CN114700698A - Processing technology of nickel-based corrosion-resistant alloy strip - Google Patents
Processing technology of nickel-based corrosion-resistant alloy strip Download PDFInfo
- Publication number
- CN114700698A CN114700698A CN202210442469.5A CN202210442469A CN114700698A CN 114700698 A CN114700698 A CN 114700698A CN 202210442469 A CN202210442469 A CN 202210442469A CN 114700698 A CN114700698 A CN 114700698A
- Authority
- CN
- China
- Prior art keywords
- rolling
- nickel
- resistant alloy
- heat treatment
- speed
- 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.)
- Granted
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 53
- 239000000956 alloy Substances 0.000 title claims abstract description 53
- 230000007797 corrosion Effects 0.000 title claims abstract description 43
- 238000005260 corrosion Methods 0.000 title claims abstract description 43
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 37
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 107
- 238000003466 welding Methods 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 44
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 20
- 229910052786 argon Inorganic materials 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000000137 annealing Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 230000005855 radiation Effects 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000010008 shearing Methods 0.000 abstract 1
- 238000005097 cold rolling Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 229910001182 Mo alloy Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004881 precipitation hardening Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The invention belongs to the field of medium plate manufacturing, and particularly relates to a processing technology of a nickel-based corrosion-resistant alloy strip. The method comprises the following steps: selecting materials → welding the plate blank by adopting an argon arc welding mode → rolling in the middle rolling process → heat treatment in the middle rolling process → rolling in the finished product rolling process → heat treatment in the finished product rolling process → straightening and pulling → longitudinal shearing → finished product. The intermediate rolling is designed according to 2 rolling processes, and each rolling process needs 6 passes; after each intermediate rolling process is finished, a vertical furnace is adopted for continuous annealing, and the heat treatment temperature is as follows: the heat treatment speed is 10-15m/min at 1000-1150 ℃; rolling in a finished product rolling process for three passes in total; the thickness of the finished product is 0.2mm, and the width is 595 mm; the tensile strength is more than 830 MPa; the yield strength is more than 460 MPa; the elongation is > 25%. Fills the gap that the market lacks the processing technology of wide nickel-based corrosion-resistant alloy strips at present.
Description
Technical Field
The invention belongs to the field of medium plate manufacturing, and particularly relates to a processing technology of a nickel-based corrosion-resistant alloy strip.
Background
The nickel-base corrosion-resistant alloy is an alloy which takes nickel as a matrix, contains more than 50 percent of nickel, has certain comprehensive properties such as high-temperature strength and the like, can resist oxidation or water and is easy to medium corrosion, and is called as a nickel-base corrosion-resistant alloy. The nickel-based corrosion-resistant alloy has extremely high nickel content and the compound action of various alloy compounds, so the nickel-based corrosion-resistant alloy can be used in corrosion conditions and harsh and complex industrial environments which cannot be applied to stainless steel, such as petroleum, chemical engineering, nuclear power, automobiles, ships, machinery, seawater desalination, medical dentistry and orthopedics, and the like, so the market has great demand, but the processing technology of a wide nickel-based corrosion-resistant alloy strip is lacked at present.
Therefore, the development of a processing technology for the nickel-based corrosion-resistant alloy strip fills up the technical blank, meets the market demand, and becomes a technical problem to be solved by technical personnel in the field.
Disclosure of Invention
Aiming at the defects, the invention provides a processing technology of a nickel-based corrosion-resistant alloy strip, fills the technical blank and meets the market demand.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a processing technology of a nickel-based corrosion-resistant alloy strip comprises the following steps:
s1, selecting materials: the nickel-based corrosion-resistant alloy plate blank is selected as a processing raw material and comprises the following chemical components: c: 0.06 wt%; co: 10-12 wt%; cr: 19.4 wt%; fe: 4.1 wt%; 0.26 wt% of Mn; 0.01 wt% of P; 0.003 wt% of S; 0.02 wt% of Si; 1.6 wt% of Al; 0.007 wt% of B; 0.04 wt% of Zr; 0.2 wt% of Cu; 9-10.5 wt% of Mo; 3.2 wt% of Ti; the balance being Ni; the GH141 alloy is a precipitation hardening type nickel-based wrought superalloy, belongs to a Ni-Cr-Mo system, and 10-12% of Co and 9-10.5% of Mo are added into an alloy mainly containing nickel, so that the alloy obtains a good solid solution strengthening effect. Within the temperature range of 650-950 ℃, the alloy has high tensile and creep strength and good oxidation resistance. As nickel-chromium-molybdenum alloy, the mainly added alloy elements comprise chromium and molybdenum, wherein the chromium has the functions of oxidation resistance and corrosion resistance, and the molybdenum has the function of strengthening, so that the material has good comprehensive performance and can resist various acid corrosion and stress corrosion;
s2, welding the plate blank by adopting an argon arc welding mode; welding current 160-; delaying welding for 1.5-2 s; the flow rate of the protective gas argon on the front surface is 10L/min, and the flow rate of the protective gas argon on the back surface is 5L/min; after welding, the GH141 alloy forms a continuous M23C6 type carbide film on coarse grains in a fusion welding area and a heat affected zone, the film is a crack sensitive area, the larger the welding current is, the larger the welding heat input is, the larger the width of a welding seam and the heat affected zone is, and therefore the crack sensitivity is enhanced. Meanwhile, the low welding current can reduce the tendency of strain aging cracking, so that when welding is carried out, the welding current is reduced as much as possible while the performance of a welding seam is ensured to meet the requirement of subsequent rolling, and further cracking is prevented.
S3, rolling in the middle rolling process: rolling by adopting an American Sendzimir twenty-high roll mill according to the thickness of a target finished product, wherein the thickness of a blank is changed into 0.8-0.51-0.3 mm by adopting middle rolling according to 2 rolling processes; each rolling process requires 6 passes;
a first rolling process: the diameter of the working roll in the middle rolling process is phi 37-42 mm, the material is molybdenum high-speed steel M2, the hardness is 60HRc, and the roughness is Ra0.4-0.45 mu M; deformation amount: 6 to 10 percent; rolling force: 458-792 kN; rolling speed: 15-28 m/min; tension force: 65-81 KN;
and (4) a second rolling process: the diameter of the working roll in the middle rolling process is phi 40-42 mm, the material is molybdenum high-speed steel M2, the hardness is 60HRc, and the roughness is Ra0.4-0.45 mu M; deformation amount: 6 to 10 percent; rolling force: 460 ℃ 725 kN; rolling speed: 17-27 m/min; tension force: 65-100 KN;
the compression ratio of each pass is controlled by controlling the rolling force to control the deformation and the rolling pass, thereby achieving the purposes of rolling thinning and rolling hardening; when the width of the GH141 strip reaches more than 200mm, the cold rolling deformation resistance is increased sharply, and when the thickness of the wide strip is less than or equal to 0.2mm, the processing parameters (cold rolling reduction, pressure and the like) of the GH141 strip are close to the limit value of cold rolling equipment, the control difficulty of the same plate difference, the dimensional precision, the plate shape and the surface quality is further increased, and the deformation of the GH141 strip per pass is strictly controlled to be between 6% and 10% in order to ensure the performance of finished products; the deformation amount of each rolling process is not more than 45 percent; the rolling tension is used for adjusting the model, curling and the like. In order to ensure the plate shape and surface quality of the finished product, the tension needs to be controlled between 60 kN and 80 kN.
The diameter of a middle roller of each of the two rolling passes is phi 22mm, one side of the roller is conical, the length of the cone is 110mm, the material is high-carbon high-chromium steel D2, the hardness is 58HRc, and the roughness is Ra0.3-0.4 mu m;
s4, intermediate rolling heat treatment: after each intermediate rolling process is finished, a vertical furnace is required to be adopted for continuous annealing, the heat treatment of the intermediate rolling process mainly aims at softening the material, the subsequent rolling production is convenient, and the material softening is ensured by relatively high temperature; the higher the heat treatment temperature is, the lower the hardness of the annealed material is, but the high temperature is also accompanied with the growth of crystal grains, so that the extensibility is reduced, and the processability is reduced; the cooling speed can effectively control the grain growth speed, and the higher the cooling speed, the better processing performance can be obtained;
the heat treatment temperature is as follows: the heat treatment speed is 10-15m/min at 1000-1150 ℃; the dew point temperature is: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min; the tensile strength Rm of the GH141 alloy decreases with the increase of temperature, when the temperature is increased to over 1000 ℃, the decrease of the tensile strength increases, the tensile strength tends to be stable after 1100 ℃, and the plasticity increases with the increase of temperature. The elongation A is more than 50% after 1050 ℃, the elongation A is 4.5 times of 950 ℃ at 1100 ℃, the plasticity of the alloy is better and better along with the increase of the temperature after the temperature is more than 1000 ℃, but the phenomenon that the crystal grains grow excessively or the oxidation occurs among the crystal grains in the alloy structure is avoided as much as possible by heating at 1200 ℃. Therefore, the hot working temperature of the GH141 alloy is selected to be between 1000 and 1150 ℃;
s5, rolling in a finished product rolling process: the step is carried out for three passes in total; the diameter of the finished product rolling process working roll is phi 40-42 mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.3-0.4 mu M; a middle roller with diameter of phi 16mm, one side of taper shape, taper length of 100mm, material D2, hardness of 58HRc, roughness of Ra0.32-0.42 μm; the rolling tension is 70-90 kN; the rolling force is 920-1015 kN; the rolling speed is 20-25 m/min;
s6, rolling heat treatment of finished products: adopting a vertical furnace to carry out continuous annealing, wherein the annealing temperature is 1130 ℃, and the annealing speed is 12-15 m/min; dew point temperature: a hydrogen supply line of-100 ℃, a nitrogen supply line of-100 ℃, a cooling area of-100 ℃, a radiation cooler of-81 ℃ and a top roller of-87 ℃; the rotating speed of the cooling fan is 2000 r/min; the heat treatment of the finished product is more focused on the processing performance and the mechanical property of the product, so the annealing temperature and the cooling fan need to be controlled within the ranges to ensure the solid solution performance of the material;
s7, straightening: the uncoiling tension of the withdrawal and straightening machine is 5.4 kN; the winding tension is 5.4 kN; drawing, elongation and deformation of the drawing S-roller set: 0.3-0.41%; braking the S-roll set to have a tension of 19.4 kN; the maximum line speed is 22.0 m/min.
S8, slitting: the winding tension of the slitting machine is 25 GPa; the clearance of the cutter on the cutter roller is 0.02-0.03 mm; the maximum production line speed is 60-100 m/min;
s9, the thickness of the finished product is 0.2mm, and the width is 595 mm; the surface finish is 2B; tensile strength is more than 830 MPa; yield strength >460 MPa; the elongation is > 25%.
The invention has the beneficial effects that:
the invention provides a processing technology of a nickel-based corrosion-resistant alloy strip, wherein the thickness of a finished product is 0.2mm, the width of the finished product is 595mm, and the gap that the market lacks a processing technology of a wide nickel-based corrosion-resistant alloy strip at present is filled. The specific technical effects are as follows:
1) the GH141 alloy is a precipitation hardening type nickel-based wrought superalloy, belongs to a Ni-Cr-Mo system, and is prepared by adding 10-12 wt% of Co and 9-10.5 wt% of Mo into an alloy mainly containing nickel, so that the alloy obtains a good solid solution strengthening effect. Within the range of 650-950 ℃, the alloy has high tensile and creep strength and good oxidation resistance; as nickel-chromium-molybdenum alloy, the mainly added alloy elements comprise chromium and molybdenum, wherein the chromium has the functions of oxidation resistance and corrosion resistance, and the molybdenum has the function of strengthening, so that the material has good comprehensive performance and can resist various acid corrosion and stress corrosion;
2) welding a plate blank in an argon arc welding mode; welding current 160-; delaying welding for 1.5-2 s; the flow rate of the protective gas argon on the front surface is 10L/min, and the flow rate of the protective gas argon on the back surface is 5L/min; after welding, the GH141 alloy forms a continuous M23C6 type carbide film on coarse grains in a welding area and a heat affected area, and the crack sensitivity is enhanced because the larger the welding current is, the larger the input of welding heat is, and the larger the width of a welding seam and the heat affected area is. Meanwhile, the low welding current can reduce the tendency of strain aging cracking, so that when welding is carried out, the welding current is reduced as much as possible while the performance of a welding seam is ensured to meet the requirement of subsequent rolling, and further cracking is prevented.
3) The rolling force is controlled to control the compression ratio of each pass so as to control the deformation and the rolling pass, thereby achieving the purposes of thinning and hardening; when the width of the GH141 strip reaches more than 200mm, the cold rolling deformation resistance is increased sharply, and when the thickness of the wide strip is less than or equal to 0.2mm, the processing parameters (cold rolling reduction, pressure and the like) of the GH141 strip are close to the limit value of cold rolling equipment, the control difficulty of the same plate difference, the dimensional precision, the plate shape and the surface quality is further increased, and the deformation of the GH141 strip per pass is strictly controlled to be between 6% and 10% in order to ensure the performance of finished products; the deformation amount of each rolling process is not more than 45 percent; the rolling tension is used for adjusting the model, curling and the like. In order to ensure the plate shape and surface quality of the finished product, the tension needs to be controlled between 60 kN and 80 kN.
4) Intermediate rolling heat treatment: the heat treatment temperature is as follows: the heat treatment speed is 10-15m/min at 1000-1150 ℃; the dew point temperature is: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min; the intermediate rolling heat treatment mainly aims at softening the material, so that the subsequent rolling production is convenient, and the relatively high temperature is needed to ensure the softening of the material; the higher the heat treatment temperature is, the lower the hardness of the annealed material is, but the high temperature is also accompanied with the growth of crystal grains, so that the extensibility is reduced, and the processability is reduced; the cooling speed can effectively control the growth speed of crystal grains, and the higher the cooling speed, the better processing performance can be obtained. The higher the heat treatment temperature, the lower the hardness of the annealed material, but the higher the temperature, the larger the grains, the lower the elongation properties and the lower the workability. The cooling speed can effectively control the grain growth speed, and the higher the cooling speed, the better processing performance can be obtained.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the processing technology of the nickel-based corrosion-resistant alloy strip comprises the following steps:
s1, selecting materials: in the embodiment, a nickel-based corrosion-resistant alloy plate blank with the thickness of 0.8mm, the width of 610mm and the length of 3900mm is selected as a processing raw material, and the nickel-based corrosion-resistant alloy plate blank comprises the following chemical components:
| element(s) | C | Co | Cr | Fe | Mn |
| Content (wt%) | 0.06 | 12 | 19.4 | 4.1 | 0.26 |
| Element(s) | Ni | P | S | Si | Al |
| Content (wt%) | Surplus | 0.01 | 0.003 | 0.02 | 1.6 |
| Element(s) | B | Zr | Cu | Mo | Ti |
| Content (wt%) | 0.007 | 0.04 | 0.2 | 10.0 | 3.2 |
S2, welding: adopting an argon arc welding mode, wherein the welding current is 167A, the welding speed is 620mm/s, the welding time is delayed by 2s, the front gas flow of the protective gas argon is 10L/min, and the back gas flow is 5L/min;
s3, intermediate rolling and heat treatment: according to the thickness of a target finished product, the intermediate rolling is designed according to 2 rolling courses: a first rolling process: the diameter of the working roll is phi 37.6mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.42 mu M; a middle roller with diameter of 22mm, one side of taper shape, taper length of 110mm, material D2, hardness of 58HRc, roughness of Ra0.36 μm; the process of each pass is shown in the following table:
the heat treatment temperature is 1150 ℃, and the treatment speed is 12 m/min; dew point temperature: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min;
(2) and (4) a second rolling process: the diameter of the working roll is phi 41mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.44 mu M; a middle roller with diameter of 22mm, one side of taper shape, taper length of 110mm, material D2, hardness of 58HRc, roughness of Ra0.38 μm; the process of each pass is shown in the following table:
and (3) heat treatment after the second rolling process: the heat treatment temperature is 1150 ℃, and the heat treatment speed is 12 m/min; dew point temperature: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min.
S4, rolling in a finished product rolling process: the diameter of the working roll is phi 41mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.32 mu M; a middle roller with diameter of phi 16mm, one side of taper shape, taper length of 100mm, material D2, hardness of 58HRc, roughness of Ra0.36 μm; the process of each pass is shown in the following table:
s5, rolling heat treatment of finished products: the heat treatment temperature is 1130 ℃, the heat treatment speed is 13m/min, and the dew point temperature: a hydrogen supply line of-100 ℃, a nitrogen supply line of-100 ℃, a cooling area of-100 ℃, a radiation cooler of-81 ℃ and a top roller of-87 ℃; the rotating speed of the cooling fan is 2000 r/min.
S6, straightening: the uncoiling tension is 5.4 kN; the winding tension is 5.4 kN; drawing, elongation and deformation of the drawing S-roller set: 0.35 percent; braking the S-roll set to have a tension of 19.4 kN; the maximum production line speed is 22.0 m/min;
s7, slitting: the winding tension is 25 GPa; the clearance of the cutter is 0.03 mm; the maximum production line speed is 80 m/min.
S8, the properties and specifications of the finished product are as follows:
example 2:
the processing technology of the nickel-based corrosion-resistant alloy strip comprises the following steps:
s1, selecting materials: in the embodiment, a nickel-based corrosion-resistant alloy plate blank with the thickness of 0.8mm, the width of 610mm and the length of 3900mm is selected as a processing raw material, and the nickel-based corrosion-resistant alloy plate blank comprises the following chemical components:
| element(s) | C | Co | Cr | Fe | Mn |
| Content (wt%) | 0.06 | 12 | 19.4 | 4.1 | 0.26 |
| Element(s) | Ni | P | S | Si | Al |
| Content (wt%) | Surplus | 0.01 | 0.003 | 0.02 | 1.6 |
| Element(s) | B | Zr | Cu | Mo | Ti |
| Content (wt%) | 0.007 | 0.04 | 0.2 | 10.0 | 3.2 |
S2, welding: adopting an argon arc welding mode, wherein the welding current is 165A, the welding speed is 630mm/s, the welding time is delayed by 2s, the front gas flow rate of the protective gas argon is 10L/min, and the back gas flow rate is 5L/min;
s3, intermediate rolling and heat treatment: according to the thickness of a target finished product, the middle rolling is designed according to 2 rolling courses: a first rolling process: the diameter of the working roll is phi 41.6mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.43 mu M; a middle roller with diameter of 22mm, one side of taper shape, taper length of 110mm, material D2, hardness of 58HRc, roughness of Ra0.38 μm; the process of each pass is shown in the following table:
the heat treatment temperature is 1150 ℃, and the treatment speed is 14 m/min; dew point temperature: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min;
(3) and (4) a second rolling process: the diameter of the working roll is phi 42mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.45 mu M;
a middle roller with diameter of 22mm, one side of taper shape, taper length of 110mm, material D2, hardness of 58HRc, roughness of Ra0.40 μm; the process of each pass is shown in the following table:
and (3) heat treatment after the second rolling process: the heat treatment temperature is 1150 ℃, and the heat treatment speed is 15 m/min; dew point temperature: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min.
S4, rolling in a finished product rolling process: the diameter of the working roll is phi 42mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.38 mu M; a middle roller with diameter of phi 16mm, one side of taper shape, taper length of 100mm, material D2, hardness of 58HRc, roughness of Ra0.40 μm; the process of each pass is shown in the following table:
s5, rolling heat treatment of finished products: the heat treatment temperature is 1130 ℃, the heat treatment speed is 15m/min, and the dew point temperature is as follows: a hydrogen supply line of-100 ℃, a nitrogen supply line of-100 ℃, a cooling area of-100 ℃, a radiation cooler of-81 ℃ and a top roller of-87 ℃; the rotating speed of the cooling fan is 2000 r/min.
S6, pulling and straightening: the uncoiling tension is 5.4 kN; the winding tension is 5.4 kN; drawing, elongation and deformation of the drawing S-roller set: 0.36 percent; braking the S-roll set to have a tension of 19.4 kN; the maximum production line speed is 22.0 m/min;
s7, slitting: the winding tension is 25 GPa; the cutter clearance is 0.02 mm; the maximum line speed is 60 m/min.
S8, the properties and specifications of the finished product are as follows:
example 3:
the processing technology of the nickel-based corrosion-resistant alloy strip comprises the following steps:
s1, selecting materials: in the embodiment, a nickel-based corrosion-resistant alloy plate blank with the thickness of 0.8mm, the width of 610mm and the length of 3900mm is selected as a processing raw material, and the nickel-based corrosion-resistant alloy plate blank comprises the following chemical components:
s2, welding: adopting an argon arc welding mode, wherein the welding current is 160A, the welding speed is 610mm/s, the delayed welding time is 1.5s, the front gas flow of the protective gas argon is 10L/min, and the back gas flow is 5L/min;
s3, intermediate rolling and heat treatment: according to the thickness of a target finished product, the intermediate rolling is designed according to 2 rolling courses: a first rolling process: the diameter of the working roll is phi 42mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.4 mu M; a middle roller with diameter of 22mm, one side of taper shape, taper length of 110mm, material D2, hardness of 58HRc, roughness of Ra0.4 μm; the process of each pass is shown in the following table:
the heat treatment temperature is 1150 ℃, and the treatment speed is 15 m/min; dew point temperature: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min;
(4) and (4) a second rolling process: the diameter of the working roll is phi 40mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.4 mu M;
a middle roller with diameter of 22mm, one side of taper shape, taper length of 110mm, material D2, hardness of 58HRc, roughness of Ra0.3 μm; the process of each pass is shown in the following table:
and (3) heat treatment after the second rolling process: the heat treatment temperature is 1150 ℃, and the heat treatment speed is 12 m/min; dew point temperature: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min.
S4, rolling in a finished product rolling process: the diameter of the working roll is phi 40mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.4 mu M; a middle roller with diameter of phi 16mm, one side of taper shape, taper length of 100mm, material D2, hardness of 58HRc, roughness of Ra0.42 μm; the process of each pass is shown in the following table:
s5, finished product rolling heat treatment: the heat treatment temperature is 1130 ℃, the heat treatment speed is 12m/min, and the dew point temperature: a hydrogen supply line of-100 ℃, a nitrogen supply line of-100 ℃, a cooling area of-100 ℃, a radiation cooler of-81 ℃ and a top roller of-87 ℃; the rotating speed of the cooling fan is 2000 r/min.
S6, pulling and straightening: the uncoiling tension is 5.4 kN; the winding tension is 5.4 kN; drawing, elongation and deformation of the drawing S-roller set: 0.4 percent; braking the S-roll set to have a tension of 19.4 kN; the maximum production line speed is 22.0 m/min;
s7, slitting: the winding tension is 25 GPa; the cutter clearance is 0.03 mm; the maximum production line speed is 100 m/min.
S8, the properties and specifications of the finished product are as follows:
although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.
Claims (10)
1. The processing technology of the nickel-based corrosion-resistant alloy strip is characterized by comprising the following steps of: selecting materials → welding the plate blank by argon arc welding → rolling in the middle rolling process → heat treatment in the middle rolling process → rolling in the finished product rolling process → heat treatment in the finished product rolling process → pulling and straightening → slitting → finished product.
2. The process for processing the nickel-based corrosion-resistant alloy strip according to claim 1, wherein the nickel-based corrosion-resistant alloy slab is selected as a processing raw material in S1, and the chemical composition of the nickel-based corrosion-resistant alloy slab is as follows: c: 0.06 wt%; co: 10-12 wt%; cr: 19.4 wt%; fe: 4.1 wt%; 0.26 wt% of Mn; 0.01 wt% of P; 0.003 wt% of S; 0.02 wt% of Si; 1.6 wt% of Al; 0.007 wt% of B; 0.04 wt% of Zr; 0.2 wt% of Cu; 9-10.5 wt% of Mo; 3.2 wt% of Ti; the balance being Ni.
3. The process for processing the nickel-based corrosion-resistant alloy strip according to claim 1, wherein a plate blank is welded in an argon arc welding mode in S2; welding current 160-; delaying welding for 1.5-2 s; the flow rate of the protective gas argon on the front surface is 10L/min, and the flow rate of the protective gas argon on the back surface is 5L/min.
4. The process for processing the nickel-based corrosion-resistant alloy strip according to claim 1, wherein S3 is rolled by an American Sendzimir twenty high roll mill according to the thickness of a target finished product, the intermediate rolling is designed according to 2 rolling passes, and the thickness of a blank is changed from 0.8mm to 0.51mm to 0.3 mm; each rolling process requires 6 passes; the process of 2 rolling passes is as follows:
a first rolling process: the diameter of the working roll in the middle rolling process is phi 37-42 mm, the material is molybdenum high-speed steel M2, the hardness is 60HRc, and the roughness is Ra0.4-0.45 mu M; deformation amount: 6 to 10 percent; rolling force: 458-792 kN; rolling speed: 15-28 m/min; tension force: 65-81 KN;
and (4) a second rolling process: the diameter of the working roll in the middle rolling process is phi 40-42 mm, the material is molybdenum high-speed steel M2, the hardness is 60HRc, and the roughness is Ra0.4-0.45 mu M; deformation amount: 6 to 10 percent; rolling force: 460 ℃ 725 kN; rolling speed: 17-27 m/min; tension force: 65-100 KN;
the diameter of a middle roller of the two rolling passes is phi 22mm, one side of the roller is conical, the length of the cone is 110mm, the material is high-carbon high-chromium steel D2, the hardness is 58HRc, and the roughness is Ra0.3-0.4 mu m.
5. The process of claim 4, wherein in S4, after each intermediate rolling pass, the continuous annealing is performed by using a vertical furnace, and the heat treatment temperature is as follows: the heat treatment speed is 10-15m/min at 1000-1150 ℃; the dew point temperature is: hydrogen supply line-100 ℃, nitrogen supply line-100 ℃, cooling area-95 ℃, radiation cooler-71 ℃ and top roll-75 ℃; the rotating speed of the cooling fan is 2800 r/min.
6. The process of claim 1, wherein the final rolling pass in S5 is performed in a total of three passes; the diameter of the finished product rolling process working roll is phi 40-42 mm, the material is M2, the hardness is 60HRc, and the roughness is Ra0.3-0.4 mu M; a middle roller with diameter of phi 16mm, one side of taper shape, taper length of 100mm, material D2, hardness of 58HRc, roughness of Ra0.32-0.42 μm; the rolling tension is 70-90 kN; the rolling force is 920-1015 kN; the rolling speed is 20-25 m/min.
7. The process for processing the nickel-based corrosion-resistant alloy strip according to claim 1, wherein the product rolling heat treatment in S6 is performed by continuous annealing in a vertical furnace, wherein the annealing temperature is 1130 ℃ and the annealing speed is 12-15 m/min; dew point temperature: a hydrogen supply line of-100 ℃, a nitrogen supply line of-100 ℃, a cooling area of-100 ℃, a radiation cooler of-81 ℃ and a top roller of-87 ℃; the rotating speed of the cooling fan is 2000 r/min.
8. The process for manufacturing the strip made of a nickel-base corrosion-resistant alloy according to claim 1, wherein the uncoiling tension of the tension leveler in S7 is 5.4 kN; the winding tension is 5.4 kN; drawing, elongation and deformation of the drawing S-roller set: 0.3-0.41%; braking the S-roll set to have a tension of 19.4 kN; the maximum line speed is 22.0 m/min.
9. The process for processing the nickel-base corrosion-resistant alloy strip according to claim 1, wherein the rolling tension of a slitting machine in S8 is 25 GPa; the cutter clearance on the cutter roller is 0.02-0.03 mm; the maximum production line speed is 60-100 m/min.
10. The process of claim 1, wherein the feedstock in S1 is a nickel-base corrosion-resistant alloy slab having a thickness of 0.8mm, a width of 610mm, and a length of 3900 mm; the thickness of the finished product in S9 is 0.2mm, and the width is 595 mm; tensile strength is more than 830 MPa; yield strength >460 MPa; the elongation is > 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442469.5A CN114700698B (en) | 2022-04-25 | 2022-04-25 | Processing technology of nickel-based corrosion-resistant alloy strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442469.5A CN114700698B (en) | 2022-04-25 | 2022-04-25 | Processing technology of nickel-based corrosion-resistant alloy strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114700698A true CN114700698A (en) | 2022-07-05 |
| CN114700698B CN114700698B (en) | 2024-03-19 |
Family
ID=82174348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210442469.5A Active CN114700698B (en) | 2022-04-25 | 2022-04-25 | Processing technology of nickel-based corrosion-resistant alloy strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114700698B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861389A (en) * | 2006-06-13 | 2006-11-15 | 无锡市永鑫精密钢带厂 | High precision composite nickel steel band and its prodn. technique |
| CN109112278A (en) * | 2017-06-23 | 2019-01-01 | 宝钢特钢有限公司 | A kind of corrosion resistant alloy UNS S33400 cold-rolled strip manufacturing method, steel band and application |
| CN109371345A (en) * | 2018-11-28 | 2019-02-22 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of preparation process of GH4145 alloy strip steel rolled stock |
| CN109604334A (en) * | 2018-10-31 | 2019-04-12 | 天津冶金集团天材科技发展有限公司 | A kind of cold-rolling process of nickel base superalloy precision steel strip |
| WO2019117756A1 (en) * | 2017-12-14 | 2019-06-20 | Publichnoe aktsionernoe obshchestvo "Severstal" (PAO "Severstal") | Method of manufacturing low-alloyed coiled strip of higher corrosion resistance |
| CN110328233A (en) * | 2019-06-14 | 2019-10-15 | 山西太钢不锈钢精密带钢有限公司 | Metal dome ultra-thin accurate strip production technology |
| CN111607721A (en) * | 2020-05-19 | 2020-09-01 | 金川集团股份有限公司 | Preparation method of GH4169A alloy strip for nuclear power |
| CN112974522A (en) * | 2021-02-22 | 2021-06-18 | 山西太钢不锈钢精密带钢有限公司 | Production method for improving corrosion resistance and reducing pipe breakage rate of precision strip steel for heating pipe |
| US20210277501A1 (en) * | 2020-03-09 | 2021-09-09 | Ati Properties Llc | Corrosion resistant nickel-based alloys |
| CN113714286A (en) * | 2021-08-31 | 2021-11-30 | 西北有色金属研究院 | Preparation method of TA15 titanium alloy thin strip |
-
2022
- 2022-04-25 CN CN202210442469.5A patent/CN114700698B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861389A (en) * | 2006-06-13 | 2006-11-15 | 无锡市永鑫精密钢带厂 | High precision composite nickel steel band and its prodn. technique |
| CN109112278A (en) * | 2017-06-23 | 2019-01-01 | 宝钢特钢有限公司 | A kind of corrosion resistant alloy UNS S33400 cold-rolled strip manufacturing method, steel band and application |
| WO2019117756A1 (en) * | 2017-12-14 | 2019-06-20 | Publichnoe aktsionernoe obshchestvo "Severstal" (PAO "Severstal") | Method of manufacturing low-alloyed coiled strip of higher corrosion resistance |
| CN109604334A (en) * | 2018-10-31 | 2019-04-12 | 天津冶金集团天材科技发展有限公司 | A kind of cold-rolling process of nickel base superalloy precision steel strip |
| CN109371345A (en) * | 2018-11-28 | 2019-02-22 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of preparation process of GH4145 alloy strip steel rolled stock |
| CN110328233A (en) * | 2019-06-14 | 2019-10-15 | 山西太钢不锈钢精密带钢有限公司 | Metal dome ultra-thin accurate strip production technology |
| US20210277501A1 (en) * | 2020-03-09 | 2021-09-09 | Ati Properties Llc | Corrosion resistant nickel-based alloys |
| CN111607721A (en) * | 2020-05-19 | 2020-09-01 | 金川集团股份有限公司 | Preparation method of GH4169A alloy strip for nuclear power |
| CN112974522A (en) * | 2021-02-22 | 2021-06-18 | 山西太钢不锈钢精密带钢有限公司 | Production method for improving corrosion resistance and reducing pipe breakage rate of precision strip steel for heating pipe |
| CN113714286A (en) * | 2021-08-31 | 2021-11-30 | 西北有色金属研究院 | Preparation method of TA15 titanium alloy thin strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114700698B (en) | 2024-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7337207B2 (en) | titanium alloy | |
| KR101280114B1 (en) | Heat-resistant austenitic alloy, heat-resistant pressure-resistant member comprising the alloy, and process for producing the same | |
| EP3587606A1 (en) | Ni-based super heat-resistant alloy and method for manufacturing same | |
| JP3838216B2 (en) | Austenitic stainless steel | |
| CN104611624B (en) | Austenite stainless steel | |
| EP2281908B1 (en) | High-strength ni-base alloy pipe for use in nuclear power plants and process for production thereof | |
| CN104093871B (en) | Heatproof ferrite series stainless steel cold-rolled steel sheet, cold rolling base material ferrite-group stainless steel hot rolled steel plate and manufacture method thereof | |
| JP3758508B2 (en) | Manufacturing method of duplex stainless steel pipe | |
| US20200377987A1 (en) | Method for manufacturing super-refractory nickel-based alloy and super-refractory nickel-based alloy | |
| CN107109602B (en) | Steel sheet for low temperature use having excellent surface finish quality and method for producing same | |
| CN101622368A (en) | Electric resistance welded steel pipe prior to heat treatment and process for manufacturing the same | |
| CN114160604A (en) | Stainless steel seamless pipe and preparation method and application thereof | |
| CN114891994B (en) | Method for controlling rolling grain size of 316H austenitic stainless steel medium plate for nuclear power | |
| KR101230118B1 (en) | Titanium Plate and Method of Manufacturing It | |
| CN100590210C (en) | Technological process for improving twin boundary amount in gamma' precipitation strengthened type ferrous alloy | |
| CN111826549A (en) | High-toughness titanium alloy and method for preparing bar by using same | |
| CN114101372A (en) | High-strength TC18 titanium alloy seamless pipe efficient low-cost preparation method | |
| CN103599926B (en) | A kind of milling method of high alloy heat-resistance stainless steel roll bending | |
| JP2018502213A (en) | Cold rolled high strength low alloy steel | |
| CN114700698A (en) | Processing technology of nickel-based corrosion-resistant alloy strip | |
| JP2932918B2 (en) | Manufacturing method of α + β type titanium alloy extruded material | |
| CN106834826B (en) | A kind of aluminium alloy strips and its manufacturing method | |
| CN106834823B (en) | A kind of aluminium alloy strips | |
| CN116005036A (en) | Medium-strength impact-resistant titanium alloy with yield strength of 800MPa and preparation method of extruded tube of medium-strength impact-resistant titanium alloy | |
| CN102492908A (en) | Manufacturing method for thin Zr4 alloy strip with special structure |
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 |