CN106670898B - Roller surface current step-down formula grinding process - Google Patents
Roller surface current step-down formula grinding process Download PDFInfo
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- CN106670898B CN106670898B CN201710015295.3A CN201710015295A CN106670898B CN 106670898 B CN106670898 B CN 106670898B CN 201710015295 A CN201710015295 A CN 201710015295A CN 106670898 B CN106670898 B CN 106670898B
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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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention belongs to steel grinding technique fields, and in particular to roller surface current step-down formula grinding process；A kind of roller surface current step-down formula grinding process, it is characterized in that, the technique successively includes two steps of corase grinding and fine grinding: (1) roughly grind: grinding current control is in 40~50A, 35~45m/s of grinding speed, 30~40r/min of head frame revolution, big carriage speeds 2~3m/min, 40~50A of electric current；(2) refine: the more previous passage of electric current of the grinding method gradually to successively decrease using grinding electric current, i.e. each grinding passage is reduced by about 5A, is always divided into five passages, until whole grinding process terminate when grinding electric current reaches 15~20A；It solves in traditional grinding process, roll after grinding is easy to appear some common defects such as spiral lamination, scratch, chatter mark.
Description
Technical field
The invention belongs to steel grinding technique fields, and in particular to roller surface current step-down formula grinding process.
Background technique
Benxi steel plant He Kelizi grinding machine comes into operation for 96 years, has run close to 20 years, during which do not had it is mechanical and
The transformation of electrical system, ageing equipment is serious, runs and its unstable, chatter mark often occurs, the grinding of spiral lamination surface quality lacks
It falls into；Phenomena such as production domesticization of grinding wheel used in grinding machine, production domesticization grinding wheel is uneven there are hardness, has aggravated spiral lamination, chatter mark occurs
Risk；Grinding machine 20 years of operation comes, and method for grinding continues to use always H included grinding programs and process, has been unable to satisfy
Increasing grinding quality requirement.
Summary of the invention
In view of the above-mentioned problems, after grinding to roll the invention aims to solve in traditional grinding process at present
Roller is easy to appear some common defects such as spiral lamination, scratch, chatter mark.
New method for grinding, abandoned it is traditional grinding process is divided into three big step ways, but will all be ground
Journey is divided into two parts, it may be assumed that fine grinding two parts that high current, efficient corase grinding and grinding electric current gradually successively decrease.
In the corase grinding of first part, grinding effect can should be sufficiently improved in this way by grinding current control in 40~50A
Rate.
In the fine grinding of second part, using the grinding method that gradually successively decreases of grinding electric current.That is each grinding passage
The more previous passage of electric current be reduced by about 5A, until grinding electric current is when reaching 15~20A, whole grinding process terminate.
The technique the following steps are included:
(1) roughly grind: grinding current control is in 40~50A, 35~45m/s of grinding speed, 30~40r/ of head frame revolution
Min, big 2~3m/min of carriage speeds, 40~50A of electric current；
(2) refine: the electric current of the grinding method gradually to successively decrease using grinding electric current, i.e. each grinding passage is more previous
A passage is reduced by about 5A, is always divided into five passages, for 1~5 passage of fine grinding of successively decreasing, until when grinding electric current reaches 15~20A,
Whole grinding process terminate,
1 passage of fine grinding of successively decreasing: 30~40m/s of grinding speed, head 30~40r/min of frame revolution, big carriage speeds
1.5~2.5m/min, 35~40A of electric current.
2 passages of fine grinding of successively decreasing: 25~35m/s of grinding speed, 20~30r/min of head frame revolution, big carriage speeds 1
~2m/min, 30~35A of electric current.
3 passages of fine grinding of successively decreasing: 25~35m/s of grinding speed, head 20~30r/min of frame revolution, big carriage speeds
0.5~1m/min, 25~30A of electric current.
4 passages of fine grinding of successively decreasing: 20~25m/s of grinding speed, head 20~30r/min of frame revolution, big carriage speeds
0.5~1m/min, 20~25A of electric current.
5 passages of fine grinding of successively decreasing: 20~25m/s of grinding speed, head 10~15r/min of frame revolution, big carriage speeds
0.3m/min, 15~20A of electric current draw greatly the selection of frame speed in 300mm/min or so.
Grinding parameter in the present invention is suitable for the grinding that final roll surface roughness is Ra (0.6~1.2 μm)；
Using current step-down grinding process, grinding process is changed by three sections of original corase grinding, half fine grinding, fine grinding grinding process
To roughly grind, refining two sections of grinding process.
In 5 passages of fine grinding, electric current is ground by the first passage 35-40 and is decremented to the 5th passage 15-20,
In the 5th passage of fine grinding of successively decreasing, the revolution selection of roll draws greatly the selection of frame speed and exists in 10~15r/min
300mm/min or so.
Detailed description of the invention
With reference to the accompanying drawing and embodiment the present invention is described in further detail:
Fig. 1 is traditional grinding process coordinate diagram；
Fig. 2 is improved grinding process coordinate diagram in the present invention.
