CN115161444B - Low-expansion alloy 4J36 precise foil and superfine crystal solid solution heat treatment method and application thereof - Google Patents
Low-expansion alloy 4J36 precise foil and superfine crystal solid solution heat treatment method and application thereof Download PDFInfo
- Publication number
- CN115161444B CN115161444B CN202210969703.XA CN202210969703A CN115161444B CN 115161444 B CN115161444 B CN 115161444B CN 202210969703 A CN202210969703 A CN 202210969703A CN 115161444 B CN115161444 B CN 115161444B
- Authority
- CN
- China
- Prior art keywords
- heat treatment
- expansion alloy
- rolling
- solution heat
- low
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000011888 foil Substances 0.000 title claims abstract description 59
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 58
- 239000000956 alloy Substances 0.000 title claims abstract description 58
- 239000013078 crystal Substances 0.000 title claims abstract description 27
- 239000006104 solid solution Substances 0.000 title claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims abstract description 81
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000000243 solution Substances 0.000 claims description 23
- 239000001257 hydrogen Substances 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000005530 etching Methods 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 6
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 34
- 238000010586 diagram Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000000137 annealing Methods 0.000 description 3
- 229910001374 Invar Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- 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
- B21B1/40—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 foils which present special problems, e.g. because of thinness
-
- 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
- C21D1/34—Methods of heating
-
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- 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
-
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
Abstract
The invention belongs to the technical field of stainless steel heat treatment, and relates to a low-expansion alloy 4J36 precise foil and an ultrafine crystal solid solution heat treatment method and application thereof. Specifically, the low-expansion alloy 4J36 precise foil superfine crystal solid solution heat treatment method provided by the invention sequentially comprises the following steps: a raw material initial rolling process, an intermediate heat treatment process, a finished product rolling process and a finished product solid solution heat treatment process. The invention realizes the fine crystallization solid solution heat treatment of the low expansion alloy 4J36 with the thickness of 0.03mm, and meets the precision etching processing requirement of the OLED display screen industry.
Description
Technical Field
The invention belongs to the technical field of stainless steel heat treatment, relates to a solution heat treatment method of special alloy foil, and particularly relates to a low-expansion alloy 4J36 precise foil, and an ultrafine crystal solution heat treatment method and application thereof.
Background
The 4J36 low expansion alloy is also known as invar, and has a Curie point of about 230 ℃, below which the alloy is ferromagnetic, has a very low expansion coefficient, and above which the alloy is nonmagnetic and has an increased expansion coefficient. The low-expansion alloy 4J36 precise foil is mainly applied to OLED display screen production and is a basic material of a key template FMM in a production line.
At present, the domestic production of low expansion alloy 4J36 precision foil products with the thickness of 0.03mm is not reported yet, and the international low expansion alloy 4J36 precision foil market is examined, so that Japanese enterprises can produce 4J36 foils with the thickness of 0.03mm and below. However, the products are all dependent on import in China, and the preparation process of the related products is blank in China.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a low-expansion alloy 4J36 precise foil and an ultrafine crystal solution heat treatment method and application thereof.
Specifically, in a first aspect, the method for solution heat treatment of superfine crystals of the low-expansion alloy 4J36 precision foil provided by the invention sequentially comprises the following steps: a raw material initial rolling process, an intermediate heat treatment process, a finished product rolling process and a finished product solid solution heat treatment process.
According to the superfine crystal solution heat treatment method for the low-expansion alloy 4J36 precise foil, in the initial rolling process of the raw material, the thickness of the raw material is less than or equal to 0.4mm, and the initial rolling target thickness is 0.1mm.
According to the superfine crystal solution heat treatment method for the low-expansion alloy 4J36 precise foil, in the initial rolling process of the raw material, the total deformation of initial rolling is more than or equal to 60%, the initial rolling pass is not less than 5 passes, the rolling force is not more than 350KN, and the rolling speed is not more than 300m/min.
In the intermediate heat treatment process, the furnace temperature is 950-1150 ℃, the process speed in a heat treatment furnace is not lower than 30m/min, the rotating speed of a cooling fan is not higher than 1500r/min, the dew point of hydrogen in the furnace is not higher than-63 ℃, and the oxygen content in the furnace is not higher than 10ppm.
The low expansion alloy 4J36 precise foil superfine crystal solid solution heat treatment method comprises the steps of rolling a finished product, wherein the target thickness of rolling is 0.03mm or less; the total deformation of the initial rolling is more than or equal to 75 percent, the initial rolling pass is not less than 5 passes, the rolling force is not more than 350KN, and the rolling speed is not more than 200m/min.
According to the low-expansion alloy 4J36 precise foil superfine crystal solution heat treatment method, the finished product solution heat treatment process is carried out by adopting an all-hydrogen vertical annular sectional heating mode.
In the solution heat treatment process of the finished product, the heat treatment temperature of the first section and the second section is not higher than 800 ℃, and the heat treatment temperature of the third section and the fourth section is not higher than 920 ℃; the solid solution heat treatment speed is not lower than 35m/min; the rotating speed of the cooling fan is not higher than 1000r/min; the dew point of hydrogen in the furnace is not higher than-75 ℃; the oxygen content in the furnace is not higher than 10ppm.
On the other hand, the invention also provides a low-expansion alloy 4J36 precise foil which is treated by adopting the low-expansion alloy 4J36 precise foil superfine crystal solid solution heat treatment method.
The thickness of the low-expansion alloy 4J36 precise foil is less than or equal to 0.03mm, and the grain size is less than or equal to 5 mu m.
In still another aspect, the invention further provides an application of the low-expansion alloy 4J36 precision foil in the production of OLED display screens.
The technical scheme of the invention has the following beneficial effects:
according to the invention, through carrying out double-rolling-process large-deformation rolling, intermediate high-temperature low-speed heat treatment and low-temperature high-speed heat treatment on the low-expansion alloy 4J36 strip raw material, the fine crystallization solid solution heat treatment of the low-expansion alloy 4J36 precise foil with the thickness of 0.03mm is realized, and the precise etching processing requirement of the OLED display screen industry is met.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
FIG. 1 is a process flow diagram of a low expansion alloy 4J36 precision foil superfine crystal solution heat treatment method of the invention;
FIG. 2 is a schematic diagram of the cross sectional structure size of a 4J36 strip after initial rolling;
FIG. 3 is a schematic view of metallographic structure of the strip after intermediate heat treatment;
FIG. 4 is a schematic diagram of metallographic structure of the strip after heat treatment of the finished product;
FIG. 5 shows the cross-sectional structure of a 4J36 foil finished product after annealing at 500 times;
FIG. 6 is a schematic diagram of a mask product produced from a precision foil of low expansion alloy 4J36 according to the present invention;
FIG. 7 is a schematic diagram of the mesh of the low expansion alloy 4J36 precision foil of the present invention after etching.
Detailed Description
The present invention will be described in detail with reference to the following embodiments for a full understanding of the objects, features, and effects of the present invention. The process of the present invention is carried out by methods or apparatus conventional in the art, except as described below. The following terms have the meanings commonly understood by those skilled in the art unless otherwise indicated.
The terms "first," "second," and the like, as used herein do not denote any order or importance, but rather are used to distinguish one element from another, and the terms "the," "a," "an," and "an" do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. The terms "preferred," "more preferred," and the like refer to embodiments of the invention that may provide certain benefits in certain circumstances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values for the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to include any and all subranges subsumed therein.
In order to fill the blank of the domestic special alloy foil industry, the inventor of the application adopts double-rolling-process large-deformation rolling, intermediate high-temperature low-speed heat treatment process and finished product low-temperature high-speed heat treatment process to the raw materials of the low-expansion alloy 4J36 precise foil according to the research and analysis of a careful system, and realizes the production of the low-expansion alloy 4J36 precise foil with the grain size less than or equal to 5 mu m and the thickness less than or equal to 0.03 mm. Through detection, the heat treatment process based on the superfine crystal structure meets the size requirement of the structure of the precise etching processing in the industry, and fills the blank of the domestic special alloy foil industry.
Specifically, as shown in fig. 1, the method for solution heat treatment of superfine crystals of the low-expansion alloy 4J36 precision foil provided by the invention sequentially comprises the following steps: a raw material initial rolling process, an intermediate heat treatment process, a finished product rolling process and a finished product solid solution heat treatment process.
The following describes each procedure of the ultra-fine grain solution heat treatment method for the low expansion alloy 4J36 precision foil in detail:
(1) Raw material blooming process
The equipment adopted in the initial rolling process of the raw materials is a 20-roller precision rolling mill, and the purpose of initial rolling is to destroy and reform 7-8 grade finer grains under the conditions of larger deformation rolling and proper heat treatment process after initial rolling and heat treatment, so that the elongation of the strip is improved, and a good base material is provided for the large deformation rolling and solid solution fine crystal treatment of the finished product. .
In the initial rolling process of the raw materials, the thickness of the raw materials is less than or equal to 0.4mm, and the initial rolling target thickness is 0.1mm.
Preferably, in the initial rolling process, the initial rolling total deformation is more than or equal to 60 percent, the initial rolling pass is not less than 5 passes, the rolling force is not more than 350KN, and the rolling speed is not more than 300m/min.
Further preferably, the initial rolling total deformation is 60%, the initial rolling passes are 6, the rolling force is 200-320KN, and the rolling speed is 150-300m/min.
As can be seen from the schematic diagram of the cross-sectional structure of the 4J36 strip after blooming shown in FIG. 2, the cross-sectional structure of the 4J36 strip after blooming according to the method of the invention is in the shape of a laminar sheet, and the length dimension is controlled below 0.15mm (150 micrometers).
(2) Intermediate heat treatment step
The intermediate heat treatment process aims to improve the plasticity and toughness of the material and provide a high-quality base material for rolling finished products.
Wherein the intermediate heat treatment process is performed in a vertical bright annealing furnace.
Preferably, the furnace temperature is 950-1150 ℃, the process speed in the heat treatment furnace is not lower than 30m/min, the rotating speed of the cooling fan is not higher than 1500r/min, the dew point of hydrogen in the furnace is not higher than-63 ℃, and the oxygen content in the furnace is not higher than 10ppm.
Further preferably, the furnace temperature is 1080 ℃, the furnace heat treatment process speed is 28m/min, the rotating speed of a cooling fan is 1500r/min, the dew point of hydrogen in the furnace is-68 ℃, and the oxygen content in the furnace is 3-8ppm.
As can be seen from the schematic diagram of the metallographic structure of the strip after the intermediate heat treatment shown in FIG. 3, the strip after the intermediate heat treatment has irregular crystal grains, the grain size is controlled to be less than or equal to 0.02mm, and the grain size reaches more than 8 grades.
(3) Rolling process of finished product
The equipment adopted in the finished product rolling process is a 20-roller reversible rolling mill, and the purpose of finished product rolling is to achieve the required thickness and deformation of the product and prepare for heat treatment of the finished product.
Preferably, the target thickness of the final product rolling is 0.03mm or less.
Preferably, in the finished product rolling process, the initial rolling total deformation is more than or equal to 75 percent, the initial rolling pass is not less than 5 passes, the rolling force is not more than 350KN, and the rolling speed is not more than 200m/min.
Further preferably, in the final rolling process, the initial rolling total deformation is 75%, the initial rolling passes are 7, the rolling force is 140-320KN, and the rolling speed is 150-280m/min.
After detection, the grain size of the strip material after preliminary rolling and heat treatment reaches below 10 microns, and the finished product is fully deformed after large deformation rolling to generate enough internal texture.
(4) Solution heat treatment process of finished product
The invention adopts an all-hydrogen vertical annular subsection (four-section) heating mode to carry out superfine crystal low-temperature high-speed solution heat treatment on the low-expansion alloy 4J36 precision foil finished product. By adopting an annular sectional (four-section) heating mode, the low-expansion alloy 4J36 precise foil is ensured to be heated uniformly in the heat treatment process, the uniformity of a tissue structure after solution heat treatment is ensured, and the superfine crystal structure size is realized to meet the industrial application requirement.
Preferably, in the solution heat treatment process of the finished product, the heat treatment temperature of the first section and the second section is not higher than 800 ℃, and the heat treatment temperature of the third section and the fourth section is not higher than 920 ℃; the solid solution heat treatment speed is not lower than 35m/min; the rotating speed of the cooling fan is not higher than 1000r/min; the dew point of hydrogen in the furnace is not higher than-75 ℃; the oxygen content in the furnace is not higher than 10ppm.
Further preferably, in the solution heat treatment process of the finished product, the heat treatment temperature of the first section and the second section is 800 ℃, and the heat treatment temperature of the third section and the fourth section is 920 ℃; the solid solution heat treatment speed is 38m/min; the rotating speed of the cooling fan is 800r/min; the dew point of hydrogen in the furnace is-82 ℃; the oxygen content in the furnace was 5ppm.
The metallographic structure schematic diagram of the strip after the heat treatment shown in fig. 4 and the cross section structure of the 4J36 foil finished product after the annealing at 500 times shown in fig. 5 can show that the grain size of the low-expansion alloy 4J36 precise foil after the low-temperature high-speed solution heat treatment reaches below 5 mu m, thereby meeting the terminal etching requirement.
The low-expansion alloy 4J36 precise foil superfine crystal solid solution heat treatment method of the invention subdivides the low-expansion alloy 4J36 precise foil superfine crystal solid solution heat treatment process into: the double-pass large-deformation rolling, intermediate high-temperature low-speed rapid cold-heat treatment process and finished product low-temperature high-speed solid-solution heat treatment process realize the solid-solution heat treatment of the superfine crystal structure with the grain size of less than 5 mu m of the low-expansion alloy 4J36 precise foil and meet the use requirement of precise etching processing in industry through more than 70% deformation and a strict heat treatment process system (including furnace temperature, speed, cooling air quantity, protective atmosphere and the like).
On the other hand, the invention also provides a low-expansion alloy 4J36 precise foil which is treated by adopting the low-expansion alloy 4J36 precise foil superfine crystal solid solution heat treatment method.
Wherein, the thickness of the low expansion alloy 4J36 precise foil is less than or equal to 0.03mm, and the grain size is less than or equal to 5 mu m.
In still another aspect, the invention further provides application of the low-expansion alloy 4J36 precision foil in production of OLED display screens.
Fig. 6 shows a mask product produced by using the low expansion alloy 4J36 precision foil of the present invention, and fig. 7 shows a mesh schematic diagram of the low expansion alloy 4J36 precision foil of the present invention after etching. Through practical detection, the low-expansion alloy 4J36 precise foil material meets the precise etching processing requirement of the OLED display screen industry.
Examples
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention. The experimental methods without specific conditions noted in the following examples follow conventional methods and conditions.
Example 1
(1) Initial rolling of raw materials
The thickness of the initial rolling Cheng Daicai raw material is 0.25mm, the initial rolling target thickness is 0.10mm, the rolling passes are 6 passes, and the rolling technological parameters of each pass are as follows:
(2) Intermediate heat treatment
The temperature 1180 ℃ (1-4 sections), the process speed in the strip furnace is 28m/min, the rotating speed of a cooling fan is 1500r/min, the dew point of hydrogen in the furnace is minus 68 ℃, and the oxygen content in the furnace is: 8ppm.
(3) Rolling of finished products
The target thickness of the finished product is 0.025mm, 6-pass rolling is adopted, and the technological parameters of each rolling pass are as follows:
(4) Heat treatment of finished products
And carrying out superfine crystal low-temperature high-speed solution heat treatment on the low-expansion alloy 4J36 precision foil finished product by adopting a full-hydrogen vertical annular subsection (four-section) heating mode.
The temperature of the 1 st section and the 2 nd section is 800 ℃, the temperature of the 3 rd section and the 4 th section is 820 ℃, the solid solution heat treatment speed is 38m/min, the rotating speed of a cooling fan is 800r/min, the dew point of hydrogen in the furnace is-82 ℃, and the oxygen content in the furnace is as follows: 5ppm.
Performance testing
And (3) detecting the surface micro Vickers hardness of the precise foil, wherein the detection standard is referred to GB/T4340, and the surface micro Vickers hardness reaches HV150.
Conventional tensile test is carried out on the precise foil, the detection standard is referred to as GB/T228.1, the yield strength reaches 242MPa, the tensile strength reaches 538MPa, and the elongation reaches 45%.
