CN1060986C - Method of in-situ grinding rubber-plastic calendar roll - Google Patents
Method of in-situ grinding rubber-plastic calendar roll Download PDFInfo
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- CN1060986C CN1060986C CN95100851A CN95100851A CN1060986C CN 1060986 C CN1060986 C CN 1060986C CN 95100851 A CN95100851 A CN 95100851A CN 95100851 A CN95100851 A CN 95100851A CN 1060986 C CN1060986 C CN 1060986C
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Abstract
The present invention relates to a method for sharpening a roller surface of a rubber plastic calender on a machine by a conventional floating sharpening device. The present invention has the technical scheme that a roller is ground on the machine at a normal temperature. Suitable granularity of ground sand, the lead of a screw rod, the linear speed of the roller and the pressure of a grinding head are selected. The roller surface seriously damaged is sharpened to required precision through three phases of coarse grinding, medium grinding and fine grinding. In the present invention, a special grinding machine with high precision does not need to be used for carrying out fine grinding. The precision and the stability of the calender only need to be used. The sharpening effect with high precision can be simply, conveniently and quickly obtained under the conditions that the present invention is free from any working condition and environmental influence, and a shockproof measure is not needed either.
Description
The present invention relates to produce plastics, rubber, roll prolong, the calender recovery technique field of paper products, the method for particularly a kind of rubber and plastic rolling mill roller injurious surface mark reconditioning on this machine.
After surface damage of rubber and plastic rolling mill roller or the wearing and tearing, existing a kind of grinding method is it to be pulled down transport the reconditioning of professional factory to, and its grinding method is to adopt a kind of high accuracy special purpose grinder to finish grind with emery wheel, for this reason, the shockproof facility of a cover must be arranged.Also to adopt the fine measuring instrument monitoring and condition of work steady in a long-term is provided.This method can not heat reconditioning, promptly can not implement reconditioning in the roller operational temperature conditions, thereby reduce the reconditioning precision.Adopt this method also can bring defectives such as expense height, length consuming time.
Japan's disclosed publication number of special permission communique is flat 3-149165 number patent application, disclosed a kind of roll grinding device, though this technology can reconditioning on this machine, but the installation environment to grinding tool requires harsh, the adjusting accuracy strictness, must use special-purpose abrasive material, this device is used for the polishing of roller face, can't repair damaging serious roller face.
The object of the present invention is to provide a kind of method that adopts the serious roller face of conventional floating mill apparatus reconditioning damage on this machine of rubber and plastic calender, when using this method, only need at the work on hand environment, adopt conventional abrasive material just can obtain the reconditioning effect of high accuracy, high surface finish easy, quickly.
The objective of the invention is to be achieved through the following technical solutions: a kind of method that adopts floating mill apparatus reconditioning roller face on this machine of rubber and plastic calender, its grinding process parameters is:
Grinding tool: oilstone bar;
Abrasive sand: 280
#-1200
#
Lubricant: diesel oil;
Roller linear velocity: 30 meters/minute-110 meters/minute;
Wheelhead pressure: 0.8MPa-1.5MPa;
Screw rod helical pitch: 6-10 millimeter/circle;
The horizontal translational speed of bistrique: the 70-210 millimeter/minute;
Its processing step is at first to select 280 for use
#-480
#Abrasive sand, screw rod helical pitch are 6-10 millimeter/circle, the roller linear velocity be 30-80 rice/minute, wheelhead pressure is 1-1.5MPa, bistrique laterally grinds back and forth, to roller face only surplus 280
#-480
#The mill line, process of lapping is lubricated and cooling with diesel oil cleaning; Select 600 then for use
#-800
#Abrasive sand, screw rod helical pitch are 6-10 millimeter/circle, the roller linear velocity be 40-90 rice/minute, wheelhead pressure is 0.8-1MPa, bistrique laterally is ground to roller face only surplus 600 back and forth
#-800
#The mill line, the lubricated and cooling of process of lapping diesel oil cleaning; At last, select 800 for use
#-1200
#Abrasive material, screw rod helical pitch are 6-10 millimeter/circle, the roller linear velocity be 50-110 rice/minute, wheelhead pressure is under the condition of 1-1.3MPa, with the reconditioning of roller face till the desired surface smoothness; Its process is a bistrique laterally back and forth in the process of lapping, and the horizontal translational speed of the bistrique of each one way is constant speed; The horizontal translational speed of bistrique of every adjacent two one way is different and do conversion brokenly in the horizontal translational speed scope of bistrique.
Because the present invention adopts floating mill method reconditioning to be decreased the roller face, thereby the precision after the reconditioning can reach the high accuracy grade that original roller has basically.
Floating mill apparatus of the present invention is to be installed on the calendering frame, is made up of with the leading mechanism that is contained on this support simple support.Support can be according to different size, and the calender of type is by the actual size manufacturing.It can be such that the structure of described floating mill apparatus is formed: with reference to shown in Figure 1, variable speed electric motors, particularly 15 drives screw mandrel 9 rotations by gear 13, driving chain 14, gear 12, the support 8 that is socketed on guide rod 10,11 is connected with oil cylinder 6 with screw mandrel 9 engagements, support 8 one ends, support 8 other ends are connected with the bistrique 4 that balancing weight 7 and grinding tool 3 are housed, and bistrique 4 contacts with 1 crimping of roller face.The power source of oil cylinder 6 is supplied with by hydraulic means 2 by oil pipe 5.When screw mandrel 9 rotations, drive bistrique 4 and make axially reciprocating along the roller face by support 8.The effect of guide rod 10,11 is to guarantee bistrique 4 directed operations, prevents that it from swinging.The size of the balancing weight 7 above the bistrique 4 can require according to the surface roughness of different abrasive sands and grinding to change.Oil cylinder 6 is used for the bistrique automatic lifting so that change abrasive material and cleaning roller face.Also can adopt artificial lifting bistrique.
Carborundum or corundum are mainly adopted in abrasive sand of the present invention.Select different abrasive sands for use according to the roller material is different, in the hope of reach abrasive sand with by the best grinding state of grinding roller tube.Lubricant both can adopt diesel oil, also can adopt o-phthalic acid dibutyl ester (DOP).
The roller of this calender both can grind under the normal temperature on this machine, can also be heated under 170 ℃ of-200 ℃ of conditions of operating temperature at this machine to grind.
Be described in detail concrete processing step of the present invention below:
Grinding tool: oilstone bar 200 * 50 * 20
Abrasive sand: 280
#-1200
#Carborundum or corundum
Lubricant: diesel oil
The roller linear velocity:
The corase grind stage: 30-80 rice/minute;
The middle mill stage: 40-90 rice/minute;
The correct grinding stage: 50-110 rice/minute;
Balancing weight weight: 8-15 kilogram;
Screw mandrel helical pitch: 6-10mm/ circle.
Requirement to bistrique: bistrique can clamp the oilstone bar effectively, and encloses balancing weight, and bistrique comprises grinding tool, balancing weight and support thereof, steadily axially operation on the roller face evenly.
Processing step:
1, shelf position, the size according to the calender of need reconditioning roller face is fixedly mounted in the floating mill apparatus of routine on the frame as shown in Figure 2;
2, clean clean roller surface, at normal temperature or be heated to 170 ℃-200 ℃ operating temperature and carry out reconditioning; With lubricator with 280
#-320
#Abrasive sand manually stirs into starchiness, be coated in roller surface equably, on bistrique, be equipped with and abrasive sand granularity oilstone bar of the same size, balancing weight presses down, the roller linear velocity be adjusted into 30-80 rice/minute, start variable speed electric motors, particularly drive bistrique and laterally move, the horizontal translational speed of bistrique transfers to the 70-210mm/ branch, makes the horizontal mobile reconditioning roll surface scar of bistrique.Each stroke adopts the artificial break-in of two-direction switch or adorn two travel switches on frame and turns to.Need follow following principle during to the variable speed electric motors, particularly speed governing: 1. each one way is a constant speed, midway can not speed change, and 2. every adjacent two one way travel speeds can not be identical, and do conversion brokenly in the horizontal translational speed scope of bistrique.Its purpose is to make the roller face that is ground to present regular ripple, in order to avoid influence the precision of roller.
3, through after the reciprocal grindings of several times (looking the roller degree of injury), shut down the darkest scar of observing the roller face and whether be milled to the bottom, if be not milled to the bottom, continue above-mentioned operation, be milled to till the darkest scar bottom always, and reach 320
#The grinding effect of abrasive material changes the next stage reconditioning then over to.
4, the remaining abrasive material of the clean roller face of cleaning coats 400
#Abrasive sand, bistrique repacking 400# oilstone piece, pressure is constant, and the roller linear velocity is the same, behind the technology grinding several times according to step 4, reaches 400
#The reconditioning effect of abrasive material, the mill stage in can changing over to.
5, thoroughly clean the remaining abrasive material of clean roller surface, coat the 600# abrasive sand, bistrique uses 600 instead
#The oilstone piece, pressure 1MPa, the roller linear velocity adjust to 40-90 rice/minute, the horizontal translational speed of bistrique is adjusted to the 70-210mm/ branch, grinds in this and observes the roller face behind the several times, to reach the even grinding effect of 600# abrasive material.
6, the cleaning roller is replaced by 800
#Abrasive sand and oilstone bar in 5 the technology behind the mill several times, are observed the roller face set by step, reach 800
#Behind the even grinding effect of abrasive material, its surface roughness can reach 1.6.
7, the correct grinding process be with roller face surface roughness from 1.6 processes of bringing up to 0.8-0.4, at this moment, the roller linear velocity is brought up to 90 meters/minute-110 meters/minute, the middle mill of the horizontal translational speed of bistrique slows down to some extent, abrasive adopts 1000
#-1200
#, the bistrique oilstone adopts and the abrasive one-size, finish grindes by the technology of above-mentioned steps 5, behind the several times round trip, with the contrast of surface smoothness standard jig, with till reaching it and requiring.
The invention has the advantages that and the floating mill apparatus of routine can be fixed on roller with on the calender fuselage, and do not need and will remove on the roller slave, and the roller face that under normal temperature or operating temperature it is damaged carries out reconditioning, utilize the precision and the stability thereof of calender self, be not subjected to any condition of work and ambient influnence, also do not need under the situation of precautions against earthquakes, just can obtain the reconditioning effect of high accuracy, high surface finish easy, quickly.
Material of the present invention is common grinding-material, low price, wide material sources.This method processing ease simultaneously, roller repair time is short, precision is high, technical risk is few.
Fig. 1 is the structural representation that the present invention adopts floating mill apparatus reconditioning roller face on this machine;
Fig. 2 is the reconditioning part vertical view of structure shown in Figure 1.
By the following example the present invention is further elaborated.
Embodiment one:
The roller material: the steel alloy roller, diameter 600mm, work effective length 1990mm, the roller surface damage degree of depth is about 0.15-0.20mm;
Abrasive sand: 280
#, 320
#, 400
#, 600
#, 800
#, 1000
#, 1200
#
Oilstone: 280
#, 320
#, 400
#, 600
#, 800
#, 1000
#, 1200
#:
Wheelhead pressure: 1-1.5MPa;
Screw rod helical pitch: 6mm/ circle;
Lubricant: diesel oil.
Preparation: according to the size of calender two-side supporting plate, the floating mill apparatus that comprises bistrique (4) and drive unit is installed securely, is cleaned by grinding roller tube (1) surface comprehensively with clean diesel oil.
Processing step: 1. need the roller rotation of reconditioning in the independent startup calender, its linear velocity is elected 50 meters/minute, abrasive material 280# abrasive sand as, be evenly coated in roller (1) surface after abrasive sand mixed pasty state with diesel oil, oilstone is fixedly mounted on the bistrique (4), carefully put down bistrique (4), pressure is got 1MPa, start variable speed electric motors, particularly (15), bistrique (4) laterally translational speed changes in the scope that 170-210mm/ divides, the speed of every adjacent one way can not be identical, same one way speed can not change, to guarantee uniform stock removal.After the grinding 30 times, shutdown inspection has been ground to the roller face and has been damaged the trace bottom, and reached 280 so back and forth
#The grinding effect of abrasive material.
2. clean roller with diesel oil, be replaced with abrasive material 320
#, oilstone 320
#, other parameters are 1. constant by technology, after the grinding 42 times, shut down and observe whole roller face back and forth, have reached 320
#The grinding effect of abrasive material.
3. clean roller with diesel oil, be replaced with 400
#Abrasive sand, oilstone 400
#, 60 meters/minute of roller linear velocities, other parameters and operating procedure be by 1. constant, shuts down to observe after the grinding 40 times back and forth to reach 400
#The grinding effect of abrasive material at this moment, can change middle mill over to.
4. clean roller with diesel oil, be replaced with 600
#Abrasive sand, pressure changes 1.2MPa into, and bistrique (4) uses 600 instead
#Oilstone, roller linear velocity are 80 meters/minute, the adjustable range of the horizontal translational speed of bistrique: the 160-200mm/ branch, 1. other parameters and operating procedure carry out set by step, back and forth after the grinding 45 times, shut down to observe and reach 600
#The grinding effect of abrasive material.
5. clean roller with diesel oil, be replaced with 800
#Abrasive sand, 800
#Oilstone, roller linear velocity are 90 meters/minute, and other parameters and operating procedure be by 1. constant, after the grinding 50 times, shut down and observe the grinding effect that reaches the 800# abrasive material back and forth, change correct grinding then over to.
6. clean roller comprehensively, be replaced with the 1000# grounds travel, bistrique is loaded onto the 1000# oilstone, pressure changes 1.5MPa into, the roller linear velocity is 100 meters/minute, the adjustable range of the horizontal translational speed of bistrique: 150-190 mm/ branch, other parameters and operating procedure be with 1., reaches the surface roughness requirement of 0.8-0.4 back and forth after the grinding 100 times substantially.
Embodiment two:
The roller material: the steel alloy roller, diameter 500mm, length 1990mm, the roll surface lesion depths is about 0.20-0.25mm;
Abrasive sand: 280
#, 320
#, 400
#, 600
#, 800
#, 1000
#, 1200
#
Oilstone: 280
#, 320
#, 400
#, 600
#, 800
#, 1000
#, 1200
#
Wheelhead pressure: 0.8-1.2MPa;
Screw rod helical pitch: 8mm/ circle;
Lubricant: diesel oil.
Preparation: according to the size of calender two-side supporting plate, securely the floating mill apparatus comprise bistrique (4) and drive unit is installed, with the comprehensive cleaning of clean diesel oil by grinding roller tube (1) surface.
Processing step: 1. independent startup is ground 55 meters/minute of rolling mill roller linear velocities, abrasive material 280
#Abrasive sand, abrasive sand is mixed pasty state with diesel oil, be evenly coated in roller (1) surface, oilstone is fixedly mounted on the bistrique (4), carefully puts into bistrique, start variable speed electric motors, particularly (15), wheelhead pressure 0.9MPa, the scope speed change that the horizontal translational speed of bistrique (4) is divided at 165-195mm/, the speed of every adjacent stroke can not be identical, and one way speed can not change midway, to guarantee uniform stock removal.After the grinding 35 times, shutdown inspection has been ground to the bottom that the roller face is damaged trace, and reaches 280 so back and forth
#The grinding effect of abrasive material.
2. clean roller with diesel oil, be replaced with abrasive material 320
#, oilstone 320
#, other parameters are by 1. constant, after the grinding 42 times, shut down and observe whole roller face back and forth, have reached 320
#Change next step over to behind the grinding effect of abrasive material.
3. clean roller with diesel oil, change 400
#Abrasive sand, bistrique changes 400
#Oilstone, 65 meters/minute of roller linear velocities, other parameters and operating procedure be by 1. constant, back and forth after the grinding 46 times, changes next step over to after reaching the grinding effect of 400# abrasive material.
4. clean roller with diesel oil, change the 600# abrasive sand, pressure 1MPa, bistrique uses 600 instead
#Oilstone, 88 meters/minute of roller linear velocities, the adjustable range 155-185mm/ branch of the horizontal translational speed of bistrique, other parameters and operating procedure are 1. constant set by step, back and forth after the grinding 50 times, change next step over to after observing the grinding effect that reaches the 600# abrasive material.
5. clean roller with diesel oil, change 800
#Abrasive sand after the grinding 56 times, is shut down and is observed back and forth, reaches 800
#Change next step over to behind the grinding effect of abrasive material.
6. clean roller comprehensively, change the 1000# grounds travel, bistrique changes the 1000# oilstone, pressure 1.2MPa, 110 meters/minute of roller linear velocities, the horizontal translational speed scope of bistrique 100-140mm/ branch, it is 5. constant that other parameters and operating procedure connect step, reaches the surface roughness requirement of 0.8-0.4 back and forth after the grinding 106 times substantially.
Embodiment three:
Roller material: steel alloy roller, diameter 600mm, work effective length 1990mm, roller surface damage degree of depth 0.16-0.18mm;
Abrasive sand: 280
#, 320
#, 400
#, 600
#, 800
#, 1000
#, 1200
#
Oilstone: 280
#, 320
#, 400
#, 600
#, 800
#, 1000
#, 1200
#
Wheelhead pressure: 0.8-1MPa;
Screw rod helical pitch: 10mm/ circle;
Lubricant: diesel oil.
Preparation: according to calender two-side supporting board size, the floating mill apparatus that comprises bistrique (4) and drive unit is installed securely, is cleaned by grinding roller tube (1) surface comprehensively with clean diesel oil.
Processing step: 1. independent startup is ground rolling mill roller, and its linear speed is 30 meters/minute, abrasive material 280
#Abrasive sand is evenly coated in roller (1) surface after abrasive sand mixed pasty state with diesel oil, with 280
#Oilstone is fixedly mounted on the bistrique (4), carefully puts down bistrique, and pressure 1MPa starts variable speed electric motors, particularly (15), the scope internal speed-changing that the horizontal translational speed of bistrique (4) is divided at 70-180mm/.The speed of every adjacent one way can not be identical, and same one way speed can not change midway.To guarantee uniform stock removal, after the grinding 32 times, shut down and observe whole roller face so back and forth, be ground to the roller face and be damaged the trace bottom, and reached the grinding effect of 280# abrasive material.
2. clean roller with diesel oil, be replaced with 320
#Abrasive material, oilstone 320
#, other parameters and technology is by 1. constant, shuts down after the grinding 40 times back and forth and observes the roller face, reached 320
#Change the 3. step after the abrasive lapping effect over to.
3. clean roller with diesel oil, be replaced with 400
#Abrasive sand, bistrique is replaced with 400
#Oilstone, 40 meters/minute of roller linear velocities, other parameters and technology be by 1. constant, after the grinding 43 times, checks that the roller face reaches 400 back and forth
#The grinding effect of abrasive material promptly changes the 4. step over to.
4. clean roller with diesel oil, be replaced with 600
#Abrasive sand, pressure 0.9MPa, bistrique is replaced with 600
#Oilstone, 55 meters/minute of roller linear velocities, the adjustable range 85-145mm/ branch of the horizontal translational speed of bistrique, other parameters and technology is by 1. constant, back and forth after the grinding 48 times, shuts down and observes the roller face and reach 600
#The grinding effect of abrasive material can change the 5. step over to.
5. clean roller with diesel oil, be replaced with 800
#Abrasive sand, bistrique is replaced with 800
#Oilstone, 75 meters/minute of roller linear velocities, other parameters and technology be by 1. constant, and after the grinding 53 times, shutdown inspection roller face reaches 800 back and forth
#Can change the 6. step after the abrasive lapping effect over to.
6. clean up roller comprehensively, be replaced with 1000
#Grounds travel, bistrique is replaced with 1000
#Oilstone, pressure 0.8MPa, 85 meters/minute of roller linear velocities, the adjustable range of the horizontal translational speed of bistrique are the 90-130mm/ branch, other parameters and technology is by 1. constant, reaches the surface roughness requirement of 0.8-0.4 back and forth after the grinding 110 times substantially.
Claims (1)
1, a kind of method that adopts floating mill apparatus reconditioning roller face on this machine of rubber and plastic calender is characterized in that:
(1) grinding process parameters is:
Grinding tool: oilstone bar;
Abrasive sand: 280
#-1200
#
Lubricant: diesel oil;
Roller linear velocity: 30 meters/minute-110 meters/minute;
Wheelhead pressure: 0.8Mpa-1.5Mpa;
Screw rod helical pitch: 6-10 millimeter/circle;
The horizontal translational speed of bistrique: the 70-210 millimeter/minute.
(2) processing step:
1. select 280 for use
#-480
#Abrasive sand, screw rod helical pitch are 6-10 millimeter/circle, the roller linear velocity be 30-80 rice/minute, wheelhead pressure is 1-1.5Mpa, bistrique laterally grinds back and forth, to roller face only surplus 280
#-480
#The mill line, process of lapping is lubricated and cooling with diesel oil cleaning;
2. select 600 for use
#-800
#Abrasive sand, screw rod helical pitch are 6-10 millimeter/circle, the roller linear velocity be 40-90 rice/minute, wheelhead pressure is 0.8-1Mpa, bistrique laterally is ground to roller face only surplus 600 back and forth
#-800
#The mill line, process of lapping is lubricated and cooling with diesel oil cleaning.
