CN103920710A - Production method of low-consumption corrosion-resistant cold-rolled product - Google Patents
Production method of low-consumption corrosion-resistant cold-rolled product Download PDFInfo
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- CN103920710A CN103920710A CN201410118164.4A CN201410118164A CN103920710A CN 103920710 A CN103920710 A CN 103920710A CN 201410118164 A CN201410118164 A CN 201410118164A CN 103920710 A CN103920710 A CN 103920710A
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Abstract
The invention relates to a production method of a low-consumption corrosion-resistant cold-rolled product. The method specifically includes the following steps: uncoiling via an uncoiler; breaking and stripping oxides on the surface of strip steel via a leveler; further breaking and stripping the oxides on the surface of the strip steel via a multi-roll straightener; removing the shed and loose oxides of the surface of the strip steel via a scrubbing device; subjecting the treated strip steel to acid pickling and rinsing; removing surface residues of the strip steel mechanically; then subjecting the strip steel to cold rolling; recoiling via a recoiler. Through the method, the surface oxides of the strip steel have more cracks and are large in clearance, and efficiency of acid pickling is improved; part of the oxides is removed while scale breaking, reacting dose of acid pickling is decreased, and acid consumption is lowered; the added value of yield strength of the strip steel after scale breaking is lowered, and convenience is brought to subsequent cold rolling; the strip steel is subjected to leveling prior to cold rolling, so that profile precision of the finished product is improved; chloride ion residues on the surface of the product are decreased, and corrosion resistance of the product is enhanced.
Description
Technical field
The invention belongs to the flat material deep processing of ordinary hot draw down field, particularly relate to the anti-corrosion cold-rolled products production method of a kind of low consumption.
Background technology
The pickling milling train combination machine of prior art has following notable feature: entrance configuration withdrawal straightening machine 3 carries out the broken phosphorus of machinery, and the band steel 7 after broken phosphorus becomes hot rolling acid-cleaning product after overpickling 4, rinsing 30.
As shown in Figure 1, there is following defect in this production process: is made up of uncoiler 1, entry loop 2, withdrawal straightening machine 3, pickling 4, rinsing 30, outlet looping 5, tandem mill 23 and coiling machine 6, entrance configuration withdrawal straightening machine 3 carries out the broken phosphorus of machinery, band steel 7 after broken phosphorus becomes hot rolling acid-cleaning product after overpickling 4, rinsing 30, at machine set outlet configuration tandem mill 23, broken undesirable pickling 4 efficiency that cause of phosphorus effect are low; The rear acid solution of pickling 4 is residual serious, and residual acid enters milling train after stain emulsion, reduces product corrosion resistance.
As shown in Figure 2, due to material its yield strength fast rise under action of pulling stress, reduce rolling process compression ratio, and to causing adverse effect with the quality of edges of steel 7, for retainer belt steel 7 rolling performances, need to reduce the setting percentage elongation of withdrawal straightening machine 3, under this operating mode, band steel 7 leaves after withdrawal straightening machine 3, band steel 7 body elastic recoverys, cause band steel 7 oxide on surface crackle 9 closures, therefore in pickling 4 processes, acid solution is difficult to be penetrated into FeO 33 from closed oxide crackle 9, and react with it, pickling 4 efficiency are very low, in above-mentioned conventional rack pickling 4 efficiency with influence each other with the rolling performance of steel 7, restriction mutually, production efficiency and the end product quality of product are reduced.
Band steel 7 is after overpickling 4, it is residual that surface has acid solution, and the poorer band steel 7 of surface quality, surface acid solution residual quantity is larger, these residual chlorions enter after tandem mill 23, not only destroy the performance of emulsion, shorten its life cycle, and residual chlorion also can directly reduce the corrosion resisting property of finished strip 7.
Residual for reducing acid solution, adopt traditionally multistage rinsing 30 method cleaning tape steel 7, and in rinsing 30 processes, constantly promote rinsing 30 temperature, increase the kinetic energy of molecule in rinsing 30 grooves, accelerate acid solution diffusion, the rinsing temperature of general final rinse 30 is 85 ° of C left and right, additionally increase the energy consumption of production process, nonetheless,, from practical condition, in final rinse 30 grooves, acid strength is still at 100mg/l-150mg/l.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of low consumption anti-corrosion cold-rolled products production method, pass through the technical program, the present invention adopts smooth aligning combination to break phosphorus, dephosphorization, make the belt steel surface oxide quantity of formation after processing many, and be permanent oxide crackle, pickling efficiency is high, acid consumption is low, residual for reducing after pickling plate face, before final rinse groove, configure mechanical surface residue scavenge unit, significantly reduce plate face Chloride residue, extend the service life of the emulsion of applying on tandem mill, improve the surface quality of final cold-rolled products.
In order to achieve the above object, technical scheme of the present invention is achieved in that the anti-corrosion cold-rolled products production method of a kind of low consumption, specifically comprises the steps:
A. uncoiler uncoiling;
B. planisher carries out fragmentation, peels off the oxide of belt steel surface;
C. multi-roll straightening machine to the oxide of belt steel surface further broken, peel off;
D. the removing of the scrubbing roller in brushing device belt steel surface comes off and loosening oxide;
E. will through smooth, align and scrub band steel after treatment and carry out pickling, rinsing;
F. the band steel through overpickling is entered into mechanical plate face residue removal device and carry out the cleaning of mechanical surface residue;
G. be rolled processing to entering tandem mill through the band steel of above-mentioned processing;
H. band steel after treatment is batched and becomes finished product through coiling machine.
Production method of the present invention is flattening process, multiple roll straightening process, scrub technique, the group technology of acid cleaning process, the cleaning of mechanical surface residue and cold rolling processing technology, after processing uncoiler, dispose the process equipment that planisher, multi-roll straightening machine, brushing device three covers possess broken phosphorus, phosphorus removal functional, treated band steel enters acid tank and carries out pickling processing, and then the band steel after pickling is entered into mechanical plate face residue removal device carry out the cleaning of mechanical surface residue, finally more above-mentioned band steel is entered into tandem mill and carry out cold rolling processing.
In technical scheme of the present invention, comprise three mechanical types and break phosphorus, phosphorus removal functional, first planisher carries out fragmentation to the oxide of belt steel surface, then utilize the multi-roll straightening machine of planisher outlet to carry out repeatedly forward and reverse bending to broken oxide, further broken oxide, finally utilize brushing device to carry out oxide removing to belt steel surface, three complete equipment coordinated, remove the oxide of Surfaces of Hot Rolled Strip as much as possible.
In technical scheme of the present invention, comprise smooth broken phosphorus, multiple roll aligning broken phosphorus, dephosphorization, rinse eccysis phosphorus, pickling dephosphorization and mechanical surface residue cleaning technology, machinery dephosphorization efficiency by using is high, pickling time is short, acid consumption is low, the surperficial acid solution residual quantity of final products is low, and corrosion resistance is good.
The present invention has the acid reaction of shortening time function, through planisher, once broken phosphorus, multi-roll straightening machine secondary break after phosphorus, brushing device dephosphorization described band steel, form permanent, large scale oxide crackle at belt steel surface, now enter again pickling and carry out chemical dephosphorization, because belt steel surface possesses large scale oxide crackle, acid solution can rapid osmotic be reacted to FeO, and the pickling time of straight carbon steel is shortened to 10-12s by conventional 16-22s; Dual phase steel pickling time in high-strength steel is shortened to 20-25s by 35-45s.
The present invention has the function that reduces acid consumption, and described band steel, after planisher once breaks phosphorus, the broken phosphorus of multi-roll straightening machine secondary, brushing device dephosphorization, has been removed belt steel surface partial oxide, has reduced chemical reaction amount, has reduced sour consumption.
In the present invention, the product surface residual quantity of producing is low, and corrosion resistance is good, the carbon steel product introduction machinery plate face residue removal device through overpickling is carried out to the cleaning of mechanical surface residue, to remove the acid solution at belt steel surface convex-concave place.
In technical scheme of the present invention, the breaking elongation control function that comprises brokenly phosphorus process, when planisher is removed belt steel surface oxide, by the breaking elongation of planisher roll-force dynamic adjustment function control planisher and multi-roll straightening machine, and then the performance of guarantee institute rapidoprint.
The present invention has not to be affected under the prerequisite of strip property, remove the function of belt steel surface oxide, the combination of planisher, multi-roll straightening machine and brushing device, can be in the time that band steel percentage elongation be 0.8%-1.5%, form permanent, large-sized oxide crackle at belt steel surface, complete fast chemical surface treatment, stopped common hot-rolled product and produced luders band defect; Avoid the high-strength steel in carbon steel, IF rigidity to worsen.
The present invention possesses the ability of the cold-rolled products of producing plate shape excellence, after tentatively improving plate shape, planisher enters multi-roll straightening machine, and adjust the registration of smoothing roll up and down of multi-roll straightening machine according to belt steel thickness and material, further improve plate shape and the thickness and precision of cold rolling feeds, thereby, can produce the higher cold-rolled products of ejecting plate shape precision.
Adopt the beneficial effect after technique scheme to be: cold-rolled products production method that a kind of low consumption is anti-corrosion, by the technical program compared with prior art, 1 belt steel surface oxide crackle is many and gap is large, facilitates acid solution rapid osmotic, thereby can significantly promote pickling efficiency; When 2 broken phosphorus, remove partial oxide, reduce pickling reacting dose, reduce acid consumption; After 3 broken phosphorus processing, band steel yield strength value added is low, is convenient to follow-up cold rolling processing; 4 band steel carry out cold rolling processing after smooth again, have promoted the plate shape precision of final products; 5 have reduced product surface Chloride residue, have improved the corrosion resistance of product.
Brief description of the drawings
Fig. 1 is the broken phosphorus schematic diagram of straightening that in prior art, conventional pickling machine adopts.
Fig. 2 is the view of hot-strip straightening front and rear surfaces oxide iron sheet in prior art.
Fig. 3 is process equipment layout drawing of the present invention.
Fig. 4 is the broken phosphorus technique of flattening process in the present invention, aligning and scrubs the equipment structure chart of technique.
Fig. 5 is that in the present invention, planisher percentage elongation is belt steel surface oxide crackle state picture under 0.8%-1.5% state.
Mechanical plate face residue removal apparatus structure schematic diagram in Fig. 6 the present invention.
In figure, 1 uncoiler, 2 entry loops, 3 withdrawal straightening machines, 4 pickling, 5 outlet loopings, 6 coiling machines, 7 band steel, 8 oxides, 9 oxide crackles, 10 luders bands, 11 planishers, 12 multi-roll straightening machines, 13 working rolls, 14 smoothing rolls, 15 brushing devices, 16 scrubbing rollers, 18 backing rolls, 20 mechanical plate face residue removal devices, 23 tandem mill 30 rinsings, 31 Fe
2o
3, 32 Fe
3o
4, 33 FeO.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment in the present invention is described in further detail.
As shown in Figure 3 and Figure 4, the anti-corrosion cold-rolled products production method of a kind of low consumption the present invention relates to, specifically comprises the steps:
A. uncoiler 1 uncoiling;
B. planisher 11 carries out fragmentation, peels off the oxide 8 with steel 7 surfaces;
C. multi-roll straightening machine 12 to the oxide with steel 7 surfaces further broken, peel off;
D. the scrubbing roller 16 in brushing device 15 removes that belt steel surface comes off and loosening oxide 8;
E. will through smooth, align and scrub band steel 7 after treatment and carry out pickling 4, rinsing 30;
F. the band steel 7 through overpickling 4 is entered into mechanical plate face residue removal device 20 and carry out the cleaning of mechanical surface residue;
G. carry out cold rolling processing to entering tandem mill 23 through the band steel 7 of above-mentioned processing;
H. band steel 7 after treatment is batched and becomes finished product through coiling machine 6.
Production method of the present invention is flattening process, multiple roll straightening process, scrub technique, acid cleaning process, the group technology of the cleaning of mechanical surface residue and cold rolling processing technology, after processing uncoiler 1, dispose planisher 11, multi-roll straightening machine 12, brushing device 15 3 covers possess broken phosphorus, the process equipment of phosphorus removal functional, treated band steel 7 enters acid tank to carry out pickling 4 and processes, and then the band steel 7 after pickling 4 is entered into mechanical plate face residue removal device 17 carry out the cleaning of mechanical surface residue, finally more above-mentioned band steel 7 is entered into tandem mill 23 and carry out cold rolling processing.
In technical scheme of the present invention, comprise three mechanical types and break phosphorus, phosphorus removal functional, first planisher 11 carries out fragmentation to the oxide 8 with steel 7 surfaces, then utilize the multi-roll straightening machine 12 that planisher 11 exports to carry out repeatedly forward and reverse bending to broken oxide 8, further broken oxide 8, finally utilize brushing device 15 to carry out oxide 8 to band steel 7 surfaces and remove, three complete equipment coordinated, remove the oxide 8 on hot-strip 7 surfaces as much as possible.
In technical scheme of the present invention, comprise smooth broken phosphorus, multiple roll aligning broken phosphorus, dephosphorization, rinse eccysis phosphorus, pickling dephosphorization and mechanical surface residue cleaning technology, machinery dephosphorization efficiency by using is high, pickling time is short, acid consumption is low, the surperficial acid solution residual quantity of final products is low, and corrosion resistance is good.
The present invention has the acid reaction of shortening time function, described band steel 7 once breaks after phosphorus, 12 2 broken phosphorus of multi-roll straightening machine, brushing device 15 dephosphorization through planisher 11, form permanent, large scale oxide crackle 9 on band steel 7 surfaces, now enter again pickling 4 and carry out chemical dephosphorization, because band steel 7 surfaces possess large scale oxide crackle 9, acid solution can rapid osmotic be reacted to FeO 33, and 4 times of the pickling of straight carbon steel are shortened to 10-12s by conventional 16-22s; 4 times of dual phase steel pickling in high-strength steel are shortened to 20-25s by 35-45s.
The present invention has the function that reduces acid consumption, and described band steel once breaks after phosphorus, 12 2 broken phosphorus of multi-roll straightening machine, brushing device 15 dephosphorization through planisher 11, has removed band steel 7 surface element sub-oxides 8, has reduced chemical reaction amount, has reduced sour consumption.
In the present invention, the low corrosion resistance of product surface residual quantity of producing is good, the carbon steel product introduction machinery plate face residue removal device 20 through overpickling 4 is carried out to the cleaning of mechanical surface residue, to remove the acid solution with the surperficial convex-concave of steel 7 place.
In technical scheme of the present invention, the breaking elongation control function that comprises brokenly phosphorus process, when steel 7 oxide on surface 8 are with in planisher 11 removings, breaking elongation by planisher 11 roll-force dynamic adjustment function control planishers 11 with multi-roll straightening machine 12, and then the performance of guarantee institute rapidoprint.
As shown in Figure 5, the present invention has not to be affected under the prerequisite of strip property, remove the function of belt steel surface oxide, the combination of planisher 11, multi-roll straightening machine 12 and brushing device 15, can be in the time that band steel 7 percentage elongation be 0.8%-1.5%, form permanent, large-sized oxide crackle 9 on band steel 7 surfaces, complete fast chemical surface treatment, stopped common hot-rolled product and produced luders band 10 defects; Avoid the high-strength steel in carbon steel, IF rigidity to worsen.
The present invention possesses the ability of the cold-rolled products of producing plate shape excellence, after tentatively improving plate shape, planisher 11 enters multi-roll straightening machine 12, and according to 14 registrations of smoothing roll up and down with steel 7 thickness and material adjustment multi-roll straightening machine 12, further improve plate shape and the thickness and precision of cold rolling feeds, thereby, can produce the higher cold-rolled products of ejecting plate shape precision.
At work, being connected with the band steel 7 on entry loop 2 through welding with steel 7 on uncoiler 1, first band steel 7 enters into planisher 11, due to the Fe with steel 7 surfaces in the present invention
2o
331, Fe
3o
432 organize poor ductility, add man-hour carrying out planisher 11, band steel 7 body tissues that extend very capable are attempted to extend forward under roll-force effect, this trend is subject to the restriction of the oxide on surface 8 of poor ductility, therefore between oxide on surface 8 and band steel 7 body tissues, produce horizontal tangential power, help oxide on surface 8 from band steel 7 sur-face peelings, simultaneously, working roll 13 in planisher 11 compressive zone steel 7 under the effect of roll-force, by oxide 8 pressure breaks with steel 7 surfaces, form many fine and closely woven and crackles 9 that direction is random.
The band steel 7 when surface with above-mentioned fine and closely woven oxide crackle 9 leaves after planisher 11, enter into multi-roll straightening machine 12 and carry out the broken phosphorus of secondary, smoothing roll 14 in multi-roll straightening machine 12 makes to be with steel 7 to produce repeatedly forward and reverse bending, make to be flattened with steel 7 surfaces the further fragmentation of oxide 8 of machine 11 pressure breaks with each Forging Process of steel 7, make further to increase with the oxide crackle 9 on steel 7 oxide on surface 8, make part directly come off with the oxide 8 separating with steel 7 body tissues in planisher 11 simultaneously, in oxide 8 structures with steel 7 surfaces, form permanent oxide crackle 9, this oxide crackle 9 is still retained in band steel 7 surfaces after band steel 7 elastic recoverys, after band steel 7 enters pickling 4, acid solution can rapid osmotic be reacted to FeO 33.
Through planisher, the straight machine 12 of multiple roll sedan-chair, band steel 7 after brushing device 15 enters acid tank and carries out chemical surface treatment, due to the oxide crackle 9 that on the oxide 8 with steel 7 surfaces, quantity of formation is numerous, and, oxide crackle 9 gaps are larger, acid solution can rapid osmotic react to FeO 33, after planisher 11, carry out the processing of multi-roll straightening machine 12 and brushing device 15 with steel 7, remove the oxide 8 of part with steel 7 surfaces, reduce the reacting dose of pickling 4, reaction time and acid solution consumption, experimental data shows: after the combined treatment process in the present invention is processed, can make pickling efficiency improve 30%-50%, acid solution consumption reduces 30%-40%.
The present invention manufactures oxide crackle 9 by mechanical combination on the oxide 8 with steel 7 surfaces, and the oxide crackle 9 that forms number and the size of oxide crackle 9 irrelevant with the moulding deflection with steel 7, and the increase of yield strength with steel 7 is with relevant with the percentage elongation of steel 7, in processing, necessary deflection own is less, to fewer with the performance compromise of product after steel 7 processing, therefore, the present invention can be under the prerequisite of not damaging with steel 7 performances, on the oxide 8 with steel 7 surfaces, manufacture oxide crackle 9, to improve pickling efficiency, make in sour milling train group the efficiency matching degree of pickling 4 techniques and tandem mill higher.
Technical scheme of the present invention is applied at common hot rolling product scope, because common hot-rolled product is organized the content of intermediate gap atomic carbon, nitrogen and is greater than 30ppm, therefore, in processing and follow-up use procedure, very easily forms luders band 10 defects on band steel 7 surfaces; And planisher 11 in the present invention can be eliminated the yield point elongation with steel 7, thereby effectively stop the generation of luders band 10 defects that are difficult to the common hot-rolled product of avoiding in prior art.