And detecting the grain size of the precise foil, wherein the detection standard is GB/T6394-2017, the grain size reaches more than 9 grades, and the grain size reaches 3.5 microns.
Conclusion: the low-expansion alloy 4J36 precise foil material meets the precise etching processing requirement of the OLED display screen industry.
The present invention has been disclosed above in terms of preferred embodiments, but it will be understood by those skilled in the art that these embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to those of the embodiments are considered to be covered by the scope of the claims of the present invention. The scope of the invention should, therefore, be determined with reference to the appended claims.
Claims (6)
1. The superfine crystal solid solution heat treatment method for the low-expansion alloy 4J36 precise foil is characterized by comprising the following steps of: a raw material initial rolling process, an intermediate heat treatment process, a finished product rolling process and a finished product solid solution heat treatment process;
in the initial rolling process of the raw materials, the total deformation of initial rolling is more than or equal to 60 percent, the initial rolling pass is not less than 5 passes, the rolling force is not more than 350KN, and the rolling speed is not more than 300 m/min;
in the intermediate heat treatment process, the furnace temperature is 950-1150 ℃, the process speed in the heat treatment furnace is not lower than 30m/min, the rotating speed of a cooling fan is not higher than 1500r/min, the dew point of hydrogen in the furnace is not higher than-63 ℃, and the oxygen content in the furnace is not higher than 10 ppm;
in the final rolling step, the target thickness of the rolling is 0.03mm or less; the initial rolling total deformation is more than or equal to 75 percent, the initial rolling pass is not lower than 5 passes, the rolling force is not higher than 350KN, and the rolling speed is not higher than 200 m/min;
in the solution heat treatment process of the finished product, the heat treatment temperature of the first section and the second section is not higher than 800 ℃, and the heat treatment temperature of the third section and the fourth section is not higher than 920 ℃; the solid solution heat treatment speed is not lower than 35m/min; the rotating speed of the cooling fan is not higher than 1000r/min; the dew point of hydrogen in the furnace is not higher than-75 ℃; the oxygen content in the furnace is not higher than 10 ppm;
wherein, the grain size of the low expansion alloy 4J36 precise foil is less than or equal to 5 mu m.
2. The method for ultra-fine grain solution heat treatment of low expansion alloy 4J36 precision foil according to claim 1, wherein in the raw material blooming step, the raw material thickness is not more than 0.4 and mm, and the blooming target thickness is 0.1mm.
3. The method for carrying out solution heat treatment on low-expansion alloy 4J36 precision foil superfine crystals according to claim 1, wherein the finished product solution heat treatment process is carried out by adopting an all-hydrogen vertical annular sectional heating mode.
4. A low expansion alloy 4J36 precision foil, characterized in that it is treated by the low expansion alloy 4J36 precision foil superfine crystal solid solution heat treatment method according to any one of claims 1-3.
5. The precision foil of low expansion alloy 4J36 according to claim 4, wherein the precision foil of low expansion alloy 4J36 has a thickness of 0.03-mm and a grain size of 5 μm or less.
6. Use of a low expansion alloy 4J36 precision foil as claimed in any one of claims 4 to 5 for the production of an OLED display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210969703.XA CN115161444B (en) | 2022-08-12 | 2022-08-12 | Low-expansion alloy 4J36 precise foil and superfine crystal solid solution heat treatment method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210969703.XA CN115161444B (en) | 2022-08-12 | 2022-08-12 | Low-expansion alloy 4J36 precise foil and superfine crystal solid solution heat treatment method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115161444A CN115161444A (en) | 2022-10-11 |
| CN115161444B true CN115161444B (en) | 2024-01-19 |
Family
ID=83479198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210969703.XA Active CN115161444B (en) | 2022-08-12 | 2022-08-12 | Low-expansion alloy 4J36 precise foil and superfine crystal solid solution heat treatment method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115161444B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03229892A (en) * | 1990-02-05 | 1991-10-11 | Mitsui Mining & Smelting Co Ltd | Electrolytic invar composite foil |
| JPH04500881A (en) * | 1988-11-15 | 1992-02-13 | ゼニス、エレクトロニクス コーポレーション | Materials and processes for manufacturing cathode ray tube tension masks |
| JPH06179938A (en) * | 1992-12-15 | 1994-06-28 | Toshiba Corp | High strength and low expansion cast iron and production thereof |
| JP2011110601A (en) * | 2009-11-30 | 2011-06-09 | Hitachi Cable Ltd | Joining material, method of manufacturing joining material and semiconductor device, method of manufacturing semiconductor device |
| CN103406352A (en) * | 2013-08-12 | 2013-11-27 | 山西太钢不锈钢股份有限公司 | Heating and rolling method of Ni36 nickel base alloy plate |
| CN105039850A (en) * | 2015-08-11 | 2015-11-11 | 河北钢铁股份有限公司 | High-strength and low-expansion hot-rolled invar alloy |
| CN107119234A (en) * | 2017-05-11 | 2017-09-01 | 东北大学 | A kind of refined crystalline strengthening method of invar alloy band |
| CN107739998A (en) * | 2017-10-16 | 2018-02-27 | 攀钢集团江油长城特殊钢有限公司 | A kind of preparation method of flat cold-rolled sheet |
| CN110629127A (en) * | 2019-11-22 | 2019-12-31 | 东北大学 | Method for manufacturing invar alloy foil |
| CN110947763A (en) * | 2019-11-11 | 2020-04-03 | 中铝国际工程股份有限公司 | Rolling mill production line for rare and refractory metal plate strips and production method thereof |
| KR20200058004A (en) * | 2018-11-19 | 2020-05-27 | 주식회사 포스코 | A MANUFACTURING METHOD OF Fe-Ni ALLOY FOIL HAVING EXCELLENT PLATE-SHAPE |
| WO2021098451A1 (en) * | 2019-11-19 | 2021-05-27 | 江苏中天科技股份有限公司 | Preparation method for coated alloy wire |
| CN112962033A (en) * | 2021-02-01 | 2021-06-15 | 山西太钢不锈钢股份有限公司 | High-strength invar alloy and processing method thereof |
| CN113042527A (en) * | 2021-03-23 | 2021-06-29 | 山西太钢不锈钢精密带钢有限公司 | High-strength high-plasticity extremely-thin precise stainless steel foil and production method thereof |
| CN113604706A (en) * | 2021-07-30 | 2021-11-05 | 北京北冶功能材料有限公司 | Low-density low-expansion high-entropy high-temperature alloy and preparation method thereof |
-
2022
- 2022-08-12 CN CN202210969703.XA patent/CN115161444B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04500881A (en) * | 1988-11-15 | 1992-02-13 | ゼニス、エレクトロニクス コーポレーション | Materials and processes for manufacturing cathode ray tube tension masks |
| JPH03229892A (en) * | 1990-02-05 | 1991-10-11 | Mitsui Mining & Smelting Co Ltd | Electrolytic invar composite foil |
| JPH06179938A (en) * | 1992-12-15 | 1994-06-28 | Toshiba Corp | High strength and low expansion cast iron and production thereof |
| JP2011110601A (en) * | 2009-11-30 | 2011-06-09 | Hitachi Cable Ltd | Joining material, method of manufacturing joining material and semiconductor device, method of manufacturing semiconductor device |
| CN103406352A (en) * | 2013-08-12 | 2013-11-27 | 山西太钢不锈钢股份有限公司 | Heating and rolling method of Ni36 nickel base alloy plate |
| CN105039850A (en) * | 2015-08-11 | 2015-11-11 | 河北钢铁股份有限公司 | High-strength and low-expansion hot-rolled invar alloy |
| CN107119234A (en) * | 2017-05-11 | 2017-09-01 | 东北大学 | A kind of refined crystalline strengthening method of invar alloy band |
| CN107739998A (en) * | 2017-10-16 | 2018-02-27 | 攀钢集团江油长城特殊钢有限公司 | A kind of preparation method of flat cold-rolled sheet |
| KR20200058004A (en) * | 2018-11-19 | 2020-05-27 | 주식회사 포스코 | A MANUFACTURING METHOD OF Fe-Ni ALLOY FOIL HAVING EXCELLENT PLATE-SHAPE |
| CN110947763A (en) * | 2019-11-11 | 2020-04-03 | 中铝国际工程股份有限公司 | Rolling mill production line for rare and refractory metal plate strips and production method thereof |
| WO2021098451A1 (en) * | 2019-11-19 | 2021-05-27 | 江苏中天科技股份有限公司 | Preparation method for coated alloy wire |
| CN110629127A (en) * | 2019-11-22 | 2019-12-31 | 东北大学 | Method for manufacturing invar alloy foil |
| CN112962033A (en) * | 2021-02-01 | 2021-06-15 | 山西太钢不锈钢股份有限公司 | High-strength invar alloy and processing method thereof |
| CN113042527A (en) * | 2021-03-23 | 2021-06-29 | 山西太钢不锈钢精密带钢有限公司 | High-strength high-plasticity extremely-thin precise stainless steel foil and production method thereof |
| CN113604706A (en) * | 2021-07-30 | 2021-11-05 | 北京北冶功能材料有限公司 | Low-density low-expansion high-entropy high-temperature alloy and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 4J36低膨胀合金及其工艺性;佟晓静;中国核科技报告(01);全文 * |
| 中国机械工程学会热处理专业分会编.热处理手册.机械工业出版社,第598-603页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115161444A (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100491000C (en) | Method for calendering pure copper foil | |
| CN103014410B (en) | Copper alloy and fabrication method thereof | |
| CN110684937B (en) | Preparation method of layered double-scale magnesium alloy | |
| CN115161444B (en) | Low-expansion alloy 4J36 precise foil and superfine crystal solid solution heat treatment method and application thereof | |
| CN112195418B (en) | Micro-nanocrystalline maraging stainless steel and preparation method thereof | |
| CN110983213B (en) | Preparation method of high-strength and high-toughness thin-strip aluminum with superfine structure | |
| Lu et al. | Effects of asymmetric rolling process on ridging resistance of ultra-purified 17% Cr ferritic stainless steel | |
| CN111451276A (en) | Preparation method of high-purity Gd/Tb/Dy/Y rare earth metal foil | |
| CN112251684B (en) | Micro-nanocrystalline maraging steel and preparation method thereof | |
| CN112210728B (en) | Ultrahigh-strength nanocrystalline 3Cr9W2MoSi die steel and preparation method thereof | |
| CN112195366B (en) | High-thermal-stability equiaxial nanocrystalline Ti-Zr-Ag alloy and preparation method thereof | |
| CN112342433B (en) | High-thermal-stability equiaxial nanocrystalline Ti-Zr-W alloy and preparation method thereof | |
| CN112342431B (en) | High-thermal-stability equiaxial nanocrystalline Ti6Al4V-Cu alloy and preparation method thereof | |
| CN112251686A (en) | Ultrahigh-strength nanocrystalline 4Cr5MoWSi die steel and preparation method thereof | |
| CN112048688A (en) | Strong-plasticity magnesium alloy and preparation method thereof | |
| KR101773602B1 (en) | Method for improving formability of pure titanium sheet and pure titanium sheet prepared thereby | |
| CN109930077B (en) | Preparation method of inhomogeneous lamellar nanostructure 2205 stainless steel | |
| CN112251638B (en) | High-thermal-stability equiaxial nanocrystalline Ti-Cu alloy and preparation method thereof | |
| CN114309116B (en) | Preparation method of wide ultrathin titanium foil strip | |
| CN112195367B (en) | High-thermal-stability equiaxed nanocrystalline Ti6Al4V-Co alloy and preparation method thereof | |
| CN112195365B (en) | High-thermal-stability equiaxial nanocrystalline Ti-Zr-Fe alloy and preparation method thereof | |
| CN114457222B (en) | Method for improving processability of high-purity tungsten | |
| CN112251645B (en) | High-thermal-stability equiaxial nanocrystalline Ti-Co alloy and preparation method thereof | |
| CN112251637B (en) | High-thermal-stability equiaxial nanocrystalline Ti-Fe alloy and preparation method thereof | |
| CN117488118B (en) | Preparation method of Hastelloy C-276 precise baseband for high-temperature superconductivity and Hastelloy C-276 precise baseband |
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 |