CN117299802A - Cold rolling and leveling process for N4/N6 pure nickel plate coil - Google Patents
Cold rolling and leveling process for N4/N6 pure nickel plate coil Download PDFInfo
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- CN117299802A CN117299802A CN202311384306.7A CN202311384306A CN117299802A CN 117299802 A CN117299802 A CN 117299802A CN 202311384306 A CN202311384306 A CN 202311384306A CN 117299802 A CN117299802 A CN 117299802A
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005097 cold rolling Methods 0.000 title claims abstract description 28
- 230000002441 reversible effect Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 230000001153 anti-wrinkle effect Effects 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 241000277275 Oncorhynchus mykiss Species 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000137 annealing Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a cold rolling leveling process of an N4/N6 pure nickel plate coil, which is characterized in that an annealed N4/N6 pure nickel plate coil is fed into a cold rolling dry type reversible two-roller leveling machine, the N4/N6 pure nickel plate coil is directly leveled and extended by utilizing a leveling roller on the leveling machine, the stress and the influence are eliminated, the plate surface is leveled, and finally the N4/N6 pure nickel plate coil with the thickness of 0.5-2.0mm, the width of 1100-1250mm and the plate wave height of less than or equal to 7mm is obtained. The plate shape, the size, the surface quality, the mechanical property and the like of the flattened N4/N6 pure nickel plate coil all meet the national standard requirements, the market demand is completely met, the cost is low, the efficiency is high, and the mass production can be realized.
Description
Technical Field
The invention relates to the technical field of nonferrous metal processing and calendaring, in particular to a cold rolling and leveling process of an N4/N6 pure nickel plate coil.
Background
The pure nickel has the characteristics of excellent corrosion resistance, welding performance, processability, magnetostriction, magnetism, high heat conductivity, high conductivity, low gas quantity, low vapor pressure and the like, is widely used for preparing electronic, magnetic films, high-purity reagents, standard samples and the like in chemical industry, machinery, electronics and integrated circuits, is an indispensable important material in modern industry, and plays an extremely important role in national economy, national defense construction, modernization and informatization society.
N4/N6 is a pure nickel plate coil with nickel content of more than 99.5%, N4 is mainly used for manufacturing plates and belts, N6 is mainly used for manufacturing plates, belts, foils, tubes, rods, wires and the like, but the plate surface of the N4/N6 pure nickel plate coil is affected by annealing stress after cold rolling annealing and has different degrees of waves and warpage, the wave shape is more than 20mm, and the requirement of direct use of an end user cannot be met. Therefore, it is necessary to provide a plate flattening process to correct the plate surface, eliminate the influence of annealing stress, and finally obtain the N4/N6 pure nickel plate coil with a flat surface.
Disclosure of Invention
The invention provides a cold rolling flattening process of an N4/N6 pure nickel plate coil, which aims to eliminate the influence of annealing stress, improve the plate type defect of the N4/N6 pure nickel plate coil and enable the mechanical property of the N4/N6 pure nickel plate coil to meet the national standard requirement.
The invention relates to a cold rolling leveling process of an N4/N6 pure nickel plate coil, which is realized by a leveling unit, wherein the leveling unit comprises a leveling machine, the leveling machine comprises leveling rollers which are symmetrically arranged up and down, an upper leveling roller protecting cover and a lower leveling roller protecting cover are respectively arranged on the outer sides of the leveling rollers, an inlet anti-wrinkle roller is arranged at the inlet of the leveling rollers, and an outlet anti-wrinkle roller is arranged at the outlet of the leveling rollers; the front end of the leveling machine is sequentially provided with an inlet double-reel and an inlet uncoiler in a collinear way, an inlet uncoiler outer support is arranged on the outer side of the inlet uncoiler, an inlet threading guide board table is arranged at the high position of the inlet uncoiler, and an inlet pinch roll and an inlet guide roll are symmetrically arranged up and down along the inlet threading guide board table; the rear end of the leveling machine is sequentially provided with an outlet guide plate table, a coiling machine and a belt wrapper in a collinear manner, an outlet pinch roll and an outlet guide roll are symmetrically arranged up and down along the outlet guide plate table, a coiling machine outer support is arranged on the outer side of the coiling machine, and an outlet paper backing machine is arranged above the coiling machine; the cold rolling leveling process comprises the following steps:
step one: lifting the annealed N4/N6 pure nickel plate coil to an inlet saddle of an inlet uncoiler, shearing a strapping tape, then carrying the strapping tape to a mandrel of the inlet uncoiler, centering the pure nickel plate coil on the central line of the inlet uncoiler, and expanding the mandrel of the inlet uncoiler to prepare for coiling;
step two: penetrating a strip head of an N4/N6 pure nickel plate coil into an inlet uncoiler for uncoiling, closing an outer support of the inlet uncoiler, lifting an inlet threading guide plate table, penetrating the inlet guide plate table through an inlet guide roller along the inlet threading guide plate table, conveying an upper leveling roller protecting cover and a lower leveling roller protecting cover to be closed, clicking the inlet uncoiler and the inlet pinch roller, conveying a strip steel head to pass through a leveling roller gap to an outlet pinch roller and an outlet guide roller, continuing clicking the threading guide plate table to convey the strip head into a coiling machine mandrel and a belt wrapper to bite an inlet, then closing the outer support of the coiling machine after coiling the strip steel on the coiling machine for 3-4 circles through full-line linkage, filling paper of an outlet paper backing machine between strip steel layers, and coiling raw material strip steel interlayer paper backing by an inlet double-coil winder;
step three: opening an upper leveling roller protecting cover and a lower leveling roller protecting cover, closing the roller gaps of the leveling rollers, lifting an inlet anti-wrinkle roller and an outlet anti-wrinkle roller to a working position, enabling an operator to align and pad paper into a steel coil, establishing rolling tension of a unit after the roller gaps are completely closed, and normally starting operation;
step four: after finishing leveling, adopting an outlet steel coil trolley to support the outer ring of the steel coil, and inching a coiling machine to coil until the tail part of the strip steel is pressed on the outlet steel coil trolley, contracting a coiling machine core shaft, cutting off paper padding of the outlet paper padding machine, opening an outer support of the coiling machine, unloading the steel coil from the outlet steel coil trolley to a steel coil saddle, and bundling and marking at the position.
Preferably, the thickness of the N4/N6 pure nickel plate coil is 0.5-2.0mm, and the width is 1100-1250mm.
Preferably, the rolling speed of the temper mill is 20-200m/min, the rolling force is 100-500t, the uncoiling tension is 5.0-13.0t, the coiling tension is 5.0-12.0t, the elongation is 0.5-2.0%, and the temper mill is used for carrying out 1-3-pass flattening extension on the N4/N6 pure nickel plate coil.
Preferably, the temper mill is a cold rolling dry reversible two-roll temper mill.
Preferably, the leveling roller is a leveling roller with convexity, the roller surface of the leveling roller is provided with a convex roller-shaped curve which takes the middle part as a convex point and extends towards two ends, and the height difference between the center of the curve and the end parts of the roller surface is 0.08-0.25mm.
Preferably, the diameter of the leveling roller is 730-800mm, and the roughness of the roller surface of the leveling roller is 0.02-0.1 mu m.
Preferably, the upper leveling roller wiper and the lower leveling roller wiper are respectively arranged on the roller surfaces of the leveling rollers.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the cold rolling flattening process for the N4/N6 pure nickel plate coil, the flattening machine is adopted to flatten the annealed N4/N6 pure nickel plate coil, the influence of annealing stress is eliminated, the plate type defect of the N4/N6 pure nickel plate coil is improved, the pure nickel plate coil with flat plate surface and no wave and warpage is obtained, the plate shape, the size, the surface quality and the mechanical property of the pure nickel plate coil all meet the national standard requirements, and the requirement of direct use of subsequent end users is met.
2. The leveling machine adopted by the technology is a cold rolling dry type reversible two-roller leveling machine, the leveling roller on the leveling machine is utilized to directly dry and level and extend the pure nickel plate coil, the leveling effect is good, an upper leveling roller wiper and a lower leveling roller wiper are arranged on the roller surface of the leveling roller, dust and foreign matters adhered to the roller surface of the leveling roller are wiped in real time in the leveling process, so that the cleaning of the leveling roller is ensured, and the surface quality and the smoothness of the pure nickel plate coil after leveling are improved.
3. The leveling roller on the leveling machine used in the process is a leveling roller with convexity, wherein the roller surface of the convexity leveling roller is a convex roller profile curve which takes the middle part as a convex point and extends towards two ends, the height difference between the center of the curve and the end parts of the roller surface is 0.08-0.25mm, and the roller profile of the leveling roller can be selected according to pure nickel plate coils with different thicknesses before leveling, so that the wave-shaped height of the N4/N6 pure nickel plate coil after leveling meets the requirement that the wave-shaped height is less than 10mm specified by industry standard.
4. According to the cold rolling flattening process for the N4/N6 pure nickel plate coil, a large number of tests prove that the rolling speed is 20-200m/min, the rolling force is 100-500t, the uncoiling tension is 5.0-13.0t, the coiling tension is 5.0-12.0t, and the defects of scratch, strip stretching, crease and the like on the surface of the pure nickel plate caused by uncoiling or strip steel ridging wrinkling are avoided.
Drawings
FIG. 1 is a schematic view of a leveling unit roll system of the present invention;
FIG. 2 is a schematic view showing the shape of the hemming portion of the N6 pure nickel plate before flattening in example 1;
FIG. 3 is a schematic view showing the straight edge of the flattened N6 pure nickel plate in example 1;
in the figure: 1-an inlet twin roll machine; 2-an inlet steel coil trolley; 3-inlet decoiler; 4-an inlet uncoiler outer support; 5-entrance threading guide plate table; 6-entry pinch rolls; 7-an inlet guide roller; 8-entry anti-wrinkle roller; 9-upper leveling roll protecting cover; 10-lower leveling roll protecting cover; 11-flattening rollers; 12-outlet anti-wrinkle roller; 13-exit pinch rolls; 14-exit guide rolls; 15-an exit guide plate stage; 16-an outlet paper backing machine; 17-a coiler; 18-outer support of coiling machine; 19-a belt wrapper; 20-an outlet steel coil trolley; 21-upper leveling roll wiper; 22-lower smooth roll wiper; 23-leveling machine.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
the invention relates to a cold rolling flattening process of an N4/N6 pure nickel plate coil, which is realized by a flattening unit, as shown in fig. 1, wherein the flattening unit comprises a flattening machine 23, the flattening machine 23 comprises flattening rollers 11 which are symmetrically arranged up and down, an upper flattening roller wiper 21 and a lower flattening roller wiper 22 are respectively arranged on the roller surface of the flattening rollers 11, an upper flattening roller protecting cover 9 and a lower flattening roller protecting cover 10 are respectively arranged on the outer side of the flattening rollers 11, an inlet anti-wrinkle roller 8 is arranged at the inlet of the flattening rollers 11, and an outlet anti-wrinkle roller 12 is arranged at the outlet of the flattening rollers; the front end of the leveling machine 23 is sequentially provided with an inlet double-winding machine 1 and an inlet uncoiler 3 in a collinear manner, an inlet uncoiler outer support 4 is arranged on the outer side of the inlet uncoiler 3, an inlet threading guide plate table 5 is arranged at the high position of the inlet uncoiler 3, and an inlet pinch roll 6 and an inlet guide roll 7 are symmetrically arranged up and down along the inlet threading guide plate table 5; the rear end of the leveling machine 23 is sequentially provided with an outlet guide plate table 15, a coiling machine 17 and a belt wrapper 19 in a collinear manner, an outlet pinch roll 13 and an outlet guide roll 14 are symmetrically arranged up and down along the outlet guide plate table 15, a coiling machine outer support 18 is arranged outside the coiling machine 17, and an outlet paper backing machine 16 is arranged above the coiling machine 17; the cold rolling leveling process comprises the following steps:
step one: lifting the annealed N4/N6 pure nickel plate coil to an inlet saddle of an inlet uncoiler 3 through a crown block, carrying out bundling strap shearing, conveying the coiled strap to a mandrel of the inlet uncoiler 3 through an inlet steel coil trolley 2, centering, placing the pure nickel plate coil on the central line of the inlet uncoiler 3, and expanding the mandrel of the inlet uncoiler 3 to prepare for coiling;
step two: the method comprises the steps of penetrating the strip heads of N4/N6 pure nickel plate rolls into an inlet uncoiler 3 for uncoiling, closing an inlet uncoiler outer support 4, lifting an inlet threading guide plate table 5, enabling spades at the front ends of the inlet threading guide plate table 5 to extend out, enabling the strip heads to pass through an inlet guide roller 7 along the inlet threading guide plate table 5 and to be fed into an inlet pinch roller 6, closing an upper leveling roller protection cover 9 and a lower leveling roller protection cover 10, clicking the inlet uncoiler 3 and the inlet pinch roller 6, conveying the strip heads to pass through a roller gap of a leveling roller 11 to an outlet pinch roller 13 and an outlet guide roller 14, continuing to click a threading belt, enabling the strip heads to be fed into a mandrel of a coiling machine 17 and a belt wrapper 19 to bite an inlet through an outlet guide plate table 15, then enabling full-line linkage to coil the strip steel on the coiling machine 17 for 3-4 circles, closing a coiling machine outer support 18, enabling paper sheets of an outlet paper backing machine 16 to be padded between the strip steel layers, and enabling the inlet double-coiling machine 1 to coil raw material strip steel interlayer paper.
Step three: the upper leveling roller protective cover 9 and the lower leveling roller protective cover 10 are opened, the roller gaps of the leveling rollers 11 are closed, the inlet anti-wrinkle roller 8 and the outlet anti-wrinkle roller 12 are lifted to a working position, an operator pads the backing paper into a steel coil, a rolling tension is established by a unit after the roller gaps are completely closed, the unit is normally started to operate, dust and foreign matters adhered to the roller surfaces of the leveling rollers are wiped by the upper leveling roller wiper 21 and the lower leveling roller wiper 22 of the leveling rollers 11, so that the cleaning of the leveling rollers 11 is ensured, the surface quality and the smoothness of a pure nickel plate coil after leveling are improved, and the unit levels strip steel at normal rising speed and constant speed. During the process, the adjustment of the temper rolling force and the tension, the inspection of the surface quality of the strip steel and the like can be carried out according to the temper condition of the strip steel. After one pass is finished, determining whether to increase the leveling pass according to the plate defect improvement condition.
Step four: after the flattening is finished, the outer ring of the steel coil is supported by an outlet steel coil trolley 20, a coiling machine 17 is driven to coil until the tail part of the strip steel is pressed on the outlet steel coil trolley 20, a mandrel of the coiling machine 17 is contracted, paper is padded by an outlet paper padding machine 16 is cut off, an outer support 18 of the coiling machine is opened, the outlet steel coil trolley 20 discharges the steel coil and sends the steel coil to a steel coil saddle, and bundling and marking are carried out at the position.
Wherein the leveling machine 23 is a Sundwig cold rolling dry type reversible two-roll leveling machine, the diameter of the leveling roll 11 is 778mm, and the roughness of the roll surface of the leveling roll 11 is 0.02 mu m. The configuration of the leveling roller 11 is selected according to the thickness of the pure nickel plate coil, and the selection standard is shown in table 1:
TABLE 1 selection of Flat roller type
The N4/N6 pure nickel plate coils with different specifications are flattened by using the cold rolling flattening process provided by the application, and the results are shown in Table 2:
TABLE 2 leveling results for N4/N6 pure nickel plate rolls of different gauges
As can be seen from Table 2, the N4/N6 pure nickel plate coil is flattened by using the cold rolling flattening process, the height of the flattened rear wave is less than or equal to 7mm, and the requirement that the wave height is less than 10mm is met by the industry standard. Fig. 2 is a schematic diagram of the flat front wave shape of an annealed N6 pure nickel sheet coil with the specification of 0.8x1180 mm in example 1, the surface of which is visible with obvious waves and warpage, and fig. 3 is a flat rear straight schematic diagram obtained by the flattening process of the present application, the surface of which is flat, no waves and warpage, and the requirement of direct use of the end user is satisfied.
Claims (7)
1. The cold rolling flattening process of the N4/N6 pure nickel plate coil is characterized in that the cold rolling flattening process is realized through a flattening unit, the flattening unit comprises a flattening machine (23), the flattening machine (23) comprises flattening rollers (11) which are symmetrically arranged up and down, an upper flattening roller protecting cover (9) and a lower flattening roller protecting cover (10) are respectively arranged on the outer sides of the flattening rollers (11), an inlet anti-wrinkle roller (8) is arranged at the inlet of the flattening rollers (11), and an outlet anti-wrinkle roller (12) is arranged at the outlet of the flattening rollers; the front end of the leveling machine (23) is sequentially provided with an inlet double-winding machine (1) and an inlet uncoiler (3) in a collinear manner, an inlet uncoiler outer support (4) is arranged on the outer side of the inlet uncoiler (3), an inlet threading guide plate table (5) is arranged at the high position of the inlet uncoiler (3), and an inlet pinch roll (6) and an inlet guide roll (7) are symmetrically arranged up and down along the inlet threading guide plate table (5); the rear end of the leveling machine (23) is sequentially provided with an outlet guide plate table (15), a coiling machine (17) and a belt wrapper (19) in a collinear manner, an outlet pinch roll (13) and an outlet guide roll (14) are symmetrically arranged up and down along the outlet guide plate table (15), a coiling machine outer support (18) is arranged on the outer side of the coiling machine (17), and an outlet paper backing machine (16) is arranged above the coiling machine (17); the cold rolling leveling process comprises the following steps:
step one: lifting the annealed N4/N6 pure nickel plate coil to an inlet saddle of an inlet uncoiler (3), carrying the N4/N6 pure nickel plate coil to a mandrel of the inlet uncoiler (3) after shearing a strapping tape, centering the pure nickel plate coil on a central line of the inlet uncoiler (3), and expanding the mandrel of the inlet uncoiler (3) to prepare for coiling;
step two: the method comprises the steps of penetrating a strip head of an N4/N6 pure nickel plate coil into an inlet uncoiler (3) for uncoiling, closing an inlet uncoiler outer support (4), lifting an inlet threading guide plate table (5), penetrating an inlet guide roller (7) along the inlet threading guide plate table (5) to be fed into an inlet pinch roller (6), closing an upper leveling roller protection cover (9) and a lower leveling roller protection cover (10), clicking the inlet uncoiler (3) and the inlet pinch roller (6), conveying a strip steel head to penetrate through a roller gap of a leveling roller (11) to an outlet pinch roller (13) and an outlet guide roller (14), continuing to click a strip penetrating through an outlet guide plate table (15), feeding the strip head into a mandrel of a coiling machine (17) and a biting inlet of a belt wrapper (19), coiling the strip steel on the coiling machine (17) through full-line linkage, closing an outer support (18) of the coiling machine after coiling 3-4 circles of strip steel, padding paper of an outlet paper padding machine (16) to be padded between strip steel layers, and coiling raw material interlayer paper by the inlet double paper padding machine (1);
step three: opening an upper leveling roller protection cover (9) and a lower leveling roller protection cover (10), closing a roller gap of a leveling roller (11), lifting an inlet anti-wrinkle roller (8) and an outlet anti-wrinkle roller (12) to a working position, enabling an operator to align and pad paper into a steel coil, establishing rolling tension of a unit after the roller gap is completely closed, and normally starting operation;
step four: after finishing leveling, adopting an outlet steel coil trolley (20) to support the outer ring of the steel coil, clicking a coiling machine (17) to coil until the tail part of strip steel is pressed on the outlet steel coil trolley (20), contracting a mandrel of the coiling machine (17), cutting off paper padding of an outlet paper padding machine (16), opening an outer support (18) of the coiling machine, discharging the steel coil from the outlet steel coil trolley (20), conveying the steel coil to a steel coil saddle, and bundling and marking at the position.
2. The cold rolling flattening process of an N4/N6 pure nickel sheet coil as set forth in claim 1, wherein: the thickness of the N4/N6 pure nickel plate coil is 0.5-2.0mm, and the width is 1100-1250mm.
3. The cold rolling flattening process of an N4/N6 pure nickel sheet coil as set forth in claim 1, wherein: the rolling speed of the leveling machine (23) is 20-200m/min, the rolling force is 100-500t, the uncoiling tension is 5.0-13.0t, the coiling tension is 5.0-12.0t, the elongation is 0.5-2.0%, and the leveling machine is used for performing 1-3-pass leveling extension on the N4/N6 pure nickel plate coil.
4. A process for cold rolling and flattening an N4/N6 pure nickel sheet coil as in claim 1 or 3, wherein: the leveling machine (23) is a cold rolling dry type reversible two-roller leveling machine.
5. The cold rolling flattening process of an N4/N6 pure nickel sheet coil in accordance with claim 4, wherein: the leveling roller (11) is a leveling roller with convexity, the roller surface of the leveling roller (11) is provided with a convex roller-shaped curve which takes the middle part as a convex point and extends towards two ends, and the height difference between the center of the curve and the end parts of the roller surface is 0.08-0.25mm.
6. The cold rolling flattening process of an N4/N6 pure nickel sheet coil in accordance with claim 4, wherein: the diameter of the leveling roller (11) is 730-800mm, and the roughness of the roller surface of the leveling roller is 0.02-0.1 mu m.
7. The cold rolling flattening process of an N4/N6 pure nickel sheet coil in accordance with claim 5, wherein: the upper leveling roller wiper (21) and the lower leveling roller wiper (22) are respectively arranged on the roller surface of the leveling roller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311384306.7A CN117299802A (en) | 2023-10-24 | 2023-10-24 | Cold rolling and leveling process for N4/N6 pure nickel plate coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311384306.7A CN117299802A (en) | 2023-10-24 | 2023-10-24 | Cold rolling and leveling process for N4/N6 pure nickel plate coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117299802A true CN117299802A (en) | 2023-12-29 |
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ID=89242584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311384306.7A Pending CN117299802A (en) | 2023-10-24 | 2023-10-24 | Cold rolling and leveling process for N4/N6 pure nickel plate coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117299802A (en) |
-
2023
- 2023-10-24 CN CN202311384306.7A patent/CN117299802A/en active Pending
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