CN110125768B - Grinding process for M-shaped cracks of stainless steel coil - Google Patents
Grinding process for M-shaped cracks of stainless steel coil Download PDFInfo
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- CN110125768B CN110125768B CN201810132455.7A CN201810132455A CN110125768B CN 110125768 B CN110125768 B CN 110125768B CN 201810132455 A CN201810132455 A CN 201810132455A CN 110125768 B CN110125768 B CN 110125768B
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/006—Machines or devices using grinding or polishing belts; Accessories therefor for special purposes, e.g. for television tubes, car bumpers
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/008—Machines comprising two or more tools or having several working posts
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
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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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a grinding process for M-shaped cracks of a stainless steel coil, which is characterized in that a grinding belt is fixed in a surrounding manner through a tension roller and a contact roller, a steel belt is arranged between a pressure supporting roller and the contact roller which are arranged up and down, two ends of the steel belt are pressed and fixed through a band-type brake roller, two ends of the steel belt which is in contact with the band-type brake roller form a grinding angle smaller than 45 degrees with a horizontal plane, the moving directions of the grinding belt and the steel belt are opposite, and the grinding process specifically comprises the following process steps: rough grinding → surface light grinding → surface polishing → rough grinding → surface light grinding → surface polishing. The grinding process is divided into 2 times of coarse grinding (ZrO)2Grinding belt), 2 times coarser grinding (ZrO)2Abrasive tape), 1-time surface light grinding (ZrO)2Abrasive tape) and 1-time surface polishing (Al)2O3Grinding belt), can make the surface of stainless steel coil of strip reach fine grinding effect, and improved production efficiency low, practiced thrift equipment and labour, reduced manufacturing cost.
Description
Technical Field
The invention relates to a stainless steel processing technology, in particular to a grinding technology for M-shaped cracks of a stainless steel coil.
Background
After the stainless steel is subjected to hot rolling, solution annealing and acid washing, the surface of the stainless steel is silvery white and matt, and at the moment, M-shaped cracks are formed on the surface of the steel coil, so that the use requirements of customers on the surface of the stainless steel are influenced, and the mechanical properties and the surface corrosion resistance of the stainless steel are influenced. In order to ensure the surface quality of the subsequent cold-rolled product, the M-shaped cracks need to be ground and eliminated, and the grinding process affects the grinding efficiency, the surface quality of the stainless steel coil after grinding and the length of grinding marks left after grinding.
The traditional grinding process generally needs more than three rounds of repetition to finally eliminate M-shaped cracks, small white spots and grinding marks on the surface of the steel strip, so that the grinding production efficiency is low, equipment and energy are wasted, the production cost is increased, and the operation personnel are heavy in work.
The method improves the grinding conditions and the process, and comprises 2 times of rough grinding (ZrO2 grinding belt), 2 times of rough grinding (ZrO2 grinding belt), 1 time of surface light grinding (ZrO2 grinding belt) and 1 time of surface polishing (Al2O3 grinding belt), and can ensure that the surface of the stainless steel coil achieves good grinding effect only by repeating the grinding process twice, improve the production efficiency, save the equipment and the labor force and reduce the production cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a grinding process for M-shaped cracks of a stainless steel ring, which comprises 2 times of rough grinding (ZrO2 grinding belt), 2 times of rough grinding (ZrO2 grinding belt), 1 time of surface light grinding (ZrO2 grinding belt) and 1 time of surface polishing (Al2O3 grinding belt), and can ensure that the surface of the stainless steel ring can achieve good grinding effect only by repeating the grinding process twice, improve the production efficiency, save equipment and labor force and reduce the production cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a stainless steel coil of strip M type crackle's grinding process, it is fixed to encircle through tension roll and contact roller with the abrasive band, arranges the steel band in between the pressure backing roll that sets up from top to bottom and the contact roller, and it is fixed that the both ends of steel band are passed through the band-type brake roller and are pushed down, and the both ends of the steel band that contacts with the band-type brake roller form with the horizontal plane and are less than 45 the grinding angle, and the motion direction of abrasive band and steel band is opposite, specifically includes following process steps: rough grinding → surface light grinding → surface polishing → rough grinding → surface light grinding → surface polishing;
wherein, rough grinding, the upper and lower surfaces of the steel belt pass through No. 1 grinding belt machine set and No. 2 grinding belt machine set respectively twice, and ZrO2 grinding belts with the use times not more than four are adopted by the two machine sets; the upper surface and the lower surface of the steel belt pass through a No. 3 grinding belt unit and a No. 4 grinding belt unit respectively twice, and ZrO2 grinding belts with the use times of four times to eight times are adopted by the two units; the surface is lightly ground, the upper surface and the lower surface of the steel strip respectively pass through a No. 5 grinding belt unit twice, and the unit adopts a ZrO2 grinding belt which is used for more than ten times; and (3) polishing the surfaces, wherein the upper surface and the lower surface of the steel strip pass through a No. 6 grinding belt unit twice respectively, and the unit adopts an Al2O3 grinding belt which is used for more than ten times.
In the technical scheme, the use current of the pressure support roller for mounting the grinding belt 1 is preferably 70-110A.
Preferably, the grinding belt rotates at 1200rmp/min in the opposite direction of the steel belt to grind the steel belt, the grinding speed of the grinding belt is 6-7 mpm, and mineral oil with the spray speed of 800L/min is used for lubricating the surface of the steel belt during grinding.
Preferably, the grinding angle is 13 °.
Preferably, the four processes of rough grinding, surface light grinding and surface polishing grind the surface of the steel strip by 12 μm, 5 μm, 2 μm and 1 μm respectively.
Preferably, the ZrO2 abrasive tape comprises 60 weight percent Al2O3 and 39 weight percent ZrO 2.
The Al2O3 abrasive tape contained 96.6 weight percent Al2O3 and 2.6 weight percent TiO 2.
Preferably, the particle sizes of the ZrO2 grinding belt and the Al2O3 grinding belt are both 80 meshes, the Knoop hardness of the ZrO2 grinding belt is 2000MPa, and the Knoop hardness of the Al2O3 grinding belt is 2100 MPa.
Preferably, the using current of the pressure supporting roller in the rough grinding step is 70-80A, the using current of the pressure supporting roller in the rough grinding step is 80-88A, the using current of the pressure supporting roller in the surface light grinding step is 88A, and the using current of the pressure supporting roller in the surface polishing step is 90A.
Preferably, the current used for the pressure supporting roller in the rough grinding step is 75A, the current used for the pressure supporting roller in the rough grinding step is 84A, the current used for the pressure supporting roller in the surface light grinding step is 88A, and the current used for the pressure supporting roller in the surface polishing step is 90A.
In the grinding process of the stainless steel coil M-shaped cracks, the specific parameters are shown in the following table:
in the technical scheme, the steel belt is subjected to rough grinding for 2 times (ZrO2 abrasive belt), rough grinding for 2 times (ZrO2 abrasive belt), light grinding for 1 time (ZrO2 abrasive belt) and surface polishing for 1 time (Al2O3 abrasive belt), only twice repeated grinding processes are needed, the surface of the stainless steel coil can reach a good grinding effect, M-shaped cracks of each meter of the steel belt are averagely eliminated to 3-6, small white spots in grinding basically disappear, the average length of grinding marks is only 4-7 mm, residual M-shaped cracks and grinding marks can be completely eliminated in subsequent cold rolling operation, the production efficiency is improved simultaneously, equipment and labor are saved, and the production cost is reduced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of the grinding equipment for M-shaped cracks on a stainless steel coil.
FIG. 2 is a flow chart of the grinding process for the M-shaped cracks of the stainless steel coil.
In the drawings:
1. grinding belt 2, tension roller 3 and contact roller
4. Steel belt 5, pressure supporting roller 6, band-type brake roller
7. Grinding angle
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
[ example 1 ]
The utility model provides a stainless steel coil of strip M type crackle's grinding process, it is fixed to encircle through tension roll 2 and contact roller 3 with grinding tape 1, arrange steel band 4 between the pressure support roll 5 and the contact roller 3 that set up about arranging in, the both ends of steel band 4 are pressed down fixedly through contracting brake roller 6, the both ends of steel band 4 with contracting brake roller 6 contact form with the horizontal plane and are less than 45 grinding angle 7, grinding tape 1 is opposite with the motion direction of steel band 4, specifically include following process steps: rough grinding → surface light grinding → surface polishing → rough grinding → surface light grinding → surface polishing;
wherein, rough grinding, the upper and lower surfaces of the steel strip 4 pass through No. 1 grinding belt machine set and No. 2 grinding belt machine set respectively twice, and ZrO2 grinding belts with use times not more than four times are adopted by the two machine sets; the upper surface and the lower surface of the steel strip 4 are subjected to rough grinding respectively twice by a No. 3 grinding belt unit and a No. 4 grinding belt unit, and ZrO2 grinding belts with the use times of four to eight are adopted by the two units; the surface is lightly ground, the upper surface and the lower surface of the steel strip 4 respectively pass through a No. 5 grinding belt unit twice, and the unit adopts a ZrO2 grinding belt which is used for more than ten times; and (3) polishing the surface, wherein the upper surface and the lower surface of the steel strip 4 respectively pass through a No. 6 grinding belt unit twice, and the unit adopts an Al2O3 grinding belt which is used for more than ten times.
The current used by the pressure supporting roller 5 on which the polishing tape 1 is mounted is 70-110A.
The grinding belt 1 rotates at 1200rmp/min along the direction opposite to the steel belt 4 to grind the steel belt 4, the grinding speed of the grinding belt 1 is 6-7 mpm, and mineral oil with the spraying speed of 800L/min is required to lubricate the surface of the steel belt during grinding.
The grinding angle 7 is 13 °.
Rough grinding, light grinding and surface polishing, wherein the grinding amount of the surface of the steel strip 4 in the four processes is 12 microns, 5 microns, 2 microns and 1 micron respectively.
The ZrO2 abrasive tape contained 60 weight percent Al2O3 and 39 weight percent ZrO 2.
The Al2O3 abrasive tape contained 96.6 weight percent Al2O3 and 2.6 weight percent TiO 2.
The particle sizes of the ZrO2 grinding belt and the Al2O3 grinding belt are both 80 meshes, the Knoop hardness of the ZrO2 grinding belt is 2000MPa, and the Knoop hardness of the Al2O3 grinding belt is 2100 MPa.
The current used for the pressure backup roller 5 in the rough grinding step was 75A, the current used for the pressure backup roller 5 in the rough grinding step was 86A, the current used for the pressure backup roller 5 in the surface light grinding step was 88A, and the current used for the pressure backup roller 5 in the surface polishing step was 90A.
In the grinding process of the stainless steel coil M-shaped cracks, the specific parameters are shown in the following table:
in this embodiment, the steel band is through 2 times coarse grinding (the ZRO2 abrasive band), 2 times coarse grinding (the ZRO2 abrasive band), 1 time light surface grinding (the ZRO2 abrasive band) and 1 time surface polishing (the AL2O3 abrasive band), only need twice repeated grinding process, can make the surface of stainless steel coil of strip reach fine grinding effect, the M type crackle of per meter steel band is eliminated to 4 on average, the little white point sporadic existence of grinding, grinding trace length is on average 6mm, remaining M type crackle and grinding trace can be eliminated in follow-up cold rolling operation completely, and simultaneously the production efficiency is improved, equipment and labour have been practiced thrift, and production cost is reduced.
[ example 2 ]
The utility model provides a stainless steel coil of strip M type crackle's grinding process, it is fixed to encircle through tension roll 2 and contact roller 3 with grinding tape 1, arrange steel band 4 between the pressure support roll 5 and the contact roller 3 that set up about arranging in, the both ends of steel band 4 are pressed down fixedly through contracting brake roller 6, the both ends of steel band 4 with contracting brake roller 6 contact form with the horizontal plane and are less than 45 grinding angle 7, grinding tape 1 is opposite with the motion direction of steel band 4, specifically include following process steps: rough grinding → surface light grinding → surface polishing → rough grinding → surface light grinding → surface polishing;
wherein, rough grinding, the upper and lower surfaces of the steel strip 4 pass through No. 1 grinding belt machine set and No. 2 grinding belt machine set respectively twice, and ZrO2 grinding belts with use times not more than four times are adopted by the two machine sets; the upper surface and the lower surface of the steel strip 4 are subjected to rough grinding respectively twice by a No. 3 grinding belt unit and a No. 4 grinding belt unit, and ZrO2 grinding belts with the use times of four to eight are adopted by the two units; the surface is lightly ground, the upper surface and the lower surface of the steel strip 4 respectively pass through a No. 5 grinding belt unit twice, and the unit adopts a ZrO2 grinding belt which is used for more than ten times; and (3) polishing the surface, wherein the upper surface and the lower surface of the steel strip 4 respectively pass through a No. 6 grinding belt unit twice, and the unit adopts an Al2O3 grinding belt which is used for more than ten times.
The current used by the pressure supporting roller 5 on which the polishing tape 1 is mounted is 70-110A.
The grinding belt 1 rotates at 1200rmp/min along the direction opposite to the steel belt 4 to grind the steel belt 4, the grinding speed of the grinding belt 1 is 6-7 mpm, and mineral oil with the spraying speed of 800L/min is required to lubricate the surface of the steel belt during grinding.
The grinding angle 7 is 13 °.
Rough grinding, light grinding and surface polishing, wherein the grinding amount of the surface of the steel strip 4 in the four processes is 12 microns, 5 microns, 2 microns and 1 micron respectively.
The ZrO2 abrasive tape contained 60 weight percent Al2O3 and 39 weight percent ZrO 2.
The Al2O3 abrasive tape contained 96.6 weight percent Al2O3 and 2.6 weight percent TiO 2.
The particle sizes of the ZrO2 grinding belt and the Al2O3 grinding belt are both 80 meshes, the Knoop hardness of the ZrO2 grinding belt is 2000MPa, and the Knoop hardness of the Al2O3 grinding belt is 2100 MPa.
The current used for the pressure backup roller 5 in the rough grinding step is 71A, the current used for the pressure backup roller 5 in the rough grinding step is 84A, the current used for the pressure backup roller 5 in the surface light grinding step is 88A, and the current used for the pressure backup roller 5 in the surface polishing step is 90A.
In the grinding process of the stainless steel coil M-shaped cracks, the specific parameters are shown in the following table:
in this embodiment, the steel band is through 2 times coarse grinding (ZrO2 abrasive band), 2 times coarse grinding (ZrO2 abrasive band), 1 time light surface grinding (ZrO2 abrasive band) and 1 time surface polishing (Al2O3 abrasive band), only need twice repeated grinding process, can make the surface of stainless steel coil of strip reach fine grinding effect, the M type crackle of per meter steel band is eliminated to 6 on average, the little white point sporadic existence of grinding, it is 7mm on average to grind trace length, remaining M type crackle and grinding trace can be eliminated at follow-up cold rolling operation completely, and simultaneously, the production efficiency is improved, equipment and labour have been practiced thrift, and the production cost is reduced.
[ example 3 ]
The utility model provides a stainless steel coil of strip M type crackle's grinding process, it is fixed to encircle through tension roll 2 and contact roller 3 with grinding tape 1, arrange steel band 4 between the pressure support roll 5 and the contact roller 3 that set up about arranging in, the both ends of steel band 4 are pressed down fixedly through contracting brake roller 6, the both ends of steel band 4 with contracting brake roller 6 contact form with the horizontal plane and are less than 45 grinding angle 7, grinding tape 1 is opposite with the motion direction of steel band 4, specifically include following process steps: rough grinding → surface light grinding → surface polishing → rough grinding → surface light grinding → surface polishing;
wherein, rough grinding, the upper and lower surfaces of the steel strip 4 pass through No. 1 grinding belt machine set and No. 2 grinding belt machine set respectively twice, and ZrO2 grinding belts with use times not more than four times are adopted by the two machine sets; the upper surface and the lower surface of the steel strip 4 are subjected to rough grinding respectively twice by a No. 3 grinding belt unit and a No. 4 grinding belt unit, and ZrO2 grinding belts with the use times of four to eight are adopted by the two units; the surface is lightly ground, the upper surface and the lower surface of the steel strip 4 respectively pass through a No. 5 grinding belt unit twice, and the unit adopts a ZrO2 grinding belt which is used for more than ten times; and (3) polishing the surface, wherein the upper surface and the lower surface of the steel strip 4 respectively pass through a No. 6 grinding belt unit twice, and the unit adopts an Al2O3 grinding belt which is used for more than ten times.
The current used by the pressure supporting roller 5 on which the polishing tape 1 is mounted is 70-110A.
The grinding belt 1 rotates at 1200rmp/min along the direction opposite to the steel belt 4 to grind the steel belt 4, the grinding speed of the grinding belt 1 is 6-7 mpm, and mineral oil with the spraying speed of 800L/min is required to lubricate the surface of the steel belt during grinding.
The grinding angle 7 is 13 °.
Rough grinding, light grinding and surface polishing, wherein the grinding amount of the surface of the steel strip 4 in the four processes is 12 microns, 5 microns, 2 microns and 1 micron respectively.
The ZrO2 abrasive tape contained 60 weight percent Al2O3 and 39 weight percent ZrO 2.
The Al2O3 abrasive tape contained 96.6 weight percent Al2O3 and 2.6 weight percent TiO 2.
The particle sizes of the ZrO2 grinding belt and the Al2O3 grinding belt are both 80 meshes, the Knoop hardness of the ZrO2 grinding belt is 2000MPa, and the Knoop hardness of the Al2O3 grinding belt is 2100 MPa.
The current used for the pressure backup roller 5 in the rough grinding step is 75A, the current used for the pressure backup roller 5 in the rough grinding step is 84A, the current used for the pressure backup roller 5 in the surface light grinding step is 88A, and the current used for the pressure backup roller 5 in the surface polishing step is 90A.
In the grinding process of the stainless steel coil M-shaped cracks, the specific parameters are shown in the following table:
in this embodiment, the steel band is through 2 times coarse grinding (ZrO2 abrasive band), 2 times coarse grinding (ZrO2 abrasive band), 1 time light surface grinding (ZrO2 abrasive band) and 1 time surface polishing (Al2O3 abrasive band), only need twice repeated grinding process, can make the surface of stainless steel coil of strip reach fine grinding effect, the M type crackle of per meter steel band is eliminated to 3 on average, the little white point of grinding disappears, it is 4mm on average to grind trace length, remaining M type crackle and grinding trace can be eliminated at follow-up cold rolling operation completely, and simultaneously, the production efficiency is improved, equipment and labour have been practiced thrift, and the production cost is reduced.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the scope of the present invention without any changes or substitutions that may be conceived by inventive efforts within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (10)
1. A grinding process for M-shaped cracks of a stainless steel coil is characterized by comprising the following steps: encircle fixedly with abrasive band (1) through tension roll (2) and contact roller (3), arrange steel band (4) between pressure backing roll (5) and the contact roller (3) that set up from top to bottom in, the both ends of steel band (4) are pressed down fixedly through contracting brake roller (6), the both ends and the horizontal plane of steel band (4) with contracting brake roller (6) contact form and are less than 45 grinding angle (7), the motion direction of abrasive band (1) and steel band (4) is opposite, specifically include following process steps: rough grinding → surface light grinding → surface polishing → rough grinding → surface light grinding → surface polishing;
wherein, the rough grinding is carried out, the upper surface and the lower surface of the steel belt (4) respectively pass through a No. 1 grinding belt unit and a No. 2 grinding belt unit twice, and ZrO with the use times not more than four is adopted by the two units2A grinding belt; the upper surface and the lower surface of the steel belt (4) are respectively subjected to No. 3 grinding belt unit and No. 4 grinding belt unit twice, and ZrO with the use times of four times to eight times is adopted by the two units2A grinding belt; the surface is lightly ground, the upper surface and the lower surface of the steel belt (4) respectively pass through a No. 5 grinding belt unit twice, and the unit adopts ZrO with the use frequency more than ten times2A grinding belt; surface polishing, wherein the upper surface and the lower surface of the steel belt (4) respectively pass through a No. 6 grinding belt unit twice, and the unit adopts Al with the use frequency more than ten times2O3And (4) grinding the belt.
2. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 1, wherein the grinding process comprises the following steps: the current used by the pressure supporting roller (5) provided with the grinding belt (1) is 70-110A.
3. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 1, wherein the grinding process comprises the following steps: the grinding belt (1) rotates at 1200rmp/min to grind the steel belt (4) along the direction opposite to the steel belt (4), the grinding speed of the grinding belt (1) is 6-7 mpm, and mineral oil with the spraying speed of 800L/min is required to lubricate the surface of the steel belt during grinding.
4. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 1, wherein the grinding process comprises the following steps: the grinding angle (7) is 13 degrees.
5. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 1, wherein the grinding process comprises the following steps: the four processes of rough grinding, light grinding and surface polishing are respectively 12 microns, 5 microns, 2 microns and 1 micron for the surface grinding amount of the steel strip (4).
6. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 1, wherein the grinding process comprises the following steps: ZrO (ZrO)2The abrasive tape contained 60% by weight of Al2O339% by weight of ZrO2。
7. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 1, wherein the grinding process comprises the following steps: al (Al)2O3The abrasive tape contained 96.6% by weight of Al2O32.6% by weight of TiO2。
8. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 1, wherein the grinding process comprises the following steps: ZrO (ZrO)2Abrasive tape and Al2O3The particle size of the grinding belt is 80 meshes, ZrO2The Knoop hardness of the grinding belt is 2000MPa, and Al2O3The Knoop hardness of the abrasive tape was 2100 MPa.
9. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 2, wherein the grinding process comprises the following steps: the using current of the pressure supporting roller (5) in the rough grinding step is 70-80A, the using current of the pressure supporting roller (5) in the rough grinding step is 80-88A, the using current of the pressure supporting roller (5) in the surface light grinding step is 88A, and the using current of the pressure supporting roller (5) in the surface polishing step is 90A.
10. The grinding process for the M-shaped cracks of the stainless steel coil as claimed in claim 9, wherein the grinding process comprises the following steps: the using current of the pressure supporting roller (5) in the rough grinding step is 75A, the using current of the pressure supporting roller (5) in the rough grinding step is 84A, the using current of the pressure supporting roller (5) in the surface light grinding step is 88A, and the using current of the pressure supporting roller (5) in the surface polishing step is 90A.
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| CN201810132455.7A CN110125768B (en) | 2018-02-09 | 2018-02-09 | Grinding process for M-shaped cracks of stainless steel coil |
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| CN201810132455.7A CN110125768B (en) | 2018-02-09 | 2018-02-09 | Grinding process for M-shaped cracks of stainless steel coil |
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| CN112847061A (en) * | 2020-12-31 | 2021-05-28 | 浦项(张家港)不锈钢股份有限公司 | Method for removing cracks on surface of super austenitic stainless steel strip steel and product |
| CN113523911B (en) * | 2021-07-27 | 2023-08-25 | 山东泰山钢铁集团有限公司 | Method for solving cracks of 10Cr17 steel grade head and tail blanks |
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| CN202804871U (en) * | 2012-04-13 | 2013-03-20 | 李瑾 | Conveyor belt type processing machine for raised-grain wood floorboard |
| CN202943514U (en) * | 2012-12-10 | 2013-05-22 | 肇庆市大旺礼尚亨涂料机械有限公司 | Improved wide belt sanding machine |
| CN203141273U (en) * | 2013-03-26 | 2013-08-21 | 江苏甬金金属科技有限公司 | Sand grinding machine |
| CN103433319A (en) * | 2013-08-07 | 2013-12-11 | 宁波宝新不锈钢有限公司 | Manufacture method of stainless steel external wall panel for rail vehicle |
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Address after: 215625 Puxiang (Zhangjiagang) Stainless Steel Co., Ltd. on the north side of the Yangtze River Highway, Jinfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Applicant after: Puxiang (Zhangjiagang) Stainless Steel Co., Ltd. Address before: 215625 Suzhou City, Jiangsu province Zhangjiagang Fengzhen Zhangjiagang Pohang Stainless Steel Co., Ltd. Applicant before: Puxiang Stainless Steel Co Ltd, Shangjiagang |
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