High-strength steel in the present invention, the application in IF product made from steel field, high-strength steel, IF steel is in whole processing interval, the yield strength of product is the unidirectional increase with the increase of process deflection all, in order not damage material property, when production, must strictly limit percentage elongation, cause pickling efficiency extremely low, taking dual phase steel as example, general pickling time is between 35s-45s, therefore, pickling 4 efficiency that how to promote the said goods in as far as possible little deflection are large technical barriers for this series products, the present invention can not occur or only produce under the condition of very little moulding distortion and improve pickling 4 efficiency, be 20-25s by pickling 4 time shortens, solve high-strength steel, the a great problem that IF steel is produced.
Residual for reducing plate face acid solution, traditional pickling unit, adopts high-temperature rinsing technique, reduce the residual acid of plate face, but effect is unsatisfactory in actual applications by increasing molecular kinetic energy.
The present invention adopts the residual acid of mechanical type plate face to control technique, can be by residual rear pickling 4 plate face below 20% of traditional acid cleaning process that is reduced to.
As shown in Figure 6, the present invention adopts mechanical surface residue cleaning technology, by after pickling 4 with residual below 20% of traditional acid cleaning process that is reduced to of steel 7 plate faces, band steel 7 is through two, after three grades of rinsing 30 grooves, enter mechanical plate face residue removal device 20, while adopting the residual sour cleaning technology cleaning band steel of mechanical type plate face 7 upper surface, the first brush roll 21 is configured in top, below is backing roll 18, second top is backing roll 18, below is brush roll 21, two backing rolls 18 and two brush roll 21 are one group, in described brush roll 21, be not with abrasive material, and bristle is very thin, the head of very thin bristle when processing in brush roll 21 can stretch into the pit with steel 7 surfaces, residual acid in pit and other impurity are brushed out, simultaneously, can also carry out polishing to band steel 7 surfaces, improve the brightness of product surface.
In embodiments of the invention, the structure of described planisher 11, multi-roll straightening machine 12 and brushing device 15 is prior art, repeats no longer in detail to repeat in this its structure.
The above, be only better possible embodiments of the present invention, not in order to limit protection scope of the present invention.
Claims (10)
1. the anti-corrosion cold-rolled products production method of low consumption, is characterized in that, specifically comprises the steps:
A. uncoiler uncoiling;
B. planisher carries out fragmentation, peels off the oxide of belt steel surface;
C. multi-roll straightening machine to the oxide of belt steel surface further broken, peel off;
D. the removing of the scrubbing roller in brushing device belt steel surface comes off and loosening oxide;
E. will through smooth, align and scrub band steel after treatment and carry out pickling, rinsing;
F. the band steel through overpickling is entered into mechanical plate face residue removal device and carry out the cleaning of mechanical surface residue;
G. carry out cold rolling processing to entering tandem mill through the band steel of above-mentioned processing;
H. band steel after treatment is batched and becomes finished product through coiling machine.
2. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 1, it is characterized in that, this production method is flattening process, multiple roll straightening process, scrub technique, acid cleaning process, the group technology of the cleaning of mechanical surface residue and cold rolling processing technology, after processing uncoiler, dispose planisher, multi-roll straightening machine, brushing device three covers possess broken phosphorus, the process equipment of phosphorus removal functional, treated band steel enters acid tank and carries out pickling processing, and then the band steel after pickling is entered into mechanical plate face residue removal device carry out the cleaning of mechanical surface residue, finally more above-mentioned band steel is entered into tandem mill and carry out cold rolling processing.
3. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 2, it is characterized in that, comprise three mechanical types and break phosphorus, phosphorus removal functional, first planisher carries out fragmentation to the oxide of belt steel surface, then utilize the multi-roll straightening machine of planisher outlet to carry out repeatedly forward and reverse bending to broken oxide, further broken oxide, finally utilize brushing device to carry out oxide removing to belt steel surface, three complete equipment coordinated, remove the oxide of Surfaces of Hot Rolled Strip as much as possible.
4. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 2, it is characterized in that, comprise smooth broken phosphorus, multiple roll aligning broken phosphorus, dephosphorization, rinse eccysis phosphorus, pickling dephosphorization, mechanical surface residue cleaning technology, mechanical dephosphorization efficiency by using is high, pickling time is short, acid consumption is low, it is good to enter residual low, the final cold-rolled products corrosion resistance of cold rolling front belt steel surface.
5. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 3, it is characterized in that, there is the acid reaction of shortening time function, through planisher, once broken phosphorus, multi-roll straightening machine secondary break after phosphorus, brushing device dephosphorization described band steel, form permanent, large scale oxide crackle at belt steel surface, now enter again pickling and carry out chemical dephosphorization, because belt steel surface possesses large scale oxide crackle, acid solution can rapid osmotic be reacted to FeO, and the pickling time of straight carbon steel is shortened to 10-12s by conventional 16-22s; Dual phase steel pickling time in high-strength steel is shortened to 20-25s by 35-45s.
6. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 3, it is characterized in that, there is the function that reduces acid consumption, through planisher, once broken phosphorus, multi-roll straightening machine secondary break after phosphorus, brushing device dephosphorization described band steel, remove belt steel surface partial oxide, reduce chemical reaction amount, reduced sour consumption.
7. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 4, it is characterized in that, the product surface residual quantity of producing is low, corrosion resistance is good, carbon steel product introduction machinery plate face residue removal device through overpickling is carried out to the cleaning of mechanical surface residue, to remove the acid solution at belt steel surface convex-concave place.
8. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 3, it is characterized in that, the breaking elongation control function that comprises brokenly phosphorus process, when planisher is removed belt steel surface oxide, by the breaking elongation of planisher roll-force dynamic adjustment function control planisher and multi-roll straightening machine, and then the performance of guarantee institute rapidoprint.
9. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 3, it is characterized in that, have and do not affecting under the prerequisite of strip property, remove the function of belt steel surface oxide, the combination of planisher, multi-roll straightening machine and brushing device, can, in the time that band steel percentage elongation is 0.8%-1.5%, form permanent, large-sized oxide crackle at belt steel surface, complete fast chemical surface treatment, stopped common hot-rolled product and produced luders band defect; Avoid the high-strength steel in carbon steel, IF rigidity to worsen.
10. the anti-corrosion cold-rolled products production method of a kind of low consumption according to claim 3, it is characterized in that, possesses the ability of the cold-rolled products of producing plate shape excellence, after tentatively improving plate shape, planisher enters multi-roll straightening machine, and adjust the registration of smoothing roll up and down of multi-roll straightening machine according to belt steel thickness and material, further improve plate shape and the thickness and precision of cold rolling feeds, thereby, the higher cold-rolled products of ejecting plate shape precision can be produced.
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| CN111182978A (en) * | 2017-10-06 | 2020-05-19 | Sms集团有限公司 | Multipurpose rolling equipment |
| CN111468543A (en) * | 2020-05-14 | 2020-07-31 | 中冶京诚工程技术有限公司 | Strip steel descaling production line and strip steel descaling method |
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| CN111182978A (en) * | 2017-10-06 | 2020-05-19 | Sms集团有限公司 | Multipurpose rolling equipment |
| CN111182978B (en) * | 2017-10-06 | 2022-05-27 | Sms集团有限公司 | Multipurpose rolling equipment |
| CN111014315A (en) * | 2019-12-20 | 2020-04-17 | 马钢(合肥)板材有限责任公司 | Method for improving surface reflectivity of rolled hard coil strip steel |
| CN111014315B (en) * | 2019-12-20 | 2021-08-27 | 马钢(合肥)板材有限责任公司 | Method for improving surface reflectivity of rolled hard coil strip steel |
| CN111468543A (en) * | 2020-05-14 | 2020-07-31 | 中冶京诚工程技术有限公司 | Strip steel descaling production line and strip steel descaling method |
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