CN113877967B - Hole pattern sleeve preparation method for reducing roller consumption - Google Patents
Hole pattern sleeve preparation method for reducing roller consumption Download PDFInfo
- Publication number
- CN113877967B CN113877967B CN202010629315.8A CN202010629315A CN113877967B CN 113877967 B CN113877967 B CN 113877967B CN 202010629315 A CN202010629315 A CN 202010629315A CN 113877967 B CN113877967 B CN 113877967B
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- roll
- roller
- hole type
- hole pattern
- pass
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- 238000002360 preparation method Methods 0.000 title abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000003754 machining Methods 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000007514 turning Methods 0.000 claims description 7
- 238000007726 management method Methods 0.000 claims description 6
- 230000003746 surface roughness Effects 0.000 claims description 5
- 238000009960 carding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a method for preparing a hole pattern sleeve for reducing roller consumption, which mainly comprises the following steps: the preparation method solves the problems of high roller consumption, large heavy vehicle amount, high labor intensity of personnel and the like, provides powerful guarantee for reducing the roller consumption of the roller, and reduces the labor intensity of workers on the other hand.
Description
Technical Field
The invention relates to the field of rollers in the metallurgical industry, in particular to a method for preparing a hole pattern sleeve for reducing roller consumption.
Background
Rolls refer to the main working parts and tools on rolling mills that produce continuous plastic deformation of metal. The roller mainly comprises a roller body, a roller neck and a shaft head 3. The roll body is the middle part of the roll that actually participates in rolling metal. It has a smooth cylindrical or grooved surface, the roll neck being mounted in bearings and transmitting the rolling force to the stand through bearing blocks and reduction means. The shaft head of the driving end is connected with the gear seat through a connecting shaft, and the rotating moment of the motor is transmitted to the roller. The rolls may be arranged in a roll stand in the form of two rolls, three rolls, four rolls or multiple rolls.
The classification method of the roller is various and mainly comprises the following steps: (1) The product types are classified into a strip steel roller, a section steel roller, a wire rod roller and the like; (2) The mill comprises a mill train, a rolling mill, a finishing mill and the like, wherein the rolling mill is provided with a cogging roll, a rough roll, a finishing roll and the like according to the positions of the rolling rolls in the rolling mill train; (3) The mill roll is divided into a scale breaking roll, a perforation roll, a leveling roll and the like according to the functions of the mill roll; (4) The materials of the rollers are divided into a steel roller, a cast iron roller, a hard alloy roller, a ceramic roller and the like; (5) The manufacturing method comprises casting roller, forging roller, build-up welding roller, inlaid roller, etc.; (6) dividing the rolled steel into hot rolls and cold rolls according to the state of the rolled steel.
The classification of the rollers has the problems of high consumption, large heavy vehicle quantity, high labor intensity of personnel and the like, and the consumption of the rollers directly influences the processing cost, so that the classification is particularly important in the current highly competitive environment.
Disclosure of Invention
The invention aims to: in order to solve the defects of the prior art, the invention provides a hole pattern sleeve preparation method for reducing the roller consumption of the roller, which solves the problems of high roller consumption, large heavy vehicle, high labor intensity of personnel and the like.
The technical scheme is as follows: in order to achieve the above object, the method for preparing the hole pattern sleeve for reducing the roll consumption of the roller, disclosed by the invention, comprises the following steps:
step one, finding the hole pattern
Carding the roll with the lower limit to be scrapped, placing according to the specification of the pass, checking by adopting a template with the specification of the pass of the lower limit scrapped roll, checking the conformity of the pass and the template, estimating the abrasion value, recording in detail on a record book, and making a table;
step two, measuring and calculating the distance
The wear data of the lower limit scrapped roll pass is compared with the roll matching distance of the roll with the specification larger than that of the scrapped roll pass, the distance of the pass to be processed is calculated, meanwhile, the design distance of the corresponding pass matching roll diagram is compared, and whether the strength of a roll collar between two passes is larger than the strength of a red steel rolled piece acting on the roll collar is calculated; the formulated processing technology which can meet the strength requirement of the roll collar can not meet the strength requirement of the roll collar for scrapping;
step three, rough machining
Marking the end part of a roller meeting the requirements by using paint, marking the roller to meet the requirements, processing according to a processing technology, firstly, adjusting the concentricity of the roller by a lathe, selecting a hole type cutter, processing a roller hole type close to a rotating side by adopting a formulated turning management method, checking whether a hole type sample plate is 60 wires away from a roller ring, checking whether a trace remained during rolling exists in the hole type by adopting a visual observation mode, if not, processing the next hole type, and if so, re-formulating the processing technology, and then processing;
step four, accurate alignment
Machining by adopting a finish machining hole type cutter, wherein the machined hole type is in tight thread joint with a template, and the surface is smooth and can not be provided with edges and rough surfaces; after one hole is machined, the abrasion condition of the hole type cutter is checked by a template, so that the uneven abrasion of the hole type cutter is prevented, and the subsequent hole type is scrapped. The finished hole pattern must be guaranteed to be "bright surface and tight thread fit".
As a further preferred aspect of the present invention, in the first step, the abrasion value is 3mm to 7mm.
As a further preferred aspect of the invention, in step two, the roll-to-roll gap is 7-20mm greater than the gauge of the reject roll pass.
In a further preferred embodiment of the present invention, in the second step, the measuring method is n Lower limit scrap >n Pass of last specification roller 。
As a further preferred aspect of the present invention, in the second step, the intensity is given by ρ Different temperature of different times /S Of hole pattern area 1/2。
In the third step, the machining process is executed according to the rule in the turning management method, and the hole pattern and hole pattern roller matching pattern size requirements are adopted as the standard.
As a further preferable mode of the invention, in the third step, the lathe rotation speed is less than 30-40 r/min.
In a further preferred embodiment of the present invention, in the fourth step, the machining speed is less than 10r/min by using a finishing hole type cutter.
In a further preferred aspect of the present invention, in the fourth step, the surface roughness of the hole pattern after the machining is detected by a surface roughness detector.
The beneficial effects are that: compared with the prior art, the method for preparing the hole pattern sleeve for reducing the roller consumption has the following advantages:
1. the labor intensity is greatly reduced by the workers operating strictly according to the formulated processing technology;
2. the turning quality of the roll pass is obviously improved;
3. the failure time after the roller is on line is reduced from original 1.5 hours/month to zero failure, and the reduction of the failure time can be increased by 1.5 hours/month, 80 tons/hour, 12 months, 100 yuan/ton=14.4 ten thousand yuan each year;
4. the method reduces the consumption of the roller and the labor intensity of workers, thereby reducing the adjustment time of a production line caused by the quality of the roller pass;
5. the method reduces the roller consumption by 10%, the annual output is 150 ten thousand tons, the cost can be reduced by 60 ten thousand yuan each year, and the total gain is 74.4 ten thousand yuan each year.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The invention will be further elucidated with reference to specific examples.
The invention relates to a method for preparing a hole pattern sleeve for reducing roller consumption, which mainly comprises the following steps: finding the hole type, measuring and calculating the distance, rough machining and accurately aligning.
Examples
Firstly, carding a roll with the lower limit to be scrapped, placing according to a pass specification, checking by adopting a pass specification template of the lower limit scrapped roll, checking the conformity of the pass and the template, estimating a wear value, recording in detail on a record book, and making a table, wherein the wear value is 3mm-7mm;
step two, the abrasion data of the lower limit scrapped roll pass is compared with the roll matching roll spacing of the specification of the scrapped roll pass, the roll matching roll spacing of the specification of the scrapped roll pass is 7-20mm, the spacing of the pass to be processed is calculated, the calculating method is that the n lower limit scrapped is greater than n of the roll pass of the upper specification, meanwhile, the design spacing of the corresponding pass matching roll pattern is compared, whether the strength of the roll collar between the two passes is greater than the strength of the red rolled piece on the roll collar is calculated, the formula of the strength is 1/2 of the different temperature/S pass areas of rho different frames, the formulated processing technology of the strength requirement of the roll collar can be met, and the scrapping of the roll collar strength requirement cannot be met;
marking the end part of the roller meeting the requirements by using paint, marking the roller meeting the requirements, processing according to a processing technology, wherein the processing technology is implemented according to the requirements of a turning management method, a hole pattern and a hole pattern matching roller pattern are adopted as standards, before processing, firstly, the concentricity of the roller is adjusted by a lathe, a hole pattern cutter is selected, the roller hole pattern close to the rotating side is processed by adopting a formulated turning management method, the rotating speed of the lathe is less than 30-40 r/min, when 60 wires are separated from a hole pattern plate and a roller ring, whether the trace remained in the hole pattern is rolled is checked by adopting a naked eye observation mode, if the trace remained in the hole pattern is not processed by adopting the next hole pattern processing, if the trace remained in the hole pattern is processed by adopting the next hole pattern processing, the processing technology is formulated again, and then processing is carried out;
and fourthly, machining by adopting a finish machining hole type cutter, wherein the rotating speed is less than 10r/min, the machined hole type is in tight fit with a template, the surface is smooth and cannot have edges and rough surfaces, a surface roughness detector is adopted for detection, and after one hole type is machined, the abrasion condition of the hole type cutter is checked by adopting the template, so that the uneven abrasion of the hole type cutter is prevented, and the subsequent hole type is scrapped. The finished hole pattern must be guaranteed to be "bright surface and tight thread fit".
The foregoing embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, not to limit the scope of the present invention. All changes and modifications that come within the meaning and range of equivalency of the invention are to be embraced within their scope.
Claims (6)
1. A method for preparing a hole type sleeve for reducing roller consumption comprises the following steps:
step one, finding the hole pattern
Carding the roll with the lower limit to be scrapped, placing according to the specification of the pass, checking by adopting a template with the specification of the pass of the lower limit scrapped roll, checking the conformity of the pass and the template, estimating the abrasion value, recording in detail on a record book, and making a table;
step two, measuring and calculating the distance
The wear data of the lower limit scrapped roll pass is compared with the roll matching distance of the roll with the specification larger than that of the scrapped roll pass, the distance of the pass to be processed is calculated, meanwhile, the design distance of the corresponding pass matching roll diagram is compared, and whether the strength of a roll collar between two passes is larger than the strength of a red steel rolled piece acting on the roll collar is calculated; the formulated processing technology which can meet the strength requirement of the roll collar can not meet the strength requirement of the roll collar for scrapping;
step three, rough machining
Marking the end part of a roller meeting the requirements by using paint, marking the roller to meet the requirements, processing according to a processing technology, firstly, adjusting the concentricity of the roller by a lathe, selecting a hole type cutter, processing a roller hole type close to a rotating side by adopting a formulated turning management method, checking whether a hole type sample plate is 60 wires away from a roller ring, checking whether a trace remained during rolling exists in the hole type by adopting a visual observation mode, if not, processing the next hole type, and if so, re-formulating the processing technology, and then processing;
step four, accurate alignment
Machining by adopting a finish machining hole type cutter, wherein the machined hole type is in tight thread joint with a template, the surface is smooth and cannot be provided with edges and rough surfaces, after one hole type is machined, the abrasion condition of the hole type cutter is checked by the template, so that the subsequent hole type is prevented from being scrapped due to uneven abrasion of the hole type cutter, and the machined hole type is required to ensure bright surface and tight thread joint;
in the first step, the abrasion value is 3mm-7mm;
in the second step, the roller matching distance of the roll caliber specification larger than the scrapped roll caliber specification is 7-20mm;
in the second step, the measuring and calculating method is n Lower limit scrap >n Pass of last specification roller 。
2. A method for producing a hole pattern sleeve for reducing roll consumption of a roll according to claim 1, wherein: in the second step, the formula of the intensity is ρ Different temperature of different times /S 1/2 of the hole pattern area 。
3. A method for producing a hole pattern sleeve for reducing roll consumption of a roll according to claim 1, wherein: and step three, the processing technology is executed according to the rule in the turning management method, and the standard adopts the size requirement of the hole pattern and the hole pattern roller matching pattern.
4. A method for producing a hole pattern sleeve for reducing roll consumption of a roll according to claim 1, wherein: and thirdly, the rotating speed of the lathe is less than 30-40 r/min.
5. A method for producing a hole pattern sleeve for reducing roll consumption of a roll according to claim 1, wherein: in the fourth step, the rotating speed of machining by adopting a finish machining hole type cutter is less than 10r/min.
6. A method for producing a hole pattern sleeve for reducing roll consumption of a roll according to claim 1, wherein: and step four, detecting the surface roughness of the machined hole pattern by adopting a surface roughness detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010629315.8A CN113877967B (en) | 2020-07-03 | 2020-07-03 | Hole pattern sleeve preparation method for reducing roller consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010629315.8A CN113877967B (en) | 2020-07-03 | 2020-07-03 | Hole pattern sleeve preparation method for reducing roller consumption |
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| Publication Number | Publication Date |
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| CN113877967A CN113877967A (en) | 2022-01-04 |
| CN113877967B true CN113877967B (en) | 2024-03-19 |
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| CN202010629315.8A Active CN113877967B (en) | 2020-07-03 | 2020-07-03 | Hole pattern sleeve preparation method for reducing roller consumption |
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| CN114472528B (en) * | 2022-02-08 | 2024-01-09 | 南京钢铁股份有限公司 | Roller machining method for increasing negative tolerance of 22-specification finished deformed steel bar |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05317935A (en) * | 1992-05-20 | 1993-12-03 | Hitachi Ltd | Automatic input system for specification of roll of rolling mill |
| CN2728666Y (en) * | 2004-09-17 | 2005-09-28 | 宝钢集团上海五钢有限公司 | Oxidation iron sheet driving separator of biroller straightening polishing mill |
| CN103586284A (en) * | 2013-11-12 | 2014-02-19 | 山东西王特钢有限公司 | Roll allocation method and device for optimization of roll pass system |
| CN103878181A (en) * | 2012-12-21 | 2014-06-25 | 鞍钢股份有限公司 | Roll pass optimizing method capable prolonging shaped roll service life |
| CN204842461U (en) * | 2015-07-07 | 2015-12-09 | 河北钢铁股份有限公司邯郸分公司 | H shaped steel edging mill of roller bad news can be effectively reduced and roller pass structure is joined in marriage |
| CN106424145A (en) * | 2016-08-02 | 2017-02-22 | 无锡天众冶金设备有限公司 | Bushing process for repairing rollers |
-
2020
- 2020-07-03 CN CN202010629315.8A patent/CN113877967B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05317935A (en) * | 1992-05-20 | 1993-12-03 | Hitachi Ltd | Automatic input system for specification of roll of rolling mill |
| CN2728666Y (en) * | 2004-09-17 | 2005-09-28 | 宝钢集团上海五钢有限公司 | Oxidation iron sheet driving separator of biroller straightening polishing mill |
| CN103878181A (en) * | 2012-12-21 | 2014-06-25 | 鞍钢股份有限公司 | Roll pass optimizing method capable prolonging shaped roll service life |
| CN103586284A (en) * | 2013-11-12 | 2014-02-19 | 山东西王特钢有限公司 | Roll allocation method and device for optimization of roll pass system |
| CN204842461U (en) * | 2015-07-07 | 2015-12-09 | 河北钢铁股份有限公司邯郸分公司 | H shaped steel edging mill of roller bad news can be effectively reduced and roller pass structure is joined in marriage |
| CN106424145A (en) * | 2016-08-02 | 2017-02-22 | 无锡天众冶金设备有限公司 | Bushing process for repairing rollers |
Non-Patent Citations (1)
| Title |
|---|
| 轨梁轧机轧辊消耗影响因素;段永强;王琨;达木仁扎布;;包钢科技(第04期);81-84 * |
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| CN113877967A (en) | 2022-01-04 |
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