CN103196379A - Measurement method of thickness of aluminium and aluminium alloy sheet material coating layer - Google Patents
Measurement method of thickness of aluminium and aluminium alloy sheet material coating layer Download PDFInfo
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- CN103196379A CN103196379A CN2013100758715A CN201310075871A CN103196379A CN 103196379 A CN103196379 A CN 103196379A CN 2013100758715 A CN2013100758715 A CN 2013100758715A CN 201310075871 A CN201310075871 A CN 201310075871A CN 103196379 A CN103196379 A CN 103196379A
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Abstract
The invention discloses a measurement method of the thickness of an aluminium and aluminium alloy sheet material coating layer. The measurement method comprises the steps of inlaying, grinding and polishing, etching and measuring. Inlaying is that samples to be measured and isolating sheets are arrayed into a sample package at intervals, the isolating sheets are arranged at two ends of the sample package, metal supports are added on the outer sides of the two ends of the sample package, and the sample package is fixed with the metal supports through fastening pieces. According to the measurement method, a plurality of samples can be measured at one time, the measuring precision and the efficiency of the plurality of samples can be improved, and the cost of manpower and time is reduced.
Description
Technical field
The present invention relates to a kind of material thickness measuring method, more particularly, relate to the measurement of a kind of aluminium and aluminum alloy thin sheet material coating thickness.
Background technology
In that being detected, measure coating thicknesses such as the surface metal plating layer of aluminium and aluminum alloy thin sheet material, oxide cover layer, usually measure according to the specified method of national standard " metal and oxide cover layer thickness measure microscopic method ", test samples is being inlayed, the transversal section is being carried out can measuring after suitable grinding, polishing and the etch thickness of transversal section clad.In aforementioned national standard, for inlaying step, in order to prevent clad transversal section edge chamfer, should support tectal outside surface, should not stay the gap between overlayer and the stilt, adopt the material close with clad hardness as support usually.In order to make transversal section and clad keep vertical, have relatively high expectations to inlaying with grinding operation, verticality is bigger to the influence of measurement result, " a kind of measuring method of cover thickness as thin as a wafer " of Chinese patent notification number CN102564326A for this reason, provided a kind of method that can avoid perpendicularity deviation to cause measuring error, but no matter be that the method that the scheme that provides of national standard or this patent documentation provide is measured and will be expended the plenty of time a large amount of aluminium and aluminum alloy flake materials samples, efficient is lower.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, task of the present invention has been to provide the measuring method of a kind of aluminium and aluminum alloy thin sheet material coating thickness, and purpose is to improve measuring accuracy and the efficient of a plurality of samples, reduces manpower and time cost.
Technical scheme of the present invention is such, the measuring method of a kind of aluminium and aluminum alloy thin sheet material coating thickness, comprise inlay, grinding and polishing, etch and measurement, it is characterized in that: described inlaying is that sample to be measured is spaced into the sample bag with the isolation thin slice, described sample bag two ends are for isolating thin slice, add metallic support in the outside, sample bag two ends, sample bag and metallic support are fixed by securing member.
Preferably, described isolation thin slice is the Polyvinylchloride thin plate.
Preferably, described grinding and polishing uses brilliant polish to be chrome green or alundum (Al suspending liquid.
In a specific embodiment of the present invention, the etching solution that described etch step is used is by distilled water, 95%～97%H
2SO
4With 38%～40%HF by volume 37:2:1 make etch time 80s～100s.
In another specific embodiment of the present invention, the etching solution that described etch step is used by distilled water and 38%～40%HF by volume 2:1 make etch time 10s～20s.
But a plurality of samples of measuring method one-shot measurement provided by the present invention, be conducive to control the vertical of sample rolling direction and transversal section, inlay the time when having reduced a large amount of sample measurement, improved measurement efficient, and adding a standard sample in the sample bag measures as a comparison, the measuring error that can effectively avoid sample rolling direction and transversal section perpendicularity deviation to bring, thus measuring accuracy improved.
Description of drawings
Fig. 1 inlays step sample bag synoptic diagram for the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment.
Aluminium and aluminum alloy flake material sample size cutting approximately are 25 * 30mm.Each sample 2 to be detected and being stacked that polyvinyl chloride panel 1 replaces, insert two metallic support 3 with rearmost end foremost at the sample bag, and with nut or similar fasteners 4 sample bag and metallic support 3 are fixed together, the minimum thickness of every metallic support 3 is 5mm, sample hired car after fixing is milled the transversal section, guarantee that the transversal section is vertical with rolling direction.
Earlier with No. 400 sand paper corase grind, remove the turnning and milling lines for the transversal section behind the turnning and milling; Use No. 800 fine sandpapers and No. 1000 fine sandpaper fine grindings then instead, Ginding process is in the straight line grinding of sand paper upper edge and keeps firmly uniform balance, smooth in order to keep the surface to grind, adopt and to intersect the mill method in length and breadth, namely earlier along a direction mill, make the surface evenly, sample is revolved to turn 90 degrees then and continue mill, the specimen surface that grinds is should be evenly smooth, have a close grain, do not have male and female face.
Sample after the grinding wraps on the polishing disk that tweed is housed and slightly throws, and chrome green (or alundum (Al) suspending liquid that general working concentration is bigger and the thick throwing of conduct agent need be shaken during use evenly.Throw the polishing scratch that stays when grinding sample and disappear, the polished surface smooth does not have till the stain.Rinse well slightly throwing good sample bag water, carrying out essence at the polishing disk that thin woollen cloth (or filament pile fabric) is housed then throws, the chrome green that working concentration is rarer (or alundum (Al) suspending liquid is thrown agent as essence, carefully throws in conjunction with water-detergent solution.Throw till the complete obiteration of thick rubbing down trace, polished surface reaches minute surface.
Polishing back sample bag adopts corrosive liquid to the corrosion of sample bag transversal section, and corrosive liquid is by 370ml distilled water, 20ml95%～97%H
2SO
4And 10ml38%～40%HF mixes composition, and the transversal section etching time is 80s～100s according to the concrete material of sample, and excessive corrosion does not appear in the control corrosion process.Concrete corrosion operation also can be mixed with 100ml38%～40%HF by 200ml distilled water with corrosive liquid to be formed, and this moment, the transversal section etching time was 10s～20s according to the concrete material of sample, need avoid occurring excessive corrosion equally.
The sample bag that makes at last utilizes metaloscope to measure under the situation of 100 times of amplifications, and the parallel lines distance measurement method is adopted in the measurement of coating thickness.
Claims (5)
1. the measuring method of an aluminium and aluminum alloy thin sheet material coating thickness, comprise inlay, grinding and polishing, etch and measurement, it is characterized in that: described inlaying is that sample to be measured is spaced into the sample bag with the isolation thin slice, described sample bag two ends are for isolating thin slice, add metallic support in the outside, sample bag two ends, sample bag and metallic support are fixed by securing member.
2. the measuring method of aluminium according to claim 1 and aluminum alloy thin sheet material coating thickness, it is characterized in that: described isolation thin slice is the Polyvinylchloride thin plate.
3. the measuring method of aluminium according to claim 1 and aluminum alloy thin sheet material coating thickness, it is characterized in that: described grinding and polishing uses brilliant polish to be chrome green or alundum (Al suspending liquid.
4. the measuring method of aluminium according to claim 1 and aluminum alloy thin sheet material coating thickness is characterized in that: the etching solution that described etch step is used is by distilled water, 95%～97%H
2SO
4With 38%～40%HF by volume 37:2:1 make etch time 80s～100s.
5. the measuring method of aluminium according to claim 1 and aluminum alloy thin sheet material coating thickness is characterized in that: the etching solution that described etch step is used by distilled water and 38%～40%HF by volume 2:1 make etch time 10s～20s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100758715A CN103196379A (en) | 2013-03-11 | 2013-03-11 | Measurement method of thickness of aluminium and aluminium alloy sheet material coating layer |
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| CN2013100758715A CN103196379A (en) | 2013-03-11 | 2013-03-11 | Measurement method of thickness of aluminium and aluminium alloy sheet material coating layer |
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| CN103196379A true CN103196379A (en) | 2013-07-10 |
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| CN2013100758715A Pending CN103196379A (en) | 2013-03-11 | 2013-03-11 | Measurement method of thickness of aluminium and aluminium alloy sheet material coating layer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684242A (en) * | 2013-12-02 | 2015-06-03 | 深圳市金洲精工科技股份有限公司 | Metallographic detection component of flexible circuit board and manufacturing method of metallographic detection component |
| CN107401980A (en) * | 2016-05-18 | 2017-11-28 | 鞍钢股份有限公司 | Method for measuring thickness of hot-dip coating micro-area |
| CN111766127A (en) * | 2020-07-29 | 2020-10-13 | 郑州飞机装备有限责任公司 | Membrane thickness detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010149211A (en) * | 2008-12-24 | 2010-07-08 | Fujifilm Corp | Surface polishing method for brittle thin film material |
| CN102564326A (en) * | 2010-12-28 | 2012-07-11 | 中国航空工业标准件制造有限责任公司 | Measuring method for thickness of extremely thin covering layer |
| CN102607486A (en) * | 2012-04-10 | 2012-07-25 | 苏州唐峰金属制品有限公司 | Fixing jig |
-
2013
- 2013-03-11 CN CN2013100758715A patent/CN103196379A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010149211A (en) * | 2008-12-24 | 2010-07-08 | Fujifilm Corp | Surface polishing method for brittle thin film material |
| CN102564326A (en) * | 2010-12-28 | 2012-07-11 | 中国航空工业标准件制造有限责任公司 | Measuring method for thickness of extremely thin covering layer |
| CN102607486A (en) * | 2012-04-10 | 2012-07-25 | 苏州唐峰金属制品有限公司 | Fixing jig |
Non-Patent Citations (1)
| Title |
|---|
| 武汉材料保护研究所等: "《GB/T 6462-2005金属和氧化物覆盖层厚度测量显微镜法》", 23 June 2005, article "关于横断面制备和测量的指南", pages: A - C * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684242A (en) * | 2013-12-02 | 2015-06-03 | 深圳市金洲精工科技股份有限公司 | Metallographic detection component of flexible circuit board and manufacturing method of metallographic detection component |
| CN104684242B (en) * | 2013-12-02 | 2018-01-05 | 深圳市金洲精工科技股份有限公司 | Metallographic detection means of flexible electric circuit board and preparation method thereof |
| CN107401980A (en) * | 2016-05-18 | 2017-11-28 | 鞍钢股份有限公司 | Method for measuring thickness of hot-dip coating micro-area |
| CN111766127A (en) * | 2020-07-29 | 2020-10-13 | 郑州飞机装备有限责任公司 | Membrane thickness detection method |
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Application publication date: 20130710 |