CN115948686B - Preparation method of high-manganese high-temperature vacuum alloy - Google Patents
Preparation method of high-manganese high-temperature vacuum alloy Download PDFInfo
- Publication number
- CN115948686B CN115948686B CN202211725696.5A CN202211725696A CN115948686B CN 115948686 B CN115948686 B CN 115948686B CN 202211725696 A CN202211725696 A CN 202211725696A CN 115948686 B CN115948686 B CN 115948686B
- Authority
- CN
- China
- Prior art keywords
- alloy
- rolling
- casting
- temperature
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 62
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 49
- 239000011572 manganese Substances 0.000 title claims abstract description 34
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 238000000137 annealing Methods 0.000 claims abstract description 11
- 238000003723 Smelting Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000004321 preservation Methods 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 238000005219 brazing Methods 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- UTICYDQJEHVLJZ-UHFFFAOYSA-N copper manganese nickel Chemical compound [Mn].[Ni].[Cu] UTICYDQJEHVLJZ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to the technical field of alloy materials, provides a preparation method of a high-manganese high-temperature vacuum alloy, and solves the technical problems of low yield and high processing difficulty of the existing high-manganese high-temperature vacuum alloy. The high-manganese high-temperature vacuum alloy comprises, by mass, 40-46% of Mn, 10-15% of Ni and the balance of Cu, and the preparation method of the alloy is characterized by comprising the following steps: s1, weighing raw materials; s2, smelting; s3, casting; s4, peeling; s5, cogging; s6, middle rolling; s7, finish rolling; in the step S3, the die is heated before casting, so that the temperature difference between the die and the alloy melt is less than 300 ℃; in the step S7, the rolling deformation rate of each pass is 20% -25%, annealing is carried out after each pass of rolling, the annealing temperature is 760 ℃, and the heat preservation time is 6 hours.
Description
Technical Field
The invention relates to the technical field of alloy materials, in particular to a preparation method of a high-manganese high-temperature vacuum alloy.
Background
The high-strength, high-temperature and wear-resistant alloy material mature in China at present is mainly made of copper-manganese-nickel materials. The formula principle is as follows:
the copper and the nickel can be infinitely dissolved with each other, and the pure copper and the nickel can obviously improve the mechanical property and the physical property of the material, so that the strength, the hardness, the corrosion resistance, the thermoelectric property, the ductility and other properties of the material are greatly improved, and the resistivity temperature coefficient can be reduced. Manganese is dissolved in the matrix of metal material and has solid solution strengthening effect. Meanwhile, manganese can form carbide with carbon in the alloy, so that adverse effect of excessive carbon on the material is eliminated, dispersion strengthening effect is achieved, and wettability of the alloy material is enhanced. Manganese can also enhance the strength, hardness, wear resistance, corrosion resistance and elasticity of the alloy, has deoxidization and desulfurization effects, can regulate copper and nickel, improves the process, improves the performance, and ensures that the processability is better and the overall performance is more excellent.
The manganese content of a plurality of copper-manganese-nickel material products developed in the current industry is below 30 percent. However, in some high-end applications, improvements in the original formulation, such as increased manganese content, are needed to achieve higher strength, hardness, and better wear and corrosion resistance.
The applicant finds that when the Mn content is further increased to more than 40%, the strength, hardness, wear resistance and corrosion resistance of the alloy material can be expected, but the yield of the alloy material is low, the processing difficulty is high, and the alloy material mainly comprises the following two aspects:
(1) The shrinkage cavity of the casting is increased, and serious loosening, segregation and aggregation of oxygen ratio substances tend to occur near the shrinkage cavity, which seriously affects the performance and quality of the material and can cause excessive deformation or fracture accidents of engineering components;
(2) The brittleness of the material is enhanced, and the alloy material is easy to crack and break in the rolling process.
Therefore, we propose a preparation method of high-manganese high-temperature vacuum alloy.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a preparation method of high-manganese high-temperature vacuum alloy, which solves the technical problems of low yield and high processing difficulty of the existing high-manganese high-temperature vacuum alloy.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the preparation method of the high-manganese high-temperature vacuum alloy comprises the following components, by mass, 40-46% of Mn, 10-15% of Ni and the balance of Cu, and is characterized by comprising the following steps of
S1, weighing three raw materials of Mn, ni and Cu according to the component ratio;
s2, putting three raw materials of Mn, ni and Cu into a high-vacuum brazing furnace for smelting, wherein the smelting temperature is 1500 ℃, and the vacuum degree is higher than 7.9x10 < - > Pa, so as to obtain an alloy melt;
s3, casting the alloy melt into a die to obtain an alloy casting with the thickness of 3cm, and heating the die before casting to ensure that the temperature difference between the die and the alloy melt is less than 300 ℃;
s4, the alloy casting is subjected to car peeling to remove the thickness of each of the upper surface and the lower surface by 1 mm;
s5, cogging and rolling the alloy casting until the thickness is less than 1.3mm;
s6, rolling the alloy casting to a thickness of less than 0.8mm;
s7, performing finish rolling on the alloy casting to obtain a thickness of 0.05mm;
in the step S7, the rolling deformation rate of each pass is 20% -25%, annealing is performed after each pass of rolling, the annealing temperature is 760 ℃, and the heat preservation time is 6 hours.
Further, argon protection is adopted for smelting, and nitrogen protection is adopted for annealing.
Further, after the steps S3 and S7, the alloy castings are cleaned respectively.
Further, after step S7, the die-cut Jin Zhujian is cut and punched to a desired specification.
(III) beneficial effects
The invention provides a preparation method of a high-manganese high-temperature vacuum alloy, which has the following beneficial effects:
1. the invention adopts the high vacuum brazing furnace to smelt metal, so that the temperature of each part of the melt is basically consistent, in addition, before casting, the die is actively heated, so that the temperature difference between the die and the alloy melt is less than 300 ℃, shrinkage cavity and segregation are not easy to occur even if the Mn content of the alloy material is more than 40%, and the yield of products is improved.
2. The alloy material has the advantages that the Mn content is more than 40%, the hardness is high, the brittleness is strong, the rolling deformation rate of each pass in the middle rolling and the finish rolling processes is precisely controlled, the alloy material is not easy to crack and break during rolling, and meanwhile, annealing is performed after each pass of rolling, so that the residual stress of the material is reduced, and the deformation and crack tendency are reduced.
3. The invention makes the yield of the alloy material reach more than 45% through the combined action of the two points.
4. The high-manganese high-temperature vacuum alloy prepared by the invention has good performance, and concretely comprises the following components,
(1) Oxygen content of the product: less than or equal to 35ppm;
(2) Braze joint leak rate: is less than or equal to 5 multiplied by 10 -10 atmcc/sec；
(3) Tensile strength: more than or equal to 700 MPa;
(4) Brinell hardness: more than or equal to 350HBS;
(5) Melting temperature: 1050-1130 ℃;
(6) Elongation percentage: more than or equal to 13 percent.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The preparation method of the high-manganese high-temperature vacuum alloy comprises the following components in percentage by mass, wherein the Mn is 44%, the Ni is 15% and the balance is Cu, and the preparation method comprises the following steps of
S1, weighing three raw materials of Mn, ni and Cu according to the component ratio, wherein the purity of the three raw materials is 99.9 percent;
s2, putting three raw materials of Mn, ni and Cu into a high-vacuum brazing furnace for smelting, wherein the smelting temperature is 1500 ℃, the vacuum degree is 8.0x10 < - > Pa, and the protection of argon is adopted to obtain an alloy melt;
s3, casting the alloy melt into a die to obtain an alloy casting with the thickness of 3cm, and heating the die before casting, wherein the temperature difference between the die and the alloy melt is 300 ℃;
cleaning the alloy casting;
s4, the alloy casting is subjected to car peeling to remove the thickness of each of the upper surface and the lower surface by 1 mm;
s5, cogging and rolling the alloy casting to the thickness of 1.2mm;
s6, rolling the alloy casting to a thickness of 0.6mm;
s7, performing finish rolling on the alloy casting to obtain a thickness of 0.05mm;
in the step S7, the rolling deformation rate of each pass is 20% -25%, annealing is carried out after each pass of rolling, the annealing temperature is 760 ℃, the heat preservation time is 6 hours, and nitrogen protection is adopted;
s8, cleaning the alloy casting;
s9, cutting, wherein the width of the strip is 50mm;
s10, stamping, namely stamping into various specifications by using different stamping dies according to requirements.
The casting obtained in the production process of the process has no shrinkage cavity or segregation, and the material yield reaches 45%.
The high-manganese high-temperature vacuum alloy prepared by the embodiment has good performance, and concretely comprises the following components,
(1) Oxygen content of the product: 33ppm;
(2) Braze joint leak rate: 4X 10 -10 atmcc/sec；
(3) Tensile strength: 720M Pa;
(4) Brinell hardness: 360 HBS;
(5) Melting temperature: 1090 ℃;
(6) Elongation percentage: 13.5 Percent of the total weight of the composition.
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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. The preparation method of the high-manganese high-temperature vacuum alloy is characterized by comprising the following components, by mass, 40-46% of Mn, 10-15% of Ni and the balance of Cu:
s1, weighing three raw materials of Mn, ni and Cu according to the component ratio;
s2, putting three raw materials of Mn, ni and Cu into a high-vacuum brazing furnace for smelting, wherein the smelting temperature is 1500 ℃, and the vacuum degree is higher than 7.9x10 < - > Pa, so as to obtain an alloy melt;
s3, casting the alloy melt into a die to obtain an alloy casting with the thickness of 3cm, and heating the die before casting to ensure that the temperature difference between the die and the alloy melt is less than 300 ℃;
s4, the alloy casting is subjected to car peeling to remove the thickness of each of the upper surface and the lower surface by 1 mm;
s5, cogging and rolling the alloy casting until the thickness is less than 1.3mm;
s6, rolling the alloy casting to a thickness of less than 0.8mm;
s7, finish rolling the alloy casting to a thickness of 0.05mm;
in the step S7, the rolling deformation rate of each pass is 20% -25%, annealing is carried out after each pass of rolling, the annealing temperature is 760 ℃, and the heat preservation time is 6 hours;
argon protection is adopted for smelting, and nitrogen protection is adopted for annealing;
s3, after S7, cleaning the alloy castings respectively;
after the step S7, the combination Jin Zhujian is cut and punched to the required specification;
the preparation method ensures that the yield of the alloy material is more than or equal to 45 percent;
the high-manganese high-temperature vacuum alloy prepared by the preparation method has the following properties,
oxygen content of the product: less than or equal to 35ppm; braze joint leak rate: is less than or equal to 5 multiplied by 10 ﹣10 atm cc/sec; tensile strength: more than or equal to 700 MPa; brinell hardness: more than or equal to 350HBS; melting temperature: 1050-1130 ℃; elongation percentage:≥13%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211725696.5A CN115948686B (en) | 2022-12-31 | 2022-12-31 | Preparation method of high-manganese high-temperature vacuum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211725696.5A CN115948686B (en) | 2022-12-31 | 2022-12-31 | Preparation method of high-manganese high-temperature vacuum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115948686A CN115948686A (en) | 2023-04-11 |
| CN115948686B true CN115948686B (en) | 2024-03-12 |
Family
ID=87291173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211725696.5A Active CN115948686B (en) | 2022-12-31 | 2022-12-31 | Preparation method of high-manganese high-temperature vacuum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115948686B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981396A (en) * | 2014-05-09 | 2014-08-13 | 曹帅 | High-damping Mn-Ni-based damping alloy and preparation method thereof |
| CN107641732A (en) * | 2017-09-19 | 2018-01-30 | 西南交通大学 | A kind of preparation method of high-damping two-phase Mn Cu alloys |
| CN109777998A (en) * | 2019-03-25 | 2019-05-21 | 西南交通大学 | A kind of high-strength and high damping Mn-Cu based alloy and preparation method thereof |
| WO2020064127A1 (en) * | 2018-09-28 | 2020-04-02 | Thyssenkrupp Steel Europe Ag | Shape-memory alloy, flat steel product made therefrom with pseudo-elastic properties, and method for producing such a flat steel product |
| CN114134378A (en) * | 2021-09-15 | 2022-03-04 | 上海大学 | High-entropy high-temperature manganese-based damping alloy material and preparation method thereof |
| CN115233007A (en) * | 2022-08-19 | 2022-10-25 | 西安瑞鑫科金属材料有限责任公司 | Preparation method of high Mn copper alloy foil for brazing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100003159A1 (en) * | 2005-10-14 | 2010-01-07 | Tzeng-Feng Liu | Low-density high-toughness alloy and the fabrication method thereof |
-
2022
- 2022-12-31 CN CN202211725696.5A patent/CN115948686B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981396A (en) * | 2014-05-09 | 2014-08-13 | 曹帅 | High-damping Mn-Ni-based damping alloy and preparation method thereof |
| CN107641732A (en) * | 2017-09-19 | 2018-01-30 | 西南交通大学 | A kind of preparation method of high-damping two-phase Mn Cu alloys |
| WO2020064127A1 (en) * | 2018-09-28 | 2020-04-02 | Thyssenkrupp Steel Europe Ag | Shape-memory alloy, flat steel product made therefrom with pseudo-elastic properties, and method for producing such a flat steel product |
| CN109777998A (en) * | 2019-03-25 | 2019-05-21 | 西南交通大学 | A kind of high-strength and high damping Mn-Cu based alloy and preparation method thereof |
| CN114134378A (en) * | 2021-09-15 | 2022-03-04 | 上海大学 | High-entropy high-temperature manganese-based damping alloy material and preparation method thereof |
| CN115233007A (en) * | 2022-08-19 | 2022-10-25 | 西安瑞鑫科金属材料有限责任公司 | Preparation method of high Mn copper alloy foil for brazing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115948686A (en) | 2023-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI415958B (en) | Copper alloy for electronic material and method for manufacturing the same | |
| KR102502373B1 (en) | Copper alloy and producing method thereof | |
| CN112059468B (en) | Silver-based brazing filler metal alloy, preparation method thereof, and preparation methods of foil strip and wire material | |
| CN110551915B (en) | Copper-iron intermediate alloy and preparation method thereof | |
| JPH059619A (en) | Production of high-strength copper alloy | |
| JPH0569888B2 (en) | ||
| CN114645154B (en) | Preparation method of high-hardness copper alloy | |
| JP2008223069A (en) | High-strength, high-conductivity copper alloy and its manufacturing method | |
| CN115948686B (en) | Preparation method of high-manganese high-temperature vacuum alloy | |
| CN113927204B (en) | High-temperature copper-based foil brazing material and manufacturing method thereof | |
| CN111647807B (en) | High-alloy die steel and preparation process thereof | |
| CN113215489A (en) | High-strength-plasticity low-chromium nickel-saving type duplex stainless steel and stretching preparation method thereof | |
| NO761628L (en) | ||
| JP5887449B2 (en) | Copper alloy, cold-rolled sheet and method for producing the same | |
| CN114669960B (en) | Preparation method of high-strength high-conductivity copper alloy load switch knife | |
| JP4130593B2 (en) | High strength and high conductivity copper alloy with excellent fatigue and intermediate temperature characteristics | |
| CN112322987B (en) | Ultrahigh-strength steel wire for electric arc additive manufacturing and preparation method | |
| JP3763234B2 (en) | Method for producing high-strength, high-conductivity, high-heat-resistant copper-based alloy | |
| CN114000027A (en) | UNS N08120 forged ring and manufacturing method thereof | |
| JPH0314896B2 (en) | ||
| JPH07113133B2 (en) | Cu alloy for continuous casting mold | |
| CN117026015B (en) | High-temperature-resistant alloy and preparation method and application thereof | |
| US4102709A (en) | Workable nickel alloy and process for making same | |
| CN110343963B (en) | Hot work die steel and preparation method thereof | |
| CN117358757A (en) | Plug for rolling high alloy steel pipe and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |