CN102649128A - Defect inspection method for surfaces of cold hard rolls - Google Patents
Defect inspection method for surfaces of cold hard rolls Download PDFInfo
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- CN102649128A CN102649128A CN2012101413591A CN201210141359A CN102649128A CN 102649128 A CN102649128 A CN 102649128A CN 2012101413591 A CN2012101413591 A CN 2012101413591A CN 201210141359 A CN201210141359 A CN 201210141359A CN 102649128 A CN102649128 A CN 102649128A
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- zone
- polishing
- inspection
- roughness
- chill volume
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Abstract
The invention discloses a defect inspection method for the surfaces of cold hard rolls, and belongs to the technical field of cold rolled strip rolling. The method grinds selected cold hard rolls in the rolling direction and the width direction respectively and inspects grinding area to find out an area needing coarseness measurement, so as to obtain an inspection conclusion according to the difference between the coarseness measured value and the mean value. The method can control inspection efficiency according to production rhythms of different production lines, thereby effectively controlling the cost loss caused by inspection and providing a means of reasonably reducing product cost for enterprises. Besides, different grinding modes effectively find out chatter marks in different forms so as to find out defects in time, so that the unqualified products are decreased. Setting different criteria for differentiating coarsenesses can provide judgment for quality inspectors to conduct quantification.
Description
Technical field
The present invention relates to the cold rolled sheet rolling technical field, particularly a kind of method that defect inspection is carried out on chill volume surface.
Background technology
In the prior art, the band steel adopts shallow slot turbulent flow continous way chlorohydric acid pickling unit after rolling usually, and emulsion remaining on the belt steel surface still leaves about 350g/m on the belt steel surface after the milling train exit is compressed air purge
2The Residual oil film, residual oil film can form diaphragm to band steel matrix Fe under situation about not handling; But residual oil film also can be covered the defective of belt steel surface, as presses against hole and chatter mark etc.; For this defective,, will produce a large amount of substandard products if can not in time find.Therefore, need be under the situation of not destroying or destroy less oil film the mass defect of belt steel surface be found out.But, in the prior art, normally belt steel surface is carried out defect inspection through single polishing mode, omission takes place in such test mode easily.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of method that defect inspection is carried out on chill volume surface that can avoid omission effectively.
The method that defect inspection is carried out on chill volume surface provided by the invention may further comprise the steps:
With the chill volume that winds off;
Chill volume to after the uncoiling is polished along the belt steel rolling direction, makes polishing length can contain the girth of all rolls, and forms the polishing zone;
Said polishing zone is checked, found out the zone that to carry out roughness concentration;
The regional broad ways of said polishing is polished;
Said polishing zone is checked, found out the zone that to carry out roughness concentration;
Said needs are carried out the zone of roughness concentration and carry out roughness concentration, draw roughness metric, and calculate the average of said measured value;
Difference according between said roughness metric and the said average draws the inspection conclusion.
As preferably, also comprise and select the chill volume that to check; The said frequency of selecting the chill volume that need check is to confirm according to the rhythm of production of unit.
As preferably, per 5～7 chill volumes are selected out the chill volume that needs are checked.
As preferably, to the chill volume after the said uncoiling when the belt steel rolling direction is polished, polishing length >=3m.
As preferably, be under directional light, the intensity of reflected light in said polishing zone to be observed contrast to the regional method of checking of said polishing.
As preferably, the zone that said needs carry out roughness concentration is the unusual zone of intensity of reflected light.
As preferably, when drawing the inspection conclusion, if said difference >=0.3 μ m, draw the inspection conclusion that defective can impact follow-up punching press according to the difference between said roughness metric and the said average.
The rhythm of production control inspection frequency that can produce line on the one hand according to difference to the surperficial method of carrying out defect inspection of chill volume provided by the invention has effectively been controlled the cost allowance that inspection brings, and for enterprise rationally reduces product cost approach is provided; On the other hand; Effectively multi-form chatter mark is found out through different polishing modes, defective is in time found, reduced the quantity that defective work produces; Distinguish standard through setting different roughness simultaneously, can be used as the judgment basis that quality control personnel quantize.
The specific embodiment
In order to understand the present invention in depth, the present invention is elaborated below in conjunction with specific embodiment.
The method that defect inspection is carried out on chill volume surface provided by the invention may further comprise the steps:
S1: select the chill volume that to check.
Wherein, the frequency of selecting the chill volume that need check can be that root is confirmed according to the rhythm of production of unit.
Wherein, can select out the chill volume that needs are checked by per 5～7 chill volumes.
S2: the chill volume that winds off that needs are checked.
S3: the chill volume to after the uncoiling is polished along the belt steel rolling direction, makes polishing length can contain the girth of all rolls, and forms the polishing zone.
Wherein, to the chill volume after the uncoiling when the belt steel rolling direction is polished, polishing length can >=3m.
S4: the zone of polishing is checked, found out the zone that to carry out roughness concentration.
Wherein, the method for the zone of polishing being checked is under directional light, the intensity of reflected light in the zone of polishing to be observed contrast.
Wherein, the zone that need carry out roughness concentration is the unusual zone of intensity of reflected light.
S5: regional broad ways is polished to polishing.
S6: the zone of polishing is checked, found out the zone that to carry out roughness concentration.
S7: roughness concentration is carried out in the zone of needs being carried out roughness concentration, draws roughness metric, and calculates the average of measured value.
S8: draw the inspection conclusion according to the difference between roughness metric and the average.
Wherein, draw inspection during conclusion, if difference >=0.3 μ m, draw the inspection conclusion that defective can impact follow-up punching press according to the difference between roughness metric and the average.
The rhythm of production control inspection frequency that can produce line on the one hand according to difference to the surperficial method of carrying out defect inspection of chill volume provided by the invention has effectively been controlled the cost allowance that inspection brings, and for enterprise rationally reduces product cost approach is provided; On the other hand; Effectively multi-form chatter mark is found out through different polishing modes, defective is in time found, reduced the quantity that defective work produces; Distinguish standard through setting different roughness simultaneously, can be used as the judgment basis that quality control personnel quantize.
The above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely the specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the method that defect inspection is carried out on chill volume surface is characterized in that, may further comprise the steps:
With the chill volume that winds off;
Chill volume to after the uncoiling is polished along the belt steel rolling direction, makes polishing length can contain the girth of all rolls, and forms the polishing zone;
Said polishing zone is checked, found out the zone that to carry out roughness concentration;
The regional broad ways of said polishing is polished;
Said polishing zone is checked, found out the zone that to carry out roughness concentration;
Said needs are carried out the zone of roughness concentration and carry out roughness concentration, draw roughness metric, and calculate the average of said measured value;
Difference according between said roughness metric and the said average draws the inspection conclusion.
2. method according to claim 1 is characterized in that, also comprises selecting the chill volume that need check; The said frequency of selecting the chill volume that need check is to confirm according to the rhythm of production of unit.
3. method according to claim 2 is characterized in that, per 5～7 chill volumes are selected out the chill volume that needs are checked.
4. method according to claim 1 is characterized in that, to the chill volume after the said uncoiling when the belt steel rolling direction is polished, polishing length >=3m.
5. method according to claim 1 is characterized in that, the method that said polishing zone is checked is under directional light, the intensity of reflected light in said polishing zone to be observed contrast.
6. method according to claim 5 is characterized in that, the zone that said needs carry out roughness concentration is the unusual zone of intensity of reflected light.
7. method according to claim 1 is characterized in that, draws inspection during conclusion according to the difference between said roughness metric and the said average, if said difference >=0.3 μ m, draws the inspection conclusion that defective can impact follow-up punching press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141359.1A CN102649128B (en) | 2012-05-09 | 2012-05-09 | Defect inspection method for surfaces of cold hard rolls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141359.1A CN102649128B (en) | 2012-05-09 | 2012-05-09 | Defect inspection method for surfaces of cold hard rolls |
Publications (2)
| Publication Number | Publication Date |
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| CN102649128A true CN102649128A (en) | 2012-08-29 |
| CN102649128B CN102649128B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210141359.1A Active CN102649128B (en) | 2012-05-09 | 2012-05-09 | Defect inspection method for surfaces of cold hard rolls |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663256A (en) * | 2018-03-19 | 2018-10-16 | 武汉钢铁有限公司 | Specimen surface processing method for the test of X-ray internal stress |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999048628A1 (en) * | 1998-03-24 | 1999-09-30 | Kawasaki Steel Corporation | Method of manufacturing high-gloss stainless cold rolled steel strip |
| JP2000314707A (en) * | 1999-05-07 | 2000-11-14 | Nkk Corp | Device and method for inspecting surface |
| KR20010060790A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | Method for measurement of cold-rolled steel sheet |
| CN101537431A (en) * | 2008-03-21 | 2009-09-23 | 宝山钢铁股份有限公司 | Method for online predicting and controlling of roughness of surface of cold-rolled thin steel strip |
| CN101972781A (en) * | 2010-11-11 | 2011-02-16 | 西南铝业（集团）有限责任公司 | Auxiliary examination method for weaving texture defect on surface of roller |
-
2012
- 2012-05-09 CN CN201210141359.1A patent/CN102649128B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999048628A1 (en) * | 1998-03-24 | 1999-09-30 | Kawasaki Steel Corporation | Method of manufacturing high-gloss stainless cold rolled steel strip |
| JP2000314707A (en) * | 1999-05-07 | 2000-11-14 | Nkk Corp | Device and method for inspecting surface |
| KR20010060790A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | Method for measurement of cold-rolled steel sheet |
| CN101537431A (en) * | 2008-03-21 | 2009-09-23 | 宝山钢铁股份有限公司 | Method for online predicting and controlling of roughness of surface of cold-rolled thin steel strip |
| CN101972781A (en) * | 2010-11-11 | 2011-02-16 | 西南铝业（集团）有限责任公司 | Auxiliary examination method for weaving texture defect on surface of roller |
Non-Patent Citations (1)
| Title |
|---|
| 李伯奎: "三维粗糙度参数算术平均偏差与均方根偏差的规律研究", 《工具技术》, no. 09, 20 September 2008 (2008-09-20) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663256A (en) * | 2018-03-19 | 2018-10-16 | 武汉钢铁有限公司 | Specimen surface processing method for the test of X-ray internal stress |
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|---|---|
| CN102649128B (en) | 2015-05-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120829 Assignee: BEIJING SHOUGANG COLD ROLLING THIN PLATE CO., LTD. Assignor: Capital Iron & Steel General Company Contract record no.: 2015990001019 Denomination of invention: Defect inspection method for surfaces of cold hard rolls Granted publication date: 20150527 License type: Common License Record date: 20151209 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |