CN103920710B - A kind of anti-corrosion cold-rolled products production method of low consumption - Google Patents
A kind of anti-corrosion cold-rolled products production method of low consumption Download PDFInfo
- Publication number
- CN103920710B CN103920710B CN201410118164.4A CN201410118164A CN103920710B CN 103920710 B CN103920710 B CN 103920710B CN 201410118164 A CN201410118164 A CN 201410118164A CN 103920710 B CN103920710 B CN 103920710B
- Authority
- CN
- China
- Prior art keywords
- oxide compound
- band steel
- steel
- cold
- pickling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to a kind of anti-corrosion cold-rolled products production method of low consumption, specifically comprise the steps: Abrollhaspel uncoiling; The oxide compound of belt steel surface is carried out fragmentation, stripping by levelling machine; Multi-roll straightener is to broken, the stripping further of the oxide compound of belt steel surface; Brushing device removes the oxide compound that belt steel surface comes off and loosens; Treated band steel is carried out pickling, rinsing; Mechanical system is adopted to remove belt steel surface residual thing; Then above-mentioned band steel is carried out cold rolling processing; Reeling machine batches. By the technical program, 1 belt steel surface oxide compound crackle is many and gap big, pickling efficiency height; While 2 broken phosphorus, remove partial oxide, reduce pickling reacting weight, reduce acid consumption; After 3 broken phosphorus are processed, band steel yield strength increased value is low, is convenient to follow-up cold rolling processing; 4 band steel carry out cold rolling processing again after smooth, improve the plate shape precision of the finished product; 5 reduce product surface Chloride residue, it is to increase the solidity to corrosion of product.
Description
Technical field
The invention belongs to common hot rolling flat steel product field of deep, particularly relate to a kind of anti-corrosion cold-rolled products production method of low consumption.
Background technology
The pickling milling train combination machine of prior art has following notable feature: entrance configuration 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 Abrollhaspel 1, entry loop 2, straightening machine 3, pickling 4, rinsing 30, outlet looping 5, continuous mill 23 and reeling machine 6, entrance configuration 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, configuring continuous mill 23 at machine set outlet, broken phosphorus effect is undesirable causes pickling 4 efficiency low; After pickling 4, acid solution residual is serious, and residual acid enters milling train after stain emulsion, reduces product solidity to corrosion.
As shown in Figure 2, due to material its yield strength rapid increase under action of pulling stress, reduce rolling process compression ratio, and the quality of edges of band steel 7 is caused disadvantageous effect, for keeping band steel 7 rolling performance, need the setting unit elongation reducing straightening machine 3, under such conditions, after band steel 7 leaves straightening machine 3, band steel 7 body elastic recovery, band steel 7 oxide on surface crackle 9 is caused to close, therefore in pickling 4 process, acid solution is difficult to penetrate into FeO33 from closed oxide compound crackle 9, and react with it, pickling 4 efficiency is very low, in above-mentioned conventional rack, the rolling performance of pickling 4 efficiency and band steel 7 influences each other, restriction mutually, reduce production efficiency and the final product quality of product.
Band steel 7 is after overpickling 4, surface has acid solution residual, and the band steel 7 that surface quality is more poor, surface acid solution residual quantity is more big, after the chlorion of these residuals enters continuous mill 23, not only destroy the performance of emulsion, shorten its life cycle, and the chlorion remained also can directly reduce the corrosion resisting property of finished strip 7.
For reducing acid solution residual, multistage rinsing 30 method is adopted to clean band steel 7 traditionally, and in rinsing 30 process, constantly promote rinsing 30 temperature, increasing the kinetic energy of rinsing 30 groove Middle molecule, accelerate acid solution diffusion, the rinse temperature of general final rinse 30 is 85 �� of about C, adds additional the energy expenditure of production process, nonetheless, from practical condition, in final rinse 30 groove, acid strength is still at 100mg/l-150mg/l.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of anti-corrosion cold-rolled products production method of low consumption, pass through the technical program, the present invention adopts smooth aligning array mode to carry out brokenly phosphorus, dephosphorization, make the belt steel surface oxide compound quantity of formation after processing many, and be permanent oxide compound crackle, pickling efficiency height, acid consumption is low, for plate face residual after reduction pickling, mechanical surface residue clearing device it is configured with before final rinse groove, significantly reduce plate face Chloride residue, extend the work-ing life of the emulsion of application on continuous mill, improve the surface quality of final cold-rolled products.
In order to achieve the above object, the technical scheme of the present invention is achieved in that a kind of anti-corrosion cold-rolled products production method of low consumption, specifically comprises the steps:
A. Abrollhaspel uncoiling;
B. the oxide compound of belt steel surface is carried out fragmentation, stripping by levelling machine;
C. multi-roll straightener is to broken, the stripping further of the oxide compound of belt steel surface;
D. the scrubbing roller in brushing device removes the oxide compound that belt steel surface comes off and loosens;
E. by through smooth, align and band steel after scrubbing process carries out pickling, rinsing;
F. the band steel through overpickling is entered into mechanical plate face residue removal device and carry out mechanical surface residue cleaning;
G. the band steel through above-mentioned process is entered continuous mill and it is rolled processing;
H. the band steel after process is batched through reeling machine and become finished product.
The production method of the present invention is flattening process, multiple roll straightening process, scrub technique, the cleaning of acid cleaning process, mechanical surface residue and the combination process of cold rolling complete processing processed, after unit Abrollhaspel, be configured with levelling machine, processing unit that multi-roll straightener, brushing device three cover 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 mechanical surface residue cleaning, finally more above-mentioned band steel is entered into continuous mill and carries out the processing of cold rolling system.
In the technical scheme of the present invention, comprise three mechanical types broken phosphorus, phosphorus removal functionals, first the oxide compound of belt steel surface is carried out fragmentation by levelling machine, broken oxide compound is carried out repeatedly positive inverse bending by the multi-roll straightener then utilizing levelling machine to export, broken oxide compound further, finally utilize brushing device that belt steel surface is carried out oxide compound removing, three complete equipment coordinated, remove the oxide compound on hot rolled strip surface as much as possible.
In the 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 height, pickling time are short, acid consumption is low, the finished product surperficial acid solution residual quantity is low, and solidity to corrosion is good.
The present invention has shortening acid-respons time function, described band steel is after levelling machine once broken phosphorus, multi-roll straightener two broken phosphorus, brushing device dephosphorization, permanent, large size oxide compound crackle is defined at belt steel surface, now enter pickling again and carry out chemical dephosphorization, owing to belt steel surface possesses large size oxide compound crackle, acid solution can rapid osmotic be reacted to FeO, and by the 16-22s of routine, the pickling time of straight carbon steel is shortened to 10-12s; Dual phase steel pickling time in high-strength steel is shortened to 20-25s by 35-45s.
The present invention has the function reducing acid consumption, and described band steel, after levelling machine once broken phosphorus, multi-roll straightener two broken phosphorus, brushing device dephosphorization, removes belt steel surface partial oxide, decreases chemical reaction amount, reduces acid consumption.
In the present invention, the product surface residual quantity produced is low, and solidity to corrosion is good, the carbon steel product introduction mechanical plate face residue removal device through overpickling is carried out mechanical surface residue cleaning, to remove the acid solution at belt steel surface convex-concave place.
In the technical scheme of the present invention, comprise brokenly the breaking elongation controlling functions of the phosphorus course of processing, while belt steel surface oxide compound removed by levelling machine, controlled the breaking elongation of levelling machine and multi-roll straightener by levelling machine rolling load dynamic adjustment function, and then ensure the performance of institute's work material.
The present invention has under the prerequisite not affecting strip property, remove the function of belt steel surface oxide compound, the combination of levelling machine, multi-roll straightener and brushing device, can when band steel unit elongation be 0.8%-1.5%, oxide compound crackle permanent, large-sized is formed at belt steel surface, complete chemical surface treatment fast, stopped common hot-rolled product and produced L��ders bands defect; Avoid the high-strength steel in carbon steel, the deterioration of IF Steel Properties.
The present invention possesses the ability of the cold-rolled products producing plate shape excellence, tentatively improve through levelling machine and enter multi-roll straightener after plate shape, and according to the straightening roll overlap ratio up and down of belt steel thickness and material adjustment multi-roll straightener, improve plate shape and the thickness and precision of cold rolling feeds further, thus, it is possible to produce the cold-rolled products that ejecting plate shape precision is higher.
Useful effect after employing technique scheme is: a kind of anti-corrosion cold-rolled products production method of low consumption, by the technical program compared with prior art, 1 belt steel surface oxide compound crackle is many and gap big, facilitates acid solution rapid osmotic, such that it is able to significantly promote pickling efficiency; While 2 broken phosphorus, remove partial oxide, reduce pickling reacting weight, reduce acid consumption; After 3 broken phosphorus are processed, band steel yield strength increased value is low, is convenient to follow-up cold rolling processing; 4 band steel carry out cold rolling processing again after smooth, improve the plate shape precision of the finished product; 5 reduce product surface Chloride residue, it is to increase the solidity to corrosion of product.
Accompanying drawing explanation
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 rolled strip straightening front and rear surfaces oxide compound iron sheet in prior art.
Fig. 3 is the processing unit layout drawing of the present invention.
Fig. 4 is flattening process in the present invention, the broken phosphorus technique of aligning and the equipment structure chart scrubbing technique.
Fig. 5 is that in the present invention, levelling machine unit elongation is belt steel surface oxide compound 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 Abrollhaspel, 2 entry loops, 3 straightening machines, 4 pickling, 5 outlet loopings, 6 reeling machines, 7 band steel, 8 oxide compounds, 9 oxide compound crackles, 10 L��ders bandss, 11 levelling machines, 12 multi-roll straighteners, 13 working rolls, 14 straightening rolls, 15 brushing devices, 16 scrubbing rollers, 18 support rolls, 20 mechanical plate face residue removal devices, 23 continuous mill 30 rinsings, 31Fe2O3��32Fe3O4��33FeO��
Embodiment
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, cold-rolled products production method that a kind of low consumption that the present invention relates to is anti-corrosion, specifically comprises the steps:
A. Abrollhaspel 1 uncoiling;
B. the oxide compound 8 on band steel 7 surface is carried out fragmentation, stripping by levelling machine 11;
C. multi-roll straightener 12 is to broken, the stripping further of the oxide compound on band steel 7 surface;
D. the scrubbing roller 16 in brushing device 15 removes the oxide compound 8 that belt steel surface comes off and loosens;
E. by through smooth, align and band steel 7 after scrubbing process carries 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 mechanical surface residue cleaning;
G. the band steel 7 through above-mentioned process is entered continuous mill 23 and carries out the processing of cold rolling system;
H. the band steel 7 after process is batched through reeling machine 6 and become finished product.
The production method of the present invention is flattening process, multiple roll straightening process, scrub technique, acid cleaning process, the combination process of the cleaning of mechanical surface residue and cold rolling complete processing processed, levelling machine 11 it is configured with after unit Abrollhaspel 1, multi-roll straightener 12, brushing device 15 3 cover possesses broken phosphorus, the processing unit 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 mechanical surface residue cleaning, the last continuous mill 23 that entered into by above-mentioned band steel 7 again carries out the processing of cold rolling system.
In the technical scheme of the present invention, comprise three mechanical types broken phosphorus, phosphorus removal functionals, first the oxide compound 8 on band steel 7 surface is carried out fragmentation by levelling machine 11, broken oxide compound 8 is carried out repeatedly positive inverse bending by the multi-roll straightener 12 then utilizing levelling machine 11 to export, broken oxide compound 8 further, finally utilize brushing device 15 that band steel 7 surface is carried out oxide compound 8 to remove, three complete equipment coordinated, remove the oxide compound 8 on hot rolled strip 7 surface as much as possible.
In the 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 height, pickling time are short, acid consumption is low, the finished product surperficial acid solution residual quantity is low, and solidity to corrosion is good.
The present invention has shortening acid-respons time function, described band steel 7 is after levelling machine 11 once broken phosphorus, multi-roll straightener 12 2 broken phosphorus, brushing device 15 dephosphorization, permanent, large size oxide compound crackle 9 is defined on band steel 7 surface, now enter pickling 4 again and carry out chemical dephosphorization, owing to band steel 7 surface possesses large size oxide compound crackle 9, acid solution can rapid osmotic be reacted to FeO33, and by the 16-22s of routine, are shortened to 10-12s pickling 4 time of straight carbon steel; Dual phase steel pickling 4 time in high-strength steel is shortened to 20-25s by 35-45s.
