CN219944144U - Deoiling device in copper strip finish rolling process - Google Patents
Deoiling device in copper strip finish rolling process Download PDFInfo
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- CN219944144U CN219944144U CN202320839532.9U CN202320839532U CN219944144U CN 219944144 U CN219944144 U CN 219944144U CN 202320839532 U CN202320839532 U CN 202320839532U CN 219944144 U CN219944144 U CN 219944144U
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- copper strip
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- roller
- oil
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 194
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 193
- 239000010949 copper Substances 0.000 title claims abstract description 193
- 238000005096 rolling process Methods 0.000 title claims abstract description 28
- 238000007664 blowing Methods 0.000 claims abstract description 88
- 239000003921 oil Substances 0.000 claims abstract description 54
- 239000010731 rolling oil Substances 0.000 claims abstract description 48
- 238000005238 degreasing Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 58
- 239000010959 steel Substances 0.000 claims description 58
- 238000002347 injection Methods 0.000 claims description 39
- 239000007924 injection Substances 0.000 claims description 39
- 238000005507 spraying Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 21
- 238000005406 washing Methods 0.000 abstract description 13
- 238000003466 welding Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000002161 passivation Methods 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- 230000000391 smoking effect Effects 0.000 abstract description 4
- 238000010926 purge Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 38
- 239000007788 liquid Substances 0.000 description 24
- 238000004140 cleaning Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 17
- 238000000137 annealing Methods 0.000 description 15
- 239000000779 smoke Substances 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 238000005097 cold rolling Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000009749 continuous casting Methods 0.000 description 4
- 238000005237 degreasing agent Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000013527 degreasing agent Substances 0.000 description 3
- 238000004049 embossing Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000010408 sweeping Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model provides an oil removing device in a copper strip finish rolling process. The degreasing device comprises a lower base, wherein a 3M squeezing roller, a first air blowing device and a second air blowing device are sequentially arranged along the running direction of a copper strip, and the 3M squeezing roller is used for squeezing rolling oil on the copper strip; the first air blowing device is used for carrying out first blowing on the rolling oil on the surface of the copper strip after the 3M squeezing roller squeezes, and the aperture of the first air blowing hole of the first air blowing device is gradually reduced from inside to outside along the axial direction of the first air blowing hole; the second air blowing equipment is used for carrying out second blowing on the rolling oil on the surface of the copper strip after the first blowing, and the aperture of the second air blowing equipment is gradually increased from inside to outside along the axial direction of the second air blowing hole. Therefore, residual oil on the surface of the copper strip is greatly reduced through the cooperative cooperation of the first purging and the second purging, and the copper strip is subjected to thick washing, thin washing, acid washing and passivation protection, so that the phenomenon of smoking of the copper strip in the production and welding process of the radio frequency cable is avoided.
Description
Technical Field
The utility model relates to the technical field of argon arc welding copper strip machining, in particular to an oil removing device in a copper strip finish rolling process.
Background
The application of the radio frequency copper strip is continuous argon arc welding, the requirement on the residual oil quantity of the strip surface is extremely high, the problem of welding smoke is caused by trace residual oil which cannot be observed by naked eyes, and the surface residual oil condition can be indirectly measured by the method of detecting the surface tension of the strip surface by applying a dyne pen for the first time in the industry. At present, a copper strip high-speed finishing mill generally adopts full oil lubrication, and strip surface oil removal after copper strip rolling is an industrial problem, and the existing oil removal mode is generally divided into rolling mill oil removal and cleaning oil removal, so that the problem of smoking caused by welding of a radio frequency copper strip is always unstable, and the problem of smoking caused by welding of the radio frequency copper strip occurs.
In the copper strip rolling process, the viscosity of the rolling oil is increased continuously due to long-term use of the rolling oil, so that the adhesive force between the copper strip and the rolling oil is increased, and the difficulty is increased for the subsequent cleaning work of residual oil on the surface of the copper strip; meanwhile, after finish rolling and reeling down, the residual oil amount of the copper coil is larger, and the consumption of the thick grease-washing agent and the thin cleaning liquid is increased, so that economic loss is caused; most importantly, residual oil is attached to the surface of a finished radio frequency copper strip, so that the copper strip generates smoke phenomenon in the production and welding process of the radio frequency cable, the welding process is unstable in molding, jump welding occurs, and cracking phenomenon occurs in the subsequent embossing process, so that the radio frequency cable is unqualified.
The existing finishing mill degreasing device is complex in structure and poor in degreasing effect, and the surface of the degreased copper strip often remains oil marks after annealing to influence the appearance of the product, so that more residual oil also causes the increase of production cost to a certain extent, and particularly, the surface of the copper strip is scratched easily due to the adoption of multiple rollers.
Disclosure of Invention
The utility model mainly aims to provide an oil removing device in a copper strip finish rolling process, so as to solve the problems of complex oil removing device and poor oil removing effect in the copper strip finish rolling process in the prior art.
In order to achieve the above object, according to one aspect of the present utility model, there is provided a degreasing device in a copper strip finishing process, the degreasing device comprising a lower base, a 3M wringing roller, a first air blowing device and a second air blowing device sequentially arranged along a copper strip running direction, wherein the 3M wringing roller has an upper roller and a lower roller, the upper roller and the lower roller are fixed on the lower base, a gap for passing a copper strip is provided between the upper roller and the lower roller, and the 3M wringing roller is used for squeezing rolling oil on the copper strip; the first air blowing device is used for carrying out first blowing on rolling oil on the surface of the copper strip after the 3M squeezing roller is squeezed, and comprises a first fixed plate, a first movable plate and a bent steel pipe, wherein the first fixed plate is fixed on the lower base, the first movable plate is opposite to the first fixed plate, the distance between the first movable plate and the first fixed plate is adjustable, two ends of the bent steel pipe are fixed on the side surface of the first movable plate, which is opposite to the 3M squeezing roller, of the bent steel pipe, a plurality of first air spraying holes facing the copper strip are formed in the bent steel pipe at intervals, the first air spraying holes are axially along the first air spraying holes, and the aperture of the first air spraying holes is gradually reduced from inside to outside; the second air blowing equipment is used for carrying out the second to the rolling oil on the copper strips surface after the first blowing, the second air blowing equipment includes second fixed plate, second movable plate and straight steel pipe, the second fixed plate is fixed in on the lower base, the second movable plate sets up relatively with the second fixed plate, and the second movable plate is adjustable for the distance between the second fixed plate, the both ends of straight steel pipe are fixed in on the side of second movable plate's the back 3M wringing roller, straight steel pipe interval is provided with a plurality of second fumaroles towards the copper strips, the second fumaroles are along second fumaroles axial, its aperture is from inside to outside increases gradually.
Further, the included angle between the axial direction of the first air injection hole and the running direction of the copper strip is 2-6 degrees, and the included angle gradually increases from the middle of the bent steel pipe to the two ends.
Further, the aperture of the first air injection hole is from inside to outsideTo->Gradually decreasing.
Further, the minimum vertical distance between the curved steel pipe and the surface of the copper strip is 8-10 mm.
Further, the horizontal distance between the first air blowing device and the second air blowing device is 19-20 cm.
Further, 28-30 first air injection holes are formed in the bent steel pipe, and the interval between every two adjacent first air injection holes is 8-9 mm.
Further, the vertical distance between the straight steel pipe and the surface of the copper strip is 6-8 mm.
Further, 20-22 second air injection holes are formed in the straight steel pipe, and the interval between every two adjacent second air injection holes is 14-15 mm.
Further, the aperture of the second air injection hole is from inside to outsideTo->Gradually increasing.
Further, the horizontal distance between the first air blowing device and the 3M squeezing roller is 29 cm-30 cm.
Further, the axial sections of the first air jet hole and the second air jet hole are trapezoidal, and the radial sections of the first air jet hole and the second air jet hole are circular.
Further, the two ends of the first moving plate and the first fixing plate, and the two ends of the second moving plate and the second fixing plate are respectively and independently fixed by a telescopic component, and the telescopic component is a telescopic bolt.
Further, the oil removing device further comprises a gas heating device, and the gas heating device is connected with the straight steel pipe and is used for providing hot gas flow for the straight steel pipe.
By applying the technical scheme of the utility model, the 3M squeezing roller has porous characteristics and good consistency, so that the 3M squeezing roller and the whole copper strip are always kept in close contact, a uniform squeezing effect can be generated, and the optimal squeezing performance is obtained; meanwhile, the 3M squeezing roller has a higher friction coefficient, so that an auxiliary motor is not needed, and a faster processing speed of a production line can be obtained, so that the 3M roller squeezing can generate a uniform squeezing effect, a large amount of residual oil attached to the surface of the copper strip is squeezed, and a large amount of residual oil on the surface of the copper strip is removed. Because the structure of the first air jet hole can jet high-pressure air flow, the first air blowing equipment with the first air jet hole is used for blowing the surface of the copper strip for the first time, so that the binding force between the surface of the copper strip and rolling oil is reduced; the structure of the second air jet hole can jet low-pressure air flow, so that rolling oil dispersed on the surface of the copper strip after the first blowing is blown by the second air jet device with the second air jet hole, residual oil on the surface of the copper strip is greatly reduced through the cooperative cooperation of the first blowing and the second blowing, the residual rolling oil with strong binding force on the surface of the copper strip is saponified and degreased by degreasing liquid through the thick washing process of the copper strip, the degreasing cleaning is carried out again by using a 3M wringing roller, and the copper strip enters a finished product hood-type annealing process. After the copper strip is annealed by a finished product, the residual oil on the surface of the copper strip is thoroughly removed by a liquid degreasing liquid through a similar compatibility principle, the copper strip is squeezed by a 3M squeezing roller, oxides generated on the surface of the copper strip in the annealing process are removed by acid washing sequentially, the copper strip is squeezed by a second 3M squeezing roller, finally the copper strip is prevented from being oxidized by a passivation liquid, and the residual liquid on the surface of the copper strip is squeezed by the third 3M squeezing roller, so that the phenomenon that the copper strip is smoke in the production and welding process of the radio frequency cable is avoided, and a qualified radio frequency cable is obtained.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 shows a degreasing device in a copper strip finish rolling process according to embodiment 1 of the present utility model.
Wherein the above figures include the following reference numerals:
1. copper strips; 2. 3M squeezing roller; 3. a first air blowing device; 4. a second air blowing device; 5. a first fixing plate; 6. a first moving plate; 7. bending the steel pipe; 8. a second fixing plate; 9. a second moving plate; 10. a straight steel pipe.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As analyzed by the background art of the utility model, the prior art has the problems of complex oil removal device and poor oil removal effect in the copper strip finish rolling process, and in order to solve the problems, the utility model provides the oil removal device in the copper strip finish rolling process.
In a typical embodiment of the present utility model, as shown in fig. 1, there is provided a degreasing device in a copper strip finish rolling process, the degreasing device includes a lower base, a 3M wringing roller 2, a first air blowing device 3 and a second air blowing device 4 are sequentially disposed along a running direction of a copper strip 1, wherein the 3M wringing roller 2 has an upper roller and a lower roller, and is fixed on the lower base, a gap for passing through the copper strip 1 is provided between the upper roller and the lower roller, and the 3M wringing roller 2 is used for extruding rolling oil on the copper strip 1; the first air blowing device 3 is used for carrying out first blowing on rolling oil on the surface of the copper strip 1 after the 3M wringing roller 2 wrings, the first air blowing device 3 comprises a first fixed plate 5, a first movable plate 6 and a bent steel pipe 7, the first fixed plate 5 is fixed on a lower base, the first movable plate 6 is opposite to the first fixed plate 5, the distance between the first movable plate 6 and the first fixed plate 5 is adjustable, two ends of the bent steel pipe 7 are fixed on the side surface of the first movable plate 6 facing away from the 3M wringing roller 2, the bent steel pipe 7 is provided with a plurality of first air holes facing the copper strip 1 at intervals, the first air holes are axially along the first air holes, and the aperture of the first air holes is gradually reduced from inside to outside; the second air blowing equipment 4 is used for carrying out the second to the rolling oil on the copper strips 1 surface after the first sweeps, the second air blowing equipment 4 includes second fixed plate 8, second movable plate 9 and straight steel pipe 10, second fixed plate 8 is fixed in on the lower base, second movable plate 9 sets up with second fixed plate 8 relatively, and the distance between second movable plate 9 for second fixed plate 8 is adjustable, the both ends of straight steel pipe 10 are fixed in on the side of second movable plate 9 facing away from 3M wringing roller 2, straight steel pipe 10 interval is provided with a plurality of second fumaroles towards copper strips 1, the second fumaroles are along second fumaroles axial, its aperture is from inside to outside progressively increases.
The 3M squeezing roller 2 has porous characteristics and good consistency, so that the 3M squeezing roller and the whole copper strip are kept in close contact all the time, a uniform squeezing effect can be generated, and the optimal squeezing performance is obtained; meanwhile, the 3M squeezing roller has a higher friction coefficient, so that an auxiliary motor is not needed, and a faster processing speed of a production line can be obtained, so that the 3M roller squeezing can generate a uniform squeezing effect, a large amount of residual oil attached to the surface of the copper strip is squeezed, and a large amount of residual oil on the surface of the copper strip is removed. Because the structure of the first air jet hole can jet high-pressure air flow, the first air blowing equipment 3 with the first air jet hole is used for blowing the surface of the copper strip for the first time, so that the binding force between the surface of the copper strip and rolling oil is reduced; the structure of the second air jet hole can jet low-pressure air flow, so that rolling oil dispersed on the surface of the copper strip after the first blowing is blown by the second air jet device 4 with the second air jet hole, residual oil on the surface of the copper strip is greatly reduced through the cooperative cooperation of the first blowing and the second blowing, the residual rolling oil with strong binding force on the surface of the copper strip is saponified and degreased by degreasing liquid through the thick copper strip washing process, the 3M wringing roller after degreasing and cleaning is wringed again, and the copper strip enters a finished product hood-type annealing process. After the copper strip is annealed by a finished product, the residual oil on the surface of the copper strip is thoroughly removed by a liquid degreasing liquid through a similar compatibility principle, the copper strip is squeezed by a 3M squeezing roller, oxides generated on the surface of the copper strip in the annealing process are removed by acid washing sequentially, the copper strip is squeezed by a second 3M squeezing roller, finally the copper strip is prevented from being oxidized by a passivation liquid, and the residual liquid on the surface of the copper strip is squeezed by the third 3M squeezing roller, so that the phenomenon that the copper strip is smoke in the production and welding process of the radio frequency cable is avoided, and a qualified radio frequency cable is obtained.
In some embodiments of the present utility model, the angle between the axial direction of the first gas injection hole and the running direction of the copper strip 1 is controlled to be 2-6 degrees, and the angle gradually increases from the middle of the bent steel pipe 7 to the two ends.
The arrangement of the included angle between the axial direction of the first air injection hole and the running direction of the copper strip 1 is beneficial to blowing the rolling oil at the middle position of the surface of the copper strip 1 to two sides of the copper strip by utilizing the air flow injected by the first air injection hole, so that the rolling oil is blown away from the surface of the copper strip 1.
In some embodiments of the present utility model, the first gas injection holes have a diameter from inside to outsideTo the direction of Gradually decrease, e.g. from->To->Gradually decrease from->To->Gradually decrease from->To->Gradually decrease, or from->To->Gradually decreasing.
The first air jet holes with the aperture are favorable for controlling the pressure of the first air jet holes sprayed to the surface of the copper strip 1 to be 0.4-0.45 MPa, such as 0.4MPa, 0.41MPa, 0.42MPa, 0.43MPa, 0.44MPa or 0.45MPa, and the air quantity is controlled to be 15+/-1 m 3 /h, e.g. 14m 3 /h、14.5m 3 /h、15m 3 /h、15.5m 3 /h or 16m 3 And/h, thereby better exerting the blowing effect of the airflow on the rolling oil on the surface of the copper strip 1.
In some embodiments of the utility model, the minimum vertical distance between the curved steel pipe 7 and the surface of the copper strip 1 is controlled to be 8-10 mm, such as 8mm, 9mm or 10mm, so that the airflow has strong impact force on the surface of the copper strip 1.
In some embodiments of the present utility model, the horizontal distance between the first air blowing device 3 and the second air blowing device 4 is controlled to be 19-20 cm, such as 19cm, 19.5cm or 20cm, so as to facilitate timely removal of the rolling oil dispersed by the first air blowing device 3.
In some embodiments of the present utility model, 28 to 30 first air holes, such as 28, 29 or 30 first air holes, are disposed on the curved steel pipe 7, and the interval between adjacent first air holes is 8 to 9mm, such as 8mm, 8.5mm or 9mm, which is more favorable for the air flow to form strong impact force on the surface of the copper strip 1, so as to blow the rolling oil on the surface of the copper strip 1 away from the surface of the copper strip as much as possible.
In some embodiments of the present utility model, the vertical distance between the straight steel pipe 10 and the surface of the copper strip 1 is controlled to be 6-8 mm, such as 6mm, 7mm or 8mm is preferable, so as to help control the acting force of the air flow and the surface of the copper strip 1, and exert the entrainment effect of the air flow on the rolling oil on the surface of the copper strip 1 as much as possible.
In some embodiments of the present utility model, 20 to 22 second gas injection holes are provided on the straight steel pipe 10, and the interval between adjacent second gas injection holes is 14 to 15mm.
The interval (such as 14mm, 14.5mm or 15 mm) between the second air injection holes and the number (such as 20, 21 or 22) of the second air injection holes are controlled, so that uniform dispersion of gas on the surface of the copper strip 1 is facilitated, rolling oil on the surface of the copper strip 1 is taken away through gas flow, and removal of the rolling oil on the surface of the copper strip 1 is realized.
In one embodiment of the utility model, the aperture of the second air injection hole is from inside to outsideTo the direction ofGradually increasing, e.g. preferably from +.>To->Gradually increase from->To->Gradually increase fromTo->Gradually increase, or from->To->Gradually increasing.
The second air jet holes with the aperture are favorable for better controlling the pressure of the second air jet holes sprayed to the surface of the copper strip 1 to be 0.25-0.30 MPa (such as 0.25MPa, 0.26MPa, 0.27MPa, 0.28MPa, 0.29MPa or 0.30 MPa), and the air quantity to be 25+/-1 m 3 /h (e.g. 24m 3 /h、24.5m 3 /h、25m 3 /h、25.5m 3 /h or 26m 3 And/h) so as to better play the effect of the airflow on removing the rolling oil on the surface of the copper strip 1.
In one embodiment of the present utility model, the horizontal distance between the first air blowing device 3 and the 3M wringing roller 2 is 29-30 cm.
