CN105486808A - Portable strip steel surface cleaning on-line detection device and use method thereof - Google Patents
Portable strip steel surface cleaning on-line detection device and use method thereof Download PDFInfo
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- CN105486808A CN105486808A CN201510843051.5A CN201510843051A CN105486808A CN 105486808 A CN105486808 A CN 105486808A CN 201510843051 A CN201510843051 A CN 201510843051A CN 105486808 A CN105486808 A CN 105486808A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a portable strip steel surface cleaning on-line detection device. The portable strip steel surface cleaning on-line detection device comprises a test cloth, the test cloth is arranged at an exposed part of an inflatable ball through a clamp ring, a rigid unclosed housing is arranged outside the inflatable ball, a handle is connected to the housing, the housing is provided with a barometer communicated with the inflatable ball and an inflation port communicated with the inflatable ball and the housing is provided with a timer. A use method of the portable strip steel surface cleaning on-line detection device comprises adjusting a steel band speed to 60-90m/min, holding the handle through a hand, testing a position of the steel plate to be detected through the inflatable ball test cloth pasted to the steel plate, calculating a test area of the polluted part, calculating reflectivity difference, calculating a strip steel surface cleanliness value according to a strip steel surface cleanliness characterization formula and carrying out determination. The portable strip steel surface cleaning on-line detection device realizes a test without shutdown. The test device has a simple structure, can be operated simply, can be used conveniently, is safe and reliable, can produce an accurate and objective test result of strip steel surface cleanliness and is portable.
Description
Technical field
The present invention relates to a kind of pick-up unit and method, belong to a kind of portable belt steel surface particularly and clean on-line measuring device and using method, be specially adapted to the method for cold-rolling continuous annealing, galvanizing unit belt steel surface cleanliness on-line checkingi.
Background technology
Belt steel surface cleanliness refer to the number of belt steel surface Residual oil and residue.Fast at nowadays cold rolling continuous unit speed, board surface quality is high, specification with under feature various in style, the plate face clean-up performance requirement of cold-rolled products to raw material improves day by day.The method measuring belt steel surface cleanliness has a lot, and the quantivative approach detecting the residual dirt of Cold-strip Steel Surface at present mainly contains weighing method, organic solvent embathes-mass method, emission spectrometry, fluorescence spectrophotometry etc.
Weighing method is the method for the surperficial residual dirt total amount of quantitative detection that current laboratory extensively adopts.Band steel sample irradiates through cleaning or laser removes surperficial residual dirt, after the band steel sampling before and after process, weigh with high precision balance, its difference is considered as the quality that surface of steel plate adsorbs residual dirt, includes emulsion, iron powder, grease and other adsorbate.
Organic solvent embathes-and mass method application is also comparatively extensive, and it is embathed surperficial grease to transfer in solvent, then in conjunction with the method detection zone steel surface fat content that balance weighs.
Emission spectrometry is that Elements Atom to be measured or ion and high energy particle collide, and is in excited state, launches corresponding atom or ion line, by the determination and analysis constituent content to spectral line when the atom of excited state or ion return ground state after absorbing energy.
Fluorescence spectrophotometry also can be used for belt steel surface cleanliness factor and detects.Strip cleaning totally samples afterwards, is sprayed on the surface of the band steel sample after cleaning by vaporific for fluorescent dye, because dyestuff can adsorb greasy dirt, so use fluorospectrophotometer can detect belt steel surface oleaginousness.
The quilitative method detecting the residual dirt of Cold-strip Steel Surface comprises reflectivity method, contact angle method, cyclic voltammetry, wipe method, water droplet method etc.
Reflectivity method, also claims film applicator coating, represents by L value.L value is larger, and reflectivity is higher, and surface is more clean.Be attached to the belt steel surface that need detect with a kind of special adhesive tape, the residual dirt of belt steel surface is adhered on adhesive tape, survey the reflectivity of adhesive tape with reflectivity detector, the sample numerical value recorded and standard specimen contrast can be obtained belt steel surface cleanliness factor.
Quantitative water droplet is being inspected on sample by contact angle method, and the size measuring water droplet and surface of the work contact angle by contact angle instrument evaluates a kind of method of specimen surface cleanliness.
Cyclic voltammetry utilizes standard three-electrode system, and Pt sheet is done electrode, and saturated calomel electrode is contrast electrode, and band steel print is as working electrode, and the cyclic voltammetry curve recorded may be used for the cleanliness factor evaluating belt steel surface.
Wipe method be by cleaning after band steel blank sheet of paper clean, according to the size of blank sheet of paper stain, shade judges strip cleaning effect.
Water droplet method is that under basis drops in the certain condition of solid surface drop volume, the diameter launching water droplet is larger, and shape more regular (circle), cleanliness factor is higher.
Above-mentioned quantitative measuring method precision is higher, and complicated operation needs to use relevant device, and qualitative test also needs to carry out when being with steel static, is not suitable for applying on quantity-produced unit.
General adopt mode of working continuously because band steel is produced, namely cleaning, annealing process, follow-up flattening process and coating process etc. connect together, and band steel directly enters annealing furnace not having kink to cushion after cleaning by degreasing.If shut down in order to detection zone steel surface clearness, band steel in stove will be caused all to scrap, even cause broken belt accident in stove, lose huge.But if do not shut down the evaluation adopting wipe method to carry out cleanliness, its result not only disturbing factor is more, makes accuracy low, and also there is serious potential safety hazard.
Tradition wipe method measuring tape steel surface clearness, uses blank sheet of paper to belt steel surface wiping and judges its clean-up performance.This method is comparatively large by interference from human factor, seems too simple and random, test result poor accuracy.
Look into and publish in document, have the report about cold-strip steel cleanliness on-line checkingi:
An instrument for continuous operating band steel surface clearness can be detected, comprise a handle, a fore-stock, an after-poppet, a stop means, two little wheel forks, two steamboats; Wherein, handle is connected with the top of fore-stock and after-poppet respectively, and stop means is connected with the middle part of fore-stock and after-poppet respectively, and little wheel fork connects the bottom of fore-stock and after-poppet respectively, and steamboat is arranged on little wheel fork respectively, and steamboat pastes adhesive tape respectively.This instrument can carry out surface clearness detection to continuous operating band steel, but device designed by this method is accurate on Stress control, does not have and reads steamboat and the function being with steel Contact pressure.
A kind of at tape steel cleanliness pick-up unit, this device comprises the first support, the second support, test paper, screw rod regulating mechanism, screw rod and detection block, and described screw rod regulating mechanism is arranged on described first support; One end of described screw rod is connected with described screw rod regulating mechanism, and the other end connects described detection block; Described second support is provided with two rotating cylinders, and the two ends of described test paper are respectively around on described two rotating cylinders; Described test paper can promote towards band steel by described detection block.This kind, at tape steel cleanliness pick-up unit, can realize the on-line checkingi to band steel cleanliness, and the replacing of test paper is convenient, effectively reduces potential safety hazard.
A kind of at tape steel cleanliness dynamic measurement device, comprise a pedestal; A connection piece, it is articulated on pedestal; One roller, it is loaded on web member upper end, and the centre of this roller roller surface is the plane of a projection.This design apparatus structure is simple, low cost of manufacture, working service are convenient, can realize operating the on-line dynamic measurement of belt steel surface cleanliness under the non-stop-machine state of production line.But clear and definite specification is not made to correlative factors such as test pressure, test duration and strip speeds when this device uses, the band steel test result difference of different surfaces cleanliness situation that is not obvious so that erroneous judgement may be caused like this to occur.
The detection of belt steel surface cleanliness has become one of key factor of restriction great surface quality cold-rolled products production, solves this difficult problem of belt steel surface cleanliness on-line checkingi extremely urgent.This patent is in addition perfect after the research action principle of such device and mechanical feature, first utilize air bag and tensimeter to achieve test component to contact with the strip the accurate control of pressure, this is core of the present invention and innovation, have no report at present, and before measuring to the test duration, strip speed scope makes requirement, take these regulations that disturbing factor is fluctuated and the impact of result is significantly reduced, realize test result accurate quantification, reach the irrealizable precise degrees of above-mentioned report.In addition, the present invention defines a kind of method of testing, and has extracted computing formula and the evaluation method of surface clearness by practice.Measurement for high-end Surface Cleanliness of Cold-rolled Sheet is provided data more accurately by the generation of this device and method of testing, produces surperficial highest-ranking product provide safeguard for cold rolling line.
Summary of the invention
The present invention is directed to the deficiency that prior art exists; there is provided one to carry out survey without the need to shutdown to wipe; and survey and wipe apparatus structure and simple to operate, easy to use; safe and reliable, through provided sign belt steel surface cleanliness result essence but, objective portable belt steel surface cleans on-line measuring device and using method
Realize the measure of above-mentioned purpose:
Portable belt steel surface cleans on-line measuring device, and comprise survey wiping cloth (rags), it is: survey wiping cloth (rags) is contained in inflatable ball exposed part by snap ring; At outer shell rigidity being housed and not closing of inflatable ball, handle is connected on shell; Shell is provided with and takes into account inflation inlet with the air pressure of inflatable ball UNICOM; Shell is provided with timer.
It is: the height that inflatable ball is exposed to shell is 1/3 to 1/5 of inflatable ball height.
It is: adopt hook-type structure or concaveconvex structure to be connected between snap ring with shell.
It is: the pressure in inflatable ball remains on 290 ~ 310KPa.
Portable belt steel surface cleans the using method of on-line measuring device, its step:
1) steel band speed is adjusted to 60 ~ 90m/min;
2) handheld portable belt steel surface cleans the handle of on-line measuring device, carries out surveying the place of wiping make the survey wiping cloth (rags) in inflatable ball be attached on steel plate at needs, surveys and wipes time controling at 8 ~ 10s;
3) shed by snap ring and take down survey wiping cloth (rags), calculating and wiped area by the survey of dirt contamination, and calculated, its formula is
S=t×d×v
In formula: S-expression is surveyed on wiping cloth (rags) and wiped area by the survey of dirt contamination, and unit is m
2,
The time is wiped in t-expression survey, and unit is s,
Circular pollution diameter on wiping cloth (rags) is surveyed in d-expression, and unit is m,
The travelling speed of v-expression band steel, unit m/s;
4) according to the reflectivity difference before and after following formulae discovery test cloth wiper cord steel
:
=R
1－R
2
In formula: R
1-represent that surveying wiping cloth (rags) center surveys the reflectivity after wiping,
R
2-represent that surveying wiping cloth (rags) center surveys the reflectivity before wiping;
5) according to the formula of following sign belt steel surface cleanliness, calculate belt steel surface and clean angle value, and judge:
In formula: C-for being with steel to clean angle value,
Evaluation method:
Above formula, when C value be less than>=50 time, characterize belt steel surface cleanliness good; As C value < 50, then characterize belt steel surface cleanliness poor, and C value is larger, characterize cleaning treatment and promote more remarkable to belt steel surface cleanliness, C value less sign belt steel surface cleanliness are poorer; Itself and R
1the size of value has close relationship.
The present invention compared with prior art, carries out survey wipe without the need to shutting down, and surveys and wipe apparatus structure and simple to operate, easy to use, safe and reliable, through provided sign belt steel surface cleanliness result essence but, objective, and to be easy to carry.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the structural representation of Fig. 1 housing;
Fig. 4 is the structural representation of snap ring in Fig. 1;
Fig. 5 surveys on wiping cloth (rags) by the shape figure of dirt contamination after surveying and wiping;
In figure: 1-survey wiping cloth (rags), 2-snap ring, 3-inflatable ball, 4-shell, 5-handle, 6-barometer, 7-inflation inlet, 8-timer, 9-buckle, 10-grab.
Embodiment
Below the present invention is described in detail:
Portable belt steel surface cleans on-line measuring device, comprises and surveys wiping cloth (rags) 1, and it surveys wiping cloth (rags) 1 is contained in inflatable ball 3 exposed part by snap ring 2; The shell 4 that rigidity is not closed is housed outside inflatable ball 3, and the height that inflatable ball 3 is exposed to shell 4 is 1/3 of inflatable ball 3 height; Handle 5 adopts welding or riveting on shell 4; Shell 4 is equipped with and the barometer 6 of inflatable ball 3 UNICOM and inflation inlet 7; Shell 4 is equipped with timer 8.
Adopt hook-type anatomical connectivity between snap ring 2 and shell 4, namely the upper surface of shell 4 adopt welding or overall processing have buckle 9, snap ring 2 along Zhou Caiyong welding or overall processing have the grab 10 matched with buckle 9.
For ensureing normal work, the pressure in inflatable ball 3 is made to remain on 290 ~ 310Pa.
The using method that the cleanliness that below belt steel surface is wiped in survey all clean on-line measuring device according to portable belt steel surface is carried out:
1) steel band speed is adjusted to 60 ~ 90m/min;
2) handheld portable belt steel surface cleans the handle of on-line measuring device, carries out surveying the place of wiping make the survey wiping cloth (rags) in inflatable ball be attached on steel plate at needs, surveys and wipes time controling at 8 ~ 10s;
3) shed by snap ring and take down survey wiping cloth (rags), calculating and wiped area by the survey of dirt contamination, and calculated, its formula is
S=t×d×v
In formula: S-expression is surveyed on wiping cloth (rags) and wiped area by the survey of dirt contamination, and unit is m
2,
The time is wiped in t-expression survey, and unit is s,
Circular pollution diameter on wiping cloth (rags) is surveyed in d-expression, and unit is m,
The travelling speed of v-expression band steel, unit m/s;
4) according to the reflectivity difference before and after following formulae discovery test cloth wiper cord steel
:
=R
1－R
2
In formula: R
1-represent that surveying wiping cloth (rags) center surveys the reflectivity after wiping,
R
2-represent that surveying wiping cloth (rags) center surveys the reflectivity before wiping;
5) according to the formula of following sign belt steel surface cleanliness, calculate belt steel surface and clean angle value, and judge:
In formula: C-for being with steel to clean angle value,
Evaluation method:
Above formula, when C value be less than>=50 time, characterize belt steel surface cleanliness good; As C value < 50, then characterize belt steel surface cleanliness poor, and C value is larger, characterize cleaning treatment and promote more remarkable to belt steel surface cleanliness, C value less sign belt steel surface cleanliness are poorer; Itself and R
1the size of value has close relationship.
Technique and situation list are wiped in the survey that table 1 is various embodiments of the present invention
As can be seen from the differentiation result of table 1, after adopting characterizing method of the present invention, the cleanliness before and after its strip cleaning, the increase rate of cleaning to band steel cleanliness all can quick and precisely obtain.
This embodiment is only the best and exemplifies, the restricted enforcement not to technical solution of the present invention.
Claims (5)
1. portable belt steel surface cleans on-line measuring device, comprises survey wiping cloth (rags), it is characterized in that: survey wiping cloth (rags) is contained in inflatable ball exposed part by snap ring; At outer shell rigidity being housed and not closing of inflatable ball, handle is connected on shell; Shell is provided with and takes into account inflation inlet with the air pressure of inflatable ball UNICOM; Shell is provided with timer.
2. portable belt steel surface as claimed in claim 1 cleans on-line measuring device, it is characterized in that: the height that inflatable ball is exposed to shell is 1/3 to 1/5 of inflatable ball height.
3. portable belt steel surface as claimed in claim 1 cleans on-line measuring device, it is characterized in that: adopt hook-type structure or concaveconvex structure to be connected between snap ring with shell.
4. portable belt steel surface as claimed in claim 1 cleans on-line measuring device, it is characterized in that: the pressure in inflatable ball remains on 290 ~ 310KPa.
5. portable belt steel surface cleans the using method of on-line measuring device, its step:
1) steel band speed is adjusted to 60 ~ 90m/min;
2) handheld portable belt steel surface cleans the handle of on-line measuring device, carries out surveying the place of wiping make the survey wiping cloth (rags) in inflatable ball be attached on steel plate at needs, surveys and wipes time controling at 8 ~ 10s;
3) shed by snap ring and take down survey wiping cloth (rags), calculating and wiped area by the survey of dirt contamination, and calculated, its formula is
S=t×d×v
In formula: S-expression is surveyed on wiping cloth (rags) and wiped area by the survey of dirt contamination, and unit is m
2,
The time is wiped in t-expression survey, and unit is s,
Circular pollution diameter on wiping cloth (rags) is surveyed in d-expression, and unit is m,
The travelling speed of v-expression band steel, unit m/s;
4) according to the reflectivity difference before and after following formulae discovery test cloth wiper cord steel
:
=R
1－R
2
In formula: R
1-represent that surveying wiping cloth (rags) center surveys the reflectivity after wiping,
R
2-represent that surveying wiping cloth (rags) center surveys the reflectivity before wiping;
5) according to the formula of following sign belt steel surface cleanliness, calculate belt steel surface and clean angle value, and judge:
In formula: C-for being with steel to clean angle value,
Evaluation method:
Above formula, when C value be less than>=50 time, characterize belt steel surface cleanliness good; As C value < 50, then characterize belt steel surface cleanliness poor, and C value is larger, characterize cleaning treatment and promote more remarkable to belt steel surface cleanliness, C value less sign belt steel surface cleanliness are poorer; Itself and R
1the size of value has close relationship.
Priority Applications (1)
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| CN201510843051.5A CN105486808B (en) | 2015-08-25 | 2015-11-27 | Portable tape steel surface cleans on-line measuring device and application method |
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| CN201510524863 | 2015-08-25 | ||
| CN2015105248633 | 2015-08-25 | ||
| CN201510843051.5A CN105486808B (en) | 2015-08-25 | 2015-11-27 | Portable tape steel surface cleans on-line measuring device and application method |
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| CN105486808B CN105486808B (en) | 2017-09-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335686A (en) * | 2017-09-04 | 2017-11-10 | 北京首钢冷轧薄板有限公司 | A kind of method for detecting strip cleaning performance |
| CN108072632A (en) * | 2018-02-09 | 2018-05-25 | 邯郸钢铁集团有限责任公司 | A kind of portable strip cleannes detection instrument and its detection method |
| CN109564164A (en) * | 2016-09-02 | 2019-04-02 | 冶金研究Asbl中心 | Increase the method and apparatus of the sensitivity of the on-line measurement of steel strip surface cleannes |
| CN111272966A (en) * | 2020-03-31 | 2020-06-12 | 马鞍山钢铁股份有限公司 | Hot-dip galvanized strip steel surface cleanliness detection device and detection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109564164A (en) * | 2016-09-02 | 2019-04-02 | 冶金研究Asbl中心 | Increase the method and apparatus of the sensitivity of the on-line measurement of steel strip surface cleannes |
| CN109564164B (en) * | 2016-09-02 | 2021-12-28 | 冶金研究Asbl中心 | Method and device for increasing sensitivity of online measurement of surface cleanliness of steel strip |
| CN107335686A (en) * | 2017-09-04 | 2017-11-10 | 北京首钢冷轧薄板有限公司 | A kind of method for detecting strip cleaning performance |
| CN107335686B (en) * | 2017-09-04 | 2019-10-29 | 北京首钢冷轧薄板有限公司 | A method of detection strip cleaning effect |
| CN108072632A (en) * | 2018-02-09 | 2018-05-25 | 邯郸钢铁集团有限责任公司 | A kind of portable strip cleannes detection instrument and its detection method |
| CN111272966A (en) * | 2020-03-31 | 2020-06-12 | 马鞍山钢铁股份有限公司 | Hot-dip galvanized strip steel surface cleanliness detection device and detection method thereof |
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|---|---|
| CN105486808B (en) | 2017-09-29 |
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