CN112474864B - Short-process preparation method of high-purity nickel strip - Google Patents
Short-process preparation method of high-purity nickel strip Download PDFInfo
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- CN112474864B CN112474864B CN202011169319.9A CN202011169319A CN112474864B CN 112474864 B CN112474864 B CN 112474864B CN 202011169319 A CN202011169319 A CN 202011169319A CN 112474864 B CN112474864 B CN 112474864B
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000005098 hot rolling Methods 0.000 claims abstract description 18
- 238000001513 hot isostatic pressing Methods 0.000 claims abstract description 16
- 238000005245 sintering Methods 0.000 claims abstract description 14
- 238000005097 cold rolling Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000137 annealing Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000280 densification Methods 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000012320 chlorinating reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
-
- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- 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
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention belongs to the technical field of nickel material processing, and particularly relates to a short-process preparation method of a high-purity nickel strip material. The invention fills high-purity nickel powder into a sheath, vacuumizes, seals and welds, then sinters the nickel powder into a compact nickel blank by hot isostatic pressing, and then manufactures a plate strip by hot rolling and cold rolling. According to the invention, no interstitial element impurities such as oxygen, nitrogen and the like are introduced in the processes of sheathing and hot isostatic pressing sintering of the nickel blank, the sheathing is wrapped for hot rolling, the pollution of air preheating oxidation to the internal high-purity nickel is avoided, and compared with the traditional high-purity nickel preparation process, the method is short in process flow, low in technical difficulty and high in yield, is suitable for large-scale production, and has important application prospects in the high-technical fields such as magnetic recording materials, magnetic sensor materials, photoelectric materials, integrated circuits, aircraft engines and the like.
Description
Technical Field
The invention belongs to the technical field of nickel material processing, and particularly relates to a short-process preparation method of a high-purity nickel strip material.
Technical Field
With the development of high and new technologies, the preparation, characteristics and application of high-purity metals belong to a novel and growing field in the fields of modern material science and engineering. As one of important high-purity metal materials, the market and the application of high-purity nickel are wide. The high-purity nickel is a base material for preparing high-purity reagents and standard samples, and can also be applied to the high-technical fields of preparation of magnetic recording materials, magnetic sensor materials, photoelectric materials and integrated circuits, hydrogenation catalysis, atomic reactor protection materials, biological materials, aircraft engines, low-expansion alloys and the like.
The invention patent with publication number CN103498059B provides a method for preparing high-purity nickel by electrolytic nickel chlorination, wherein electrolytic nickel, a solid reducing agent and a chlorinating agent are uniformly mixed in proportion, then reaction carrier gas is introduced to carry out chlorination roasting impurity removal treatment on the electrolytic nickel, and the produced high-temperature dust-containing flue gas is subjected to conventional cooling and dust collection treatment to obtain the residual material, namely the high-purity nickel. The technology effectively reduces the content of impurity elements such as iron, copper, zinc and the like in electrolytic nickel, so that the purity of the high-purity nickel of the process product reaches more than 99.999 percent, but the process flow is longer, the technical requirement is higher, and the generated dust-containing flue gas can pollute the environment when being improperly treated. The invention patent with publication number CN111530961A discloses a method for preparing an ultra-high-purity nickel strip in a short process, which takes a high-purity nickel plate as a raw material, and prepares the ultra-high-purity nickel strip by sequentially processing the high-purity nickel plate through the process steps of nickel plate processing, plasma welding, hot rolling, ultrasonic flaw detection and cold rolling. The high-purity nickel plate adopted by the method has high raw material price, and the subsequent processing procedures of hot rolling, cold rolling and the like can be carried out only after the nickel plate is connected by plasma welding, so that the production efficiency is reduced.
Disclosure of Invention
The invention aims to provide a short-process preparation method of a high-purity nickel strip aiming at the defects of the prior art. The preparation method of the high-purity nickel strip can simultaneously ensure the production requirements of high purity, short flow and high efficiency of the nickel strip so as to meet the market demand of the high-purity nickel strip at present.
In order to solve the defects of the prior art, the invention adopts the following technical scheme: a short-process preparation method of a high-purity nickel strip comprises the following steps:
(1) Preparing a high-purity nickel blank: filling high-purity nickel powder into a nickel sheath, heating to 300-600 ℃ in sheath manufacturing equipment, and vacuumizing to 10 DEG C -5 ~10 -6 Pa, sealing and welding the sheath, and then placing the sheath into a hot isostatic pressing machine for sintering densification, wherein the sintering temperature is 850-1200 ℃, the pressure is 50-200MPa, and the heat and pressure maintaining time is 0.5-5 hours;
(2) Hot rolling: sheathing the nickel blank belt subjected to the hot isostatic pressing treatment in the step (1) in an air heating furnace for preheating, wherein the heating temperature is 600-1000 ℃, and performing hot rolling for multiple times to obtain a plate with the required thickness;
(3) Reduction annealing: reducing the plate subjected to hot rolling in the step (2) in a hydrogen reduction furnace at 400-600 ℃, removing an oxide layer on the surface of the plate, and eliminating the internal hot rolling stress;
(4) Cold rolling: and (4) carrying out cold rolling on the plate subjected to reduction annealing in the step (3) to prepare a high-purity nickel strip.
