CN103920740B - A kind of low plate face remains with heat for cold product processes - Google Patents
A kind of low plate face remains with heat for cold product processes Download PDFInfo
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- CN103920740B CN103920740B CN201410118364.XA CN201410118364A CN103920740B CN 103920740 B CN103920740 B CN 103920740B CN 201410118364 A CN201410118364 A CN 201410118364A CN 103920740 B CN103920740 B CN 103920740B
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Abstract
The one low plate face residual that the present invention relates to for cold product processes, specifically includes following steps: uncoiler uncoiling with heat；The oxide of belt steel surface is crushed, peels off by withdrawal straightening machine；Strip steel is carried out pickling, rinsing；Strip steel through overpickling and rinsing is entered into mechanical plate face residue removal device and carries out mechanical surface residue cleaning；Strip steel through above-mentioned process is entered polishing machine and carries out even surface roughness finishing process；Strip steel after processing batches through coiling machine becomes finished product.By the technical program, 1, the rinsing section at tradition pickling skin pass mill group sets up mechanical surface residue cleaning technology, reduces plate face Chloride residue, improves product corrosion resistance；2, it is not necessary to improve potcher temperature step by step and can realize reducing the process goal of the Chloride residue of belt steel surface, produce consumption low；3, advantageously reduce strip steel and enter the temperature of planisher, final products strip shape quality is excellent.
Description
Technical field
The invention belongs to common hot rolled flat material deep process technology field, particularly relate to a kind of low plate face residual with heat for cold product processes.
Background technology
Strip steel is after overpickling, surface has acid solution residual, and, the strip steel that surface quality is the poorest, surface acid solution residual quantity is the biggest, the chloride ion meeting heavy corrosion belt steel surface of these residuals, and making belt steel surface is yellow or yellow green mottling, and not as normal strip steel light after these belt steel rollings, the most easily there is corrosion again in finished product.
For reducing acid solution residual, use multistage rinse method to clean strip steel traditionally, and in rinse cycle, constantly promote rinse temperature, increase the kinetic energy of potcher Middle molecule, accelerate acid solution diffusion.The rinse temperature of general final rinse is 85 ° of about C, adds additional the energy expenditure of production process.Nonetheless, in terms of practical condition, in final rinse groove, acid strength is still at 100mg/l-150mg/l.
Summary of the invention
In view of this, present invention is primarily targeted at a kind of low plate face residual with heat for cold product processes, pass through the technical program, at configuration mechanical plate face, rinsing rear portion residue removal device, strip steel after rinsing is carried out mechanical surface residue cleaning, eliminate the aberration after pickling and surface defect, meanwhile, to remove the residue at belt steel surface convex-concave.
In order to achieve the above object, the technical scheme is that and be achieved in that: a kind of low plate face residual for cold product processes, specifically includes following steps with heat:
A. uncoiler uncoiling；
B. the oxide of belt steel surface is crushed, peels off by withdrawal straightening machine；
C. strip steel is carried out pickling, rinsing；
D. make to enter into mechanical plate face residue removal device through the strip steel of overpickling and preliminary rinsing and carry out mechanical surface residue cleaning, be re-fed into final rinse groove afterwards and finally rinse；
E. make to enter polishing machine through the strip steel of above-mentioned process and carry out even surface roughness finishing process；
F. the strip steel after processing batches through coiling machine becomes finished product.
In the present invention, this production method is the group technology of straightening technique, acid cleaning process, mechanical surface residue cleaning technology and the finishing process controlling roughness, and unit is made up of uncoiler, entry loop, withdrawal straightening machine, pickling, mechanical plate face residue removal device, outlet looping, polishing machine and coiling machine；After processing uncoiler, it is configured with withdrawal straightening machine carries out straightening scale breading, treated strip steel enters acid tank and carries out pickling processing, carries out mechanical surface residue cleaning by after pickling and being sent to mechanical plate face residue removal device through the strip steel of preliminary rinsing, finally makes above-mentioned strip steel enter into polishing machine again to carry out even surface roughnessization process skin processing the most again.
The present invention has that final products surface acid solution residual quantity is low, the feature that corrosion resistance is good, uses mechanical plate face residue removal device to remove the residue of belt steel surface before final rinse groove.
The present invention has production and consumes low function, mechanical plate face residue removal device is used to carry out mechanical surface residue cleaning before final rinse groove, eliminate potcher in conventional production methods to heat step by step, and require that final rinse temperature must not be less than 80 degree of energy expenditures caused.
It is few that the present invention has acid solution evaporation, the feature that environmental effect is little, and this production method uses room temperature rinsing, decreases the evaporation capacity of chloride ion in rinsing liquid.
The present invention has the advantages that product strip shape quality is excellent, and this production method uses room temperature rinsing, it is ensured that strip steel enters outlet polishing machine with the temperature of≤40 ° of C, it is to avoid smooth the caused plate weakened and emaciated body evil of high temperature and deformation.
The present invention has room temperature and batches, and extends the function in reel life-span, and this production method uses room temperature rinsing, and strip steel enters coiling machine with room temperature, it is to avoid the improper damage of sealing member in reel during high temperature coiling.
Provide the benefit that after using technique scheme: low plate face remains with heat for cold product processes, pass through the technical program, 1 sets up mechanical surface residue cleaning technology in the rinsing section of tradition pickling skin pass mill group, reduces plate face Chloride residue, improves product corrosion resistance；2, without improving the process goal that potcher temperature can realize the Chloride residue of minimizing belt steel surface step by step, produce consumption low；3 advantageously reduce strip steel enters the temperature of planisher, and final products strip shape quality is excellent.
Accompanying drawing explanation
Fig. 1 is the process equipment layout drawing of the present invention.
Mechanical plate face residue removal apparatus structure schematic diagram in Fig. 2 present invention.
In figure, 1 uncoiler, 2 entry loops, 3 withdrawal straightening machines, 4 pickling, 5 outlet loopings, 6 coiling machines, 7 strip steel, 18 backing rolls, 20 mechanical plate face residue removal devices, 21 brush roll, 22 polishing machines, 30 rinsing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment in the present invention is described in further detail.
The one low plate face residual that the present invention relates to for cold product processes, specifically includes following steps with heat:
A. uncoiler 1 uncoiling；
B. the oxide on strip steel 7 surface is crushed, peels off by withdrawal straightening machine；
C. strip steel is carried out pickling 4, rinsing 30；
D. make to enter into mechanical plate face residue removal device 20 through the strip steel 7 of overpickling 4 and preliminary rinsing 30 and carry out mechanical surface residue cleaning, be re-fed into final rinse groove afterwards and finally rinse；
E. the strip steel 7 through above-mentioned process is entered polishing machine 22 and carries out even surface roughness finishing process；
F. the strip steel 7 after processing batches through coiling machine 6 becomes finished product.
In the present invention, this production method is the group technology of straightening technique, acid cleaning process, mechanical surface residue cleaning technology and the finishing process controlling roughness, and pickling unit is made up of uncoiler 1, entry loop 2, withdrawal straightening machine 3, pickling 4, rinsing 30, mechanical plate face residue removal device 20, outlet looping 5, polishing machine 22 and coiling machine 6；After processing uncoiler 1, it is configured with withdrawal straightening machine 3 carries out straightening scale breading, treated strip steel 7 enters acid tank to carry out pickling 4 and processes, and carries out mechanical surface residue cleaning by after pickling 4 and being sent to mechanical plate face residue removal device 20 through the strip steel 7 of preliminary rinsing, finally makes above-mentioned strip steel 7 enter into polishing machine 22 again to carry out even surface roughnessization and process skin processing the most again.
The present invention has that final products surface acid solution residual quantity is low, the feature that corrosion resistance is good, uses mechanical plate face residue removal device 20 to remove the residue on strip steel 7 surface before final rinse 30 groove.
The present invention has production and consumes low function, mechanical plate face residue removal device 20 is used to carry out mechanical surface residue cleaning before final rinse 30 groove, eliminate and conventional production methods rinses 30 grooves heat step by step, and require that final rinse temperature must not be less than 80 degree of energy expenditures caused.
It is few that the present invention has acid solution evaporation, the feature that environmental effect is little, and this production method uses room temperature rinsing 30, decreases the evaporation capacity of chloride ion in rinsing 30 liquid.
The present invention has the advantages that product strip shape quality is excellent, and this production method uses room temperature rinsing 30, it is ensured that strip steel 7 enters outlet polishing machine 22 with the temperature of≤40 ° of C, it is to avoid smooth the caused plate weakened and emaciated body evil of high temperature and deformation.
Having room temperature in the present invention to batch, extend the function in reel life-span, this production method uses room temperature rinsing 30, and strip steel 7 enters coiling machine 6 with room temperature, it is to avoid the improper damage of sealing member in reel during high temperature coiling.
nullClassical acid washing machine group，Use high-temperature rinsing technique，The residual acid in plate face is reduced by increasing molecular kinetic energy，But effect is unsatisfactory in actual applications，The present invention uses mechanical surface residue cleaning technology，Plate face after pickling is remained and is reduced to less than the 20% of tradition acid cleaning process，Strip steel 7 is through two、Mechanical surface residue cleaning technology is entered after three grades of rinsings 21，During cleaning strip steel 7 upper surface，First brush roll 21 is arranged in top，Lower section is backing roll 18，Second is arranged above backing roll 18，Lower section is brush roll 21，Two backing rolls 18 and two brush roll 21 are one group，Complete the mechanical surface residue cleaning of a upper and lower surface，Bristle in described brush roll 21 is very thin，During process, the head of the very thin bristle in brush roll 21 can stretch into the pit on strip steel 7 surface，Residual acid in pit and other impurity are brushed out，Simultaneously，Strip steel 7 surface can also be processed by shot blasting，Improve the brightness of product surface.
The above, only the preferable possible embodiments of the present invention, is not limited to protection scope of the present invention.
Claims (7)
1. one kind low plate face residual 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 withdrawal straightening machine；
C. strip steel is carried out pickling, rinsing；
D. make to enter into mechanical plate face residue removal device through the strip steel of overpickling and preliminary rinsing and carry out mechanical surface residue cleaning, be re-fed into final rinse groove afterwards and finally rinse；
E. make to enter polishing machine through the strip steel of above-mentioned process and carry out even surface roughness finishing process；
F. the strip steel after processing batches through coiling machine becomes finished product.
One the most according to claim 1 low plate face remains with heat for cold product processes, it is characterized in that, this production method is the group technology of straightening technique, acid cleaning process, rinsing process, mechanical surface residue cleaning technology and the finishing process controlling roughness, and unit is made up of uncoiler, entry loop, withdrawal straightening machine, pickling, rinsing, mechanical plate face residue removal device, outlet looping, polishing machine and coiling machine；After processing uncoiler, it is configured with withdrawal straightening machine carries out straightening scale breading, treated strip steel enters acid tank and carries out pickling processing, carries out mechanical surface residue cleaning by after pickling and being sent to mechanical plate face residue removal device through the strip steel of preliminary rinsing, finally makes above-mentioned strip steel enter into polishing machine again to carry out even surface roughnessization process skin processing the most again.
One the most according to claim 2 low plate face remains with heat for cold product processes, it is characterized in that, there is final products surface acid solution residual quantity low, the feature that corrosion resistance is good, use mechanical type plate face residue removal device to remove the residue of belt steel surface before final rinse groove.
One the most according to claim 3 low plate face remains with heat for cold product processes, it is characterized in that, have to produce and consume low function, mechanical plate face residue removal device is used to carry out mechanical surface residue cleaning before final rinse groove, eliminate potcher in conventional production methods to heat step by step, and require that final rinse temperature must not be less than 80 degree of energy expenditures caused.
One the most according to claim 4 low plate face remains with heat for cold product processes, it is characterised in that have acid solution evaporation few, the feature that environmental effect is little, and this production method uses room temperature rinsing, decreases the evaporation capacity of chloride ion in rinsing liquid.
One the most according to claim 4 low plate face remains with heat for cold product processes, it is characterized in that, have the advantages that product strip shape quality is excellent, this production method uses room temperature rinsing, ensure that strip steel enters outlet polishing machine with the temperature of≤40 ° of C, it is to avoid smooth the caused plate weakened and emaciated body evil of high temperature and deformation.
One the most according to claim 4 low plate face remains with heat for cold product processes, it is characterized in that, there is room temperature batch, extend the function in reel life-span, this production method uses room temperature rinsing, strip steel enters coiling machine with room temperature, it is to avoid the improper damage of sealing member in reel during high temperature coiling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410118364.XA CN103920740B (en) | 2014-03-27 | 2014-03-27 | A kind of low plate face remains with heat for cold product processes |
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| CN201410118364.XA CN103920740B (en) | 2014-03-27 | 2014-03-27 | A kind of low plate face remains with heat for cold product processes |
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| CN103920740A CN103920740A (en) | 2014-07-16 |
| CN103920740B true CN103920740B (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955925A (en) * | 2016-10-18 | 2018-04-24 | 付蕊 | Galvanized steel blank pretreatment unit and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS56139681A (en) * | 1980-04-01 | 1981-10-31 | Sumitomo Metal Ind Ltd | Descaling method for hot rolled steel plate |
| WO1997013596A1 (en) * | 1995-10-11 | 1997-04-17 | Nisshin Steel Co., Ltd. | Method of descaling steel sheet in coil through high draft rolling |
| FR2839085B1 (en) * | 2002-04-26 | 2005-02-04 | Vai Clecim | METHOD AND INSTALLATION FOR PROCESSING A STRIP PRODUCT |
| CN103334109A (en) * | 2013-06-14 | 2013-10-02 | 山东全通精密薄板有限公司 | Acid pickling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955925A (en) * | 2016-10-18 | 2018-04-24 | 付蕊 | Galvanized steel blank pretreatment unit and method |
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