CN112276698A - Grinding method for controlling short scratches on surface of cold roller - Google Patents
Grinding method for controlling short scratches on surface of cold roller Download PDFInfo
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- CN112276698A CN112276698A CN202010625310.8A CN202010625310A CN112276698A CN 112276698 A CN112276698 A CN 112276698A CN 202010625310 A CN202010625310 A CN 202010625310A CN 112276698 A CN112276698 A CN 112276698A
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 99
- 239000010431 corundum Substances 0.000 claims abstract description 98
- 239000000919 ceramic Substances 0.000 claims abstract description 97
- 239000013078 crystal Substances 0.000 claims abstract description 84
- 238000005406 washing Methods 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 7
- 238000005498 polishing Methods 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 11
- 238000005096 rolling process Methods 0.000 abstract description 4
- 230000003746 surface roughness Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 9
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000005097 cold rolling Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/37—Single-purpose machines or devices for grinding rolls, e.g. barrel-shaped rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/04—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
Abstract
A grinding method for controlling cold roll surface shortcuts, said method comprising the steps of: a single crystal corundum ceramic grinding wheel is arranged on a grinding machine; a washing nozzle for washing the monocrystalline corundum ceramic grinding wheel is arranged on the grinding machine; configuring filter paper with a preset specification in a filter system on the grinding machine; a cold roll is arranged on the grinding machine and is opposite to the monocrystalline corundum ceramic grinding wheel; starting the grinding machine, the monocrystalline corundum ceramic grinding wheel and the washing nozzle; using the single-crystal corundum ceramic grinding wheel to perform coarse grinding on the cold roll; carrying out semi-coarse grinding on the cold roller by using the single crystal corundum ceramic grinding wheel; semi-fine grinding is carried out on the cold roll by using the single crystal corundum ceramic grinding wheel; and finely grinding the cold roll by using the single crystal corundum ceramic grinding wheel. The roller surface size precision can be effectively improved, the surface roughness is reduced, the short scratch defect of the roller surface is restrained, and the requirement of high-precision surface rolling can be quickly and effectively met.
Description
Technical Field
The invention belongs to the technical field of production and processing of cold-rolled products, and particularly relates to a grinding method for controlling short scratches on the surface of a cold roller.
Background
In the production process of cold-rolled sheets, the surface appearance of the roller can be copied on the sheet surface to influence the surface quality. In order to reduce the influence of the surface defects of the roller on the cold-rolled sheet, more and more production plants adopt materials such as Cr5 forged steel or high-speed steel with higher hardness to prepare the roller, and the surface roughness of the roller can reach Ra 0.5-0.8 um or even lower. The surface of the roller has no defects of knifes, vibration marks, burns and the like, and also puts accurate requirements on scratches generated by grinding of a grinding wheel, and the defects are generally called as short scratches. The defect is microscopically generated by scratching the roller surface by abrasive particles, and the number and the size of short scratches can be reduced as much as possible so as to meet the requirements of the final plate surface (the length of the scratches is less than or equal to 4mm, and the number of the scratches is less than or equal to 1/M).
The short scratch is caused by that the grinding wheel has uneven particles or single abrasive particles are too large and the grinding material is too sharp, and the roller surface is scratched during grinding due to scratching in the accurate grinding process; secondly, the excessive impurity slag or the falling abrasive particles in the grinding fluid are attached to the surface of the grinding wheel to scratch the surface of the roller.
The cold roll is mainly made of Cr3, Cr5 forged steel or high-speed steel, and the hardness of the roll surface is as high as more than 90 HSD. According to the material and grinding requirements of the cold roll, at present, a white corundum resin type grinding wheel is mainly used, the grinding material is white and high-purity Al203 corundum crystals, the cutting capability is strong, and the white corundum resin type grinding wheel is suitable for processing quenched steel, thread grinding, gear grinding and the like; the resin bonding agent has the advantages of high strength, good elasticity, poor heat resistance and the like, and is mainly used for cutting, slotting and flat grinding of a main shaft; the porosity is small, and the plugging is easy to occur; the abrasion is fast, the profile is easily removed, and the corrosion resistance is poor.
In the prior art, the dimensional accuracy of the roller surface can be improved and the roughness of the plate surface can be reduced by selecting grinding wheels with different abrasives and bonding agents or optimizing grinding processes, grinding parameters and other methods, but the working efficiency is low, the defect of short scratch of the roller surface is not effectively overcome, and the requirement of high-precision surface rolling cannot be met.
Disclosure of Invention
In view of the above, the present invention provides a grinding method for controlling short scratches on the surface of a cold roll that overcomes or at least partially solves the above-mentioned problems.
In order to solve the technical problem, the invention provides a grinding method for controlling short scratches on the surface of a cold roll, which comprises the following steps:
a single crystal corundum ceramic grinding wheel is arranged on a grinding machine;
a washing nozzle for washing the monocrystalline corundum ceramic grinding wheel is arranged on the grinding machine;
configuring filter paper with a preset specification in a filter system on the grinding machine;
a cold roll is arranged on the grinding machine and is opposite to the monocrystalline corundum ceramic grinding wheel;
starting the grinding machine, the monocrystalline corundum ceramic grinding wheel and the washing nozzle;
using the single-crystal corundum ceramic grinding wheel to perform coarse grinding on the cold roll;
carrying out semi-coarse grinding on the cold roller by using the single crystal corundum ceramic grinding wheel;
semi-fine grinding is carried out on the cold roll by using the single crystal corundum ceramic grinding wheel;
and finely grinding the cold roll by using the single crystal corundum ceramic grinding wheel.
Preferably, the filtering precision of the filter paper is 20-60um, and the retained particle number is 20-40 um.
Preferably, when the single-crystal corundum ceramic grinding wheel is used for carrying out coarse grinding on the cold roller, the rotating speed of the single-crystal corundum ceramic grinding wheel is 12-20r/m, the transverse moving speed of the grinding machine is 1600-2600mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed rate is within 0.05mm, and the current of the single-crystal corundum ceramic grinding wheel is 26A-34A.
Preferably, when the single-crystal corundum ceramic grinding wheel is used for carrying out half-coarse grinding on the cold roller, the rotating speed of the single-crystal corundum ceramic grinding wheel is 16-20r/m, the transverse moving speed of the grinding machine is 1200-1600mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed rate is within 0.05mm, and the current of the single-crystal corundum ceramic grinding wheel is 26A-34A.
Preferably, when the single-crystal corundum ceramic grinding wheel is used for semi-finely grinding the cold roller, the rotating speed of the single-crystal corundum ceramic grinding wheel is 12-20r/m, the transverse moving speed of the grinding machine is 800-1200mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed rate is within 0.01mm, and the current of the single-crystal corundum ceramic grinding wheel is 8A-12A.
Preferably, the grinding passes are 3-4 passes.
Preferably, when the single-crystal corundum ceramic grinding wheel is used for finely grinding the cold roller, the rotating speed of the single-crystal corundum ceramic grinding wheel is 12-16r/m, the transverse moving speed of the grinding machine is 400-800mm/min, the rotating speed of the cold roller is 60-70r/m, the grinding feed amount is within 0.005mm, the current of the single-crystal corundum ceramic grinding wheel is 6-10A, and the grinding is carried out for 3-4 times.
Preferably, after the cold roll is refined by using the single crystal corundum ceramic grinding wheel, the method further comprises the following steps: and polishing the cold roller by using the single crystal corundum ceramic grinding wheel.
Preferably, when the single-crystal corundum ceramic grinding wheel is used for polishing the cold roller, the rotating speed of the single-crystal corundum ceramic grinding wheel is 18-20r/m, the transverse moving speed of the grinding machine is 200-400mm/min, the rotating speed of the cold roller is 60-70r/m, the grinding feed amount is within 0.002mm, and the current of the single-crystal corundum ceramic grinding wheel is 8-12A.
Preferably, the grinding passes are 3-4 passes.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the application provides a control cold roll surface short scratch's grinding method uses single crystal corundum ceramic grinding wheel to grind the cold roll, washes the emery wheel in grinding process to and improve the filter fineness of grinding fluid, guarantee impurity particle number and size in the grinding fluid, can effectively improve roll surface dimensional accuracy, reduce roughness, restrain the short scratch defect of roll surface, can effectively satisfy the rolling needs of high-precision surface fast.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a grinding method for controlling short scratches on the surface of a cold roll according to an embodiment of the present invention;
FIG. 2 is a schematic view of the surface of a prior art cold roll ground using a resin grinding wheel;
fig. 3 is a schematic surface diagram of a cold rolling roll obtained by using the grinding method for controlling the short scratch of the surface of the cold rolling roll provided by the embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
In an embodiment of the present application, as shown in fig. 1, there is provided a grinding method for controlling short scratches on a surface of a cold roll, the method comprising:
s1: a single crystal corundum ceramic grinding wheel is arranged on a grinding machine;
s2: a washing nozzle for washing the monocrystalline corundum ceramic grinding wheel is arranged on the grinding machine;
s3: configuring filter paper with a preset specification in a filter system on the grinding machine;
s4: a cold roll is arranged on the grinding machine and is opposite to the monocrystalline corundum ceramic grinding wheel;
s5: starting the grinding machine, the monocrystalline corundum ceramic grinding wheel and the washing nozzle;
s6: using the single-crystal corundum ceramic grinding wheel to perform coarse grinding on the cold roll;
s7: carrying out semi-coarse grinding on the cold roller by using the single crystal corundum ceramic grinding wheel;
s8: semi-fine grinding is carried out on the cold roll by using the single crystal corundum ceramic grinding wheel;
s9: and finely grinding the cold roll by using the single crystal corundum ceramic grinding wheel.
In the embodiment of the present application, in the single-crystal corundum ceramic grinding wheel used in step S1, the bonding agent of the ceramic grinding wheel is clay and feldspar, the firing temperature is high, the chemical composition is stable, and the single-crystal corundum ceramic grinding wheel is heat-resistant, water-resistant and strong in strength and is mainly used for fine grinding. The grains of the single crystal corundum are single crystals, the strength and the toughness are good, the grains are expressed as 'kneading' in a grinding area in the final fine grinding stage, other abrasives are expressed as 'scraping', and the single crystal corundum has low possibility of generating short scratch and short scratch on the surface of a cold roller. Therefore, the invention reduces the short scratch on the surface of the cold roll by adopting the monocrystalline corundum ceramic grinding wheel.
In the embodiment of the application, the washing nozzle in the step S2 can wash the single crystal corundum ceramic grinding wheel, and the nozzle can continuously spray grinding fluid to clean the grinding wheel during the grinding process, so as to reduce the possibility of short scratches on the roller surface.
In the embodiment of the present application, the filtration precision of the filter paper in the filtration system in step S3 is 20-60um, and the retained particle number is 20-40 um. The filter paper improves the filtration of the grinding fluid, thereby filtering substances such as slag inclusions, abrasive particles and the like in the grinding fluid as much as possible and avoiding the particles from being clipped in the grinding area of the grinding wheel and the roller to generate scratches when the grinding fluid acts on the grinding wheel and the roller.
In the embodiment of the application, when the single-crystal corundum ceramic grinding wheel is used for roughly grinding the cold roller in the step S6, the rotating speed of the single-crystal corundum ceramic grinding wheel is 12-20r/m, the transverse moving speed of the grinding machine is 1600-2600mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed rate is within 0.05mm, and the current of the single-crystal corundum ceramic grinding wheel is 26A-34A.
In the embodiment of the application, when the single-crystal corundum ceramic grinding wheel is used for carrying out half-coarse grinding on the cold roller in step S7, the rotating speed of the single-crystal corundum ceramic grinding wheel is 16-20r/m, the transverse moving speed of the grinding machine is 1200-1600mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed rate is within 0.05mm, and the current of the single-crystal corundum ceramic grinding wheel is 26A-34A.
In the embodiment of the application, when the single crystal corundum ceramic grinding wheel is used for carrying out rough grinding and semi-rough grinding on the cold rolling roller, the grinding pass can be adjusted according to the condition of the roller surface, and the fatigue layer and the defects on the surface of the roller can be quickly removed.
In the embodiment of the application, when the single-crystal corundum ceramic grinding wheel is used for semi-finely grinding the cold roller in the step S8, the rotating speed of the single-crystal corundum ceramic grinding wheel is 12-20r/m, the transverse moving speed of the grinding machine is 800-1200mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed rate is within 0.01mm, and the current of the single-crystal corundum ceramic grinding wheel is 8A-12A. Grinding for 3-4 times.
In the embodiment of the application, the single crystal corundum ceramic grinding wheel is used for semi-finely grinding the cold rolling roller, so that the grinding mark generated by the roller in the coarse grinding stage can be reduced, and the roller surface is ensured to have no defects such as knife marks, vibration marks and the like.
In the embodiment of the application, when the single-crystal corundum ceramic grinding wheel is used for finely grinding the cold roller in the step S9, the rotating speed of the single-crystal corundum ceramic grinding wheel is 12-16r/m, the transverse moving speed of the grinding machine is 400-800mm/min, the rotating speed of the cold roller is 60-70r/m, the grinding feed amount is within 0.005mm, the current of the single-crystal corundum ceramic grinding wheel is 6-10A, and the grinding is performed for 3-4 times.
In the embodiment of the application, the single crystal corundum ceramic grinding wheel is used for accurately grinding the cold rolling roller, so that the grinding marks generated by the roller in the semi-accurate grinding stage can be further reduced, and the roughness of the roller surface is controlled between 0.3 and 0.6 um.
In the embodiment of the present application, after the step s9 of fine grinding the cold roller by using the single crystal corundum ceramic grinding wheel, the method further includes: and polishing the cold roller by using the single crystal corundum ceramic grinding wheel. By polishing the cold-rolled roller, the grinding marks generated by the roller in the fine grinding stage can be further reduced.
In the embodiment of the application, when the single-crystal corundum ceramic grinding wheel is used for polishing the cold roller, the rotating speed of the single-crystal corundum ceramic grinding wheel is 18-20r/m, the transverse moving speed of the grinding machine is 200-400mm/min, the rotating speed of the cold roller is 60-70r/m, the grinding feed amount is within 0.002mm, the current of the single-crystal corundum ceramic grinding wheel is 8-12A, and the single-crystal corundum ceramic grinding wheel is ground for 3-4 times.
The following embodiment is used to specifically describe the grinding method for controlling the short scratch on the surface of the cold roll provided by the present application.
A Talley resin grinding wheel (model: 575A601G6B0150) was placed on an HD 478-3-8X 4880 grinding machine manufactured by POMINI, and the cold roll was ground by using the grinding machine, thereby obtaining a cold roll as shown in FIG. 2. The grinding procedure was as follows:
table 1: grinding procedure for resin grinding wheel
A Tyrley ceramic grinding wheel (model: 10A1001G7AV23) was placed on an HD 478-3-8X 4880 grinding machine manufactured by POMINI, a washing nozzle for washing the Qinley ceramic grinding wheel was placed on the grinding machine, filter paper (filtration accuracy 20-60um, retained particle number 20-40um) placed in a filter system on the grinding machine was replaced, and the cold roll was ground by using the grinding machine, whereby a cold roll as shown in FIG. 3 was obtained. The grinding procedure was as follows:
table 2: grinding procedure for ceramic grinding wheel
In tables 1 and 2, the rough grinding pass and feed amount in procedure 1 are determined according to the usage and surface condition of the roll for the purpose of removing large defects such as roll surface aging layer and indentation, and the operator can select the pass number and feed amount according to the surface condition of the roll and the condition of the grinding machine for the purpose of saving cost and time, and therefore, the rough grinding pass and feed amount in procedure 1 are not confirmed.
As is apparent from fig. 2 and 3, the grinding method for controlling the short scratches on the surface of the cold roll provided by the application can be used for obtaining the cold roll surface with less short scratches.
The application provides a control cold roll surface short scratch's grinding method uses single crystal corundum ceramic grinding wheel to grind the cold roll, washes the emery wheel in grinding process to and improve the filter fineness of grinding fluid, guarantee impurity particle number and size in the grinding fluid, can effectively improve roll surface dimensional accuracy, reduce roughness, restrain the short scratch defect of roll surface, can effectively satisfy the rolling needs of high-precision surface fast.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A grinding method for controlling short scratches on the surface of a cold roll, which is characterized by comprising the following steps:
a single crystal corundum ceramic grinding wheel is arranged on a grinding machine;
a washing nozzle for washing the monocrystalline corundum ceramic grinding wheel is arranged on the grinding machine;
configuring filter paper with a preset specification in a filter system on the grinding machine;
a cold roll is arranged on the grinding machine and is opposite to the monocrystalline corundum ceramic grinding wheel;
starting the grinding machine, the monocrystalline corundum ceramic grinding wheel and the washing nozzle;
using the single-crystal corundum ceramic grinding wheel to perform coarse grinding on the cold roll;
carrying out semi-coarse grinding on the cold roller by using the single crystal corundum ceramic grinding wheel;
semi-fine grinding is carried out on the cold roll by using the single crystal corundum ceramic grinding wheel;
and finely grinding the cold roll by using the single crystal corundum ceramic grinding wheel.
2. The grinding method for controlling the short scratches on the surface of the cold roll according to claim 1, wherein the filtering precision of the filter paper is 20-60um, and the retained particle number is 20-40 um.
3. The grinding method for controlling the short scratches on the surface of the cold roller according to claim 1, wherein when the single-crystal corundum ceramic grinding wheel is used for carrying out the rough grinding on the cold roller, the rotating speed of the single-crystal corundum ceramic grinding wheel is 12-20r/m, the traversing speed of the grinding machine is 1600-2600mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed is within 0.05mm, and the current of the single-crystal corundum ceramic grinding wheel is 26A-34A.
4. The grinding method for controlling the short scratches on the surface of the cold roller according to claim 1, wherein when the single-crystal corundum ceramic grinding wheel is used for carrying out the semi-coarse grinding on the cold roller, the rotating speed of the single-crystal corundum ceramic grinding wheel is 16-20r/m, the traversing speed of the grinding machine is 1200-1600mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed is within 0.05mm, and the current of the single-crystal corundum ceramic grinding wheel is 26A-34A.
5. The grinding method for controlling the short scratches on the surface of the cold roller according to claim 1, wherein when the cold roller is semi-finished by using the single-crystal corundum ceramic grinding wheel, the rotating speed of the single-crystal corundum ceramic grinding wheel is 12-20r/m, the traversing speed of the grinding machine is 800-1200mm/min, the rotating speed of the cold roller is 30-60r/m, the grinding feed is within 0.01mm, and the current of the single-crystal corundum ceramic grinding wheel is 8A-12A.
6. A grinding method for controlling short scratches on the surface of a cold roll according to claim 5, wherein the grinding passes are 3-4 passes.
7. The grinding method for controlling the short scratches on the surface of the cold roller according to claim 1, wherein when the cold roller is finely ground by using the single crystal corundum ceramic grinding wheel, the rotating speed of the single crystal corundum ceramic grinding wheel is 12-16r/m, the traversing speed of the grinding machine is 400-800mm/min, the rotating speed of the cold roller is 60-70r/m, the grinding feed is within 0.005mm, and the current of the single crystal corundum ceramic grinding wheel is 6-10A, and the grinding is performed for 3-4 times.
8. A grinding method for controlling cold roll surface short scratches according to claim 1, further comprising, after said cold roll is refined using said single crystal corundum ceramic grinding wheel: and polishing the cold roller by using the single crystal corundum ceramic grinding wheel.
9. The grinding method for controlling the short scratches on the surface of the cold roller according to claim 8, wherein when the cold roller is polished by using the single-crystal corundum ceramic grinding wheel, the rotating speed of the single-crystal corundum ceramic grinding wheel is 18-20r/m, the transverse moving speed of the grinding machine is 200-400mm/min, the rotating speed of the cold roller is 60-70r/m, the grinding feed is within 0.002mm, and the current of the single-crystal corundum ceramic grinding wheel is 8-12A.
10. The grinding method for controlling the short scratches on the surface of the cold roll according to claim 9, wherein the grinding pass is 3 to 4 passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625310.8A CN112276698A (en) | 2020-06-30 | 2020-06-30 | Grinding method for controlling short scratches on surface of cold roller |
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| CN202010625310.8A CN112276698A (en) | 2020-06-30 | 2020-06-30 | Grinding method for controlling short scratches on surface of cold roller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN116079507A (en) * | 2023-03-15 | 2023-05-09 | 西北有色金属研究院 | Grinding method of high-precision roller for rolling micron-sized rare metal foil |
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| CN116079507A (en) * | 2023-03-15 | 2023-05-09 | 西北有色金属研究院 | Grinding method of high-precision roller for rolling micron-sized rare metal foil |
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