CN103920741B - A kind of anti-corrosion great surface quality of low consumption with heat for cold product processes - Google Patents
A kind of anti-corrosion great surface quality of low consumption with heat for cold product processes Download PDFInfo
- Publication number
- CN103920741B CN103920741B CN201410118459.1A CN201410118459A CN103920741B CN 103920741 B CN103920741 B CN 103920741B CN 201410118459 A CN201410118459 A CN 201410118459A CN 103920741 B CN103920741 B CN 103920741B
- Authority
- CN
- China
- Prior art keywords
- steel
- strip steel
- oxide
- mechanical
- 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 anti-corrosion great surface quality of a kind of low consumption that the present invention relates to for cold product processes, specifically includes following steps with heat: uncoiler uncoiling；The oxide of belt steel surface is crushed by planisher；Multi-roll straightening machine broken, stripping further；Brushing device is removed partial oxide；Treated strip steel is carried out pickling, rinsing；Strip steel enters into mechanical lapping equipment and repairs surface defect；Mechanical system is used to remove belt steel surface residual thing；Coiling machine batches.By this programme, facilitate acid solution rapid osmotic, promote pickling efficiency；Remove partial oxide, reduce pickling response magnitude, reduce acid consumption；After broken phosphorus processing, strip steel yield strength value added is low, and performance is substantially unaffected；Stop at the common hot rolling product surface luders band through being commonly formed；Ground by mechanical surface, improve the surface quality of strip steel；Clear up by mechanical surface residue, improve product corrosion resistance.
Description
Technical field
The invention belongs to common hot rolled flat material deep process technology field, particularly relate to a kind of low consumption anti-corrosion high surface matter
Measure with heat for cold product processes.
Background technology
As it is shown in figure 1, traditional pickling unit is by uncoiler 1, entry loop 2, withdrawal straightening machine 3, pickling 4, rinsing 30, outlet
Kink 5, polishing machine 22 and coiling machine 6 are constituted, and use withdrawal straightening machine 3 to carry out the broken phosphorus of machinery, are restricted, during unit pickling by broken phosphorus effect
Between long, efficiency is low, after pickling 4, product surface is chemical reaction surface, there is aberration and various surface quality defect, by light
It is difficult to reach the run-of-the-mill requirement of cold-reduced sheet after whole.
As in figure 2 it is shown, cause the main cause that pickling 4 efficiency consumption low, sour is high to be the broken phosphorus principle of withdrawal straightening machine 3 and keep producing
There is contradiction between product performance requirement, in withdrawal straightening machine 3 work process, the oxide 8 on strip steel 7 surface is in tension and bending stress
Effect is lower forms the oxide crackle 9 consistent with strip width direction, after withdrawal straightening machine 3, strip steel 7 elastic recovery, makes strip steel 7
The oxide crackle 9 that surface has produced closes.
For keeping strip steel 7 performance, need to be arranged on strip steel yield limit the elongation percentage of withdrawal straightening machine 3, make strip steel 7 produce
Raw plastic deformation, under such conditions, strip steel 7 can partly keep the gap of oxide on surface 8 after leaving withdrawal straightening machine 3, promotes
Pickling efficiency, but, the performance loss of product is serious, for the conventional hot rolled plate of the interstitial atom such as carbon, nitrogen content >=30ppm,
Uneven surface surrender can be produced at belt steel surface after straightening, be commonly called as luders band 10；For high-strength steel, IF steel, although will not
Luders band 10 is produced at belt steel surface, but, due to the unidirectional increase along with the increase of elongation percentage of its yield strength, therefore,
Strengthen elongation percentage and can deteriorate properties of product undoubtedly.
As shown in Figure 4 and Figure 5, after carrying out pickling 4, the main cause of product surface quality difference is that the final surface of product is
Directly chemical reaction surface, in the ideal situation, the oxide 8 on strip steel 7 surface, from top layer to oxide 8 difference of nexine
For Fe2O3 31、Fe3O432, FeO 33, above-mentioned three kinds of oxides 8 are different with the complexity of acid reaction, are positioned under
The FeO 33 of layer the most easily reacts with pickling 4, and in this state, acid solution is basic with the response time of oxide 8 and strip steel 7 body
Identical, after pickling 4, strip steel 7 surface quality is uniform；But, in actual production, part Fe3O4 32 can be deposited on strip steel 7 surface,
Due to Fe3O432 is different with the response time of acid solution from FeO 33, thus cause the uneven reaction between acid solution and strip steel 7, cause
Make strip steel 7 surface quality after pickling 4 can not meet the use requirement of overwhelming majority product.
Strip steel is after overpickling 4, and surface has acid solution residual, and, for the strip steel 7 that surface quality is the poorest, surface acid
Liquid residual quantity is the biggest, and chloride ion meeting heavy corrosion strip steel 7 surface of these residuals, making strip steel 7 surface is yellow or yellowish green mottle
Mark, and not as normal strip steel light after the rolling of these strip steel 7, the most easily there is corrosion again in finished product.
For reduce acid solution residual, use traditionally multistage rinsing 30 method clean strip steel 7, and rinsing 30 during not
Disconnected rinsing 30 temperature that promote, the kinetic energy of increase rinsing 30 groove Middle molecule, accelerates acid solution diffusion, the rinsing 30 of general final rinse 30
Temperature is 85 ° of about C, adds additional the energy expenditure of production process, and nonetheless, in terms of practical condition, final stage is floated
Wash in 30 grooves acid strength still at 100mg/l-150mg/l.
Summary of the invention
In view of this, present invention is primarily targeted at a kind of anti-corrosion great surface quality of low consumption of offer raw for cold product with heat
Product method, by the technical program, including smooth, multiple roll aligning, brush roll combination type dephosphorization, efficient pickling, rinsing, mechanical type table
Face is ground, mechanical surface residue is cleared up, even surface roughness finishing processes five process sections, combination type dephosphorization work
Skill, uses smooth aligning to scrub compound mode and carries out brokenly phosphorus, dephosphorization, makes the belt steel surface oxide quantity of formation after processing many,
And be permanent oxide crackle, promote pickling efficiency, reduce pickling consumption, when processing common hot-rolled product, can keep away
Exempt from luders band defect, when processing high-strength steel, IF product made from steel, make performance losses minimum, efficient acid cleaning process, use short acid tank
Quickly pickling, is greatly reduced acid consumption, uses mechanical surface to grind and mechanical surface residue cleaning technology, after eliminating pickling
The aberration of belt steel surface and tiny flaw, promote the product surface quality after pickling；Removing belt steel surface remains, and passes through strip steel
Carry out finishing process, make belt steel surface roughness homogenization.
In order to achieve the above object, the technical scheme is that and be achieved in that: a kind of low consumption anti-corrosion great surface quality
With heat for cold product processes, specifically include following steps:
A. uncoiler uncoiling；
B. the oxide of belt steel surface is crushed, peels off by planisher；
C. multi-roll straightening machine oxide broken, the stripping further to belt steel surface；
D. the scrubbing roller in brushing device removes the oxide that belt steel surface comes off and loosens；
E. by through smooth, align and scrub process after strip steel carry out pickling, rinsing；
F. the strip steel through overpickling is entered into mechanical lapping equipment and carries out mechanical surface grinding reparation surface defect；
G. the strip steel ground through mechanical surface is entered into mechanical plate face residue removal device and carries out mechanical surface
Residue is cleared up；
H. the strip steel through above-mentioned processing is entered polishing machine and carry out the process of even surface roughness surface finishing;
I. the strip steel after processing batches through coiling machine becomes finished product.
In technical scheme, production method is flattening process, multiple roll straightening process, scrub technique, acid cleaning process,
Mechanical surface grinding technics, mechanical surface residue cleaning technology and the group technology of surface finishing technique, at unit
Be configured with planisher after uncoiler, multi-roll straightening machine, brushing device three set possess the process equipment of broken phosphorus, phosphorus removal functional, warp
Cross the strip steel entrance acid tank processed and carry out pickling processing, then the strip steel after pickling is entered into mechanical lapping equipment and carry out machinery
Formula surface grinding, then carries out mechanical surface residue cleaning by the strip steel after mechanical surface milled processed, the most right
Strip steel through above-mentioned process carries out the surface finishing of even surface roughness and processes.
In the technical program, comprise three mechanical types and break phosphorus, phosphorus removal functional, the first planisher oxide to belt steel surface
Crushing, the multi-roll straightening machine oxide to having crushed followed by planisher outlet carries out the most forward and reverse bending,
The most broken oxide, finally utilizes brushing device that belt steel surface carries out oxide removing, three complete equipment coordinated, uses up
May how to remove the oxide of Surfaces of Hot Rolled Strip.
In the technical program, including smooth broken phosphorus, multiple roll aligning broken phosphorus, dephosphorization, rinse dephosphorization, pickling dephosphorization, mechanical type
Surface grinding, the cleaning of mechanical surface residue and surface finishing technique, machinery dephosphorization efficiency is high, pickling time consumption short, sour
Low, strip surface quality good, final products surface acid solution residual quantity is low, corrosion resistance is good, and surface finish is high.
The present invention has shortening acid reaction time function, and described strip steel once breaks phosphorus, multi-roll straightening machine two through planisher
Define permanent, large scale oxide crackle at belt steel surface after secondary broken phosphorus, brushing device dephosphorization, now enter back into pickling and enter
Row chemical dephosphorization, owing to belt steel surface possesses large scale oxide crackle, acid solution can rapid osmotic be reacted to FeO, will
The pickling time of straight carbon steel is shortened to 10-12s by conventional 16-22s；By the dual phase steel pickling time in high-strength steel by 35-45s
Shorten to 20-25s.
The present invention has the function reducing acid consumption, and described strip steel once breaks phosphorus through planisher, multi-roll straightening machine secondary breaks
After phosphorus, brushing device dephosphorization, remove belt steel surface partial oxide, decrease chemical reaction amount, reduce acid consumption.
In technical scheme, the product surface quality produced is high, acid solution residual quantity is low, and corrosion resistance is good, to warp
The carbon steel product of overpickling enters mechanical lapping equipment and carries out mechanical surface grinding, to improve the surface quality of acid-washed product,
Strip steel after mechanical surface milled processed enters into mechanical plate face residue removal device, and to carry out mechanical surface residue clear
Reason, to remove the residue at belt steel surface convex-concave, improves product corrosion resistance.
In technical scheme, the breaking elongation comprising brokenly the phosphorus course of processing controls function, removes band at planisher
While steel oxide on surface, controlled the overall elongation of planisher and multi-roll straightening machine by planisher roll-force dynamic adjustment function
Rate, and then ensure the performance of institute's rapidoprint.
The present invention has on the premise of not affecting strip property, removes the function of belt steel surface oxide, planisher, many
Roller straightener can be formed permanent, big when strip steel elongation percentage is 0.8%-1.5% with the combination of brushing device at belt steel surface
The oxide crackle of size, is rapidly completed chemical surface treatment, has stopped common hot-rolled product and has produced luders band defect；Avoid
High-strength steel, IF Steel Properties deteriorate.
The present invention possesses the ability producing the excellent cold-rolled products of plate shape, and it is laggard that strip steel tentatively improves plate shape through planisher
Enter multi-roll straightening machine, and according to belt steel thickness and the smoothing roll registration up and down of material adjustment multi-roll straightening machine, improve further
The plate shape of cold rolling feeds and thickness and precision, thus produce ejecting plate shape precision higher hot rolling acid-cleaning product through polishing machine.
Use after technique scheme and provide the benefit that: a kind of anti-corrosion great surface quality of low consumption with heat for cold production
Method, by the technical program, after 1 processing, the crackle on belt steel surface iron scale is many and gap big, facilitates acid solution quickly to ooze
Thoroughly, therefore, it can be obviously improved pickling efficiency；2 while broken phosphorus, removes partial oxide, reduces pickling response magnitude, reduces
Acid consumption；3 break phosphorus processing after strip steel yield strength value added low, strip property is substantially unaffected；4 are disappeared by the processing of planisher
Except the yield point elongation of strip steel, stop at the common hot rolling product surface luders band through being commonly formed；5 pass through mechanical surface
Grind, improve the surface quality of strip steel；6 clear up by mechanical surface residue, improve product corrosion resistance.
Accompanying drawing explanation
Fig. 1 is that phosphorus schematic diagram is broken in the straightening that in prior art, conventional acid washing machine group uses.
Fig. 2 is the view of hot-strip straightening front and rear surfaces oxide iron sheet in prior art.
Fig. 3 is the luders band sample picture that in prior art, common hot rolled plate surface often produces after straightening.
Fig. 4 is belt steel surface preferable oxide structure picture.
Fig. 5 is the oxide structure picture that belt steel surface is actual.
Fig. 6 is the strip surface quality picture after prior art pickling.
Fig. 7 is the process equipment layout drawing of the present invention.
Fig. 8 is flattening process in the present invention, the broken phosphorus technique of aligning and the equipment structure chart scrubbing technique.
Fig. 9 is belt steel surface oxide crackle state picture under planisher elongation percentage is 0.8%-1.5% state in the present invention.
Mechanical lapping equipment structural representation in Figure 10 present invention.
Mechanical plate face residue removal apparatus structure schematic diagram in Figure 11 present invention.
In figure, 1 uncoiler, 2 entry loops, 3 withdrawal straightening machines, 4 pickling, 5 outlet loopings, 6 coiling machines, 7 strip 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 roller, 17 mechanical lapping equipments, 18 backing rolls, 19 mixing rolls, 20 mechanical plate face residue removal devices, 21 brush roll, 22 light
Complete machine, 30 rinsings, 31 Fe2O3、32 Fe3O4、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 7 and Figure 8, the anti-corrosion great surface quality of a kind of low consumption that the present invention relates to heat for cold production side
Method, specifically includes following steps:
A. uncoiler 1 uncoiling；
B. the oxide 8 on strip steel 7 surface is crushed, peels off by planisher 11；
C. the multi-roll straightening machine 12 oxide 8 broken, the stripping further to strip steel 7 surface；
D. the scrubbing roller 16 in brushing device 15 removes the oxide 8 that strip steel 7 surface comes off and loosens；
E. by through smooth, align and scrub process after strip steel 7 carry out pickling 4, rinsing 30；
F. the strip steel 7 through overpickling 4 is entered into mechanical lapping equipment 17 carry out mechanical surface grind repair surface lack
Fall into；
G. the strip steel 7 ground through mechanical surface is entered into mechanical plate face residue removal device 20 and carry out mechanical type table
Face residue cleaning；
H. the strip steel 7 after processing batches through coiling machine 6 becomes finished product.
Production method in technical scheme is flattening process, multiple roll straightening process, scrub technique, pickling work
Skill, mechanical surface grinding technics and the group technology of mechanical surface residue cleaning technology, after processing uncoiler 1
Be configured with planisher 11, multi-roll straightening machine 12, brushing device 15 3 set possess the process equipment of broken phosphorus, phosphorus removal functional, through place
The strip steel 7 of reason enters acid tank to carry out pickling 4 and processes, and then the strip steel 7 after pickling 4 is entered into mechanical lapping equipment 17 and carries out machine
Tool formula surface grinding, the strip steel 7 after grinding mechanical surface the most again enters into mechanical plate face residue removal device 20 to be carried out
Mechanical surface residue is cleared up.
In technical scheme, comprise three mechanical types and break phosphorus, phosphorus removal functional, first planisher 11 to strip steel 7 table
The oxide 8 in face crushes, and the oxide 8 crushed is carried out by the multi-roll straightening machine 12 followed by planisher 11 outlet
The most forward and reverse bending, the most broken oxide 8, finally utilize brushing device 15 that strip steel 7 surface is carried out oxide 8 clear
Remove, three complete equipment coordinated, remove the oxide 8 on hot-strip 7 surface as much as possible.
In technical scheme, including smooth broken phosphorus, multiple roll aligning broken phosphorus, dephosphorization, rinse dephosphorization, pickling dephosphorization,
Mechanical surface is ground, mechanical surface residue cleaning technology, and machinery dephosphorization efficiency is high, pickling time consumption short, sour is low, strip steel
7 surface quality are good, final products surface acid solution residual quantity is low, and corrosion resistance is good.
The present invention has shortening acid reaction time function, and described strip steel 7 once breaks phosphorus, multi-roll straightening machine through planisher 11
Define permanent, large scale oxide crackle 9 after 12 2 broken phosphorus, brushing device 15 dephosphorization on strip steel 7 surface, enter the most again
Enter pickling 4 and carry out chemical dephosphorization, owing to strip steel 7 surface possesses large scale oxide crackle 9, acid solution can rapid osmotic to FeO
33 react, and by conventional 16-22s, the pickling time of straight carbon steel is shortened to 10-12s；By the dual phase steel acid in high-strength steel
Time of washing is shortened to 20-25s by 35-45s.
The present invention has the function reducing acid consumption, and described strip steel 7 once breaks phosphorus, multi-roll straightening machine 12 2 through planisher 11
After secondary broken phosphorus, brushing device 15 dephosphorization, remove strip steel 7 surface portion oxide 8, decrease chemical reaction amount, reduce acid
Consumption.
In technical scheme, the product surface quality produced is high, acid solution residual quantity is low, and corrosion resistance is good, to warp
The carbon steel product of overpickling 4 enters mechanical lapping equipment 17 and carries out mechanical surface grinding, to improve the surface matter of pickling 4 product
Amount, the strip steel 7 after mechanical surface milled processed enters into mechanical plate face residue removal device 20, and to carry out mechanical surface residual
Stay thing to clear up, to remove the residue at strip steel 7 surface relief, improve product corrosion resistance.
In technical scheme, the breaking elongation comprising brokenly the phosphorus course of processing controls function, removes at planisher 11
While strip steel 7 oxide on surface 8, control planisher 11 and multi-roll straightening machine by planisher 11 roll-force dynamic adjustment function
The breaking elongation of 12, and then ensure the performance of institute's rapidoprint.
As it is shown in figure 9, the present invention has on the premise of not affecting strip property, remove the merit of belt steel surface oxide
Can, planisher 11, multi-roll straightening machine 12 can carry when strip steel 7 elongation percentage is 0.8%-1.5% with the combination of brushing device 15
Steel 7 surface forms oxide crackle 9 permanent, large-sized, is rapidly completed chemical surface treatment, has stopped common hot-rolled product
Produce luders band 10 defect；High-strength steel, IF Steel Properties is avoided to deteriorate.
The present invention possesses the ability producing the excellent cold-rolled products of plate shape, and strip steel is after planisher 11 tentatively improves plate shape
Enter multi-roll straightening machine 12, and according to belt steel thickness and smoothing roll up and down 14 registration of material adjustment multi-roll straightening machine 12, enter
One step improves plate shape and the thickness and precision of cold rolling feeds, thus produces ejecting plate shape precision higher hot rolling acid-cleaning product.
At work, the strip steel 7 on uncoiler 1 is connected with the strip steel 7 on entry loop 2 present invention through welding, strip steel 7
It is first in planisher 11, due to the Fe on strip steel 7 surface2O3 31、Fe3O432 tissue poor ductility, are carrying out planisher
11 add man-hour, and strip steel 7 body tissue extending very capable attempts to extend forward under roll-force effect, and this trend is prolonged
The restriction of the oxide on surface 8 of malleability difference, therefore produces horizontal tangential power, side between oxide on surface 8 and strip steel 7 body tissue
Helping oxide on surface 8 to peel off from belt steel surface, meanwhile, the working roll 13 in planisher 11 extrudes strip steel under the effect of roll-force
7, by oxide 8 pressure break on strip steel 7 surface, form many fine and closely woven and that direction is random crackle 9.
When surface has after the strip steel 7 of above-mentioned fine and closely woven oxide crackle 9 leaves planisher 11, enter into multi-roll straightening machine 12
Carrying out secondary and break phosphorus, the smoothing roll 14 in multi-roll straightening machine 12 makes strip steel 7 produce the most forward and reverse bending, each folding of strip steel 7
Bend through the oxide 8 that journey makes strip steel 7 surface be flattened machine 11 pressure break to crush further, make on strip steel 7 oxide on surface 8
Oxide crackle 9 increases further, makes the oxide 8 that part has separated in planisher 11 with strip steel 7 body tissue simultaneously
Directly coming off, form permanent oxide crackle 9 in oxide 8 structure on strip steel 7 surface, this oxide crackle 9 is at band
Remaining in strip steel 7 surface after steel 7 elastic recovery, after strip steel 7 enters pickling 4, acid solution can rapid osmotic be entered to FeO 33
Row reaction.
After planisher 11 and the straight machine of multiple roll sedan-chair 12, strip steel 7 enters in the scrubbing roller 16 of brushing device 15, is scrubbing
Under the rotation of roller 16, the tinsel bristle on scrubbing roller 16 constantly scrubs strip steel 7 surface, and extend into the crack of oxide 8
In, will separate with strip steel 7 body but the most unpeeled oxide 8 is removed further.
Due to the oxide crackle 9 that on the oxide 8 on strip steel 7 surface, quantity of formation is numerous, and oxide crackle 9
Gap is relatively big, and acid solution can react to FeO 33 with rapid osmotic, and in the present invention, the strip steel 7 after planisher 11 enters
Multi-roll straightening machine 11 and brushing device 15 are processed, and remove the oxide 8 on part strip steel 7 surface, decrease pickling 4
Response magnitude, response time 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%, and acid solution consumption reduces 30%-40%.
The present invention is to manufacture oxide crackle 9 on the oxide 8 on strip steel 7 surface by mechanical combination mode, and institute's shape
Become oxide crackle 9 number and the size of oxide crackle 9 and the plastic deformation amount of strip steel 7 unrelated, and the surrender of strip steel 7
The increase of intensity is relevant with the elongation percentage of strip steel 7, when deflection necessary to strip steel 7 in processing is the least, produces after processing strip steel 7
The performance compromise of product is the fewest, and therefore, technical scheme is compared with straightening technique of the prior art, it is possible to do not damaging
On the premise of strip steel 7 performance, the oxide 8 on strip steel 7 surface manufactures oxide crackle 9, to improve pickling 4 efficiency.
Technical scheme is applied at common hot rolling product scope, due to common hot-rolled product tissue interstitial atoms
Carbon, the content of nitrogen are more than 30ppm, therefore, easily form luders band 10 during processing and follow-up use on strip steel 7 surface
Defect；And the planisher 11 in the present invention can eliminate the yield point elongation of strip steel 7, thus effectively stop in prior art very
The generation of luders band 10 defect of the common hot-rolled product that difficulty is avoided.
Technical scheme is high-strength steel, the application of IF product made from steel field at carbon steel, owing to high-strength steel, IF steel are whole
In processing interval, the yield strength of product is all with the increase of course of processing deflection and unidirectional increase, in order to not damage material
Performance own, must strictly limit elongation percentage, cause pickling 4 extremely inefficient during production, as a example by the dual phase steel in high-strength steel, and one
As the pickling time of pickling 4 need between 35s-45s, therefore, how under the least deflection premise, promote above-mentioned product
The work efficiency of the pickling 4 of product is a big technical barrier of this series products, and the present invention not occurring or can only produce the least moulding
Under conditions of deformation, improve pickling 4 efficiency, the pickling time of pickling 4 is shortened 10-20s, substantially increase work effect
Rate, and solve a great problem in high-strength steel in carbon steel, the production of IF steel.
Owing to before pickling 4, the oxide 8 on strip steel 7 surface also exists Fe3O4The deposition of 32, therefore, the band after overpickling 4
Steel 7 surface there are still color and luster inequality as shown in Figure 6 and tiny flaw, and these surface quality defects are that restriction is with hot Dai Leng
A key technology difficult problem, the present invention uses two-step process for treating surface, by mechanical lapping equipment 17, carries out on strip steel 7 surface
Mechanical surface is ground, to reach Surface uniformization process, and the common surface quality promoting pickling 4 product.
As shown in Figure 10, in the present invention mechanical lapping equipment 17 be mechanical surface grind, strip steel 7 from acid tank out after
Entering mechanical lapping equipment 17 after entering one-level rinsing 21 removing part surface acid solution, mechanical lapping equipment 17 uses with AlO
The mixing roll 19 of abrasive material carries out surface process to strip steel 7, and the granularity of the subsidiary abrasive material of mixing roll 19 determines the coarse of strip steel 7 surface
Degree.
In the present invention, mechanical lapping equipment 17 is when clearing up strip steel 7 upper surface, and first mixing roll 19 is arranged in top, under
Side is backing roll 18, and second is arranged above backing roll 18, and lower section is mixing roll 19, and two backing rolls 18 and two mixing rolls 19 are
One group, mixing roll 19 and the backing roll 18 of more than one group, described grinding according to the requirement of finished strip 7 surface quality, can be configured
Roller 19, rubs and abrasive lapping at mixing roll 19 at strip steel 7 surface high speed rotating with the speed of 1000m/min-3000m/min
Common effect under, remove tiny flaw and the aberration on strip steel 7 surface.
Classical acid washing machine group, uses high-temperature rinsing technique, reduces the residual acid in plate face by increasing molecular kinetic energy, but should in reality
Unsatisfactory by middle effect, as shown in figure 11, the present invention uses mechanical surface residue cleaning technology, by the plate face after pickling
Residual is reduced to less than the 20% of tradition acid cleaning process, and strip steel 7 enters mechanical surface residue after two, three grades of rinsings 30
Cleaning technology, during cleaning strip steel 7 upper surface, first brush roll 21 is arranged in top, and lower section is backing roll, and second is arranged above
Backing roll 18, lower section is brush roll 21, and two backing rolls 18 and two brush roll 21 are one group, complete the machine of a upper and lower surface
Tool formula surface residue is cleared up, and the bristle in described brush roll 21 is very thin, the head of the very thin bristle in brush roll 21 during process
The pit on strip steel 7 surface can be stretched into, the residual acid in pit and other impurity are brushed out, at the same time it can also be to strip steel 7 surface
It is processed by shot blasting, improves 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 existing
Technology, is no longer repeated in repeating in this its structure.
The above, only the present invention preferable possible embodiments, be not limited to the protection model of the present invention
Enclose.
Claims (10)
1. the anti-corrosion great surface quality of low consumption with heat for cold product processes, it is characterised in that specifically include following steps:
A. uncoiler uncoiling；
B. the oxide of belt steel surface is crushed, peels off by planisher；
C. multi-roll straightening machine oxide broken, the stripping further to belt steel surface；
D. the scrubbing roller in brushing device removes the oxide that belt steel surface comes off and loosens；
E. by through smooth, align and scrub process after strip steel carry out pickling, rinsing；
F. the strip steel through overpickling is entered into mechanical lapping equipment and carries out mechanical surface grinding reparation surface defect；
G. the strip steel ground through mechanical surface is entered into mechanical plate face residue removal device and carries out mechanical surface residual
Thing is cleared up；
H. the strip steel through above-mentioned processing is entered polishing machine and carry out the process of even surface roughness surface finishing；
I. the strip steel after processing batches through coiling machine becomes finished product.
A kind of anti-corrosion great surface quality of low consumption the most according to claim 1 is with heat for cold product processes, and its feature exists
In, this production method be flattening process, multiple roll straightening process, scrub technique, acid cleaning process, mechanical surface grinding technics, machine
Tool formula surface residue cleaning technology and the group technology of surface finishing technique, be configured with smooth after processing uncoiler
Machine, multi-roll straightening machine, brushing device three set possesses the process equipment of broken phosphorus, phosphorus removal functional, and treated strip steel enters acid tank
Carry out pickling processing, then the strip steel after pickling is entered into mechanical lapping equipment and carry out mechanical surface grinding, then by machine
Strip steel after tool formula surface grinding processes carries out mechanical surface residue cleaning, enters the strip steel through above-mentioned process the most again
The surface finishing of row even surface roughness processes.
A kind of anti-corrosion great surface quality of low consumption the most according to claim 2 for cold product processes, comprises three times with heat
Mechanical type breaks phosphorus, phosphorus removal functional, first planisher and crushes the oxide of belt steel surface, followed by planisher outlet
The multi-roll straightening machine oxide to having crushed carries out the most forward and reverse bending, crushes oxide further, finally utilizes and scrub
Device carries out oxide removing, three complete equipment coordinated to belt steel surface, removes the oxygen of Surfaces of Hot Rolled Strip as much as possible
Compound.
A kind of anti-corrosion great surface quality of low consumption the most according to claim 2 with heat for cold product processes, including smooth
Broken phosphorus, multiple roll aligning broken phosphorus, dephosphorization, rinse dephosphorization, pickling dephosphorization, mechanical surface are ground, the cleaning of mechanical surface residue,
And surface finishing technique, machinery dephosphorization efficiency is high, pickling time consumption short, sour is low, strip surface quality good, final products surface
Acid solution residual quantity is low, and corrosion resistance is good.
A kind of anti-corrosion great surface quality of low consumption the most according to claim 3 is with heat for cold product processes, and its feature exists
In, there is shortening acid reaction time function, described strip steel once breaks phosphorus through planisher, multi-roll straightening machine secondary breaks phosphorus, scrubs
Define permanent, large scale oxide crackle at belt steel surface after device dephosphorization, now enter back into pickling and carry out chemical dephosphorization,
Owing to belt steel surface possesses large scale oxide crackle, acid solution can rapid osmotic be reacted to FeO, by the pickling of straight carbon steel
Time is shortened to 10-12s by conventional 16-22s；Dual phase steel pickling time in high-strength steel is shortened to 20-by 35-45s
25s。
A kind of anti-corrosion great surface quality of low consumption the most according to claim 3 is with heat for cold product processes, and its feature exists
In, there is the function reducing acid consumption, described strip steel once breaks phosphorus through planisher, multi-roll straightening machine secondary breaks phosphorus, brushing device
After dephosphorization, remove belt steel surface partial oxide, decrease chemical reaction amount, reduce acid consumption.
A kind of anti-corrosion great surface quality of low consumption the most according to claim 4 is with heat for cold product processes, and its feature exists
In, the product surface quality produced is high, acid solution residual quantity is low, and corrosion resistance is good, and the carbon steel product through overpickling is entered machinery
Lapping device carries out mechanical surface grinding, to improve the surface quality of acid-washed product；After mechanical surface milled processed
Strip steel enters into mechanical plate face residue removal device and carries out mechanical surface residue cleaning, to remove at belt steel surface convex-concave
Residue, improves product corrosion resistance.
A kind of anti-corrosion great surface quality of low consumption the most according to claim 3 is with heat for cold product processes, and its feature exists
In, the breaking elongation comprising brokenly the phosphorus course of processing controls function, while belt steel surface oxide removed by planisher, by flat
Complete machine roll-force dynamic adjustment function controls the breaking elongation of planisher and multi-roll straightening machine, and then ensures the property of institute's rapidoprint
Energy.
A kind of anti-corrosion great surface quality of low consumption the most according to claim 3 is with heat for cold product processes, and its feature exists
In, have on the premise of not affecting strip property, remove belt steel surface oxide function, planisher, multi-roll straightening machine with
The combination of brushing device can form oxidation permanent, large-sized when strip steel elongation percentage is 0.8%-1.5% at belt steel surface
Thing crackle, is rapidly completed chemical surface treatment, has stopped common hot-rolled product and has produced luders band defect；Avoid high-strength steel, IF
Steel Properties deteriorates.
A kind of anti-corrosion great surface quality of low consumption the most according to claim 3 is with heat for cold product processes, and its feature exists
In, possessing the ability producing the excellent cold-rolled products of plate shape, strip steel enters multiple roll aligning after planisher tentatively improves plate shape
Machine, and the smoothing roll registration up and down of multi-roll straightening machine is adjusted according to belt steel thickness and material, improve cold rolling feeds further
Plate shape and thickness and precision, thus produce ejecting plate shape precision higher hot rolling acid-cleaning product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118459.1A CN103920741B (en) | 2014-03-27 | 2014-03-27 | A kind of anti-corrosion great surface quality of low consumption with heat for cold product processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118459.1A CN103920741B (en) | 2014-03-27 | 2014-03-27 | A kind of anti-corrosion great surface quality of low consumption with heat for cold product processes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103920741A CN103920741A (en) | 2014-07-16 |
| CN103920741B true CN103920741B (en) | 2016-08-17 |
Family
ID=51139272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410118459.1A Active CN103920741B (en) | 2014-03-27 | 2014-03-27 | A kind of anti-corrosion great surface quality of low consumption with heat for cold product processes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103920741B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900402A (en) * | 2019-11-25 | 2020-03-24 | 山东宏旺实业有限公司 | Leveling and polishing device for cold-rolled strip steel and using method thereof |
| CN114043366A (en) * | 2021-10-14 | 2022-02-15 | 孟祥平 | Ferrite stainless steel cold-rolled strip steel production device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62151590A (en) * | 1985-12-26 | 1987-07-06 | Nippon Steel Corp | Equipment for recovering sensible heat of metallic strip and pickling said strip |
| JPH1094817A (en) * | 1996-09-20 | 1998-04-14 | Nisshin Steel Co Ltd | Method for mechanically descaling hot rolled steel strip whose lubricity is improved |
| JP2000204489A (en) * | 1999-01-11 | 2000-07-25 | Nisshin Steel Co Ltd | Control of pickling 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 |
| CN102719831A (en) * | 2012-05-29 | 2012-10-10 | 中冶南方工程技术有限公司 | Method for removing scales on surface of hot-rolled stainless steel strip |
| 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 CN201410118459.1A patent/CN103920741B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62151590A (en) * | 1985-12-26 | 1987-07-06 | Nippon Steel Corp | Equipment for recovering sensible heat of metallic strip and pickling said strip |
| JPH1094817A (en) * | 1996-09-20 | 1998-04-14 | Nisshin Steel Co Ltd | Method for mechanically descaling hot rolled steel strip whose lubricity is improved |
| JP2000204489A (en) * | 1999-01-11 | 2000-07-25 | Nisshin Steel Co Ltd | Control of pickling 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 |
| 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 |
| CN102719831A (en) * | 2012-05-29 | 2012-10-10 | 中冶南方工程技术有限公司 | Method for removing scales on surface of hot-rolled stainless steel strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103920741A (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102744277B (en) | Method for producing cold-rolled stainless steel annealing and pickling brand steel | |
| CN206168943U (en) | Continuous production unit | |
| CN103920739B (en) | A kind of low acid consumes great surface quality with heat for cold product processes | |
| KR20100004806A (en) | Method and equipment for descaling hot-rolled steel strip | |
| CN105586600B (en) | A kind of cold rolled annealed acid cleaning process of two phase stainless steel | |
| CN103350110B (en) | Method for manufacturing austenitic stainless steel band with smooth and bright surface | |
| CN103920727B (en) | A kind of low consumption anti-corrosion great surface quality hot rolling acid-cleaning product processes | |
| CN108977874A (en) | A kind of two phase stainless steel annealing and pickling method | |
| CN103921059B (en) | A kind of low acid consumption cold-rolled steel strip products production method | |
| CN103920736B (en) | A kind of belt steel surface oxide sweep-out method of low acid consumption carbon steel | |
| CN103920741B (en) | A kind of anti-corrosion great surface quality of low consumption with heat for cold product processes | |
| CN103920710B (en) | A kind of anti-corrosion cold-rolled products production method of low consumption | |
| CN103920708B (en) | A kind of low consumption anti-corrosion great surface quality cold-rolled products production method | |
| 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 | |
| CN103418623A (en) | Cold-state metal plate strip surface treatment system and method | |
| CN104128382B (en) | A kind of low acid consumes anti-corrosion hot rolling acid-cleaning product processes | |
| CN108031717A (en) | A kind of pickling phosphorus removing method of Cold-strip Steel Surface | |
| KR101377914B1 (en) | Continous pickleing rolling system for cold-rolled steel sheet with excellent furface property and furface cleaning method of cold-rolled steel sheet using the same | |
| CN103920725B (en) | A kind of low plate face of great surface quality remains pickling process | |
| CN103921058B (en) | A kind of belt steel surface oxide sweep-out method of low acid consumption great surface quality | |
| CN103920738B (en) | A kind of low acid consumes with heat for cold belt product made from steel production method | |
| CN103920726B (en) | High-surface-quality carbon steel pickling technique | |
| CN103920740B (en) | A kind of low plate face remains with heat for cold product processes | |
| CN103920737B (en) | The belt steel surface oxide compound removing method of a kind of carbon steel |
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 |