conditions are as follows: heating to 780 ℃ to start forging, wherein the finish forging temperature is 650 ℃ to obtain the required shape and size;
(3) Solid solution: carrying out solid solution treatment on the blank obtained in the step (2), wherein the solid solution process conditions are as follows: heating to 790 ℃, preserving the heat for 2 hours and immediately cooling by water;
(4) And (3) aging treatment: and (4) carrying out aging treatment on the blank obtained in the step (3), wherein the aging process conditions are as follows: heating to 325 ℃, preserving heat for 3 hours, and then cooling in air.
As can be seen from FIG. 7, the copper alloy prepared by the above preparation process has relatively large grains, non-uniform grains and enriched beta phase, and the total steel excess is 800 tons.
While the invention has been described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more particular description of the invention than is possible with reference to the specific embodiments, which are not to be construed as limiting the invention. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. The copper alloy for the thin strip chilling crystallizer is characterized by comprising the following components in percentage by weight: be 1.4-1.75%, co + Ni 0.2-1.0%, trace alloy element 0.05-0.3%, and Cu in balance.
2. The copper alloy for a thin strip chill crystallizer of claim 1, wherein said minor alloying elements are one or more of Al, si, fe, zr, zn, mg, ti.
3. The copper alloy for thin strip chill crystallizers as claimed in claim 1, wherein the content of said minor alloy element is 0.05 to 0.3%.
4. The copper alloy for thin strip chill molds as defined in claim 1 wherein the ratio of the weight percent of Co to Ni is from 4 to 5.
5. A method for producing the copper alloy for the thin strip chill crystallizer claimed in any one of claims 1 to 4, characterized by comprising the steps of:
(1) Smelting: adding electrolytic copper, beryllium copper alloy, metal nickel, metal cobalt and trace alloy elements according to the weight percentage, smelting, and casting in vacuum to obtain an alloy copper ingot;
(2) Forging: forging the alloy copper ingot obtained in the step (1) to obtain a blank;
(3) Solid solution: carrying out heating solution treatment on the blank obtained in the step (2), and then rapidly cooling by water;
(4) Aging treatment: and (4) carrying out aging treatment on the blank subjected to the solution treatment in the step (3).
6. The method for preparing the copper alloy for the thin strip quench crystallizer of claim 5, wherein in the step (1), the smelting is performed under the process conditions of 1200-1400 ℃ for 5-60 minutes.
7. The method of producing the copper alloy for a thin strip chill crystallizer of claim 5, wherein in the step (2), the forging temperature is 600 to 850 ℃.
8. The method for producing a copper alloy for a thin strip chill crystallizer as claimed in claim 5, wherein in the step (3), the process condition of the solid solution is a temperature of 700 to 800 ℃ and a heating time of 1 to 8 hours.
9. The method for producing a copper alloy for a thin strip chill crystallizer as claimed in claim 5, wherein in the step (4), the aging treatment is performed under the aging treatment condition of controlling the temperature to 250 to 350 ℃ for 1 to 10 hours.
10. A thin strip chill crystallizer characterized in that it is made of a copper alloy for the thin strip chill crystallizer according to any of claims 1-4.
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| CN111057886A (en) * | 2019-10-29 | 2020-04-24 | 宁夏中色新材料有限公司 | Preparation method of beryllium copper casting roll sleeve and beryllium copper casting roll sleeve |
| CN113174509A (en) * | 2021-03-15 | 2021-07-27 | 江阴金湾合金材料有限公司 | High-strength beryllium copper alloy bar and preparation process thereof |
| CN113458303A (en) * | 2020-03-30 | 2021-10-01 | 日本碍子株式会社 | Beryllium-copper alloy ring and manufacturing method thereof |
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| CN100467639C (en) * | 2006-03-22 | 2009-03-11 | 宝山钢铁股份有限公司 | High-strength copper alloy for thin-belt continuous casting crystallization roller and method for manufacturing same |
| CN102899518A (en) * | 2011-07-27 | 2013-01-30 | 北京有色金属研究总院 | High-elasticity stress relaxation-resistant beryllium-copper alloy and its preparation and processing method |
| CN106834794A (en) * | 2017-03-09 | 2017-06-13 | 苏州金江铜业有限公司 | A kind of tellurium beallon and preparation method thereof |
| CN108425034A (en) * | 2018-04-03 | 2018-08-21 | 烟台万隆真空冶金股份有限公司 | A kind of surface reinforcing method of beryllium copper Casting Roller set |
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| US4792365A (en) * | 1986-11-13 | 1988-12-20 | Ngk Insulators, Ltd. | Production of beryllium-copper alloys and alloys produced thereby |
| CN102181744A (en) * | 2011-04-27 | 2011-09-14 | 东莞市嘉盛铜材有限公司 | High-performance beryllium-copper alloy and preparation method thereof |
| CN102212712A (en) * | 2011-05-20 | 2011-10-12 | 李希涛 | Beryllium copper alloy, copper bush for amorphous and/or nano crystal strip production equipment and preparation method |
| CN111057886A (en) * | 2019-10-29 | 2020-04-24 | 宁夏中色新材料有限公司 | Preparation method of beryllium copper casting roll sleeve and beryllium copper casting roll sleeve |
| CN113458303A (en) * | 2020-03-30 | 2021-10-01 | 日本碍子株式会社 | Beryllium-copper alloy ring and manufacturing method thereof |
| CN113174509A (en) * | 2021-03-15 | 2021-07-27 | 江阴金湾合金材料有限公司 | High-strength beryllium copper alloy bar and preparation process thereof |
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