CN111015374A - Efficient steel billet grinding process - Google Patents
Efficient steel billet grinding process Download PDFInfo
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- CN111015374A CN111015374A CN201911250950.9A CN201911250950A CN111015374A CN 111015374 A CN111015374 A CN 111015374A CN 201911250950 A CN201911250950 A CN 201911250950A CN 111015374 A CN111015374 A CN 111015374A
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- grinding
- steel billet
- billet
- grinding wheel
- steel
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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
Abstract
The invention relates to the technical field of steel rolling in the ferrous metallurgy industry, in particular to a high-efficiency steel billet grinding process, which comprises the following steps of: feeding, making a grinding process, grinding for the first time and grinding for the second time: according to the efficient billet grinding process, when the first grinding is carried out, the transverse feeding stroke of the grinding wheel grinding head is kept unchanged, the number of grinding processes is reduced as much as possible, and when the second grinding is carried out, the transverse feeding stroke of the grinding wheel grinding head used in the first grinding process and the last grinding process is modified to be half of the transverse feeding stroke of the grinding wheel grinding head used in the first grinding, so that the grinding dead corners of the two grinding processes are staggered, the grinding dead corners of the first grinding process are covered, the to-be-ground surfaces of the billet can be completely ground, the billet can be completely ground only by grinding twice, the billet grinding yield is greatly improved, the consumption of the grinding wheel is reduced, the production cost is greatly saved, and the market competitiveness is improved.
Description
Technical Field
The invention relates to the technical field of steel rolling in the ferrous metallurgy industry, in particular to a high-efficiency grinding process for a steel billet.
Background
The billet is a product obtained by casting molten steel smelted by a steelmaking furnace, is usually square and is also called as square billet, the billet on the market is generally a continuous casting billet at present, and after the billet is cast and formed by a continuous casting machine, the surface of the billet has the defects of subcutaneous bubbles, shrinkage cavities, cracks, scabs and the like, so the defect on the surface of the billet needs to be removed by grinding through a grinding machine;
with the development of high-grade and special steel rods and wires, the steel products have more and more extensive applications and higher requirements of customers on special steel, the transverse feeding stroke of a grinding wheel grinding head is consistent when the steel billets are ground on a grinding machine at present, taking the width of the steel billet as 160mm as an example, the transverse feeding stroke of the grinding wheel head is fixed at 16mm, namely, 10 grinding processes are needed for the grinding wheel head on each surface of the steel billet, each grinding process and 10 grinding processes are called to grind once, in order to reduce the number of coping processes as much as possible and avoid overlapped processing parts among the coping processes, however, in the actual production process, a dead angle (a part which is not repaired) is found between two adjacent repair and repair processes, so that the surface of the steel billet is difficult to repair and repair, the defect can be thoroughly cleaned by more than three times of polishing, the consumed time is long, the repair and repair yield is difficult to exert, and the production of special steel bar wires is greatly restricted.
Therefore, how to reduce the grinding times and improve the productivity on the premise of reducing the number of grinding processes as much as possible is a technical problem that needs to be solved by the technicians in the field urgently.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the efficient steel billet grinding process is characterized in that the transverse feeding stroke of a grinding wheel grinding head is consistent when a steel billet is ground on a grinding machine in the prior art, so that dead corners exist between two adjacent grinding processes easily, the surface of the steel billet is difficult to grind completely, the defects can be thoroughly cleaned through more than three times of grinding, the consumed time is long, and the grinding yield is low.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-efficiency steel billet grinding process comprises the following steps:
step a, feeding: selecting one side surface of a square steel blank as a surface to be repaired, and placing the square steel blank on a repairing machine to enable the surface to be repaired of the steel blank to be opposite to a grinding wheel grinding head of the repairing machine;
step b, formulating a coping process: setting the width of the current surface to be polished of the steel billet to be N millimeters, and dividing the surface to be polished of the steel billet into N polishing processes along the width direction of the surface to be polished, wherein after the transverse feeding stroke of a grinding wheel grinding head relative to the surface to be polished of the steel billet is set, the polishing machine enables the steel billet to pass through the grinding wheel grinding head along the length direction of the surface to be polished of the steel billet for one polishing process, and the transverse feeding direction of the grinding wheel grinding head is the width direction of the surface to be polished;
step 3), grinding for the first time: starting the sharpening machine, and sequentially finishing N sharpening processes along the width direction of the surface to be sharpened of the steel billet, wherein the transverse feed stroke of a grinding wheel grinding head of each sharpening process relative to the surface to be sharpened of the steel billet is N/N millimeters;
step 4), grinding for the second time: starting the sharpening machine, and sequentially finishing N +1 sharpening processes along the width direction of the surface to be sharpened of the steel billet, wherein in the step, the transverse feeding strokes of the grinding wheel grinding heads of the first sharpening process and the last sharpening process relative to the surface to be sharpened of the steel billet are both N/2N millimeters, and the transverse feeding strokes of the grinding wheel grinding heads of the other sharpening processes relative to the surface to be sharpened of the steel billet are both N/N millimeters.