Specific embodiment
Embodiment 1
Firstly, being abscissa by grinding process, grinding electric current is ordinate, then, after tradition grinding can be drawn and improved
Grinding electric current --- grinding process coordinate diagram:
Tradition completes the grinding of roll using corase grinding, half fine grinding, three big steps of fine grinding, the grinding work of this three big step
Skill parameter list is as follows:
| Grinding speed m/s | Roll revolution m/r | Big balladeur train feeds mm/min | |
| Corase grinding | 33~35 | 30~35 | 2500 or so |
| Half refines | 25~30 | 35~40 | 1500 or so |
| Fine grinding | 20~25 | 40~50 | 800 or so |
Successively decrease after improvement grinding specific steps are as follows:
(1) roughly grind: grinding current control is in 40A, grinding speed 35m/s, head frame revolution 30r/min, big carriage speeds 2
~3m/min, 40~50A of electric current；
(2) it refines: 1 passage of fine grinding of successively decreasing: grinding speed 30m/s, head frame revolution 30r/min, big carriage speeds 1.5m/
Min, electric current 35A；
Successively decrease 2 passages of fine grinding: grinding speed 25m/s, head frame revolution 20r/min, big carriage speeds 1m/min, electric current
30A；
Successively decrease 3 passages of fine grinding: grinding speed 25m/s, head frame revolution 20r/min, big carriage speeds 0.5m/min, electric current
25A；
Successively decrease 4 passages of fine grinding: grinding speed 20m/s, head frame revolution 20r/min, big carriage speeds 0.5m/min, electric current
20A；
Successively decrease 5 passages of fine grinding: grinding speed 20m/s, head frame revolution 10r/min, big carriage speeds 0.3m/min, electric current
15A draws greatly the selection of frame speed in 300mm/min.
From Fig. 1,2 as can be seen that conventional grinding is a step-like grinding curve, such curve has isolated process
Continuity.In addition, from process quality relevance principle it is known that traditional method for grinding of this voltage dip is not easy to eliminate slightly
The polishing scratch of (or preceding a time) when mill is unfavorable for improving the surface quality of roll, and in improved method for grinding, it is ground electric current
The associated process ring ring that uniformly successively decreases connects, and such method for grinding can preferably eliminate the scuffing and spiral lamination when grinding, from
And be conducive to improve the grinding quality of roll.
Secondly, big carriage speeds, roll revolution are minimum in the last one passage for grinding of successively decreasing, especially roll turns
Number is in 10~15r/min, and the limit of roll revolution, extremely low roll revolution can mention to the maximum extent when breaching tradition fine grinding
The stability of high lathe, roll occur a possibility that chatter mark fall below it is minimum.
By to the modification of grinding process, making roll dressing quality improve above, not only reducing roll
There is the loss that Grinding defects repeat electric energy caused by being ground, while reducing the consumption of grinding auxiliary material, every year may be used by measuring and calculating
Reduce grinding 73 Wan Yuyuan of cost.
Embodiment 2
(1) roughly grind: grinding current control is in 50A, grinding speed 45m/s, head frame revolution 40r/min, big carriage speeds
3m/min, electric current 50A；
(2) it refines: 1 passage of fine grinding of successively decreasing: grinding speed 40m/s, head frame revolution 40r/min, big carriage speeds 2.5m/
Min, electric current 40A；
Successively decrease and refines 2 passages: grinding speed 35m/s, head frame revolution 30r/min, big 1~2m/min of carriage speeds, electricity
Flow 35A；
Successively decrease 3 passages of fine grinding: grinding speed 35m/s, head frame revolution 30r/min, big carriage speeds 1m/min, electric current
30A；
Successively decrease 4 passages of fine grinding: grinding speed 25m/s, head frame revolution 30r/min, big carriage speeds 1m/min, electric current
25A；
Successively decrease 5 passages of fine grinding: grinding speed 25m/s, head frame revolution 15r/min, big carriage speeds 0.3m/min, electric current
20A draws greatly the selection of frame speed in 300mm/min.
Embodiment 3
(1) roughly grind: grinding current control is in 45A, grinding speed 40m/s, head frame revolution 35r/min, big carriage speeds
2m/min, electric current 45A；
(2) it refines: 1 passage of fine grinding of successively decreasing: 30~40m/s of grinding speed, head 30~40r/min of frame revolution, big balladeur train
1.5~2.5m/min of speed, electric current 38A；
Successively decrease 2 passages of fine grinding: 25~35m/s of grinding speed, head frame revolution 20~30r/min, big carriage speeds 1~
2m/min, electric current 33A；
Successively decrease 3 passages of fine grinding: 25~35m/s of grinding speed, head frame revolution 20~30r/min, big carriage speeds 0.5~
1m/min, electric current 28A；
Successively decrease 4 passages of fine grinding: 20~25m/s of grinding speed, head frame revolution 20~30r/min, big carriage speeds 0.5~
1m/min, electric current 23A；
Successively decrease and refines 5 passages: 20~25m/s of grinding speed, head frame revolution 10~15r/min, big carriage speeds 0.3m/
Min, electric current 18A draw greatly the selection of frame speed in 300mm/min.
Claims (1)
1. a kind of roller surface current step-down formula grinding process, which is characterized in that the technique successively includes two steps of corase grinding and fine grinding:
(1) roughly grind: grinding current control is in 40~50A, 35~45m/s of grinding speed, head frame 30~40r/min of revolution, greatly
2~3m/min of carriage speeds；
(2) it refines: the grinding method gradually to successively decrease using grinding electric current, the i.e. more previous road of electric current of each grinding passage
It is secondary to be reduced by about 5A, five passages are always divided into, until whole grinding process terminate when grinding electric current reaches 15~20A；
Successively decrease 1 passage of fine grinding: 30~40m/s of grinding speed, head frame revolution 30~40r/min, big carriage speeds 1.5~
2.5m/min, 35~40A of electric current；
Successively decrease and refines 2 passages: 25~35m/s of grinding speed, head frame revolution 20~30r/min, big 1~2m/ of carriage speeds
Min, 30~35A of electric current；
Successively decrease and refines 3 passages: 25~35m/s of grinding speed, head frame revolution 20~30r/min, big 0.5~1m/ of carriage speeds
Min, 25~30A of electric current；
Successively decrease and refines 4 passages: 20~25m/s of grinding speed, head frame revolution 20~30r/min, big 0.5~1m/ of carriage speeds
Min, 20~25A of electric current；
Successively decrease and refine 5 passages: 20~25m/s of grinding speed, head frame revolution 10~15r/min, big carriage speeds 0.3m/min,
15~20A of electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015295.3A CN106670898B (en) | 2017-01-10 | 2017-01-10 | Roller surface current step-down formula grinding process |
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|---|---|---|---|
| CN201710015295.3A CN106670898B (en) | 2017-01-10 | 2017-01-10 | Roller surface current step-down formula grinding process |
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| CN106670898A CN106670898A (en) | 2017-05-17 |
| CN106670898B true CN106670898B (en) | 2019-04-19 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788941B (en) * | 2018-07-06 | 2020-10-02 | 攀钢集团西昌钢钒有限公司 | Grinding method of CVC roller |
| CN109794810B (en) * | 2018-10-24 | 2021-11-19 | 首钢京唐钢铁联合有限责任公司 | Method for removing surface defects of roller |
| CN109440143A (en) * | 2018-12-26 | 2019-03-08 | 江苏科茂新材料科技有限公司 | Mirror surface ironworking technique |
| CN110193759B (en) * | 2019-05-13 | 2021-01-15 | 本钢板材股份有限公司 | High-precision cold roll grinding control method |
| CN113305649B (en) * | 2021-06-17 | 2023-02-03 | 广东韶钢松山股份有限公司 | Grinding method of high-strength tool steel roller for medium plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB118857A (en) * | 1917-04-05 | 1918-09-19 | William Emil Bock | Improvements in and relating to Machines for Grinding the Rollers of Roller Bearings, and like Articles. |
| CN101623848A (en) * | 2009-07-31 | 2010-01-13 | 哈尔滨工业大学 | Trimming method of metal-based diamond ball-end grinding wheel with minor diameter |
| CN102689243A (en) * | 2012-06-13 | 2012-09-26 | 鞍钢股份有限公司 | Method for grinding furnace roller |
| CN103128642A (en) * | 2011-11-29 | 2013-06-05 | 广州市珠峰电气有限公司 | Tile polishing machine and dedicated automatic-control electricity saving system |
| CN103231289A (en) * | 2013-05-21 | 2013-08-07 | 唐山瑞丰钢铁（集团）有限公司 | Grinding method for controlling roughness of surfaces of different rollers |
| CN105729260A (en) * | 2014-12-09 | 2016-07-06 | 重庆市金升机械配件制造有限公司 | Roller grinding process |
-
2017
- 2017-01-10 CN CN201710015295.3A patent/CN106670898B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB118857A (en) * | 1917-04-05 | 1918-09-19 | William Emil Bock | Improvements in and relating to Machines for Grinding the Rollers of Roller Bearings, and like Articles. |
| CN101623848A (en) * | 2009-07-31 | 2010-01-13 | 哈尔滨工业大学 | Trimming method of metal-based diamond ball-end grinding wheel with minor diameter |
| CN103128642A (en) * | 2011-11-29 | 2013-06-05 | 广州市珠峰电气有限公司 | Tile polishing machine and dedicated automatic-control electricity saving system |
| CN102689243A (en) * | 2012-06-13 | 2012-09-26 | 鞍钢股份有限公司 | Method for grinding furnace roller |
| CN103231289A (en) * | 2013-05-21 | 2013-08-07 | 唐山瑞丰钢铁（集团）有限公司 | Grinding method for controlling roughness of surfaces of different rollers |
| CN105729260A (en) * | 2014-12-09 | 2016-07-06 | 重庆市金升机械配件制造有限公司 | Roller grinding process |
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