CN103920725B - A kind of low plate face of great surface quality remains pickling process - Google Patents
A kind of low plate face of great surface quality remains pickling process Download PDFInfo
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- CN103920725B CN103920725B CN201410118377.7A CN201410118377A CN103920725B CN 103920725 B CN103920725 B CN 103920725B CN 201410118377 A CN201410118377 A CN 201410118377A CN 103920725 B CN103920725 B CN 103920725B
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Abstract
The low plate face of a kind of great surface quality that the present invention relates to remains pickling process, specifically comprises the steps: uncoiler uncoiling; Withdrawal straightening machine carries out fragmentation, stripping to the oxide of belt steel surface; Strip pickling; Band steel after pickling enters into mechanical lapping equipment and carries out mechanical surface grinding; Band steel after grinding enters mechanical type surface residue cleaning plant clear board face and remains; Then be with steel to enter polishing machine and carry out the process of even surface roughness polishing; Coiling machine batches.By the technical program, 1 adopts mechanical lapping equipment to carry out mechanical surface grinding to belt steel surface repairs, and product surface quality is excellent; 2 adopt residue removal device clear board face, mechanical plate face acid solution to remain, improving product corrosion resistance; 3 realize normal temperature rinsing by mechanical type plate face device for cleaning residues, reduce to produce to consume; When 4 band steel enter planisher, temperature is low, is conducive to the strip shape quality ensureing final products.
Description
Technical field
The invention belongs to common hot rolled flat material deep process technology field, particularly relate to the low plate face of a kind of great surface quality and remain pickling process.
Background technology
In hot-strip production process, can react with the oxygen in air with steel top layer Fe atom, produce oxide iron sheet, existing technology, acid cleaning process is adopted to carry out surface treatment to hot-strip, remove oxide on surface, the hot-strip after pickling can directly use also can become cold-rolled products after cold rolling.
As shown in Figure 1, Figure 2 and Figure 3, in the ideal situation, the oxide on band steel 7 surface, the oxide from top layer to nexine is respectively Fe
2o
331, Fe
3o
432, FeO33, the complexity of above-mentioned three kinds of oxides and acid reaction is different, be positioned at undermost FeO33 the most easily and pickling react, in this state, acid solution is with oxide and be with the reaction time of steel 7 body substantially identical, is with steel 7 surface quality even after pickling; But, in actual production, part Fe
3o
432 can be deposited on band steel 7 surface, due to Fe
3o
432 is different with the reaction time of acid solution from FeO33, thus cause the uneven reaction between acid solution and band steel 7, cause band steel 7 surface quality after pickling can not meet the instructions for use of most product.
On the other hand, band steel is after overpickling, and surface has acid solution and remains, and the band steel that surface quality is poorer, surperficial acid solution residual quantity is larger.These residual chlorions meeting heavy corrosion belt steel surfaces, make belt steel surface be yellow or yellow green mottling, and are with steel 7 light not as normal after these band steel 7 rollings, and finished product also corrosion again easily occurs.
Remaining for reducing acid solution, adopting multistage rinse method cleaning tape steel traditionally, and constantly promote rinse temperature in rinse cycle, increase the kinetic energy of potcher Middle molecule, acceleration acid solution spreads, and the rinse temperature of general final rinse is 85 ° of about C, adds additional the energy ezpenditure of production process.Nonetheless, from practical condition, in final rinse groove, acid strength is still at 100mg/l-150mg/l.
Summary of the invention
In view of this, main purpose of the present invention is to provide the low plate face of a kind of great surface quality to remain pickling process, pass through the technical program, the present invention adopts mechanical lapping equipment to carry out mechanical surface grinding to belt steel surface and repairs, eliminate the aberration after pickling and blemish, promote surface quality, simultaneously, for the acid solution reducing product surface remains, mechanical plate face residue removal device is configured at rinsing rear portion, the cleaning of mechanical surface residue is carried out, to remove the residue at belt steel surface convex-concave place to band steel.
In order to achieve the above object, technical scheme of the present invention is achieved in that the low plate face of a kind of great surface quality remains pickling process, specifically comprises the steps:
A. uncoiler uncoiling;
B. withdrawal straightening machine carries out fragmentation, stripping to the oxide of belt steel surface;
C. band steel is carried out pickling, rinsing;
D. mechanical lapping equipment is entered into the band steel through overpickling and carry out mechanical surface grinding reparation blemish;
E. mechanical plate face residue removal device is entered into the band steel repaired through mechanical surface grinding and carry out the cleaning of mechanical surface residue;
F. polishing machine is entered to the band steel through above-mentioned process and carry out the process of even surface roughness polishing;
G. the band steel after process is batched through coiling machine and become finished product.
In the present invention, plate face remains pickling process, and this process is the group technology of the finishing process of straightening technique, acid cleaning process, rinsing process, mechanical surface grinding technics, mechanical surface residue cleaning technology and control roughness; Unit is made up of uncoiler, entry loop, withdrawal straightening machine, pickling, rinsing, mechanical lapping equipment, mechanical plate face residue removal device, outlet looping, polishing machine and coiling machine.After processing uncoiler, be configured with withdrawal straightening machine carry out straightening and break phosphorus, treated band steel enters acid tank and carries out pickling processing, enter into mechanical lapping equipment to the band steel after pickling again to carry out mechanical surface grinding, then enter into mechanical plate face residue removal device and carry out the cleaning of mechanical surface residue, finally again polishing machine is entered into above-mentioned band steel and carry out even surface roughness process skin processing.
In the technical scheme of invention, comprise straightening and break phosphorus, pickling dephosphorization, mechanical surface grinding, the cleaning of mechanical surface residue and surface finishing treatment process, make strip surface quality be better than the smooth product of common pickling.
In technical scheme of the present invention, to mechanical lapping equipment, mechanical surface milled processed is carried out to the carbon steel product introduction through overpickling, after one-level or two-stage or three grades of mechanical surface milled processed, the hot rolling acid-cleaning product of different surface roughness can be obtained.
The present invention has the good feature of the low corrosion resistance of final products surface acid solution residual quantity, before described mechanical plate face residue removal device is arranged on final rinse groove, remains thing to remove belt steel surface.
The present invention has the low function of production energy ezpenditure, before final rinse groove, adopt mechanical plate face residue removal device to remove belt steel surface remain thing, eliminate potcher in traditional handicraft to heat step by step, and require the energy ezpenditure that final rinse temperature must not cause lower than 80 degree.
The present invention has the little feature of the few ambient influnence of acid solution evaporation capacity, and this process adopts normal temperature rinsing, decreases the evaporation capacity of chlorion in rinsing liquid.
The present invention has the excellent feature of product strip shape quality, and this process adopts normal temperature rinsing, ensures that band steel enters polishing machine with the temperature of≤40 ° of C, avoids smooth the caused plate shape infringement of high temperature and distortion.
The present invention has normal temperature and batches and extend the function in reel life-span, and this process adopts normal temperature rinsing, and band steel enters coiling machine with room temperature, the improper damage of seal in reel when avoiding high temperature coiling.
Beneficial effect after employing technique scheme is: the low plate face of a kind of great surface quality remains pickling process, and by the technical program, 1 adopts mechanical lapping equipment to carry out mechanical surface grinding to belt steel surface repairs, and product surface quality is excellent; 2 adopt residue removal device clear board face, mechanical plate face acid solution to remain, improving product corrosion resistance; 3 realize normal temperature rinsing by mechanical type plate face device for cleaning residues, reduce to produce to consume; When 4 band steel enter planisher, temperature is low, is conducive to the strip shape quality ensureing final products.
Accompanying drawing explanation
Fig. 1 is the desirable oxide structure picture of belt steel surface.
Fig. 2 is the oxide structure picture of belt steel surface reality.
Fig. 3 is the strip surface quality picture after prior art pickling.
Fig. 4 is process equipment layout drawing of the present invention.
Mechanical lapping equipment structural representation in Fig. 5 the present invention.
Mechanical plate face residue removal apparatus structure schematic diagram in Fig. 6 the present invention.
In figure, 1 uncoiler, 2 entry loops, 3 withdrawal straightening machines, 4 pickling, 5 outlet loopings, 6 coiling machines, 7 band steel, 17 mechanical lapping equipments, 18 backing rolls, 19 mixing rolls, 20 mechanical plate face residue removal devices, 21 rinsings, 22 polishing machines, 30 rinsings, 31Fe
2o
3, 32Fe
3o
4, 33FeO.
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 4, Figure 5 and Figure 6, the present invention relates to. the low plate face of a kind of great surface quality remains pickling process, specifically comprises the steps:
A. uncoiler 1 uncoiling;
B. the oxide 8 of withdrawal straightening machine 3 to band steel 7 surface carries out fragmentation, stripping;
C. band steel 7 is carried out pickling 4, rinsing 30;
D. mechanical lapping equipment 17 is entered into the band steel through overpickling 4 and carry out mechanical surface grinding reparation blemish;
E. mechanical plate face residue removal device 20 is entered into the band steel through overpickling 4 and rinsing 30 and carry out the cleaning of mechanical surface residue;
F. polishing machine 22 is entered to the band steel 7 through above-mentioned process and carry out the process of even surface roughness polishing;
G. the band steel 7 after process is batched through coiling machine 6 and become finished product.
This process is straightening technique, acid cleaning process, rinsing process, the group technology of the finishing process of mechanical surface renovation technique and control roughness, pickling unit is by uncoiler 1, entry loop 2, withdrawal straightening machine 3, pickling 4, rinsing 30, mechanical lapping equipment 17, machinery plate face residue removal device 20, outlet looping 5, polishing machine 22 and coiling machine 6 are formed, after processing uncoiler 1, be configured with withdrawal straightening machine 3 carry out straightening and break phosphorus, treated band steel 7 enters acid tank to carry out pickling 4 and processes, again mechanical lapping equipment 17 is entered into the band steel after pickling 4 and carry out mechanical surface grinding, then enter into mechanical plate face residue removal device 20 and carry out the cleaning of mechanical surface residue, finally entering into polishing machine 22 to above-mentioned band steel 7 again carries out even surface roughness process skin processing.
In technical scheme of the present invention, comprise straightening and break phosphorus, pickling dephosphorization, mechanical surface grinding, the cleaning of mechanical surface residue and surface finishing treatment process, make band steel 7 surface quality be better than the smooth product of common pickling.
In technical scheme of the present invention, to mechanical lapping equipment 17, mechanical surface milled processed is carried out to the carbon steel product introduction through overpickling 4, after one-level or two-stage or three grades of mechanical surface milled processed, hot rolling acid-cleaning 4 product of different surface roughness can be obtained.
The present invention has the good feature of the low corrosion resistance of final products surface acid solution residual quantity, and described mechanical plate face residue removal device 20 is arranged on before final rinse 30 groove, removes the residue of belt steel surface.
The present invention has the low function of production energy ezpenditure, before final rinse 30 groove, adopt mechanical plate face residue removal device 20 to remove the residue on band steel 7 surface, eliminate rinsing 30 groove in traditional handicraft and heat step by step, and require the energy ezpenditure that final rinse 30 temperature must not cause lower than 80 degree.
The present invention has the little feature of the few ambient influnence of acid solution evaporation capacity, and this process adopts normal temperature rinsing 30, decreases the evaporation capacity of chlorion in rinsing 30 liquid.
The present invention has the excellent feature of product strip shape quality, and this process adopts normal temperature rinsing 30, ensures that band steel 7 enters polishing machine 22 with the temperature of≤40 ° of C, avoids smooth the caused plate shape infringement of high temperature and distortion.
The present invention has normal temperature and batches and extend the function in reel life-span, and this process adopts normal temperature rinsing 30, and band steel 7 enters coiling machine 6 with room temperature, the improper damage of seal in reel when avoiding high temperature coiling.
The present invention at work, band steel 7 out enters into one-level rinsing 30 groove afterwards from pickling 4 groove, one-level rinsing 30 groove adopts high-pressure wash method to remove the acid solution on band steel 7 surface, band steel 7 out enters into mechanical lapping equipment 17 afterwards from one-level rinsing 30 groove, mechanical lapping equipment 17 adopts the mixing roll 19 with the abrasive material of AlO to carry out surface treatment to band steel 7, and on mixing roll 19, the granularity of subsidiary abrasive material determines the roughness on band steel 7 surface.
In the present invention, the mechanical lapping equipment 17 of mechanical surface mill grinding process is when cleaning tape steel 7 upper surface, first mixing roll 19 is configured in top, below is backing roll 18, second top is backing roll 18, below is mixing roll 19, two backing rolls 18 and two mixing rolls 19 are one group, can according to the requirement of finished strip 7 surface quality, configure mixing roll 19 and the backing roll 18 of more than one group, described mixing roll 19 is being with the surperficial High Rotation Speed of steel 7 with the linear velocity of 1000m/min-3000m/min, mixing roll 19 rub and abrasive lapping acting in conjunction under, remove tiny flaw and the aberration on band steel 7 surface.
Tradition pickling unit, adopts high-temperature rinsing technique, reduce the residual acid in plate face, but effect is unsatisfactory in actual applications by increasing molecular kinetic energy.
The mechanical plate face residue removal device 20 of mechanical surface residue cleaning technology in the present invention, plate face after pickling 4 is remained and is reduced to less than 20% of traditional pickling 4 technique, band steel 7 is through two, enter in the mechanical plate face residue removal device 20 of mechanical surface residue cleaning technology after three grades of rinsings 30, during cleaning tape steel 7 upper surface, first brush roll 21 is configured in top, below is backing roll, second top is backing roll 18, below 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, the head of very thin bristle during process 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, polishing can also be carried out to band steel 7 surface, improve the brightness of product surface.
The above, be only better possible embodiments of the present invention, and be not used to limit protection scope of the present invention.
Claims (9)
1. the low plate face of great surface quality remains a pickling process, it is characterized in that, specifically comprises the steps:
A. uncoiler uncoiling;
B. withdrawal straightening machine carries out fragmentation, stripping to the oxide of belt steel surface;
C. band steel is carried out pickling, rinsing;
D. mechanical lapping equipment is entered into the band steel through overpickling and carry out mechanical surface milled processed, repair blemish;
E. mechanical plate face residue removal device is entered into the band steel repaired through mechanical surface grinding and carry out the cleaning of mechanical surface residue;
F. polishing machine is entered to the band steel through above-mentioned process and carry out the process of even surface roughness polishing;
G. the band steel after process is batched through coiling machine and become finished product.
2. the low plate face of a kind of great surface quality according to claim 1 remains pickling process, it is characterized in that, this process is the group technology of straightening technique, acid cleaning process, rinsing process, mechanical surface grinding renovation technique, mechanical surface residue cleaning technology and control roughness finishing process; Unit is made up of uncoiler, entry loop, withdrawal straightening machine, pickling, rinsing, mechanical lapping equipment, mechanical plate face residue removal device, outlet looping, polishing machine and coiling machine; After processing uncoiler, be configured with withdrawal straightening machine carry out straightening and break phosphorus, treated band steel enters acid tank and carries out pickling processing, enter into mechanical lapping equipment to the band steel after pickling again to carry out mechanical surface grinding, then enter into mechanical plate face residue removal device and carry out the cleaning of mechanical surface residue, finally again polishing machine is entered into above-mentioned band steel and carry out even surface roughness process skin processing.
3. the low plate face of a kind of great surface quality according to claim 2 remains pickling process, it is characterized in that, comprise straightening and break phosphorus, pickling dephosphorization, mechanical surface grinding, the cleaning of mechanical surface residue and surface finishing treatment process, make strip surface quality and corrosion resistance all be better than the smooth product of common pickling.
4. the low plate face of a kind of great surface quality according to claim 3 remains pickling process, it is characterized in that, to mechanical lapping equipment, mechanical surface milled processed is carried out to the carbon steel product introduction through overpickling, after one-level or two-stage or three grades of mechanical surface milled processed, the hot rolling acid-cleaning product of different surface roughness can be obtained.
5. the low plate face of a kind of great surface quality according to claim 2 remains pickling process, it is characterized in that there is final products surface acid solution residual quantity low, the feature that corrosion resistance is good, before described mechanical plate face residue removal device is arranged on final rinse groove, remove the residue of belt steel surface.
6. the low plate face of a kind of great surface quality according to claim 5 remains pickling process, it is characterized in that, have and produce the low function of energy ezpenditure, before final rinse groove, adopt mechanical plate face residue removal device to remove belt steel surface remain thing, eliminate potcher in traditional handicraft to heat step by step, and require the energy ezpenditure that final rinse temperature must not cause lower than 80 degree.
7. the low plate face of a kind of great surface quality according to claim 6 remains pickling process, it is characterized in that, have the advantages that the few ambient influnence of acid solution evaporation capacity is little, this process adopts normal temperature rinsing, decreases the evaporation capacity of chlorion in rinsing liquid.
8. the low plate face of a kind of great surface quality according to claim 6 remains pickling process, it is characterized in that, have the advantages that product strip shape quality is excellent, this process adopts normal temperature rinsing, ensure that band steel enters polishing machine with the temperature of≤40 ° of C, avoid smooth the caused plate shape infringement of high temperature and distortion.
9. the low plate face of a kind of great surface quality according to claim 6 remains pickling process, it is characterized in that, there is normal temperature and batch the function extending the reel life-span, this process adopts normal temperature rinsing, band steel enters coiling machine with room temperature, the improper damage of seal in reel when avoiding high temperature coiling.
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|---|---|---|---|
| CN201410118377.7A CN103920725B (en) | 2014-03-27 | 2014-03-27 | A kind of low plate face of great surface quality remains pickling process |
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| CN201410118377.7A CN103920725B (en) | 2014-03-27 | 2014-03-27 | A kind of low plate face of great surface quality remains pickling process |
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| CN103920725B true CN103920725B (en) | 2016-03-30 |
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| CN111331435A (en) * | 2020-03-27 | 2020-06-26 | 中冶赛迪工程技术股份有限公司 | Intelligent surface grinding process and production line for alloy medium plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01273607A (en) * | 1988-04-25 | 1989-11-01 | Nisshin Steel Co Ltd | Method and device for processing hot rolled alloy steel strip |
| JP2000210709A (en) * | 1999-01-26 | 2000-08-02 | Nisshin Steel Co Ltd | Method for descaling hot rolled steel strip |
| 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 |
| CN102744277A (en) * | 2012-07-23 | 2012-10-24 | 中冶南方工程技术有限公司 | Method for producing cold-rolled stainless steel annealing and pickling brand steel |
| CN103419113A (en) * | 2012-05-25 | 2013-12-04 | 宝山钢铁股份有限公司 | Novel metal plate strip surface cleaning method and device |
-
2014
- 2014-03-27 CN CN201410118377.7A patent/CN103920725B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01273607A (en) * | 1988-04-25 | 1989-11-01 | Nisshin Steel Co Ltd | Method and device for processing hot rolled alloy steel strip |
| JP2000210709A (en) * | 1999-01-26 | 2000-08-02 | Nisshin Steel Co Ltd | Method for descaling hot rolled steel strip |
| CN103419113A (en) * | 2012-05-25 | 2013-12-04 | 宝山钢铁股份有限公司 | Novel metal plate strip surface cleaning method and device |
| 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 |
| CN102744277A (en) * | 2012-07-23 | 2012-10-24 | 中冶南方工程技术有限公司 | Method for producing cold-rolled stainless steel annealing and pickling brand steel |
Non-Patent Citations (1)
| Title |
|---|
| 国产化带平整机的连续酸洗机组设备组成及特点;马丽坤等;《冶金设备》;20121231(第195期);第120-122页 * |
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