CN104785871B - A kind of preparation method of probe and preparation facilitiess - Google Patents

A kind of preparation method of probe and preparation facilitiess Download PDF

Info

Publication number
CN104785871B
CN104785871B CN201510186082.8A CN201510186082A CN104785871B CN 104785871 B CN104785871 B CN 104785871B CN 201510186082 A CN201510186082 A CN 201510186082A CN 104785871 B CN104785871 B CN 104785871B
Authority
CN
China
Prior art keywords
tinsel
preparation
probe
cautery
galvano
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.)
Expired - Fee Related
Application number
CN201510186082.8A
Other languages
Chinese (zh)
Other versions
CN104785871A (en
Inventor
张旻
易振东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Graduate School Tsinghua University
Original Assignee
Shenzhen Graduate School Tsinghua University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Graduate School Tsinghua University filed Critical Shenzhen Graduate School Tsinghua University
Priority to CN201510186082.8A priority Critical patent/CN104785871B/en
Publication of CN104785871A publication Critical patent/CN104785871A/en
Application granted granted Critical
Publication of CN104785871B publication Critical patent/CN104785871B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

The invention discloses a kind of preparation method of probe and preparation facilitiess, preparation method includes:1) tinsel is immersed in galvano-cautery solution;Wherein, the galvano-cautery solution is mounted in the container that graphite material is made, or is placed with the galvano-cautery solution around the cylindric graphite electrode wiry, and the graphite electrode is higher by liquid level;Wherein, a diameter of 20~75mm of crystal vessel or cylindric graphite electrode;2) between the tinsel and the container, or applied voltage as follows between the tinsel and the cylindric graphite electrode:First apply first sinusoidal voltage of 30~45V, application time guarantees that the corrosion rate of the part under the tinsel immersed in liquid level is 1/30~1/20mm/s;Then apply second sinusoidal voltage of 15~25V, application time is until corrosion reaction terminates;3) lifting tinsel departs from liquid level, completes the preparation of probe.The pattern of probe obtained in of the invention be cylindric, size in submicron order, and with larger draw ratio.