3. select 800 for use
#-1200
#Abrasive sand, screw rod helical pitch are 6-10 millimeter/circle, the roller linear velocity be 50-110 rice/minute, wheelhead pressure is 1-1.5Mpa, bistrique laterally is ground to the roller face back and forth and reaches till the desired fineness.
(3) process:
Laterally back and forth in the process of lapping, the horizontal translational speed of the bistrique of each one way is constant speed to bistrique; The horizontal translational speed of bistrique of every adjacent two one way is different and do conversion brokenly in the horizontal translational speed scope of bistrique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95100851A CN1060986C (en) | 1995-02-23 | 1995-02-23 | Method of in-situ grinding rubber-plastic calendar roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95100851A CN1060986C (en) | 1995-02-23 | 1995-02-23 | Method of in-situ grinding rubber-plastic calendar roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1111183A CN1111183A (en) | 1995-11-08 |
| CN1060986C true CN1060986C (en) | 2001-01-24 |
Family
ID=5073645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95100851A Expired - Fee Related CN1060986C (en) | 1995-02-23 | 1995-02-23 | Method of in-situ grinding rubber-plastic calendar roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1060986C (en) |
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| CN102689243A (en) * | 2012-06-13 | 2012-09-26 | 鞍钢股份有限公司 | Method for grinding furnace roller |
| CN103231289B (en) * | 2013-05-21 | 2015-10-07 | 唐山瑞丰钢铁（集团）有限公司 | Control the method for grinding of different roll surface roughness |
| CN103551938A (en) * | 2013-11-18 | 2014-02-05 | 攀枝花钢城集团铁路设备修造有限公司 | Coping process of coating roller |
| CN105215791A (en) * | 2014-06-27 | 2016-01-06 | 张红超 | Minute surface Roller Machining method and utilize the method for this minute surface Roller Machining minute surface aluminium sheet |
| CN108608312A (en) * | 2018-04-08 | 2018-10-02 | 佛山市稳格家居用品有限公司 | A method of heat grinding calendering wheel in grinding mechanism and line |
| CN110871230B (en) * | 2019-11-28 | 2021-05-25 | 佛山市三水区达昆不锈钢有限公司 | Calendering device for steel plate processing |
| CN110871231B (en) * | 2019-11-28 | 2021-01-22 | 威海永旺不锈钢制品有限公司 | Working method of rolling device for steel plate processing |
| CN112872931B (en) * | 2021-01-28 | 2022-10-28 | 南通合盛制辊有限公司 | Double-wheel high-precision grinding machine applied to roller manufacturing |
| CN114473646A (en) * | 2022-02-22 | 2022-05-13 | 上海联净电子科技有限公司 | Heating roller hot grinding process and equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156508A (en) * | 1983-02-24 | 1984-09-05 | Mitsubishi Heavy Ind Ltd | Inline grinding method of roll of rolling mill |
| JPS6188906A (en) * | 1984-10-05 | 1986-05-07 | Sumitomo Metal Ind Ltd | Grinding method of roll |
| US4841675A (en) * | 1988-05-13 | 1989-06-27 | Perneczky George C | Apparatus for cleaning and polishing roll assemblies |
| JPH02243256A (en) * | 1989-03-13 | 1990-09-27 | Shinsei Sangyo Kk | Regrinding device for roll surface |
| JPH03149165A (en) * | 1989-10-30 | 1991-06-25 | Ishikawajima Harima Heavy Ind Co Ltd | Roll polishing device |
-
1995
- 1995-02-23 CN CN95100851A patent/CN1060986C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156508A (en) * | 1983-02-24 | 1984-09-05 | Mitsubishi Heavy Ind Ltd | Inline grinding method of roll of rolling mill |
| JPS6188906A (en) * | 1984-10-05 | 1986-05-07 | Sumitomo Metal Ind Ltd | Grinding method of roll |
| US4841675A (en) * | 1988-05-13 | 1989-06-27 | Perneczky George C | Apparatus for cleaning and polishing roll assemblies |
| JPH02243256A (en) * | 1989-03-13 | 1990-09-27 | Shinsei Sangyo Kk | Regrinding device for roll surface |
| JPH03149165A (en) * | 1989-10-30 | 1991-06-25 | Ishikawajima Harima Heavy Ind Co Ltd | Roll polishing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1111183A (en) | 1995-11-08 |
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