CN109580614A - Metallographic etching agent, the method for displaying metallographic structure for crimping core wire - Google Patents
Metallographic etching agent, the method for displaying metallographic structure for crimping core wire Download PDFInfo
- Publication number
- CN109580614A CN109580614A CN201710908579.5A CN201710908579A CN109580614A CN 109580614 A CN109580614 A CN 109580614A CN 201710908579 A CN201710908579 A CN 201710908579A CN 109580614 A CN109580614 A CN 109580614A
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- China
- Prior art keywords
- metallographic
- core wire
- copper
- specimen
- metallographic specimen
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- Pending
Links
- 238000005530 etching Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000002788 crimping Methods 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052802 copper Inorganic materials 0.000 claims abstract description 30
- 239000010949 copper Substances 0.000 claims abstract description 30
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 28
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 238000005260 corrosion Methods 0.000 claims abstract description 19
- 230000007797 corrosion Effects 0.000 claims abstract description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims abstract description 13
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 238000005660 chlorination reaction Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 4
- 239000003518 caustics Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000005088 metallography Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000399 optical microscopy Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000000866 electrolytic etching Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/32—Polishing; Etching
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/2202—Preparing specimens therefor
Abstract
The present invention provides a kind of method for displaying metallographic structure for crimping core wire, the display methods includes: the first step, if providing the metallographic specimen of dry copper wire and copper alloy wire, the metallographic specimen includes several core wire layers of copper and encloses the copper alloy layer for setting and being crimped on outside several core wire layers of copper；Second step is added and protects beautiful resin；Third step carries out mechanical lapping to the metallographic specimen, then mechanically polishes to the metallographic specimen after grinding；4th step provides metallographic etching agent, and the metallographic etching agent is the mixed solution of ferric chloride (FeCl36H2O), hydrochloric acid and alcohol, and the metallographic specimen after polishing is disseminated the metallographic etching agent to carry out metallographic microcorrosion.5th step, metallographic specimen after corrosion is rinsed into drying, by the split conductor layers of copper and copper alloy layer of the metallographic specimen after drying described in micro- sem observation, core wire layers of copper and the boundary of copper alloy layer after crimping can be clearly showed that whereby, and then are facilitated look at and crimped effect between core wire, between core wire and alloy layers of copper.
Description
[technical field]
The present invention relates to a kind of metallographic structures to observe experimental technique, more particularly to one kind is applied to several core wires and is crimped with conjunction
The metallographic etching agent of gold-copper layer metallographic microstructure observation, the method for displaying metallographic structure for crimping core wire.
[background technique]
The material properties such as the internal organizational structure and hardness, intensity, ductility of metal material have direct and close connection
System, metallographic observation are research metal material internal organizational structure effective methods the most direct.Metallographic refers to metal or alloy
The physical state and chemical state of chemical component and various compositions inside metal or alloy.Using metallography microscope display methods
Metallographic microstructure observation can be carried out to different metal or alloy-layer boundary line and thickness.Wherein, to overlay coating metallography microscope group
It knits to be observed and first has to show boundary line between layering using suitable metallographic etching agent, so using chemical etching method
The thickness of coating is measured with optics or electron microscope afterwards.
However, carrying out what layering metallographic microstructure was shown to several core wires after being connect with alloyed copper lamination in the prior art
The effect is relatively poor, and carries out the method and complex steps that metallographic microstructure is shown to crimping core wire.Such as core wire and copper alloy
Electrolytic etching can be influenced by factors such as voltage, electric current, temperature and times, the more difficult control of extent of corrosion.
Therefore, suitable metallographic etching agent how is selected, the core wire layers of copper and copper alloy layer boundary line that crimp core wire how are made
Display effect is good, how to simplify method for displaying metallographic structure just seems very necessary.
[summary of the invention]
A kind of good and etching time accurately controls the purpose of the present invention is to provide corrosive effect metallographic etching agent, pressure
Connect the method for displaying metallographic structure of core wire.
The purpose of the present invention is achieved through the following technical solutions: a kind of method for displaying metallographic structure crimping core wire, should
Display methods includes: the first step, if providing the metallographic specimen of dry copper wire and copper alloy wire, the metallographic specimen includes several cores
Line layers of copper and enclose the copper alloy layer for setting and being crimped on outside several core wire layers of copper；Second step provides a container, metallographic is tried
Sample is fixed in container, is added and is protected beautiful resin；Third step is taken out to have and protects the metallographic specimen that beautiful resin surrounds, to the metallographic
Sample carries out mechanical lapping, then mechanically polishes to the metallographic specimen after grinding；4th step provides metallographic etching agent, described
Metallographic etching agent is the mixed solution of ferric chloride (FeCl36H2O), hydrochloric acid and alcohol, and the metallographic specimen after polishing is disseminated the metallographic
Corrosive agent is to carry out metallographic microcorrosion；Metallographic specimen after corrosion is rinsed drying by the 5th step, will be dried described in micro- sem observation
The split conductor layers of copper and copper alloy layer of metallographic specimen after dry.
Further, the ferric chloride (FeCl36H2O), hydrochloric acid and alcohol according to mass percent be 6%~8%:14%~
The ratio of 16%:76%~80% is formulated.
Further, the metallographic specimen is put into protect beautiful resin after carry out the cold edge of 4h or more and bury.
Further, corrosive liquid wiping metallographic specimen is dipped using cotton swab or be placed in metallographic specimen under the corrosive liquid of flowing
To carry out metallographic microcorrosion.
Further, the cotton swab dips corrosive liquid and is inversely now grinding 3~5 metallographic specimens of direction wiping.
Further, it needs to rinse 10s or more with circulating water after the metallographic specimen corrosion.
Further, it is toasted after the metallographic specimen rinses with baking oven and baking temperature is 50 DEG C, baking time 3min~
5min。
Further, in the 5th step, metallographic structure observation is carried out using high magnification optical microscopy or electron scanning Electronic Speculum.
The purpose of the present invention is achieved through the following technical solutions: a kind of metallographic etching agent, for several after crimping
The corrosion of the metallographic specimen of core copper wire and copper alloy wire, the metallographic specimen include several core wire layers of copper and enclose and set and be crimped on
Copper alloy layer outside several core wire layers of copper, the metallographic etching agent are that the mixing of ferric chloride (FeCl36H2O), hydrochloric acid and alcohol is molten
Liquid.
Further, the ferric chloride (FeCl36H2O), hydrochloric acid and alcohol according to mass percent be 6%~8%:14%~
The ratio of 16%:76%~80% is formulated.
Compared with prior art, the invention has the following beneficial effects: use above-mentioned technical proposal to be greatly improved crimping
Core wire corrosion efficiency and surface metallographic microstructure display effect.
[Detailed description of the invention]
Fig. 1 is that core wire layers of copper and copper alloy layer metallographic structure show picture before corroding；And
Fig. 2 is core wire layers of copper and copper alloy layer phase constitution display picture after corrosion.
[specific embodiment]
In order to enable those skilled in the art to better understand the present invention, below with reference to specific example to technology of the invention
Scheme is described in detail.The display methods the following steps are included:
The first step, if providing the metallographic specimen of dry copper wire and copper alloy wire, as shown in Figure 1, the metallographic specimen includes
Several core wire layers of copper 11 and enclose the copper alloy layer 12 for setting and being crimped on outside several core wire layers of copper 11, it can be seen that be located inside
Core wire layers of copper 11 be almost integral type pattern, can not distinguish line of demarcation between each core wire completely, and core wire layers of copper 11 and copper
Alloy-layer 12 has certain limit, but is not apparent；
Second step provides a container (not shown), and metallographic specimen is fixed in container with a fixing piece, injects liquid
The beautiful resin of the guarantor of state, the metallographic specimen is put into protect beautiful resin after carry out the cold edge of 4h or more and bury, cold edge bury after effect such as Fig. 1
It is shown, protect the outside that beautiful resin layer 13 is disposed around the copper alloy layer 12；
Third step is taken out to have and protects the metallographic specimen that beautiful resin layer 13 surrounds, if container is circle, the overall structure
For circle, this kind of structure carries out mechanical lapping similar to amber shape, to the metallographic specimen after the taking-up, then to the metallographic after grinding
Sample is mechanically polished；
4th step, provides metallographic etching agent, and the metallographic etching agent is that the mixing of ferric chloride (FeCl36H2O), hydrochloric acid and alcohol is molten
Liquid, specifically, it is respectively 6% according to mass percent that the metallographic etching agent, which is the ferric chloride (FeCl36H2O), hydrochloric acid and alcohol,
The ratio of~8%:14%~16%:76%~80% is formulated, and the metallographic specimen after polishing is disseminated to the gold of the proportion
Phase corrosive agent carries out 10s~20s metallographic microcorrosion, and the forms of corrosion can use the following two kinds mode: dip corruption with cotton swab
Metallographic specimen is placed in progress metallographic microcorrosion under the corrosive liquid of flowing by erosion liquid wiping metallographic specimen, if dipping corrosion with cotton swab
If the mode of liquid, then 3~5 metallographic specimens of direction wiping are inversely now being ground, it should be noted that disseminate the metallographic of corrosive agent
The etching time of sample cannot be too long, needs to observe immerged time with manual time-keeping constantly, in order to avoid by the layers of copper excessive corrosion；
5th step, the metallographic specimen after corrosion is rinsed, after specifically needing to rinse the corrosion with circulating water
Metallographic specimen need to use 10s or more, then the metallographic specimen after flushing is dried, and the metallographic specimen after the specific flushing is used
Baking oven baking and baking temperature be 50 DEG C, baking time 3min~5min be it is best, finally use high magnification optical microscopy or
Electron scanning Electronic Speculum carries out metallographic structure observation and observes the core wire layers of copper 11 and copper alloy layer by the metallographic specimen after drying
12, as shown in Fig. 2, can clear, significantly observe that each core wire layers of copper 11, copper alloy layer 12 and core wire layers of copper 11 and guarantor are beautiful
Line of demarcation between resin layer 13 and copper alloy layer 12 can carry out subsequent measurement with this and improve.
So can clearly show that the core wire layers of copper 11 after core wire crimping, copper alloy with technical solution of the present invention
Boundary between layer 12 and the beautiful resin layer 13 of guarantor is conducive to layering observation, and then facilitates look at the crimping journey between each core wire
Degree is crimped between degree or core wire and copper alloy layer, and then is conveniently adjusted the core wire quantity, the size of crimp force with full
Sufficient next step application demand.
Metallographic etching agent in the present embodiment is the mixed solution of ferric chloride (FeCl36H2O), hydrochloric acid and alcohol, specific to match
Are as follows: ferric chloride (FeCl36H2O), hydrochloric acid and alcohol are that 6%~8%:14%~16%:76%~80% is made according to mass percent.
Corrode using metallographic specimen of the metallographic etching agent to core wire and copper alloy layer after crimping, is greatly improved core wire copper
The corrosion efficiency and metallographic microstructure display effect of layer and copper alloy layer.Ferric chloride (FeCl36H2O) hydrochloric acid and alcohol are compared as required
Example uniformly mixes up to the metallographic etching agent, and preparation method is simple.And agents useful for same is conventional reagent, can make this hair
Bright application and popularizations are more convenient.In addition, uniform and stable situation is presented in the speed that metallographic etching agent of the invention corrodes, make corruption
Degree of corrosion can be controlled more efficiently.
The foregoing is merely some embodiments of the invention, the embodiment being not all of, ordinary skill people
Any equivalent variation that member takes technical solution of the present invention by reading description of the invention, is right of the invention
It is required that being covered.
Claims (10)
1. a kind of method for displaying metallographic structure for crimping core wire, which is characterized in that the display methods includes:
The first step, if providing the metallographic specimen of dry copper wire and copper alloy wire, the metallographic specimen include several core wire layers of copper and
Enclose the copper alloy layer for setting and being crimped on outside several core wire layers of copper；
Second step provides a container, metallographic specimen is fixed in container, is added and protects beautiful resin；
Third step is taken out to have and protects the metallographic specimen that beautiful resin surrounds, carries out mechanical lapping to the metallographic specimen, then to grinding
Metallographic specimen afterwards is mechanically polished；
4th step provides metallographic etching agent, and the metallographic etching agent is the mixed solution of ferric chloride (FeCl36H2O), hydrochloric acid and alcohol,
Metallographic specimen after polishing is disseminated into the metallographic etching agent to carry out metallographic microcorrosion；
Metallographic specimen after corrosion is rinsed drying, by the core of the metallographic specimen after drying described in micro- sem observation by the 5th step
Line layers of copper and copper alloy layer.
2. the method for displaying metallographic structure of crimping core wire as described in claim 1, it is characterised in that: the six water tri-chlorination
Iron, hydrochloric acid and alcohol are that 6%~8%:14%~16%:76%~80% ratio is formulated according to mass percent.
3. the method for displaying metallographic structure of crimping core wire as described in claim 1, it is characterised in that: the metallographic specimen is put into
It protects after beautiful resin and carries out the cold edge of 4H or more and bury.
4. the method for displaying metallographic structure of crimping core wire as described in claim 1, it is characterised in that: dip corrosion using cotton swab
Metallographic specimen is placed under the corrosive liquid of flowing to carry out metallographic microcorrosion by liquid wiping metallographic specimen.
5. the method for displaying metallographic structure of crimping core wire as claimed in claim 4, it is characterised in that: the cotton swab dips corrosion
Liquid is inversely now grinding 3~5 metallographic specimens of direction wiping.
6. the method for displaying metallographic structure of crimping core wire as described in claim 1, it is characterised in that: the metallographic specimen corrosion
After need with circulating water rinse 10S or more.
7. the method for displaying metallographic structure of crimping core wire as described in claim 1, it is characterised in that: the metallographic specimen rinses
It is toasted afterwards with baking oven and baking temperature is 50 DEG C, baking time 3MIN~5MIN.
8. the method for displaying metallographic structure of crimping core wire as described in claim 1, it is characterised in that: in the 5th step, use height
Magnification optical microscope or electron scanning Electronic Speculum carry out metallographic structure observation.
9. a kind of metallographic etching agent, for the corrosion of the metallographic specimen to several core copper wire and copper alloy wire after crimping,
Be characterized in that: the metallographic specimen includes several core wire layers of copper and encloses the copper alloy for setting and being crimped on outside several core wire layers of copper
Layer, the metallographic etching agent are the mixed solution of ferric chloride (FeCl36H2O), hydrochloric acid and alcohol.
10. metallographic etching agent as claimed in claim 9, it is characterised in that: the ferric chloride (FeCl36H2O), hydrochloric acid and alcohol according to
Mass percent is that 6%~8%:14%~16%:76%~80% ratio is formulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710908579.5A CN109580614A (en) | 2017-09-29 | 2017-09-29 | Metallographic etching agent, the method for displaying metallographic structure for crimping core wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710908579.5A CN109580614A (en) | 2017-09-29 | 2017-09-29 | Metallographic etching agent, the method for displaying metallographic structure for crimping core wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109580614A true CN109580614A (en) | 2019-04-05 |
Family
ID=65914786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710908579.5A Pending CN109580614A (en) | 2017-09-29 | 2017-09-29 | Metallographic etching agent, the method for displaying metallographic structure for crimping core wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN109580614A (en) |
Cited By (3)
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| CN110846664A (en) * | 2019-11-20 | 2020-02-28 | 哈尔滨哈锅锅炉工程技术有限公司 | Etching agent for austenitic stainless steel metallographic phase and display method |
| CN111665267A (en) * | 2020-06-16 | 2020-09-15 | 沈阳兴华航空电器有限责任公司 | Visual detection method for compression joint quality of pit-pressing type contact |
| CN113640090A (en) * | 2021-08-27 | 2021-11-12 | 北京星航机电装备有限公司 | GH4141 high-temperature alloy metallographic structure corrosive agent and corrosion method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110846664A (en) * | 2019-11-20 | 2020-02-28 | 哈尔滨哈锅锅炉工程技术有限公司 | Etching agent for austenitic stainless steel metallographic phase and display method |
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| CN111665267B (en) * | 2020-06-16 | 2023-06-13 | 沈阳兴华航空电器有限责任公司 | Visual detection method for crimping quality of pit-press type contact |
| CN113640090A (en) * | 2021-08-27 | 2021-11-12 | 北京星航机电装备有限公司 | GH4141 high-temperature alloy metallographic structure corrosive agent and corrosion method |
| CN113640090B (en) * | 2021-08-27 | 2024-04-19 | 北京星航机电装备有限公司 | GH4141 high-temperature alloy metallographic structure corrosive and corrosion method |
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