CN106119945A - Termination processing method when a kind of drawing iridium and B alloy wire thereof - Google Patents
Termination processing method when a kind of drawing iridium and B alloy wire thereof Download PDFInfo
- Publication number
- CN106119945A CN106119945A CN201610632650.7A CN201610632650A CN106119945A CN 106119945 A CN106119945 A CN 106119945A CN 201610632650 A CN201610632650 A CN 201610632650A CN 106119945 A CN106119945 A CN 106119945A
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- China
- Prior art keywords
- iridium
- wire
- iridium wire
- nacl
- anode
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/12—Pickling; Descaling in melts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Termination processing method when the invention discloses a kind of drawing iridium and B alloy wire thereof, the diameter iridium wire less than 1.0mm is put in melted Nacl and is electrolysed, DC voltage 80V, after iridium wire slowly puts into the NaCl molten bath 100mm degree of depth, the most slowly enhance, All Time is 3min, during electrolysis, unidirectional current is used to be electrolysed, with iron staff as negative electrode, iridium wire is anode, when voltage rises near 100V, obvious anode effect is there will be near the iridium wire of anode, now have bright sparklet around iridium wire, bubble stops at and separates out near iridium wire, when anode effect occurs, reducing voltage makes anode effect disappear, now the corrosion rate of iridium is the fastest.The present invention use electrochemical corrosion in melted NaCl carry out drawing head process can avoid mechanical grinding occurs irregular, ovality is poor, fineness is poor and the problem of surface scratch etc..
Description
Technical field
The invention belongs to Machining Technology field, specifically, relate to end when a kind of drawing iridium and B alloy wire thereof
Reason method.
Background technology
Iridium is a kind of precious metal, the highly stable very difficult corrosion of its chemical property and have the most crisp below 600 DEG C
Property, during iridium wire drawing, before each drawing, it being required for wearing silk, this needs silk material head 50～100mm length range interior diameter gradual change.
During other common materials wire drawing, the material that plasticity is good can obtain reducing head by the way of room temperature cold conditions deforms；Tungsten, molybdenum filament etc.
The material of room temperature plasticity difference can obtain reducing head by the way of chemical attack.But both modes are unsuitable for iridium.
Generally iridium wire head is to obtain by the way of mechanical grinding, but along with silk material diameter is increasingly thinner, the difficulty of polishing
Degree strengthens, but its effect is difficult to ensure that.Iridium and alloy thereof belong to brittle materials and are easily broken off in the course of processing, table during polishing
Face is easily generated cut, and this cut often leads to a material wired head in drawing process and is prone to fracture, causes production to hold
Continue and carry out.When iridium wire diameter is less than 1.0mm, polishing becomes abnormal difficult, and in silk material drawing process, broken end frequently makes to draw
Pull out and be difficult to persistently carry out.When iridium wire diameter is less than 0.6mm, the head of mechanical grinding end breakage rate in drawing process significantly goes up
Rising, silk material drawing produces and is almost difficult to persistently carry out.
Summary of the invention
Termination processing method when it is an object of the invention to provide a kind of drawing iridium and B alloy wire thereof, the method uses molten
Melt electrochemical corrosion in NaCl carry out drawing head process can avoid mechanical grinding occurs irregular, ovality is poor, fineness
Difference and the problem of surface scratch etc., the fusing point of pure NaCl is 801 DEG C, and to start temperature 800 DEG C identical, at this with the recrystallization of iridium
At a temperature of corrode, on the one hand persistently carry out owing to temperature is sufficiently high, and at the newborn Cl of conductive melt and electrolysis2The effect of molecule
Lower corrosion rate is sufficiently fast, and temperature is of a sufficiently low simultaneously, is not result in iridium wire generation recrystallization, if iridium wire occurs recrystallization, the most broken
Being broken fibrous tissue, postorder drawing is just difficult to continue
Its concrete technical scheme is:
Termination processing method when a kind of drawing iridium and B alloy wire thereof, comprises the following steps: diameter is less than the iridium wire of 1.0mm
Put in melted Nacl and be electrolysed, DC voltage 80V, after iridium wire slowly puts into the NaCl molten bath 100mm degree of depth, more slowly it is lifted out
Coming, All Time is 3min, during electrolysis, uses unidirectional current to be electrolysed, and with iron staff as negative electrode, iridium wire is anode, when voltage liter
Time near 100V, there will be obvious anode effect near the iridium wire of anode, now around iridium wire, have bright sparklet,
Bubble stops at and separates out near iridium wire, when there is anode effect, reduces voltage and makes anode effect disappear, now the corrosion speed of iridium
Spend the fastest.
Further, iridium wire is put into and measures after clear water is cleaned, now iridium wire end tube reducing 0.1～0.14mm.
Compared with prior art, the invention have the benefit that
The present invention uses electrochemical corrosion in melted NaCl to carry out drawing head process can avoid appearance in mechanical grinding
Irregularly, ovality is poor, fineness is poor and the problem of surface scratch etc., and the fusing point of pure NaCl is 801 DEG C and opens with the recrystallization of iridium
Beginning temperature 800 DEG C is identical, corrodes at this temperature, on the one hand persistently carries out owing to temperature is sufficiently high, and in conductive melt
Cl newborn with electrolysis2Under the effect of molecule, corrosion rate is sufficiently fast, and temperature is of a sufficiently low simultaneously, is not result in that iridium wire occurs to tie again
Brilliant.The present invention is region gradual change tube reducing to iridium wire termination 50～100mm by the way of electrolysis in melted NaCl, for lower together
Wear silk during drawing and provide condition.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is described in more detail.
Embodiment 1
The iridium wire of diameter 0.4mm, puts in melted Nacl and is electrolysed, and iridium wire is slowly put into NaCl and melted by DC voltage 80V
The most slowly enhancing after the 100mm degree of depth of pond, All Time is 3min, is put into by iridium wire and measures after cleaning in clear water, now iridium
Silk end tube reducing 0.1mm, the afterwards smooth transition of 100mm length range interior diameter.Carry out wearing a drawing with this silk material afterwards, become
Power position is 96%.
Embodiment 2
The iridium wire of diameter 0.6mm, puts in melted Nacl and is electrolysed, and iridium wire is slowly put into NaCl and melted by DC voltage 80V
The most slowly enhancing after the 100mm degree of depth of pond, All Time is 3min, is put into by iridium wire and measures after cleaning in clear water, now iridium
Silk end tube reducing 0.12mm, the afterwards smooth transition of 100mm length range interior diameter.Carry out wearing a drawing with this silk material afterwards,
Success rate position is 97%.
Embodiment 3
The iridium wire of diameter 0.5mm, puts in melted Nacl and is electrolysed, and iridium wire is slowly put into NaCl and melted by DC voltage 80V
The most slowly enhancing after the 100mm degree of depth of pond, All Time is 3min, is put into by iridium wire and measures after cleaning in clear water, now iridium
Silk end tube reducing 0.14mm, the afterwards smooth transition of 100mm length range interior diameter.Carry out wearing a drawing with this silk material afterwards,
Success rate position is 98%.
Embodiment 4
The iridium wire of diameter 1.6mm, uses the mode of conventional mechanical polishing, carries out wearing a drawing with this silk material afterwards, becomes
Power position is 9,0%.
Practical operation finds, when iridium wire diameter is more than 1.5mm, uses the mode of conventional mechanical polishing to have sufficiently high
Efficiency and wear a success rate, when iridium wire diameter is less than 1.0mm, electrochemical corrosion is worn a success rate due to the highest and substantially accounted for
Excellent.Along with iridium wire diameter is the thinnest, the advantage of electrochemical corrosion is the most obvious.
The above, the only present invention preferably detailed description of the invention, protection scope of the present invention is not limited to this, any ripe
Know those skilled in the art in the technical scope of present disclosure, the letter of the technical scheme that can become apparent to
Altered or equivalence are replaced and are each fallen within protection scope of the present invention.
Claims (2)
1. termination processing method when a drawing iridium and B alloy wire thereof, it is characterised in that comprise the following steps: diameter is less than
The iridium wire of 1.0mm is put in melted Nacl and is electrolysed, DC voltage 80V, after iridium wire slowly puts into the NaCl molten bath 100mm degree of depth,
The most slowly enhancing, All Time is 3min, during electrolysis, uses unidirectional current to be electrolysed, and with iron staff as negative electrode, iridium wire is sun
Pole, when voltage rises near 100V, there will be obvious anode effect, now has bright around iridium wire near the iridium wire of anode
Bright sparklet, bubble stops at and separates out near iridium wire, when there is anode effect, reduces voltage and makes anode effect disappear, this
Time iridium corrosion rate the fastest.
Termination processing method when drawing iridium the most according to claim 1 and B alloy wire thereof, it is characterised in that iridium wire is put into
Measure after clear water is cleaned, now iridium wire end tube reducing 0.1～0.14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632650.7A CN106119945B (en) | 2016-08-01 | 2016-08-01 | Termination processing method when a kind of drawing iridium and its B alloy wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632650.7A CN106119945B (en) | 2016-08-01 | 2016-08-01 | Termination processing method when a kind of drawing iridium and its B alloy wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106119945A true CN106119945A (en) | 2016-11-16 |
| CN106119945B CN106119945B (en) | 2017-12-15 |
Family
ID=57255792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610632650.7A Expired - Fee Related CN106119945B (en) | 2016-08-01 | 2016-08-01 | Termination processing method when a kind of drawing iridium and its B alloy wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106119945B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078954A (en) * | 2009-11-27 | 2011-06-01 | 曹传新 | Method for manufacturing metal iridium blank and anomalous wire thereof |
| CN102776537A (en) * | 2012-07-17 | 2012-11-14 | 北京航空航天大学 | Method for preparing Ir layer on Pt matrix in chloride fused salt system through electrolytic deposition |
| CN103806044A (en) * | 2014-01-24 | 2014-05-21 | 中国人民解放军国防科学技术大学 | Method for preparing iridium coating by virtue of electrolysis in cesium hexachloroiridate-chloride fused salt system |
-
2016
- 2016-08-01 CN CN201610632650.7A patent/CN106119945B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078954A (en) * | 2009-11-27 | 2011-06-01 | 曹传新 | Method for manufacturing metal iridium blank and anomalous wire thereof |
| CN102776537A (en) * | 2012-07-17 | 2012-11-14 | 北京航空航天大学 | Method for preparing Ir layer on Pt matrix in chloride fused salt system through electrolytic deposition |
| CN103806044A (en) * | 2014-01-24 | 2014-05-21 | 中国人民解放军国防科学技术大学 | Method for preparing iridium coating by virtue of electrolysis in cesium hexachloroiridate-chloride fused salt system |
Non-Patent Citations (1)
| Title |
|---|
| 徐津津: "《科学技术百科全书 第七卷 无机化学》", 31 October 1980 * |
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| CN106119945B (en) | 2017-12-15 |
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Granted publication date: 20171215 Termination date: 20180801 |