Treatment process for improving roller mark defect of corrosion-resistant stainless steel belt

Abstract

The invention discloses a treatment process for improving roller mark defects of a corrosion-resistant stainless steel strip. The treatment process comprises the following specific steps: S1, cleaning and checking a roller surface; roller surfaces are checked before roller replacement or rolling is started; s2, online cleaning of the roller surface: 1) scraping the roller surface by a scraping mechanism in the cleaning mechanism; (2) a slag collecting mechanism in the cleaning mechanism collects oxidizing slag; s3, deep cleaning of the roller surface is conducted, specifically, shutdown cleaning is conducted when the rolling amount of each shift reaches 50-60 t; the method comprises the following steps: (1) detaching a roller, and then soaking with a neutral cleaning agent to dissolve stubborn oxides; (2) checking the damage condition of the roller surface, and then repairing; s4, surface defect inspection of the stainless steel strip; the method comprises the steps of (1) installing a detection instrument for detecting the surface defects of the steel strip at the outlet end of a rolling mill unit to detect the surface quality of the steel strip, (2) dynamically adjusting the process, and (S5) treating and remediating the surface defects of the steel strip.

Description

Technical Field

[0001] The invention belongs to the technical field of stainless steel hot rolling, and in particular relates to a treatment process for improving roller mark defects of corrosion-resistant stainless steel strips. Background Art

[0002] During the stainless steel rolling process, attention should be paid to the surface quality of the steel strip. The most common roller mark on the steel strip surface is a common surface defect. This defect will be more obvious after the subsequent pickling treatment, but this defect occurs during the rolling process. The root cause is the adhesion of impurities such as oxide scale on the surface of the roller. When the rolled strip is separated from the roller, part of the surface metal or oxide scale is torn off and remains on the roller surface to form "adhesion points". During subsequent rolling, it is pressed into the surface of the steel strip to form periodic roller marks. There are two commonly used methods to deal with this defect. One is to actively scrape off the oxide scale on the roller surface, and the other is to spray lubricant on the roller surface to reduce the adhesion rate. Furthermore, the parameters of the rolling process can be adjusted to reduce the control rolling temperature while ensuring the rolling quality, thereby reducing the generation of oxide scale.

[0003] After searching, the prior art publication number CN119327874A is a hot rolling control method for improving the roller mark defects on the surface of 443 ultra-pure stainless steel, which reduces the frequency of roller mark defects by controlling the rolling process; the publication number CN116586440 A is a control method for eliminating the roller mark defects of 300 series stainless steel, which also reduces the frequency of roller mark by adjusting the temperature difference between the soaking section and the second heating section of the heating furnace; further, the reverse prior art publication number CN212703689U is a stainless steel flat rolling mill roller surface cleaning device, which uses a wiping head to wipe the roller surface, which is a typical "point-to-surface" method, which is manifested in that after the roller rotates one circle, the track of the wiping head wiping is only a line, which obviously causes the disadvantage of incomplete roller surface treatment.

[0004] In response to the above-mentioned drawbacks, the applicant provides a cleaning solution for roller surface treatment and a matching treatment process. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a treatment process for improving the roller mark defects of corrosion-resistant stainless steel strips, which can cooperate with a cleaning mechanism to remove the oxide scale on the surface of the roller and reduce the frequency of roller mark defects on the surface of the steel strip.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A treatment process for improving roller mark defects of corrosion-resistant stainless steel strips, the specific steps of which are as follows:

[0008] S1. Roller surface cleaning and inspection: Clean the roller surface before changing the roller or starting the rolling mill, then spray graphite nano-lubricant on the roller surface to form an isolation film; during the rolling process, the cleaning mechanism cleans the oxide slag adhered to the roller surface, and the cleaning mechanism performs cleaning work every 400-600m of rolling;

[0009] S2. Online cleaning of the roller surface: The scraping mechanism and slag collecting mechanism in the cleaning mechanism clean and collect the slag impurities adhering to the roller surface:

[0010] 1) The scraping mechanism in the cleaning mechanism scrapes the roller surface: the electric push rod pushes the first scraper to fit the roller surface to scrape off the slag impurities. The electric push rod is ejected and reset 2-3 times every 200-250m of rolled steel strip to complete a working cycle.

[0011] 2) The slag collecting mechanism in the cleaning mechanism collects the oxidized slag: the slag collecting bucket receives the scraped oxidized slag and then slides it into the slag collecting box; during this process, the motor cooperates with the second adjustment shaft to drive the slag collecting bucket to vibrate, accelerating the transfer of the oxidized slag; the motor speed is 75-80r / min;

[0012] S3. Deep cleaning of the roll surface: When the rolling volume reaches 50-60t per shift, the roll surface will be shut down for cleaning.

[0013] 1) Disassemble the roller and soak it in a neutral detergent to dissolve the stubborn oxides:

[0014] 2) Check the damage of the roller surface and then repair it, such as repairing the pits to avoid the retention of oxides;

[0015] S4. Surface defect inspection of stainless steel strip:

[0016] 1) Install a detection instrument for detecting surface defects of steel strips at the exit of the rolling mill, and use the existing machine vision detection or laser scanning detection method to detect the surface quality of the steel strips.

[0017] 2) Dynamic process adjustment: After the inspection data shows that the surface defects of the steel strip have increased significantly, the dynamic parameters of the above steps are adjusted and the cleaning frequency is increased accordingly;

[0018] S5. Remediation of steel strip surface defects: Polish the surface defects of the steel strip.

[0019] The cleaning mechanism in step S2 is fixed on the frame and located on one side of the rolling roller. The cleaning mechanism includes a mounting plate, a scraping mechanism, and a slag collecting mechanism. Connecting plates are provided at both ends of the mounting plate. One end of the connecting plate is fixedly connected to the frame. The scraping mechanism and the slag collecting mechanism are arranged on the mounting plate. The scraping mechanism is arranged above the slag collecting mechanism. The oxidized slag on the rolling roller is scraped off by the scraping mechanism, and then the scraped and fallen oxidized slag is collected by the slag collecting mechanism.

[0020] The scraping mechanism includes a support plate, a first scraper, a second scraper, an adjusting arm, a tension spring, a push plate, an electric push rod, and a first support rod; the support plate is fixedly connected to the mounting plate, and the first scraper and the push plate are provided with support guide rails, and the support plate is provided with support guide grooves and fits the support guide rails, and the support guide rails on the first scraper and the push plate are provided in the support guide grooves and can slide; the first scraper is provided with a first curved surface and a second curved surface, and the first curved surface fits the rolling roller; a first guide shaft is also provided on one side of the first scraper, and the first guide shaft is slidably connected to the push plate, and a first limit plate is provided at one end of the first guide shaft, and a first spring is also provided on the first guide shaft; the first spring contacts the first scraper and the push plate.

[0021] The first scraper is also provided with a fixed cover plate, one end of which overlaps the surface of the push plate. The cover plate is provided on the upper and lower surfaces of the first scraper to cover the upper and lower sides of the first spring to provide preliminary protection for the first spring.

[0022] The first support rod is provided with a pair and fixedly connected to the mounting plate, the adjusting arm is provided with a first rotating shaft, the first rotating shaft is rotatably connected to the first support rod, the two ends of the tension spring are respectively connected to one end of the adjusting arm and one end of the support plate, the other end of the adjusting arm is fixedly connected to the second scraper, the second scraper is provided under the first scraper, and the tension of the tension spring makes one end of the adjusting arm push the second scraper to fit the lower surface of the first scraper; the electric push rod is fixed on the mounting seat on one side of the mounting plate, and the top shaft of the electric push rod passes through the mounting plate and is fixedly connected to the push plate.

[0023] A first protective shell is provided on the outside of the electric push rod for sealing protection.

[0024] The slag collecting mechanism includes a slag collecting bucket, a bracket, a control shaft, a second spring, a slag collecting box, and a first fixed plate; the first fixed plate is provided with a pair and is respectively fixed at both ends of the mounting plate, and a second fixed plate fixedly connected to the mounting plate is provided below the first fixed plate; screws are provided at both ends of the bracket, the screws pass through the through holes provided on the second fixed plate and are fixed and limited by nuts, and the height of the bracket can be adjusted, one end of the bracket is provided with a limit block, and a slide rail is provided inside the bracket; support grooves are provided on both sides of the slag collecting box and are slidably connected to the slide rail on the bracket, and one end of the slag collecting box touches the limit block; the control shaft is plugged into the first fixed plate and the second fixed plate, and one end of the control shaft is provided with a first adjusting shaft. One end of the control shaft is provided with a fixed second limit plate, the second spring is sleeved on the control shaft, and the second spring touches the second limit plate and the second fixed plate; one end of the slag collecting bucket is provided with a hinged second support rod, and the other end of the second support rod is fixedly connected to the mounting plate, and one end of the slag collecting bucket is provided with a fixed frame, and the first adjusting shaft is provided in the through slot in the fixed frame; the slag collecting bucket is arranged obliquely to facilitate the sequential sliding of the oxidized slag impurities into the slag collecting box below.

[0025] A handle is provided on one side of the slag collecting box for easy pulling and replacement.

[0026] Furthermore, the end of the control shaft is provided with a fixedly connected connecting shaft, a second adjusting shaft is provided obliquely above the connecting shaft, both ends of the second adjusting shaft are provided with rotatably connected support arms, the support arms are fixedly connected to the mounting plate, and the second adjusting shaft is provided with a lever and a sprocket; one side of the second adjusting shaft is provided with a motor fixed to the mounting plate through a mounting seat, and a sprocket is provided at the end of the motor shaft and connected to the sprocket on the second adjusting shaft through a chain.

[0027] A second protective shell is provided on the outside of the motor for protection.

[0028] A chain box is provided on the outside of the sprocket and the chain for sealing protection, and the chain box is fixedly connected to the mounting plate.

[0029] In this technical solution, rolling rollers are arranged on the frame, and transmission frames are arranged at both ends of the frame, and the steel billets are transmitted on the transmission frames; during the process of scraping the oxidized slag by the scraping mechanism, the electric push rod pushes the push plate and the first scraper to slide along the support guide rail, so that the first arc surface fits the roller surface of the rolling roller, and the scraped oxidized slag falls onto the slag collecting bucket, and then the oxidized slag enters the slag collecting box along the inclined slag collecting bucket, and the slag collecting box can be slid out of the bracket for replacement or cleaning.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] 1) The first scraper provided in the scraping mechanism has a first curved surface and a second curved surface. The first curved surface fits the roller surface. The first curved surface increases the contact area between the first scraper and the roller, thereby increasing the friction between the two, so that the first scraper can fit tightly on the roller. Therefore, when scraping off the slag, it will not easily pass over the stubbornly adhered slag.

[0032] The first scraper and the push plate are movably connected via the first guide shaft and the first spring, so that the first scraper can adaptively fit the roller surface, thereby avoiding the problem that the electric push rod cannot accurately push the first scraper to fit the roller surface after long-term use;

[0033] 2) The tension of the tension spring causes the adjustment arm to push the second scraper to always adhere to and adapt to the second curved surface of the first scraper during the sliding process of the first scraper, thereby scraping off the adhered oxide slag on the surface of the second scraper to the greatest extent;

[0034] 3) In the slag collecting mechanism, the motor can drive the second adjusting shaft to rotate so that the lever can push the connecting shaft and the control shaft to move downward. When the lever passes over the connecting shaft, the second spring pushes the second limit plate and the control shaft to quickly rise and reset and hit the first fixed plate to generate vibration, which can then drive the slag collecting bucket to vibrate through the first adjusting shaft, thereby accelerating the transfer of oxidized slag from the slag collecting bucket to the slag collecting box and avoiding accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Attachment Figure 1This is a schematic diagram of the application of a cleaning mechanism in a treatment process for improving roller mark defects of a corrosion-resistant stainless steel strip according to the present invention;

[0036] Attachment Figure 2 This is a schematic diagram of the structure of the cleaning mechanism Figure 1 ;

[0037] Attachment Figure 3 This is a schematic diagram of the structure of the cleaning mechanism Figure 2 ;

[0038] Attachment Figure 4 This is a schematic diagram of the structure of the cleaning mechanism Figure 3 ;

[0039] Attachment Figure 5 This is a schematic diagram of the structure of the cleaning mechanism Figure 4 ;

[0040] Attachment Figure 6 This is the structural diagram of the scraping mechanism Figure 1 ;

[0041] Attachment Figure 7 This is the structural diagram of the scraping mechanism Figure 2 ;

[0042] Attachment Figure 8 It is a structural diagram of the bracket and the slag collecting box;

[0043] Attachment Figure 9 is a schematic diagram of the structure of the bracket;

[0044] Attachment Figure 10 It is a structural diagram of the slag collecting box;

[0045] In the figure: 1. Mounting plate; 11. Connecting plate; 4. Cleaning mechanism; 5. Roller; 6. Steel billet; 7. Frame; 71. Transport frame; 2. Scraping mechanism; 21. Support plate; 22. First scraper; 221. First curved surface; 222. Second curved surface; 223. First guide shaft; 224. First spring; 225. First limit plate; 226. Cover plate; 23. Second scraper; 24. Adjusting arm; 241. First rotating shaft; 25. Tension spring; 26. Push plate; 27. Electric push rod; 271. First protective shell; 28. First support rod; 29. ​​Support rail;

[0046] 3. Slag collecting mechanism; 31. Slag collecting bucket; 311. Second support rod; 312. Fixed frame; 32. Bracket; 321. Screw; 322. Limit block; 323. Slide rail; 33. Control shaft; 331. First adjusting shaft; 332. Second limit plate; 34. Second spring; 35. Connecting shaft; 36. Second adjusting shaft; 361. Push rod; 362. Support arm; 37. Motor; 371. Second protective shell; 372. Chain box; 38. Slag collecting box; 381. Support groove; 382. Handle; 39. First fixed plate; 391. Second fixed plate. DETAILED DESCRIPTION

[0047] To facilitate understanding by those skilled in the art, Figure 1-10 , the technical solution of the present invention is further described in detail.

[0048] Example 1:

[0049] A treatment process for improving roller mark defects of corrosion-resistant stainless steel strips, the specific steps of which are as follows:

[0050] S1. Roller surface cleaning and inspection: Clean the roller surface before changing the roller or starting the rolling mill, then spray graphite nano-lubricant on the roller surface to form an isolation film; during the rolling process, the cleaning mechanism is used to clean the oxide slag adhered to the roller surface, and the cleaning mechanism is used to clean the roller surface every 600m of rolling;

[0051] S2. Online cleaning of the roll surface: The scraping mechanism and slag collecting mechanism in the cleaning mechanism clean and collect the slag impurities adhering to the roll surface;

[0052] 1) The scraping mechanism in the cleaning mechanism scrapes the roller surface: the electric push rod pushes the first scraper to fit the roller surface to scrape off the slag impurities. The electric push rod is ejected and reset three times every 250m of rolled steel strip to complete a working cycle.

[0053] 2) The slag collecting mechanism in the cleaning mechanism collects the oxidized slag: the slag collecting bucket receives the scraped oxidized slag and then slides it into the slag collecting box. During this process, the motor cooperates with the second adjustment shaft to drive the slag collecting bucket to vibrate, accelerating the transfer of the oxidized slag. The motor speed is 75r / min.

[0054] S3. Deep cleaning of the roll surface: When the rolling volume reaches 50t per shift, the roll surface will be shut down for cleaning.

[0055] 1) Disassemble the roller and soak it in a neutral detergent to dissolve the stubborn oxides:

[0056] 2) Check the damage of the roller surface and then repair it, such as repairing the pits to avoid the retention of oxides;

[0057] S4. Surface defect inspection of stainless steel strip:

[0058] 1) Install a detection instrument for detecting surface defects of steel strips at the exit of the rolling mill, and use the existing machine vision detection or laser scanning detection method to detect the surface quality of the steel strips.

[0059] 2) Dynamic process adjustment: After the inspection data shows that the surface defects of the steel strip have increased significantly, the dynamic parameters of the above steps are adjusted and the cleaning frequency is increased accordingly;

[0060] S5. Remediation of steel strip surface defects: Polish the surface defects of the steel strip.

[0061] The cleaning mechanism 4 in step S2 is fixed on the frame 7 and is located on one side of the rolling roller. The cleaning mechanism 4 includes a mounting plate 1, a scraping mechanism 2, and a slag collecting mechanism 3. Connecting plates 11 are provided at both ends of the mounting plate 1. One end of the connecting plate 11 is fixedly connected to the frame 7. The scraping mechanism 2 and the slag collecting mechanism 3 are arranged on the mounting plate 1. The scraping mechanism 2 is arranged above the slag collecting mechanism 3. The scraping mechanism 2 is used to scrape the oxidized slag on the rolling roller 5, and then the scraped and fallen oxidized slag is collected by the slag collecting mechanism 3.

[0062] The scraping mechanism 2 includes a support plate 21, a first scraper 22, a second scraper 23, an adjusting arm 24, a tension spring 25, a push plate 26, an electric push rod 27, and a first support rod 28; the support plate 21 is fixedly connected to the mounting plate 1, and a support guide rail 29 is provided on the first scraper 22 and the push plate 26. The support plate 21 is provided with a support guide groove and fits into the support guide rail 29, and the support guide rails 29 on the first scraper 22 and the push plate 26 are arranged in the support guide groove and can slide; the first scraper 22 is provided with a first curved surface 221 and a second curved surface 222, and the first curved surface 221 fits the rolling roller 5; a first guide shaft 223 is also provided on one side of the first scraper 22, and the first guide shaft 223 is slidably connected to the push plate 26, and a first limit plate 225 is provided at one end of the first guide shaft 223, and a first spring 224 is also provided on the first guide shaft 223; the first spring 224 contacts the first scraper 22 and the push plate 26.

[0063] The first scraper 22 is also provided with a fixed cover plate 226, one end of which overlaps the surface of the push plate 26. The cover plate 226 is provided on the upper and lower surfaces of the first scraper 22 to cover the upper and lower sides of the first spring 224 to provide preliminary protection for the first spring 224.

[0064] A pair of first support rods 28 are fixedly connected to the mounting plate 1. The adjustment arm 24 is provided with a first rotating shaft 241. The first rotating shaft 241 is rotatably connected to the first support rod 28. The two ends of the tension spring 25 are respectively connected to one end of the adjustment arm 24 and one end of the support plate 21. The other end of the adjustment arm 24 is fixedly connected to the second scraper 23. The second scraper 23 is located below the first scraper 22. The tension of the tension spring 25 causes one end of the adjustment arm 24 to push the second scraper 23 against the lower surface of the first scraper 22. The electric push rod 27 is fixed to the mounting seat on one side of the mounting plate 1. The top shaft of the electric push rod 27 passes through the mounting plate 1 and is fixedly connected to the push plate 26.

[0065] A first protective shell 271 is provided on the outer side of the electric push rod 27 for sealing protection.

[0066] The push plate 26 is pushed and pulled by the electric push rod 27 to slide along the support guide rail 29, thereby driving the first scraper 22 to slide along the support guide rail 29. During the pulling back process of the electric push rod 27, the second scraper 23 will slide along the lower surface of the first scraper 22, thereby scraping off the adhered oxide slag impurities and scraping off the impurities at the second curved surface 222. At the same time, the tension spring 25 can ensure that the second scraper 23 always pushes against the lower surface of the first scraper 22 to avoid scraping omissions.

[0067] The slag collecting mechanism 3 includes a slag collecting bucket 31, a bracket 32, a control shaft 33, a second spring 34, a slag collecting box 38, and a first fixing plate 39; the first fixing plate 39 is provided with a pair and is respectively fixed at both ends of the mounting plate 1, and a second fixing plate 391 fixedly connected to the mounting plate 1 is provided below the first fixing plate 39; screws 321 are provided at both ends of the bracket 32, and the screws 321 pass through the through holes provided on the second fixing plate 391 and are fixed and limited by nuts, and can adjust the height of the bracket 32, a limit block 322 is provided at one end of the bracket 32, and a slide rail 323 is provided inside the bracket 32; support grooves 381 are provided on both sides of the slag collecting box 38 and are slidably connected to the slide rails 323 on the bracket 32, and the slag collecting box 38 is pushed up at one end Touch the limit block 322; the control shaft 33 is inserted into the first fixed plate 39 and the second fixed plate 391, and a first adjusting shaft 331 is provided at one end of the control shaft 33, and a fixed second limit plate 332 is provided at one end of the control shaft 33, and the second spring 34 is sleeved on the control shaft 33, and the second spring 34 touches the second limit plate 332 and the second fixed plate 391; a second support rod 311 is hingedly provided at one end of the slag collecting bucket 31, and the other end of the second support rod 311 is fixedly connected to the mounting plate 1, and a fixed frame 312 is provided at one end of the slag collecting bucket 31, and the first adjusting shaft 331 is provided in a through groove in the fixed frame 312; the slag collecting bucket 31 is arranged obliquely to facilitate the sequential sliding of oxidized slag impurities into the slag collecting box 38 below.

[0068] A handle 382 is provided on one side of the slag collecting box 38 for easy pulling and replacement.

[0069] In this technical solution, a rolling roller 5 is arranged on the frame 7, and a transmission frame 71 is arranged at both ends of the frame 7, and the steel billet 6 is transmitted on the transmission frame 71; during the process of scraping the oxidized slag by the scraping mechanism 2, the electric push rod 27 pushes the push plate 26 and the first scraper 22 to slide along the support guide rail 29, so that the first curved surface 221 fits the roller surface of the rolling roller 5, and the scraped oxidized slag falls onto the slag collecting bucket 31, and then the oxidized slag enters the slag collecting box 38 along the oblique slag collecting bucket 31, and the slag collecting box 38 can be slid out of the bracket 32 ​​for replacement or cleaning.

[0070] During the resetting process of the electric push rod 27, the first scraper 22 is pulled back and the second scraper 23 is driven to slide relatively. The second scraper 23 scrapes off the oxidized slag adhered to the second curved surface 222 of the first scraper 22 and drops it into the slag collecting bucket 31. During this process, the tension spring 25 pulls the adjusting arm 24 to make the second scraper 23 always fit the first scraper 22; the electric push rod 27 completes the cleaning of the roller 5 by the top contact and reset action; wherein, the first scraper 22 and the push plate 26 are movably connected through the first spring 224 and the first guide shaft 223, so that the first scraper 22 can adaptively fit the roller surface of the roller 5.

[0071] Example 2: Based on Example 1;

[0072] The end of the control shaft 33 is provided with a fixedly connected connecting shaft 35, and a second adjusting shaft 36 is provided obliquely above the connecting shaft 35. Both ends of the second adjusting shaft 36 are provided with rotatably connected support arms 362, and the support arms 362 are fixedly connected to the mounting plate 1. A shift rod 361 and a sprocket are provided on the second adjusting shaft 36; one side of the second adjusting shaft 36 is provided with a motor 37 fixed to the mounting plate 1 through a mounting seat, and a sprocket is provided at the shaft end of the motor 37 and is connected to the sprocket on the second adjusting shaft 36 through a chain.

[0073] A second protective shell 371 is provided on the outside of the motor 37 for protection.

[0074] A chain box 372 is provided on the outside of the sprocket and the chain for sealing protection, and the chain box 372 is fixedly connected to the mounting plate 1.

[0075] When the slag box 38 collects slag, the motor 37 can drive the slag bucket 31 to vibrate, thereby accelerating the transfer of oxidized slag into the slag box 38; the motor 37 drives the second adjusting shaft 36 to rotate, thereby driving the lever 361 to press the connecting shaft 35 to slide down, thereby pressing the control shaft 33 and one end of the slag bucket 31 to move downward, and then when the lever 361 passes over the connecting shaft 35, the second spring 34 pushes the second limit plate 332 and the control shaft 33 to quickly reset and hit the first fixed plate 39 to generate vibration, so that the oxidized slag impurities on the slag bucket 31 slide into the slag box 38 to avoid accumulation in the slag bucket 31.

[0076] According to the standard of "GBT 4237-2015 Stainless Steel Hot-rolled Steel Plate and Steel Strip", stainless steel strips produced by three different shifts were produced and randomly inspected according to the implementation method of Example 1. One group was randomly inspected from each shift, and the surface quality was found to be good, and roller mark defects were greatly reduced. According to the implementation method of Example 2, stainless steel strips produced by three different shifts were produced and randomly inspected. One group was randomly inspected from each shift, and the surface quality was also good, and defects such as roller marks and scratches on the steel strip surface were greatly reduced.

[0077] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0078] In summary, the electronic or electrical components including but not limited to electric push rods, motors, etc. are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are conventional circuit connections or electrical connections in the prior art, and are not within the scope of protection of the present invention;

[0079] The above content is merely an example and explanation of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A treatment process for improving roller mark defects of corrosion-resistant stainless steel strip, characterized in that The specific steps are as follows: S1. Roller surface cleaning and inspection: Clean the roller surface before changing the roller or starting the rolling mill, then spray graphite nano-lubricant on the roller surface to form an isolation film; during the rolling process, the cleaning mechanism cleans the oxide slag adhered to the roller surface, and the cleaning mechanism performs cleaning work every 400-600m of rolling; S2. Online cleaning of the roll surface: The scraping mechanism and slag collecting mechanism in the cleaning mechanism clean and collect the slag impurities adhering to the roll surface; 1) The scraping mechanism in the cleaning mechanism scrapes the roller surface: the electric push rod pushes the first scraper to fit the roller surface to scrape off the slag impurities. The electric push rod is ejected and reset 2-3 times every 200-250m of rolled steel strip to complete a working cycle. 2) The slag collecting mechanism in the cleaning mechanism collects the oxidized slag: the slag collecting bucket receives the scraped oxidized slag and then slides it into the slag collecting box; during this process, the motor cooperates with the second adjustment shaft to drive the slag collecting bucket to vibrate, accelerating the transfer of the oxidized slag; the motor speed is 75-80r / min; S3. Deep cleaning of the roll surface: When the rolling volume reaches 50-60t per shift, the roll surface will be shut down for cleaning. 1) Disassemble the roller and soak it in a neutral detergent to dissolve the stubborn oxides: 2) Check the damage of the roller surface and then repair it, such as repairing the pits to avoid the retention of oxides; S4. Surface defect inspection of stainless steel strip: 1) Install a detection instrument for detecting surface defects of steel strips at the exit of the rolling mill, and use the existing machine vision detection or laser scanning detection method to detect the surface quality of the steel strips. 2) Dynamic process adjustment: After the inspection data shows that the surface defects of the steel strip have increased significantly, the dynamic parameters of the above steps are adjusted and the cleaning frequency is increased accordingly; S5. Remediation of steel strip surface defects: Polish the surface defects of the steel strip.

2. The process for improving the roller mark defect of corrosion-resistant stainless steel strip according to claim 1, characterized in that The cleaning mechanism in step S2 is fixed on the frame and located on one side of the rolling roller. The cleaning mechanism includes a mounting plate, a scraping mechanism, and a slag collecting mechanism. Connecting plates are provided at both ends of the mounting plate. One end of the connecting plate is fixedly connected to the frame. The scraping mechanism and the slag collecting mechanism are arranged on the mounting plate. The scraping mechanism is arranged above the slag collecting mechanism. The oxidized slag on the rolling roller is scraped off by the scraping mechanism, and then the scraped and fallen oxidized slag is collected by the slag collecting mechanism.

3. The process for improving the roller mark defect of corrosion-resistant stainless steel strip according to claim 2, characterized in that The scraping mechanism includes a support plate, a first scraper, a second scraper, an adjusting arm, a tension spring, a push plate, an electric push rod, and a first support rod; the support plate is fixedly connected to the mounting plate, and the first scraper and the push plate are provided with a support guide rail, the support plate is provided with a support guide groove and fits the support guide rail, the support guide rails on the first scraper and the push plate are arranged in the support guide groove and can slide; the first scraper is provided with a first curved surface and a second curved surface, and the first curved surface fits the roller; a first guide shaft is also provided on one side of the first scraper, the first guide shaft is slidably connected to the push plate, and a first limit plate is provided at one end of the first guide shaft. A first spring is also provided on the first guide shaft; the first spring contacts the first scraper and the push plate; The first scraper is also provided with a fixed cover plate, one end of which overlaps the surface of the push plate. The cover plate is provided on the upper and lower surfaces of the first scraper to cover the upper and lower sides of the first spring to provide preliminary protection for the first spring.

4. The process for improving the roller mark defect of corrosion-resistant stainless steel strip according to claim 3 is characterized in that The first support rod is provided with a pair and is fixedly connected to the mounting plate, the adjusting arm is provided with a first rotating shaft, the first rotating shaft is rotatably connected to the first support rod, the two ends of the tension spring are respectively connected to one end of the adjusting arm and one end of the support plate, the other end of the adjusting arm is fixedly connected to the second scraper, the second scraper is provided under the first scraper, and the tension of the tension spring causes one end of the adjusting arm to push the second scraper to fit the lower surface of the first scraper; the electric push rod is fixed to the mounting seat on one side of the mounting plate, and the top shaft of the electric push rod passes through the mounting plate and is fixedly connected to the push plate; A first protective shell is provided on the outside of the electric push rod for sealing protection.

5. The process for improving the roller mark defect of corrosion-resistant stainless steel strip according to claim 3, characterized in that The slag collecting mechanism comprises a slag collecting bucket, a bracket, a control shaft, a second spring, a slag collecting box, and a first fixing plate; the first fixing plate is provided with a pair and is respectively fixed at both ends of the mounting plate. A second fixing plate is fixedly connected to the mounting plate below the first fixing plate; a screw is provided at each end of the bracket, the screw passes through a through-hole provided on the second fixing plate and is fixed and limited by a nut, and the height of the bracket can be adjusted. One end of the bracket is provided with a limit block, and a slide rail is provided inside the bracket; support grooves are provided on both sides of the slag collecting box and are slidably connected to the slide rail on the bracket, and one end of the slag collecting box touches the limit block; the control shaft is inserted into the first fixing plate and the second fixing plate, and one end of the control shaft is provided with a first adjusting shaft. One end of the control shaft is provided with a fixed second limit plate, and the second spring is sleeved on the control shaft, and the second spring touches the second limit plate and the second fixing plate; one end of the slag collecting bucket is provided with a hinged second support rod, and the other end of the second support rod is fixedly connected to the mounting plate, and one end of the slag collecting bucket is provided with a fixing frame. The first adjusting shaft is provided in the through-slot in the fixing frame; the slag collecting bucket is arranged obliquely to facilitate the sequential sliding of oxidized slag impurities into the slag collecting box below. A handle is provided on one side of the slag collecting box for easy pulling and replacement.

6. The process for improving roller mark defects of corrosion-resistant stainless steel strip according to claim 5, characterized in that: The end of the control shaft is provided with a fixedly connected connecting shaft, and a second adjusting shaft is provided obliquely above the connecting shaft. Both ends of the second adjusting shaft are provided with rotatably connected support arms, and the support arms are fixedly connected to the mounting plate. A shift rod and a sprocket are provided on the second adjusting shaft; one side of the second adjusting shaft is provided with a motor fixed to the mounting plate through a mounting seat, and a sprocket is provided at the end of the motor shaft and connected to the sprocket on the second adjusting shaft through a chain.

7. The process for improving the roller mark defect of corrosion-resistant stainless steel strip according to claim 6, characterized in that A second protective shell is provided on the outside of the motor for protection.

8. The process for improving the roller mark defect of corrosion-resistant stainless steel strip according to claim 6, characterized in that A chain box is provided on the outside of the sprocket and the chain for sealing protection, and the chain box is fixedly connected to the mounting plate.

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