Further, the cross section of the billet is square, and the length of the side of the square is 160 mm;
equally dividing the surface to be repaired of the billet into 10 coping processes along the width direction of the billet;
in the step 3, 10 grinding processes are sequentially completed along the width direction of the surface to be ground of the steel billet, and the transverse feeding stroke of a grinding wheel grinding head of each grinding process relative to the surface to be ground of the steel billet is 16 mm;
in the step 4, the transverse feeding strokes of the grinding wheel grinding heads of the first grinding procedure and the last grinding procedure relative to the to-be-ground surface of the steel billet are 8 mm, and the transverse feeding strokes of the grinding wheel grinding heads of the other grinding procedures relative to the to-be-ground surface of the steel billet are 16 mm.
The invention has the beneficial effects that: according to the efficient billet grinding process, when the first grinding is carried out, the transverse feeding stroke of the grinding wheel grinding head is kept unchanged, the number of grinding processes is reduced as much as possible, and when the second grinding is carried out, the transverse feeding stroke of the grinding wheel grinding head used in the first grinding process and the last grinding process is modified to be half of the transverse feeding stroke of the grinding wheel grinding head used in the first grinding, so that the grinding dead corners of the two grinding processes are staggered, the grinding dead corners of the first grinding process are covered, the to-be-ground surfaces of the billet can be completely ground, the billet can be completely ground only by grinding twice, the billet grinding yield is greatly improved, the consumption of the grinding wheel is reduced, the production cost is greatly saved, and the market competitiveness is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the efficient steel billet coping process of the invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1, a high-efficiency steel billet coping process comprises the following steps:
step a, feeding: selecting one side surface of a square steel blank as a surface to be repaired, and placing the square steel blank on a repairing machine to enable the surface to be repaired of the steel blank to be opposite to a grinding wheel grinding head of the repairing machine;
step b, formulating a coping process: setting the width of the current surface to be polished of the steel billet to be N millimeters, and dividing the surface to be polished of the steel billet into N polishing processes along the width direction of the surface to be polished, wherein after the transverse feeding stroke of a grinding wheel grinding head relative to the surface to be polished of the steel billet is set, the polishing machine enables the steel billet to pass through the grinding wheel grinding head along the length direction of the surface to be polished of the steel billet for one polishing process, and the transverse feeding direction of the grinding wheel grinding head is the width direction of the surface to be polished;
step 3), grinding for the first time: starting the sharpening machine, and sequentially finishing N sharpening processes along the width direction of the surface to be sharpened of the steel billet, wherein the transverse feed stroke of a grinding wheel grinding head of each sharpening process relative to the surface to be sharpened of the steel billet is N/N millimeters;
step 4), grinding for the second time: starting the sharpening machine, and sequentially finishing N +1 sharpening processes along the width direction of the surface to be sharpened of the steel billet, wherein in the step, the transverse feeding strokes of the grinding wheel grinding heads of the first sharpening process and the last sharpening process relative to the surface to be sharpened of the steel billet are both N/2N millimeters, and the transverse feeding strokes of the grinding wheel grinding heads of the other sharpening processes relative to the surface to be sharpened of the steel billet are both N/N millimeters.
In this embodiment, the cross section of the billet is square, and the length of the side of the square is 160mm as an example;
during the first grinding, the surface to be ground of the steel billet is equally divided into 10 grinding processes along the width direction, initially, the transverse feeding stroke of a grinding wheel grinding head of each grinding process relative to the surface to be ground of the steel billet is 16mm during grinding, the steel billet is fed along the length direction of the surface to be ground of the steel billet during grinding, a grinding path, namely a polished long strip-shaped surface, is left on the surface to be ground of the steel billet by the grinding wheel grinding head rotating at a high speed, the grinding paths during the first grinding are sequentially arranged along the width direction of the surface to be ground, the grinding paths are mutually not overlapped, and dead corners easily exist between every two adjacent grinding paths;
during the first grinding, the grinding wheel head feeds 16mm in the width direction of the surface to be ground of the steel billet, and a first grinding process is carried out after the first grinding process is finished; feeding the grinding wheel grinding head by 16mm along the width direction of the surface to be ground of the steel billet, and carrying out a second grinding process after the second grinding process is finished; the grinding wheel grinding head continues to feed 16mm along the width direction of the surface to be ground of the steel billet, a third grinding process is carried out, and the like, so that all subsequent grinding processes are completed;
during the second grinding, the surface to be ground of the steel billet is divided into 11 grinding processes along the width direction, the transverse feeding strokes of the grinding wheel grinding head of the first grinding process and the grinding wheel grinding head of the eleventh grinding process relative to the surface to be ground of the steel billet are 8 mm during the grinding, the transverse feeding travel of the grinding wheel grinding head of the rest grinding processes relative to the surface to be ground of the steel billet is 16mm, when grinding, the billet is fed along the length direction of the surface to be polished, a grinding wheel head rotating at a high speed leaves a polishing path on the surface to be polished of the billet, the polishing paths during the second polishing are sequentially arranged along the width direction of the surface to be polished and have no overlapping part, but dead angles are easy to exist between two adjacent polishing paths, the dead angle of the two-time grinding is staggered, so that the grinding dead angle can be covered, the steel billet can be completely ground only by two times of grinding, and the grinding efficiency is improved;
during the second grinding, the grinding wheel grinding head feeds 8 mm in the width direction of the surface to be ground of the steel billet to perform a first grinding process, and the first grinding process is finished; feeding the grinding wheel grinding head by 16mm along the width direction of the surface to be ground of the steel billet, and carrying out a second grinding process after the second grinding process is finished; and (4) continuously feeding the grinding wheel grinding head by 16mm along the width direction of the surface to be ground of the steel billet, and performing a third grinding process, and so on to finish all subsequent grinding processes.
The transverse feeding strokes of the grinding wheel grinding heads of the first coping procedure and the last coping procedure relative to the to-be-grinded surface of the steel billet are 8 mm, and the transverse feeding strokes of the grinding wheel grinding heads of the other coping procedures relative to the to-be-grinded surface of the steel billet are 16 mm.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A high-efficiency steel billet grinding process is characterized by comprising the following steps: the method comprises the following steps:
step a, feeding: selecting one side surface of a square steel blank as a surface to be repaired, and placing the square steel blank on a repairing machine to enable the surface to be repaired of the steel blank to be opposite to a grinding wheel grinding head of the repairing machine;
step b, formulating a coping process: setting the width of the current surface to be polished of the steel billet to be N millimeters, and dividing the surface to be polished of the steel billet into N polishing processes along the width direction of the surface to be polished, wherein after the transverse feeding stroke of a grinding wheel grinding head relative to the surface to be polished of the steel billet is set, the polishing machine enables the steel billet to pass through the grinding wheel grinding head along the length direction of the surface to be polished of the steel billet for one polishing process, and the transverse feeding direction of the grinding wheel grinding head is the width direction of the surface to be polished;
step 3), grinding for the first time: starting the sharpening machine, and sequentially finishing N sharpening processes along the width direction of the surface to be sharpened of the steel billet, wherein the transverse feed stroke of a grinding wheel grinding head of each sharpening process relative to the surface to be sharpened of the steel billet is N/N millimeters;
step 4), grinding for the second time: starting the sharpening machine, and sequentially finishing N +1 sharpening processes along the width direction of the surface to be sharpened of the steel billet, wherein in the step, the transverse feeding strokes of the grinding wheel grinding heads of the first sharpening process and the last sharpening process relative to the surface to be sharpened of the steel billet are both N/2N millimeters, and the transverse feeding strokes of the grinding wheel grinding heads of the other sharpening processes relative to the surface to be sharpened of the steel billet are both N/N millimeters.
2. The efficient steel billet coping process according to claim 1, wherein: the cross section of the billet is square, and the length of the side of the square is 160 mm;
equally dividing the surface to be repaired of the billet into 10 coping processes along the width direction of the billet;
in the step 3, 10 grinding processes are sequentially completed along the width direction of the surface to be ground of the steel billet, and the transverse feeding stroke of a grinding wheel grinding head of each grinding process relative to the surface to be ground of the steel billet is 16 mm;
in the step 4, the transverse feeding strokes of the grinding wheel grinding heads of the first grinding procedure and the last grinding procedure relative to the to-be-ground surface of the steel billet are 8 mm, and the transverse feeding strokes of the grinding wheel grinding heads of the other grinding procedures relative to the to-be-ground surface of the steel billet are 16 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911250950.9A CN111015374A (en) | 2019-12-09 | 2019-12-09 | Efficient steel billet grinding process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911250950.9A CN111015374A (en) | 2019-12-09 | 2019-12-09 | Efficient steel billet grinding process |
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| CN111015374A true CN111015374A (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604825A (en) * | 2020-04-30 | 2020-09-01 | 张家港宏昌钢板有限公司 | Use method of polishing grinding wheel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100327A (en) * | 1985-04-01 | 1986-06-10 | 东北工学院 | Steel ingot (base) rotation grinding method and rotary polisher |
| CN2047204U (en) * | 1989-02-25 | 1989-11-08 | 北京市冶金设备自动化研究所 | Steel billet dressing grinder |
| US20060116052A1 (en) * | 2004-11-29 | 2006-06-01 | Toyoda Koki Kabushiki Kaisha | Workpiece grinding method |
| FR2955280A1 (en) * | 2010-01-15 | 2011-07-22 | Jean-Luc Pelizzari | Method for preparing circumferential surface of cylindrical grinding stone to machine soles of e.g. ski during practice of ski touring, involves modifying net bottom width by small side displacement to obtain shifted overlapping net |
| CN108372432A (en) * | 2018-02-13 | 2018-08-07 | 钦州学院 | Plate surface micro-nanoization machinery is multiple to grind method of rubbing |
| CN109015124A (en) * | 2018-09-28 | 2018-12-18 | 邢台钢铁有限责任公司 | A kind of method of billet surface reconditioning |
| CN109158960A (en) * | 2018-09-30 | 2019-01-08 | 江苏省沙钢钢铁研究院有限公司 | A kind of grinding method improving big specification spring surface quality of billet |
-
2019
- 2019-12-09 CN CN201911250950.9A patent/CN111015374A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100327A (en) * | 1985-04-01 | 1986-06-10 | 东北工学院 | Steel ingot (base) rotation grinding method and rotary polisher |
| CN2047204U (en) * | 1989-02-25 | 1989-11-08 | 北京市冶金设备自动化研究所 | Steel billet dressing grinder |
| US20060116052A1 (en) * | 2004-11-29 | 2006-06-01 | Toyoda Koki Kabushiki Kaisha | Workpiece grinding method |
| FR2955280A1 (en) * | 2010-01-15 | 2011-07-22 | Jean-Luc Pelizzari | Method for preparing circumferential surface of cylindrical grinding stone to machine soles of e.g. ski during practice of ski touring, involves modifying net bottom width by small side displacement to obtain shifted overlapping net |
| CN108372432A (en) * | 2018-02-13 | 2018-08-07 | 钦州学院 | Plate surface micro-nanoization machinery is multiple to grind method of rubbing |
| CN109015124A (en) * | 2018-09-28 | 2018-12-18 | 邢台钢铁有限责任公司 | A kind of method of billet surface reconditioning |
| CN109158960A (en) * | 2018-09-30 | 2019-01-08 | 江苏省沙钢钢铁研究院有限公司 | A kind of grinding method improving big specification spring surface quality of billet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604825A (en) * | 2020-04-30 | 2020-09-01 | 张家港宏昌钢板有限公司 | Use method of polishing grinding wheel |
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Application publication date: 20200417 |