CN107900099A - A kind of milling method of stainless steel wide cut bright plate - Google Patents
A kind of milling method of stainless steel wide cut bright plate Download PDFInfo
- Publication number
- CN107900099A CN107900099A CN201711054643.4A CN201711054643A CN107900099A CN 107900099 A CN107900099 A CN 107900099A CN 201711054643 A CN201711054643 A CN 201711054643A CN 107900099 A CN107900099 A CN 107900099A
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- Prior art keywords
- roller
- oil
- roll
- passage
- wide cut
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
Abstract
The invention discloses a kind of milling method of stainless steel wide cut bright plate, it comprises the following steps：（1）" inspection "：All kinds of rollers and threading platform contacted before rolling to strip passage with steel plate carry out an inspection, polishing and cleaning；（2）" oil "：Select 3000 6000L/min of ROLLING OIL flow, 30 60 DEG C of oil temperature；（3）" using roller "：Progressively the work roll changing method of transition uses felt roll method to roughness with oil-scraping roller during rolling；（4）" unloading leader tape "：When to be rolled down to thickness be 0.25 1.5mm, section will not be rolled end to end in advance and laid down；（5）" speed limit ", passage limits mill speed with final pass before referring to finished product.It this method eliminates foreign matter press-in, wipe the surface defects such as scuffing, short scratch, horizontal roll marks, oil-scraping roller aberration, oil-scraping roller roll marks, be obviously improved wide cut bright plate and roll rear surface quality.
Description
Technical field
The present invention relates to a kind of milling method of stainless steel wide cut bright plate, especially the stainless steel light of width >=1500mm
Bright plate rolling, is specially a kind of method for lifting wide cut stainless steel bright plate rolled surface quality, it is cold to belong to stainless steel bright plate
Roll technical field.
Background technology
Stainless steel wide cut bright plate is Taiyuan Iron and Steel Co. focus development distinguishing products, is mainly used in high-end decoration industry, adds profit
Profit is high, and the market demand increases year by year, but client is high to the surface requirements of the product, to the quality control level of manufacturing enterprise
Bring challenges.Wide cut bright plate is rolled using Sendzimir mill, using multi-pass reversible rolling, granule surface contral difficulty
Greatly, easily there is aberration, scratch, laterally creases, all kinds of defects such as roll marks in surface in production process, and quality control on the surface is in shakiness
Determine state of a control, be difficult to effectively be lifted always.
The content of the invention
The present invention is intended to provide a kind of milling method of stainless steel wide cut bright plate, has live actual application value, energy
Quickly, wide cut bright plate rolled surface quality control level is effectively lifted.
Field assay finds that three conditions need to be possessed by rolling out the higher wide cut bright plate of surface quality：First, good
Appointed condition；Second, optimal rolling mill practice；3rd, the higher refinement of personnel is horizontal.
According to above quality control on the surface thinking, it is proposed that " two oil three of inspection are unloaded wide cut bright plate reversible rolling with roller four
The surface quality method for improving of five speed limit of leader tape ", this method cover equipment, technique, personnel operate three aspect, systematicness with
It is highly practical, comprise the following steps that：
The first step, " inspection ", refers to all kinds of rollers contacted before rolling to strip passage with steel plate（Oil-scraping roller, plate shape roller, strip lead to
Road, working roll）And point inspection, polishing and the cleaning of threading platform.
Rolling bright plate must carry out oil-scraping roller, template roller, guide roller, working roll, oil-blooming guide-board etc. an inspection；
Template roller, guide roller roll surface must not have bump, wipe scuffing.It was found that to polish immediately, it is along the circumferential direction past using oilstone
Strike-on is ground, and is forbidden to prolong and is radially polished, is wiped after polishing with clean rag；
Oil-scraping roller roll surface must not have iron filings, and discovery will immediately be cleared up, replaced immediately when more.Meanwhile oil-scraping roller rotates flexible, mark
Standard can stop naturally for promotion oil-scraping roller；
Using clean rag by guide roller to the platform wiped clean between oil-scraping roller, it is impossible to there is the fouls such as iron filings, greasy filth；
Key area using black cat washer to mill housing entrance, outlet（Oil-scraping roller roller supporting rack, pinch roller support
Frame）It is rinsed, ensures foreign, shredded paper, iron filings.
Second step, " oil ", refers to select 30-60 DEG C of ROLLING OIL flow 3000-6000L/min and oil temperature.
The flow of ROLLING OIL influences to roll rear surface of steel plate exquisiteness degree and finish with oil temperature, and experiment shows oil temperature in 30-
60 DEG C, it is preferable that flow 3000-6000L/min rolls rear surface of steel plate.
3rd step, " using roller ", refers to that progressively the work roll changing method of transition uses felt to roughness with oil-scraping roller during rolling
Roller method.
First passage replaces 0.1 ~ 0.35 μm of refiner roll using 0.2 ~ 0.5 μm new of corase grinding roller, pony-roughing pass；Ni steel
Passage uses 0.01 ~ 0.1 μm of M2 polishing rolls with final pass before bright board finished product；Cr steel bright plates, passage uses before finished product
0.01 ~ 0.2 μm of refiner roll, final pass use 0.01 ~ 0.1 μm of M2 polishing rolls.
The bright roller method used for rolling board of 1 wide cut of table
Pay attention to：Pony-roughing pass refers to the passage between passage before the first passage and finished product；
Two roller oil-scraping rollers replace copper roller using felt roll, felt roll 0.01 ~ 0.05bar/mm of pressure, and passage and final pass be only before finished product
Four-roller is not had to two roller oil-scraping rollers, other two rollers of passage, four-roller all use.
4th step, " unloading leader tape ", when to be rolled down to thickness be 0.25-1.5mm, will not roll section in advance and lay down end to end；
The operation of rolling be thickness be thinned, the process of extension, it is existing end to end during rolling not roll section and changeover portion, it is bright total to become
Shape amount is larger, and generally more than 70%, raw material and the thickness difference for rolling rear steel plate are bigger when the bigger coil of strip of finished product thickness rolls,
Section excision will not be rolled when being therefore rolled down to lower thickness end to end, is batched using sleeve and is rolled again, will be reduced in coiling process
Thickness transitions are poor.
5th step, " speed limit ", passage limits mill speed with final pass before referring to finished product.Passage speed limit before finished product
100 ~ 500m/min, 50 ~ 300m/min of final pass speed limit.
Beneficial effects of the present invention：
（1）Pass through all kinds of rollers contacted before rolling to strip passage with steel plate（Oil-scraping roller, plate shape roller, strip passage, work
Roller）And point inspection, polishing and the cleaning of threading platform, ensure that rolling equipment possesses good operating condition, foreign matter is greatly reduced
Press-in, wipe scuffing, the generation of load mould three classes surface defect, and three classes ratio of defects reduces by 80% or so；
（2）ROLLING OIL technological parameter ensure that with work roll changing method rolls rear steel plate glossiness；
（3）Oil-scraping roller is eliminated oil-scraping roller four-roller aberration print, is scraped using the cooperation of felt roll method and mill speed method for limiting speed
Two roller roll marks of oiling roller, two class defects of short scratch, three classes ratio of defects reduce by 80%；
（4）Unload leader tape method can eliminate laterally crease, two class surface defects of short scratch, horizontal pincher rate reduces by 90%, short
Scratch defect rate reduces by 70%.
After the method for the present invention, foreign matter press-in is eliminated, is wiped and is scratched, short scratch, horizontal roll marks, oil-scraping roller aberration, scrapes
The surface defects such as oiling roller roll marks, surface defect rate reduce by 80% or so, greatly improve the surface quality of wide cut bright plate.
Embodiment
The present invention is further illustrated below by embodiment, but is not limited to following embodiments.
Embodiment 1：
430 steel grade bright plates of wide cut mill milling a roll 0.3*1545mm specifications（Cr systems steel grade）, 2.3mm rolling 0.3mm, roll
11 passage of passage processed.Concrete operation step is as follows：
The first step, " inspection ", refers to all kinds of rollers contacted before rolling to strip passage with steel plate（Oil-scraping roller, plate shape roller, strip lead to
Road, working roll）And point inspection, polishing and the cleaning of threading platform.
Rolling bright plate must carry out oil-scraping roller, template roller, guide roller, working roll, oil-blooming guide-board etc. an inspection；
Template roller, guide roller roll surface must not have bump, wipe scuffing.It was found that to polish immediately, it is along the circumferential direction past using oilstone
Strike-on is ground, and is forbidden to prolong and is radially polished, is wiped after polishing with clean rag；
Oil-scraping roller roll surface must not have iron filings, and discovery will immediately be cleared up, replaced immediately when more.Meanwhile oil-scraping roller rotates flexible, mark
Standard can stop naturally for promotion oil-scraping roller；
Using clean rag by guide roller to the platform wiped clean between oil-scraping roller, it is impossible to there is the fouls such as iron filings, greasy filth；
Key area using black cat washer to mill housing entrance, outlet（Oil-scraping roller roller supporting rack, pinch roller support
Frame）It is rinsed, ensures foreign, shredded paper, iron filings.
Second step, " oil ", selects ROLLING OIL flow 5500L/min, 39 DEG C of oil temperature.
The flow of ROLLING OIL influences to roll rear surface of steel plate exquisiteness degree and finish with oil temperature, and experiment shows oil temperature in 30-
60 DEG C, it is preferable that flow 3000-6000L/min rolls rear surface of steel plate.
3rd step, " using roller ", refers to that progressively the work roll changing method of transition uses felt to roughness with oil-scraping roller during rolling
Roller method.
Two roller of oil-scraping roller uses felt roll, and felt roll pressure is 0.02bar/mm, and the 1st passage to two roller of the 9th passage, four-roller are whole
Use, the 10th passage and the 11st passage are only using two rollers without using four-roller.
1st passage replaces 0.35 μm of refiner roll using 0.5 μm new of corase grinding roller, the 3rd passage, before rolling the 9th passage
Section will not be rolled to cut off with changeover portion, replace 0.15 μm of refiner roll, the 10th passage replaces 0.01 μm of M2 polishing rolls.
4th step, " unloading leader tape ", will not roll section in advance when referring to be rolled down to lower thickness and lay down end to end.
The operation of rolling is that thickness is thinned, the process of extension, existing end to end during rolling not roll section and changeover portion, bright
Total deformation is larger, and generally more than 70%, raw material is with rolling the thickness difference of rear steel plate more when the bigger coil of strip of finished product thickness rolls
Greatly, section excision will not be rolled when therefore being rolled down to lower thickness end to end, the present embodiment will not roll section and changeover portion before rolling the 9th passage
Excision, is batched using sleeve and is rolled again, and the thickness transitions reduced in coiling process are poor.
5th step, " speed limit ", passage limits mill speed with final pass before finished product.10th passes speed
500m/min, the 11st passes speed 260m/min.
Bright degreasing annealing is carried out after rolling, annealing rear surface is visually inspected, surface of steel plate do not find foreign matter press-in,
Wipe surface defect, the surface quality such as scuffing, short scratch, horizontal roll marks, oil-scraping roller aberration, oil-scraping roller roll marks and reach expected effect
Fruit.
Claims (6)
- A kind of 1. milling method of stainless steel wide cut bright plate, it is characterised in that：Comprise the following steps：（1）" inspection "：All kinds of rollers that contacts to strip passage with steel plate and threading platform carry out an inspection, polish and clearly before rolling Reason；All kinds of rollers include oil-scraping roller, plate shape roller, strip passage, working roll；（2）" oil "：Determine ROLLING OIL flow be 3000-6000L/min, oil temperature be 30-60 DEG C；（3）" using roller "：Progressively the work roll changing method of transition uses felt roll method to roughness with oil-scraping roller during rolling；（4）" unloading leader tape "：When to be rolled down to thickness be 0.25-1.5mm, section will not be rolled end to end in advance and laid down；（5）" speed limit ", passage limits mill speed with final pass before finished product.
- 2. the milling method of stainless steel wide cut bright plate according to claim 1, it is characterised in that：In the operation of rolling more Grinding roller is changed, the first passage replaces 0.1 ~ 0.35 μm of refiner roll using 0.2 ~ 0.5 μm new of corase grinding roller, pony-roughing pass.
- 3. the milling method of stainless steel wide cut bright plate according to claim 2, it is characterised in that：Roll Ni steel bright plates When, passage uses 0.01 ~ 0.1 μm of M2 polishing rolls with final pass before finished product.
- 4. the milling method of stainless steel wide cut bright plate according to claim 2, it is characterised in that：Roll Cr steel bright plates When, passage uses 0.01 ~ 0.2 μm of roller before finished product, and final pass uses 0.01 ~ 0.1 μm of M2 polishing rolls.
- 5. the milling method of stainless steel wide cut bright plate according to claim 1, it is characterised in that：Two roller of oil-scraping roller uses Felt roll replaces copper roller, and felt roll pressure is 0.01 ~ 0.05bar/mm, and passage and final pass only do not have to four-roller with two rollers before finished product, Other two rollers of passage, four-roller all use.
- 6. the milling method of stainless steel wide cut bright plate according to claim 1, it is characterised in that：Passes before finished product Speed control is controlled in 50 ~ 300m/min in 100 ~ 500m/min, final pass mill speed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711054643.4A CN107900099B (en) | 2017-11-01 | 2017-11-01 | A kind of milling method of stainless steel wide cut bright plate |
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|---|---|---|---|
| CN201711054643.4A CN107900099B (en) | 2017-11-01 | 2017-11-01 | A kind of milling method of stainless steel wide cut bright plate |
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| CN107900099A true CN107900099A (en) | 2018-04-13 |
| CN107900099B CN107900099B (en) | 2019-11-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332394A (en) * | 2018-09-30 | 2019-02-15 | 山西太钢不锈钢股份有限公司 | Eliminate the method that stainless steel wide cut cold plate rolls local heat slid wound defect |
| CN111515257A (en) * | 2020-04-29 | 2020-08-11 | 山西太钢不锈钢股份有限公司 | Method for controlling rolling stripe color difference defect of stainless steel wide bright plate |
| CN112474817A (en) * | 2020-11-16 | 2021-03-12 | 山西太钢不锈钢股份有限公司 | Method for controlling surface short wiping white mark defects of 430-series thick cold plate |
| CN112934961A (en) * | 2021-02-24 | 2021-06-11 | 山西太钢不锈钢精密带钢有限公司 | Method for avoiding roller sticking defect on surface of precision strip steel raw material and application thereof |
| CN114850212A (en) * | 2022-04-27 | 2022-08-05 | 首钢智新迁安电磁材料有限公司 | Method for eliminating roll mark defect on surface of strip steel in cold rolling process |
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| CN109332394A (en) * | 2018-09-30 | 2019-02-15 | 山西太钢不锈钢股份有限公司 | Eliminate the method that stainless steel wide cut cold plate rolls local heat slid wound defect |
| CN109332394B (en) * | 2018-09-30 | 2019-11-08 | 山西太钢不锈钢股份有限公司 | Eliminate the method that stainless steel wide cut cold plate rolls local heat slid wound defect |
| CN111515257A (en) * | 2020-04-29 | 2020-08-11 | 山西太钢不锈钢股份有限公司 | Method for controlling rolling stripe color difference defect of stainless steel wide bright plate |
| CN112474817A (en) * | 2020-11-16 | 2021-03-12 | 山西太钢不锈钢股份有限公司 | Method for controlling surface short wiping white mark defects of 430-series thick cold plate |
| CN112934961A (en) * | 2021-02-24 | 2021-06-11 | 山西太钢不锈钢精密带钢有限公司 | Method for avoiding roller sticking defect on surface of precision strip steel raw material and application thereof |
| CN114850212A (en) * | 2022-04-27 | 2022-08-05 | 首钢智新迁安电磁材料有限公司 | Method for eliminating roll mark defect on surface of strip steel in cold rolling process |
| CN114850212B (en) * | 2022-04-27 | 2024-04-12 | 首钢智新迁安电磁材料有限公司 | Method for eliminating roll mark defect on surface of strip steel in cold rolling process |
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