CN108193261A - A kind of magnesium alloy pipe inner surface electrochemical polish structure - Google Patents
A kind of magnesium alloy pipe inner surface electrochemical polish structure Download PDFInfo
- Publication number
- CN108193261A CN108193261A CN201810161539.3A CN201810161539A CN108193261A CN 108193261 A CN108193261 A CN 108193261A CN 201810161539 A CN201810161539 A CN 201810161539A CN 108193261 A CN108193261 A CN 108193261A
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- China
- Prior art keywords
- magnesium alloy
- alloy pipe
- cathode
- electrochemical polish
- tubular structure
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Classifications
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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
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
- C25F3/18—Polishing of light metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
Abstract
The present invention relates to a kind of magnesium alloy pipe inner surface electrochemical polish structure, including cathode line, cathode coil, cathode port, tubular structure, polishing fluid pipeline and anode port.In the present invention cathode line along magnesium alloy pipe axially across and the both ends of cathode line are electrically connected respectively by cathode coil with cathode port；The both ends of magnesium alloy pipe closely connect homoaxial tubular structure respectively, and cathode coil is located in tubular structure and tubular structure is connected with polishing fluid pipeline in the side far from magnesium alloy pipe；Anode port is in contact with magnesium alloy pipe, anode port can be powered with cathode port with external power supply, the electrical connection access of electrochemical polish is formed, polishing fluid is flowed by the polishing fluid pipeline of magnesium alloy pipe side, is flowed out by the polishing fluid pipeline of magnesium alloy pipe opposite side.Above structure is simple to operation, it can be achieved that the efficiently and effectively polishing treatment of magnesium alloy pipe inner surface, and efficient and polishing is uniform.
Description
Technical field
The present invention relates in medical industry metal pipe material inner surface treatment device field more particularly to a kind of magnesium alloy pipe
Surface electrochemistry polishes structure.
Background technology
In recent years, absorbable stent often is made using magnesium alloy, because magnesium elements are present in the various tissues of human body,
A variety of biological respinses are participated in, meanwhile, magnesium alloy has many advantages, such as low-density, low elastic modulus, high specific strength, degradable, therefore
Magnesium alloy has innate advantage as novel absorbable medical instrument material.
However, the magnesium alloy pipe needed for magnesium alloy blood vessel rack be mostly by squeezing, rolling, the techniques such as drawing add
What work formed, deformation process easily leaves deformation gauffer in the inner surface of the low magnesium alloy pipe of deformation plasticity, increases magnesium and closes
So as to cause when carrying out laser cutting engraving to magnesium alloy pipe, there is burning or cuts not in the roughness of golden internal surface of pipe
Saturating situation further influences the bright and clean degree of magnesium alloy pipe inner surface.However, as interventional medical device material, slightly
Rough inner surface can cause platelet aggregation and deformation, blood coagulation system and fibrinolytic system etc. impacted, influence bio-compatible, because
This, needs to be processed by shot blasting the inner surface of magnesium alloy pipe.
Since the internal diameter of the magnesium alloy pipe as intravascular stent is small, magnesium alloy should not be handled by way of mechanical processing
The inner surface of tubing；Pass through the chemical treatment extent of reaction not easy to control and polishing uniformity, it is difficult to effectively eliminate magnesium alloy
The roughness of internal surface of pipe；The mode of electrochemical polish is relatively suitable, therefore, it is necessary to design table in a kind of magnesium alloy pipe
Face electrochemical polish structure carries out efficiently and effectively polishing treatment to realize to magnesium alloy pipe inner surface.
Invention content
The technical problems to be solved by the invention are to provide a kind of magnesium alloy pipe inner surface electrochemical polish structure,
Using the device of the invention, it can realize and magnesium alloy pipe inner surface is efficiently and effectively thrown with the method for electrochemical polish
Light processing effectively avoids existing machinery polishing and deficiency of the chemical polishing when handling magnesium alloy pipe inner surface.
Technical solution is used by the present invention solves above-mentioned technical problem：
A kind of magnesium alloy pipe inner surface electrochemical polish structure, including：Pass axially through the moon inside magnesium alloy pipe
Polar curve, the both ends of the cathode line respectively connect cathode coil, and the cathode coil is electrically connected with cathode port；Magnesium alloy pipe
Both ends respectively closely connect tubular structure, the tubular structure and magnesium alloy pipe are coaxial, and the cathode coil is located at
In the tubular structure；The tubular structure is respectively connected with polishing fluid pipeline in the side far from magnesium alloy pipe；Further include sun
Extreme mouth, the anode port are in contact with magnesium alloy pipe；It the anode port can same external power supply with the cathode port
It is powered.
In a preferred embodiment, it is wound with insulated coil in the cathode line, the insulated coil is by described the moon
The inner surface of polar curve and magnesium alloy pipe separates.
In a preferred embodiment, the tubular structure opens up and magnesium alloy in the side close to magnesium alloy pipe
The groove of the tube wall clamping of tubing.
In a preferred embodiment, the inner wall setting bulge-structure of the groove, further clamping magnesium-alloy tube
The tube wall of material.
In a preferred embodiment, the tubular structure includes interior buckle and outer buckle, and the interior buckle is located at
The inside of the outer buckle, the cathode coil are located in the hollow cavity of the interior buckle, the interior buckle, the outer buckle
It is clamped with magnesium alloy pipe.
In a preferred embodiment, the interior outer wall contacted with magnesium alloy pipe that is buckled is equipped with protrusion and ties
Structure, the outer inner wall contacted with magnesium alloy pipe that is buckled are equipped with bulge-structure, and the further clamping magnesium of bulge-structure closes
The tube wall of golden tubing.
In a preferred embodiment, the cathode coil is elastic cathode coil.
In a preferred embodiment, the polishing fluid pipeline is made of with the tubular structure insulating materials,
In a preferred embodiment, the anode port is embedded in the tubular structure and and magnesium alloy pipe
Tube wall contact, the tubular structure is provided with conduction in the corresponding position that the anode port is in contact with magnesium alloy pipe
Piece.
In a preferred embodiment, the cathode port be embedded in the tubular structure and with the cathode line
Circle electrical connection.
The beneficial effects of the invention are as follows：
In the present invention cathode line along magnesium alloy pipe axially across, and the both ends of cathode line respectively by cathode coil with
Cathode port is electrically connected；The both ends of magnesium alloy pipe closely connect homoaxial tubular structure respectively, and cathode coil is located at tubulose
In structure and tubular structure is connected with polishing fluid pipeline in the side far from magnesium alloy pipe；Anode port and magnesium alloy pipe phase
Contact, anode port can be powered with cathode port with external power supply, form the electrical connection access of electrochemical polish, polishing fluid is by magnesium
The polishing fluid pipeline of alloy pipe side flows into, and is flowed out by the polishing fluid pipeline of magnesium alloy pipe opposite side.Above structure is simple
It is easy to operate, it can be achieved that the efficiently and effectively polishing treatment of magnesium alloy pipe inner surface, efficient and polishing is uniform.
Description of the drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the composition structure diagram of one embodiment of the invention.
Specific embodiment
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and attached drawing clear
Chu, complete description, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that in situation about not conflicting
Under, the feature in embodiment and embodiment in the application can be combined with each other.
It should be noted that unless otherwise specified, when a certain feature is referred to as " fixing ", " connection " is in another feature,
It can directly fix, be connected in another feature, can also fix, be connected in another feature indirectly.In addition, this
The descriptions such as the upper and lower, left and right used in invention are only to be closed relative to the mutual alignment of each component part of the present invention in attached drawing
For system.
In addition, unless otherwise defined, the technology of all of technologies and scientific terms used here by the article and the art
The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without
It is to limit the present invention.Term as used herein " and/or " including the arbitrary of one or more relevant Listed Items
Combination.
Fig. 1 is the composition structure diagram of one embodiment of the invention, with reference to Fig. 1, magnesium alloy pipe inner surface electrification
Optical polishing structure includes：
Polishing fluid pipeline 1, cathode port 2, it is outer buckle 3, it is interior buckle 4, cathode coil 5, insulated coil 7, cathode line 8 and
Anode port 9.
For convenience of description, magnesium alloy pipe 6 is also illustrated in figure.
In the present invention, cathode line 8 is along magnesium alloy pipe 6 axially across magnesium alloy pipe 6, the both ends of magnesium alloy pipe 6
Tubular structure is closely respectively connected with, tubular structure and magnesium alloy pipe 6 are coaxial, and cathode coil 5 is located in tubular structure, cloudy
The both ends of polar curve 8 are respectively electrically connected with cathode coil 5, and cathode coil 5 is electrically connected with cathode port 2.Tubular structure is far from magnesium
The side of alloy pipe 6 is respectively connected with polishing fluid pipeline 1, i.e. the both ends of magnesium alloy pipe 6 are connected separately with by tubular structure
Polishing fluid pipeline 1, polishing fluid flows through tubular structure, magnesium alloy pipe 6 by the polishing fluid pipeline 1 of 6 one end of magnesium alloy pipe, then leads to
The tubular structure and polishing fluid pipeline 1 for crossing the other end flow out.The invention also includes anode port 9, anode port 9 and magnesium-alloy tube
Material 6 contacts, and anode port 9 can be powered with cathode port 2 with external power supply, form the electrical connection access of electrochemical polish.Herein,
Preferably, anode port 9 and cathode port 2 are standard port, are connected with facilitating with external power supply.Herein, it is preferable that cloudy
The both ends of polar curve 8 are there are junction button (not shown), cathode line 8 to be facilitated to be connect by junction button with cathode coil 5.
For the magnesium alloy pipe 6 of the thin footpath as medical equipment, reasonable stream of the control polishing fluid in magnesium alloy pipe
Dynamic is an important factor for obtaining high-quality polished inner surface, and above structure is simple to operation, it can be achieved that magnesium alloy pipe inner surface
Efficiently and effectively polishing treatment, efficient and polishing are uniform.It, can be with reference to above-mentioned polishing structure using electrochemical polish principle
Effectively avoid existing machinery polishing and deficiency of the chemical polishing when handling magnesium alloy pipe inner surface.
In the present embodiment, it is preferable that insulated coil 7 is wound in cathode line 8, the effect of insulated coil 7 herein is will be cloudy
Polar curve 8 and the inner surface of magnesium alloy pipe 6 separate, and make the cathode line 8 connected with cathode port 2 and contact with anode port 9
The tube wall of magnesium alloy pipe 6 keeps certain distance.Insulated coil 7 herein is preferably helical plastic coil, is formed in the circumferential
The space of housing insulation coil 7.Herein, it is preferable that the cathode coil 5 of the both ends connection of cathode line 8 is elastic cathode coil,
In selection a certain range after the cathode line 8 of suitable length, by the adjusting of elastic cathode coil, cathode line 8 is made to be in tight shape
State further ensures that and remains certain distance between the tube wall of cathode line 8 and magnesium alloy pipe 6.
In the present embodiment, it is preferable that tubular structure opens up and magnesium alloy pipe 6 in the side close to magnesium alloy pipe 6
The groove (being not marked in figure) of tube wall clamping, makes tubular structure that need not can be realized with magnesium alloy pipe 6 by other connectors
Close connection.Herein, it is preferable that the inner wall setting bulge-structure (not shown) of above-mentioned groove makes tubular structure further
The tube wall of clamping magnesium alloy pipe 6, stable connection are reliable.
In the present embodiment, it is preferable that tubular structure can include interior buckle 4 and outer buckle 3, and interior buckle 4 is located at outer buckle 3
Inside, cathode coil 5 be located at it is interior buckle 4 hollow cavity in, it is interior buckle 4, it is outer buckle 3 with 6 tight clamping fit of magnesium alloy pipe.
Herein, it is preferable that the outer wall that interior buckle 4 is contacted with magnesium alloy pipe 6 is equipped with bulge-structure (not shown), outer buckle 3
The inner wall contacted with magnesium alloy pipe 6 is equipped with bulge-structure (not shown), and bulge-structure makes interior buckle 4 and outer buckle 3
The tube wall of further clamping magnesium alloy pipe 6.Certainly, interior buckle 4 can also be integrally formed with outer buckle 3 herein, make tubulose knot
The globality of structure is more preferable, and seal is more preferable, saves connector, simplifies structure.
In the present embodiment, it is preferable that polishing fluid pipeline 1 is made of with tubular structure insulating materials, such as polishes liquid pipe
Road 1 can select rubber tube.At this point, anode port 9 is embedded in tubular structure and is contacted with the tube wall of magnesium alloy pipe 6, manage
Shape structure is provided with conductive sheet (being not marked in figure) in anode port 9 with the corresponding position that magnesium alloy pipe 6 is in contact, to protect
Card is electrically connected reliable and stable；Cathode port 2 is embedded in tubular structure and anodes port 9 and the moon is electrically connected with cathode coil 5
Extreme mouth is embedded in the inside of magnesium alloy pipe 6, and installation is reliable and stable, saves space.
It, can be by adjusting polishing fluid in magnesium alloy when using above-mentioned magnesium alloy pipe inner surface electrochemical polish structure
In tubing 6 by flow velocity, by duration and structure in be electrically connected access voltage, adjust in magnesium alloy pipe 6
The polishing action on surface.In use, ensure junction in above structure without polishing fluid overflow, to ensure that structure cleaning is electric
The stabilization of connecting path.According to the inner surface situation of magnesium alloy pipe 6, it can select in electrochemical polishing process, give magnesium
6 ultrasonic vibration of alloy pipe makes polishing product be polished liquid stream and takes away, and accelerates surface polishing efficiency.
It is that the preferable of the present invention is implemented to be illustrated, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations under the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of magnesium alloy pipe inner surface electrochemical polish structure, which is characterized in that including：Pass axially through magnesium alloy pipe
Internal cathode line, the both ends of the cathode line respectively connect cathode coil, and the cathode coil is electrically connected with cathode port；Magnesium
The both ends of alloy pipe respectively closely connect tubular structure, and the tubular structure and magnesium alloy pipe are coaxial, and the cathode
Coil is located in the tubular structure；The tubular structure is respectively connected with polishing fluid pipeline in the side far from magnesium alloy pipe；
Anode port is further included, the anode port is in contact with magnesium alloy pipe；It the anode port can be same with the cathode port
External power supply is powered.
2. magnesium alloy pipe inner surface electrochemical polish structure according to claim 1, it is characterised in that：The cathode line
On be wound with insulated coil, the insulated coil separates the inner surface of the cathode line and magnesium alloy pipe.
3. magnesium alloy pipe inner surface electrochemical polish structure according to claim 2, it is characterised in that：The tubulose knot
Structure opens up the groove being clamped with the tube wall of magnesium alloy pipe in the side of close magnesium alloy pipe.
4. magnesium alloy pipe inner surface electrochemical polish structure according to claim 3, it is characterised in that：The groove
Inner wall sets bulge-structure, the tube wall of further clamping magnesium alloy pipe.
5. magnesium alloy pipe inner surface electrochemical polish structure according to claim 2, it is characterised in that：The tubulose knot
Structure includes interior buckle and outer buckle, and for the interior buckle positioned at the inside of the outer buckle, the cathode coil is located at the interior card
In the hollow cavity of button, the interior buckle, the outer buckle are clamped with magnesium alloy pipe.
6. magnesium alloy pipe inner surface electrochemical polish structure according to claim 5, it is characterised in that：The interior buckle
The outer wall contacted with magnesium alloy pipe is equipped with bulge-structure, also is provided on the outer inner wall contacted with magnesium alloy pipe that is buckled
Bulge-structure, the tube wall of the further clamping magnesium alloy pipe of bulge-structure.
7. magnesium alloy pipe inner surface electrochemical polish structure according to any one of claim 1 to 6, feature exist
In：The cathode coil is elastic cathode coil.
8. magnesium alloy pipe inner surface electrochemical polish structure according to claim 7, it is characterised in that：The polishing fluid
Pipeline is made of with the tubular structure insulating materials.
9. magnesium alloy pipe inner surface electrochemical polish structure according to claim 8, it is characterised in that：The anode tap
Mouth is embedded in the tubular structure and is contacted with the tube wall of magnesium alloy pipe, and the tubular structure is in the anode port and magnesium
The corresponding position that alloy pipe is in contact is provided with conductive sheet.
10. magnesium alloy pipe inner surface electrochemical polish structure according to claim 8 or claim 9, it is characterised in that：Described the moon
Extreme mouth is embedded in the tubular structure and is electrically connected with the cathode coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161539.3A CN108193261A (en) | 2018-02-27 | 2018-02-27 | A kind of magnesium alloy pipe inner surface electrochemical polish structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161539.3A CN108193261A (en) | 2018-02-27 | 2018-02-27 | A kind of magnesium alloy pipe inner surface electrochemical polish structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108193261A true CN108193261A (en) | 2018-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810161539.3A Pending CN108193261A (en) | 2018-02-27 | 2018-02-27 | A kind of magnesium alloy pipe inner surface electrochemical polish structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089073A (en) * | 2021-03-30 | 2021-07-09 | 中国工程物理研究院机械制造工艺研究所 | Flexible electrode for electrochemical polishing and electrochemical polishing method for inner cavity structure |
| CN114959864A (en) * | 2022-05-25 | 2022-08-30 | 南京航空航天大学 | Flexible twisted cathode and electrochemical polishing complex inner channel method thereof |
| CN114990687A (en) * | 2022-07-22 | 2022-09-02 | 苏州心岭迈德医疗科技有限公司 | Electrochemical polishing device, use method thereof and workpiece with pump inserted through conduit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202072789U (en) * | 2011-05-20 | 2011-12-14 | 西北有色金属研究院 | Inner wall electrolytic polishing device of metal tube with small diameter |
| CN103436948A (en) * | 2013-08-19 | 2013-12-11 | 上海国舜化工设备有限公司 | Electrochemical polishing liquid for inner wall of stainless steel pipe as well as polishing method and device of electrochemical polishing liquid |
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2018
- 2018-02-27 CN CN201810161539.3A patent/CN108193261A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202072789U (en) * | 2011-05-20 | 2011-12-14 | 西北有色金属研究院 | Inner wall electrolytic polishing device of metal tube with small diameter |
| CN103436948A (en) * | 2013-08-19 | 2013-12-11 | 上海国舜化工设备有限公司 | Electrochemical polishing liquid for inner wall of stainless steel pipe as well as polishing method and device of electrochemical polishing liquid |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089073A (en) * | 2021-03-30 | 2021-07-09 | 中国工程物理研究院机械制造工艺研究所 | Flexible electrode for electrochemical polishing and electrochemical polishing method for inner cavity structure |
| CN114959864A (en) * | 2022-05-25 | 2022-08-30 | 南京航空航天大学 | Flexible twisted cathode and electrochemical polishing complex inner channel method thereof |
| CN114959864B (en) * | 2022-05-25 | 2024-02-13 | 南京航空航天大学 | Flexible torsion cathode and electrochemical polishing method for complex inner channel thereof |
| CN114990687A (en) * | 2022-07-22 | 2022-09-02 | 苏州心岭迈德医疗科技有限公司 | Electrochemical polishing device, use method thereof and workpiece with pump inserted through conduit |
| CN114990687B (en) * | 2022-07-22 | 2023-09-12 | 苏州心岭迈德医疗科技有限公司 | Electrochemical polishing device, application method thereof and workpiece inserted into pump through guide pipe |
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