CN109530433A - A kind of Cold Rolling System of stainless steel band - Google Patents
A kind of Cold Rolling System of stainless steel band Download PDFInfo
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- CN109530433A CN109530433A CN201811510003.4A CN201811510003A CN109530433A CN 109530433 A CN109530433 A CN 109530433A CN 201811510003 A CN201811510003 A CN 201811510003A CN 109530433 A CN109530433 A CN 109530433A
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- cold
- rolling mill
- rolling
- stainless steel
- steel band
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 118
- 239000010935 stainless steel Substances 0.000 title claims abstract description 118
- 238000005097 cold rolling Methods 0.000 claims abstract description 359
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 239000000839 emulsion Substances 0.000 claims description 42
- 239000010731 rolling oil Substances 0.000 claims description 13
- 238000011282 treatment Methods 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000004945 emulsification Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims 1
- 238000010924 continuous production Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000005461 lubrication Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910001566 austenite Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005237 degreasing agent Methods 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
-
- 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
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of Cold Rolling Systems of stainless steel band, including feeding device, the entry loop connecting with feeding device, the laser-beam welding machine connecting with entry loop, the first cold-rolling mill connecting with laser-beam welding machine, the second cold-rolling mill connecting with the first cold-rolling mill, the third cold-rolling mill connecting with the second cold-rolling mill, the 4th cold-rolling mill connecting with third cold-rolling mill, the 5th cold-rolling mill connecting with the 4th cold-rolling mill, the 6th cold-rolling mill connecting with the 5th cold-rolling mill, the cleaning machine connecting with the 6th cold-rolling mill, the outlet looping connecting with cleaning machine.Wherein, cold-rolling mill includes working roll, and along the axis direction of the working roll, the internal helicoid of working roll is disposed with pressure sensor, for realizing pressure magnetic control.It is structurally reasonable using the present invention, space is saved, it can be achieved that continuous production, the mechanical property of the finished product after rolling is good, and template is ideal, and thickness range is wide, and up to 0.2~4mm, and roughness is small, and bright in appearance is high-grade.
Description
Technical field
The present invention relates to stainless steel technical field more particularly to a kind of Cold Rolling Systems of stainless steel band.
Background technique
Stainless steel band is the extension of ultra-thin stainless steel plate, mainly meets different each eka-golds of industrial department industrialized production
Belong to or the needs of engineering goods and the narrow and long steel plate of one kind that produces, be widely used in high-tech industry, IT industry and
Aeronautics and Astronautics industry, added value is high, but rolling mill practice is difficult to grasp, because can generate inside stainless steel band after first rolling
Internal stress thus affects the effect that finish rolling comes out, also has larger impact to the forming of finished product, different finished products is to hardness
It is required that it is different, rolling mill practice difficulty is increased again in this way, production efficiency is low, and lumber recovery is not high.
It is common for 0.5-2.0mm moreover, the thickness range for the stainless steel band that the prior art produces is relatively narrow, it can not
Meet requirement of the different manufacture fields to different-thickness stainless steel band.In addition, in addition, the stainless steel band that the prior art produces
Template is not ideal enough, and roughness is larger, causes surface dim, class is not high.And biggish roughness can also influence simultaneously it is stainless
The surface quality of steel band.
Summary of the invention
Technical problem to be solved by the present invention lies in, a kind of Cold Rolling System of stainless steel band is provided, it is structurally reasonable, it saves
, it can be achieved that continuous production, the mechanical property of the finished product after rolling is good in space, and template is ideal, and thickness range is wide, reachable 0.2~
4mm, and roughness is small, bright in appearance is high-grade.
To solve the above-mentioned problems, the Cold Rolling System of a kind of stainless steel band provided by the invention, comprising:
Feeding device, for the stainless steel band blank of 1.0~6.0mm to be carried out upper volume；
The laser-beam welding machine being connect with feeding device, for carrying out laser welding to different volume stainless steel band blanks；
The entry loop being connect with laser-beam welding machine；
The first cold-rolling mill being connect with entry loop, for stainless steel band blank to be carried out the first passage cold rolling；
The second cold-rolling mill being connect with the first cold-rolling mill, for the stainless steel band blank after the first passage cold rolling to be carried out the
Two passage cold rollings；
The third cold-rolling mill being connect with the second cold-rolling mill, for the stainless steel band blank after the second passage cold rolling to be carried out the
Three passage cold rollings；
The 4th cold-rolling mill being connect with third cold-rolling mill, for the stainless steel band blank after third passage cold rolling to be carried out the
Four-pass cold rolling；
The 5th cold-rolling mill being connect with the 4th cold-rolling mill, for the stainless steel band blank after four-pass cold rolling to be carried out the
Five passage cold rollings；
The 6th cold-rolling mill being connect with the 5th cold-rolling mill, for the stainless steel band blank after the 5th passage cold rolling to be carried out the
Six passage cold rollings；
The cleaning machine being connect with the 6th cold-rolling mill, for cleaning the stainless steel band blank after the 6th passage cold rolling；
The outlet looping being connect with cleaning machine；
Wherein, first cold-rolling mill, the second cold-rolling mill, third cold-rolling mill, the 4th cold-rolling mill, the 5th cold-rolling mill and the 6th
Cold-rolling mill includes the working roll for carrying out cold-rolling treatment, and the intermediate calender rolls above or below working roll are set to intermediate calender rolls
Above or below support roller and side support roller set on working roll side；
Along the axis direction of the working roll, the internal helicoid of the working roll is disposed with pressure sensor, uses
Magnetic control is pressed in realizing.
As an improvement of the above scheme, first cold-rolling mill, the second cold-rolling mill, third cold-rolling mill, the 4th cold-rolling mill,
Five cold-rolling mills and the 6th cold-rolling mill arranged in series, for disposably rolling the stainless steel band of different-thickness.
As an improvement of the above scheme, the diameter of the working roll is less than the diameter of intermediate calender rolls, the diameter of the intermediate calender rolls
Less than the diameter of support roller.
As an improvement of the above scheme, the side support roller includes that three collateral supports divide roller, and three collateral supports divide roller
Arrangement triangular in shape；
Wherein, first it is collateral support divide roller be bonded with working roll and be not bonded with intermediate calender rolls, second it is collateral support divide roller and
First collateral support divides roller to be bonded and is not bonded with intermediate calender rolls, the collateral support of third divide roller with first it is collateral support divide roller be bonded and
Roller is divided not to be bonded with second collateral support.
As an improvement of the above scheme, first cold-rolling mill, the second cold-rolling mill, third cold-rolling mill, the 4th cold-rolling mill,
Emulsion feeding device, radial direction of the emulsion feeding device to working roll are equipped in five cold-rolling mills and the 6th cold-rolling mill
Applying emulsion, the emulsion includes 95-98% water and 2-5% ROLLING OIL, and the flow of the emulsion is 2900~
5500L/min。
As an improvement of the above scheme, the viscosity of the ROLLING OIL is 600-800mm2/ s, the pressure of six passage cold rollings
The sum of rate is maximum 70-80%.
As an improvement of the above scheme, the tension of first cold-rolling mill inlet is 240~260KN, and described first is cold
The tension in milling train exit is 490~650KN, and the roll-force of first cold-rolling mill is 9600~9800KN, and described first is cold
The mill speed of milling train is 60~110m/min, and the flow of the emulsion of first cold-rolling mill is 3100~4200L/min；
Tension at second outlet of cold-rolling mill is 440~700KN, and the roll-force of second cold-rolling mill is 10000
~11000KN, the mill speed of second cold-rolling mill are 80~150m/min, the flow of the emulsion of second cold-rolling mill
For 3000~4100L/min；
Tension at the third outlet of cold-rolling mill is 390~650KN, the roll-force of the third cold-rolling mill is 9400~
The mill speed of 9600KN, the third cold-rolling mill are 90~220m/min, and the flow of the emulsion of the third cold-rolling mill is
3200~4300L/min；
Tension at 4th outlet of cold-rolling mill is 340~600KN, the roll-force of the 4th cold-rolling mill is 9100~
The mill speed of 9350KN, the 4th cold-rolling mill are 110~280m/min, and the flow of the emulsion of the 4th cold-rolling mill is
2900~4000L/min；
Tension at 5th outlet of cold-rolling mill is 310~560KN, the roll-force of the 5th cold-rolling mill is 8900~
The mill speed of 9100KN, the 5th cold-rolling mill are 120~310m/min, and the flow of the emulsion of the 5th cold-rolling mill is
3300~4400L/min；
Tension at 6th outlet of cold-rolling mill is 230~500KN, the roll-force of the 6th cold-rolling mill is 8700~
The mill speed of 9000KN, the 6th cold-rolling mill are 130~400m/min, and the flow of the emulsion of the 6th cold-rolling mill is
3250~4350L/min.
As an improvement of the above scheme, the entry loop and outlet looping are at least six layers of big loop, described at least six
The big loop of layer is arranged along vertical direction；
The tension of the entry loop is 40~50KN, and the tension of the outlet looping is 20~50KN.
As an improvement of the above scheme, first cold-rolling mill, the second cold-rolling mill, third cold-rolling mill, the 4th cold-rolling mill,
Automatic thickness control system and plate form control system are equipped in five cold-rolling mills and the 6th cold-rolling mill, for controlling the thickness of stainless steel band
Degree and template.
As an improvement of the above scheme, the composition by weight percent of the stainless steel band finished product are as follows:
C 0.01~0.05%, Ni 6.0~9.5%, Cr 16.5~20.0%, Mn 0.1~3.0%, Cu 0.01~
0.2%, Si 0.15~1.0%, P 0.01~0.2%, S 0.01-0.1%, N 0.02~0.15%, remaining is Fe and can not
Avoid impurity.
