CN114226546B

CN114226546B - Production method of aluminum foil for ultra-high performance power battery

Info

Publication number: CN114226546B
Application number: CN202111499045.4A
Authority: CN
Inventors: 曾杰江; 董少林; 杜方越; 杨帅玲; 邢行; 王珏
Original assignee: Hangzhou Five Star Aluminium Co ltd
Current assignee: Hangzhou Five Star Aluminium Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2023-05-12
Anticipated expiration: 2041-12-09
Also published as: CN114226546A

Abstract

The invention discloses a production method of an aluminum foil for an ultra-high performance power battery, which comprises the following steps: s1, casting and rolling; s2, a plate and belt working procedure; s3, aluminum foil working procedure; the aluminum foil surface quality detection processing equipment comprises a frame, rollers are symmetrically and rotationally connected to the inner wall of the frame, a vertical plate is fixedly connected to the frame, a motor is fixedly connected to the side wall of the vertical plate, a rotating shaft is fixedly connected to the output end of the motor, a hollow block is fixedly connected to one end of the rotating shaft, and a push rod penetrates through the inner wall of the hollow block and is slidably connected with the inner wall of the hollow block. The invention is beneficial to the improvement of the stability of the product, the tensile strength is improved, the automatic cleaning of the surface of the aluminum foil is realized, the surface quality of the aluminum foil is automatically detected, the dust on the surface of the aluminum foil is not required to be manually erased, the special quality inspection of the surface quality of the aluminum foil is not required, the labor cost is reduced, and the automatic cleaning and detection of the surface of the aluminum foil are performed.

Description

Production method of aluminum foil for ultra-high performance power battery

Technical Field

The invention relates to the technical field of production and manufacturing of aluminum foils for power batteries, in particular to a production method of an aluminum foil for an ultra-high-performance power battery.

Background

Aluminum foil for battery: the aluminum foil product is mainly applied to the fields of mobile phone batteries, batteries for automobile storage batteries and the like. The product is different from the aluminum foil product with common use, and has high conductivity, high strength and good surface quality. We refer to aluminum foil for batteries in general, and in fact to aluminum foil for positive electrode materials of lithium ion batteries, to unmodified aluminum foil for lithium battery current collectors, as distinguished from aluminum foil for other uses on batteries.

The mechanical properties of the aluminum foil for the battery, which is required to be 1235 alloy in the aluminum foil for the lithium ion battery GB/T33143-2016, in the fully hardened state are respectively that the tensile strength is more than or equal to 150MPa, and the elongation is more than or equal to 1.5%. The current power battery customers have higher and higher tensile strength and extension performance of the aluminum foil of the battery, the common requirement is that the aluminum foil can be used after more than 195Mpa and the extension rate is more than 2%, the aluminum alloy can not meet the actual requirement when produced according to the prior aluminum foil standard, the performance is closer to the lower limit value of the aluminum foil standard, the aluminum foil is easier to break when in use and is not more resistant to the load of slurry, the actual production cost is higher, the technical defect of the aluminum foil of the battery is that the tensile strength of the aluminum foil for the battery cannot be improved to super-hard, meanwhile, dust is required to be manually erased on the surface of the aluminum foil in the aluminum foil production process, the quality of the aluminum foil surface is required to be manually checked, products with defects such as roller marks and surface stripes are avoided, labor force is wasted, and the production efficiency is reduced.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a production method of an aluminum foil for an ultra-high performance power battery.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the production method of the aluminum foil for the ultra-high performance power battery comprises the following steps:

s1, casting and rolling: controlling waste materials with the waste material proportion of 0-20% in a feeding component structure, and the balance of pure aluminum ingots; the furnace burden is controlled to be kept clean, the melt quality is good, and the hydrogen content is controlled: less than or equal to 0.12ml/100gAl, and tubular filtration is adopted to improve the purity of aluminum; the same plate difference of the plate shape is controlled to be between 0 and 0.03mm, the convexity is controlled to be between 0 and 0.035mm, and the plate shape is controlled to be parabolic, so that the defects of wedge-shaped plates, rib thickness (concave plates) and the like are avoided; the casting speed is controlled to be 750-1000mm/min, and the length of a casting area is 55-65mm.

S2, plate and strip working procedure: the quality of the plate shape is required to be controlled, after the working roll is replaced for the first time, the preheating roll is maintained for more than 10 minutes, the thermal convexity of the roll is improved, and the roll shape is stabilized; and according to the width of the product and the alloy variety, selecting a proper plate shape control curve to ensure the quality of the plate shape; ensuring that the plate shape control system is normal: each time the supporting roller is replaced, the normal states of the spraying system and the roller system are confirmed, and the abnormality is found and timely processed;

before feeding, cleaning dust on the surface of the aluminum coil by using clean rag, cleaning a guide roller of a rolling mill by using the clean rag for one time in each pass, and cleaning oil sludge and foreign matters on the surfaces of the entrance trolley and the walking beam trolley at regular intervals to keep the surfaces of the trolley clean; roll changing is carried out strictly according to a roll changing program; before the finished product is discharged, sampling is carried out to determine the state of a roller, whether the state meets the surface requirement of the product or not is judged, and the products with defects such as roller marks, surface stripes and the like are prevented from occurring in batches through checking the first-coil finished product; ensuring the normal rolling oil filtering system so as to ensure the quality of the rolling surface; cleaning the surface of the sleeve; when the priming ridge appears, cutting off to ensure that the priming quality does not form a sleeve mark or the priming ridge; before rolling, the end face condition is checked, and the protrusions on the end face are treated by using abrasive cloth or cotton cloth, so that the outer ring with dirty or poor surface is cut off or raked off, and no metal or nonmetal pressing is generated in the rolling process.

S3, aluminum foil working procedure: ensuring that the specification state of the woolen is 0.2-0.4mm in thickness, the alloy state is 1235-H18, and the aluminum foil reduction pass distribution of the ultra-high performance battery foil is realized: the thickness of the finished product is 0.015mm, and the reduction pass distribution is 0.26-0.12-0.06-0.032-0.019-0.015mm; the service condition of the battery foil finished product pass roller is that the thickness of the finished product is as follows: 0.015mm, roll number: 220-320, roll convexity: 60-100%o, roller roughness: 0.10-0.13 (Ra) μm.

The utility model provides an aluminum foil surface quality detects treatment facility still includes in the slab band process, which comprises a frame, frame inner wall symmetry rotation is connected with the roller, fixedly connected with riser in the frame, riser lateral wall fixedly connected with motor, the output fixedly connected with pivot of motor, the one end fixedly connected with hollow piece of pivot, hollow piece inner wall through sliding connection has the push rod, the one end fixedly connected with L template of hollow piece is kept away from to the push rod, through piezospring elastic connection between L template and the hollow piece, riser lateral wall symmetry fixedly connected with hard pole, two the common fixedly connected with horizon bar of hard pole, the horizon bar lateral wall sliding sleeve has the slider, slider roof fixedly connected with T shape pole, T shape pole lateral wall sliding sleeve has the ring piece, ring piece and L template rotate to be connected, ring piece and T shape pole pass through elastic connection, ring piece lateral wall fixedly connected with folded plate, bottom fixedly connected with bottom plate, be equipped with cleaning mechanism and detection mechanism in the bottom plate.

Preferably, the detection mechanism comprises a chute arranged on the inner wall of the bottom plate, the inner wall of the chute is fixedly connected with a conductive spring, one end of the conductive spring is fixedly connected with a rack, the inner wall of the chute is penetrated and rotationally connected with a first rod, the side wall of the first rod is fixedly connected with a first gear, the first gear is meshed with the rack and is connected with a circular plate, the inner wall of the circular plate is provided with a plurality of L-shaped grooves, a push rod is slidably connected in the L-shaped grooves, the inner wall of the L-shaped grooves is rotationally connected with a lever, one end of the lever, far away from the push rod, is fixedly connected with a conductive block, the inner wall of the L-shaped groove is fixedly connected with a conductive sheet, a buzzer is arranged on the vertical plate, and the conductive sheet and the conductive block are respectively electrically connected with the buzzer.

Preferably, the rollers are connected with an aluminum foil in a sliding manner, and the bottom end of the ejector rod and the upper surface of the aluminum foil are propped against each other to slide.

Preferably, the cleaning mechanism comprises a second rod which penetrates through and is rotatably connected to the inner wall of the sliding groove, a second gear is fixedly connected to the side wall of the second rod, the second gear is in meshed connection with the rack, and a cleaning disc is fixedly connected to the bottom end of the second rod.

Preferably, the bottom wall of the cleaning disc is fixedly connected with a plurality of bristles, and a plurality of sucking holes are formed in the bottom wall of the cleaning disc.

Preferably, the inner wall of the elastic air bag is fixedly connected with an air inlet pipe and an air outlet pipe in a penetrating mode, the air inlet pipe is fixedly communicated with the suction hole, one-way valves are arranged in the air inlet pipe and the air outlet pipe, and a pressure valve is arranged in the air inlet pipe.

The invention has the following advantages:

1. the control range of the main alloy elements is further narrowed under the original condition, so that the stability of the product is improved, the Cu content of the alloy elements is improved, the Fe-Si content is slightly reduced, the tissue uniformity is improved, the tissue of pure aluminum is more uniform, the tensile strength of the pure aluminum foil can be effectively improved by the strengthening phase formed by Cu and Al, crystal grains can be further crushed and thinned after multi-pass rolling, the tissue is more uniform, the plasticity is reduced, and the tensile strength is improved;

2. the number of rolling passes is increased, the processing rate of rough rolling passes is increased, the processing rate of finish rolling passes is reduced, and the strength of the material is greatly improved in the cold rolling process, so that the pass processing rate of finished product passes is properly reduced, the rolling speed is stabilized, and the oil-carrying defect on the surface is reduced;

3. realize cleaning the aluminium foil surface automatically to can automated detection aluminium foil surface quality, need not the manual work and erase the dust on aluminium foil surface, also need not the manual work and carry out special inspection quality control to aluminium foil surface quality, reduce the human cost, carry out automated cleaning and detection to the surface of aluminium foil.

Drawings

Fig. 1 is a schematic structural diagram of an aluminum foil surface quality detection processing device according to the present invention;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of the portion B of FIG. 1;

fig. 4 is a schematic diagram of connection relation among a push rod, an L-shaped plate and a circular ring block in the aluminum foil surface quality detection processing device.

In the figure: 1 frame, 2 vertical plates, 3 motors, 4 rotating shafts, 5 hollow blocks, 6 push rods, 7 piezoelectric springs, 8L plates, 9 circular blocks, 10T-shaped rods, 11 hard rods, 12 horizontal rods, 13 sliding blocks, 14 elastic air bags, 15 folded plates, 17 sliding grooves, 18 second rods, 19 cleaning discs, 20 bristles, 21 sucking holes, 22 second gears, 23 first rods, 24 first gears, 25 circular plates, 27L grooves, 28 ejector rods, 29 levers, 30 conductive blocks, 31 conductive sheets, 32 rollers, 33 aluminum foils, 34 bottom plates, 35 conductive springs and 36 racks.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.

Referring to fig. 1 to 4, a method for producing an aluminum foil for an ultra-high performance power battery includes the steps of:

before feeding, cleaning dust on the surface of the aluminum coil by using clean rag, cleaning a guide roller of a rolling mill by using the clean rag for one time in each pass, and cleaning oil sludge and foreign matters on the surfaces of the entrance trolley and the walking beam trolley at regular intervals to keep the surfaces of the trolley clean; roll changing is carried out strictly according to a roll changing program; before the finished product is discharged, sampling is carried out to determine the state of a roller, whether the state meets the surface requirement of the product or not is judged, and the products with defects such as roller marks, surface stripes and the like are prevented from occurring in batches through checking the first-coil finished product; ensuring the normal rolling oil filtering system so as to ensure the quality of the rolling surface; cleaning the surface of the sleeve; when the priming ridge appears, cutting off to ensure that the priming quality does not form a sleeve mark or the priming ridge; before rolling, the end face condition is checked, and the protrusions on the end face are treated by using abrasive cloth or cotton cloth, so that the outer ring with dirty or poor surface is cut off or raked off, and no metal or nonmetal pressing in the rolling process is ensured.

Still include an aluminium foil surface quality detection treatment facility in the slab band process of above-mentioned, which comprises a frame 1, frame 1 inner wall symmetry rotation is connected with roller 32, fixedly connected with riser 2 in the frame 1, riser 2 lateral wall fixedly connected with motor 3, motor 3's output fixedly connected with pivot 4, the one end fixedly connected with hollow piece 5 of pivot 4, hollow piece 5 inner wall runs through sliding connection has push rod 6, the one end fixedly connected with L template 8 of hollow piece 5 is kept away from to push rod 6, through piezoelectric spring 7 elastic connection between L template 8 and the hollow piece 5, piezoelectric spring 7's one end and L template 8 inner wall fixed connection, piezoelectric spring 7's the other end and hollow piece 5 lateral wall fixed connection, piezoelectric spring 7 cover is established at push rod 6 lateral wall, riser 2 lateral wall symmetry fixedly connected with hard rod 11, two hard rod 11 common fixedly connected with horizon bar 12, horizon bar 12 lateral wall sliding sleeve has slider 13, slider 13 fixedly connected with T shape pole 10, T shape pole 10 lateral wall sliding connection has ring piece 9, ring piece 9 and L8 rotate connection, ring piece 9 and L template 9 and T shape pole 10 are kept away from hollow piece 5's one end fixedly connected with L template 8, through piezoelectric spring 7 elastic connection between L template 8 and the elastic connection, piezoelectric spring 7 is equipped with air bag body and elastic connection's bottom plate 14, piezoelectric spring 14 is equipped with elastic connection's bottom plate 14, the top end is equipped with elastic connection air bag body is 14, air bag body is equipped with elastic connection, air bag body is equipped with air bag body and is equipped with air bag body, air bag body is equipped with an air bag body and is connected with an air bag body.

The detection mechanism comprises a chute 17 arranged on the inner wall of a bottom plate 34, a conductive spring 35 is fixedly connected to the inner wall of the chute 17, the conductive spring 35 is electrically connected with a piezoelectric spring 7, one end of the conductive spring 35 is fixedly connected with a rack 36, the inner wall of the chute 17 is connected with a first rod 23 in a penetrating and rotating manner, the side wall of the first rod 23 is fixedly connected with a first gear 24, the first gear 24 is connected with the rack 36 in a meshed manner, the bottom end of the first rod 23 is fixedly connected with a circular plate 25, a plurality of L-shaped grooves 27 are arranged on the inner wall of the circular plate 25, a push rod 28 is connected with the inner wall of the L-shaped groove 27 in a sliding manner, a lever 29 is connected to the inner wall of the L-shaped groove 27 in a rotating manner, one end of the lever 29 away from the push rod 28 is fixedly connected with a conductive block 30, the inner wall of the L-shaped groove 27 is fixedly connected with a conductive sheet 31, a buzzer is mounted on a riser 2, the conductive sheet 31 and the conductive block 30 is respectively electrically connected with the buzzer, the rotating portion of the lever 29 is arranged close to the push rod 28, the conductive sheet 31 can be symmetrically arranged on the upper side and the lower side of the conductive block 30, the top end of the push rod 28 and one end of the lever 29 away from the conductive block 30 are movably connected, the push rod 28 can further drive the push rod 29 to rotate by a certain angle, and the movement track of the lever 29 does not interfere.

The roller 32 is connected with an aluminum foil 33 in a sliding manner, the bottom end of the ejector rod 28 is propped against the upper surface of the aluminum foil 33, when the ejector rod 28 is contacted with the surface of the aluminum foil 33 with good surface quality, the lever 29 is in a horizontal state, and the conductive block 30 is not contacted with any conductive sheet 31.

The cleaning mechanism comprises a second rod 18 which penetrates through the inner wall of the chute 17 and is rotatably connected with the inner wall of the chute 17, a second gear 22 is fixedly connected to the side wall of the second rod 18, the second gear 22 is in meshed connection with a rack 36, a cleaning disc 19 is fixedly connected to the bottom end of the second rod 18, and the second rod 18 drives the cleaning disc 19 to rotate.

The bottom wall of the cleaning disc 19 is fixedly connected with a plurality of bristles 20, a plurality of sucking holes 21 are formed in the bottom wall of the cleaning disc 19, the bristles 20 and the upper surface of the aluminum foil 33 are propped against each other to slide, and then the upper surface of the aluminum foil 33 is cleaned.

The inner wall of the elastic air bag 14 is fixedly connected with an air inlet pipe and an air outlet pipe in a penetrating mode, the air inlet pipe is fixedly communicated with the suction hole 21, one-way valves are arranged in the air inlet pipe and the air outlet pipe, the one-way valves in the air inlet pipe only allow air in the suction hole 21 to enter the elastic air bag 14, the one-way valves in the air outlet pipe only allow air and dust in the elastic air bag 14 to be discharged to the outside for collecting treatment, a pressure valve is arranged in the air inlet pipe, after the elastic air bag 14 stretches, the internal pressure value of the elastic air bag reaches the critical value of the pressure relief valve, and the pressure relief valve is opened, so that the dust cleaned by the bristles 20 is continuously sucked out by the suction hole 21.

In the invention, the alloy component proportion of the casting and rolling process is adjusted, and the specific adjustment conditions are as follows:

and the pass distribution of aluminum foil rolling is readjusted:

original rolling pass distribution condition, 1235 battery foil original rolling pass distribution:

thickness of finished product is mm	Reduction pass distribution mm
		0.015	0.26-0.135-0.065-0.028-0.015

Improved post-reduction pass distribution, 1235 battery foil improved post-pass distribution:

compared with the rolling process before improvement, the rolling process after improvement has the greatest difference that the number of the arranged passes is increased by one pass, the first pass processing rate is increased, and the other passes processing rate is reduced.

Although the original control range of the alloy components meets the national standard requirements, the control range of the main components is wider, and the stability of the product is not beneficial to guarantee during mass production, so that the control range of the main alloy elements is considered to be further narrowed under the original condition, and the improvement of the stability of the product is facilitated.

The Cu content of the alloy element is improved, and the Fe-Si content is slightly reduced. The Cu can refine the pure aluminum structure, the crystal grains are distributed in an equiaxial manner, the size of the crystal grains is reduced, the uniformity of the structure is improved, the structure of the pure aluminum is more uniform, the tensile strength of the pure aluminum foil can be effectively improved by a strengthening phase formed by the Cu and the Al, the crystal grains can be further crushed and refined after multi-pass rolling, the structure is more uniform, the plasticity is reduced, and the tensile strength is improved.

The rolling reduction distribution of the aluminum foil procedure is adjusted, and the main method is as follows: the number of rolling passes is increased, the rough rolling pass processing rate is improved, and the finish rolling pass processing rate is reduced, and the main reasons are as follows: the strength of the material is greatly improved in the cold rolling process, and the pass processing rate of the finished product pass is properly reduced, so that the rolling speed is stabilized, and the oil-carrying defect on the surface is reduced.

In the plate and strip working procedure, the aluminum foil surface quality can be detected and treated by using aluminum foil surface quality detection treatment equipment, and the specific operation is as follows: the motor 3 is turned on, the output end of the motor 3 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the hollow block 5 to rotate, then the hollow block 5 drives the push rod 6 to move, because the sliding block 13 is connected to the side wall of the horizontal rod 12 in a sliding mode along the horizontal direction, the side wall of the L-shaped plate 8 is rotationally connected with the circular ring block 9, the circular ring block 9 is connected to the side wall of the T-shaped rod 10 in a sliding mode, then the push rod 6 drives the sliding block 13 to slide leftwards through the circular ring block 9 in a rotating process, then the circular ring block 9 slides upwards on the side wall of the T-shaped rod 10, then the circular ring block 9 drives the sliding block 13 to slide rightwards through the T-shaped rod 10, and finally the circular ring block 9 drives the bottom plate 34 to synchronously move through the folded plate 15 all the time in the process, so that a cleaning mechanism and a detection mechanism at the bottom of the bottom plate 34 process the upper surface of the aluminum foil 33.

In the process that the sliding block 13 slides from right to left, the piezoelectric spring 7 is extruded first, then the piezoelectric spring 7 is stretched, in the two sections of processes, the piezoelectric spring 7 is electrified to the conductive spring 35 by the piezoelectric effect, so that the conductive spring 35 is electrified to shrink, and then the rack 36 is driven to move smoothly in the sliding groove 17, the rack 36 drives the first rod 23 to rotate through the first gear 24, the rack 36 drives the second rod 18 to rotate through the second gear 22, and then the first rod 23 drives the circular plate 25 to rotate, so that a plurality of ejector rods 28 arranged in the circular plate 25 and the upper surface of the aluminum foil 33 are propped against to slide, in the process, the circular plate 25 can move leftwards and rotate, then the ejector rods 28 can slide and contact the upper surface of the aluminum foil 33 in a plurality of directions, if the upper surface of the aluminum foil 33 has defects such as roller marks and surface stripes, the bottom ends of the ejector rods 28 are contacted with the defects, displacement is generated, and then the lever 29 is driven to rotate by a certain angle, and the amplification function of the lever 29 is used for enabling the conductive block 30 and the conductive piece 31 at one end of the lever 29 to prop against the end of the ejector rod 28 to contact, and further, the buzzer is enabled to generate sound, and the quality is reminded to control the surface of the aluminum foil.

Meanwhile, the second rod 18 drives the cleaning disc 19 to rotate, the cleaning disc 19 can drive the plurality of bristles 20 to move leftwards horizontally and rotate by itself, so that the cleaning coverage range of the bristles 20 to the surface of the aluminum foil 33 is more comprehensive, meanwhile, the elastic air bag 14 is continuously elongated in the process of moving the cleaning disc 19 from top to bottom to right and leftwards, after the elastic air bag 14 is elongated, the pressure value inside the elastic air bag 14 reaches the critical value of the pressure relief valve, the pressure relief valve is opened, and the dust cleaned by the bristles 20 is continuously removed by the suction holes 21, so that the surface quality of the aluminum foil 33 is improved.

The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.

Claims

1. The production method of the aluminum foil for the ultra-high performance power battery is characterized by comprising the following steps of:

s1, casting and rolling: controlling waste materials with the waste material proportion of 0-20% in a feeding component structure, and the balance of pure aluminum ingots; the furnace burden is controlled to be kept clean, the melt quality is good, and the hydrogen content is controlled: less than or equal to 0.12ml/100gAl, and tubular filtration is adopted to improve the purity of aluminum; the same plate difference of the plate shape is controlled to be between 0 and 0.03mm, the convexity is controlled to be between 0 and 0.035mm, and the plate shape is controlled to be parabolic without the defects of wedge-shaped plates and rib thickness; controlling the casting speed at 750-1000mm/min and the length of the casting area at 55-65mm;

before feeding, cleaning dust on the surface of the aluminum coil by using clean rag, cleaning a guide roller of a rolling mill by using the clean rag for one time in each pass, and cleaning oil sludge and foreign matters on the surfaces of the entrance trolley and the walking beam trolley at regular intervals to keep the surfaces of the trolley clean; roll changing is carried out strictly according to a roll changing program; before the finished product is discharged, sampling is carried out to determine the state of a roller, whether the state meets the surface requirement of the product or not is judged, and the products with roller marks and surface stripe defects are prevented from occurring in batches by checking the first-coil finished product; ensuring the normal rolling oil filtering system so as to ensure the quality of the rolling surface; the surface of the sleeve is clean; when the priming ridge appears, cutting off to ensure that the priming quality does not form a sleeve mark or the priming ridge; checking the condition of the end face before rolling by a machine, treating the bulges on the end face by using abrasive cloth or cotton cloth, and cutting or raking the outer ring with dirty or poor surface to ensure that no metal or nonmetal is pressed in during rolling;

s3, aluminum foil working procedure: ensuring that the specification state of the woolen is 0.2-0.4mm in thickness, the alloy state is 1235-H18, and the aluminum foil reduction pass distribution of the ultra-high performance battery foil is realized: the thickness of the finished product is 0.015mm, and the reduction pass distribution is 0.26-0.12-0.06-0.032-0.019-0.015mm; the service condition of the battery foil finished product pass roller is that the thickness of the finished product is as follows: 0.015mm, roll number: 220-320, roll convexity: 60-100%o, roller roughness: 0.10-0.13 μm;

the aluminum foil surface quality detection treatment equipment comprises a frame (1), wherein rollers (32) are symmetrically and rotatably connected to the inner wall of the frame (1), a vertical plate (2) is fixedly connected to the frame (1), a motor (3) is fixedly connected to the side wall of the vertical plate (2), a rotating shaft (4) is fixedly connected to the output end of the motor (3), a hollow block (5) is fixedly connected to one end of the rotating shaft (4), a push rod (6) is fixedly connected to the inner wall of the hollow block (5) in a penetrating and sliding manner, an L-shaped plate (8) is fixedly connected to one end, far away from the hollow block (5), of the push rod (6), elastic connection is achieved between the L-shaped plate (8) and the hollow block (5) through a piezoelectric spring (7), hard rods (11) are symmetrically and fixedly connected to the side walls of the vertical plate (2), two hard rods (12) are fixedly connected with one another, a sliding block (13) is slidably connected to the side wall of the motor (3), a T-shaped rod (10) is fixedly connected to the top wall of the rotating shaft (13), one end of the push rod (6) is fixedly connected with a T-shaped rod (10), one end of the T-shaped rod (10) is fixedly connected to the side wall of the T-shaped rod (9) through an elastic ring (9) and the elastic ring (9) in a sleeved connection mode, the utility model provides a cleaning device for a car, includes ring piece (9) lateral wall fixedly connected with folded plate (15), folded plate (15) bottom fixedly connected with bottom plate (34), be equipped with cleaning mechanism and detection mechanism in bottom plate (34), detection mechanism is including spout (17) of seting up at bottom plate (34) inner wall, spout (17) inner wall fixedly connected with conductive spring (35), conductive spring (35) and piezoelectricity spring (7) electric connection, one end fixedly connected with rack (36) of conductive spring (35), spout (17) inner wall runs through and rotates and be connected with first pole (23), first pole (23) lateral wall fixedly connected with first gear (24), first gear (24) and rack (36) meshing are connected, first pole (23) bottom fixedly connected with plectrum (25), a plurality of L-shaped grooves (27) have been seted up to plectrum (25) inner wall, L-shaped groove (27) are connected with ejector pin (28), L-shaped groove (27) inner wall rotation is connected with lever (29), lever (29) are kept away from in lever (28) inner wall fixedly connected with rack (31), one end (31) is connected with riser (31), riser (31) is installed to one end, riser (2) are connected with riser (31) Conductive block (30) respectively with bee calling organ electric connection, roller (32) sliding connection has aluminium foil (33) jointly, the bottom of ejector pin (28) and aluminium foil (33) upper surface offset slip, clean mechanism including running through second pole (18) of rotating connection at spout (17) inner wall, the lateral wall fixedly connected with second gear (22) of second pole (18), second gear (22) and rack (36) meshing are connected, second pole (18) bottom fixed connection box has cleans dish (19), clean dish (19) diapire fixedly connected with a plurality of brush hair (20), clean dish (19) diapire and offered a plurality of suction holes (21), elastic air bag (14) inner wall run through fixedly connected with intake pipe and outlet duct, intake pipe and suction hole (21) fixed intercommunication, all be equipped with the check valve in intake pipe and the outlet duct, be equipped with the pressure valve in the intake pipe.