CN102507355A - Detection method of plating binding quality of metallic film - Google Patents
Detection method of plating binding quality of metallic film Download PDFInfo
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- CN102507355A CN102507355A CN2011103787119A CN201110378711A CN102507355A CN 102507355 A CN102507355 A CN 102507355A CN 2011103787119 A CN2011103787119 A CN 2011103787119A CN 201110378711 A CN201110378711 A CN 201110378711A CN 102507355 A CN102507355 A CN 102507355A
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Abstract
The invention relates to the metal plating technology, and provides a detection method of plating binding quality of a metallic film. The detection method comprises the steps of: carrying out impress loading on a sample to be tested by using a Vickers hardness tester; comparing appearance of the plating with observed impress points with a reference map, and evaluating the level of the plating binding quality. The technical scheme has low dimensional limit, is suitable for research and judgment of plating binding quality of thin materials and small-size samples, and is also suitable for testing large-size samples; the sample is loaded by using a Vickers pressing head, and the testing is carried out by using the Vickers hardness tester, thus approximate nondestructive test is realized and the integral appearance of the product is not influenced; impress testing is carried out by using the Vickers hardness tester, the load size, loading rate and load retention time can be accurately controlled, the influence of the test conditions is low and the testing has good repeatability; and finally, the scheme can directly use a standard microhardness Vickers hardness tester to test, the operation is simple, convenient and quick, special instruments are not needed, and the method is economical and practical and has good universality.
Description
Technical field
The present invention relates to the metal coating technology, relate to a kind of metallic film coating bond quality detection method especially.
Background technology
The metal and the plastic shell of electronic product use now; It is attractive in appearance in order to increase, corrosion resistance and wearing quality; Generally all to pass through surface treatment; Plating and electroless plating and PVD, thin film techniques such as CVD have obtained widespread use on the consumption electronic product shell, and wherein the bond quality of thin film coating is most important to the reliability of product surface.
The analysis method of coating bond quality in the past; Be main with scarification, hundred lattice methods mainly, the restriction of these method tested person conditions and personnel operation is like the depth of cut, evenly; Situation such as hundred lattice adhesive tape bonding effects; Test repeatability is relatively poor, and test environment such as temperature, humidity are had very strict requirement, and belongs to destructive testing.
The Rockwell indentation method of describing among the Germany slip-stick artist handbook VDI3198, VDI 3198 disclosed method of testings are to adopt Rockwell hardometer that sample is loaded to form spherical impression, and pressure head passes coating and is pressed into surface of bottom material; Make coating and ground generation mechanically deform, when having defectives such as unrelieved stress, layering, micro-crack between coating and ground, as shown in Figure 1; It is thin film coating inefficacy schematic diagram; Coming off in various degree and cracking phenomena can appear in coating, and with the bond quality that gets final product qualitative comparison coating with reference to the collection of illustrative plates contrast, the method can realize accurate control to load; Good reproducibility, easy and simple to handle.
Existing Rockwell impression test coating bond quality method is to form impression through the Rockwell pressure head at sample surfaces, and following shortcoming is arranged:
Use the Rockwell pressure head instrument--the load of Rockwell hardometer is bigger, the minimum load that general on the market Rockwell hardometer uses is 15kgf, generally all can form bigger impression the sample overall appearance is had a significant effect, and belongs to destructive testing;
In addition; The degree of depth that is pressed into sample is darker; Influence test result for guaranteeing not occur bending and deformation in the sample loading procedure,, during test base material thickness is had requirement according to the indentation method requirement; Require depth of cup to be less than 1/10 of thickness of sample, be not suitable for surveying thin material or the small sample below the 1mm, complex-shaped product etc. so the Rockwell indentation method is fit to large sample;
As will change these defectives and then will use special loading system, reduce loaded load, need to use special instrument and equipment, this just improves the cost of realizing this method of testing greatly, and economic and practical is low.
Summary of the invention
The technical matters that the present invention solves has been to provide a kind of detection method of metallic film coating bond quality, to realize the detection problem of thin material or small sample metallic film coating bond quality.
For addressing the above problem, the invention provides a kind of detection method of metallic film coating bond quality, comprise,
Use Vickers to treat specimen and carry out the impression loading;
With the coating morphology of observed impression point with compare evaluation coating bond quality rank with reference to collection of illustrative plates.
Further, carry out also comprising before impression loads using Vickers to treat specimen,
After carrying out the clean processing of sample to be tested, sample to be tested is carried out support fixation;
Above-mentioned method wherein, carrying out impression when loading, is selected different load according to thickness of coating, and the load of setting should reach depth of cup can penetrate coating and depth of cup less than 1/10 of sample gross thickness.
Above-mentioned method, wherein, said impression is positive rectangular pyramid impression.
Above-mentioned method wherein, loads 5 impressions at least on this specimen, the spacing of each impression is greater than the catercorner length of 5 impressions, and each impression is greater than the catercorner length of 5 impressions apart from the distance of sample edge.
Above-mentioned method wherein, is used the observation by light microscope impression, with the coating morphology of observed impression point and compare with reference to collection of illustrative plates.
Above-mentioned method, wherein, if the coating bond quality of each impression position is all more than 4 grades, sample is judged to qualified; Otherwise, be judged to be defective.
Adopt technical scheme of the present invention, little to the restriction of size, can be fit to studying and judging of thin material and small sample coating bond quality, also can carry out the test of large scale sample;
Further, use the Vickers pressure head that sample is loaded, can use the Vickers test, can realize approximate non-destructive testing, do not influence the product overall appearance;
Further, use Vickers to carry out impression test, accurately the size of control loaded load, loading velocity, load retention time, the tested person condition effect is little, the repeating of test;
At last, this scheme can directly realize test with little microhardness Vickers of standard, and is simple and efficient to handle, need not use specialized equipment, and economical and practical, versatility is good.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is a thin film coating inefficacy schematic diagram;
Fig. 2 is coating bond quality test philosophy figure;
Fig. 3 is an embodiment of the invention process flow diagram;
Fig. 4 is that the grading of coating bond quality is with reference to collection of illustrative plates.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearer, clear,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention provides a kind of detection method of metallic film coating bond quality, and is as shown in Figure 2, is coating bond quality test philosophy figure.Use Vickers that the Vickers pressure head is pressed into coating surface with presetting load, pressure head passes coating and is pressed into surface of bottom material, makes coating and ground generation mechanically deform; When having defectives such as unrelieved stress, layering, micro-crack between coating and ground; Cracking and obscission in various degree can appear in coating, and defective is serious more, ftracture and the phenomenon that comes off obvious more; Pass through again coating morphology around the impression is contrasted with passing through the reference diagram spectrometry, get final product the qualitative relatively bond quality of coating.
As shown in Figure 3, be embodiment of the invention process flow diagram, this embodiment provides a kind of metallic film coating bond quality detection method, specifically comprises,
Step S301 carries out the clean processing of sample to be tested;
Particularly, sample surfaces is cleaned out with alcohol, can not there be dust, greasy dirt in the surface.
Step S302 carries out support fixation with sample to be tested;
Particularly, sample steadily is placed on the test board, guarantees the test surfaces level, sample need obtain support fixation reliably, guarantees that the test zone back side can not be unsettled, and sample can not deform, squint in the test process.
Step S303 uses Vickers to treat specimen and carries out the impression loading;
Particularly, select different load according to thickness of coating, the load of setting should reach the requirement depth of cup can penetrate coating and depth of cup less than thickness of sample 1/10, and the load time is set to 10～15s, and vibration or displacement can not be arranged in the loading procedure;
Carry out to extrude positive rectangular pyramid impression when impression loads treating specimen;
Preferably, on this specimen, load 5 impressions at least, the spacing of each impression is greater than 5 impression catercorner lengths, and impression is greater than five impression catercorner lengths apart from the distance of sample edge.
Step S304, with the coating morphology of observed impression point with compare evaluation coating bond quality rank with reference to collection of illustrative plates.
Particularly, use the observation by light microscope impression, with the coating morphology of observed impression point with compare with reference to collection of illustrative plates, evaluate coating bond quality rank; If the coating bond quality of each impression position is all more than 4 grades, sample is judged to qualified, there is an impression point coating to be 5 grades or 6 grades and then is judged to defectively, as shown in Figure 4, and be that the coating bond quality is graded with reference to collection of illustrative plates.
Adopt above-mentioned Vickers indentation method; General its load range of Vickers in market can be from 10gf～30kgf test at present, and minimum load can control to 10gf, and is little to the restriction of size; Studying and judging of thin material and small sample coating bond quality can be fit to, also the test of large scale sample can be carried out; The second, use the Vickers pressure head that sample is loaded, can use the Vickers test, can realize approximate non-destructive testing, do not influence the product overall appearance; The 3rd, use Vickers to carry out impression test, accurately the size of control loaded load, loading velocity, load retention time, the tested person condition effect is little, the repeating of test; At last, this scheme can directly realize test with little microhardness Vickers of standard, and is simple and efficient to handle, need not use specialized equipment, and economical and practical, versatility is good.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention; But as previously mentioned; Be to be understood that the present invention is not limited to the form that this paper discloses, should do not regard eliminating as, and can be used for various other combinations, modification and environment other embodiment; And can in invention contemplated scope described herein, change through the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection domain of accompanying claims of the present invention.
Claims (7)
1. the detection method of a metallic film coating bond quality is characterized in that, comprise,
Use Vickers to treat specimen and carry out the impression loading;
With the coating morphology of observed impression point with compare evaluation coating bond quality rank with reference to collection of illustrative plates.
2. method according to claim 1 is characterized in that, carries out also comprising before impression loads using Vickers to treat specimen,
After carrying out the clean processing of sample to be tested, sample to be tested is carried out support fixation.
3. method according to claim 1 and 2 is characterized in that, carrying out impression when loading, selects different load according to thickness of coating, and the load of setting should reach depth of cup can penetrate coating and depth of cup less than 1/10 of sample gross thickness.
4. method according to claim 3 is characterized in that, said impression is positive rectangular pyramid impression.
5. method according to claim 3; It is characterized in that; On this specimen, load 5 impressions at least, the spacing of each impression is greater than the catercorner length of 5 impressions, and each impression is greater than the catercorner length of 5 impressions apart from the distance of sample edge.
6. method according to claim 1 and 2 is characterized in that, uses the observation by light microscope impression, with the coating morphology of observed impression point and compare with reference to collection of illustrative plates.
7. method according to claim 6 is characterized in that, if the coating bond quality of each impression position is all more than 4 grades, sample is judged to qualified; Otherwise, be judged to be defective.
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| CN201110378711.9A CN102507355B (en) | 2011-11-24 | 2011-11-24 | A kind of detection method of plating binding quality of metallic film |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900920A (en) * | 2014-04-03 | 2014-07-02 | 国家电网公司 | Cylindrical workpiece Brinell hardness number acquiring method |
| CN104142280A (en) * | 2013-10-16 | 2014-11-12 | 河南富耐克超硬材料股份有限公司 | Method for detecting hard coating quality |
| CN104165815A (en) * | 2014-08-13 | 2014-11-26 | 武汉钢铁(集团)公司 | Method for discriminating punching performance of silicon steel sheet by measuring microhardness |
| CN105136593A (en) * | 2015-08-20 | 2015-12-09 | 江苏大学 | Nondestructive test method for microhardness of metal surface layer subjected to laser shock processing |
| CN105403582A (en) * | 2015-12-22 | 2016-03-16 | 中国科学院金属研究所 | Damage evaluation method of service tissue of gas turbine blade |
| CN107091786A (en) * | 2017-06-13 | 2017-08-25 | 东旭科技集团有限公司 | A kind of method for the micro-vickers hardness for measuring glass substrate |
| CN107314938A (en) * | 2017-07-03 | 2017-11-03 | 上海交通大学 | The implementation method of nugget region material plastic inverting identification |
| CN110328559A (en) * | 2019-07-26 | 2019-10-15 | 上海安视眼镜有限公司 | A kind of lossless removal equipment of metal surface coating |
| CN111536909A (en) * | 2020-04-20 | 2020-08-14 | 中物院成都科学技术发展中心 | Method for detecting quality of film coating and quality of ultrasonic fastener |
| CN112630048A (en) * | 2020-11-20 | 2021-04-09 | 长江存储科技有限责任公司 | Strength measuring method and sample |
| CN113008638A (en) * | 2021-02-23 | 2021-06-22 | 潮州三环（集团）股份有限公司 | Method for detecting interlayer bonding strength of capacitor and application thereof |
| CN114563292A (en) * | 2022-03-28 | 2022-05-31 | 洛阳Lyc轴承有限公司 | Test method for accurately measuring hardness of micron-sized coating layer |
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| CN107421826B (en) * | 2017-07-14 | 2019-11-05 | 东莞市同欣表面处理科技有限公司 | A method of the copper plate hardness shelf-life is tested using rectangular Hull cell |
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Cited By (15)
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| CN104142280A (en) * | 2013-10-16 | 2014-11-12 | 河南富耐克超硬材料股份有限公司 | Method for detecting hard coating quality |
| CN104142280B (en) * | 2013-10-16 | 2016-08-10 | 富耐克超硬材料股份有限公司 | A kind of method detecting hard coat quality |
| CN103900920A (en) * | 2014-04-03 | 2014-07-02 | 国家电网公司 | Cylindrical workpiece Brinell hardness number acquiring method |
| CN104165815B (en) * | 2014-08-13 | 2016-05-18 | 武汉钢铁(集团)公司 | A kind of method of differentiating silicon steel punched chip performance by measuring microhardness |
| CN104165815A (en) * | 2014-08-13 | 2014-11-26 | 武汉钢铁(集团)公司 | Method for discriminating punching performance of silicon steel sheet by measuring microhardness |
| CN105136593A (en) * | 2015-08-20 | 2015-12-09 | 江苏大学 | Nondestructive test method for microhardness of metal surface layer subjected to laser shock processing |
| CN105403582A (en) * | 2015-12-22 | 2016-03-16 | 中国科学院金属研究所 | Damage evaluation method of service tissue of gas turbine blade |
| CN105403582B (en) * | 2015-12-22 | 2019-05-07 | 中国科学院金属研究所 | A kind of combustion engine blade military service tissue damage evaluation method |
| CN107091786A (en) * | 2017-06-13 | 2017-08-25 | 东旭科技集团有限公司 | A kind of method for the micro-vickers hardness for measuring glass substrate |
| CN107314938A (en) * | 2017-07-03 | 2017-11-03 | 上海交通大学 | The implementation method of nugget region material plastic inverting identification |
| CN110328559A (en) * | 2019-07-26 | 2019-10-15 | 上海安视眼镜有限公司 | A kind of lossless removal equipment of metal surface coating |
| CN111536909A (en) * | 2020-04-20 | 2020-08-14 | 中物院成都科学技术发展中心 | Method for detecting quality of film coating and quality of ultrasonic fastener |
| CN112630048A (en) * | 2020-11-20 | 2021-04-09 | 长江存储科技有限责任公司 | Strength measuring method and sample |
| CN113008638A (en) * | 2021-02-23 | 2021-06-22 | 潮州三环（集团）股份有限公司 | Method for detecting interlayer bonding strength of capacitor and application thereof |
| CN114563292A (en) * | 2022-03-28 | 2022-05-31 | 洛阳Lyc轴承有限公司 | Test method for accurately measuring hardness of micron-sized coating layer |
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