CN115318869A - Strip processing production line containing secondary rolling process and strip processing method - Google Patents
Strip processing production line containing secondary rolling process and strip processing method Download PDFInfo
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- CN115318869A CN115318869A CN202210822268.8A CN202210822268A CN115318869A CN 115318869 A CN115318869 A CN 115318869A CN 202210822268 A CN202210822268 A CN 202210822268A CN 115318869 A CN115318869 A CN 115318869A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 60
- 238000012545 processing Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title abstract description 27
- 238000003672 processing method Methods 0.000 title abstract description 8
- 238000005554 pickling Methods 0.000 claims abstract description 64
- 238000000137 annealing Methods 0.000 claims abstract description 59
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010936 titanium Substances 0.000 claims abstract description 20
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 20
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 19
- 239000010935 stainless steel Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000011282 treatment Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 43
- 239000002253 acid Substances 0.000 claims description 25
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000005406 washing Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 13
- 229910052786 argon Inorganic materials 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000010924 continuous production Methods 0.000 abstract description 7
- 238000012546 transfer Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 87
- 238000003825 pressing Methods 0.000 description 53
- 239000000047 product Substances 0.000 description 44
- 230000007246 mechanism Effects 0.000 description 23
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 16
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- 238000012423 maintenance Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
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- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- 238000005422 blasting Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
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- 238000003698 laser cutting Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
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- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000000839 emulsion Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to a strip processing production line containing a secondary rolling process, which comprises an uncoiling working section, a first annealing and pickling working section and a first product collecting working section which are sequentially connected and arranged along the running direction of a strip, and further comprises a rolling mill, a second annealing and pickling working section, a plate type finishing working section and a second product collecting working section which are sequentially connected and arranged along the running direction of the strip, wherein the first product collecting working section is connected with the rolling mill through a strip transfer structure. The invention also relates to a strip processing method based on the strip processing production line. The continuous production line has the advantages that the first annealing and pickling section, the first product collecting section, the rolling mill, the second annealing and pickling section, the plate type finishing section, the second product collecting section and the like are jointly arranged to form a continuous production unit, so that the continuous treatment of strips such as hot rolled stainless steel coils, cold hardened stainless steel coils, hot rolled titanium coils, cold hardened titanium coils and the like can be met, the adjustment and transportation of steel coils among working procedures are omitted, the yield is improved, and the factory construction land and the engineering investment are greatly saved.
Description
Technical Field
The invention relates to a strip processing production line with a secondary rolling process and a strip processing method based on the strip processing production line.
Background
Stainless steel pickling, rolling, annealing, surface finishing and the like are mature production processes, and titanium coiled material production is gradually increased in recent years. In the current stage of demand, the demand and yield of stainless steel is high, and the demand and yield of titanium is low, but the demand and yield tend to increase year by year. The technology for producing the stainless steel strip is mature, the technology for producing the titanium strip is relatively laggard, the main reason is that the yield is low, most factories produce the titanium strip in a plate production mode, but with the increase of the demand, a continuous unit which saves the cost and improves the efficiency is a trend for producing the titanium strip in the future.
Disclosure of Invention
The invention relates to a strip processing line comprising a secondary rolling process and a strip processing method based on the strip processing line, which can solve at least part of defects of the prior art.
The invention relates to a strip processing production line containing a secondary rolling process, which comprises an uncoiling working section, a first annealing and pickling working section and a first product collecting working section which are sequentially connected and arranged along the running direction of a strip, and further comprises a rolling mill, a second annealing and pickling working section, a plate type finishing working section and a second product collecting working section which are sequentially connected and arranged along the running direction of the strip, wherein the first product collecting working section is connected with the rolling mill through a strip transferring structure.
As one embodiment, the second annealing and pickling section includes an argon-protected rapid heating annealing furnace and a light pickling unit, and the argon-protected rapid heating annealing furnace adopts a resistance furnace or an induction heating furnace.
As an embodiment, the light acid wash unit comprises a neutral salt electrolysis section and a mixed acid wash section.
In one embodiment, the rolling mill is an in-line 18-roll rolling mill or a 6-roll tandem rolling mill with a small roll diameter.
As an embodiment, the first product collecting station comprises a first coiler and a first sheet collecting device, and the first coiler and the first sheet collecting device are connected through a transition guide plate; and/or the second product collecting section comprises a second coiling machine and a second plate collecting device, and the second coiling machine is connected with the second plate collecting device through a transition guide plate.
As one embodiment, the uncoiling station includes a double uncoiler and a welder, both uncoilers being engaged with the welder.
The invention also relates to a strip processing method which is based on the strip processing production line containing the secondary rolling process, wherein,
when hot rolled strips are treated, strip raw materials are sequentially treated by an uncoiling working section and a first annealing and pickling working section, and obtained products are collected by a first product collecting working section;
when the cold-rolled strip or the strip needs to be thinned during processing, the strip raw material is sequentially processed by an uncoiling working section, a first annealing and pickling working section, a rolling mill, a second annealing and pickling working section and a plate type finishing working section, and the obtained product is collected by the second product collecting working section.
In one embodiment, the strip is stainless steel or titanium.
As an embodiment, the products collected by the first product collection station and the second product collection station are coils or plates.
As one embodiment, the second annealing and pickling section comprises an argon protection rapid heating annealing furnace and a light pickling unit, wherein the argon protection rapid heating annealing furnace adopts a resistance furnace or an induction heating furnace; the light acid washing unit comprises a neutral salt electrolysis section and a mixed acid washing section, wherein the mixed acid washing section adopts HF and HNO 3 The mixed pickling solution of (1).
The invention has at least the following beneficial effects:
the continuous production line has the advantages that the first annealing and pickling section, the first product collecting section, the rolling mill, the second annealing and pickling section, the plate type finishing section, the second product collecting section and the like are jointly arranged to form a continuous production unit, so that the continuous treatment of strips such as hot-rolled stainless steel coils, cold-hardened stainless steel coils, hot-rolled titanium coils, cold-hardened titanium coils and the like can be met, coiled materials or plate products of stainless steel and titanium materials can be directly produced, the adjustment and transportation of steel coils among working procedures can be omitted, the yield can be improved, and the factory construction land and engineering investment can be greatly saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of the composition of a strip processing line provided by an embodiment of the present invention;
fig. 2 is a structural diagram of a strip steel cutting station provided in the third embodiment of the present invention;
fig. 3 is a schematic structural diagram of a strip steel conveying device provided in the third embodiment of the present invention;
fig. 4 is a plan view of a strip steel conveying apparatus according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a strip steel pressing mechanism provided in the third embodiment of the present invention;
fig. 6 is a schematic view of the arrangement of the guide plate on the pressing frame according to the third embodiment of the present invention;
fig. 7 is a side view of fig. 6.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, an embodiment of the present invention provides a strip processing production line including a secondary rolling process, including an uncoiling section, a first annealing and pickling section, and a first product collecting section, which are sequentially arranged in a connection manner along a strip running direction, and further including a rolling mill 14, a second annealing and pickling section, a plate type finishing section, and a second product collecting section, which are sequentially arranged in a connection manner along the strip running direction, wherein the first product collecting section is connected with the rolling mill 14 through a strip transferring structure 13.
In one embodiment, as shown in fig. 1, the unwinding station adopts a double-unwinding mode, which can effectively save the inlet unwinding time, and specifically, the unwinding station includes a double-unwinding machine and a welding machine 3, the double-unwinding machine also includes a first unwinding machine 1 and a second unwinding machine 2, and both of the two unwinding machines are engaged with the welding machine 3; the welding machine 3 is used for welding the tail of the previous coil of strip and the head of the next coil of strip to realize continuous production, and the welding machine 3 can adopt a laser welding machine 3, a laser composite welding machine 3 and other welding equipment which can directly roll welding seams. Preferably, the two uncoilers have a strip coil uncoiling capacity of 1 to 12mm of strip thickness.
The first annealing and pickling section comprises a front annealing furnace 5 and a front pickling unit 8, wherein the front annealing furnace 5 is preferably a resistance furnace or an induction heating furnace, so that the rapid heating of the strip can be realized, and the annealing effect is ensured.
In one embodiment, the pre-pickling unit 8 adopts a pickling process of pickling with sulfuric acid and pickling with mixed acid; the sulfuric acid pickling section can adopt 1-4 sections of sulfuric acid pickling tanks, the number of the sulfuric acid pickling tanks can be increased or decreased according to the requirements of the process speed and the like of the strip, each group of sulfuric acid pickling tanks is preferably provided with a sulfuric acid pickling solution circulating mechanism independently, and further, the concentration of the sulfuric acid pickling solution of each sulfuric acid pickling tank is decreased sequentially along the running direction of the strip; the mixed acid pickling preferably adopts HF and HNO 3 The mixed acid washing solution can adopt 2-4 sections of mixed acid washing tanks, each group of mixed acid washing tank is preferably provided with a mixed acid washing solution circulating mechanism independently, and furthermore, the concentration of the mixed acid washing solution of each mixed acid washing tank is gradually reduced along the running direction of the strip.
Further, as shown in fig. 1, a first loop 4 is arranged between the pre-annealing furnace 5 and the uncoiling working section, so that the production pace between the uncoiling working section and the first annealing and pickling working section can be coordinated, the first loop 4 is preferably in a full loop state during normal production, and the first loop 4 can be used for releasing to ensure that the production is smooth under the working conditions of welding operation of the welding machine 3 and the like.
Further, as shown in fig. 1, a second loop 9 is provided between the front pickling unit 8 and the first product collecting section, so that the production pace between the first annealing pickling section and the downstream section can be coordinated, and specifically, by the buffer function of the second loop 9, the normal operation of the first annealing pickling section when the roll of the rolling mill 14 is changed can be ensured, and the normal operation of the first annealing pickling section when the first product collecting section is collecting products can be ensured.
Further, as shown in fig. 1, a surface treatment mechanism is also disposed between the front annealing furnace 5 and the front pickling unit 8, and preferably, the surface treatment mechanism includes a shot blasting machine 6 and a surface re-brushing device 7, wherein: the shot blasting machine 6 can be provided with different numbers of throwing chambers according to different unit speeds, the higher the speed is, the more the throwing chambers are, and in the embodiment, 1-3 throwing chamber shot blasting machines 6 are adopted; the surface re-brushing device 7 adopts hard bristles to brush the surface of the strip with the oxide scale, so that the pickling efficiency can be improved while part of the oxide scale is removed.
In one embodiment, the rolling mill 14 adopts an online 18-roll rolling mill 14 or a 6-roll continuous rolling mill 14 with a small roll diameter, preferably adopts a multi-frame structure, and the number of frames can be set to be not less than 3 according to the requirements of raw materials and product specifications; the total rolling reduction of the rolling mill 14 is preferably controlled to 20% to 85%. Further preferably, as shown in fig. 1, a cleaning section 15 is arranged at the outlet side of the rolling mill 14, which can remove the emulsion or rolling oil remaining on the surface of the strip during the rolling process and can improve the surface quality of the final product, and the cleaning section 15 can be cleaned with alkali or rinsed with hot water under high pressure.
In one embodiment, the second annealing and pickling section comprises an argon protection rapid heating annealing furnace 17 and a light pickling unit 18, the argon protection rapid annealing furnace adopts a resistance furnace or an induction heating furnace, and argon protection is introduced, so that rapid heating of the strip can be realized, and the annealing effect and the production efficiency are ensured; wherein the furnace temperature of the argon protection rapid annealing furnace is preferably controlled to be 1100-1250 ℃.
The surface of the strip treated by the argon protection rapid heating annealing furnace 17 has a thin oxide film, and the light acid washing unit 18 can remove the oxide film, so that the surface quality of the product is improved. Preferably, the light acid wash unit 18 includes neutral salt electrolysisThe section and the mixed acid pickling section can be suitable for the treatment of stainless steel and titanium materials, and the surface state of the strip material is controlled by controlling parameters such as current, acid concentration, temperature and the like. Preferably, the mixed acid pickling section adopts HF and HNO 3 Further, HF is less than or equal to 20g/l, HNO 3 ≦100g/l。
Further, as shown in fig. 1, a third loop 16 is arranged between the rolling mill 14 and the argon-protected rapid heating annealing furnace 17, so that the production pace between the rolling mill 14 and the second annealing and pickling section can be coordinated, and the second annealing and pickling section can be ensured to normally operate when the rolling mill 14 changes rolls.
Further, as shown in fig. 1, a fourth loop 19 is provided between light acid wash unit 18 and the plate finishing section, which can coordinate the production pace between the second annealing acid wash section and the downstream section.
In one embodiment, the plate type finishing section includes a leveler 20 and a tension leveler 21, which can perform plate type and surface treatments on the strip to improve the quality of the strip product, such as the stainless steel strip surface meeting the 2B/2D surface delivery requirements, the titanium strip surface meeting the customer's required roughness requirements, etc.
The strip processing production line provided by the embodiment can be used for processing stainless steel strip steel and can also be used for processing titanium strip; a coil can be obtained, but also a plate, respectively:
as shown in fig. 1, the first product collecting station includes a first coiler 10 and a first sheet material collecting device 12, and the first coiler 10 is engaged with the first sheet material collecting device 12 through a first transition guide 11; and/or the second product collecting section comprises a second coiling machine 22 and a second plate collecting device 24, and the second coiling machine 22 is connected with the second plate collecting device 24 through a second transition guide plate 23. Wherein, when the target product is a plate material, it is necessary to cut the strip material into plates, therefore, the first product collecting section further comprises a strip material cutting device, which can be arranged at the inlet side of the first product collecting section, for example, at the incoming side of the first coiling machine 10, or between the first coiling machine 10 and the first plate material collecting device 12; the second product collecting section may also be provided with a strip cutting device, and the specific arrangement structure is not described herein. The first sheet material collecting device 12 and the second sheet material collecting device 24 may employ a sheet material stacker or the like.
In addition, the strip transfer structure 13 between the first product collection section and the rolling mill 14 can also adopt a transition guide plate.
Based on the strip processing production line, the processing of stainless steel or titanium materials can be met, and the raw material coil can be hot-rolled black coil stainless steel, cold-hardened stainless steel, hot-rolled titanium coil and the like; the strip thickness specification may be 1mm to 12mm. The strip processing line has two main production processes:
after strip materials are sequentially processed in an uncoiling working section and a first annealing and pickling working section, the obtained products are collected in a first product collecting working section;
after strip materials are sequentially processed by an uncoiling working section, a first annealing and pickling working section, a rolling mill 14, a second annealing and pickling working section and a plate type finishing working section, the obtained products are collected by the second product collecting working section.
The strip processing production line provided by the embodiment forms a continuous production unit by jointly arranging the first annealing and pickling section, the first product collecting section, the rolling mill 14, the second annealing and pickling section, the plate type finishing section, the second product collecting section and the like, can meet the continuous processing of strips such as hot-rolled stainless steel coils, cold-hardened stainless steel coils, hot-rolled titanium coils, cold-hardened titanium coils and the like, directly produces coiled materials or plate products of stainless steel and titanium materials, saves the adjustment and transportation of steel coils among processes, improves the yield, and greatly saves the factory construction land and the engineering investment.
Example two
Referring to fig. 1, an embodiment of the present invention provides a strip processing method that is performed on the strip processing line including a secondary rolling pass according to the first embodiment, wherein,
when hot rolled strips are treated, strip raw materials are sequentially treated by an uncoiling working section and a first annealing and pickling working section, and obtained products are collected by a first product collecting working section;
when the cold-rolled strip or the strip needs to be thinned during processing, the strip raw material is sequentially processed by an uncoiling working section, a first annealing and pickling working section, a rolling mill 14, a second annealing and pickling working section and a plate type finishing working section, and the obtained product is collected by the second product collecting working section.
The related contents of the strip processing method are described in the first embodiment, and will not be described herein.
EXAMPLE III
The embodiment of the invention provides a strip cutting method on a strip continuous production line, which can be used in the first embodiment or the second embodiment and is used for cutting strips into plate products.
The strip cutting method comprises the following steps:
a cutting head 301 is arranged above the strip running channel;
designing a cutting head running path, so that the cutting head 301 keeps following the strip material in the length direction of the strip material and moves transversely and cuts relative to the strip material in the width direction of the strip material;
when the strip material runs to the set position, the cutting head 301 moves according to the designed running path of the cutting head to cut the strip material.
Wherein, a thermal cutting mode or a water cutting mode can be adopted, the thermal cutting mode preferably adopts a laser cutting mode, and correspondingly, the cutting head 301 is a laser cutting head; for the water cutting mode, the cutting head 301 is correspondingly a water cutting head/water jet.
Obviously, the cutting head 301 described above needs to be movable, and accordingly, the cutting head 301 is provided with a head driving mechanism having a first driving stroke for driving the cutting head 301 to move in the length direction of the running path of the web and a second driving stroke for driving the cutting head 301 to move in the width direction of the running path of the web. In one embodiment, as shown in fig. 2, a gantry cutting machine is adopted, which specifically includes:
the machine tool main machine part: including portal frame 303 and movable seat, portal frame 303 can slide along strip operation passageway length direction, realizes that cutting head 301 is in the motion of X to, and the movable seat can transversely move on portal frame 303, realizes that cutting head 301 is in the motion of Y to, and further still can set up the movable seat and can go up and down for portal frame 303, realizes that cutting head 301 is in the motion of Z to, can the auxiliary focusing, improves the focusing efficiency and the focus precision of cutting head 301. The driving of the portal frame 303 and the driving of the movable seat are preferably servo motors, and can be accurately and precisely driven according to a control program; the laser 302 is installed on the movable seat, and laser emitted by the laser 302 is emitted to the surface of the strip by the cutting head 301, so that the strip cutting operation is realized;
the numerical control system comprises: the machine tool main machine is controlled to realize the X-direction, Y-direction and Z-direction movement of the cutting head 301, and the output power of the laser 302 is also controlled.
Furthermore, the cutting machine also comprises an air draft dust removal mechanism, and the air draft dust removal mechanism is used for extracting smoke dust and dust generated during processing and performing dust removal treatment, so that the exhaust emission meets the environmental protection requirement.
Furthermore, a waste collecting unit is arranged below the strip conveying channel, and the waste collecting unit can be provided with a slag discharging device, so that collected waste can be discharged in time.
As shown in fig. 4, the cutting head 301 exhibits both a movement in the direction of the length of the strip and a movement in the direction of the width of the strip, presenting a path of travel of the cutting head which is inclined at an angle with respect to the direction of the length of the strip.
The design consideration of the cutting head running path mainly includes the tape specification, the tape running speed, the cutting time and the like, the starting running position of the cutting head 301 can be determined according to the tape specification, the tape running speed mainly determines the X-direction moving speed of the cutting head 301, and the cutting time requirement can be combined with the tape specification to determine the Y-direction moving speed of the cutting head 301. The cutting head travel paths may differ for different operating conditions, but all cutting head travel paths may be within the two boundary travel paths of the cutting head 301 (as shown in fig. 4).
It will be appreciated that "the cutting head 301 is maintained to follow the strip in the direction of the length of the strip", i.e. it is necessary to maintain the X-direction movement speed of the cutting head 301 to be the same as the running speed of the strip. The running speed of the strip is controlled by the strip conveying device 100, so that the cutting head driving mechanism and the strip conveying device 100 can be controlled in an interlocking way to ensure the follow-up requirement and avoid causing strip waste.
Based on the method, the embodiment can realize the on-line continuous cutting operation of the strip on the strip processing production line, does not need to stop shearing or flying shearing, ensures the reliability and the smoothness of the strip production, and is particularly suitable for the on-line continuous cutting operation of the high-strength steel plate.
The method is further optimized, as shown in fig. 4, the strip material running channel is divided into a cutting area 110 and a non-cutting area 120 according to the running range of the cutting head defined by the running paths of the cutting head under different working conditions, and the strip material conveying device 100 in the cutting area 110 is subjected to protection design. Based on the design, the strip conveying device 100 can be well protected, the strip conveying device 100 of the cutting area 110 and the non-cutting area 120 is designed in a matching mode, and equipment cost and maintenance cost can be effectively reduced.
In one embodiment, the transfer surface of the strip transport apparatus 100 adapted to contact the strip material in the cutting area 110 is made of a material resistant to laser irradiation, such as copper plating or other laser irradiation resistant material layer formed on the transfer surface. The structure can better protect the strip conveying device 100, prevent laser from penetrating the strip to ablate the strip conveying device 100 and prevent the strip conveying device 100 from generating surface defects to influence the surface quality of the strip.
In one embodiment, as shown in fig. 3 and 4, in the cutting area 110, the strip material conveying device 100 includes a plurality of conveying units arranged in sequence along the length direction of the strip material running passage, and each conveying unit includes at least one first conveying roller 102 mounted on the driving roller shaft 101; when the plurality of first conveying rollers 102 are attached to the conveyance roller shaft 101, the first conveying rollers 102 are sequentially arranged on the conveyance roller shaft 101 at intervals.
The spaced arrangement of the first conveyor rollers 102 reduces the amount of tape transport equipment that may be present in the area of the cutting medium (e.g., the laser irradiation area), and accordingly reduces damage to the tape transport apparatus 100 during the cutting of the tape. In addition, the first conveying rolling disc 102 is adopted as conveying equipment, on the premise of ensuring the reliable conveying requirement on the strip, the first conveying rolling disc 102 is very convenient to replace, and a defective first conveying rolling disc 102 can be replaced by a new standardized first conveying rolling disc 102, so that the situation that the whole conveying roller needs to be replaced by the conventional roller type conveying equipment is avoided, and the maintenance cost can be reduced; accordingly, the first conveying roller 102 is detachably fixedly mounted on the driving roller shaft 101.
In the above-mentioned scheme of "the conveying surface is made of a material resistant to laser irradiation", accordingly, the outer edge surface of the first conveying roller 102 may be made of a material resistant to laser irradiation, and the consumption of the laser irradiation resistant material required can be significantly reduced.
In one embodiment, as shown in fig. 3 and 4, in the first conveying rolling disc 102, the section of the rim ring for contacting the strip is in a spindle shape, that is, the rim ring is in a tapered structure from the inner ring to the outer ring, and based on the structure, the contact range of the first conveying rolling disc 102 and the strip can be further reduced, that is, the area of the conveying surface can be reduced, so that the damage of the cutting medium to the strip conveying equipment can be reduced.
The first conveying roller 102 may further include a core ring, the core ring is sleeved on the transmission roller shaft 101, and the rim ring is sleeved on the core ring; the wheel rim ring and the core ring are preferably detachably connected, for example, the wheel rim ring and the core ring are connected through an adapter plate, the adapter plate and the wheel rim ring can be connected through bolts and the like, and the adapter plate can be welded and fixed on the core ring and can also be fixed on the core ring through bolts. Based on the structure, the maintenance of the first conveying rolling disc 102 can be facilitated, namely, only the wheel rim ring needs to be replaced, and the maintenance cost can be effectively reduced.
Further, as shown in fig. 3, in the cutting area 110, a protection tube 105 is sleeved on the exposed transmission roller shaft 101 (i.e. on the roller shaft section not sleeved with the first conveying roller disc 102), so as to prevent the cutting medium from damaging the transmission roller shaft 101 during the cutting process, thereby further reducing the maintenance cost.
Further preferably, as shown in fig. 3 and 4, a plurality of second conveying rollers 103 are mounted on the shaft section of the driving roller shaft 101 extending to the non-cutting area 120. The outer peripheral surface of the second conveying rolling disc 103 is preferably a cylindrical ring surface, and has a relatively large contact area with the belt material, so that the belt material is reliably conveyed, the stress uniformity of each shaft section of the transmission roller shaft 101 can be improved, and the defects that the transmission roller shaft 101 is twisted and deformed and the like are avoided.
Wherein, each transport rolling disc on the driving roll axle 101 is equidistant to arrange, prevents the strip off tracking.
It will be appreciated that the axis of the driving roller shaft 101 is parallel to the width direction of the strip traveling passage, and the first conveying roller 102 and the second conveying roller 103 are preferably coaxially installed on the driving roller shaft 101. The transmission roller shaft 101 is connected to a conveying driving mechanism 104 for driving the transmission roller shaft to rotate around its own axis, and the conveying driving mechanism 104 may be a gear motor or a motor, and preferably, a servo motor or a servo motor.
Preferably, the strip material conveying device 100 before and after the cutting station also adopts a structure that a plurality of conveying rolling discs are sleeved by the driving roller shafts 101, and the driving roller shafts 101 are preferably arranged in sequence at equal intervals in the length direction of the strip material running passage. Further, as shown in fig. 4, each group of conveying driving mechanisms 104 is respectively arranged on both sides of the belt conveying passage, and it is further preferable that one transmission roller shaft 101 is provided between two groups of conveying driving mechanisms 104 adjacent to each other on the same side; based on the design, the deviation of the strip can be effectively prevented.
In one embodiment, pressure is applied to the strip material on both sides of the cut to prevent the severed strip material from bouncing upward when the strip material is cut, thereby better protecting the cutting equipment. The strip compression mechanism 200 can be configured accordingly, wherein the pressure applying part of the strip compression mechanism 200 is adapted to be able to follow the strip in order to cooperate with the operation of the strip and the operation of the cutting head 301.
In one embodiment, the strip pressing mechanism 200 is configured with an X-direction driving structure, for example, a pressing frame 201 with a traveling mechanism and a traveling driving structure (for example, a motor) are adopted, and the pressing frame 201 can share an X-direction guide rail with a gantry 303 of a gantry cutting machine or be configured with the X-direction guide rail separately; accordingly, the band pressing mechanisms 200 are disposed at the front and rear sides of the cutting machine, respectively. In another embodiment, the strip pressing mechanism 200 is integrally installed with the cutting machine, for example, the pressing frame 201 is installed on the gantry 303 of the gantry cutting machine, and since the strips on both sides of the cut seam need to be pressed respectively, the front and rear sides of the gantry 303 may be respectively provided with an installation bracket for installing the pressing frame 201.
Preferably, as shown in fig. 2 and 5, the strip pressing mechanism 200 includes a pressing beam 202 and a pressing driving structure 203 for driving the pressing beam 202 to move up and down, wherein the pressing driving structure 203 can drive the pressing beam 202 to move between a working position and a standby position, in the working position, the pressing beam 202 presses against the surface of the strip, and the standby position is located above the working position. The pressing beam 202 may be a pressing plate with a plate surface parallel to a horizontal plane, although a pressing roller and the like are also applicable to the present embodiment. The pressing driving structure 203 may be driven by a linear driving device such as an air cylinder or a hydraulic cylinder, or by a driving method such as a motor and a transmission assembly. The pressing driving structure 203 is installed on the pressing frame 201 and connected with the pressing beam 202.
Preferably, as shown in fig. 5, a guide structure is arranged on the pressing frame 201, and is used for guiding the lifting movement of the pressing beam 202, so as to improve the lifting stability and reliability of the pressing beam 202; the guiding structure may adopt a guiding manner of the guiding rod 2041-the guiding sleeve 2042, or a guiding manner of the guiding rail-the guiding slide block, which is not illustrated here. In this embodiment, as shown in fig. 5, a plurality of guide rods 2041 are mounted on the pressing beam 202, and a plurality of guide holes are correspondingly formed on the pressing frame 201; guide sleeve 2042 may further be installed within the guide bore, preferably with at least a portion of guide sleeve 2042 being a self-lubricating sleeve.
Wherein, an upper limit block can be arranged on the guide rod 2041 to limit the descending stroke of the guide rod 2041, so as to limit the descending stroke of the pressing beam 202 and prevent the pressing beam 202 from separating from the pressing frame 201; a lower limit block may be further provided on the guide rod 2041 to limit the ascending stroke of the guide rod 2041 and the pressing beam 202.
Further, as shown in fig. 5, the band pressing mechanism 200 further includes a buffer structure disposed between the pressing beam 202 and the pressing frame 201, which can improve the pressure adaptability when applying pressure to the band, and can effectively buffer the rebound force of the band to reduce the impact on the pressing drive structure 203 and the like. In one embodiment, as shown in fig. 5, the buffering structure includes a plurality of sets of buffering springs 205, the top ends of the buffering springs 205 abut against the pressing frame 201, and the bottom ends of the buffering springs 205 abut against the pressing beam 202; in the above scheme with the guide rod 2041, the buffer spring 205 can be sleeved on the guide rod 2041, and the buffer spring 205 can be constrained to only perform vertical telescopic movement. Furthermore, a plurality of sinking grooves are formed in the bottom of the pressing frame 201, the number of the sinking grooves is the same as that of the buffer springs 205, the sinking grooves are arranged in a one-to-one correspondence manner, and the top ends of the buffer springs 205 are accommodated in the corresponding sinking grooves, so that the stability and reliability of the vertical telescopic movement of the buffer springs 205 can be improved; in the case of a plurality of guide holes provided in the hold-down frame 201, a stepped hole with a narrow top and a wide bottom can be used, and the large-diameter hole section of the stepped hole is configured as the aforementioned undercut.
In one embodiment, as shown in fig. 6 and 7, a guide plate 206 is further disposed on the pressing frame 201, the guide plate 206 is mounted at the front end (i.e., steel side end) of the pressing frame 201, and the bottom end of the guide plate 206 is preferably not higher than the horizontal plane where the pressing beam is to be located. The bottom surface of the guide plate 206 is preferably an inclined guide surface that slopes downwardly from the front end to the rear end of the guide plate 206 (i.e., the front end of the guide surface is above the rear end). When the tape head passes through, the guide plate 206 can prevent the tape head from being warped upwards too much to damage the pressing plate, and can assist in threading the tape, thereby improving the production efficiency. In the case where the pressing frames 201 are provided at the front and rear of the cutting machine, it is preferable to provide the guide plate 206 only on the pressing frame 201 at the front side of the cutting machine.
In one embodiment, the pressing beam 202 is a beam body made of an electromagnet, or the pressing beam 202 is provided with an electromagnet, and a control power supply of the electromagnet can be mounted on the pressing frame 201 or can be connected with an external power supply through wiring of the pressing frame 201. Based on the structure, when the pressing beam 202 is pressed down, the electromagnet is electrified, so that the pressing beam 202 can be adsorbed and pressed on the surface of the strip, and the pressing effect and the running synchronism of the strip are obviously improved.
Correspondingly, the embodiment of the present invention further provides a strip cutting device, which can be used in the first embodiment or the second embodiment to cut a strip into a plate product, where specific setting positions have been mentioned and are not described herein again.
The strip cutting device includes:
a cutting head 301 disposed above the running path of the strip, the cutting head 301 being provided with a head drive mechanism having a first drive stroke for driving the cutting head 301 to move in the direction of the length of the running path of the strip and a second drive stroke for driving the cutting head 301 to move in the direction of the width of the running path of the strip;
and the controller is used for receiving a cutting instruction and controlling the cutting head driving mechanism to work when the strip runs to the set position so as to enable the cutting head 301 to move according to a preset cutting head running path and cut the strip, and the cutting head running path is used for enabling the cutting head 301 to keep follow-up with the strip in the length direction of the strip and enable transverse cutting movement relative to the strip in the width direction of the strip.
Wherein, the controller can be integrated into a central control room of the production line.
The cutting head 301 is preferably a laser cutting head.
The related components and structures of the above-mentioned band cutting device can be referred to the related contents, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a strip processing lines who contains secondary rolling process, includes that the strip traffic direction links up the workshop section of opening a book that arranges in proper order, first annealing pickling workshop section and first product collection workshop section, its characterized in that: the device also comprises a rolling mill, a second annealing and pickling section, a plate type finishing section and a second product collecting section which are sequentially connected and arranged along the running direction of the strip, wherein the first product collecting section is connected with the rolling mill through a strip transferring structure.
2. The strip processing line containing a secondary rolling pass of claim 1, wherein: the second annealing and pickling section comprises an argon protection rapid heating annealing furnace and a light pickling unit, wherein the argon protection rapid annealing furnace adopts a resistance furnace or an induction heating furnace.
3. A strip processing line comprising a secondary rolling pass according to claim 2, wherein: the light acid washing unit comprises a neutral salt electrolysis section and a mixed acid washing section.
4. The strip processing line containing a secondary rolling pass of claim 1, wherein: the rolling mill adopts an online 18-roller rolling mill or a 6-roller continuous rolling mill with small roller diameter.
5. The strip processing line containing a secondary rolling pass of claim 1, wherein: the first product collecting section comprises a first coiling machine and a first plate collecting device, and the first coiling machine is connected with the first plate collecting device through a transition guide plate; and/or the second product collecting section comprises a second coiling machine and a second plate collecting device, and the second coiling machine is connected with the second plate collecting device through a transition guide plate.
6. A strip processing line comprising a secondary rolling pass according to claim 1, wherein: the uncoiling working section comprises a double uncoiler and a welding machine, and the two uncoilers are connected with the welding machine.
7. A strip treatment method, characterized in that the method is carried out on the strip treatment line comprising a secondary rolling pass according to any one of claims 1 to 6,
when hot rolled strips are treated, strip raw materials are sequentially treated by an uncoiling working section and a first annealing and pickling working section, and obtained products are collected by a first product collecting working section;
when the cold-rolled strip or the strip needs to be thinned during processing, the strip raw material is sequentially processed by an uncoiling working section, a first annealing and pickling working section, a rolling mill, a second annealing and pickling working section and a plate type finishing working section, and the obtained product is collected by the second product collecting working section.
8. The method of processing strip of claim 7, wherein: the strip is stainless steel or titanium.
9. The method of processing strip of claim 7, wherein: the products collected by the first product collecting station and the second product collecting station are coiled materials or plates.
10. The method of processing strip of claim 7, wherein: the second annealing and pickling section comprises an argon protection rapid heating annealing furnace and a light pickling unit, wherein the argon protection rapid annealing furnace adopts a resistance furnace or an induction heating furnace; the light acid washing unit comprises a neutral salt electrolysis section and a mixed acid washing section, wherein the mixed acid washing section adopts HF and HNO 3 The mixed pickling solution of (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210822268.8A CN115318869A (en) | 2022-07-12 | 2022-07-12 | Strip processing production line containing secondary rolling process and strip processing method |
| PCT/CN2023/086414 WO2024011966A1 (en) | 2022-07-12 | 2023-04-06 | Strip processing production line containing secondary rolling process, an strip processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210822268.8A CN115318869A (en) | 2022-07-12 | 2022-07-12 | Strip processing production line containing secondary rolling process and strip processing method |
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| CN115318869A true CN115318869A (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210822268.8A Pending CN115318869A (en) | 2022-07-12 | 2022-07-12 | Strip processing production line containing secondary rolling process and strip processing method |
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| Country | Link |
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| CN (1) | CN115318869A (en) |
| WO (1) | WO2024011966A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024011966A1 (en) * | 2022-07-12 | 2024-01-18 | 中冶南方工程技术有限公司 | Strip processing production line containing secondary rolling process, an strip processing method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5197179A (en) * | 1991-04-18 | 1993-03-30 | T. Sendzimir, Inc. | Means and a method of improving the quality of cold rolled stainless steel strip |
| CN1128182A (en) * | 1994-01-10 | 1996-08-07 | 梯品斯股份有限公司 | Intermediate thickness twin slab caster and inline hot strip and plate line |
| KR20060074398A (en) * | 2004-12-27 | 2006-07-03 | 주식회사 포스코 | Apparatus for manufacturing cold rolled stainless coil by semi-sequential way |
| US20160214207A1 (en) * | 2013-09-12 | 2016-07-28 | Hitachi Zosen Fukui Corporation | Laser blanking apparatus and processing method using same |
| CN106965449A (en) * | 2017-04-27 | 2017-07-21 | 嘉峪关天源新材料有限责任公司 | The continuous production device and production method of a kind of resin-bonded composite plate |
| CN107962074A (en) * | 2017-12-04 | 2018-04-27 | 中冶南方工程技术有限公司 | A kind of stainless steel cold-rolled plate continuous process system and method |
| CN108405608A (en) * | 2018-02-08 | 2018-08-17 | 中冶南方工程技术有限公司 | A kind of stainless-steel cold-rolling production unit and its production method |
| CN212444119U (en) * | 2020-05-25 | 2021-02-02 | 广西先进铝加工创新中心有限责任公司 | Production system of aluminum alloy coiled material/plate |
| CN217948225U (en) * | 2022-07-12 | 2022-12-02 | 中冶南方工程技术有限公司 | Strip processing production line containing secondary rolling process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670256A (en) * | 2017-02-27 | 2017-05-17 | 江西凯顺科技有限公司 | Copper/aluminum sheet and strip continuous extrusion-rolling and molding set |
| CN107042239B (en) * | 2017-05-24 | 2020-08-11 | 广西北部湾新材料有限公司 | Continuous rolling continuous annealing and washing production system capable of switching multi-grade stainless steel strips on line |
| CN115318869A (en) * | 2022-07-12 | 2022-11-11 | 中冶南方工程技术有限公司 | Strip processing production line containing secondary rolling process and strip processing method |
-
2022
- 2022-07-12 CN CN202210822268.8A patent/CN115318869A/en active Pending
-
2023
- 2023-04-06 WO PCT/CN2023/086414 patent/WO2024011966A1/en unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5197179A (en) * | 1991-04-18 | 1993-03-30 | T. Sendzimir, Inc. | Means and a method of improving the quality of cold rolled stainless steel strip |
| CN1128182A (en) * | 1994-01-10 | 1996-08-07 | 梯品斯股份有限公司 | Intermediate thickness twin slab caster and inline hot strip and plate line |
| KR20060074398A (en) * | 2004-12-27 | 2006-07-03 | 주식회사 포스코 | Apparatus for manufacturing cold rolled stainless coil by semi-sequential way |
| US20160214207A1 (en) * | 2013-09-12 | 2016-07-28 | Hitachi Zosen Fukui Corporation | Laser blanking apparatus and processing method using same |
| CN106965449A (en) * | 2017-04-27 | 2017-07-21 | 嘉峪关天源新材料有限责任公司 | The continuous production device and production method of a kind of resin-bonded composite plate |
| CN107962074A (en) * | 2017-12-04 | 2018-04-27 | 中冶南方工程技术有限公司 | A kind of stainless steel cold-rolled plate continuous process system and method |
| CN108405608A (en) * | 2018-02-08 | 2018-08-17 | 中冶南方工程技术有限公司 | A kind of stainless-steel cold-rolling production unit and its production method |
| CN212444119U (en) * | 2020-05-25 | 2021-02-02 | 广西先进铝加工创新中心有限责任公司 | Production system of aluminum alloy coiled material/plate |
| CN217948225U (en) * | 2022-07-12 | 2022-12-02 | 中冶南方工程技术有限公司 | Strip processing production line containing secondary rolling process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024011966A1 (en) * | 2022-07-12 | 2024-01-18 | 中冶南方工程技术有限公司 | Strip processing production line containing secondary rolling process, an strip processing method |
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| Publication number | Publication date |
|---|---|
| WO2024011966A1 (en) | 2024-01-18 |
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