CN103674834A - Rapid detection method for surface oxide scale adhesion of hot rolling strip steel - Google Patents
Rapid detection method for surface oxide scale adhesion of hot rolling strip steel Download PDFInfo
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- CN103674834A CN103674834A CN201310648949.8A CN201310648949A CN103674834A CN 103674834 A CN103674834 A CN 103674834A CN 201310648949 A CN201310648949 A CN 201310648949A CN 103674834 A CN103674834 A CN 103674834A
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- adhesive tape
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Abstract
The invention discloses a rapid detection method for surface oxide scale adhesion of hot rolling strip steel, and the rapid detection method comprises the following steps: 1) taking the hot rolling strip steel to prepare a test sample, and cleaning the surface of the test sample; 2) taking an adhesive tape with an adhesive function and with a size smaller than the test sample size, calculating the area S of the adhesive tape, and weighing the weight m1 of the adhesive tape; 3) pasting the adhesive tape closely to one side of the test sample, then bending the test sample for testing with the adhesive tape pasted side of the test sample being a bending outer surface and with the bending angle alpha being 5-180 degrees; 4) removing the adhesive tape from the surface of the bend test sample, weighing the weight m2 of the adhesive tape adhering with oxide scales, calculating the weight difference m2-m1 of the adhesive tape after pasting and the adhesive tape before pasting; and 5) characterizing the oxide scale adhesion with (m2-m1) / S namely, the ratio of the weight difference of the adhesive tape after pasting and the adhesive tape before pasting to the area of the adhesive tape before pasting. The rapid detection method has the advantages of high detection accuracy, rapid determination of the oxide scale adhesion strength and simple detection process, and is suitable for industrial production and application.
Description
Technical field
The present invention relates to metallurgical technology, refer to particularly a kind of method for quick of Surfaces of Hot Rolled Strip iron scale tack.
Background technology
The classic method of removing Surfaces of Hot Rolled Strip iron scale is to adopt pickling, in recent years, raising along with environmental protection and energy-conservation requirement, user requires to provide directly punching press to exempt from the steel plate of pickling, therefore, hot rolling being exempted to the research of pickling steel technology arises at the historic moment, its object is exactly by the control to Surfaces of Hot Rolled Strip scale structure and thickness, make scale on surface there is good adhesion, when carrying out the cold working such as cold roll forming, scale on surface is still attached to belt steel surface, without adopting the method for ball blast or pickling, scale on surface is removed, this product is after the paint coating through follow-up, outward appearance to product, PASS and decay resistance are all without impact.
In exempting from the exploitation of pickling steel technology, tack how to evaluate scale on surface is one of its gordian technique, two kinds of methods of normal employing are carried out comprehensive evaluation at present: the first is to adopt scanning electron microscope to carry out structure analysis and thickness measure to belt steel surface iron scale, with this, judge the tack of iron scale, there is the shortcoming that sampling, sample preparation and detection time are long, cost is larger in this method, be only suitable in laboratory study, be unsuitable for large detection of producing, the second is to adopt cold bend test to survey the method for the iron scale area that comes off, as: in CN102107223A, first on band steel, get a sample, adopt the method for three-point bending to carry out bending test, then use tape-stripping specimen surface, finally adopt image analytical method to judge the tack of iron scale, in this method, because adhesive tape in cold-bending deformation process is along with sample deforms, after the adhesive tape of tearing, adhesive tape shape is irregular, in image processing process subsequently, measuring accuracy is difficult to guarantee, in addition, in image processing process, because the iron scale color coming off is close with matrix color, measuring accuracy is subject to the interference of matrix color, and, in process of the test, specimen size, adhesive tape adhesion, adhesive tape extensibility, sample angle of bend, Bend diameter, and the deviation in these key parameters settings of pressing speed easily causes the error of detected value, therefore, this method error is larger, the testing result fluctuation obtaining is larger, can not accurately judge the tack of iron scale.
Summary of the invention
Object of the present invention is exactly the method for quick that a kind of Surfaces of Hot Rolled Strip iron scale tack will be provided, and the method accuracy of detection is high, fast, convenient.
For achieving the above object, the technical solution used in the present invention is: a kind of method for quick of Surfaces of Hot Rolled Strip iron scale tack, comprises the following steps:
1) cut hot-strip and make after sample, by its surperficial wiped clean;
2) get and there is the adhesive tape that paste functionality and size are less than specimen size, calculate the area S of adhesive tape, and weigh the weight m of adhesive tape
1;
3) adhesive tape is close to the one side of sample, then sample is carried out to bending test, making the one side that sample is taped is crooked outer surface, and bent angle alpha is 5 °～180 °;
4) adhesive tape of tearing from bend specimen surface, weighs the adhesive tape weight m that this adhesive tape has iron scale
2, the weight difference m after calculating tape-stripping and before pasting
2-m
1;
5) with long-pending ratio (m before the weight difference after tape-stripping and before pasting and tape-stripping
2-m
1)/S characterizes the tack of iron scale.
Further, in described step 3), sample is placed in to the enterprising line bend test of three point bending test machine, bending radius is R, and t is sample thickness, 1.5t≤R≤2t; It is 1～5mm/s that the pressure head of Apparatus for Bending at low-temp is depressed speed.
Further, described step 2) in, extensibility>=3% of described adhesive tape, adhesion>=0.3 * 10 of described adhesive tape
-3mPa.
Further, in described step 1), described sample is square, long 150～300mm, wide 70～200mm.
Further, in described step 3), the bent angle alpha of sample is 5 °～90 °.
Further, described step 2) and in step 4), weighing precision >=0.1mg.
Compared with prior art, the present invention has the following advantages:
One, the weight area percentage of the scale on surface that the present invention comes off with specimen strip characterizes the power of belt steel surface iron scale tack, for the tack of scale on surface provides a kind of new evaluation method.
They are two years old, compare by the detection iron scale area that comes off and characterize the existing method of iron scale tack, the inventive method has been got rid of specimen size, adhesive tape adhesion, adhesive tape extensibility, angle of bend, Bend diameter and the impact of these test parameterss of pressing speed on testing result degree of accuracy, therefore, it is high that the inventive method has accuracy in detection, can judge fast that iron scale tack is strong and weak, and the simple advantage of testing process, be applicable to suitability for industrialized production and application.
Accompanying drawing explanation
Fig. 1 is for carrying out the trystate schematic diagram of bending test to hot-strip sample.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, be convenient to more clearly understand the present invention, but they do not form restriction to the present invention.
A method for quick for Surfaces of Hot Rolled Strip iron scale tack, comprises the following steps:
1) cut hot-strip and make square sample, the long preferably 150～300mm of specimen size, wide preferably 70～200mm, with alcohol by its surperficial wiped clean;
2) get and there is the adhesive tape that paste functionality and size are less than specimen size, calculate the area S of adhesive tape, and with micro-balance of weighing precision>=0.1mg, weigh the weight m of adhesive tape
1, wherein, extensibility>=3% of this adhesive tape, adhesion>=0.3 * 10 of adhesive tape
-3mPa;
3) adhesive tape is close to the one side of sample, then sample is placed in to the enterprising line bend test of three point bending test machine, making the one side that sample is taped is crooked outer surface, preferably 5 °～180 ° of the angle of bend of sample, more preferably 5 °～90 °, wherein, bending radius is R, t is sample thickness, and both meet relational expression: 1.5t≤R≤2t, and the pressure head of Apparatus for Bending at low-temp is depressed preferably 1～5mm/s of speed;
4) adhesive tape of tearing from bend specimen surface, weighs with micro-balance of weighing precision>=0.1mg the adhesive tape weight m that this adhesive tape has iron scale
2, the weight difference m after calculating tape-stripping and before pasting
2-m
1;
5) with long-pending ratio (m before the weight difference after tape-stripping and before pasting and tape-stripping
2-m
1)/S characterizes the tack of iron scale.
Embodiment 1
1) heat-obtaining rolls automotive frame steel band WL510, produces long 200mm, wide 100mm, and the hot-strip sample that thickness is 5mm, and clean whole specimen surface with alcohol;
2) get the adhesive tape with paste functionality, this adhesive tape plastic deformation ability, the extensibility of adhesive tape is 4%, adhesive tape adhesion is 0.3 * 10
-3mPa, the long 150mm of this adhesive tape, wide 80mm, the area that calculates this adhesive tape is S=120cm
2, and the micro-balance measurement that is 0.1mg by measuring accuracy goes out the weight m of this adhesive tape
1=7.2mg;
3) as shown in Figure 1, the one side of adhesive tape 2 being close to sample 1, then sample 1 is placed in to the enterprising line bend test of three point bending test machine 3, making the one side that sample 1 is taped is crooked outer surface, wherein, bent angle alpha is 90 °, radius of curvature R=8mm(R=d/2, d is bending diameter), the speed of depressing of pressure head 4 is 2mm/s;
4) complete after the flexural deformation of sample, the adhesive tape of tearing from bend specimen surface, weighs the adhesive tape weight m that this adhesive tape has iron scale
2=56.2mg, the weight difference m after calculating tape-stripping and before pasting
2-m
1=49.0mg;
5) with long-pending ratio (m before the weight difference after tape-stripping and before pasting and tape-stripping
2-m
1)/S characterizes the tack of iron scale, (m
2-m
1)/S=49.0mg/120cm
2=0.408mg/cm
2, with the tack of this sample hot-strip of this numerical representation method, and by (the m recording with other sample
2-m
1)/S numerical value or standard compare, and the grade that can determine specimen surface iron scale tack is 1.0 grades.
Claims (6)
1. a method for quick for Surfaces of Hot Rolled Strip iron scale tack, comprises the following steps:
1) cut hot-strip and make after sample, by its surperficial wiped clean;
2) get and there is the adhesive tape that paste functionality and size are less than specimen size, calculate the area S of adhesive tape, and weigh the weight m of adhesive tape
1;
3) adhesive tape is close to the one side of sample, then sample is carried out to bending test, making the one side that sample is taped is crooked outer surface, and bent angle alpha is 5 °～180 °;
4) adhesive tape of tearing from bend specimen surface, weighs the adhesive tape weight m that this adhesive tape has iron scale
2, the weight difference m after calculating tape-stripping and before pasting
2-m
1;
5) with long-pending ratio (m before the weight difference after tape-stripping and before pasting and tape-stripping
2-m
1)/S characterizes the tack of iron scale.
2. the method for quick of Surfaces of Hot Rolled Strip iron scale tack according to claim 1, it is characterized in that: in described step 3), sample is placed in to the enterprising line bend test of three point bending test machine, bending radius is R, t is sample thickness, 1.5t≤R≤2t; It is 1～5mm/s that the pressure head of Apparatus for Bending at low-temp is depressed speed.
3. the method for quick of Surfaces of Hot Rolled Strip iron scale tack according to claim 1 and 2, is characterized in that: described step 2), and extensibility>=3% of described adhesive tape, adhesion>=0.3 * 10 of described adhesive tape
-3mPa.
4. the method for quick of Surfaces of Hot Rolled Strip iron scale tack according to claim 1 and 2, is characterized in that: in described step 1), described sample is square, long 150～300mm, wide 70～200mm.
5. the method for quick of Surfaces of Hot Rolled Strip iron scale tack according to claim 1 and 2, is characterized in that: in described step 3), the bent angle alpha of sample is 5 °～90 °.
6. the method for quick of Surfaces of Hot Rolled Strip iron scale tack according to claim 1 and 2, is characterized in that: described step 2) and in step 4), and weighing precision >=0.1mg.
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|---|---|---|---|
| CN201310648949.8A CN103674834A (en) | 2013-12-04 | 2013-12-04 | Rapid detection method for surface oxide scale adhesion of hot rolling strip steel |
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|---|---|---|---|
| CN201310648949.8A CN103674834A (en) | 2013-12-04 | 2013-12-04 | Rapid detection method for surface oxide scale adhesion of hot rolling strip steel |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792694A (en) * | 2015-03-30 | 2015-07-22 | 四川长虹电器股份有限公司 | Gold-stamping adhesion force detection method |
| CN105203451A (en) * | 2015-09-18 | 2015-12-30 | 福建蓝海黑石科技有限公司 | Representation method for cohesion of coating |
| CN105628607A (en) * | 2015-12-29 | 2016-06-01 | 首钢总公司 | Oxide scale binding force representation method |
| CN107076660A (en) * | 2014-11-06 | 2017-08-18 | 赛峰航空器发动机 | Peel test device |
| CN107167422A (en) * | 2017-03-27 | 2017-09-15 | 首钢京唐钢铁联合有限责任公司 | Method for detecting adhesion of zinc layer of automobile sheet |
| CN107505260A (en) * | 2017-09-12 | 2017-12-22 | 沈阳来金汽车零部件有限公司 | Galvanized steel plain sheet zinc coat adheres to force checking device and detection method |
| CN107655829A (en) * | 2017-10-23 | 2018-02-02 | 新冶高科技集团有限公司 | A kind of device and method for quantitative measuring for measuring adhesive force |
| CN107705285A (en) * | 2017-07-21 | 2018-02-16 | 首钢集团有限公司 | A kind of characterizing method of surface of steel plate iron scale adhesion |
| CN109827861A (en) * | 2019-01-29 | 2019-05-31 | 江苏省沙钢钢铁研究院有限公司 | Method for detecting peeling performance of hot-rolled wire rod oxide skin |
| CN110082492A (en) * | 2019-04-25 | 2019-08-02 | 宣化钢铁集团有限责任公司 | Wire rod iron scale mechanical stripping performance test methods |
| CN110361322A (en) * | 2019-06-12 | 2019-10-22 | 南京钢铁股份有限公司 | A method of test hot rolled steel plate surface oxidation skin and matrix bonding force |
| CN111678862A (en) * | 2020-05-28 | 2020-09-18 | 江森自控日立万宝压缩机（广州）有限公司 | Stator and detection method for slot varnish adhesion effect of stator |
| CN112394001A (en) * | 2020-10-27 | 2021-02-23 | 中国石油天然气集团有限公司 | Method and system for detecting and evaluating oxide skin of petroleum steel pipe |
| CN112557298A (en) * | 2019-09-26 | 2021-03-26 | 上海梅山钢铁股份有限公司 | Method for detecting surface adhesive force of cold-rolled electroplated tin steel plate |
| CN113848304A (en) * | 2020-06-28 | 2021-12-28 | 中国石油天然气股份有限公司 | Method for inspecting pipeline surface treatment quality |
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| JP2002005817A (en) * | 2000-06-16 | 2002-01-09 | Mitsubishi Heavy Ind Ltd | Coating film adhesion evaluating method and device therefor and electrode plate manufacturing method |
| CN1755350A (en) * | 2004-09-29 | 2006-04-05 | 宝山钢铁股份有限公司 | Apparatus and method for testing coherence of steel sheet zinc coating |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076660A (en) * | 2014-11-06 | 2017-08-18 | 赛峰航空器发动机 | Peel test device |
| CN104792694A (en) * | 2015-03-30 | 2015-07-22 | 四川长虹电器股份有限公司 | Gold-stamping adhesion force detection method |
| CN105203451A (en) * | 2015-09-18 | 2015-12-30 | 福建蓝海黑石科技有限公司 | Representation method for cohesion of coating |
| CN105628607A (en) * | 2015-12-29 | 2016-06-01 | 首钢总公司 | Oxide scale binding force representation method |
| CN107167422A (en) * | 2017-03-27 | 2017-09-15 | 首钢京唐钢铁联合有限责任公司 | Method for detecting adhesion of zinc layer of automobile sheet |
| CN107705285A (en) * | 2017-07-21 | 2018-02-16 | 首钢集团有限公司 | A kind of characterizing method of surface of steel plate iron scale adhesion |
| CN107505260B (en) * | 2017-09-12 | 2019-07-23 | 沈阳来金汽车零部件有限公司 | Galvanized steel plain sheet zinc coat adheres to force checking device and detection method |
| CN107505260A (en) * | 2017-09-12 | 2017-12-22 | 沈阳来金汽车零部件有限公司 | Galvanized steel plain sheet zinc coat adheres to force checking device and detection method |
| CN107655829A (en) * | 2017-10-23 | 2018-02-02 | 新冶高科技集团有限公司 | A kind of device and method for quantitative measuring for measuring adhesive force |
| CN109827861A (en) * | 2019-01-29 | 2019-05-31 | 江苏省沙钢钢铁研究院有限公司 | Method for detecting peeling performance of hot-rolled wire rod oxide skin |
| CN110082492A (en) * | 2019-04-25 | 2019-08-02 | 宣化钢铁集团有限责任公司 | Wire rod iron scale mechanical stripping performance test methods |
| CN110361322A (en) * | 2019-06-12 | 2019-10-22 | 南京钢铁股份有限公司 | A method of test hot rolled steel plate surface oxidation skin and matrix bonding force |
| CN112557298A (en) * | 2019-09-26 | 2021-03-26 | 上海梅山钢铁股份有限公司 | Method for detecting surface adhesive force of cold-rolled electroplated tin steel plate |
| CN111678862A (en) * | 2020-05-28 | 2020-09-18 | 江森自控日立万宝压缩机（广州）有限公司 | Stator and detection method for slot varnish adhesion effect of stator |
| CN111678862B (en) * | 2020-05-28 | 2022-07-12 | 江森自控日立万宝压缩机（广州）有限公司 | Stator and detection method for slot varnish adhesion effect of stator |
| CN113848304A (en) * | 2020-06-28 | 2021-12-28 | 中国石油天然气股份有限公司 | Method for inspecting pipeline surface treatment quality |
| CN113848304B (en) * | 2020-06-28 | 2024-04-30 | 中国石油天然气股份有限公司 | Inspection method for pipeline surface treatment quality |
| CN112394001A (en) * | 2020-10-27 | 2021-02-23 | 中国石油天然气集团有限公司 | Method and system for detecting and evaluating oxide skin of petroleum steel pipe |
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Application publication date: 20140326 |
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