The present invention has the function reducing acid consumption, and described band steel, after levelling machine 11 once broken phosphorus, multi-roll straightener 12 2 broken phosphorus, brushing device 15 dephosphorization, removes band steel 7 surface portion oxide compound 8, decreases chemical reaction amount, reduces acid consumption.
In the present invention, the low solidity to corrosion of product surface residual quantity produced is good, and the carbon steel product introduction mechanical plate face residue removal device 20 through overpickling 4 is carried out mechanical surface residue cleaning, to remove the acid solution at convex-concave place, band steel 7 surface.
In the technical scheme of the present invention, comprise brokenly the breaking elongation controlling functions of the phosphorus course of processing, while band steel 7 oxide on surface 8 removed by levelling machine 11, control the breaking elongation of levelling machine 11 with multi-roll straightener 12 by levelling machine 11 rolling load dynamic adjustment function, and then ensure the performance of institute's work material.
As shown in Figure 5, the present invention has under the prerequisite not affecting strip property, remove the function of belt steel surface oxide compound, the combination of levelling machine 11, multi-roll straightener 12 and brushing device 15, can when band steel 7 unit elongation be 0.8%-1.5%, form oxide compound crackle 9 permanent, large-sized on band steel 7 surface, complete chemical surface treatment fast, stopped common hot-rolled product and produced L��ders bands 10 defect; Avoid the high-strength steel in carbon steel, the deterioration of IF Steel Properties.
The present invention possesses the ability of the cold-rolled products producing plate shape excellence, tentatively improve through levelling machine 11 and after plate shape, enter multi-roll straightener 12, and according to straightening roll up and down 14 overlap ratio of band steel 7 thickness and material adjustment multi-roll straightener 12, improve plate shape and the thickness and precision of cold rolling feeds further, thus, it is possible to produce the cold-rolled products that ejecting plate shape precision is higher.
At work, the band steel 7 on Abrollhaspel 1 is connected with the band steel 7 on entry loop 2 through welding, and first band steel 7 enters into levelling machine 11, due to the Fe on band steel 7 surface in the present invention2O331��Fe3O432 organize poor ductility, add man-hour carrying out levelling machine 11, band steel 7 body tissue extending very capable is attempted to extend forward under rolling load 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 tissue, horizontal tangential power is produced, help oxide on surface 8 from band steel 7 sur-face peeling, simultaneously, working roll 13 in levelling machine 11 compressive belt steel 7 under the effect of rolling load, by oxide compound 8 pressure break on band steel 7 surface, form many fine and closely woven and crackles 9 that direction is random.
After the band steel 7 having an above-mentioned fine and closely woven oxide compound crackle 9 when surface leaves levelling machine 11, enter into multi-roll straightener 12 and carry out two broken phosphorus, straightening roll 14 in multi-roll straightener 12 makes band steel 7 produce repeatedly positive inverse bending, each bending process with steel 7 makes band steel 7 surface be flattened oxide compound 8 fragmentation further of machine 11 pressure break, oxide compound crackle 9 on band steel 7 oxide on surface 8 is increased further, the oxide compound 8 simultaneously making part be separated with band steel 7 body tissue in levelling machine 11 directly comes off, oxide compound 8 structure on band steel 7 surface forms permanent oxide compound crackle 9, this kind of oxide compound crackle 9 is still retained in band steel 7 surface after band steel 7 elastic recovery, after band steel 7 enters pickling 4, acid solution can rapid osmotic be reacted to FeO33.
Through levelling machine, 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 compound crackle 9 that on the oxide compound 8 on band steel 7 surface, quantity of formation is numerous, and, oxide compound crackle 9 gap is bigger, acid solution can rapid osmotic be reacted to FeO33, band steel 7 after levelling machine 11 has carried out multi-roll straightener 12 and the processing of brushing device 15, remove the oxide compound 8 on part band steel 7 surface, decrease the reacting weight of pickling 4, reaction times and acid solution consumption, experimental data shows: after the combined treatment process in the present invention processes, pickling efficiency can be made to improve 30%-50%, acid solution consumption reduces 30%-40%.
