CN206378451U - A kind of electrochemical corrosion legal system pin mechanism - Google Patents
A kind of electrochemical corrosion legal system pin mechanism Download PDFInfo
- Publication number
- CN206378451U CN206378451U CN201621451283.2U CN201621451283U CN206378451U CN 206378451 U CN206378451 U CN 206378451U CN 201621451283 U CN201621451283 U CN 201621451283U CN 206378451 U CN206378451 U CN 206378451U
- Authority
- CN
- China
- Prior art keywords
- insulating support
- bottom electrode
- tungsten bar
- supporting leg
- conducting strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of electrochemical corrosion legal system pin mechanism, trigger applied to electric branch in experiment, it is related to technical field of electric equipment, its composition includes, described DC power anode is connected by wire with screw, described DC power cathode is connected by wire with bottom electrode, described bottom electrode is arranged on supporting leg, Top electrode is installed on described supporting leg, described tungsten bar passes through Top electrode and bottom electrode center, described clip is clamped to be fixed on insulating support at the top of tungsten bar by conducting strip, mounting screw on described conducting strip, the square cup of glass is installed under described insulating support；The utility model can once produce many pieces of needle points, easy to operate, fixing-stable is easy to use by designing multiple devices Zhi Zhen mechanisms simultaneously, be easy to implement the quick of tungsten bar needle point and produce, save the time.
Description
Technical field
The utility model discloses a kind of electrochemical corrosion legal system pin mechanism, trigger applied to electric branch in experiment, it is related to
And technical field of electric equipment.
Background technology
Preparing the method for needle point has many kinds, for example：Method, means of electron beam deposition, field cause are cut by mechanical forming method, ion beam pin
Evaporation etc..Each method has respective advantage, but there is also limitation simultaneously.Electrochemical erosion method is gone with ion
The form formation metal needle point removed, this methods experiment principle is simple, and device is ready prepared for, and repeats controllable, cheap.
Electrochemical erosion method（Also known as wet method）Preparing the method for STM tungsten filament needle points is：The tungsten filament of 0.3mm diameters is cut
Into the segment of 5cm length or so, anode is used as；Negative electrode is used as with the torpescence metal such as copper, stainless steel.By a part for anode and
Whole cathode portion enters electrolyte（Generally 2mol/L to 3mol/L NaOH or KOH solution）In, plus it is positive
Biasing is electrolysed.Cell reaction can be carried out on the surface of electrolyte and the part of positive contact.With the progress of reaction, anode
The part contacted with liquid level of electrolyte can by electrolytic corrosion, attenuate, the part contacted with liquid level until anode is very thin to deficiency
To lift the cathode material of solution lower end（Tungsten filament）When, this section of tungsten filament can be broken naturally, and so far reaction terminates.At this moment, two
The part that section tungsten filament departs from, will form a monatomic needle point.
Traditional electrochemical corrosion legal system needle point system can only once produce a needle point, less efficient, it is necessary to grasp repeatedly
Make, cause to extend experimental period.
Utility model content
In view of the above-mentioned problems, the technical problems to be solved in the utility model is to provide a kind of electrochemical corrosion legal system pin machine
Structure.
A kind of electrochemical corrosion legal system pin mechanism of the present utility model, it comprising screw, conducting strip, tungsten bar, dc source,
The square cup of wire, pin holes, insulating support, clip, Top electrode, glass, bottom electrode, supporting leg, DC power anode is by leading
Line is connected with screw, and DC power cathode is connected by wire with bottom electrode, and bottom electrode is arranged on supporting leg, pacifies on supporting leg
Electrode is loaded onto, tungsten bar is through Top electrode and bottom electrode center, and clip is clamped and is fixed on insulating support by conducting strip at the top of tungsten bar
On, mounting screw on conducting strip installs the square cup of glass under insulating support.
Preferably, described insulating support has three square cups of glass.
Preferably, a set of Zhi Zhen mechanisms are respectively equipped with three described square cups of glass respectively.
The beneficial effects of the utility model are：It is easy to implement the quick of tungsten bar needle point to produce, easy to operate, fixing-stable,
It is easy to use, save the time.
Brief description of the drawings
For ease of explanation, the utility model is described in detail by following specific implementations and accompanying drawing.
Fig. 1 is structural representation of the present utility model；
In figure：1- screws, 2- conducting strips, 3- tungsten bars, 4- dc sources, 5- wires, 6- pin holes, 7- insulating supports, 8-
Clip, 9- Top electrodes, the square cup of 10- glass, 11- bottom electrodes, 12- supporting legs.
Embodiment
To make the purpose of this utility model, technical scheme and advantage of greater clarity, below by what is shown in accompanying drawing
Specific embodiment describes the utility model.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit this reality
With new scope.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily mixing
Confuse concept of the present utility model.
As shown in figure 1, present embodiment uses following technical scheme：It includes screw 1, conducting strip 2, tungsten bar 3, straight
Power supply 4, wire 5, pin holes 6, insulating support 7, clip 8, Top electrode 9, the square cup 10 of glass, bottom electrode 11, supporting leg 12 are flowed,
The positive pole of dc source 4 is connected by wire 5 with screw 1, and the negative pole of dc source 4 is connected by wire 5 with bottom electrode 11, bottom electrode
11 are arranged on supporting leg 12, and Top electrode 9 is installed on supporting leg 12, and tungsten bar 3 passes through Top electrode 9 and the center of bottom electrode 11, clip 8
Clamp the top of tungsten bar 3 to be fixed on insulating support 7 by conducting strip 2, mounting screw 1 on conducting strip 2,7 times installations of insulating support
The square cup 10 of glass.
Further, described insulating support has three square cups of glass.
Further, a set of Zhi Zhen mechanisms are respectively housed respectively in three described square cups of glass.
The operation principle of present embodiment is：Tungsten bar is clipped on conducting strip with clip, filled in the square cup of glass
NaOH solution, dc source is powered, and part corrosion fracture forms needle point under tungsten bar, easy to operate, easy to use.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (3)
1. the utility model discloses a kind of electrochemical corrosion legal system pin mechanism, trigger applied to electric branch in experiment, it is related to
Technical field of electric equipment, it is characterised in that：It includes screw (1), conducting strip (2), tungsten bar (3), dc source (4), wire
(5), pin holes (6), insulating support (7), clip (8), Top electrode (9), the square cup of glass (10), bottom electrode (11), supporting leg
(12), dc source (4) positive pole is connected by wire (5) with screw (1), and dc source (4) negative pole passes through wire (5) and lower electricity
Pole (11) is connected, and bottom electrode (11) is arranged on supporting leg (12), and Top electrode (9) is installed on supporting leg (12), and tungsten bar (3) is passed through
Top electrode (9) and bottom electrode (11) center, clip (8) are clamped and are fixed on insulating support by conducting strip (2) at the top of tungsten bar (3)
(7) on, mounting screw (1) on conducting strip (2) installs the square cup of glass (10) under insulating support (7).
2. a kind of electrochemical corrosion legal system pin mechanism according to claim 1, it is characterised in that：Described insulating support
(7) three square cups of glass (10) are had.
3. a kind of electrochemical corrosion legal system pin mechanism according to claim 1, it is characterised in that：Three described glass sides
A set of Zhi Zhen mechanisms are respectively housed respectively in shape cup (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621451283.2U CN206378451U (en) | 2016-12-28 | 2016-12-28 | A kind of electrochemical corrosion legal system pin mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621451283.2U CN206378451U (en) | 2016-12-28 | 2016-12-28 | A kind of electrochemical corrosion legal system pin mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206378451U true CN206378451U (en) | 2017-08-04 |
Family
ID=59407635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621451283.2U Expired - Fee Related CN206378451U (en) | 2016-12-28 | 2016-12-28 | A kind of electrochemical corrosion legal system pin mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206378451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254439A (en) * | 2020-02-24 | 2020-06-09 | 哈尔滨理工大学 | Method for preparing tungsten needle tip electrode based on electric field evaporation and implementation device thereof |
| CN111334847A (en) * | 2020-04-01 | 2020-06-26 | 中国科学院物理研究所 | Needle tip preparation control device |
-
2016
- 2016-12-28 CN CN201621451283.2U patent/CN206378451U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254439A (en) * | 2020-02-24 | 2020-06-09 | 哈尔滨理工大学 | Method for preparing tungsten needle tip electrode based on electric field evaporation and implementation device thereof |
| CN111334847A (en) * | 2020-04-01 | 2020-06-26 | 中国科学院物理研究所 | Needle tip preparation control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20171228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |