CN110404967A - The manufacturing method of the ultra-thin superhard stainless steel belt of ultra-wide and its steel band of manufacture - Google Patents
The manufacturing method of the ultra-thin superhard stainless steel belt of ultra-wide and its steel band of manufacture Download PDFInfo
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- CN110404967A CN110404967A CN201910639800.0A CN201910639800A CN110404967A CN 110404967 A CN110404967 A CN 110404967A CN 201910639800 A CN201910639800 A CN 201910639800A CN 110404967 A CN110404967 A CN 110404967A
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 69
- 239000010935 stainless steel Substances 0.000 title claims abstract description 69
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 64
- 239000010959 steel Substances 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 238000005096 rolling process Methods 0.000 claims abstract description 163
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 238000000137 annealing Methods 0.000 claims abstract description 19
- 238000003801 milling Methods 0.000 claims abstract description 19
- 238000009966 trimming Methods 0.000 claims description 13
- 238000002791 soaking Methods 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 claims description 4
- 238000005554 pickling Methods 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 4
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 20
- 238000013461 design Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 239000011888 foil Substances 0.000 description 5
- 238000005482 strain hardening Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013211 curve analysis Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Metal Rolling (AREA)
Abstract
The present invention discloses a kind of manufacturing method of ultra-thin superhard stainless steel belt of ultra-wide, wherein comprising steps of executing milling step S1 comprising according to hardness situation of the thin material of a variety of type of stainless steel after rolling, selectes the steel band with suitable stiffness and rolls raw material；Selected steel band rolling raw material is separately designed using multiple wide cut samples with unified specification and implements a variety of rolling process, and calculated relevant rolling parameter, to obtain multiple intermediate rolled products；Intermediate rolled products are subjected to the rolling of finished product rolling process, to obtain the ultra-thin finished product steel belt of wide cut with a variety of rolling thicknesses；And execute heat treatment step S2, wherein the ultra-thin finished product steel belt of wide cut is implemented into stress relief annealing, to obtain the ultra-thin superhard stainless steel belt of ultra-wide, thickness≤0.05mm, width >=500mm, surface hardness >=550 dimensional microstructure formula HV.The present invention also provides a kind of ultra-thin superhard stainless steel belts of ultra-wide manufactured using the above method, and surface quality is good, and performance is uniform and stable.
Description
Technical field
The present invention relates to the manufactures of stainless steel manufacturing technology field more particularly to a kind of ultra-thin superhard stainless steel belt of ultra-wide
Method and a kind of ultra-thin superhard stainless steel belt of ultra-wide manufactured according to above-mentioned manufacturing method.
Background technique
Currently, the product of the China production very thin precision stainless steel foil of thickness≤0.05mm is few, 500mm or more
The ultra-wide of width, the superhard foil of hardness HV550 or more also have no production.International stainless steel foil in the market, Japan, the U.S.
A small number of enterprises can produce thickness≤0.05mm stainless steel belt, but restricted width, can actually produce width in 450mm or less
Stainless steel belt product.Moreover, China also lacks the stainless steel belt milling method of breadth 500mm or more now, with
And the related process of the foil heat treatment of hardness HV550 or more, and also lack the ultra-wide to stainless steel, ultra-thin, superhard foil
Rolling mill practice, the rolling technique may include rolling work hardening curve, rolling pass, the rolling tensile force of the different thin material of steel grade
Deng crucial rolling mill practice and TA heat treatment process.TA heat treatment process is a kind of heat treatment process using stress relief annealing,
Research and production about TA heat treatment process may include generally heating rate, soaking time, heat treatment temperature, cooling rate etc.
Aspect.
Therefore, this field needs a kind of manufacturing method of ultra-thin superhard stainless steel belt of ultra-wide, the steel strip surface of manufacture
Quality is good, and performance is uniform and stable, to meet market needs.
Summary of the invention
For the above-mentioned technical problems in the prior art, it is ultra-thin superhard that the purpose of the present invention is to provide a kind of ultra-wide
The manufacturing method of stainless steel belt, thickness≤0.05mm of the ultra-thin superhard stainless steel belt of ultra-wide of manufacture, width >=
500mm, surface hardness >=550 dimensional microstructure formula HV, according to researching and analysing, the surface matter of the above-mentioned ultra-thin superhard stainless steel belt of ultra-wide
Amount is good, and performance is uniform and stable, can fill up China stainless steel industry blank, meet market needs.The present invention also provides one
The ultra-thin superhard stainless steel belt of ultra-wide that kind is manufactured according to above-mentioned manufacturing method.
It emphasizes herein, it is unless otherwise indicated, the common meaning of various scientific and technical terminologies in terms used herein and this field, each
The meaning of technical term defined in kind technology dictionary, textbook etc. is consistent.
On the one hand, an embodiment according to the present invention, provides a kind of manufacturing method of ultra-thin superhard stainless steel belt of ultra-wide,
In, the manufacturing method comprising steps of
Execute milling step S1, wherein milling step S1 includes:
Step S11, wherein according to hardness situation of the thin material of a variety of type of stainless steel after rolling, selecting has properly firmly
The steel band of degree rolls raw material；
Step S12, wherein raw material is rolled for selected steel band, using multiple wide cut samples with unified specification, is divided
A variety of rolling process are not designed and implemented, and calculate relevant rolling parameter, to obtain multiple intermediate rolled products；And
Step S13, wherein intermediate rolled products are subjected to the rolling of finished product rolling process, there are a variety of rolling thicknesses to obtain
The ultra-thin finished product steel belt of wide cut；And
Execute heat treatment step S2, wherein the ultra-thin finished product steel belt of wide cut is implemented into stress relief annealing, it is ultra-thin to obtain ultra-wide
Superhard stainless steel belt, thickness≤0.05mm, width >=500mm, surface hardness >=550 dimensional microstructure formula HV.
Preferably, during executing milling step S1, four columns, 20 roller reversible milling train can be used and rolled.
In one embodiment, during executing step S11, it can refer to the deflection of the thin material of a variety of type of stainless steel
With firmness change curve, to know hardness situation of the thin material of a variety of type of stainless steel after rolling.
In one embodiment, during executing step S11, can select JDA11 is that steel band rolls raw material, wherein JDA11
Comprising following ingredient, it is calculated in mass percent:
C is 0.1086%, Si 0.9226%, and Mn 0.8049%, P 0.0281%, S 0.0013%, Cr are
16.3766%, Ni 6.6758%.
In one embodiment, during executing step S12, rolling process may include multiple rolling processes, such as may include two
A rolling process or three rolling processes,
Wherein, each rolling process may each comprise milling step and annealing steps, wherein annealing temperature can be 900-1100 DEG C；
Preferably, most of rolling process may also include the step of rolling preceding trimming；
Preferably, wide cut sample can be for 615mm width and with the steel band on cold-rolling pickling surface.
In one embodiment, during executing step S13, when implementing the rolling of finished product rolling process, tension force is in 250-
450N/mm2, roll-force≤500KN；Preferably, roll has diameter phi 20-30mm, and material is molybdenum high speed steel, roughness Ra
It is 0.1-0.25 μm.
In one embodiment, during executing step S2, implementing stress relief annealing may include using to heat up at a slow speed, then
A period of time is kept the temperature, then the cold and air-cooled heat treatment step of furnace.Preferably, heating rate can be 20 DEG C/h, and holding temperature can
It is 300-600 DEG C, soaking time can be 5-10 hours, cool to 120-180 DEG C with the furnace, be air-cooled to room temperature.
In one embodiment, the thickness of the ultra-thin superhard stainless steel belt of ultra-wide can be 0.02-0.05mm, it is therefore preferable to
0.02mm-0.045mm。
In one embodiment, it is ultra-thin to be applicable to manufacture ultra-wide for the manufacturing method as described in any one of previous embodiment
Superhard stainless steel flexible screen materials.
On the other hand, another embodiment according to the present invention provides and a kind of surpasses according to any one of previous embodiment
The ultra-thin superhard stainless steel belt of ultra-wide of the manufacturing method manufacture of the ultra-thin superhard stainless steel belt of width.
The manufacturing method of the ultra-thin superhard stainless steel belt of the ultra-wide provided according to embodiments of the present invention and its ultra-wide of manufacture
Ultra-thin superhard stainless steel belt can have the following beneficial effects:
Thickness≤0.05mm of the ultra-thin superhard stainless steel belt of ultra-wide made according to the present invention, width >=500mm, surface
The surface quality of hardness >=550 dimensional microstructure formula HV, the above-mentioned ultra-thin superhard stainless steel belt of ultra-wide is good, and performance is uniform and stable, can
Fill up China stainless steel industry blank.Particularly, it is ultra-thin to can also be achieved the ultra-wide with 0.02-0.05mm thickness by the present invention
The production of superhard stainless steel belt, the bending fatigue life of the above-mentioned ultra-thin superhard stainless steel belt of ultra-wide can reach 100,000 times, especially
It can meet the needs of flexible screen is to properties such as bendings, meet market needs.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes of the invention one
Point, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute improper limitations of the present invention.Attached
In figure:
Fig. 1 schematically shows the stream of the manufacturing method of the ultra-thin superhard stainless steel belt of ultra-wide according to an embodiment of the invention
Cheng Tu；And
Fig. 2 is schematically shown can in the manufacturing method of the ultra-thin superhard stainless steel belt of ultra-wide according to an embodiment of the invention
The curve graph of the 301 steel series processing hardenings used；And
Fig. 3 is schematically shown can in the manufacturing method of the ultra-thin superhard stainless steel belt of ultra-wide according to an embodiment of the invention
The curve graph of the TA heat treatment process used.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only of the invention
A part of the embodiment, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Below in conjunction with attached drawing, the technical solution provided according to embodiments of the present invention is described in detail.
Referring to Fig. 1, on the one hand, an embodiment according to the present invention provides a kind of system of ultra-thin superhard stainless steel belt of ultra-wide
Make method, wherein the manufacturing method comprising steps of
Execute milling step S1, wherein milling step S1 includes:
Step S11, wherein according to hardness situation of the thin material of a variety of type of stainless steel after rolling, selecting has properly firmly
The steel band of degree rolls raw material；
Step S12, wherein raw material is rolled for selected steel band, using multiple wide cut samples with unified specification, is divided
A variety of rolling process are not designed and implemented, and calculate relevant rolling parameter, to obtain multiple intermediate rolled products；And
Step S13, wherein intermediate rolled products are subjected to the rolling of finished product rolling process, there are a variety of rolling thicknesses to obtain
The ultra-thin finished product steel belt of wide cut；And
Execute heat treatment step S2, wherein the ultra-thin finished product steel belt of wide cut is implemented into stress relief annealing, it is ultra-thin to obtain ultra-wide
Superhard stainless steel belt, thickness≤0.05mm, width >=500mm, surface hardness >=550 dimensional microstructure formula HV.
Preferably, during executing milling step S1, four columns, 20 roller reversible milling train can be used and rolled.It closes
In four columns, 20 roller reversible milling train, unique four columns rack construction is allowed during the rolling process, can be according to coiled material reality
Border situation uses tilt rolling, and the template to ensure coiled material is good, and reduces the fluctuation of the template in the operation of rolling.
In one embodiment, during executing step S11, it can refer to the deflection of the thin material of a variety of type of stainless steel
With firmness change curve, to know hardness situation of the thin material of a variety of type of stainless steel after rolling.
In one embodiment, during executing step S11, can select JDA11 is that steel band rolls raw material, wherein JDA11
Comprising following ingredient, be calculated in mass percent: C 0.1086%, Si 0.9226%, Mn 0.8049%, P are
0.0281%, S 0.0013%, Cr 16.3766%, Ni 6.6758%.
