CN105220152A - A kind of etching reagent and application thereof showing chromium ceramic composite plating layer interlayer structure - Google Patents
A kind of etching reagent and application thereof showing chromium ceramic composite plating layer interlayer structure Download PDFInfo
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- CN105220152A CN105220152A CN201510605366.6A CN201510605366A CN105220152A CN 105220152 A CN105220152 A CN 105220152A CN 201510605366 A CN201510605366 A CN 201510605366A CN 105220152 A CN105220152 A CN 105220152A
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- plating layer
- ceramic composite
- composite plating
- etching reagent
- chromium ceramic
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- 239000010410 layer Substances 0.000 title claims abstract description 62
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000000919 ceramic Substances 0.000 title claims abstract description 58
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 58
- 239000011651 chromium Substances 0.000 title claims abstract description 58
- 239000002131 composite material Substances 0.000 title claims abstract description 58
- 238000007747 plating Methods 0.000 title claims abstract description 58
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 54
- 238000005530 etching Methods 0.000 title claims abstract description 54
- 239000011229 interlayer Substances 0.000 title claims abstract description 32
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 230000007797 corrosion Effects 0.000 claims abstract description 15
- 238000005498 polishing Methods 0.000 claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 7
- 244000137852 Petrea volubilis Species 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 11
- 230000004069 differentiation Effects 0.000 abstract description 4
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
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- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Sampling And Sample Adjustment (AREA)
- ing And Chemical Polishing (AREA)
- Chemically Coating (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention provides a kind of etching reagent and the application thereof that show chromium ceramic composite plating layer interlayer structure, this etching reagent comprises hydrochloric acid and water, and the concentration of hydrochloric acid is 10%-18% (massfraction); Etching reagent concentration is that the hydrochloric acid of 20%-37% (massfraction) and water are configured according to volume ratio 1:1 and form.This etching reagent carries out display to chromium ceramic composite plating layer interlayer structure and comprises the steps: to provide chromium ceramic composite plating layer sample, successively mechanical mill and mechanical polishing are carried out to chromium ceramic composite plating layer sample, at ambient temperature chromium ceramic composite plating layer sample is immersed in etching reagent, under corrosion terminates rear metaloscope, coating interlayer structure clearly can be demonstrated.Etching reagent of the present invention can corrode chromium ceramic composite plating layer sample at ambient temperature, and coating interlayer structure is clear manifests, and can not bring error because the display of coating interlayer structure is fuzzy to the differentiation of chromium ceramic composite plating layer; In addition, etching reagent is simple and convenient in display application, and spended time is few, fast effectively.
Description
Technical field
The present invention is specifically related to a kind of etching reagent showing chromium ceramic composite plating layer interlayer structure, and this etching reagent is in the application shown chromium ceramic composite plating layer interlayer structure.
Background technology
Chromium ceramic composite plating layer has excellent physical property, and it occurred and is widely used in heavy duty in nearly 20 years, but this technology carries out tight blockade to domestic abroad.Current domestic technique personnel can carry out a large amount of correlation tests under the condition of reference need to pass judgment on and how to pass judgment on to confirm which index of chromium ceramic composite plating layer without any, result shows: coating interlayer structure all plays important effect in the hardness of chromium ceramic composite plating layer, wear resisting property and tension cylinder etc., therefore, if the clear display of coating interlayer structure and can layer thickness be accurately measured, will there be important engineering significance aspect to improving technique, improve the quality of products etc.
Usually for this kind of material, its interlayer structure cannot show by nital, then adopts chloroazotic acid to carry out etch.Due to the characteristic of chloroazotic acid self, need after preparation to use at the appointed time, and along with the effectiveness of the prolongation etching reagent of time reduces gradually, this just makes very easily to occur excessive corrosion or deficient etch state in actual mechanical process, will bring error to differentiation.Also have in addition and even more important be a bit, chromium ceramic composite plating layer sample in chloroazotic acid corrosion process very easily by matrix corrosion, making corrosive fluid become muddiness fast causes coating surface dirty, and then impels coating interlayer structure not easily to manifest, and affects the differentiation of chromium ceramic composite plating layer interlayer structure.
Therefore, a kind of etching reagent and the display packing that effectively show chromium ceramic composite plating layer interlayer structure is fast badly in need of at present.
Summary of the invention
The object of the present invention is to provide a kind of etching reagent showing chromium ceramic composite plating layer interlayer structure, it has the advantages such as with low cost, preparation method is simple.
Another object of the present invention is to provide a kind of method using this etching reagent to show chromium ceramic composite plating layer interlayer structure.
The technical solution adopted for the present invention to solve the technical problems is:
Show an etching reagent for chromium ceramic composite plating layer interlayer structure, it comprises hydrochloric acid and water, and the concentration of hydrochloric acid in etching reagent is 10%-18% (massfraction); Described etching reagent concentration is that the hydrochloric acid of 20%-37% (massfraction) and water form according to volume ratio 1:1 configuration.
Further, the concentration of hydrochloric acid in described etching reagent is 15%-18% (massfraction).
Show an application for the etching reagent of chromium ceramic composite plating layer interlayer structure, described etching reagent comprises the steps: the method that chromium ceramic composite plating layer interlayer structure shows
(1) preparation of chromium ceramic composite plating layer sample: provide chromium ceramic composite plating layer material to be made sample, successively mechanical mill and mechanical polishing are carried out to chromium ceramic composite plating layer sample;
(2) preparation of etching reagent: be that hydrochloric acid and the water of 20%-37% (massfraction) is configured according to volume ratio 1:1 by concentration, stir, obtain described etching reagent;
(3) corrosion sample: immersed by chromium ceramic composite plating layer sample in the etching reagent of step (2) at ambient temperature, the time that chromium ceramic composite plating layer sample immerses in etching reagent is 30 ~ 60s; After the obfuscation of chromium ceramic composite plating layer specimen surface burnt hair, first then use washes of absolute alcohol with water cleaning, air-dry rear for subsequent use;
(4) metallographicobservation and IMAQ: observe with metaloscope immediately after corrosion sample terminates, and choose visual field and take pictures, gather metallograph.
Further, described mechanical mill is the process of thick mechanical mill to thin mechanical mill, carries out mechanical mill successively with 280 orders, 600 orders, 1000 orders and 1500 object sand paper, and the time that often kind of sand paper carries out grinding is 5min.
Further, the rotating speed of the equipment of described mechanical polishing is 800-1200r/min, and the time of mechanical polishing is 120-180s.
Further, described room temperature condition is 20-28 DEG C.
The present invention has following beneficial effect:
(1) etching reagent of the present invention not only prepare that required starting material are considerably less, starting material are simple and easy to get, with low cost, and proportioning design is simple, preparation process is convenient and swift.
(2) etching reagent of the present invention carries out custom-designed for the special construction of chromium ceramic composite plating layer, this etching reagent can corrode chromium ceramic composite plating layer sample at ambient temperature, and coating interlayer structure can manifest clearly, error would not be brought because the display of coating interlayer structure is fuzzy to the differentiation of chromium ceramic composite plating layer like this; In addition, etching reagent is simple and convenient in display application, and spended time is few, fast effectively, has higher practical value.
(3) carry out mechanical mill and mechanical polishing to chromium ceramic composite plating layer sample in display packing of the present invention, the integrity can guaranteeing coating and the chromium ceramic composite plating layer sample preparing surface-brightening, guarantee follow-up corrosive effect.
Accompanying drawing explanation
Fig. 1 is the metallographic structure photo obtained after the corrosion of chromium ceramic composite plating layer in embodiment 1;
Fig. 2 is the metallographic structure photo obtained after the corrosion of chromium ceramic composite plating layer in embodiment 2;
Fig. 3 is the metallographic structure photo obtained after the corrosion of chromium ceramic composite plating layer in embodiment 3;
Fig. 4 is the metallographic structure photo obtained after utilizing chloroazotic acid to corrode chromium ceramic composite plating layer.
Embodiment
A kind of etching reagent showing chromium ceramic composite plating layer interlayer structure, it comprises hydrochloric acid and water that concentration is 20%-37% (massfraction), be configured according to volume ratio 1:1, final hcl corrosion liquid concentration is between 10%-18% (massfraction).
In addition, utilize the method that above-mentioned etching reagent shows chromium ceramic composite plating layer interlayer structure, concrete steps are as follows: provide chromium ceramic composite plating layer metallographic specimen, then respectively mechanical mill and mechanical polishing are carried out to chromium ceramic composite plating layer metallographic specimen, then sample is immersed in above-mentioned etching reagent, finally just obtain coating interlayer structure clearly; Wherein, mechanical mill is the process of thick mechanical mill to thin mechanical mill, carries out mechanical mill successively with 280 orders, 600 orders, 1000 orders and 1500 object sand paper, and each type sand paper metallographic milling time is about 5min; The rotating speed of mechanical polishing device is 800-1200r/min, and the mechanical polishing time is 120-180s; The time that chromium ceramic composite plating layer metallographic specimen immerses in etching reagent is 30-60s.
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1:
A kind of etching reagent showing chromium ceramic composite plating layer layer thickness, comprise hydrochloric acid and water that concentration is 37% (massfraction), be configured according to volume ratio 1:1, the ultimate density of the hydrochloric acid in etching reagent is 18% (massfraction), stir, at room temperature corrosion sample.Chromium ceramic composite plating layer metallographic specimen after mechanical mill and polishing is immersed 30s in etching reagent, first then washes of absolute alcohol is used again with water cleaning after the obfuscation of specimen surface burnt hair, air-dry rear metaloscope is observed, obtain metallographic structure photo as shown in Figure 1, interlayer structure is clear, is easy to measure.
Embodiment 2:
A kind of etching reagent showing chromium ceramic composite plating layer layer thickness, comprise hydrochloric acid and water that concentration is 20% (massfraction), be configured according to volume ratio 1:1, the ultimate density of the hydrochloric acid in etching reagent is 10% (massfraction), stir, at room temperature corrosion sample.Chromium ceramic composite plating layer metallographic specimen after mechanical mill and polishing is immersed 60s in etching reagent, first then washes of absolute alcohol is used again with water cleaning after the obfuscation of specimen surface burnt hair, air-dry rear metaloscope is observed, obtain metallographic structure photo as shown in Figure 2, interlayer structure is clear, is easy to measure.
Embodiment 3:
A kind of etching reagent showing chromium ceramic composite plating layer layer thickness, comprise hydrochloric acid and water that concentration is 30% (massfraction), be configured according to volume ratio 1:1, the ultimate density of the hydrochloric acid in etching reagent is 15% (massfraction), stir, at room temperature corrosion sample.Chromium ceramic composite plating layer metallographic specimen after mechanical mill and polishing is immersed 40s in etching reagent, first then washes of absolute alcohol is used again with water cleaning after the obfuscation of specimen surface burnt hair, air-dry rear metaloscope is observed, obtain metallographic structure photo as shown in Figure 3, interlayer structure is clear, is easy to measure.
The foregoing is only preference embodiment of the present invention, do not form limiting the scope of the present invention.Any any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (6)
1. show an etching reagent for chromium ceramic composite plating layer interlayer structure, it is characterized in that, described etching reagent comprises hydrochloric acid and water, and the concentration of hydrochloric acid in etching reagent is 10%-18% (massfraction); Described etching reagent concentration is that the hydrochloric acid of 20%-37% (massfraction) and water form according to volume ratio 1:1 configuration.
2. a kind of etching reagent showing chromium ceramic composite plating layer interlayer structure as claimed in claim 1, is characterized in that, the concentration of hydrochloric acid in described etching reagent is 15%-18% (massfraction).
3. a kind of application showing the etching reagent of chromium ceramic composite plating layer interlayer structure as claimed in claim 1 or 2, it is characterized in that, described etching reagent comprises the steps: the method that chromium ceramic composite plating layer interlayer structure shows
(1) preparation of chromium ceramic composite plating layer sample: provide chromium ceramic composite plating layer material to be made sample, successively mechanical mill and mechanical polishing are carried out to chromium ceramic composite plating layer sample;
(2) preparation of etching reagent: be that hydrochloric acid and the water of 20%-37% (massfraction) is configured according to volume ratio 1:1 by concentration, stir, obtain described etching reagent;
(3) corrosion sample: immersed by chromium ceramic composite plating layer sample in the etching reagent of step (2) at ambient temperature, the time that chromium ceramic composite plating layer sample immerses in etching reagent is 30 ~ 60s; After the obfuscation of chromium ceramic composite plating layer specimen surface burnt hair, first then use washes of absolute alcohol with water cleaning, air-dry rear for subsequent use;
(4) metallographicobservation and IMAQ: observe with metaloscope immediately after corrosion sample terminates, and choose visual field and take pictures, gather metallograph.
4. apply as claimed in claim 3, it is characterized in that, described mechanical mill is the process of thick mechanical mill to thin mechanical mill, carries out mechanical mill successively with 280 orders, 600 orders, 1000 orders and 1500 object sand paper, and the time that often kind of sand paper carries out grinding is 5min.
5. apply as claimed in claim 3, it is characterized in that, the rotating speed of the equipment of described mechanical polishing is 800-1200r/min, and the time of mechanical polishing is 120-180s.
6. apply as claimed in claim 3, it is characterized in that, described room temperature condition is 20-28 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605366.6A CN105220152B (en) | 2015-09-21 | 2015-09-21 | A kind of corrosive agent for showing chromium ceramic composite plating layer interlayer structure and its application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510605366.6A CN105220152B (en) | 2015-09-21 | 2015-09-21 | A kind of corrosive agent for showing chromium ceramic composite plating layer interlayer structure and its application |
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| Publication Number | Publication Date |
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| CN105220152A true CN105220152A (en) | 2016-01-06 |
| CN105220152B CN105220152B (en) | 2018-01-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801743A (en) * | 2017-04-26 | 2018-11-13 | 贵州天义电器有限责任公司 | Cu/SnPb composite deposite detection methods |
| CN109916905A (en) * | 2019-04-26 | 2019-06-21 | 紫光宏茂微电子(上海)有限公司 | A kind of IMC layers of metallographic etching agent of tin nickel solder and its method for displaying metallographic structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517586A (en) * | 2011-12-26 | 2012-06-27 | 上海锅炉厂有限公司 | Corrosive agent for displaying 9% Cr steel original austenite grain boundary and application thereof |
| CN102721591A (en) * | 2012-07-07 | 2012-10-10 | 西部金属材料股份有限公司 | Method for observing metallographic structure of Hastelloy/steel overlaying welding interface |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517586A (en) * | 2011-12-26 | 2012-06-27 | 上海锅炉厂有限公司 | Corrosive agent for displaying 9% Cr steel original austenite grain boundary and application thereof |
| CN102721591A (en) * | 2012-07-07 | 2012-10-10 | 西部金属材料股份有限公司 | Method for observing metallographic structure of Hastelloy/steel overlaying welding interface |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801743A (en) * | 2017-04-26 | 2018-11-13 | 贵州天义电器有限责任公司 | Cu/SnPb composite deposite detection methods |
| CN109916905A (en) * | 2019-04-26 | 2019-06-21 | 紫光宏茂微电子(上海)有限公司 | A kind of IMC layers of metallographic etching agent of tin nickel solder and its method for displaying metallographic structure |
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| CN105220152B (en) | 2018-01-05 |
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