CN1912185A - Lifting device and method for processing alloy wire with continuous or step taper at end - Google Patents
Lifting device and method for processing alloy wire with continuous or step taper at end Download PDFInfo
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- CN1912185A CN1912185A CN 200610010455 CN200610010455A CN1912185A CN 1912185 A CN1912185 A CN 1912185A CN 200610010455 CN200610010455 CN 200610010455 CN 200610010455 A CN200610010455 A CN 200610010455A CN 1912185 A CN1912185 A CN 1912185A
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Abstract
The invention relates to a mechanics pulling device and the method used it to process superfine metal alloy silk material. The electric machine of the pulling device is fixed on the upper end of the frame whose lower end is fixed on the table board. The electricity input end of the electric machine is connected with the outlet end of the periphery control device. The output end is connected with the upper end of the leading screw whose lower end is fixed in blind hole of the fixing. Pulling moving machine is covered on the leading screw. The invention has low cost, and is good for popularizing and application.
Description
Technical field
The present invention relates to a kind of mechanical pulling apparatus and utilize it to process the method for superfine metal alloy wire.
Background technology
Wicresoft hinders (or in blood vessel) interventional therapeutic technique and refers under the guiding of image documentation equipment the Clinics and Practices operation that utilizes apparatuses such as puncture nail, seal wire, conduit and support to carry out.This technology belongs to Wicresoft and hinders interventional therapy, need not operate on, and only needs toponarcosis, have hemorrhage less, wound is few, complication is few, safe and reliable, advantage such as operative results is fast.Seal wire as one of intervention apparatus has the effect of conduit through other tube chambers of skin introducing blood vessel or human body, and is to assist the conduit selectivity to enter the important tool of changing conduit in minute blood vessel branch or other pathology lacunas and the operation.The end has continuously or the seal wire of step taper has a wide range of applications in intervention diagnosis and treatment, especially in getting involved neuroscience, cranial cavity Clinics and Practices.Wire distal has continuously or the tapering of step helps by narrow, zigzag vascular system.Stainless steel or Ni-Ti alloy are the ideal materials of processing seal wire, because it can guarantee enough intensity and elasticity.But to the mechanical workout of these two kinds of silk materials relatively difficulty, especially Ni-Ti alloy yield tensile ratio height, Young's modulus is low, resilience is big, cutting temperature is high, is difficult to carry out machine finshing, is a kind of unmanageable alloy.The traditional method of seal wire processing is a mechanical workout, what generally adopt is the centreless grinding method, but the mechanical workout equipment used is relatively costly, tooling cost is higher, and can stay work hardening layer at alloy surface after the grinding, and this layer often becomes the fatigue cracking source that causes inefficacy in the use.
Summary of the invention
For there are problems such as work hardening phenomenon in the surface after the apparatus expensive, tooling cost height and the processing that solve present traditional seal wire working method existence, the invention provides the method that a kind of pulling apparatus and processing end have continuous or step taper alloy wire.This method adopts the method that lifts corrosion processing seal wire tapering: promptly the silk material contacts with effective corrosion processing solution, control corrosion speed by controlling pull rate and corrosion processing strength of solution and temperature, dissolve equably thereby can control the silk material, and along the tapering that forms continuously or have step on the length direction of silk material.
Pulling apparatus of the present invention comprises motor, leading screw, lifts locomotorium, dip direction, speed, number of times are controlled peripheral control device and support, motor is fixed on the upper end of support, the lower end of support is fixed on the table top, the input terminus of motor is communicated with the output terminal of the peripheral control device that dip direction, speed, number of times are controlled, the output shaft of motor is connected with the upper end of leading screw, the lower end of leading screw is fixed in the blind hole of shaft joint, lift locomotorium by nut sleeve on leading screw.
End involved in the present invention has the working method of the ultra-fine wire of continuous tapering, may further comprise the steps successively: a, preparation are used to dissolve the corrosion processing solution of alloy, and the temperature of control corrosion processing solution is 50～80 ℃; B, the silk material is fixed on the above-mentioned pulling apparatus, realize immersion and the proposition of silk material in corrosion processing solution by the peripheral control device that dip direction, speed, number of times are controlled, the control pull rate is 0.15～0.3m/min, lift 5～12 times, must arrive the silk material that the end has certain tapering continuously.
End involved in the present invention has the working method of the ultra-fine wire of step taper, and it may further comprise the steps successively: a, preparation are used to dissolve the corrosion processing solution of alloy, and the temperature of control corrosion processing solution is 50～80 ℃; B, the silk material is fixed on the above-mentioned pulling apparatus; step taper size according to required processing is immersed in certain hour in the corrosion processing solution with the silk material; after obtaining desired size; with have enough solidity to corrosions, non-foaming, do not come off, non-leakage, the processed part of drying temperature is low (room temperature) protection glue coating; then by lifting the tapering of corrosion processing transition shoulder part; can obtain the step taper of certain size, the control pull rate is 0.15～0.3m/min, lifts 5～12 times.
Silk material of the present invention is any metal alloy material that other field was implanted or be applied to human body that can be used for, and diameter is generally below 1mm.
The present invention is in order to nitric acid (HNO
3) or hydrochloric acid (HCl) be the etching reagent of base as the corrosion processing solution of stainless steel ultra-fine wire, for example a kind of is that 50% hydrochloric acid and volume ratio are that the mixing solutions that 13% nitric acid is formed is fit to for most of stainless steel capital by volume ratio.The present invention's hydrofluoric acid (HF), nitric acid (HNO
3) and water (H
2O) mixing solutions is as the nearly corrosion processing solution that waits atomic ratio nitinol alloy wire material.Wherein hydrofluoric acid (HF) is to impel nearly atomic ratio Ni-Ti alloy dissolved etching reagent, the nitric acid (HNO of waiting
3) be oxygenant, can suppress the generation and raising surfaceness of hydrogen.
The present invention relates to peripheral control device control motor positive and inverse and the rotating speed of a cover by dip direction, speed, number of times are controlled, utilize leading screw to cooperate to realize the device lift with nut, it can be implemented in the corrosion processing process to processed silk material carry out adjustable at the uniform velocity or speed change back and forth lift.Simultaneously, for guaranteeing that processing has the silk material of continuous tapering, the peripheral control device of the present invention by dip direction, speed, number of times are controlled can guarantee not consider factors such as power loss, mechanical friction in the process of lifting, realize pull rate dynamically at the uniform velocity.
The present invention has the following advantages: the end that is processed has the silk material of continuous or step taper, and mechanical property does not have considerable change, has original silk material or better surfaceness after the processing, and size control precision height, can be used as last manufacturing procedure.The result shows that the method for the invention can not only reach the effect of mechanical workout, and it is simple to operation to have equipment, and the characteristics that tooling cost is low are beneficial to and apply.
Description of drawings
Fig. 1 is the structural representation of pulling apparatus of the present invention, Fig. 2 is the structural representation of pulling apparatus in the embodiment two, Fig. 3 is the structural representation that embodiment four described a kind of ends have continuous tapering seal wire, and Fig. 4 is the structural representation that embodiment seven described a kind of ends have the step taper seal wire.
Embodiment
Embodiment one: as shown in Figure 1, the pulling apparatus of present embodiment is by motor 1, leading screw 2, lift locomotorium 3, to dip direction, speed, peripheral control device 4 that number of times is controlled and support 7 are formed, motor 1 is fixed on the upper end of support 7, the lower end of support 7 is fixed on the table top, the electrical input of motor 1 with to dip direction, speed, the output terminal of the peripheral control device 4 that number of times is controlled is communicated with, the output shaft of motor is connected with the upper end of leading screw 2, the lower end of leading screw 2 is fixed in the blind hole 9 of fixed body 8, lift locomotorium 3 by nut sleeve on leading screw 2.
Principle of work:, realize lifting motion by positive and negative the transferring of leading screw 2 with the locomotorium 3 that lifts of nut sleeve on leading screw by motor 1 rotating threaded shaft 2.Motor 1 is controlled by the peripheral reaction circuit in the peripheral control device 4 that dip direction, speed, number of times are controlled, can carry out at the uniform velocity or the control of speed change the speed that lifts, by the micro-chip control in the peripheral control device 4 that dip direction, speed, number of times are controlled, can control dip direction, number of times.
The described device of present embodiment is to can be used for the pulling apparatus that all can process silk material tapering by chemical corrosion.
Embodiment two: as shown in Figure 2, what present embodiment and embodiment one were different is, also need a corrosion processing liquid bath 6 in actual production process, the upper end that corrosion processing liquid bath 6 is arranged on processed silk material 5 is suspended on and lifts that its lower end, back can vertical immersion position in corrosion processing liquid bath 6 on the locomotorium 3.
Embodiment three: present embodiment is the nearly working method that waits atomic ratio Ni-Ti alloy seal wire that a kind of tapered distal end has specific dimensions, and it may further comprise the steps successively:
A, in 50-80 ℃ temperature range preparation certain density hydrofluoric acid (HF), nitric acid (HNO
3) and water (H
2O) mixing solutions, wherein the volume percent of hydrofluoric acid generally is no more than 20%, and the volume percent of nitric acid is generally between 20-50%, as corrosion processing solution.
B, as shown in Figure 2, it is power with the servomotor that the silk material is fixed on a kind of utilization, drive leading screw and cooperate with nut on the device of realizing lifting, realize immersion and the proposition of a material in corrosion processing solution by the peripheral control device that dip direction, speed, number of times are controlled.Utilize pulling apparatus under certain speed processed silk material being lifted certain number of times in corrosion processing solution, can obtain the continuous taper Ni-Ti alloy seal wire that far-end has specific dimensions.Temperature, concentration and hydrofluoric acid (HF) and nitric acid (HNO by control corrosion processing solution
3) volume percent and the speed and the number of times that lift, can process the continuous taper of required any distal dimension.In order to improve the surfaceness of processing back nitinol alloy wire material, generally adopt the number of times that lifts more than 5 times.
The described nitinol alloy wire material of present embodiment is generally the ultra-fine wire of diameter below 1mm.
Embodiment four: present embodiment be the processing length scope in 1500-3000mm, near-end size range at 0.36-0.6mm, the distal dimension scope is at the long nearly concrete processing parameter of atomic ratio nitinol alloy wire material that waits for 200mm of the continuous awl of 0.08-0.2mm: corrosion processing solution is that volume percent is HF: HNO
3: H
2O=1: 4: 5 mixing solutions, corrosion processing solution initial temperature is 50-80 ℃, and the pull rate scope is 0.15-0.3m/min, lifts 5-12 time, and guide wire is as shown in Figure 3.Other processing condition are identical with embodiment three.
Embodiment five: what present embodiment and embodiment four were different is, in order to hydrochloric acid and nitric acid be base, initial temperature at 50-80 ℃ mixing solutions as corrosion processing solution, at 0.36-0.6mm, the distal dimension scope is the superfine stainless steel silk material of 200mm in the continuous awl length of 0.08-0.2mm to the processing length scope in 1500-3000mm, near-end size range.
Embodiment six: present embodiment is the nearly working method that waits atomic ratio Ni-Ti alloy seal wire that a kind of distal portion has the specific dimensions frustum, and it may further comprise the steps successively:
A, preparation embodiment three described etchant solutions;
B, distal portion is immersed in certain hour in the corrosive fluid according to the length of required processing, obtains proposing to clean and coating protection glue behind the desired size;
C, according to the method for the continuous tapering of embodiment three described processing the nitinol alloy wire material is carried out the tapering processing of transition frustum part.
Embodiment seven: present embodiment is the processing length scope at 1500-3000mm, near-end size range at 0.36-0.6mm, the distal dimension scope concrete processing parameter at the atomic ratio nitinol alloy wire material such as near of 0.08-0.2mm, whole awl long 200mm, transition frustum 50mm: corrosion processing solution is that volume percent is HF: HNO
3: H
2O=1: 4: 5 mixing solutions; corrosion processing solution initial temperature is 50 ℃; at first silk material far-end is immersed etchant solution 150mm according to embodiment four; propose to clean back coating protection glue within a certain period of time after the corrosion processing distal portion, and then the silk material is immersed the frustum part of etchant solution according to the 50mm more than the embodiment one described method processing far-end 150mm.The pull rate scope lifts 5-12 time at 0.15-0.3m/min.Guide wire as shown in Figure 4.
Embodiment eight: what present embodiment and embodiment seven were different is, in order to hydrochloric acid and nitric acid be base, initial temperature at 50-80 ℃ mixing solutions as corrosion processing solution, the processing length scope at 1500-3000mm, near-end size range at 0.36-0.6mm, distal dimension scope superfine stainless steel silk material at 0.08-0.2mm, whole awl long 200mm, transition frustum 50mm.
Processing of the present invention end has continuously or step taper closely waits the pulling apparatus and the method for atomic ratio Ni-Ti alloy and Stainless Steel Wire material; also can be used for processing other all metal alloy materials and can be used for the seal wire that human body is implanted into, all within protection scope of the present invention.
Claims (10)
1, pulling apparatus, it is characterized in that described device comprises motor (1), leading screw (2), lift locomotorium (3), to dip direction, speed, peripheral control device (4) that number of times is controlled and support (7), motor (1) is fixed on the upper end of support (7), the lower end of support (7) is fixed on the table top, the input terminus of motor (1) with to dip direction, speed, the output terminal of the peripheral control device (4) that number of times is controlled is communicated with, the output shaft of motor (1) is connected with the upper end of leading screw (2), the lower end of leading screw (2) is fixed in the blind hole (9) of fixed body (8), lift locomotorium (3) by nut sleeve on leading screw (2).
2, pulling apparatus according to claim 1, it is characterized in that described device also comprises corrosion processing liquid bath (6), the upper end that corrosion processing liquid bath (6) is arranged on processed silk material (5) be suspended on lift locomotorium (3) go up its lower end, back can vertical immersion position in corrosion processing liquid bath (6).
3, the processing end has the method for continuous tapering alloy wire, it is characterized in that described method is: a, preparation are used to dissolve the corrosion processing solution of alloy, and the temperature of control corrosion processing solution is 50～80 ℃; B, the silk material is fixed on the described pulling apparatus of claim 1, realize immersion and the proposition of silk material in corrosion processing solution by the peripheral control device that dip direction, speed, number of times are controlled, the control pull rate is 0.15～03m/min, lift 5～12 times, must arrive the silk material that the end has certain tapering continuously.
4, processing according to claim 3 end has the method for continuous tapering alloy wire, it is characterized in that described silk material is nearly atomic ratio Ni-Ti alloy seal wire or the Stainless Steel Wire material of waiting.
5, processing according to claim 4 end has the method for continuous tapering alloy wire, it is characterized in that described silk material is when closely waiting atomic ratio Ni-Ti alloy seal wire, corrosion processing solution is the mixing solutions of hydrofluoric acid, nitric acid and water, wherein the volume percent of hydrofluoric acid is 10～20%, and the volume percent of nitric acid is 20～50%.
6, processing according to claim 4 end has the method for continuous tapering alloy wire, and when it is characterized in that described silk material is the Stainless Steel Wire material, corrosion processing solution is that volume ratio is that 50% hydrochloric acid and volume ratio are the mixing solutions that 13% nitric acid is formed.
7, the processing end has the method for step taper alloy wire, it is characterized in that described method is: a, preparation are used to dissolve the corrosion processing solution of alloy, and the temperature of control corrosion processing solution is 50～80 ℃; B, the silk material is fixed on the described pulling apparatus of claim 1; step taper size according to required processing is immersed in corrosion processing solution certain hour with the silk material; after obtaining desired size; with the processed part of protection glue coating; then by lifting the tapering of corrosion processing transition shoulder part; can obtain the step taper of certain size, the control pull rate is 0.15～0.3m/min, lifts 5～12 times.
8, processing according to claim 7 end has the method for step taper alloy wire, it is characterized in that described silk material is nearly atomic ratio Ni-Ti alloy seal wire or the Stainless Steel Wire material of waiting.
9, processing according to claim 8 end has the method for step taper alloy wire, it is characterized in that described silk material is when closely waiting atomic ratio Ni-Ti alloy seal wire, corrosion processing solution is the mixing solutions of hydrofluoric acid, nitric acid and water, wherein the volume percent of hydrofluoric acid is 10～20%, and the volume percent of nitric acid is 20～50%.
10, processing according to claim 8 end has the method for step taper alloy wire, and when it is characterized in that described silk material is the Stainless Steel Wire material, corrosion processing solution is that volume ratio is that 50% hydrochloric acid and volume ratio are the mixing solutions that 13% nitric acid is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100104557A CN100441743C (en) | 2006-08-29 | 2006-08-29 | Lifting device and method for processing alloy wire with continuous or step taper at end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100104557A CN100441743C (en) | 2006-08-29 | 2006-08-29 | Lifting device and method for processing alloy wire with continuous or step taper at end |
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| Publication Number | Publication Date |
|---|---|
| CN1912185A true CN1912185A (en) | 2007-02-14 |
| CN100441743C CN100441743C (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100104557A Expired - Fee Related CN100441743C (en) | 2006-08-29 | 2006-08-29 | Lifting device and method for processing alloy wire with continuous or step taper at end |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443802A (en) * | 2011-12-16 | 2012-05-09 | 西安西工大超晶科技发展有限责任公司 | Chemical milling liquid and chemical milling method for titanium and titanium alloy thin-wall components |
| CN102743233A (en) * | 2012-07-24 | 2012-10-24 | 哈尔滨工程大学 | Ultra-fine grained nickel-titanium alloy root canal file and preparation method thereof |
| CN109706515A (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 preparation facilities and preparation method of the tungsten wire needle point of controllable draw ratio |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85203744U (en) * | 1985-08-31 | 1986-11-12 | 李福全 | Numberical controlled machine special for corrosion processing of die |
| CN2112206U (en) * | 1991-11-26 | 1992-08-05 | 复旦大学 | Monitor controlling vacuum al membran etching apparatus |
| EP0750005B1 (en) * | 1994-12-27 | 2001-10-04 | Toyo Metallizing Co.,Ltd. | Polyester film for leader tape and process for producing the film |
| JP3190623B2 (en) * | 1998-05-13 | 2001-07-23 | セイコーインスツルメンツ株式会社 | How to sharpen the probe |
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- 2006-08-29 CN CNB2006100104557A patent/CN100441743C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443802A (en) * | 2011-12-16 | 2012-05-09 | 西安西工大超晶科技发展有限责任公司 | Chemical milling liquid and chemical milling method for titanium and titanium alloy thin-wall components |
| CN102743233A (en) * | 2012-07-24 | 2012-10-24 | 哈尔滨工程大学 | Ultra-fine grained nickel-titanium alloy root canal file and preparation method thereof |
| CN109706515A (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 preparation facilities and preparation method of the tungsten wire needle point of controllable draw ratio |
| CN109706515B (en) * | 2019-01-11 | 2020-02-28 | 中国电子科技集团公司第三十八研究所 | Preparation device and preparation method of tungsten filament needle tip with controllable length-diameter ratio |
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| CN100441743C (en) | 2008-12-10 |
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Granted publication date: 20081210 Termination date: 20110829 |