In one embodiment, during executing step S12, rolling process may include multiple rolling processes, such as may include two
The rolling process of a rolling process or three rolling processes or other quantity.Each rolling process may each comprise milling step and annealing steps, wherein annealing
Temperature can be 900-1100 DEG C.Most of rolling process may also include the step of rolling preceding trimming.
Preferably, wide cut sample can be for 615mm width and with the steel band on cold-rolling pickling surface.
In one embodiment, during executing step S13, when implementing the rolling of finished product rolling process, tension is can be controlled in
250-450N/mm2, roll-force≤500KN.Preferably, roll can have diameter phi 20-30mm, and material can be molybdenum high speed steel
(M2), roughness Ra can be 0.1-0.25 μm.
In one embodiment, during executing step S2, implementing stress relief annealing may include using to heat up at a slow speed, then
A period of time is kept the temperature, then the cold and air-cooled heat treatment step of furnace.Preferably, heating rate can be 20 DEG C/h, and holding temperature can
It is 300-600 DEG C, soaking time can be 5-10 hours, cool to 120-180 DEG C with the furnace, be air-cooled to room temperature.
In one embodiment, the thickness of the ultra-thin superhard stainless steel belt of ultra-wide can be 0.02-0.05mm, it is therefore preferable to
0.02mm-0.045mm。
In one embodiment, it is ultra-thin to be applicable to manufacture ultra-wide for the manufacturing method as described in any one of previous embodiment
Superhard stainless steel flexible screen materials.
On the other hand, another embodiment according to the present invention provides and a kind of surpasses according to any one of previous embodiment
The ultra-thin superhard stainless steel belt of ultra-wide of the manufacturing method manufacture of the ultra-thin superhard stainless steel belt of width.
Hereafter the technical solution that an embodiment provides according to the present invention will be described in detail by taking 301 steel series as an example.
Firstly, executing milling step S1.
Rolling mill practice can segment are as follows: work hardening curve analysis, rolling rolling process design in the case of steel grade special composition.It is logical
Selected special material and production technology are crossed, ultra-thin band special rolled can be produced and optimize device structure.
1, wide cut ultra-thin accurate stainless steel belt different material is chosen
1) rolling deformation and work hardening curve of unlike material
Fig. 2 schematically shows the test to typical 301 steel series processing hardening (deflection and firmness change curve)
Analysis, wherein abscissa indicates that the deflection of each steel grade, ordinate indicate the firmness change of each steel grade.
It note that in Fig. 2, curve 1 represents JD301 steel grade, and curve 2 represents 301 steel grades, and curve represents JDA11 steel grade.
The ingredient (representative ingredient) of JD301 steel grade, 301 steel grades and JDA11 steel grade is shown respectively in table 1.
Table 1
| Steel grade | C | Si | Mn | P | S | Cr | Ni |
| JD301 | 0.1157 | 0.7742 | 0.7647 | 0.0308 | 0.0009 | 16.4014 | 6.7403 |
| 301 | 0.1164 | 0.5119 | 0.9515 | 0.0281 | 0.0012 | 16.324 | 7.1567 |
| JDA11 | 0.1086 | 0.9226 | 0.8049 | 0.0281 | 0.0013 | 16.3766 | 6.6758 |
2) selection of wide cut ultra-thin accurate stainless steel belt raw material
Different steel grades and work hardening curve situation are compared, Si constituent content increases, and the processing hardening of coil of strip is bent
Line also increases as.When deflection is gradually increased, the processing hardening of JDA11 steel grade is better than remaining two kinds of steel grade.Therefore,
In the case where identical deflection, the hardness of JDA11 steel grade is more preferable.Thus, it is ultra-thin super for the demand characteristics for meeting superhard material
JDA11 steel grade can be selected in the rolling raw material of hard precision stainless steel belt.
2, the rolling process design of wide cut ultra-thin accurate stainless steel belt
For the performance indexes and template for detecting wide cut ultra-thin accurate steel band, JDA11 steel grade raw material can be used multiple
Sample with following unified specification: 0.4mm × 615mm, surface are 2B (cold-rolling pickling surface) steel band.
The rolling process of the JDA11 steel grade material sample described below for being respectively provided with five kinds of rolling thicknesses designs, wherein 0.02mm
Limit specifications indicate that JDA11 steel grade after the completion of all rollings, has the sample specification of 0.02mm ultrathin；The 0.03mm limit
Specification indicates that JDA11 steel grade after the completion of all rollings, has the sample specification of 0.03mm ultrathin；0.035mm limit gauge
Lattice indicate that JDA11 steel grade after the completion of all rollings, has the sample specification of 0.035mm ultrathin；0.04mm Limit specifications
Indicate that JDA11 steel grade after the completion of all rollings, has the sample specification of 0.04mm ultrathin；0.045mm Limit specifications table
Show that JDA11 steel grade after the completion of all rollings, has the sample specification of 0.045mm ultrathin.
1) 0.02mm Limit specifications: the first rolling process can be rolling to 0.20mm by JDA11 steel grade raw material, and the second rolling process can be by
0.20mm is rolling to 0.10mm, and third rolling process can be rolling to 0.055mm by 0.10mm；Finished product rolling process can be rolling to by 0.055mm
0.02mm.Rolling process design parameter and associated specifications, reference can be made to table 2.
Table 2
| It distinguishes | Raw thickness | Rolling thickness | Deflection | Annealing requires | Other are required |
| First rolling process | 0.40mm | 0.20mm | 50% | 900-1100℃ | Trimming before rolling |
| Second rolling process | 0.20mm | 0.10mm | 50% | 900-1100℃ | |
| Third rolling process | 0.10mm | 0.055mm | 45% | 900-1100℃ | Trimming before rolling |
| Finished product rolling process | 0.055mm | 0.02mm | 63.6% |
2) 0.03mm Limit specifications: the first rolling process can be rolling to 0.20mm by JDA11 steel grade raw material, and the second rolling process can be by
0.20mm is rolling to 0.085mm；Finished product rolling process can be rolling to 0.03mm by 0.085mm.Rolling process design parameter and the relevant technologies
It is required that reference can be made to table 3.
Table 3
| It distinguishes | Raw thickness | Rolling thickness | Deflection | Annealing requires | Other are required |
| First rolling process | 0.40mm | 0.20mm | 50% | 900-1100℃ | Trimming before rolling |
| Second rolling process | 0.20mm | 0.085mm | 57.5% | 900-1100℃ | Trimming before rolling |
| Finished product rolling process | 0.085mm | 0.03mm | 64.7% |
3) 0.035mm Limit specifications: the first rolling process can be rolling to 0.20mm by JDA11 steel grade raw material, and the second rolling process can be by
0.20mm is rolling to 0.10mm；Finished product rolling process can be rolling to 0.035mm by 0.10mm.Rolling process design parameter and the relevant technologies are wanted
It asks, reference can be made to table 4.
Table 4
| It distinguishes | Raw thickness | Rolling thickness | Deflection | Annealing requires | Other are required |
| First rolling process | 0.40mm | 0.20mm | 50% | 900-1100℃ | Trimming before rolling |
| Second rolling process | 0.20mm | 0.10mm | 50% | 900-1100℃ | Trimming before rolling |
| Finished product rolling process | 0.10mm | 0.035mm | 65% |
4) 0.04mm Limit specifications: the first rolling process can be rolling to 0.23mm by JDA11 steel grade raw material, and the second rolling process can be by
0.23mm is rolling to 0.115mm；Finished product rolling process can be rolling to 0.04mm by 0.115mm.Rolling process design parameter and the relevant technologies
It is required that reference can be made to table 5.
Table 5
| It distinguishes | Raw thickness | Rolling thickness | Deflection | Annealing requires | Other are required |
| First rolling process | 0.40mm | 0.23mm | 42.5% | 900-1100℃ | Trimming before rolling |
| Second rolling process | 0.23mm | 0.115mm | 50% | 900-1100℃ | Trimming before rolling |
| Finished product rolling process | 0.115mm | 0.040mm | 65.2% |
5) 0.045mm Limit specifications: the first rolling process can be rolling to 0.23mm by JDA11 steel grade raw material, and the second rolling process can be by
0.23mm is rolling to 0.118mm；Finished product rolling process can be rolling to 0.045mm by 0.118mm.Rolling process design parameter and the relevant technologies
It is required that reference can be made to table 6.
Table 6
| It distinguishes | Raw thickness | Rolling thickness | Deflection | Annealing requires | Other are required |
| First rolling process | 0.40mm | 0.23mm | 42.5% | 900-1100℃ | Trimming before rolling |
| Second rolling process | 0.23mm | 0.118mm | 48.7% | 900-1100℃ | Trimming before rolling |
| Finished product rolling process | 0.118mm | 0.045mm | 61.9% |
3, finished product rolling process rolling mill practice
Finished product rolling process rolling tensile force can be controlled in 250-450N/mm2, roll-force 500KN or less.Roll can be used diameter and adopt
With φ 20-30mm, material can be M2, and roughness Ra can be 0.1-0.25 μm.
Next, executing heat treatment step S2.
1, the TA heat treatment process of wide cut ultra-thin stainless steel can be used: heat up at a slow speed, heat preservation a period of time, furnace is cold and air-cooled
Heat treatment process, as shown in Figure 3.
2, be heat-treated major parameter: heating rate can be 20 DEG C/h, and holding temperature can be 300-600 DEG C, and soaking time can
It is 5-10 hours, cools to 120-180 DEG C with the furnace, be air-cooled to room temperature.
Example one
Below by taking the JDA11 steel grade raw material of 0.02mm Limit specifications as an example, it is described in detail according to an embodiment of the present invention
The manufacturing method of the ultra-thin superhard stainless steel belt of ultra-wide.
0.02mm Limit specifications: the first rolling process can be rolling to 0.20mm by JDA11 steel grade raw material, and the second rolling process can be by
0.20mm is rolling to 0.10mm, and third rolling process can be rolling to 0.055mm by 0.10mm；Finished product rolling process can be rolling to by 0.055mm
0.02mm。
Rolling tensile force can be controlled in 250-450N/mm2, roll-force can be 500KN or less.
After finished product rolling process, TA heat treatment can be carried out, wherein heat treatment temperature can be 500 DEG C, and soaking time can be small for 8
When, it cools to 150 DEG C with the furnace, comes out of the stove and be air-cooled to room temperature.
In short, these above-mentioned embodiments take full advantage of the Work Hardening Characteristic of 301 steel series, 0.02- is optimized
The ultra-wide ultra-thin stainless steel rolling journey of 0.05mm thickness, to TA process of thermal treatment heating rate, soaking time, heat treatment temperature
Degree, cooling rate carry out completely new design and exploration, realize the ultra-thin superhard stainless steel steel of ultra-wide of 0.02mm-0.05mm thickness
The production of band.
Further, the ultra-thin superhard stainless steel belt of ultra-wide manufactured according to above-described embodiment, surface quality is good, performance
Uniform and stable, especially its bending fatigue life can reach 100,000 times, can meet requirement of the flexible screen to multinomial performances such as bendings.
Therefore, the manufacturing method of the ultra-thin superhard stainless steel belt of ultra-wide according to an embodiment of the present invention and its ultra-wide of manufacture
Ultra-thin superhard stainless steel belt is applicable to the manufacture ultra-thin superhard stainless steel flexible screen materials of ultra-wide.Certainly, the present invention does not limit to
In this, it can also be applied to other industries, such as aviation, railway, steamer, kitchen tools, decoration industry etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.
Finally, it should be noted that the above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of manufacturing method of the ultra-thin superhard stainless steel belt of ultra-wide, which is characterized in that comprising steps of
Execute milling step S1, wherein milling step S1 includes:
Step S11, wherein according to hardness situation of the thin material of a variety of type of stainless steel after rolling, select with suitable stiffness
Steel band rolls raw material；
Step S12, wherein set respectively for selected steel band rolling raw material using multiple wide cut samples with unified specification
It counts and implements a variety of rolling process, and calculate relevant rolling parameter, to obtain multiple intermediate rolled products；And
Step S13, wherein intermediate rolled products are subjected to the rolling of finished product rolling process, to obtain the wide cut with a variety of rolling thicknesses
Ultra-thin finished product steel belt；And
Execute heat treatment step S2, wherein the ultra-thin finished product steel belt of wide cut is implemented into stress relief annealing, it is ultra-thin superhard to obtain ultra-wide
Stainless steel belt, thickness≤0.05mm, width >=500mm, surface hardness >=550 dimensional microstructure formula HV.
2. manufacturing method as described in claim 1, which is characterized in that during executing milling step S1, using four columns
20 roller reversible milling trains are rolled.
3. manufacturing method as described in claim 1, which is characterized in that during executing step S11, referring to it is described it is a variety of not
The deflection and firmness change curve of the rust thin material of steel steel grade, to know hardness of the thin material of a variety of type of stainless steel after rolling
Situation.
4. manufacturing method as described in claim 1, which is characterized in that during executing step S11, selecting JDA11 is steel
Band rolling raw material, wherein JDA11 includes following ingredient, is calculated in mass percent:
C is 0.1086%, Si 0.9226%, and Mn 0.8049%, P 0.0281%, S 0.0013%, Cr are
16.3766%, Ni 6.6758%.
5. manufacturing method as described in claim 1, which is characterized in that during executing step S12,
Rolling process includes multiple rolling processes, for example including two rolling processes or three rolling processes,
Wherein, each rolling process includes milling step and annealing steps, wherein annealing temperature is 900-1100 DEG C；
Preferably, most of rolling process further includes the steps that trimming before rolling；
Preferably, wide cut sample is with 615mm width and with the steel band on cold-rolling pickling surface.
6. manufacturing method as described in claim 1, which is characterized in that during executing step S13,
When implementing the rolling of finished product rolling process, tension force is in 250-450N/mm2, roll-force≤500KN；
Preferably, roll has diameter phi 20-30mm, and material is molybdenum high speed steel, and roughness Ra is 0.1-0.25 μm.
7. manufacturing method as described in claim 1, which is characterized in that during executing step S2, implement stress relief annealing
Including then keeping the temperature a period of time, then the cold and air-cooled heat treatment step of furnace using heating up at a slow speed, wherein preferably, heating
Speed is 20 DEG C/h, and holding temperature is 300-600 DEG C, soaking time 5-10 hours, cools to 120-180 DEG C with the furnace, is air-cooled to
Room temperature.
8. manufacturing method as described in claim 1, which is characterized in that the ultra-thin superhard stainless steel belt of ultra-wide with a thickness of
0.02-0.05mm, it is therefore preferable to 0.02mm-0.045mm.
9. such as manufacturing method described in any item of the claim 1 to 8, which is characterized in that it is ultra-thin superhard to be suitable for manufacture ultra-wide
Stainless steel flexible screen materials.
10. a kind of manufacturing method of ultra-thin superhard stainless steel belt of ultra-wide according to any one of claim 1 to 9 manufactures
The ultra-thin superhard stainless steel belt of ultra-wide.
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| CN114210728A (en) * | 2022-02-21 | 2022-03-22 | 山西太钢不锈钢精密带钢有限公司 | Control method for eliminating orange peel print on surface of ultra-flat and ultra-thin precise strip steel with backlight plate |
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Application publication date: 20191105 |