CN101082483A - Method for on-line testing the thick of color coated band steel coating film - Google Patents
Method for on-line testing the thick of color coated band steel coating film Download PDFInfo
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- CN101082483A CN101082483A CN 200610046811 CN200610046811A CN101082483A CN 101082483 A CN101082483 A CN 101082483A CN 200610046811 CN200610046811 CN 200610046811 CN 200610046811 A CN200610046811 A CN 200610046811A CN 101082483 A CN101082483 A CN 101082483A
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Abstract
This invention provides a sort of online test method of the film with color belt and steel coating, it includes the approach in that: (1)It adopts the electron meterage display instrument, and it progresses continuous check-up to the weight of the liquid coating. (2)It progress magnify, transform the weight of the liquid coating consumed by the coat and sampling quantificationally. (3)It uses the unit time to become the fiducial referent point of the consumption and balance of the coat, it makes the operational parameter which is in the production line, the original data and the process check data to deliver to the mathematic model processor, it progresses the calculation and transaction by the basal mathematic model which is translated by the dimension. (4)It exports the consumption figures of the coat and the film thickness figures of the coat. The investment of the equipment is a few, and its operation is simple and easy, its economical benefit is remarkable. This invention can realize the online closed loop check. It not only shortens the checking time and the feedback time, but also removes the error which is produced by the man-made operation, it makes the checking precision to improve from the primary minus or plus 1.5um to the minus or plus 0.5um, and avoids the color spreads belt and steel pollution which is worked by the man-made measured wet film and the secure hidden trouble. The jockey in the production progresses monitor to the coat film thickness in the production line and progresses adjust timely.
Description
Technical field
The invention belongs to band steel coating technology field, relate in particular to the online test method of cold-strip steel coating film thickness.
Background technology
Color coated steel sheet production is the finishing operation of iron and steel deep processing, the whole world have 500 surplus 70% adopt rolling method to produce in the color coating line.The thickness of production run floating coat all is to adjust control according to the film thickness value of measuring, and measurement thickness method commonly used comprises: artificial wet film instrument detects wet-film thickness, pressure transducer thickness measuring and X-ray thickness gauge thickness measuring.Wherein: artificial wet film instrument is existing main detection means, usually on the backing roll of application roller, measure, this need keep backing roll and application roller pressure constant, owing to seldom be with coating on the backing roll during band steel of the thick specification of application, cause measuring inaccurate, even measure less than wet film, on the band steel, measure again and can produce wet film instrument rat on the colored steel surface, increase final rejection number, adopt wet film instrument thickness measurement online in addition, the human factor influence is very big, need operating personnel to have suitable rich experience could guarantee thickness and precision, and safety coefficient is low, exists artificial band steel stained; What the pressure transducer thickness measuring was surveyed is indirect force value, and it is bigger to fluctuate, and lacks the pressure survey model; What X-ray thickness gauge was surveyed is build, and precision depends on mathematical model, cost an arm and a leg, and display error is big, and the plant maintenance amount is big.As for off-line dry film detection technique because sample interval, proving time and manual operation error etc. are former thereby cause feedback time long, detect untimely, error greatly, be not suitable for field control, and owing to be off-line check, certainly will increase sampling amount, prolong the production time, increase production cost.
During our original color coating line operation, at first set unit speed, setting and demarcation and be coated with motor speed and pressure, being sampled to control laboratory was checked after examination was coated with, and just can go out assay after waiting 20 fens.If qualified, just begin to produce; Thickness is defective, then continues examination and is coated with, till qualified.The thousands of at least units of loss that every examination is coated with once to be caused.Be coated with once calculating by per tour examination, nearly 1,000,000 yuan of annual loss.
Summary of the invention
The purpose of this invention is to provide a kind of weight, and go out the on-line quick detection method of coating film thickness value according to the unit interval consumption of coating with calculated with mathematical model by the measurement liquid coating.
The online test method of thick of color coated band steel coating film of the present invention is achieved in that this detection method comprises the following steps: 1. to adopt electrometer to measure heavy display instrument the weight of liquid coating is carried out continuous detecting; 2. the liquid coating gravimetric value signal that consumes is amplified, transforms helping detecting the gravimetric value of liquid coating fluid, and quantitative sampling, make the process detected value reliable and accurate; 3. with the unit interval as coating expending equilibrium reference point, production line operational factor (strip speed, production time and strip width), raw data (coating proportion, solids coatings rate and dilution rate), process are detected data (consuming the weight of coating) send into the mathematical model processor, carry out computing by the basic mathematic model that dimension transforms; 4. export film thickness value and the coating content that calculates, the micron thickness value of online demonstration and adjustment coating film thickness amount; Model dimension behind the basic mathematic model abbreviation that described dimension transforms is:
mg/m
2→(mg/min)/(m)÷(m/min)→mg/m
2
g/m
2→(g/min)/(m)÷(m/min)→g/m
2
μ m → (kg/min)/(m/min)/(m)/d (gravity constant) → μ m
The described mathematical model of the online test method of coating film thickness of the present invention is: coating thickness=coating weight/(strip speed * time * width * proportion) * solids coatings rate * dilution rate; The scope that electrometer of the present invention measures the weight detecting value of heavy display instrument is 0～300kg.
The present invention has changed original online build detection, online wet-film thickness detects and off-line thickness detection mode, increase electrometer in existing Bus in Color Coat Production Line and measured heavy display instrument, this weight sensing instrument can be measured the gross weight of the coating of reaching the standard grade, the weight of coating net weight after going bucket heavy and residue coating, measure the consumption of coating thus, handle back output thickness value by mathematical model again, realize that the online coating film thickness of color coated band steel detects.The present device small investment, simple, remarkable in economical benefits, and only need to add that corresponding program gets final product for the heavy display instrument of existing electrometer measurement according to described mathematical model.Adopt the present invention can realize that the line closed loop of coating unit detects, detection and feedback time have not only been shortened greatly, also can eliminate the error of artificial detection, accuracy of detection is brought up to ± 0.5 μ m by original ± 1.5 μ m, and the stained and potential safety hazard of Coil Coating Products of avoiding artificially measuring wet film and being caused.The operative employee can monitor the production line coating thickness at any time in the production, and in time adjusts, to guarantee the quality of product.
Embodiment
The present invention is further described by the following embodiment.
The present invention measures heavy display instrument by electrometer and measures coating unit interval expendable weight, and value combined with the production line data, finish the detection of online thickness amount, carry out data output by output device again, the micron thickness value of online demonstration coating film thickness, poor according to shown film thickness value and desired value adjusted the coating film thickness value, thereby realizes the online film thickness monitoring that color coating is produced then.
The present invention is an example to produce 0.40 * 1060mm lime Coil Coating Products, and the machine of being coated with is an inverse roller coating, sets topcoat thickness desired value: 15 μ m, unit strip speed: 90m/min, roller speed: 100m/min, pressure: be initially set 2.2KN, the production time: 3 minutes.The weight that obtains consuming coating after the electronics weight sensing instrument detects is 11kg, and the mathematical model processor is handled the mathematical model of following coating film thickness: coating film thickness=coating weight/(strip speed * production time * strip width * coating proportion) * solids coatings rate * dilution rate.Known: as strip speed=90m/min, production time=3 minute, strip width=1060mm, coating proportion=1.35, solids coatings rate=68%, dilution rate=88%, to consume the weight=11kg of coating, draw: coating film thickness μ m=11/ (90m/min * 3min * 1.06 * 1.35) * 68% * 88%/1000=17.0 μ m.Electrometer measures heavy display instrument display screen, and just to demonstrate the coating film thickness value automatically be 17 μ m.Than the thick 2 μ m of desired value 15 μ m, the operative employee detects after taking to adjust measures such as roll gap or roller speed immediately more again.The coating consumption that recorded 3 minutes is 9.7kg, handles drawing through calculated with mathematical model: coating film thickness μ m=9.7/ (90m/min * 3min * 1.06 * 1.35) * 68% * 88%/1000=15.0 μ m.Just demonstrating the coating film thickness value on the display screen automatically is 15 μ m.Make Coil Coating Products topcoat thickness consistent by detection and control with desired value.Detection method of the present invention is not only applicable to the finish paint of Coil Coating Products, is equally applicable to back of the body lacquer and priming paint, is applicable to color coating pre-treatment roller coat passivation etc. yet.It mainly is in order to improve its accuracy of detection that the present invention is made as 0～300kg with the scope of the weight detecting value of electronics gauge.
Claims (4)
1. the online test method of a thick of color coated band steel coating film is characterized in that this detection method comprises the following steps: 1. to adopt electrometer to measure heavy display instrument the weight of liquid coating is carried out continuous detecting; 2. the liquid coating gravimetric value to coating consumption amplify, conversion and quantitative sampling; 3. with the unit interval as coating consumption balance reference point, production line operational factor, raw data and process are detected data send into the mathematical model processor, carry out computing by the basic mathematic model that dimension transforms; 4. export the film thickness value that calculates; Model dimension behind the basic mathematic model abbreviation that described dimension transforms is:
mg/m
2→(mg/min)/(m)÷(m/min)→mg/m
2
g/m
2→(g/min)/(m)÷(m/min)→g/m
2
μ m → (kg/min)/(m/min)/(m)/d (gravity constant) → μ m
2. the online test method of thick of color coated band steel coating film according to claim 1, it is characterized in that described production line operational factor comprises strip speed, production time and strip width, described raw data comprises reach the standard grade coating proportion, solids coatings ratio and dilution rate, and described process detects data and comprises the weight that consumes coating.
3. the online test method of thick of color coated band steel coating film according to claim 1 is characterized in that described mathematical model is: coating thickness=coating weight/(strip speed * time * width * proportion) * solids coatings ratio * dilution rate.
4. the online test method of thick of color coated band steel coating film according to claim 1 is characterized in that the scope that described electrometer measures the weight detecting value of heavy display instrument is 0～300kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046811 CN101082483A (en) | 2006-06-01 | 2006-06-01 | Method for on-line testing the thick of color coated band steel coating film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046811 CN101082483A (en) | 2006-06-01 | 2006-06-01 | Method for on-line testing the thick of color coated band steel coating film |
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| CN101082483A true CN101082483A (en) | 2007-12-05 |
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| CN 200610046811 Pending CN101082483A (en) | 2006-06-01 | 2006-06-01 | Method for on-line testing the thick of color coated band steel coating film |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041966A (en) * | 2011-10-17 | 2013-04-17 | 宝山钢铁股份有限公司 | Method for producing ultra-thick insulating coating on surface of electrical steel |
| CN101968416B (en) * | 2009-07-28 | 2013-10-02 | 上海宝钢工业检测公司 | Method for detecting weight of fingerprint resistant film of fingerprint-resistant electro-galvanized sheet |
| CN104615155A (en) * | 2015-02-13 | 2015-05-13 | 北京京诚之星科技开发有限公司 | Automatic control system for thickness of powder coating |
| CN104655073A (en) * | 2015-01-12 | 2015-05-27 | 深圳市湘津石仪器有限公司 | Method for quickly determining functional coating thickness parameters |
| CN104677260A (en) * | 2013-11-27 | 2015-06-03 | 上海宝钢工业技术服务有限公司 | Online color-coated sheet film thickness detection system |
| CN104677852A (en) * | 2013-11-27 | 2015-06-03 | 上海宝钢工业技术服务有限公司 | Strip steel magnesium oxide coating quality online detection system |
| CN106152928A (en) * | 2015-04-08 | 2016-11-23 | 杭州西奥电梯有限公司 | A kind of hoistway door plate coating thickness on-line detecting system |
| CN106706462A (en) * | 2017-03-13 | 2017-05-24 | 湖北富亿建材股份有限公司 | High-polymer waterproof coiled material quality monitoring facility |
| CN106926002A (en) * | 2017-05-16 | 2017-07-07 | 响水蓝天彩钢有限公司 | A kind of roller coat integral type color steel tile process units |
| CN110108218A (en) * | 2019-05-20 | 2019-08-09 | 成都中电熊猫显示科技有限公司 | Spit the adjustment system of glue rate |
| CN113743038A (en) * | 2021-09-17 | 2021-12-03 | 燕山大学 | Wet film thickness regulation and control method |
| CN114034272A (en) * | 2021-11-02 | 2022-02-11 | 广东博盈特焊技术股份有限公司 | Method for measuring and calculating weld penetration depth |
| CN117113008A (en) * | 2023-10-23 | 2023-11-24 | 北京华力兴科技发展有限责任公司 | X-ray-based plate thickness measuring method |
-
2006
- 2006-06-01 CN CN 200610046811 patent/CN101082483A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968416B (en) * | 2009-07-28 | 2013-10-02 | 上海宝钢工业检测公司 | Method for detecting weight of fingerprint resistant film of fingerprint-resistant electro-galvanized sheet |
| CN103041966B (en) * | 2011-10-17 | 2014-12-24 | 宝山钢铁股份有限公司 | Method for producing ultra-thick insulating coating on surface of electrical steel |
| US9406416B2 (en) | 2011-10-17 | 2016-08-02 | Baoshan Iron & Steel Co., Ltd | Method of producing extremely thick insulation coating on surface of electrical steel |
| CN103041966A (en) * | 2011-10-17 | 2013-04-17 | 宝山钢铁股份有限公司 | Method for producing ultra-thick insulating coating on surface of electrical steel |
| CN104677260A (en) * | 2013-11-27 | 2015-06-03 | 上海宝钢工业技术服务有限公司 | Online color-coated sheet film thickness detection system |
| CN104677852A (en) * | 2013-11-27 | 2015-06-03 | 上海宝钢工业技术服务有限公司 | Strip steel magnesium oxide coating quality online detection system |
| CN104655073B (en) * | 2015-01-12 | 2017-08-04 | 深圳市湘津石仪器有限公司 | A kind of method of quick determination functional coating thickness parameter |
| CN104655073A (en) * | 2015-01-12 | 2015-05-27 | 深圳市湘津石仪器有限公司 | Method for quickly determining functional coating thickness parameters |
| CN104615155A (en) * | 2015-02-13 | 2015-05-13 | 北京京诚之星科技开发有限公司 | Automatic control system for thickness of powder coating |
| CN106152928A (en) * | 2015-04-08 | 2016-11-23 | 杭州西奥电梯有限公司 | A kind of hoistway door plate coating thickness on-line detecting system |
| CN106706462A (en) * | 2017-03-13 | 2017-05-24 | 湖北富亿建材股份有限公司 | High-polymer waterproof coiled material quality monitoring facility |
| CN106926002A (en) * | 2017-05-16 | 2017-07-07 | 响水蓝天彩钢有限公司 | A kind of roller coat integral type color steel tile process units |
| CN110108218A (en) * | 2019-05-20 | 2019-08-09 | 成都中电熊猫显示科技有限公司 | Spit the adjustment system of glue rate |
| CN110108218B (en) * | 2019-05-20 | 2021-04-20 | 成都中电熊猫显示科技有限公司 | Adjusting system for glue dispensing rate |
| CN113743038A (en) * | 2021-09-17 | 2021-12-03 | 燕山大学 | Wet film thickness regulation and control method |
| CN113743038B (en) * | 2021-09-17 | 2023-07-14 | 燕山大学 | Wet film thickness regulating and controlling method |
| CN114034272A (en) * | 2021-11-02 | 2022-02-11 | 广东博盈特焊技术股份有限公司 | Method for measuring and calculating weld penetration depth |
| CN117113008A (en) * | 2023-10-23 | 2023-11-24 | 北京华力兴科技发展有限责任公司 | X-ray-based plate thickness measuring method |
| CN117113008B (en) * | 2023-10-23 | 2024-01-09 | 北京华力兴科技发展有限责任公司 | X-ray-based plate thickness measuring method |
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Open date: 20071205 |