CN103920723B - Band steel local high spot detection method - Google Patents
Band steel local high spot detection method Download PDFInfo
- Publication number
- CN103920723B CN103920723B CN201410175480.5A CN201410175480A CN103920723B CN 103920723 B CN103920723 B CN 103920723B CN 201410175480 A CN201410175480 A CN 201410175480A CN 103920723 B CN103920723 B CN 103920723B
- Authority
- CN
- China
- Prior art keywords
- local high
- high spot
- band steel
- representative value
- stated limit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention relates to a kind of band steel local high spot detection method, comprising: measuring tape steel tranverse sectional thickness; Along the stated limit of strip width direction, band steel is divided into n section, n be greater than 1 natural number, calculate the thickness difference of continuous three Along ents; If continuous three Along ent thickness differences reach setting threshold value, then determine to there is local high spot in described stated limit, get the maximum value in continuous three the Along ent thickness differences calculated in described stated limit as described local high spot representative value; Using local high spot representative value in the position of local high spot and described stated limit as local high spot detected value in described stated limit. Present invention achieves the automatic detection of band steel local high spot, overcome artificial visually examine's detection difficulty and the problem such as error is big.
Description
Technical field
The present invention relates to hot rolled strip production technical field, particularly relate to band steel local high spot detection method.
Background technology
Local high spot, refers to a kind of strip section local protuberance that on band steel cross section, in subrange, thickness deviates adjacent segment thickness and show, and is called local high spot when the height value of projection part exceeds zone of reasonableness.
Local high spot problem is plate shape problem more common in hot rolled strip, and the local high spot of band steel can cause stalk print defect in cold rolling material, produce surrender L&S line defect in silicon steel product, finally causes relatively bad influence to quality product.
Local high spot problem is adopted multiple measure to improve by prior art in hot rolled strip production process, but still there are the following problems:
(1) measurement of local high spot and judge that only relying on operator estimates according to the curve of the multi-functional instrument record of instantaneous display, artificial judgment is inaccurate, causes batch local high spot defect to produce;
(2) there is hysteresis quality in operation production afterwards, it has been found that the version type curve not easy-to-search that when problem band steel is rolled up, its problem band steel volume is corresponding.
Rear operation goes wrong in producing band steel volume corresponding one to two months often hot rolling date manufactured, steel volume before even for more time, the plate sigmoid curve that technician searches problem band steel volume again is wasted time and energy, and likely cannot investigate because overlong time plate sigmoid curve loses.
Therefore, how to realize the automatic detection of band steel local high spot, avoid artificial visually examine to cause and measure that difficulty is big and the problem such as measuring error is big, become hot rolled strip produce in heavy difficult point problem urgently to be resolved hurrily.
Summary of the invention
It is an object of the present invention to provide a kind of band steel local high spot detection method, technical problem to be solved comprises: avoid artificial visually examine to be with steel local high spot difficulty big, the problems such as error is big.
The object of the invention to solve the technical problems can adopt following technical scheme to realize.
A kind of band steel local high spot detection method proposed according to the present invention, comprising:
Measuring tape steel tranverse sectional thickness;
Along the stated limit of strip width direction, band steel is divided into n section, n be greater than 1 natural number, calculate the thickness difference of continuous three equal segments;
If continuous three equal segments thickness differences reach setting threshold value, then determine to there is local high spot in described stated limit, get the maximum value in continuous three the equal segments thickness differences calculated in described stated limit as local high spot representative value in described stated limit;
Using local high spot representative value in the position of local high spot and described stated limit as local high spot detected value in described stated limit.
Preferably, aforesaid band steel local high spot detection method, the step of wherein said measuring tape steel tranverse sectional thickness specifically comprises:
Adopt Fixed Time Interval measuring tape steel tranverse sectional thickness; Or continuously measured band steel tranverse sectional thickness.
Preferably, aforesaid band steel local high spot detection method, wherein said includes but not limited to along strip width direction stated limit:
Along in distance band steel edge 40mm to the 140mm scope of strip width direction.
Preferably, aforesaid band steel local high spot detection method, wherein said comprises along strip width direction stated limit:
Band steel active side is along in distance band steel edge 40mm to the 140mm scope of strip width direction; With
Band steel back side is along in distance band steel edge 40mm to the 140mm scope of strip width direction.
Preferably, aforesaid band steel local high spot detection method, comprises further:
Preserve and show local high spot detected value.
Preferably, aforesaid band steel local high spot detection method, wherein comprises further:
Described local high spot grade is divided according to local high spot representative value.
Preferably, aforesaid band steel local high spot detection method, wherein said according to local high spot representative value divide local high spot grade include but not limited to:
Local high spot representative value is less than or equal to 8 ��m, is divided into 1 grade;
Local high spot representative value is greater than 8 ��m, and is less than 15 ��m, is divided into 2 grades;
Local high spot representative value is greater than 15 ��m, is divided into 3 grades.
Preferably, aforesaid band steel local high spot detection method, wherein comprises further: the local high spot grade according to dividing sends alarm message, wherein,
If local high spot reaches 2 grades, then send alarm message; Or
If local high spot reaches 3 grades, then send alarm message.
Preferably, aforesaid band steel local high spot detection method, wherein get the maximum value in continuous three the equal segments thickness differences calculated in described stated limit as, after local high spot representative value in described stated limit, comprising further: send alarm message according to described local high spot representative value;
Wherein, local high spot representative value is greater than 8 ��m, and is less than 15 ��m and sends alarm message; Or
Local high spot representative value is greater than 15 ��m and sends alarm message.
Preferably, aforesaid band steel local high spot detection method, wherein
For different local high spot representative value, send different alarm message.
By technique scheme, the band steel local high spot detection method of the present invention at least has following advantage and useful effect:
The embodiment of the present invention achieves the automatic detection of band steel local high spot, solve local high spot manual detection difficulty and the big problem of error, avoid the generation of batch local high spot defect, it is to increase hot rolled strip quality level.
In sum, the present invention has significant progress technically, and has significantly positive technique effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to the technique means of the present invention can be better understood, and can be implemented according to the content of specification sheets, and in order to the above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by better embodiment, and coordinate Figure of description, it is described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the band steel local high spot detection method schema of the present invention;
The band steel local high spot information that Fig. 2 is the present invention preserves example.
Embodiment
For further setting forth the present invention, for reaching technique means and effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and better embodiment, to band steel its embodiment of local high spot detection method proposed according to the present invention, structure and feature, it is described in detail as follows.
The present embodiment provides a kind of band steel local high spot detection method, see Fig. 1, is described band steel local high spot detection method schema.
In Fig. 1, S100, measuring tape steel tranverse sectional thickness;
Described in the present embodiment, the step of measuring tape steel tranverse sectional thickness specifically can be adopted with the following method:
Adopt Fixed Time Interval measuring tape steel tranverse sectional thickness; Or
Continuously measured band steel tranverse sectional thickness.
Wherein, Fixed Time Interval measuring tape steel tranverse sectional thickness is adopted described in a kind of embodiment, it is possible to for measuring a sub-band steel tranverse sectional thickness at interval of 2s. It should be appreciated that the present embodiment is not limited thereto, need to increase or reduce the timed interval according to user.
Continuously measured band steel tranverse sectional thickness described in the present embodiment, namely along the tranverse sectional thickness of the uninterrupted continuously measured band steel of band steel length direction.
Described in the present embodiment, band steel cross section refers to the cross section along width band steel.
The present embodiment can adopt multi-functional instrument to realize measuring tape steel tranverse sectional thickness.
S110, along the stated limit of strip width direction, band steel is divided into n section, n be greater than 1 natural number, calculate the thickness difference of continuous three equal segments;
Comprising the local high spot section of taking place frequently along strip width direction stated limit described in the present embodiment, a kind of embodiment specifically includes but not limited to: along in distance band steel edge 40mm to the 140mm scope of strip width direction.
In addition, band steel active side and back side can be carried out survey calculation by the present embodiment simultaneously, also it is exactly described comprising along strip width direction stated limit: band steel active side is along in the stated limit of strip width direction, and band steel back side is along in the stated limit of strip width direction. Wherein, stated limit described in a kind of embodiment comprises in band steel active side distance band steel edge 40mm to 140mm scope and in band steel back side distance band steel edge 40mm to 140mm scope.
Band steel in stated limit is divided into n section by the present embodiment, and the value of n can be determined according to on-site actual situations, n be greater than 1 natural number.
Band steel active side described in the present embodiment, refers to that band steel is partial to the side of operator's console along width; Described band steel back side, refers to that band steel deviates from the side of operator's console along width.
If continuous three the equal segments thickness differences of S120 reach setting threshold value, then determine to there is local high spot in described stated limit, get the maximum value in continuous three the equal segments thickness differences calculated in described stated limit as local high spot representative value in described stated limit;
The one-tenth-value thickness 1/10 of each Along ent is designated as h by the present embodimenti(i=1��n+1), and be defined as follows:
X1=| hi-hi+1|
X2=| hi-hi+2|
X3=| hi-hi+3|
Xm=| hn-2-hn+1|
XmRepresent the thickness difference of continuous three equal segments, work as X1��X2��X3......XmIn have one or more value be greater than setting threshold value M time, then think to there is local high spot in described stated limit, wherein M value is determined according to steel grade characteristic.
The present embodiment gets X1��X2��X3......XmIn maximum value, i.e. Xmax, as the representative value of local high spot in described stated limit.
S130, using local high spot representative value in the position of local high spot and described stated limit as local high spot detected value in described stated limit.
The position of local high spot described in the present embodiment refers to that described local high spot is positioned at band steel active side or band steel back side. The present embodiment is after detecting out local high spot, using local high spot representative value in the position of local high spot and described stated limit as local high spot detected value in described stated limit, preserve described local high spot detected value simultaneously, also it is exactly after local high spot being detected every time, all its position and representative value is preserved.
The present invention can divide described local high spot grade according to local high spot representative value, wherein, divides local high spot grade according to local high spot representative value and include but not limited to following rank division method described in a kind of embodiment:
Local high spot representative value is less than or equal to 8 ��m, is divided into 1 grade, belongs to slight grade;
Local high spot representative value is greater than 8 ��m, and is less than 15 ��m, is divided into 2 grades, belongs to Middle grade;
Local high spot representative value is greater than 15 ��m, is divided into 3 grades, belongs to menace level.
For making technician observe out position and the severity of local high spot intuitively, an embodiment of the present invention preserves and shows the method for local high spot information can be as follows:
Adopting double figures XY to represent, wherein first X represents local high spot position, represents back side local high spot when X position is D, represents active side local high spot when X position is O; 2nd Y represents local high spot grade, such as, if the local high spot detected out is shown as D1, represents that back side occurs that grade is the local high spot of 1; If the local high spot detected out is shown as O3, represent that active side occurs that grade is the local high spot of 3. The practical situation of band steel local high spot can be told by this preservation and display mode technician intuitively, and corresponding control device can be taked to eliminate this kind of bad plate shape, it is to increase hot rolled strip strip shape quality.
The store method of an embodiment of the present invention local high spot information as shown in Figure 2, in Fig. 2, comprises when preserving local high spot information:
Band steel reel number, such as, in Fig. 2 9285867403;
Band steel finished product thickness, such as, in Fig. 2 6.08;
Band steel finished width, such as, in Fig. 2 1674; And
Local high spot position that double figures represents and grade, such as, in Fig. 2 O2.
The embodiment of the present invention also can send alarm message according to local high spot representative value.
Wherein, a kind of embodiment is the situation not dividing local high spot grade, directly sends alarm message according to local high spot representative value, and concrete grammar includes but not limited to:
If local high spot representative value is greater than 8 ��m, and it is less than 15 ��m and sends alarm message; Or
If local high spot representative value is greater than 15 ��m sends alarm message.
The present embodiment for different local high spot representative value, can send different alarm message, such as, if local high spot representative value is greater than 8 ��m, and be less than 15 ��m, then send the first sound and report to the police; If local high spot representative value is greater than 15 ��m, then sends the 2nd kind of sound and report to the police, like this by the severity of different alarm sound technician and distinguishable local high spot.
Another kind of embodiment is send alarm message according to the local high spot grade divided, and specifically includes but not limited to:
If local high spot reaches 2 grades, then send alarm message; Or
If local high spot reaches 3 grades, then send alarm message.
Wherein, the present embodiment for different local high spot grade, can send different alarm message, such as, if local high spot reaches 2 grades, then sends the first sound and reports to the police; If local high spot reaches 3 grades, then send the 2nd kind of sound and report to the police, like this by the severity of different alarm sound technician and distinguishable local high spot.
The present embodiment can send described alarm message at finish rolling operator's console.
The embodiment of the present invention achieves the automatic detection of band steel local high spot, solve local high spot manual detection difficulty and the big problem of error, avoid the generation of batch local high spot defect, it is to increase hot rolled strip quality level.
In addition, the local high spot information that the present embodiment provides preserves and display mode, the situation of the local high spot that the understanding of technician's intuitive and convenient detects can be made, thus take corresponding regulating measures to eliminate this kind of bad plate shape, improve hot rolled strip strip shape quality, and the local high spot information of detection is saved and can provide reference for user and operation production below.
Simultaneously, the present embodiment can send warning after detecting out local high spot, and different local high spot representative value can be distinguished and send different alarm message, technician can understand local high spot severity by alarm message, thus take corresponding regulating measures to eliminate this kind of bad plate shape, it is to increase hot rolled strip strip shape quality.
The above is only the better embodiment of the present invention, not the present invention is done any restriction in form, although the present invention discloses as above with better embodiment, but and be not used to limit the present invention technology, any those skilled in the art are not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or it is modified to the equivalent embodiment of equivalent variations, in every case it is the content not departing from technical solution of the present invention, the any simple modification above embodiment done according to the technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. a band steel local high spot detection method, it is characterised in that, comprising:
Measuring tape steel tranverse sectional thickness;
Along the stated limit of strip width direction, band steel is divided into n section, n be greater than 1 natural number, calculate the thickness difference of continuous three equal segments;
If continuous three equal segments thickness differences reach setting threshold value, then determine to there is local high spot in described stated limit, get the maximum value in continuous three the equal segments thickness differences calculated in described stated limit as local high spot representative value in described stated limit;
Using local high spot representative value in the position of local high spot and described stated limit as local high spot detected value in described stated limit; The step of described measuring tape steel tranverse sectional thickness specifically comprises:
Adopt Fixed Time Interval measuring tape steel tranverse sectional thickness; Or
Continuously measured band steel tranverse sectional thickness; Described comprise along strip width direction stated limit:
Along in distance band steel edge 40mm to the 140mm scope of strip width direction.
2. band steel local high spot detection method as claimed in claim 1, it is characterised in that, described comprise along strip width direction stated limit:
Band steel active side is along in distance band steel edge 40mm to the 140mm scope of strip width direction; With
Band steel back side is along in distance band steel edge 40mm to the 140mm scope of strip width direction.
3. band steel local high spot detection method as claimed in claim 1, it is characterised in that, comprise further:
Preserve and show local high spot detected value.
4. band steel local high spot detection method as claimed in claim 1, it is characterised in that, comprise further:
Described local high spot grade is divided according to local high spot representative value.
5. band steel local high spot detection method as claimed in claim 4, it is characterised in that, described divide local high spot grade according to local high spot representative value and comprise:
Local high spot representative value is less than or equal to 8 ��m, is divided into 1 grade;
Local high spot representative value is greater than 8 ��m, and is less than 15 ��m, is divided into 2 grades;
Local high spot representative value is greater than 15 ��m, is divided into 3 grades.
6. band steel local high spot detection method as claimed in claim 5, it is characterised in that, comprise further: according to what divide
Local high spot grade sends alarm message, wherein,
If local high spot reaches 2 grades, then send alarm message; Or
If local high spot reaches 3 grades, then send alarm message.
7. band steel local high spot detection method as claimed in claim 1, it is characterized in that, get the maximum value in continuous three the equal segments thickness differences calculated in described stated limit as, after local high spot representative value in described stated limit, comprising further: send alarm message according to described local high spot representative value;
Wherein, local high spot representative value is greater than 8 ��m, and is less than 15 ��m and sends alarm message; Or
Local high spot representative value is greater than 15 ��m and sends alarm message.
8. band steel local high spot detection method as claimed in claims 6 or 7, it is characterised in that,
For different local high spot representative value, send different alarm message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175480.5A CN103920723B (en) | 2014-04-28 | 2014-04-28 | Band steel local high spot detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175480.5A CN103920723B (en) | 2014-04-28 | 2014-04-28 | Band steel local high spot detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103920723A CN103920723A (en) | 2014-07-16 |
| CN103920723B true CN103920723B (en) | 2016-06-01 |
Family
ID=51139254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410175480.5A Expired - Fee Related CN103920723B (en) | 2014-04-28 | 2014-04-28 | Band steel local high spot detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103920723B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203731B (en) * | 2015-09-10 | 2017-03-01 | 北京首钢股份有限公司 | A kind of strip steel cross-sectional outling defect local high spot quantization method and device |
| CN106825058A (en) * | 2016-12-30 | 2017-06-13 | 日照宝华新材料有限公司 | ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method |
| CN107470375B (en) * | 2017-07-13 | 2019-06-11 | 北京科技大学 | A kind of online recognition method of the local high concave point in strip cross section |
| CN112179308A (en) * | 2020-09-11 | 2021-01-05 | 山东钢铁集团日照有限公司 | Hot-rolled steel strip cross section contour local high point grading discrimination method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6087902A (en) * | 1983-10-20 | 1985-05-17 | Kawasaki Steel Corp | Method for controlling accuracy of gamma-ray thickness gage in rolling of thick plate |
| US5267170A (en) * | 1990-11-01 | 1993-11-30 | Kabushiki Kaisha Toshiba | Method and apparatus for controlling rolling mill |
| CN102658299A (en) * | 2012-05-23 | 2012-09-12 | 河北省首钢迁安钢铁有限责任公司 | System and method for detecting and analyzing transverse thickness difference of electric steel |
| CN103302105A (en) * | 2013-06-17 | 2013-09-18 | 河北省首钢迁安钢铁有限责任公司 | Cooperative control method for controlling edge crease defect and edge thickness of cold-rolled strip steel |
| CN103341505A (en) * | 2013-06-25 | 2013-10-09 | 中冶南方工程技术有限公司 | Cold-rolled sheet shape signal online mode recognition method |
-
2014
- 2014-04-28 CN CN201410175480.5A patent/CN103920723B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6087902A (en) * | 1983-10-20 | 1985-05-17 | Kawasaki Steel Corp | Method for controlling accuracy of gamma-ray thickness gage in rolling of thick plate |
| US5267170A (en) * | 1990-11-01 | 1993-11-30 | Kabushiki Kaisha Toshiba | Method and apparatus for controlling rolling mill |
| CN102658299A (en) * | 2012-05-23 | 2012-09-12 | 河北省首钢迁安钢铁有限责任公司 | System and method for detecting and analyzing transverse thickness difference of electric steel |
| CN103302105A (en) * | 2013-06-17 | 2013-09-18 | 河北省首钢迁安钢铁有限责任公司 | Cooperative control method for controlling edge crease defect and edge thickness of cold-rolled strip steel |
| CN103341505A (en) * | 2013-06-25 | 2013-10-09 | 中冶南方工程技术有限公司 | Cold-rolled sheet shape signal online mode recognition method |
Non-Patent Citations (1)
| Title |
|---|
| 轧辊磨损状况与带钢局部高点之间的关系研究;赖金权;《2009年全国热轧板带生产技术交流会论文集》;20091022;第75-81页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103920723A (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103920723B (en) | Band steel local high spot detection method | |
| CN104942017B (en) | The determination method of lateral thick difference of cold-rolling strip steels | |
| CN101905248A (en) | Strip steel section shape detecting and identifying method | |
| WO2009010064A3 (en) | Methods and systems for detecting the presence, or determining the location or the size, or detecting changes of material properties, of an object within a predefined space | |
| US11783691B1 (en) | Beidou communication-based integrated monitoring system for slope surface crack | |
| CN104535478A (en) | Hole blocking judging and result correcting method based on particle flow stability | |
| CN104792275B (en) | A kind of tunnel deformation detecting device and method | |
| JP2014071098A5 (en) | ||
| CN202141420U (en) | Clearance ruler | |
| US20130268217A1 (en) | Method and apparatus for detecting abnormality of a capacitor | |
| CN105363800A (en) | Precise plate shape value obtaining method based on sectional shape | |
| CN101871762A (en) | Clearance measurement tool | |
| CN103606240A (en) | Method for fire alarming through distributed type fiber optical temperature sensor system | |
| CN104500141A (en) | Outburst warning method based on monitoring dynamic characteristics of mine pressure | |
| CN102486811B (en) | Continuous annealing machine set detection signals and the correlating method of strip steel position | |
| CN104730217B (en) | The defect distribution display methods of a kind of glass substrate and display device | |
| WO2012150983A3 (en) | Detection of static tip resistance of a pile | |
| CN108287080A (en) | A kind of tire ditch is split and the road test evaluation method of extension problem | |
| CN105327946A (en) | Convexity effectiveness judging method and system for feedback calculation of plate shape model | |
| TW200738214A (en) | Method with capability of determining irregular heartbeats | |
| JP6214428B2 (en) | Compaction device and compaction ground construction method | |
| CN110227725B (en) | Roll gap self-learning deviation rectifying method and device | |
| CN109146869B (en) | Galvanized wire strip steel galvanizing defect tracking method | |
| CN103207296B (en) | A kind of digital oscilloscope for showing unusual waveforms | |
| CN105598186A (en) | Flatness evaluation system and method based on transverse flatness distribution of band steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170725 Address after: 430080 Qingshan District stock company of Hubei, Wuhan Province Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Friendship Avenue, Hubei, Wuhan, No. 999 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20200428 |