CN101844151B - Stainless steel strip production equipment and discontinuous production method - Google Patents
Stainless steel strip production equipment and discontinuous production method Download PDFInfo
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- CN101844151B CN101844151B CN 201010155460 CN201010155460A CN101844151B CN 101844151 B CN101844151 B CN 101844151B CN 201010155460 CN201010155460 CN 201010155460 CN 201010155460 A CN201010155460 A CN 201010155460A CN 101844151 B CN101844151 B CN 101844151B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 104
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 16
- 239000010935 stainless steel Substances 0.000 title claims abstract description 16
- 238000000137 annealing Methods 0.000 claims abstract description 60
- 238000005097 cold rolling Methods 0.000 claims abstract description 40
- 239000002253 acid Substances 0.000 claims abstract description 20
- 230000002427 irreversible effect Effects 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 230000001590 oxidative effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 59
- 238000005096 rolling process Methods 0.000 claims description 35
- 238000005554 pickling Methods 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000007254 oxidation reaction Methods 0.000 claims description 22
- 230000002441 reversible effect Effects 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 21
- 230000003647 oxidation Effects 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 10
- 238000005098 hot rolling Methods 0.000 claims description 9
- 235000021110 pickles Nutrition 0.000 claims description 9
- 238000005238 degreasing Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims description 5
- 238000013467 fragmentation Methods 0.000 claims description 2
- 238000006062 fragmentation reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 101000685724 Homo sapiens Protein S100-A4 Proteins 0.000 description 2
- 102100023087 Protein S100-A4 Human genes 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
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- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
- C23G3/028—Associated apparatus, e.g. for pretreating or after-treating for thermal or mechanical pretreatment
-
- 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
- B21B1/30—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 non-continuous process
-
- 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
- B21B15/0035—Forging or pressing devices as units
- B21B15/005—Lubricating, cooling or heating means
-
- 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
-
- 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
- B21B2015/0064—Uncoiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to equipment which uses coils of hot rolled strips coated with oxidated skins to produce stainless steel strips, including at least a main production line which at least has following members along the operation direction of the strip: an unwinder (5), an annealing furnace (6) in the oxidative atmosphere, mechanical descaling devices (7, 8) for breaking oxidated skins on thestrips, a device (9) for chemically acid cleaning the strips, an irreversible cold rolling device (10) which includes at least three frames, and at least a strip winder (11), wherein the equipment isespecially in an opened type, improves the quality of the strips, enhances the production ability and will not cause problem to the primary investment of the main production line.
Description
Technical field
The present invention relates to by the method for before coming discontinuous production stainless steel band through the steel band of hot rolling.
The invention still further relates to by the equipment that before came discontinuous production corrosion resistant plate metal tape through the steel band of hot rolling.
Background technology
In the stainless steel field, known three kinds by the device cluster (plant family) that before came discontinuous production stainless steel band through the steel band of hot rolling.
At first, the first device cluster is so-called " independent equipment ", and the annealing that it is preliminary and preliminary pickling line are to separate with preliminary cold rolling line.Therefore, the steel band that hot-working is produced is the first step annealing of process and preliminary acid pickling step on the first production line at first, in addition rewinding around, then be transported to the second production line to carry out preliminary cold-rolling process always.
In the downstream of preliminary rolling mill practice, to steel band carry out rewinding around, then must carry out transportation processing in order to during another passage or rolling number of times (pass), carry out final pickling annealing to the roll coil of strip (coil).In the situation of " skin-pass (skin pass) " type surface rolling mill practice that links up, such equipment can be produced the corrosion resistant plate metal tape of 2D or 2B surface quality.Yet such equipment Shortcomings namely will carry out too many time steel coil strip carrying operation between different production lines.
" half is integrated " device cluster is also known, wherein in mechanical descaling or (scale the cleaning) (tension straingtening that descales, then sandblast) and before the chemical pickling scale removal, preliminary cold-rolling process and preliminary annealing steps are associated at same production line.
In present operation and known equipment, preliminary cold rolling step carries out in the first upstream of step annealing on hot rolled strip.Such equipment thereby can be on described production line produce the low steel band of surface quality, i.e. 2E with single step or maximum three steps.
In order to obtain the steel of fine quality, i.e. 2D or 2B surface quality, the production of sheet metal is discontinuous, needs reel steel sheet metal, to carry the roll coil of strip, the processing of should reeling thus before carrying out the cold-rolling process second time; During second is inferior, carry out the cold-rolling process second time, secondary annealing and acid pickling step afterwards, thereby can obtain the stainless steel of 2D surface quality, perhaps in the situation of carrying out consistently " skin-pass " type surface rolling mill practice, still obtain the steel band of 2B quality.
Yet there is defective in the equipment of this " half integrated " type at the first production line, and this first production line includes a kind of irreversible apparatus for cold rolling that is positioned at the production line original position, particularly is subsequently mechanical descaling and a kind of descaling bath.Yet point out that as the inventor because preliminary rolling mill practice, two equipments after leaning on are all long especially, this has just increased the speed of service of milling train downstream part band.
At last, the 3rd device cluster of generally mentioning is so-called " integral body " equipment, and the band of wherein being produced by hot-working is realized the production of stainless steel metal plate at a continuous production line.Such equipment especially can be produced the band of 2B quality.Same tinuous production thereby comprise mechanical descaling's device (oxide carbon dust and sanding machine), acid dip pickle such as chemical bath, it is irreversible preliminary apparatus for cold rolling thereafter, final annealing device, and final acid dip pickle and final " skin-pass " type surface rolling device.
Such production line discloses in document EP-0 769 333.In case arbitrary equipment item breaks down yet the shortcoming of this tinuous production is it, Whole Equipment will be worked.
In addition, the First section of above-mentioned production line, especially comprise preliminary pickling and preliminary rolling mill practice, its production capacity is subject to realizing the restriction of the second downstream production line section section of final pickling, and wherein section's section of back can not have the band running speed that the First section is equally high as described.Such continuous device thereby production capacity are limited.
Summary of the invention
The purpose of this invention is to provide a kind of method that is used for discontinuous production stainless steel band of correcting aforementioned disadvantages.
More specifically, the method that the purpose of this invention is to provide a kind of discontinuous production stainless steel band, and the equipment that is used for the Discontinuous manufacture stainless steel band, can be according to the viewpoint of production capacity or band quality to be produced, carry out in the mode of open or expansible type (open-ended), it especially can improve quality by investment progressively, and can not bring problem to initial capitalization.
Another object of the present invention provides a kind of method and the equipment that can realize the production corrosion resistant plate metal tape of high productive capacity.
Another object of the present invention provides a kind of equipment with the length space requirement that reduces to some extent.
Other purposes of the present invention and advantage will provide in the following description, and it is the purpose of explaining rather than is construed as limiting.
At first the present invention relates to the technique of Discontinuous manufacture stainless steel band at least one production line.
According to the present invention, before mainly passed through in order following steps through hot rolled strip hot rolling, that be coated with oxidation cortex, wound into coiled stock:
-in the phase I, carry out first in described at least one so-called main line:
-the roll coil of strip is untied coiling,
-band is carried out just step annealing,
-band is carried out mechanical descaling, so as broken and destroy the oxidation cortex,
-band is carried out preliminary chemical pickling, removing remaining oxide skin,
-band is carried out tentatively cold rolling, producing cold rolling or cold-hammer hits (cold hammered) band,
-cold-strip reeled makes it be the band roll form,
-and at least one second stage, during the so-called main line of described same was carried out second time, band was along identical rotation direction, or carry out at different, so-called the second production line:
-cold-strip is untied coiling,
-cold-strip is annealed under oxidizing atmosphere, produces oxide skin on the band,
-band after the annealing is carried out chemical pickling with scale removal or scale removal,
-according to circumstances, the band after the annealing carries out the surface rolling of " skin-pass " type,
-the corrosion resistant plate metal tape is reeled.
The invention still further relates to by the equipment that before brought Discontinuous manufacture corrosion resistant plate metal tape through the hot-rolled steel that is coated with oxidation cortex, wound into coiled stock of hot rolling, comprise at least one so-called main line, comprise at least along the rotation direction of band:
-uncoiler,
Annealing furnace under the-oxidation atmosphere,
-mechanical descaling device is used for broken and destroys oxidation cortex on the band,
-band is carried out the device of chemical pickling,
-irreversible apparatus for cold rolling comprises at least three frames,
-at least one band up-coiler.
The method of this device in especially can executive basis the present invention.
Therefore, preferably, the method in according to the present invention can be by comprising single tinuous production, be that the equipment of described main line is carried out, and this just makes the initial investment can be controlled.
In this case, then can be in each step of during second is inferior, carrying out the second stage of the method according to this invention on the same main line, only the described mechanical descaling device of main line is closed, and the frame of apparatus for cold rolling is opened.
When the production capacity of essential increase equipment, can be during second time investment stage provide one or two the second production lines might be provided at the output of main line.
In this case, each step of the phase I of described method is carried out in described main line, and each step of the second stage of described method is carried out at described the second production line.
Because the output of main line is greater than the second production line, can be according to circumstances provide two so-called the second production lines in output place of described main line, wherein each step of second stage can alternately be carried out on arbitrary in two described the second production lines.Consequently obtain equipment with high productive capacity.
Advantageously, in first passage of described method on described main line, the downstream at preliminary cold rolling step can comprise the step of deoiling.According to equipment of the present invention thereby can be equipped with degreasing machine in described main line, it is positioned at the downstream of irreversible apparatus for cold rolling, and in the upstream of described at least one band up-coiler.
Advantageously, such layout can be deoiled to cold-strip before each step of second stage carrying out.Thereby preferably on described the second production line, do not provide degreasing machine, guaranteeing in that as above to carry out device extension such, under having the situation of two the second parallel production lines, can exempt described equipment that namely the degreasing machine device being set.
Advantageously, embodiment according to the inventive method, annealing steps during the second stage can be final annealing, and the acid pickling step during the second stage can be final pickling, thereby in the situation when described band and then through the surface rolling step of " skin-pass " type the time, can produce the steel sheet metal band of 2D surface quality, perhaps even the band of 2B quality.
According to another embodiment of the present invention, the annealing steps during the second stage can be intermediate annealing process, and wherein the acid pickling step during the second stage is final acid cleaning process, and wherein:
Band after the-pickling also carries out reversible cold rolling step during the phase III on independent production line, and
-on another independent production line, during the quadravalence section, carry out the bright annealing step through reversible band after cold rolling, thereafter followed by be the surface rolling of " skin-pass " type, thereby can produce the steel sheet metal band of BA surface quality.
So can have following optional feature according to equipment of the present invention:
-described equipment can be that described main line forms by the wall scroll production line,
-alternatively, its equipment is except main line, can also comprise the second production line, it at least mainly is shown as: the rotation direction along band is provided with uncoiler, annealing furnace under the oxidation atmosphere, the acid dip pickle of use chemical reagent, the surface rolling device of optional " skin-pass " type, and band up-coiler
-obtain high output in order to make equipment, two parallel what is called the second production lines can be arranged at the output of described main line,
-in order to produce the steel band of BA surface quality, except described main line and described second production line that may exist, described equipment can have reversible cold rolling independent production line on the one hand, it comprises: a kind of first roll coil of strip up-coiler/uncoiler, a kind of particularly such as the such reversible rolling device of Sendzimir (Sendzimir) type, and a kind of second roll coil of strip up-coiler/uncoiler, on the other hand, equipment has independent bright anneling production line, and it comprises: the rotation direction along band is provided with uncoiler, annealing device with the heating furnace under the reducing atmosphere, the optional apparatus for cold rolling of " skin-pass " type, and up-coiler.
Description of drawings
The present invention can understand in below in conjunction with the description of the drawings better.
-Fig. 1 is the sketch of the method according to this invention, and it can be carried out by single so-called main line and be used for carrying out the stainless production of 2D or 2B surface quality,
-Fig. 2 is sketch according to a second embodiment of the method according to the invention, it carries out the phase I of described method and the step of second stage by main line, equipment has wherein had independently reversible rolling line in addition, independently bright annealing line and subsequent " skin-pass ", thereby can produce the stainless steel band of BA modified surface quality
-Fig. 3 is the schematic diagram according to the 3rd embodiment of the inventive method, the method is by a kind of equipment realization that has the main line that can implement the phase I step and can implement the second production line of second stage step, it can be used for producing the steel band of 2D or 2B quality
-Fig. 4 is the schematic diagram according to the 4th embodiment of the inventive method, the realization of the method is by feat of the independent production line of the described main line that realizes each step of phase I, described the second production line of realizing each step of second stage and reversible rolling and independently bright annealing production line and subsequent " skin-pass ", thereby can produce the steel sheet metal band of BA surface quality.
Fig. 5 is the schematic diagram according to the 5th embodiment of the inventive method.
The Reference numeral translation:
The HRC-hot rolled strip
HAPRL-thermal annealing pickling rolling line
The cold annealing and pickling production line of CAPL-
The CRC-cold-strip
The SPM-skin milll
The ZR-Sendzimir
BAL-bright annealing production line
The specific embodiment
Therefore, the present invention relates to for by the equipment that before brought Discontinuous manufacture corrosion resistant plate metal tape through the hot-rolled steel that is coated with oxidation cortex, wound into coiled stock of hot rolling, it comprises at least one so-called main line 1.
Described main line comprises at least along the rotation direction of band:
-uncoiler 5,
-be used for broken and destroy mechanical descaling's device 7,8 of the oxidation cortex on the band,
-make band stand the device 9 of chemical pickling, removing residual oxide skin,
-irreversible apparatus for cold rolling 10 comprises at least three frames, particularly three, four or five,
-at least one strip uncoiler 11.
In addition, as shown in Figure 5, this production line can also have: the cutter 16 between up-coiler 5 and accumulator 13 and welding unit 17, and another accumulator 14 between acid dip pickle 9 and irreversible rolling device, and another accumulator 15 (being thereafter cutter 18) that is positioned at up-coiler 11 upstreams.
Advantageously, according to preferred embodiment, in the downstream of the irreversible cold-rolling equipment 10 of what is called and the upstream of described at least one band up-coiler 11, described main line preferably is shown has degreasing machine 12.
When the institute of phase I all carried out in steps, this main line was called HAPRL in the accompanying drawings for short, with expression " thermal annealing pickling and rolling line ".
Described equipment alternatively by an independent production line, be that described main line forms, particularly the method shown in 1 with reference to the accompanying drawings can be produced the steel band of 2D or 2B quality.
Replacedly, except main line, described equipment can also comprise the second production line 2, and especially as shown in Figure 5, along the rotation direction of band, it at least mainly comprises:
-uncoiler 19,
Annealing furnace 20 under the-oxidation atmosphere,
The acid dip pickle 21 of-use chemical reagent,
The surface rolling device 23 of-optional " skin-pass " type,
-band up-coiler 22.
In addition, as shown in Figure 5, the second production line has: be positioned at cutter 28 and the welding unit 29 in uncoiler 19 downstreams, be positioned at the band accumulator 25 of annealing furnace 20 upstreams, and be positioned at the acid dip pickle 21 of use chemical reagent and another accumulator 26 between " skin-pass " device 23.
Another accumulator can be positioned between the surface rolling device 23 and up-coiler 22 of " skin-pass " type.On described main line and described the second production line, using the acid dip pickle 9 and 21 of chemical reagent can be chemical tank well known to those skilled in the art.
As for being used for broken and destroying mechanical descaling's device 7,8 of the oxidation cortex on the band, it can be the form of the oxide carbon dust utmost point under the effect of tractive force 7 so that broken oxidation cortex, thereafter followed by be sand-blasting machine 8.
As described in accompanying drawing 5, the present invention can be the equipment of high yield, and it is shown as two parallel what is called the second production lines that have at the main line output.It should be noted that these second production lines do not have degreaser, the step of wherein deoiling is subsequently by realizing with degreasing machine 12 in main line.
At last, according to the embodiment that does not specify, except described main line 1 and described second production line 2 that may exist, described equipment can also have reversible cold rolling independent production line 3 on the one hand, and it comprises reversible rolling device and the second roll coil of strip up-coiler/uncoiler of first roll coil of strip up-coiler/uncoiler, Sendzimir type well known to those skilled in the art.
On the other hand, described equipment can also have independent bright anneling production line 4, and its rotation direction along band comprises uncoiler, has the bright annealing device of the heating furnace under the reducing atmosphere, apparatus for cold rolling and the up-coiler of optional " skin-pass " type.
Described bright annealing device is different from form well known to those skilled in the art, but is expanded simply thereon.It forms with the form of the heating furnace under non-oxide (reduction) atmosphere, generally follows hard on thereafter the cooling end section, and this cooling has non-oxidized gas to blow on the tropocal wood equally.
This annealing device can be annealed to band, and can not damage the surface appearance of the band that is obtained by the reversible rolling step on the milling train of Sendzimir type.
In particular can executive basis method of the present invention according to equipment of the present invention.
The present invention thereby relate at least one stainless steel band production line, by the technique of before carrying out Discontinuous manufacture through being coated with of the hot rolling hot rolled strip HRC oxidation cortex, that be wound into the roll coil of strip (being used for hot-rolled coil), it mainly experiences following steps in order:
-during the phase I, in described at least one the first passage that is called on the main line 1:
-uncoiling,
-band is carried out just step annealing,
-band is carried out mechanical descaling, with fragmentation and destroy the oxidation cortex,
-band is carried out preliminary chemical pickling, removing remaining oxidation cortex,
-band is carried out tentatively cold rolling, producing cold-strip CRC (being used for the cold rolling roll coil of strip),
-cold-strip reeled makes its form that is the roll coil of strip,
-and during at least one second stage, during described same so-called main line was carried out second time, band was along identical rotation direction, or carry out at different second production lines 2 that is called:
The uncoiling of-cold-strip,
-cold-strip is annealed under oxidizing atmosphere, produces the oxidation cortex on the strip surface,
-band after the annealing is carried out chemical pickling removing dirt,
-alternatively, the band after the annealing carries out the surface rolling of " skin-pass " type,
-the corrosion resistant plate metal tape is reeled.
In addition, especially as shown in Figure 5, described method can comprise the step of deoiling in the first passage on described main line, and it is in the downstream of preliminary cold rolling step.
Advantageously, each step of second stage can be carried out in described main line 1, and especially the method shown in the accompanying drawing 1 according to the present invention perhaps remains the method shown in the accompanying drawing 2 according to the present invention.
The method of Fig. 1 example is that the annealing steps during a kind of wherein second stage is the method for final annealing technique, and the acid pickling step during the second stage of described method is final pickling operation, thereby when described band and then through the surface rolling step of " skin-pass " type the time, can produce the steel sheet metal band of 2D surface quality, perhaps or even the band of 2B quality.
" skin-pass " device can be provided in the end of described main line, or still on the erect-position that links up mutually with described main line.
Equally, in the step of phase I shown in the method for mainly being carried out by described main line has realized during first time on accompanying drawing 1, referred to as " the thermal annealing pickling rolling line " of HAPRL, and during second time in the accompanying drawing step of 1 described phase I, referred to as " the cold annealing and pickling production line " of CAPL.For with its realization, during second time, only mechanical descaling's device 7,8 has been closed, and the frame of reversible cold-rolling equipment 10 is opened.
" skin-pass " type surface cold rolling step is referred to as SPM, with expression " skin milll ".
What the example of accompanying drawing 2 and accompanying drawing 1 were different is the steel band that its method can be produced the excellent surface quality of BA.
Except main line 1, described equipment comprises independent reversible rolling production line, and it is called ZR with expression " Sendzimir ", and bright annealing production line, its referred to as BAL with expression " bright annealing line ".Next be that " skin-pass " is referred to as SPM, with expression " skin milll ".
2 example with reference to the accompanying drawings, main line 1 can realize each step according to phase I of the present invention and second stage, as described in the example of before accompanying drawing 1.End in each step of second stage has produced the steel band of 2D quality, to its reel then carrying until reversible rolling line 3 process.
In the production line of back, band carries out several reversible cold rolling steps consistently along rotation direction, thereby can obtain good surface appearance.Then reeled band and with its carrying until bright annealing line 4 independently, so that band is carried out bright annealing.
At last, the band after the annealing carries out the surface rolling step, to obtain the stainless steel band of BA quality.
According to another embodiment of the present invention, especially shown in Fig. 3 and 4, each step of second stage can be carried out at the second production line 2, and as previously mentioned, the second production line and main line distinguish, the method thereby have higher productivity.Therefore we will introduce the example of Fig. 3, and it at first processed hot rolled strip HRC in described main line 1 before each step of the phase I of carrying out described method, and this is referred to as HAPRL.
Then the cold-reduced sheet metal tape is handled upside down and enters the second production line 2 and processed, to carry out each step of second stage, referred to as CAPL.Can be in the end of the second production line or still carry out in the situation of " skin-pass " at the erect-position that links up, consequently the second production line output 2D or even the steel band of 2B quality.
Advantageously, the embodiment shown in 5 with reference to the accompanying drawings, its method can be implemented at the equipment with two second parallel production lines, thereby then processes the cold-reduced sheet metal tape to another since the phase I on of two production lines alternatively.
The difference of the example of accompanying drawing 4 and accompanying drawing 3 is: except main line 1 and the second production line 2, its equipment also has independently reversible cold rolling line 3, referred to as ZR with the expression Sendzimir, have thereafter independently bright annealing line, referred to as BAL with the expression " bright annealing line ".In this case, the steel band of described method second stage end can be reeled and then be carried out reversible rolling at reversible rolling line 3, and then reels and be moved to independent bright annealed wire and process." skin-pass " can carry out in the end of bright annealing line, perhaps on the erect-position that links up, thereby can produce the steel band of BA surface quality.
Certainly, can expect other embodiment, and need not to depart from the framework of the present invention of being determined by following claim.
Claims (16)
1. the Discontinuous manufacture method of a stainless steel band that carries out at least one production line of equipment, it is characterized in that, by before through hot rolling, surface coverage has the hot rolled strip oxidation cortex, wound into coiled stock (HRC), mainly carries out in order following steps:
-in the phase I, at least one the first passage that is called on the main line (1);
-uncoiling,
-band is carried out just step annealing,
-band is carried out mechanical descaling, with fragmentation and destroy the oxidation cortex,
-band is carried out preliminary chemical pickling, removing remaining oxide skin,
-band is carried out tentatively cold rolling, producing cold-strip (CRC),
-cold-strip is reeled so that it is the form of the roll coil of strip,
-and at least one second stage, carrying out second in the described main line (1) that is called of same, band is along identical rotation direction, or carries out at different the second production lines (2) that is called;
The uncoiling of-cold-strip,
-cold-strip is annealed under oxidizing atmosphere, produces oxide skin on the band,
-band after the annealing is carried out chemical pickling with scale removal,
-the corrosion resistant plate metal tape is reeled.
2. according to claim 1 method in the first passage of described main line, also has the step of deoiling in addition in the downstream of preliminary cold rolling step.
3. according to claim 2 method, wherein each step of second stage is carried out in described main line (1).
4. according to claim 1 and 2 method, wherein each step of second stage is carried out at described the second production line (2).
5. according to claim 4 method, wherein two the second production lines (2) are arranged on the output of main line (1), and wherein second stage each step alternately arbitrary in described two the second production lines (2) carry out.
6. each method in 3 according to claim 1, wherein the annealing steps of second stage is final annealing technique, and the acid pickling step of described second stage is final acid cleaning process, thereby in the situation when described band and then through the surface rolling step of " skin-pass " type the time, can produce the steel sheet metal band of 2D surface quality, perhaps even the band of 2B quality.
7. each method in 3 according to claim 1, wherein the annealing steps of second stage is intermediate annealing process, the acid pickling step of described second stage is final acid cleaning process, and wherein:
Band after the-pickling also upward carries out reversible cold rolling step in the phase III at independent production line (3), and
-carry out bright annealing step in the quadravalence section through reversible band after cold rolling in that another independent production line (4) is upper, thereafter followed by be the surface rolling of " skin-pass " type, thereby can produce the steel sheet metal band of BA surface quality.
8. each method in 3 according to claim 1 wherein at least one second stage, is being carried out between chemical pickling reels with scale removal with to the corrosion resistant plate metal tape, and the band after the annealing also carries out the surface rolling of " skin-pass " type.
9. be used for comprising at least one main line that is called (1) by previous through equipment hot rolling, that be coated with the hot rolled strip Discontinuous manufacture corrosion resistant plate metal tape oxidation cortex, wound into coiled stock, comprise at least along the rotation direction of being with:
-uncoiler (5),
Annealing furnace under the-oxidation atmosphere (6),
-mechanical descaling device (7,8) is used for broken and destroys oxidation cortex on the band,
-band is carried out the device (9) of chemical pickling,
-irreversible apparatus for cold rolling (10) comprises at least three frames,
-at least one band up-coiler (11).
10. according to claim 9 equipment, wherein said main line (1) is equipped with degreasing machine, and it is positioned at the downstream of described irreversible apparatus for cold rolling (10), and is positioned at the upstream of described at least one band up-coiler (11).
11. according to claim 9 or 10 equipment, it is that described main line (1) forms by single production line.
12. according to claim 9 or 10 equipment, it also comprises the second production line (2) except main line (1), at least mainly comprises along the rotation direction of band:
-uncoiler (19),
Annealing furnace under the-oxidation atmosphere (20),
The acid dip pickle (21) of-use chemical reagent,
-band up-coiler (22).
13. equipment according to claim 12, the output in described main line (1) has two parallel the second production lines (2) that are called.
14. equipment according to claim 12 describedly is called the surface rolling device (23) that the second production line (2) also is included in " skin-pass " type between acid dip pickle (21) and the band up-coiler (22).
15. arbitrary equipment in 10 according to claim 9, except described main line (1), on the one hand, described equipment has reversible cold rolling independent production line (3), and it comprises the first up-coiler/uncoiler, reversible rolling equipment and the second up-coiler/uncoiler; On the other hand, described equipment also has independent bright anneling production line (4), comprise apparatus for cold rolling and the coiling machine of uncoiler, bright annealing equipment, " skin-pass " type along the rotation direction of band, described bright annealing equipment comprises the stove under the reducing atmosphere.
16. equipment according to claim 12, except described main line (1) and described the second production line (2), on the one hand, described equipment has reversible cold rolling independent production line (3), and it comprises the first up-coiler/uncoiler, reversible rolling equipment and the second up-coiler/uncoiler; On the other hand, described equipment also has independent bright anneling production line (4), comprise apparatus for cold rolling and the coiling machine of uncoiler, bright annealing equipment, " skin-pass " type along the rotation direction of band, described bright annealing equipment comprises the stove under the reducing atmosphere.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0901202A FR2942978B1 (en) | 2009-03-16 | 2009-03-16 | METHOD FOR THE DISCONTINUOUS PRODUCTION OF A STAINLESS STEEL STRIP FROM A HOT-ROLLED PRE-HOT STEEL STRIP |
| FR09/01202 | 2009-03-16 |
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| CN101844151A CN101844151A (en) | 2010-09-29 |
| CN101844151B true CN101844151B (en) | 2013-10-23 |
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| CN 201010155460 Active CN101844151B (en) | 2009-03-16 | 2010-03-16 | Stainless steel strip production equipment and discontinuous production method |
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| CN (1) | CN101844151B (en) |
| FR (1) | FR2942978B1 (en) |
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| CN102228902A (en) * | 2011-04-25 | 2011-11-02 | 无锡嘉联不锈钢有限公司 | Cold-rolling process of ultrathin stainless steel band |
| CN102310314B (en) * | 2011-07-01 | 2013-03-20 | 云南钛业股份有限公司 | Processing method of titanium and titanium alloy strip coils |
| DE102019110271A1 (en) * | 2019-04-18 | 2020-01-02 | Primetals Technologies Austria GmbH | Cold rolling mill with alternative feeding of a steel strip in two different ways |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19532278A1 (en) * | 1995-09-01 | 1997-03-06 | Gewerk Keramchemie | Process for producing a cold rolled strip in one pass |
| EP0769333A1 (en) * | 1995-10-19 | 1997-04-23 | Usinor Sacilor | Method for continuously producing, in a line, rolled sheet metal strip of stainless steel with improved surface condition |
| CN1410177A (en) * | 2001-09-21 | 2003-04-16 | 株式会社日立制作所 | Equipment for continuous aid-washing and cold rolling and its operating method |
| CN1694975A (en) * | 2002-11-09 | 2005-11-09 | Sms迪马格股份公司 | Method and device for descaling and/or cleaning a metal casting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4885042A (en) * | 1987-05-22 | 1989-12-05 | Kawasaki Steel Corp. | Method and apparatus for preliminary treatment of stainless steel for cold rolling |
| JPH0757891B2 (en) * | 1989-08-17 | 1995-06-21 | 新日本製鐵株式会社 | Method for producing Cr-based stainless steel sheet BA product having excellent surface properties |
| FR2775205B1 (en) * | 1998-02-25 | 2000-03-24 | Usinor | INSTALLATION FOR MANUFACTURING COLD ROLLED STAINLESS STEEL STRIPS |
| CN101294260A (en) * | 2007-04-24 | 2008-10-29 | 宝山钢铁股份有限公司 | High-strength stainless cold-rolled steel strip and method for manufacturing same |
| CN101274497A (en) * | 2008-04-28 | 2008-10-01 | 江苏江南冷轧薄板有限公司 | Hot galvanizing plate and manufacturing method therefor |
-
2009
- 2009-03-16 FR FR0901202A patent/FR2942978B1/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19532278A1 (en) * | 1995-09-01 | 1997-03-06 | Gewerk Keramchemie | Process for producing a cold rolled strip in one pass |
| EP0769333A1 (en) * | 1995-10-19 | 1997-04-23 | Usinor Sacilor | Method for continuously producing, in a line, rolled sheet metal strip of stainless steel with improved surface condition |
| CN1156065A (en) * | 1995-10-19 | 1997-08-06 | 于西纳·萨西罗公司 | Process for continuous production of rolled stainless steel sheet strip and continuous production line for carrying out process |
| CN1410177A (en) * | 2001-09-21 | 2003-04-16 | 株式会社日立制作所 | Equipment for continuous aid-washing and cold rolling and its operating method |
| CN1694975A (en) * | 2002-11-09 | 2005-11-09 | Sms迪马格股份公司 | Method and device for descaling and/or cleaning a metal casting |
Non-Patent Citations (1)
| Title |
|---|
| JP平3-75317A 1991.03.29 |
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| Publication number | Publication date |
|---|---|
| TW201100557A (en) | 2011-01-01 |
| FR2942978B1 (en) | 2011-03-18 |
| CN101844151A (en) | 2010-09-29 |
| FR2942978A1 (en) | 2010-09-17 |
| TWI460277B (en) | 2014-11-11 |
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