The present invention manufactures oxide compound crackle 9 by machinery array mode on the oxide compound 8 on band steel 7 surface, and it is unrelated to be formed the number of oxide compound crackle 9 and the size of oxide compound crackle 9 and the plastic deformation amount of band steel 7, and the increase of the yield strength of band steel 7 is relevant with the unit elongation of band steel 7, when in processing, necessary distortion amount itself is more little, the performance compromise that band steel 7 is processed rear product is more few, therefore, the present invention can under the prerequisite not damaging band steel 7 performance, the oxide compound 8 on band steel 7 surface manufactures oxide compound crackle 9, to improve pickling efficiency, make the efficiency matching degree of pickling 4 technique and continuous mill in sour rolling mill higher.
The technical scheme of the present invention is applied at common hot rolling product scope, due to common hot-rolled product organize interstitial atoms carbon, the content of nitrogen be greater than 30ppm, therefore, processing and follow-up use procedure in very easily band steel 7 surface formed L��ders bands 10 defect; And levelling machine 11 in the present invention can the surrender platform of cancellation band steel 7, thus effectively stopped prior art is difficult to the generation of L��ders bands 10 defect of the common hot-rolled product avoided.
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 all with the increase of course of processing distortion amount and unidirectional increase, in order to not damage material property, necessary strict limitation unit elongation during production, cause pickling efficiency extremely low, for dual phase steel, general pickling time is between 35s-45s, therefore, pickling 4 efficiency how promoting the said products in distortion amount little as far as possible is a big technical barrier of this series products, the present invention can not occur or only produce very little plastic deformation when improve pickling 4 efficiency, pickling 4 time is shortened to 20-25s, solve high-strength steel, the big difficult problem that IF steel is produced.
For reducing plate face acid solution residual, tradition pickling unit, adopts high-temperature rinsing technique, reduces the residual acid in plate face by increasing molecular kinetic energy, but effect is unsatisfactory in actual applications.
The present invention adopts the residual acid in mechanical type plate face Controlling Technology, and the residual of plate face after pickling 4 can be reduced to less than the 20% of tradition acid cleaning process.
As shown in Figure 6, the present invention adopts mechanical surface residue cleaning technology, band steel 7 plate face residual after pickling 4 is reduced to less than the 20% of tradition acid cleaning process, band steel 7 is through two, mechanical plate face residue removal device 20 is entered after three grades of rinsing 30 grooves, when adopting mechanical type plate face residual acid cleaning technology cleaning tape steel 7 upper surface, first brush roll 21 is configured in top, lower section is support roll 18, 2nd top is support roll 18, lower section is brush roll 21, two support rolls 18 and two brush roll 21 are one group, not band abrasive material in described brush roll 21, and bristle is very thin, during process, the head of the very thin bristle in brush roll 21 can stretch into the pit on band steel 7 surface, residual acid in pit and other impurity are brushed out, simultaneously, band steel 7 surface can also be carried out polished finish, improve the luminance brightness of product surface.
In embodiments of the invention, the structure of described levelling machine 11, multi-roll straightener 12 and brushing device 15 is prior art, repeats to repeat no longer in detail in this its structure.
The above, be only the present invention better possible embodiments, it does not mean to limit protection scope of the present invention.
Claims (10)
1. the anti-corrosion cold-rolled products production method of low consumption, it is characterised in that, specifically comprise the steps:
A. Abrollhaspel uncoiling;
B. the oxide compound of belt steel surface is carried out fragmentation, stripping by levelling machine;
C. multi-roll straightener is to broken, the stripping further of the oxide compound of belt steel surface;
D. the scrubbing roller in brushing device removes the oxide compound that belt steel surface comes off and loosens;
E. by through smooth, align and band steel after scrubbing process carries out pickling, rinsing;
F. the band steel through overpickling is entered into mechanical plate face residue removal device and carry out mechanical surface residue cleaning;
G. the band steel through above-mentioned process is entered continuous mill and carries out the processing of cold rolling system;
H. the band steel after process is batched through reeling machine and become finished product.
2. a kind of anti-corrosion cold-rolled products production method 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 combination process of the cleaning of mechanical surface residue and cold rolling complete processing processed, it is configured with levelling machine after unit Abrollhaspel, multi-roll straightener, brushing device three cover possesses broken phosphorus, the processing unit 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 mechanical surface residue cleaning, the last continuous mill that entered into by above-mentioned band steel again carries out the processing of cold rolling system.
3. a kind of anti-corrosion cold-rolled products production method of low consumption according to claim 2, it is characterized in that, comprise three mechanical types broken phosphorus, phosphorus removal functionals, first the oxide compound of belt steel surface is carried out fragmentation by levelling machine, broken oxide compound is carried out repeatedly positive inverse bending by the multi-roll straightener then utilizing levelling machine to export, broken oxide compound further, finally utilize brushing device that belt steel surface is carried out oxide compound removing, three complete equipment coordinated, remove the oxide compound on hot rolled strip surface as much as possible.
4. a kind of anti-corrosion cold-rolled products production method 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, machinery dephosphorization efficiency by using height, pickling time are short, acid consumption is low, residual cold-rolled products solidity to corrosion low, final is good to enter cold rolling front belt steel surface.
5. a kind of anti-corrosion cold-rolled products production method of low consumption according to claim 3, it is characterized in that, have and shorten acid-respons time function, described band steel is after levelling machine once broken phosphorus, multi-roll straightener two broken phosphorus, brushing device dephosphorization, permanent, large size oxide compound crackle is defined at belt steel surface, now enter pickling again and carry out chemical dephosphorization, owing to belt steel surface possesses large size oxide compound crackle, acid solution can rapid osmotic be reacted to FeO, and by the 16-22s of routine, the pickling time of straight carbon steel is shortened to 10-12s; Dual phase steel pickling time in high-strength steel is shortened to 20-25s by 35-45s.
6. a kind of anti-corrosion cold-rolled products production method of low consumption according to claim 3, it is characterized in that, there is the function reducing acid consumption, described band steel is after levelling machine once broken phosphorus, multi-roll straightener two broken phosphorus, brushing device dephosphorization, remove belt steel surface partial oxide, decrease chemical reaction amount, reduce acid consumption.
7. a kind of anti-corrosion cold-rolled products production method of low consumption according to claim 4, it is characterized in that, the product surface residual quantity produced is low, solidity to corrosion is good, carbon steel product introduction mechanical plate face residue removal device through overpickling is carried out mechanical surface residue cleaning, to remove the acid solution at belt steel surface convex-concave place.
8. a kind of anti-corrosion cold-rolled products production method of low consumption according to claim 3, it is characterized in that, comprise brokenly the breaking elongation controlling functions of the phosphorus course of processing, while belt steel surface oxide compound removed by levelling machine, controlled the breaking elongation of levelling machine and multi-roll straightener by levelling machine rolling load dynamic adjustment function, and then ensure the performance of institute's work material.
9. a kind of anti-corrosion cold-rolled products production method of low consumption according to claim 3, it is characterized in that, have under the prerequisite not affecting strip property, remove the function of belt steel surface oxide compound, the combination of levelling machine, multi-roll straightener and brushing device, it is possible to when band steel unit elongation is 0.8%-1.5%, form oxide compound crackle permanent, large-sized at belt steel surface, complete chemical surface treatment fast, stopped common hot-rolled product and produced L��ders bands defect; Avoid the high-strength steel in carbon steel, the deterioration of IF Steel Properties.
10. a kind of anti-corrosion cold-rolled products production method of low consumption according to claim 3, it is characterized in that, possesses the ability of the cold-rolled products producing plate shape excellence, tentatively improve through levelling machine and enter multi-roll straightener after plate shape, and according to the straightening roll overlap ratio up and down of belt steel thickness and material adjustment multi-roll straightener, improve plate shape and the thickness and precision of cold rolling feeds further, thus, it is possible to produce the cold-rolled products that ejecting plate shape precision is higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118164.4A CN103920710B (en) | 2014-03-27 | 2014-03-27 | A kind of anti-corrosion cold-rolled products production method of low consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118164.4A CN103920710B (en) | 2014-03-27 | 2014-03-27 | A kind of anti-corrosion cold-rolled products production method of low consumption |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103920710A CN103920710A (en) | 2014-07-16 |
| CN103920710B true CN103920710B (en) | 2016-06-01 |
Family
ID=51139241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410118164.4A Active CN103920710B (en) | 2014-03-27 | 2014-03-27 | A kind of anti-corrosion cold-rolled products production method of low consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103920710B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018207026A1 (en) * | 2017-10-06 | 2019-04-11 | Sms Group Gmbh | Multiflexible rolling mill |
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56127777A (en) * | 1980-03-12 | 1981-10-06 | Nippon Kokan Kk <Nkk> | Descaling method for steel member |
| JPS62151590A (en) * | 1985-12-26 | 1987-07-06 | Nippon Steel Corp | Equipment for recovering sensible heat of metallic strip and pickling said strip |
| JP2701636B2 (en) * | 1991-12-26 | 1998-01-21 | 住友金属工業株式会社 | Descaling method of hot rolled steel strip |
| FR2740061B1 (en) * | 1995-10-19 | 1997-11-28 | Ugine Sa | PROCESS FOR THE CONTINUOUS DEVELOPMENT OF A STRIP OF LAMINATED SHEET OF STAINLESS STEEL HAVING AN IMPROVED SURFACE CONDITION |
| JP2000204489A (en) * | 1999-01-11 | 2000-07-25 | Nisshin Steel Co Ltd | Control of pickling condition |
| JP5092966B2 (en) * | 2008-07-23 | 2012-12-05 | 住友金属工業株式会社 | Continuous pickling cold rolling equipment and manufacturing method of cold rolled material |
-
2014
- 2014-03-27 CN CN201410118164.4A patent/CN103920710B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103920710A (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102744277B (en) | Method for producing cold-rolled stainless steel annealing and pickling brand steel | |
| CN102083562B (en) | Method and facility for removing scale from hot rolled steel sheet | |
| CN1065458C (en) | Process for continuous production of rolled stainless steel sheet strip and continuous production line for carrying out process | |
| CN105586600B (en) | A kind of cold rolled annealed acid cleaning process of two phase stainless steel | |
| CN103920727B (en) | A kind of low consumption anti-corrosion great surface quality hot rolling acid-cleaning product processes | |
| CN103920739B (en) | A kind of low acid consumes great surface quality with heat for cold product processes | |
| CN103920710B (en) | A kind of anti-corrosion cold-rolled products production method of low consumption | |
| CN103920736B (en) | A kind of belt steel surface oxide sweep-out method of low acid consumption carbon steel | |
| CN103921059B (en) | A kind of low acid consumption cold-rolled steel strip products production method | |
| KR101789267B1 (en) | Cold state metal plate strip surface treatment system and treatment method thereof | |
| CN103921067B (en) | A kind of low acid consumption great surface quality cold-rolled products production method | |
| CN103924254B (en) | A kind of low acid consumption is anti-corrosion with heat for cold product processes | |
| TW202033287A (en) | Method for manufacturing of stainless steel strips | |
| CN103920741B (en) | A kind of anti-corrosion great surface quality of low consumption with heat for cold product processes | |
| CN103920708B (en) | A kind of low consumption anti-corrosion great surface quality cold-rolled products production method | |
| CN104245171A (en) | Method and device for descaling a scaled metal strip | |
| CN108031717A (en) | A kind of pickling phosphorus removing method of Cold-strip Steel Surface | |
| CN104128382B (en) | A kind of low acid consumes anti-corrosion hot rolling acid-cleaning product processes | |
| CN103920738B (en) | A kind of low acid consumes with heat for cold belt product made from steel production method | |
| CN103920725B (en) | A kind of low plate face of great surface quality remains pickling process | |
| CN103920737B (en) | The belt steel surface oxide compound removing method of a kind of carbon steel | |
| CN103921058B (en) | A kind of belt steel surface oxide sweep-out method of low acid consumption great surface quality | |
| CN105363779A (en) | Device for producing cold-rolled precise plate strip and operating method of device | |
| CN103920740B (en) | A kind of low plate face remains with heat for cold product processes | |
| CN103920726A (en) | High-surface-quality carbon steel pickling technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |