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Lifting device and method for processing alloy wire with continuous or step taper at end

A pulling device and alloy wire technology are applied in the field of mechanical pulling device and processing ultra-fine metal alloy wire, which can solve the problems of surface work hardening, expensive equipment and high processing cost, achieve low processing cost and facilitate popularization The effect of high precision of application and dimensional control

Inactive Publication Date: 2007-02-14
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of expensive equipment, high processing cost, and work hardening on the surface after processing in the traditional guide wire processing method, the present invention provides a lifting device and an alloy wire with continuous or stepped taper at the processing end. method

Method used

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  • Lifting device and method for processing alloy wire with continuous or step taper at end
  • Lifting device and method for processing alloy wire with continuous or step taper at end
  • Lifting device and method for processing alloy wire with continuous or step taper at end

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specific Embodiment approach 1

[0012] Specific implementation manner one: such as figure 1 As shown, the lifting device of this embodiment is composed of a motor 1, a lead screw 2, a lifting motion device 3, a peripheral control device 4 that controls the direction, speed, and number of lifting, and a bracket 7. The motor 1 is fixed on the bracket 7. The upper end of the bracket 7 is fixed on the table, the electrical input end of the motor 1 is connected to the output end of the peripheral control device 4 that controls the pulling direction, speed, and times. The output shaft of the motor is connected to the upper end of the screw 2. , The lower end of the lead screw 2 is fixed in the blind hole 9 of the fixed body 8, and the lifting motion device 3 is sleeved on the lead screw 2 through a nut.

[0013] Working principle: The screw 2 is rotated by the motor 1, and the lifting motion device 3, which is sleeved on the screw with a nut, realizes the lifting movement through the forward and reverse rotation of t...

specific Embodiment approach 2

[0015] Second embodiment: As shown in Figure 2, the difference between this embodiment and the first embodiment is that in the actual production process, an etching processing fluid tank 6 is also required, and the etching processing fluid tank 6 is set on the wire 5 to be processed. The upper end is suspended on the lifting motion device 3 and the lower end can be vertically immersed in the corrosion processing liquid tank 6.

specific Embodiment approach 3

[0016] Specific embodiment 3: This embodiment is a method for processing a near-equal atomic ratio nickel-titanium alloy guide wire with a specific size at the tapered distal end, which sequentially includes the following steps:

[0017] a. Prepare a certain concentration of hydrofluoric acid (HF), nitric acid (HNO) in the temperature range of 50-80℃ 3 ) And water (H 2 O) The mixed solution, in which the volume percentage of hydrofluoric acid is generally not more than 20%, and the volume percentage of nitric acid is generally between 20-50%, which is used as a corrosion processing solution.

[0018] b. As shown in Figure 2, fix the wire on a device that uses a servo motor as the power to drive the screw and nut to achieve pulling, and through the peripheral control that controls the pulling direction, speed, and times The device is used to realize the immersion and extraction of the wire in the corrosion processing solution. By using the pulling device to pull the processed wire ...

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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 [0001] The invention relates to a mechanical pulling device and a method for processing ultrafine metal alloy wires by using the same. Background technique [0002] Minimally invasive (or intravascular) interventional treatment technology refers to the diagnosis and treatment operations using puncture nails, guide wires, catheters and stents under the guidance of imaging equipment. This technique is a minimally invasive interventional treatment, no surgery is required, only local anesthesia is required, and it has the advantages of less bleeding, less trauma, less complications, safety and reliability, and quick postoperative recovery. As one of the interventional instruments, the guide wire has the function of percutaneously introducing the catheter into the blood vessel or other lumen of the body, and is an important tool to assist the catheter to selectively enter the small blood vessel branch or other diseased cavities and to replace the catheter during operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/08
Inventor 郑玉峰李莉方昊
Owner HARBIN ENG UNIV
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