Further, the high-purity nickel powder in the step (1) comprises one or more of electrolytic nickel powder, reduced nickel powder and carbonyl nickel powder.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention uses high-purity nickel powder as raw material, separates oxygen and nitrogen from impurity sources in the whole process, and ensures the high purity of nickel plate strip.
(2) According to the invention, no interstitial element impurities such as oxygen, nitrogen and the like are introduced in the processes of sheathing and hot isostatic pressing sintering of the nickel blank, the sheathing is wrapped for hot rolling, the pollution of air preheating oxidation to internal high-purity nickel is avoided, and compared with the traditional high-purity nickel preparation process, the method is short in process flow, low in technical difficulty and high in yield, is suitable for large-scale production, and has important application prospects in the high-technical fields such as magnetic recording materials, magnetic sensor materials, photoelectric materials, integrated circuits, aircraft engines and the like.
(3) The invention directly carries out hot rolling and cold rolling after sheathing and hot isostatic pressing treatment without removing the sheath, shortens the process steps, improves the production efficiency and is suitable for large-scale production and manufacture of high-purity nickel plate strips.
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples.
Example 1
A short-process preparation method of a high-purity nickel strip comprises the following steps:
(1) Filling high-purity electrolytic nickel powder with average particle size of 8 μm into a nickel sheath, heating to 600 deg.C in sheath manufacturing equipment, and vacuumizing to 10% -6 Pa, sealing and welding the sheath, and then placing the sheath into a hot isostatic pressing machine for sintering densification, wherein the sintering temperature is 1200 ℃, the pressure is 50 MPa, and the heat and pressure preservation time is 0.5 hour;
(2) Sheathing the hot isostatic pressing nickel blank belt in an air heating furnace for preheating, wherein the heating temperature is 1000 ℃, and performing multi-pass hot rolling to obtain a plate with the required thickness;
(3) Heating a hot rolled plate in a hydrogen reduction furnace, wherein the reduction temperature is 600 ℃;
(4) And (3) cold rolling the plate subjected to reduction annealing to prepare a high-purity nickel strip with the purity of 99.9999%.
Example 2
A short-process preparation method of a high-purity nickel strip comprises the following steps:
(1) Filling high-purity carbonyl nickel powder with average particle size of 3 microns into a nickel sheath, heating to 300 ℃ in sheath manufacturing equipment, and vacuumizing to 10 DEG -5 Pa, sealing and welding the sheath, and then placing the sheath into a hot isostatic pressing machine for sintering densification, wherein the sintering temperature is 850 ℃, the pressure is 200MPa, and the heat and pressure preservation time is 5 hours;
(2) Sheathing the hot isostatic pressing nickel blank belt in an air heating furnace for preheating, wherein the heating temperature is 600 ℃, and performing multi-pass hot rolling to obtain a plate with the required thickness;
(3) Heating the hot rolled plate in a hydrogen reduction furnace, wherein the reduction temperature is 400 ℃;
(4) And (3) cold rolling the plate subjected to reduction annealing to prepare a high-purity nickel strip with the purity of 99.999%.
Example 3
A short-process preparation method of a high-purity nickel strip comprises the following steps:
(1) Filling high-purity reduced nickel powder with average particle size of 10 microns into a nickel sheath, heating to 500 deg.C in sheath manufacturing equipment, and vacuumizing to 10 deg.C -6 Pa, sealing and welding the sheath, and then placing the sheath into a hot isostatic pressing machine for sintering densification, wherein the sintering temperature is 1000 ℃, the pressure is 120 MPa, and the heat and pressure preservation time is 3 hours;
(2) Sheathing the hot isostatic pressing nickel blank belt in an air heating furnace for preheating, wherein the heating temperature is 900 ℃, and performing multi-pass hot rolling to obtain a plate with the required thickness;
(3) Heating the hot rolled plate in a hydrogen reduction furnace, wherein the reduction temperature is 550 ℃;
(4) And (3) cold rolling the plate subjected to reduction annealing to prepare a high-purity nickel strip with the purity of 99.999%.
Example 4
A short-process preparation method of a high-purity nickel strip comprises the following steps:
(1) Filling high-purity electrolytic nickel powder with average particle size of 5 μm into a nickel sheath, heating to 400 deg.C in sheath manufacturing equipment, and vacuumizing to 10% -5 Pa, sealing and welding the sheath, and then placing the sheath into a hot isostatic pressing machine for sintering densification, wherein the sintering temperature is 980 ℃, the pressure is 150 MPa, and the heat and pressure preservation time is 2 hours;
(2) Sheathing the hot isostatic pressing nickel blank belt in an air heating furnace for preheating, wherein the heating temperature is 800 ℃, and performing multi-pass hot rolling to obtain a plate with the required thickness;
(3) Heating the hot rolled plate in a hydrogen reduction furnace, wherein the reduction temperature is 500 ℃;
(4) And (3) cold rolling the plate subjected to reduction annealing to prepare a high-purity nickel strip with the purity of 99.9999%.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the principles of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (2)
1. A short-process preparation method of a high-purity nickel strip is characterized by comprising the following steps:
(1) Preparing a high-purity nickel blank: filling high-purity nickel powder into a nickel sheath, heating to 300-600 ℃ in sheath manufacturing equipment, and vacuumizing to 10 DEG C -5 ~10 -6 Pa, sealing and welding the sheath, and then placing the sheath into a hot isostatic pressing machine for sintering densification, wherein the sintering temperature is 850-1200 ℃, the pressure is 50-200MPa, and the heat and pressure maintaining time is 0.5-5 hours;
(2) Hot rolling: sheathing the nickel blank belt subjected to the hot isostatic pressing treatment in the step (1) in an air heating furnace for preheating, wherein the heating temperature is 600-1000 ℃, and performing hot rolling for multiple times to obtain a plate with the required thickness;
(3) Reduction annealing: reducing the plate subjected to hot rolling in the step (2) in a hydrogen reduction furnace at 400-600 ℃, removing an oxide layer on the surface of the plate, and eliminating the internal stress of hot rolling;
(4) Cold rolling: and (4) carrying out cold rolling processing on the plate subjected to reduction annealing in the step (3) to prepare a high-purity nickel strip.
2. The short-process preparation method of high-purity nickel strip according to claim 1, wherein the high-purity nickel powder in step (1) comprises one or more of electrolytic nickel powder, reduced nickel powder and carbonyl nickel powder.
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| CN202011169319.9A CN112474864B (en) | 2020-10-28 | 2020-10-28 | Short-process preparation method of high-purity nickel strip |
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| CN202011169319.9A CN112474864B (en) | 2020-10-28 | 2020-10-28 | Short-process preparation method of high-purity nickel strip |
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| CN112474864B true CN112474864B (en) | 2022-12-02 |
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| CN114082953B (en) * | 2021-11-23 | 2024-03-15 | 无锡市东杨新材料股份有限公司 | Preparation method of nickel-copper composite strip with high weldability |
| CN114082958B (en) * | 2021-11-23 | 2024-04-19 | 无锡市东杨新材料股份有限公司 | Preparation method of nickel-copper bimetal composite strip |
| CN115094410B (en) * | 2022-06-29 | 2023-11-28 | 无锡市东杨新材料股份有限公司 | Method for improving oxidation resistance of nickel plate strip processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850422A (en) * | 2010-04-30 | 2010-10-06 | 北京工业大学 | Ni-base alloy composite base band prepared by hot isostatic pressing method |
| CN102672447A (en) * | 2011-03-17 | 2012-09-19 | 沈翠珊 | Manufacturing method of high-purity nickel strap |
| CN111530961A (en) * | 2020-05-09 | 2020-08-14 | 江苏远航精密合金科技股份有限公司 | Method for preparing ultra-high-purity nickel strip in short process |
| CN111647764A (en) * | 2020-04-20 | 2020-09-11 | 中南大学 | Nickel-based powder superalloy and forming method thereof |
-
2020
- 2020-10-28 CN CN202011169319.9A patent/CN112474864B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850422A (en) * | 2010-04-30 | 2010-10-06 | 北京工业大学 | Ni-base alloy composite base band prepared by hot isostatic pressing method |
| CN102672447A (en) * | 2011-03-17 | 2012-09-19 | 沈翠珊 | Manufacturing method of high-purity nickel strap |
| CN111647764A (en) * | 2020-04-20 | 2020-09-11 | 中南大学 | Nickel-based powder superalloy and forming method thereof |
| CN111530961A (en) * | 2020-05-09 | 2020-08-14 | 江苏远航精密合金科技股份有限公司 | Method for preparing ultra-high-purity nickel strip in short process |
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Denomination of invention: A Short Process Preparation Method for High Purity Nickel Strip Granted publication date: 20221202 Pledgee: Wuxi Xishan sub branch of Bank of China Ltd. Pledgor: WUXI TOYON NEW MATERIALS CO.,LTD. Registration number: Y2024980010816 |
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