The preferred horizontal distance (such as 29cm, 29.5cm or 30 cm) between the first air blowing device 3 and the 3M wringing roller 2 is helpful for blowing the rolling oil extruded by the 3M wringing roller 2 from the copper strip 1 away from the surface of the copper strip 1 at the first time as much as possible, so as to reduce the contact time of the extruded rolling oil and the copper strip 1, thereby reducing the probability that the extruded rolling oil is absorbed by the copper strip again as much as possible, and further improving the oil removing effect.
In one embodiment of the present utility model, the axial sections of the first gas injection hole and the second gas injection hole are trapezoidal, and the radial sections of the first gas injection hole and the second gas injection hole are circular.
The structure of the first air jet holes with the shape is regular and consistent, rolling oil on the surface of the copper strip 1 after the 3M squeezing roller 2 is squeezed is more conducive to powerful and uniform sweeping, so that rolling oil on the surface of the copper strip 1 is blown away from the surface of the copper strip 1 as much as possible, the dispersibility of residual rolling oil on the copper strip 1 is improved, and the uniform structure of the second air jet holes is conducive to uniform volatilization of the rolling oil on the surface of the copper strip 1 after the first sweeping, so that the overall sweeping effect of the rolling oil on the surface of the copper strip 1 is improved.
In one embodiment of the present utility model, the two ends of the first moving plate 6 and the first fixed plate 5, and the two ends of the second moving plate 9 and the second fixed plate 8 are respectively and independently fixed by a telescopic member, and the telescopic member is a telescopic bolt.
Through the design, the distance between each of the first air jet hole and the second air jet hole and the copper strip 1 can be flexibly adjusted, so that the process of the process can be better adapted to be adjusted and controlled, wherein the telescopic parts can be the same or similar parts as other telescopic bolts, and the telescopic parts are not repeated here.
In one embodiment of the present utility model, the oil removing apparatus further comprises a gas heating device connected to the straight steel pipe 10 for providing a hot gas flow to the straight steel pipe 10.
The gas is heated by a gas heating device, and the temperature of the heated gas is preferably controlled to be 50-60 ℃, so that the gas sprayed from the second gas spraying holes has a certain amount of heat, and the hot gas flow is used for helping to accelerate volatilization of the rolling oil on the surface of the copper strip 1 after the first blowing. Further, it is preferred that the gas heating device is a small compressed air heater having a gas storage tank, equipped with a temperature control knob for controlling the temperature of the gas stored therein, a thermometer, and having a power interface for providing energy for heating the gas through an electrical connection.
In addition, the running speed of the copper strip 1 is reduced to 260-280 m/min (such as 260m/min, 270m/min or 280 m/min) from 300-320 m/min which is conventional in the prior art, so that the oil removing effect is more beneficial to the exertion, and the residual oil quantity on the surface of the copper strip 1 after the copper strip is coiled down is reduced.
The advantageous effects of the present utility model will be further described below with reference to examples.
Example 1
Weighing, proportioning, and sequentially passing through a horizontal continuous casting step, a face milling step, a rough rolling step, a thick shearing step, an intermediate annealing step, a finish rolling step, a copper strip thick washing step, a finished product annealing step, a copper strip thin washing step, a finished product cutting step, a finished product detecting step and a finished product packaging step to obtain the argon arc welding non-smoking copper strip.
Horizontal continuous casting: the horizontal continuous casting process has the function of smelting high-quality grade-A cathode copper into 17mm 445mm (thickness: width) standard casting blanks through an electrolytic method at the temperature of 1145-1180 ℃.
Milling: the horizontal continuous casting blank is milled on the upper surface and the lower surface, the milling quantity is controlled within the range of 0.4-0.85 mm, the defects of the strip surface are milled, and a good strip is provided for cold rolling.
Rough rolling: the copper strip rough rolling procedure has the function of rolling the copper strip with the milled surface in the thickness direction, and reducing the thickness from the original 17mm to 0.7mm or 0.5mm intermediate material through 9-10 times of cold rolling.
And (3) thick shearing: the main function of the thick shearing procedure is to cut edges of the rough rolled copper strip, remove casting and rolling split defects on two sides of the copper strip, and cut the width from 445mm to 425mm.
Intermediate annealing: after cold rolling, the copper coil is subjected to work hardening, and the material is subjected to intermediate annealing by a bell-type protective gas annealing furnace, so that the work hardening generated during cold rolling is eliminated, the metal plasticity is recovered, the cold rolling is continued, and the thickness of the strip is continuously reduced, so that the material is subjected to an intermediate annealing process.
Finish rolling: directly rolling the intermediate material subjected to intermediate annealing to the thickness of a finished product through a four-roller finishing mill, and sequentially performing 3M wringing rollers and air-blowing degreasing steps (first blowing and second blowing) according to a device shown in FIG. 1 in the final finishing rolling;
the partial device for removing oil in the final finish rolling is shown in fig. 1, and comprises a lower base, and a 3M squeezing roller 2, a first air blowing device 3 and a second air blowing device 4 are sequentially arranged along the running direction of a copper strip 1 (the running speed is 280M/min).
The 3M squeezing roller 2 is provided with an upper roller and a lower roller, the upper roller and the lower roller are fixed on the lower base, a gap for the copper strip 1 to pass through is arranged between the upper roller and the lower roller, and the 3M squeezing roller 2 is used for squeezing rolling oil on the copper strip 1; the first air blowing device 3 is used for carrying out first blowing on the rolling oil on the surface of the copper strip 1 after the 3M squeezing roller 2 squeezes, the pressure of the first blowing is controlled to be 0.45MPa, and the air quantity is controlled to be 15M 3 And/h, the horizontal distance between the first air blowing device 3 and the 3M wringing roller 2 is 30cm. The first air blowing device 3 comprises a first fixed plate 5, a first movable plate 6 and a bent steel tube 7, wherein the first fixed plate 5 is fixed on the lower base, and the first movable plate 6 is opposite to the first fixed plate 5The device is characterized in that the first movable plate 6 is fixed relative to the first fixed plate 5 through telescopic bolts, two ends of a bent steel pipe 7 are fixed on the side surface of the first movable plate 6 facing away from the 3M wringing roller 2, the minimum vertical distance between the surface of the bent steel pipe 7 and the surface of a copper strip 1 is 10mm, first gas spraying holes of which 30 faces the copper strip 1 are arranged at intervals on the bent steel pipe 7, the interval between adjacent first gas spraying holes is 9mm, the axial section of each first gas spraying hole is trapezoid, the radial section of each first gas spraying hole is circular, the first gas spraying holes are axially along the first gas spraying holes, and the aperture of each first gas spraying hole is from inside to outsideTo->The included angle between the axial direction of the first air injection hole and the running direction of the copper strip 1 is 2-6 degrees, and the included angle is gradually increased from the middle of the bent steel pipe 7 to the two ends.
The second air blowing device 4 is used for carrying out second blowing on the rolling oil on the surface of the copper strip 1 after the first blowing, the pressure of the second blowing is controlled to be 0.25MPa, and the air quantity is controlled to be 25m 3 And/h. The second air blowing device 4 comprises a second fixed plate 8, a second movable plate 9 and a straight steel tube 10, wherein the second fixed plate 8 is fixed on the lower base, the second movable plate 9 and the second fixed plate 8 are oppositely arranged, the distance between the second movable plate 9 and the second fixed plate 8 is adjustable, two ends of the straight steel tube 10 are fixed on the side surface, facing away from the 3M wringing roller 2, of the second movable plate 9, and the vertical distance between the straight steel tube 10 and the surface of the copper strip 1 is 8mm. The straight steel pipe 10 is connected with a small compressed air heater so that the temperature of the air flow coming out of the second air injection hole is 60 ℃. The straight steel pipe 10 is provided with second air jet holes 22 facing the copper strip 1 at intervals, the interval between every two adjacent second air jet holes is 15mm, the axial section of each second air jet hole is trapezoid, the radial section of each second air jet hole is circular, the second air jet holes are axially along the second air jet holes, and the apertures of the second air jet holes are from inside to outsideTo->Gradually increasing.
The horizontal distance between the first air-blowing device 3 and the second air-blowing device 4 is 20cm.
In the whole finish rolling step, the viscosity of the rolling oil is controlled to be 6.0mm 2 /s。
Edge oil absorption treatment: the residual oil at the two side edges of the copper coil after finish rolling and unreeling is sucked by a wet and dry dust collector with the capacity of 30L, the power of 1400W, the vacuum degree of 20KPA and the suction force of 19000Pa, and the rolling oil is sucked by a wet function, so that the oil content of the copper coil is reduced.
Thick belt cleaning: cleaning and drying rolling oil on the surface of the copper strip subjected to finish rolling and unreeling by adopting cleaning liquid, specifically spraying the cleaning liquid on the surface of the copper strip by adopting a nozzle, and brushing the surface of the copper strip by adopting a cleaning brush; the direction of spraying the cleaning liquid by the nozzle is opposite to the rotation direction of the cleaning brush, and the contact point between the cleaning brush and the surface of the copper strip coincides with the spraying point sprayed by the nozzle. Wherein, the specification of the drying roller isThe cleaning solution comprises solid degreasing agent K601 and CM-082, and the mass concentration of the solid degreasing agent K601 is 3wt%.
And (3) annealing a finished product: in nitrogen atmosphere, the temperature is controlled at 320 ℃, the heat preservation time is 3h, the flow rate of nitrogen is increased by 20% in the heat preservation stage, so that the state (performance) of a product is controlled, the performance is kept uniform, the uneven stress is eliminated, the adhesion of the surface of a copper strip is eliminated, the flatness of the strip is ensured, and the required performance state is achieved.
And (3) thin washing of the copper strip: degreasing and cleaning residual oil on the surface of the finished annealed copper strip by using degreasing liquid, wherein the cleaning liquid comprises alkaline liquid degreasing agents K803 and K610, the mass concentration of the alkaline liquid degreasing agent K803 is 5wt%, meanwhile, oxidized spots on the surface of the copper strip are removed by pickling, and finally, the surface of the copper strip is passivated by using passivation liquid, so that the oxidation resistance of the copper strip is improved.
Copper strip thin shear: and cutting the copper strip after the finished thin strip is cleaned according to the width of a customer, and producing the finished copper strip meeting the requirements of the customer.
Example 2
The difference from example 1 is that the angle between the axial direction of the first gas injection hole and the running direction of the copper strip 1 is 1 to 3 °.
Example 3
The difference from example 1 is that the minimum vertical distance between the curved steel pipe 7 and the surface of the copper strip 1 is 12mm.
Example 4
The difference from embodiment 1 is that the horizontal distance between the first air-blowing device 3 and the second air-blowing device 4 is 22cm.
Example 5
The difference from embodiment 1 is that 28 first gas injection holes are provided on the bent steel pipe 7, and the interval between adjacent first gas injection holes is 8mm.
Example 6
The difference from example 1 is that the vertical distance between the straight steel tube 10 and the surface of the copper strip 1 is 10mm.
Example 7
The difference from embodiment 1 is that 20 second gas injection holes are provided on the straight steel pipe 10, and the interval between adjacent second gas injection holes is 14mm.
Example 8
The difference from example 1 is that the horizontal distance between the first air blowing device 3 and the 3M wringer roller 2 is 32cm.
Comparative example 1
The difference from example 1 is that in the first air blowing device 3, a straight steel pipe (the angle between the axial direction of the first air injection hole and the running direction of the copper strip 1 is 0 °) is used instead of the curved steel pipe 7.
Comparative example 2
The difference from embodiment 1 is that there is no second air-blowing device 4.
The final copper tape surfaces obtained in examples 1 to 8, comparative examples 1 and 2 were tested for residual oil amount at room temperature using a dyne pen No. 30, the residual oil amount on the copper tape surface was determined based on the time when the copper tape slightly contracted, and the test results are shown in table 1.
TABLE 1
The final copper strips obtained in examples 1 to 8 and comparative examples 1 and 2 were welded for radio frequency cable production, and it was found that the copper strips in examples 1 to 8 did not exhibit smoke generation, and did not cause cracking during subsequent embossing, and finally acceptable radio frequency cables were obtained. The copper strips of comparative examples 1 and 2 exhibited severe smoke and cracking during subsequent embossing, and were not amenable to rf cable production.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the 3M squeezing roller has porous characteristics and good consistency, so that the 3M squeezing roller and the whole copper strip are always kept in close contact, a uniform squeezing effect can be generated, and the optimal squeezing performance is obtained; meanwhile, the 3M squeezing roller has a higher friction coefficient, so that an auxiliary motor is not needed, and a faster processing speed of a production line can be obtained, so that the 3M roller squeezing can generate a uniform squeezing effect, a large amount of residual oil attached to the surface of the copper strip is squeezed, and a large amount of residual oil on the surface of the copper strip is removed. Because the structure of the first air jet hole can jet high-pressure air flow, the first air blowing equipment with the first air jet hole is used for blowing the surface of the copper strip for the first time, so that the binding force between the surface of the copper strip and rolling oil is reduced; the structure of the second air jet hole can jet low-pressure air flow, so that rolling oil dispersed on the surface of the copper strip after the first blowing is blown by the second air jet device with the second air jet hole, residual oil on the surface of the copper strip is greatly reduced through the cooperative cooperation of the first blowing and the second blowing, the residual rolling oil with strong binding force on the surface of the copper strip is saponified and degreased by degreasing liquid through the thick washing process of the copper strip, the degreasing cleaning is carried out again by using a 3M wringing roller, and the copper strip enters a finished product hood-type annealing process. After the copper strip is annealed by a finished product, the residual oil on the surface of the copper strip is thoroughly removed by a liquid degreasing liquid through a similar compatibility principle, the copper strip is squeezed by a 3M squeezing roller, oxides generated on the surface of the copper strip in the annealing process are removed by acid washing sequentially, the copper strip is squeezed by a second 3M squeezing roller, finally the copper strip is prevented from being oxidized by a passivation liquid, and the residual liquid on the surface of the copper strip is squeezed by the third 3M squeezing roller, so that the phenomenon that the copper strip is smoke in the production and welding process of the radio frequency cable is avoided, and a qualified radio frequency cable is obtained.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (13)
1. The degreasing device in the copper strip finish rolling process comprises a lower base, and is characterized in that a 3M squeezing roller (2), a first air blowing device (3) and a second air blowing device (4) are sequentially arranged along the running direction of the copper strip (1),
the 3M squeezing roller (2) is provided with an upper roller and a lower roller which are fixed on the lower base, a gap for the copper strip (1) to pass through is arranged between the upper roller and the lower roller, and the 3M squeezing roller (2) is used for squeezing out rolling oil on the copper strip (1);
the first air blowing device (3) is used for carrying out first blowing on rolling oil on the surface of the copper strip (1) after the 3M squeezing roller (2) is squeezed, the first air blowing device (3) comprises a first fixed plate (5), a first movable plate (6) and a bent steel tube (7), the first fixed plate (5) is fixed on the lower base, the first movable plate (6) is opposite to the first fixed plate (5), the distance between the first movable plate (6) and the first fixed plate (5) is adjustable, two ends of the bent steel tube (7) are fixed on the side, facing away from the 3M squeezing roller (2), of the first movable plate (6), a plurality of first air spraying holes facing the copper strip (1) are arranged at intervals in the bent steel tube (7), and the first air spraying holes are axially along the first air spraying holes, and the diameters of the first air spraying holes are gradually reduced from inside to outside;
the second air blowing equipment (4) is used for carrying out the second to the rolling oil on copper strips (1) surface after the first blowing, second air blowing equipment (4) are including second fixed plate (8), second movable plate (9) and straight steel pipe (10), second fixed plate (8) are fixed in on the lower base, second movable plate (9) with second fixed plate (8) set up relatively, just second movable plate (9) for distance between second fixed plate (8) is adjustable, the both ends of straight steel pipe (10) are fixed in on the side of second movable plate (9) dorsad 3M squeeze roll (2), straight steel pipe (10) interval is provided with a plurality of orientation second fumaroles of copper strips (1), second fumaroles are followed second fumaroles are axial, and its aperture is from inside to outside increases gradually.
2. The oil removal device according to claim 1, characterized in that the angle between the axial direction of the first gas injection hole and the running direction of the copper strip (1) is 2-6 degrees, and the angle gradually increases from the middle to the two ends of the bent steel tube (7).
3. The oil removal apparatus as claimed in claim 1 or 2, wherein the aperture of the first gas injection hole gradually decreases from inside to outside from phi 5mm to phi 6mm to phi 3mm to phi 4mm.
4. The degreasing device according to claim 1 or 2, characterized in that the minimum vertical distance between the curved steel tube (7) and the surface of the copper strip (1) is 8-10 mm.
5. The oil removal device according to claim 1 or 2, characterized in that the horizontal distance between the first air-blowing means (3) and the second air-blowing means (4) is 19-20 cm.
6. The oil removal device according to claim 1 or 2, characterized in that 28-30 first air injection holes are arranged on the bent steel tube (7), and the interval between adjacent first air injection holes is 8-9 mm.
7. The degreasing device according to claim 1 or 2, characterized in that the vertical distance between the straight steel tube (10) and the surface of the copper strip (1) is 6-8 mm.
8. The oil removal device according to claim 1 or 2, wherein 20-22 second air injection holes are formed in the straight steel pipe (10), and the interval between adjacent second air injection holes is 14-15 mm.
9. The oil removal apparatus as claimed in claim 1 or 2, wherein the aperture of the second gas injection hole gradually increases from inside to outside from phi 7mm to phi 8mm to phi 9mm to phi 10mm.
10. The degreasing device according to claim 1 or 2, characterized in that the horizontal distance between the first air blowing means (3) and the 3M wringing roller (2) is 29 cm-30 cm.
11. The oil removal apparatus as claimed in claim 1 or 2, wherein the axial cross-sections of the first gas injection holes and the second gas injection holes are trapezoidal, and the radial cross-sections of the first gas injection holes and the second gas injection holes are circular.
12. The oil removal device according to claim 1 or 2, characterized in that both ends of the first moving plate (6) and the first fixed plate (5), and both ends of the second moving plate (9) and the second fixed plate (8) are each independently fixed by a telescopic member, which is a telescopic bolt.
13. The degreasing device according to claim 1 or 2, further comprising a gas heating means connected to the straight steel pipe (10) for providing a flow of hot gas to the straight steel pipe (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320839532.9U CN219944144U (en) | 2023-04-14 | 2023-04-14 | Deoiling device in copper strip finish rolling process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320839532.9U CN219944144U (en) | 2023-04-14 | 2023-04-14 | Deoiling device in copper strip finish rolling process |
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| CN219944144U true CN219944144U (en) | 2023-11-03 |
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