Description

A kind of preparation method of probe and preparation facilitiess
【Technical field】
The present invention relates to the preparation method of probe and preparation facilitiess, more particularly to a kind of submicron order, big L/D ratio The preparation method of probe and preparation facilitiess.
【Background technology】
Fine probe is widely used in scanning probe imaging, Multi-contact measurement, micro-nano manipulation and electrochemistry micro Process etc. Field, the size and dimension of needle point directly determine the performance and range of application of probe.By taking electrochemistry micro Process as an example, mesh The front probe for using mostly is micro fine cylindrical shape probe, by probe and the relative motion of workpiece, needed for electrochemistry Milling Process goes out Part, therefore the size and shape of probe directly determine the micro-machined machining accuracy of electrochemistry and the minimum process limit.
The at present micro fine cylindrical probe used by electrochemistry micro Process, general prepared by electrochemical etching method.Electrification The detail for learning corrosion process is had nothing in common with each other, but obtained cylindrical probe size is all more than 3 microns at present, it is impossible to be used for In the electrochemistry micro Process of submicron or nanoscale structures.And the probe made by some electrochemical corrosive process, although can Needle point is worked into nanoscale, but probe pattern is cone, and major diameter is smaller, it is impossible to added for electrochemistry micro Process etc. The larger occasion of work depth.
【Content of the invention】
The technical problem to be solved is:Above-mentioned the deficiencies in the prior art are made up, a kind of preparation of probe is proposed Method and preparation facilitiess, the pattern of obtained probe be cylindric, size in submicron order, and with larger draw ratio.
The technical problem of the present invention is solved by following technical scheme:
A kind of preparation method of probe, comprises the following steps:1) tinsel is immersed in galvano-cautery solution;Wherein, described Galvano-cautery solution is mounted in the container that graphite material is made, or is placed with the galvano-cautery solution around described wiry Cylindric graphite electrode, the graphite electrode are higher by liquid level;Wherein, the diameter of the container that the graphite material is made or described A diameter of 20~75mm of cylindric graphite electrode;2) between the tinsel and the container, or in the metal Applied voltage as follows between silk and the cylindric graphite electrode:First apply first sinusoidal ac of 30~45V Pressure, application time guarantee that the corrosion rate of the part under the tinsel immersed in liquid level is 1/30~1/20mm/s;Then apply Second sinusoidal voltage of 15~25V, application time is until corrosion reaction terminates;3) by process after tinsel lifting Depart from liquid level, complete the preparation of probe.
A kind of preparation facilitiess of probe, including electrolyzer, displacement platform, alternating-current voltage source and control circuit;The electrolyzer For the container that the graphite material of a diameter of 20~75mm is made, for loading galvano-cautery solution;The displacement platform is used for fixing Preparing raw material tinsel, and scalable makes the tinsel be dipped in the galvano-cautery solution;The one of the alternating-current voltage source is defeated Go out the end connection tinsel, another outfan connects the container, and control signal receiving terminal connects the control circuit;Described Control circuit is used for controlling the first sinusoidal voltage that the alternating-current voltage source first exports 30~45V, and the persistent period guarantees institute The corrosion rate for stating the part under tinsel immersed in liquid level is 1/30~1/20mm/s;Then the second of 15~25V of output is sinusoidal Alternating voltage, the persistent period is until corrosion reaction terminates.
A kind of preparation facilitiess of probe, including electrolyzer, cylindric graphite electrode, displacement platform, alternating-current voltage source and control Circuit;The electrolyzer is used for loading galvano-cautery solution;The displacement platform is used for fixing preparing raw material tinsel, and scalable The tinsel is made to be dipped in the galvano-cautery solution;A diameter of 20~75mm of the cylindric graphite electrode, is placed on institute State in galvano-cautery solution, and arrange around the tinsel;One outfan of the alternating-current voltage source connects the tinsel, separately One outfan connects the cylindric graphite electrode, and control signal receiving terminal connects the control circuit;The control circuit is used In the first sinusoidal voltage that the control alternating-current voltage source first exports 30~45V, the persistent period guarantees the tinsel leaching The corrosion rate for entering subsurface part is 1/30~1/20mm/s;Then second sinusoidal voltage of 15~25V is exported, is held The continuous time is until corrosion reaction terminates.
The beneficial effect that the present invention is compared with the prior art is:
The present invention probe preparation method and preparation facilitiess, by conductive wire be placed in cylindrical shape graphite electrode in or In the container that the cylindric graphite material of person is made, in immersion electrochemical corrosion solution, using alternating current caustic solution, in corrosion During through two step high-low voltages etch state, and strict control voltage size and etching time, so as to by the conduction Wire erosion is into big L/D ratio, the cylindrical probe of submicron-scale.After tested, the draw ratio of obtained probe is 20~50 (draw ratio of the probe below existing micron order is generally less than 10), size is in 500nm~1 μm.The present invention can rapidly, easily The making of the cylindrical needle of submicron order big L/D ratio is realized, process of preparing is simple, low cost, and it is raw to carry out batch Produce.The size of the cylindrical needle prepared using the present invention is only relevant with electrochemical corrosion applied voltage and time, and processed In journey, equipment precision is unrelated, relative to essences such as the relative displacements for needing strictly to control in some preparation methoies existing between two electrodes Degree, the present invention can be easy to control to prepare the cylindrical probe in high-aspect-ratio micro nano structure electrochemistry micro Process.
【Description of the drawings】
Fig. 1 is the structural representation of the preparation facilitiess of the probe of the specific embodiment of the invention;
Fig. 2 be the specific embodiment of the invention embodiment 1 in obtained probe scanning electron microscope (SEM) photograph;
Fig. 3 be the specific embodiment of the invention embodiment 2 in obtained probe scanning electron microscope (SEM) photograph.
【Specific embodiment】
With reference to specific embodiment and compare accompanying drawing the present invention is described in further details.
As shown in figure 1, a kind of preparation facilitiess for preparing submicron order, big major diameter, cylindrical needle, including:Electrolysis Pond 5, displacement platform 1, adjustable ac source 3 and control circuit (not shown).
Wherein, electrolyzer 5 is used for containing galvano-cautery solution 4.Galvano-cautery solution 4 can be by calcium chloride, sodium chloride, hydrogen-oxygen Change the electrolytic solution of the electrolytes such as sodium, potassium hydroxide configuration.Electrolyzer 5 using graphite material make a diameter of 20~ The container of 75mm, such as graphite crucible, it is preferable that from high purity graphite crucible.A diameter of 20~75mm of crystal vessel is such as low In 20mm or higher than 75mm, will be unable to satisfactory probe is obtained.In this embodiment, electrolyzer 5 is both to make For container containing, simultaneously as using to electrode.
Displacement platform 1 is used for fixing conductive wire 2, and preferably conductive wire 2 is placed in the center of electrolyzer 5, hangs down Directly in 4 liquid level of galvano-cautery solution.Conductive wire 2 can be the metal materials such as tungsten, platinum, it is preferable that conductive wire 2 is a diameter of 0.1~1mm.
Adjustable ac source 3, adjustable ac source 3 under the control of control circuit, to conductive wire 2 and electrolyzer 5 Between apply sinusoidal voltage so that conductive wire 2 is progressively corroded into big L/D ratio cylindrical probe by galvano-cautery solution 4.
Control circuit is divided into two stages for controlling whole electrochemical corrosion:First stage, control adjustable ac source 3 The virtual value of output sinusoidal voltage U1, sinusoidal voltage U1 persistently processes a period of time T1 in 30~45V;Second-order Section, the control output sinusoidal voltage U2 of adjustable ac source 3, the virtual value of sinusoidal voltage U2 is in 15~25V, until corruption Erosion reaction terminates.Wherein, each phase duration of adjustable ac source 3 and switching voltage are controlled automatically complete by control circuit Into.The duration T 1 of U1 is determined according to the length of the part under tinsel immersed in liquid level, to guarantee the tinsel immersion The corrosion rate of subsurface part is 1/20~1/30mm/s.For example, the length of the part under tinsel immersed in liquid level is 3mm, then the duration T 1 of the first sinusoidal voltage is 60~90s.
By above-mentioned preparation facilitiess, conductive wire is placed in the container that graphite material is made, and immersion electrochemical corrosion is molten In liquid, using alternating current caustic solution, in corrosion process through two step high-low voltages etch state, and strict control voltage Size and etching time so that the first stage occurs electrochemistry+electric spark dual corrosion, and it is rotten that second stage only occurs electrochemistry Erosion, and circular cylinder graphite material container guarantees that tinsel is uniformly completed in two stage corrosion, the most conductive gold at last Category silk corrodes into big L/D ratio, the cylindrical probe of submicron-scale.
In above-mentioned embodiment, the container that is made using graphite material had both played the effect of container containing, played to electricity again The effect of pole.Alternative scheme is that common container selected by container, then using the stone of the cylindrical shape of a diameter of 20~75mm Electrode ink directly plays the effect to electrode, and correspondingly, the alternating voltage of applying is then applied to tinsel and cylindric graphite electricity Between pole.By the replacement scheme, big L/D ratio, the cylindrical probe of submicron-scale can be also obtained.
Preferably, above-mentioned graphite material is made container or a diameter of 20~40mm of the graphite electrode of cylindrical shape, when When within the range, relative to the crystal vessel or graphite electrode of other sizes, preferably, periphery is more for the pattern of obtained probe Uniformly.
The parameter of probe prepared by this specific embodiment is described with exemplary embodiment below.
Embodiment 1
The present embodiment electrochemical corrosion platinum filament, prepares submicron order big L/D ratio cylindrical probe, specifically includes following steps:
1) long 10~15mm is intercepted first, and the platinum filament of a diameter of 0.3mm is cleaned by ultrasonic respectively with acetone and deionized water, Then rear clamping is dried up on displacement platform 1 with nitrogen.
2) displacement platform 1 is adjusted, platinum filament 2 is placed in the center of electrolyzer 5 and is immersed in galvano-cautery solution 4, platinum filament end 3mm under portion's immersed in liquid level.The present embodiment carries out the galvano-cautery solution 4 of electrochemical corrosion platinum filament for chlorination that mass fraction is 20% Calcium solution.Electrolyzer 5 be circular graphitic crucible, a diameter of 40mm of graphite crucible.
3) adjustable ac source 3 is opened, applies sinusoidal voltage between platinum filament 2 and electrolyzer 5, platinum filament 2 is carried out Electrochemical corrosion.Wherein, alternating current power supply 3 is controlled by control circuit so that specifically electrochemical corrosion condition is:By adjustable exchange The sinusoidal voltage virtual value of power supply 3 is controlled to 35V, and frequency is 50Hz, persistently processes 60s;Then by adjustable ac source 3 The control of sinusoidal voltage virtual value switch to 20V, until corrosion processing terminates.
4) platinum filament 2 for having corroded is taken out after deionized water cleaning, drying, completes the preparation of cylindrical probe.
As shown in Fig. 2 obtained in the present embodiment probe tip microscopic appearance figure.It can be seen that the shape of probe For cylindric, external corrosion is more uniform.In this specific embodiment, the size of obtained probe is 0.9 micron, major diameter Than for 20.
Embodiment 2:The present embodiment is with the difference of embodiment 1:Length under tinsel immersed in liquid level, electrolyte The parameters of electrochemical corrosion such as the virtual value of mass fraction, the diameter of graphite crucible and sinusoidal voltage different.
The present embodiment electrochemical corrosion platinum filament, prepares submicron order big L/D ratio cylindrical probe, specifically includes following steps:
1) long 10~15mm is intercepted first, and the platinum filament of a diameter of 0.3mm is cleaned by ultrasonic respectively with acetone and deionized water, Then rear clamping is dried up on displacement platform 1 with nitrogen.
2) displacement platform 1 is adjusted, platinum filament 2 is placed in the center of electrolyzer 5 and is immersed in galvano-cautery solution 4, platinum filament end 3mm under portion's immersed in liquid level.The present embodiment carries out the galvano-cautery solution 4 of electrochemical corrosion platinum filament for chlorination that mass fraction is 30% Calcium solution.Electrolyzer 5 be circular graphitic crucible, a diameter of 25mm of graphite crucible.
3) adjustable ac source 3 is opened, applies sinusoidal voltage between platinum filament 2 and electrolyzer 5, platinum filament 2 is carried out Electrochemical corrosion.Wherein, alternating current power supply 3 is controlled by control circuit so that specifically electrochemical corrosion condition is:By adjustable exchange The sinusoidal voltage virtual value of power supply 3 is controlled to 30V, and frequency is 50Hz, persistently processes 90s;Then by adjustable ac source 3 The control of sinusoidal voltage virtual value switch to 18V, until corrosion processing terminates.
4) platinum filament 2 for having corroded is taken out after deionized water cleaning, drying, completes the preparation of cylindrical probe.
As shown in figure 3, obtained in the present embodiment probe tip microscopic appearance figure.It can be seen that the shape of probe For cylindric, external corrosion is more uniform.In this specific embodiment, the size of obtained probe is 0.6 micron, major diameter Than for 24.
Above content is further description made for the present invention with reference to specific preferred implementation, it is impossible to assert The present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention, Some replacements or obvious modification is made on the premise of without departing from present inventive concept, and performance or purposes are identical, should all be considered as Belong to protection scope of the present invention.

Claims (10)

1. a kind of preparation method of probe, it is characterised in that:Comprise the following steps:1) tinsel is immersed in galvano-cautery solution; Wherein, the galvano-cautery solution is mounted in the container that graphite material is made, or is placed with the galvano-cautery solution around institute Cylindric graphite electrode wiry is stated, the graphite electrode is higher by liquid level;Wherein, the container that the graphite material is made straight Footpath or a diameter of 20~75mm of the cylindric graphite electrode;2) between the tinsel and the container, or Applied voltage as follows between the tinsel and the cylindric graphite electrode:First apply the first of 30~45V Sinusoidal voltage, application time guarantee that the corrosion rate of the part under the tinsel immersed in liquid level is 1/30~1/20mm/ s;Then apply second sinusoidal voltage of 15~25V, application time is until corrosion reaction terminates;3) by described in after process Tinsel lifting departs from liquid level, completes the preparation of probe.
2. the preparation method of probe according to claim 1, it is characterised in that:The step 1) in, the graphite material The diameter of the container that makes or a diameter of 20~40mm of the cylindric graphite electrode.
3. the preparation method of probe according to claim 1, it is characterised in that:The step 1) in, the tinsel leaching The length for entering subsurface part is 3mm;The step 2) in, the application time of first sinusoidal voltage is 60~ 90s.
4. the preparation method of probe according to claim 1, it is characterised in that:The step 1) in, described wiry A diameter of 0.1~1mm.
5. the preparation method of probe according to claim 1, it is characterised in that:The step 1) in, the tinsel is Tungsten material or alloy platinum material.
6. the preparation method of probe according to claim 1, it is characterised in that:The step 1) in, the galvano-cautery is molten Liquid is the electrolytic solution configured by calcium chloride, sodium chloride, sodium hydroxide, potassium hydroxide.
7. a kind of preparation facilitiess of probe, it is characterised in that:Including electrolyzer, displacement platform, alternating-current voltage source and control circuit;
The electrolyzer is the container that the graphite material of a diameter of 20~75mm is made, for loading galvano-cautery solution;
The displacement platform is used for fixing preparing raw material tinsel, and scalable makes the tinsel be dipped in the galvano-cautery solution In;
One outfan of the alternating-current voltage source connects the tinsel, and another outfan connects the container, and control signal connects Receiving end connects the control circuit;
The control circuit is used for controlling the first sinusoidal voltage that the alternating-current voltage source first exports 30~45V, when continuing Between guarantee that the corrosion rate of part under the tinsel immersed in liquid level is 1/30~1/20mm/s;Then export 15~25V's Second sinusoidal voltage, the persistent period is until corrosion reaction terminates.
8. preparation facilitiess of probe according to claim 7, it is characterised in that:The container that the graphite material is made straight Footpath is 20~40mm.
9. a kind of preparation facilitiess of probe, it is characterised in that:Including electrolyzer, cylindric graphite electrode, displacement platform, alternating voltage Source and control circuit;
The electrolyzer is used for loading galvano-cautery solution;
The displacement platform is used for fixing preparing raw material tinsel, and scalable makes the tinsel be dipped in the galvano-cautery solution In;
A diameter of 20~75mm of the cylindric graphite electrode, is placed in the galvano-cautery solution, and around the metal Silk is arranged;
One outfan of the alternating-current voltage source connects the tinsel, and another outfan connects the cylindric graphite electrode, Control signal receiving terminal connects the control circuit;
The control circuit is used for controlling the first sinusoidal voltage that the alternating-current voltage source first exports 30~45V, when continuing Between guarantee that the corrosion rate of part under the tinsel immersed in liquid level is 1/30~1/20mm/s;Then export 15~25V's Second sinusoidal voltage, the persistent period is until corrosion reaction terminates.
10. preparation facilitiess of probe according to claim 9, it is characterised in that:The diameter of the cylindric graphite electrode For 20~40mm.
CN201510186082.8A 2015-04-17 2015-04-17 A kind of preparation method of probe and preparation facilitiess Expired - Fee Related CN104785871B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510186082.8A CN104785871B (en) 2015-04-17 2015-04-17 A kind of preparation method of probe and preparation facilitiess

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510186082.8A CN104785871B (en) 2015-04-17 2015-04-17 A kind of preparation method of probe and preparation facilitiess

Publications (2)

Publication Number Publication Date
CN104785871A CN104785871A (en) 2015-07-22
CN104785871B true CN104785871B (en) 2017-03-15

Family

ID=53551301

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510186082.8A Expired - Fee Related CN104785871B (en) 2015-04-17 2015-04-17 A kind of preparation method of probe and preparation facilitiess

Country Status (1)

Country Link
CN (1) CN104785871B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106771377B (en) * 2017-03-14 2023-07-07 贵州大学 Connection structure for vertically fixing probe rod and probe rod fixing method
CN109709353A (en) * 2019-01-11 2019-05-03 中国电子科技集团公司第三十八研究所 A kind of the electrochemistry preparation facilities and preparation method of metal iridium needle point
CN109909569B (en) * 2019-04-23 2021-04-13 中南大学 Method and device for processing high-precision micropores
CN113073376B (en) * 2021-03-03 2022-04-12 上海伟测半导体科技股份有限公司 Application of corrosion powder in shaping platinum probe and shaping method of platinum probe
CN116543982B (en) * 2023-03-23 2024-01-30 清华大学 Microelectrode preparation method and microelectrode

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02274429A (en) * 1989-04-18 1990-11-08 Canon Inc Method and device for manufacturing fine probe
JPH0671519A (en) * 1991-10-22 1994-03-15 Jeol Ltd Manufacture of sharp tip
JPH1010154A (en) * 1996-06-20 1998-01-16 Fujitsu Ltd Manufacture for probe unit
CN101701352A (en) * 2008-12-15 2010-05-05 中国矿业大学(北京) Method for preparing high-resolution emitter tungsten tip and device thereof
CN101696980A (en) * 2009-10-27 2010-04-21 北京大学 Method for preparing pinpoint of nano-tungsten probe
CN102181914A (en) * 2011-03-30 2011-09-14 浙江大学 Preparation process for tunneling scanning microscope probe with reverse exponent shape and depth-to-length-diameter ratio
CN102901846B (en) * 2012-08-30 2015-10-28 中国科学院苏州纳米技术与纳米仿生研究所 The device and method of preparation metal needle point
CN202989329U (en) * 2012-12-06 2013-06-12 东南大学 Device for preparing tungsten probe for electrical test of nanometer device
CN103680760B (en) * 2013-11-12 2016-01-13 南京航空航天大学 Sub-micron ball tip electrode preparation method
CN104096932B (en) * 2014-07-09 2016-08-03 清华大学深圳研究生院 The preparation method of a kind of electrochemistry micro Process electrode and preparation facilities
CN104101738B (en) * 2014-07-10 2016-08-24 华中科技大学 The preparation facilities of a kind of controlled big L/D ratio nano-probe and preparation method

Also Published As

Publication number Publication date
CN104785871A (en) 2015-07-22

Similar Documents

Publication Publication Date Title
CN104785871B (en) A kind of preparation method of probe and preparation facilitiess
CN105312692B (en) Online electrochemical preparation device and method of high-rotation precision micro cylindrical electrode
CN104001998B (en) Array micro group electrode preparation method and the device optimized based on negative electrode
CN107283010A (en) Rotary ultrasonic electrode micro-electrochemical machining spark cutting processing unit (plant) and method
CN105301288B (en) A kind of device and method preparing metal needle point
JP2015038242A (en) Method of synthesizing metal foam, metal foam, method of uses thereof, and device comprising such metal foam
CN108070883A (en) A kind of method that pure nanometer cobalt array is prepared based on anodic oxidation aluminium formwork method
CN109482990A (en) The method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining
CN103940747A (en) Method for observing TA7 titanium alloy metallographic structure
CN111591953B (en) Needle-shaped microelectrode and preparation method thereof
CN106637377B (en) Nickel-base alloy electrolytic polishing liquid and its polishing method
CN102339704A (en) Alternating-current electrochemical corrosion method of field emission electron source
CN103308371A (en) Corrosion method for displaying austenitic stainless steel 310S continuous casting dendritic tissue
CN104096932B (en) The preparation method of a kind of electrochemistry micro Process electrode and preparation facilities
CN109709353A (en) A kind of the electrochemistry preparation facilities and preparation method of metal iridium needle point
CN107723748B (en) Application of the hollow plasma electrode of normal pressure in molten-salt electrolysis
CN108866582A (en) A kind of technique of electrodeposition process preparation roughening nickel foil
CN108588810A (en) A kind of preparation process of porous tantalum piece
JP2006514712A (en) Electro-polishing method for nickel-titanium alloy dental instruments
KR101349354B1 (en) anodic oxidation system using parallel operation process
Choo et al. Flexible tooling for localized electrochemical deposition with wire-electrodischarge grinding
CN108060436B (en) A method of nano-wire array is prepared using low-melting-point metal as bridging agent
CN207816682U (en) A kind of aluminum alloy extrusion section bar microscopic structure prepares metallographic specimen electrode in examining
CN110158140A (en) The fine hollow electrode side wall insulating layer preparation facilities and method of bipolarity electrophoresis
CN104746122A (en) Method for preparing high-quality anodized aluminum template by monitoring oxide layer removal time in real time

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170315