The invention has the following beneficial effects:
A kind of Cold Rolling System of stainless steel band provided by the invention, including feeding device, entry loop, laser-beam welding machine,
First cold-rolling mill, the second cold-rolling mill, third cold-rolling mill, the 4th cold-rolling mill, the 5th cold-rolling mill, the 6th cold-rolling mill, cleaning machine and go out
Mouth loop, equipment is less, structurally reasonable, saves space, it can be achieved that production is carried out continuously, high production efficiency is specific as follows:
(1) Cold Rolling System of the present invention can stainless steel band blank to 1.0~6.0mm carry out cold-rolling treatment, at the cold rolling
Reason is six tandem rolling of fully continuous type stainless steel, and high production efficiency, lumber recovery is high, and ton steel production cost is low, has highly efficient and productive, section
The advantages that energy, environmental protection.
(2) cold-rolling process of the present invention is six tandem rollings of fully continuous type, and centre is without interspersed annealing process, by being precisely controlled
The technological parameter of six passage cold rollings eliminates the internal stress generated after first rolling, improves the mechanical property of finished product, and obtain thickness
For 0.2~4mm, and the stainless steel band finished product with 2B mirror effect, bright in appearance is high-grade, and thickness range is wide, meet it is different plus
Demand of industrial and commercial bank's industry to different-thickness stainless steel band.
(3) stainless steel band finished product mechanical property of the present invention is good, yield strength 300-350MPa, tensile strength 700-
750MPa, extensibility 50-70%, hardness 160-180HV.
(4) cold-rolling process of the present invention is disposed with pressure in the internal helicoid of working roll along the axis direction of working roll
Force snesor obtains good template for realizing pressure magnetic control.
(5) present invention is by the viscosity of matching ROLLING OIL and the reduction ratio of six passage cold rollings, by reducing ROLLING OIL
Viscosity, improve the reduction ratio of cold rolling, to reduce oil film thickness, avoid stainless steel from rolling rear surface plasticity and be roughened phenomenon,
The surface roughness for reducing stainless steel band, to obtain good appearance and higher surface quality.
(6) cold-rolling process of the present invention is equipped with laser-beam welding machine, it is ensured that the quality and speed of welding of welding, in favor of producing
The continuous production of line and the lumber recovery for improving steel band.
(7) entrance and exit of the present invention is respectively equipped with entry loop and outlet looping, which is six layers of big loop, can be with
Production space is greatlyd save, and guarantees that unit is worked continuously, realizes being carried out continuously for production.
Detailed description of the invention
Fig. 1 is the schematic diagram of the Cold Rolling System of stainless steel band of the present invention；
Fig. 2 is the schematic diagram of six cold-rolling mills of the invention；
Fig. 3 is the schematic diagram of the first cold-rolling mill of the invention；
Fig. 4 is the working state schematic representation of emulsion of the present invention；
Fig. 5 is the schematic diagram of working roll of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention will be made below further detailed
Description.
As shown in Figure 1, a kind of Cold Rolling System of stainless steel band provided by the invention, comprising:
Feeding device 1, for the stainless steel band blank of 1.0~6.0mm to be carried out upper volume；
The laser-beam welding machine 2 being connect with feeding device 1, for carrying out laser welding to different volume stainless steel band blanks；
The entry loop 3 being connect with laser-beam welding machine 2；
The first cold-rolling mill 4 being connect with entry loop 3, for stainless steel band blank to be carried out the first passage cold rolling；
The second cold-rolling mill 5 being connect with the first cold-rolling mill 4, for carrying out the stainless steel band blank after the first passage cold rolling
Second passage cold rolling；
The third cold-rolling mill 6 being connect with the second cold-rolling mill 5, for carrying out the stainless steel band blank after the second passage cold rolling
Third passage cold rolling；
The 4th cold-rolling mill 7 being connect with third cold-rolling mill 6, for carrying out the stainless steel band blank after third passage cold rolling
Four-pass cold rolling；
The 5th cold-rolling mill 8 being connect with the 4th cold-rolling mill 7, for carrying out the stainless steel band blank after four-pass cold rolling
5th passage cold rolling；
The 6th cold-rolling mill 9 being connect with the 5th cold-rolling mill 8, for carrying out the stainless steel band blank after the 5th passage cold rolling
6th passage cold rolling；
The cleaning machine 10 connecting with the 6th cold-rolling mill 9 is clear for carrying out the stainless steel band blank after the 6th passage cold rolling
It washes；
The outlet looping 11 being connect with cleaning machine 10；
Stainless steel band blank carries out the input of material by feeding device 1, laser-beam welding machine 2, entry loop 3, by the
One cold-rolling mill 4, the second cold-rolling mill 5, third cold-rolling mill 6, the 4th cold-rolling mill 7, the 5th cold-rolling mill 8, the 6th cold-rolling mill 9, cleaning machine
10 carry out cold-rolling treatments, and are exported by outlet looping 11, then dried, cleaned, being annealed, is electrolysed, pickling, straightening it is smooth,
Obtain the stainless steel band finished product with a thickness of 0.2~4mm.
First cold-rolling mill 4, the second cold-rolling mill 5, third cold-rolling mill 6, the 4th cold-rolling mill 7, the 5th cold-rolling mill 8 and the 6th
9 arranged in series of cold-rolling mill, for disposably rolling the stainless steel band of different-thickness.
In conjunction with Fig. 1, the entry loop 3 is at least six layers of big loop, and at least six layers big loop is along vertical direction
Arrangement, effect is to store and keep certain strip amount in unit running process, to guarantee the strip operation speed of process section
Degree.Entry loop maintains enough loop amounts to put set when entrance equipment runs slowly or shuts down when unit operates normally,
Guarantee that the process section speed of service is constant.
Outlet looping 11 is at least six layers of big loop, and at least six layers big loop is arranged along vertical direction, and outlet is lived
Set is arranged in the outlet of unit, and effect is that certain loop strip amount is stored in batching stopping process, to guarantee milling train section
Strip speed.Outlet looping maintains seldom loop amount when unit operates normally.
Therefore, the entry loop 3 and outlet looping 11 improve the space utilization rate of workshop, moreover, guaranteeing machine
Group is worked continuously, and realizes being carried out continuously for production.The tension of the entry loop 3 is 40~50KN, the outlet looping 11
Tension is 20~50KN, it is ensured that stainless steel band stablizes transmission.
As shown in Figures 2 and 3, first cold-rolling mill 4, the second cold-rolling mill 5, third cold-rolling mill 6, the 4th cold-rolling mill 7,
Five cold-rolling mills 8 and the 6th cold-rolling mill 9 include the working roll for carrying out cold-rolling treatment, above or below working roll in
Between roller, the support roller above or below intermediate calender rolls and the side support roller set on working roll side.It is with the first cold-rolling mill 4
Example comprising for carrying out the working roll 41 of cold-rolling treatment, intermediate calender rolls 42 above or below working roll 41 are set to centre
Support roller 43 above or below roller 42 and the side support roller 44 set on 41 side of working roll.Preferably, the working roll 41
Diameter be less than the diameters of intermediate calender rolls 42, the diameters of the intermediate calender rolls 42 is less than the diameter of support roller 43.Side support roller 44 it is straight
Diameter is close with working roll 41, it is ensured that the cold rolling effect of cold-rolling mill improves reduction ratio, and guarantees the stabilization in cold-rolled process
Property.
The side support roller 44 includes that three collateral supports divide roller, and three collateral supports divide roller arrangement triangular in shape；Wherein,
First collateral support divides roller 44A to be bonded with working roll 41 and be not bonded with intermediate calender rolls 42, and second collateral support divides roller 44B and first
A collateral support divides roller 44A to be bonded and is not bonded with intermediate calender rolls 42, and the collateral support of third divides roller 44C and first collateral support to divide roller
44A is bonded and divides roller 44B not to be bonded with second collateral support.The structure of this side support roller designs, and can both guarantee good branch
Support effect, it is also ensured that the uniformity of oil distribution is rolled in cold-rolled process.
In order to obtain good lubricant effect, guarantee system steady operation, first cold-rolling mill 4, the second cold-rolling mill 5,
Emulsion feeding device, the emulsification are equipped in third cold-rolling mill 6, the 4th cold-rolling mill 7, the 5th cold-rolling mill 8 and the 6th cold-rolling mill 9
Liquid feeding device applies emulsion to the radial direction of working roll, and the emulsion includes 95-98% water and 2-5% ROLLING OIL,
The flow of the emulsion is 2900~5500L/min.
Preferably, the emulsion includes 97% water and 3% ROLLING OIL, and the emulsion of this concentration cooperates in cold-rolled process
Mill speed and the thickness of stainless steel are poor, have good lubrication and cooling effect, and guarantee that lubrication and cooling are uniformly abundant, realize
Equalized temperature in cold-rolled process improves the stability of system, reduces device fails probability.
As shown in figure 4, ROLLING OIL enters from the gap between working roll 41, then from working roll 41 and side support roller 44 it
Between gap outflow, intermediate calender rolls 42 are lubricated, the gap between intermediate calender rolls 42 and support roller 43 is entered back into, thus realize pair
The whole lubrication of cold-rolling mill, and guarantee the adequacy and uniformity of its lubrication.
As the present invention more preferably embodiment, in the cold-rolled process of six passages, the viscosity of the ROLLING OIL is 600-
800mm2/s.The sum of reduction ratio of six passage cold rollings is maximum 70-80%.The temperature of the emulsion is 43~55 DEG C.
The present invention is by the viscosity of matching ROLLING OIL and the reduction ratio of six passage cold rollings, by reducing the viscous of ROLLING OIL
Degree, improves the reduction ratio of cold rolling, while matching the temperature of emulsion, to reduce oil film thickness, stainless steel is avoided to roll rear surface modeling
Property is roughened phenomenon, the surface roughness of stainless steel band is reduced, to obtain good appearance and higher surface
Quality.The reduction ratio of viscosity and six passage cold rollings through overmatching ROLLING OIL, the roughness of stainless steel band finished product of the present invention
Down to 0.15-0.25 μm.
As shown in figure 5, along the axis direction of the working roll 41, the internal helicoid of the working roll is disposed with pressure
Force snesor 45, for realizing pressure magnetic control.By the pressure sensor pressure feedback of helical arrangement, closed-loop control is realized, from
And the template that can carry out comprehensive no dead angle to stainless steel band in real time monitors, and then adjusts the technological parameter of cold-rolled process,
Guarantee to obtain good template.
Further, the present invention passes through six tandem rollings of fully continuous type, and centre is precisely controlled six passages without interspersed annealing process
The technological parameter of cold rolling eliminates the internal stress generated after first rolling, improves the mechanical property of finished product, specific as follows:
(A) the stainless steel band blank after laser welding is subjected to the first passage cold rolling by the first cold-rolling mill 4；
The tension of first cold-rolling mill inlet is 240~260KN, and the tension at first outlet of cold-rolling mill is
490~650KN, the roll-force of first cold-rolling mill are 9600~9800KN, and the mill speed of first cold-rolling mill is 60
~110m/min, the flow of the emulsion of first cold-rolling mill are 3100~4200L/min.
First cold-rolling mill inlet and exit use lesser tension, also use in the first passage cold rolling lower
Roll-force and lower mill speed, to stainless steel band blank carry out first time cold-rolling treatment.It is cold to realize the first passage
The reduction ratio rolled is 25-33%, not only can achieve preferable pushing effect, but also avoid making since the first percentage pass reduction is larger
At rise roll difficulty.Moreover, the flow of the emulsion of the first passage cold rolling is 3100~4200L/min, for matching first
The mill speed and reduction ratio of secondary cold rolling realize good lubrication and control equalized temperature.
(B) the stainless steel band blank after the first passage cold rolling is subjected to the second passage cold rolling by the second cold-rolling mill 5；
Tension at second outlet of cold-rolling mill is 440~700KN, and the roll-force of second cold-rolling mill is 10000
~11000KN, the mill speed of second cold-rolling mill are 80~150m/min, the flow of the emulsion of second cold-rolling mill
For 3000~4100L/min.The reduction ratio of second passage cold rolling is 30-35%.
The second passage cold rolling that second cold-rolling mill carries out is molding crucial place, in six passage cold-rolled process,
Which employs the mill speeds that maximum roll-force and second are slow, answer in generation inside stainless steel band after first can rolling
Power removal 60%, effectively improves the template of stainless steel band, improves hardness, improve the mechanical property of stainless steel band.Second
The flow of the emulsion of secondary cold rolling is 3000~4100L/min, for matching the mill speed and reduction ratio of the second passage cold rolling,
Realize good lubrication and control equalized temperature.
(C) the stainless steel band blank after the second passage cold rolling is subjected to the cold rolling of third passage by third cold-rolling mill 6；
Tension at the third outlet of cold-rolling mill is 390~650KN, the roll-force of the third cold-rolling mill is 9400~
The mill speed of 9600KN, the third cold-rolling mill are 90~220m/min, and the flow of the emulsion of the third cold-rolling mill is
3200~4300L/min.The reduction ratio of third passage cold rolling can cooperate the reduction ratio of the 4th-six passage and set.Third road
The flow of the emulsion of secondary cold rolling is 3200~4300L/min, for matching the mill speed and reduction ratio of third passage cold rolling,
Realize good lubrication and control equalized temperature.
(D) the stainless steel band blank after third passage cold rolling is subjected to four-pass cold rolling by the 4th cold-rolling mill 7；
Tension at 4th outlet of cold-rolling mill is 340~600KN, the roll-force of the 4th cold-rolling mill is 9100~
The mill speed of 9350KN, the 4th cold-rolling mill are 110~280m/min, and the flow of the emulsion of the 4th cold-rolling mill is
2900~4000L/min.The reduction ratio of four-pass cold rolling can cooperate the reduction ratio of third and five-six passages and set.The
The flow of the emulsion of four-pass cold rolling is 2900~4000L/min, for matching the mill speed and pressure of four-pass cold rolling
Lower rate realizes good lubrication and control equalized temperature.
(E) the stainless steel band blank after four-pass cold rolling is subjected to the 5th passage cold rolling by the 5th cold-rolling mill 8；
Tension at 5th outlet of cold-rolling mill is 310~560KN, the roll-force of the 5th cold-rolling mill is 8900~
The mill speed of 9100KN, the 5th cold-rolling mill are 120~310m/min, and the flow of the emulsion of the 5th cold-rolling mill is
3300~4400L/min.The reduction ratio of 5th passage cold rolling can cooperate the reduction ratio of the passage of third, the 4th and the 6th and set
It is fixed.The flow of the emulsion of 5th passage cold rolling is 3300~4400L/min, for matching the mill speed of the 5th passage cold rolling
And reduction ratio, realize good lubrication and control equalized temperature.
(F) the stainless steel band blank after the 5th passage cold rolling is subjected to the 6th passage cold rolling by the 6th cold-rolling mill 9；
Tension at 6th outlet of cold-rolling mill is 230~500KN, the roll-force of the 6th cold-rolling mill is 8700~
The mill speed of 9000KN, the 6th cold-rolling mill are 130~400m/min, and the flow of the emulsion of the 6th cold-rolling mill is
3250~4350L/min.The reduction ratio of 6th passage cold rolling can cooperate the reduction ratio of the passage of third, the 4th and the 5th and set
It is fixed.The flow of the emulsion of 6th passage cold rolling is 3250~4350L/min, for matching the mill speed of the 6th passage cold rolling
And reduction ratio, realize good lubrication and control equalized temperature.
It is cold that the third cold-rolling mill, the 4th cold-rolling mill, the 5th cold-rolling mill and the 6th cold-rolling mill have carried out third passage respectively
It rolls, four-pass cold rolling, the 5th passage cold rolling, the 6th passage cold rolling, wherein the cold rolling of third passage, four-pass cold rolling, the 5th
Passage cold rolling, the 6th passage cold rolling gradually reduce tension, also reduce roll-force, and simultaneously improve mill speed, thus
The internal stress generated inside stainless steel band is completely removed by several times.The sum of reduction ratio by six passage cold rollings is maximum 70-
80%.
Above-mentioned first cold-rolling mill, the second cold-rolling mill, third cold-rolling mill, the 4th cold-rolling mill, the 5th cold-rolling mill and the 6th cold rolling
Machine arranged in series, for disposably rolling the stainless steel band of different-thickness.First cold-rolling mill, the second cold-rolling mill, third cold-rolling mill,
4th cold-rolling mill, the 5th cold-rolling mill and the 6th cold-rolling mill realize six tandem rolling of fully continuous type, and centre passes through without interspersed annealing process
It is precisely controlled the technological parameter of six passage cold rollings, the internal stress generated after first rolling is eliminated, improves the mechanical property of finished product, and
It obtains with a thickness of 0.2~4mm, and the stainless steel band finished product with 2B mirror effect, appearance is high-grade, and thickness range is wide, meets not
Demand of the same industry to different-thickness stainless steel band.Moreover, six continuous rolling process of fully continuous type of the present invention, high production efficiency are become a useful person
Rate is high, and ton steel production cost is low, has many advantages, such as highly efficient and productive, energy-saving and environmental protection.
Further, first cold-rolling mill 4, the second cold-rolling mill 5, third cold-rolling mill 6, the 4th cold-rolling mill 7, the 5th cold-rolling mill
8 and the 6th are equipped with automatic thickness control system and plate form control system in cold-rolling mill 9, for controlling the thickness and plate of stainless steel band
Type.
The cleaning machine 10 includes hairbrush, and uses hairbrush in 80 degree or so of temperature using the degreasing agent of dedicated alkalinity
Scrub washes dirt for remove surface.
Stainless steel band blank carries out the input of material by feeding device 1, entry loop 3, by laser-beam welding machine 2, the
One cold-rolling mill 4, the second cold-rolling mill 5, third cold-rolling mill 6, the 4th cold-rolling mill 7, the 5th cold-rolling mill 8, the 6th cold-rolling mill 9, cleaning machine
10 carry out cold-rolling treatments, and are exported by outlet looping 11, then dried, cleaned, being annealed, is electrolysed, pickling, straightening it is smooth,
Obtain the stainless steel band finished product with a thickness of 0.2~4mm.
The composition by weight percent of the stainless steel band finished product are as follows:
C 0.01~0.05%, Ni 6.0~9.5%, Cr 16.5~20.0%, Mn 0.1~3.0%, Cu 0.01~
0.2%, Si 0.15~1.0%, P 0.01~0.2%, S 0.01-0.1%, N 0.02~0.15%, remaining is Fe and can not
Avoid impurity.
Specifically, C 0.01~0.05% and Si 0.15~1.0%, can promote austenite to be formed, and stable austenite
Tissue, while the intensity of stainless steel can be improved, and obtain good forming property, it is suitble to cold-rolling process to carry out.Arrange in pairs or groups Mn again
0.1~3.0% and Ni 6.0~9.5% can improve the mechanical property of stainless steel band with stable austenite, furthermore, it is possible to improve
The forming property of stainless steel band is suitble to cold-rolling process to carry out, and lays the foundation for the subsequent good version type of acquisition.Contain Cr 16.5
~20.0%, so that the stainless steel band is obtained good corrosion resistance.Containing N 0.02~0.15%, can with stable austenite,
Be conducive to improve the intensity and corrosion resistance of stainless steel band simultaneously.Cu 0.01~0.2% can reduce austenite phase fault
Can, improve the plasticity and forming property of stainless steel band.
Preferably, the composition by weight percent of the stainless steel band finished product as made from above-mentioned Cold Rolling System are as follows:
C 0.03~0.04%, Ni 7.0~9.0%, Cr 17.5~19.0%, Mn 0.5~2.0%, Cu 0.02~
0.08%, Si 0.40~0.80%, P 0.02~0.05%, S 0.01-0.05%, N 0.02~0.06%, remaining for Fe and
Inevitable impurity.
The mechanical property of the stainless steel band finished product is as follows:
| Project | Numerical value |
| Yield strength | 300-350MPa |
| Tensile strength | 700-750MPa |
| Extensibility | 50-70% |
| Hardness | 160-180HV |
| Surface roughness | 0.15-0.25μm |
With specific embodiment, the present invention is further explained below
(1) Cold Rolling System of the present invention is carried out the cold-rolling treatment of stainless steel by following processes:
Select the stainless steel band blank of preset thickness；
Upper volume is carried out to stainless steel band blank；
Stainless steel band blank after upper volume is subjected to laser welding to different volume stainless steel band blanks by laser-beam welding machine；
By the stainless steel band blank after laser welding by entry loop be transferred to the first cold-rolling mill carry out the first passage it is cold
It rolls；
Stainless steel band blank after first passage cold rolling is subjected to the second passage cold rolling by the second cold-rolling mill；
Stainless steel band blank after second passage cold rolling is subjected to the cold rolling of third passage by third cold-rolling mill；
Stainless steel band blank after third passage cold rolling is subjected to four-pass cold rolling by the 4th cold-rolling mill；
Stainless steel band blank after four-pass cold rolling is subjected to the 5th passage cold rolling by the 5th cold-rolling mill；
Stainless steel band blank after 5th passage cold rolling is subjected to the 6th passage cold rolling by the 6th cold-rolling mill；
Stainless steel band blank after 6th passage cold rolling is cleaned；
Stainless steel band blank after cleaning is transmitted to subsequent processing by outlet looping, dried, cleaned, annealed,
After electrolysis, pickling, straightening are smooth, stainless steel band finished product is obtained.
(2) the Cold Rolling System running parameter of each embodiment is as follows:
(3) it is as follows that stainless steel band end properties is made:
In conclusion six tandem rollings of fully continuous type of the present invention, can be improved the mechanical property of finished product, yield strength is
300-350MPa, tensile strength 700-750MPa, extensibility 50-70%, hardness 160-180HV, and obtain with a thickness of
0.2~4mm, and the stainless steel band finished product with 2B mirror effect, bright in appearance is high-grade, and thickness range is wide, meets different processing
Demand of the industry to different-thickness stainless steel band.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (10)
1. a kind of Cold Rolling System of stainless steel band characterized by comprising
Feeding device, for the stainless steel band blank of 1.0~6.0mm to be carried out upper volume；
The laser-beam welding machine being connect with feeding device, for carrying out laser welding to different volume stainless steel band blanks；
The entry loop being connect with laser-beam welding machine；
The first cold-rolling mill being connect with entry loop, for stainless steel band blank to be carried out the first passage cold rolling；
The second cold-rolling mill being connect with the first cold-rolling mill, for the stainless steel band blank after the first passage cold rolling to be carried out second
Secondary cold rolling；
The third cold-rolling mill being connect with the second cold-rolling mill, for the stainless steel band blank after the second passage cold rolling to be carried out third road
Secondary cold rolling；
The 4th cold-rolling mill being connect with third cold-rolling mill, for the stainless steel band blank after third passage cold rolling to be carried out the 4th
Secondary cold rolling；
The 5th cold-rolling mill being connect with the 4th cold-rolling mill, for the stainless steel band blank after four-pass cold rolling to be carried out the 5th
Secondary cold rolling；
The 6th cold-rolling mill being connect with the 5th cold-rolling mill, for the stainless steel band blank after the 5th passage cold rolling to be carried out the 6th
Secondary cold rolling；
The cleaning machine being connect with the 6th cold-rolling mill, for cleaning the stainless steel band blank after the 6th passage cold rolling；
The outlet looping being connect with cleaning machine；
Wherein, first cold-rolling mill, the second cold-rolling mill, third cold-rolling mill, the 4th cold-rolling mill, the 5th cold-rolling mill and the 6th cold rolling
Machine includes the working roll for carrying out cold-rolling treatment, and the intermediate calender rolls above or below working roll are set to above intermediate calender rolls
Or lower section support roller and side support roller set on working roll side；
Along the axis direction of the working roll, the internal helicoid of the working roll is disposed with pressure sensor, for real
Now press magnetic control.
2. the Cold Rolling System of stainless steel band as described in claim 1, which is characterized in that first cold-rolling mill, the second cold rolling
Machine, third cold-rolling mill, the 4th cold-rolling mill, the 5th cold-rolling mill and the 6th cold-rolling mill arranged in series, for disposably rolling different thickness
The stainless steel band of degree.
3. the Cold Rolling System of stainless steel band as described in claim 1, which is characterized in that the diameter of the working roll is less than centre
The diameter of roller, the diameter of the intermediate calender rolls are less than the diameter of support roller.
4. the Cold Rolling System of stainless steel band as claimed in claim 3, which is characterized in that the side support roller includes three collateral
Support divides roller, and three collateral supports divide roller arrangement triangular in shape；
Wherein, first collateral support divides roller to be bonded with working roll and be not bonded with intermediate calender rolls, and second collateral support divides roller and first
A collateral support divides roller to be bonded and is not bonded with intermediate calender rolls, and the collateral support of third divides roller to divide roller to be bonded and with the with first collateral support
Two collateral supports divide roller not to be bonded.
5. the Cold Rolling System of stainless steel band as described in claim 1, which is characterized in that first cold-rolling mill, the second cold rolling
Emulsion feeding device, the emulsification are equipped in machine, third cold-rolling mill, the 4th cold-rolling mill, the 5th cold-rolling mill and the 6th cold-rolling mill
Liquid feeding device applies emulsion to the radial direction of working roll, and the emulsion includes 95-98% water and 2-5% ROLLING OIL,
The flow of the emulsion is 2900~5500L/min.
6. the Cold Rolling System of stainless steel band as claimed in claim 5, which is characterized in that the viscosity of the ROLLING OIL is 600-
800mm2/ s, the sum of reduction ratio of six passage cold rollings are maximum 70-80%.
7. the Cold Rolling System of stainless steel band as claimed in claim 5, which is characterized in that of first cold-rolling mill inlet
Power is 240~260KN, and the tension at first outlet of cold-rolling mill is 490~650KN, the roll-force of first cold-rolling mill
For 9600~9800KN, the mill speed of first cold-rolling mill is 60~110m/min, the emulsion of first cold-rolling mill
Flow be 3100~4200L/min；
Tension at second outlet of cold-rolling mill is 440~700KN, the roll-force of second cold-rolling mill is 10000~
The mill speed of 11000KN, second cold-rolling mill are 80~150m/min, and the flow of the emulsion of second cold-rolling mill is
3000~4100L/min；
Tension at the third outlet of cold-rolling mill is 390~650KN, the roll-force of the third cold-rolling mill is 9400~
The mill speed of 9600KN, the third cold-rolling mill are 90~220m/min, and the flow of the emulsion of the third cold-rolling mill is
3200~4300L/min；
Tension at 4th outlet of cold-rolling mill is 340~600KN, the roll-force of the 4th cold-rolling mill is 9100~
The mill speed of 9350KN, the 4th cold-rolling mill are 110~280m/min, and the flow of the emulsion of the 4th cold-rolling mill is
2900~4000L/min；
Tension at 5th outlet of cold-rolling mill is 310~560KN, the roll-force of the 5th cold-rolling mill is 8900~
The mill speed of 9100KN, the 5th cold-rolling mill are 120~310m/min, and the flow of the emulsion of the 5th cold-rolling mill is
3300~4400L/min；
Tension at 6th outlet of cold-rolling mill is 230~500KN, the roll-force of the 6th cold-rolling mill is 8700~
The mill speed of 9000KN, the 6th cold-rolling mill are 130~400m/min, and the flow of the emulsion of the 6th cold-rolling mill is
3250~4350L/min.
8. the Cold Rolling System of stainless steel band as described in claim 1, which is characterized in that the entry loop and outlet looping are
At least six layers of big loop, at least six layers big loop are arranged along vertical direction；
The tension of the entry loop is 40~50KN, and the tension of the outlet looping is 20~50KN.
9. the Cold Rolling System of stainless steel band as described in claim 1, which is characterized in that first cold-rolling mill, the second cold rolling
Automatic thickness control system and template control are equipped in machine, third cold-rolling mill, the 4th cold-rolling mill, the 5th cold-rolling mill and the 6th cold-rolling mill
System processed, for controlling the thickness and template of stainless steel band.
10. the Cold Rolling System of stainless steel band as described in claim 1, which is characterized in that the ingredient of the stainless steel band finished product
Weight percent are as follows:
C 0.01~0.05%, Ni 6.0~9.5%, Cr 16.5~20.0%, Mn 0.1~3.0%, Cu 0.01~
0.2%, Si 0.15~1.0%, P 0.01~0.2%, S 0.01-0.1%, N 0.02~0.15%, remaining is Fe and can not
Avoid impurity.
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|---|---|---|---|
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| CN112475783A (en) * | 2020-10-19 | 2021-03-12 | 江苏苏讯新材料科技股份有限公司 | Novel stainless iron screw cap and manufacturing process thereof |
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| CN112475783A (en) * | 2020-10-19 | 2021-03-12 | 江苏苏讯新材料科技股份有限公司 | Novel stainless iron screw cap and manufacturing process thereof |
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