Straightness test device and test method for superelastic nickel-titanium alloy wire
A nickel-titanium alloy and testing device technology, applied in the direction of angle/taper measurement, can solve the problems of high finished product and human factors, and achieve the effect of convenient and fast operation, high accuracy and low cost
Active Publication Date: 2019-01-25
江阴佩尔科技有限公司
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Problems solved by technology
Although the methods used in the industry such as the ruler method, optical alignment method, and gravity method can be used for judgment, most of them are affected by human factors and have defects such as higher finished products.
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[0012] see figure 1 , the present invention relates to a straightness testing device for a superelastic nickel-titanium alloy wire, comprising a platform 1, a conductive plate 2 is placed horizontally above the platform 1, and the conductive plate 2 is used to place the nickel-titanium alloy to be tested Wire material, above the platform 1, open a hole on one side of the front end of the conductive plate 2 and place a vernier caliper 3 vertically, the bottom of the vernier caliper 3 passes through the opening of the platform 1, so that an outer measuring claw of the vernier caliper is stuck on the bottom of the platform 1 , another outer measuring claw 4 is arranged on the top of the platform 1, there is a gap between the outer measuring claw 4 above the platform 1 and the platform 1, the height of the gap is used to detect the straightness of the wire, and the outer measuring claw 4 A sensor is installed on it, an electric control box 7 is placed under the platform 1, an alar...
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The invention relates to a straightness testing device of super elastic nickel titanium alloy wires and a testing method of the straightness testing device. The straightness testing device of the super elastic nickel titanium alloy wires is characterized in that the straightness testing device comprises a platform (1); an electric conduction plate (2) is horizontally arranged on the platform (1); a hole which is located at one side of the front end of the electric conduction plate (2) is formed in the platform (1); a vernier caliper (3) is vertically arranged in the hole; a gap is left between an outer measurement claw (4) above the platform (1) and the platform (1); the outer measurement claw (4) is provided with a sensor; an electric control box (7) is arranged at the lower part of the platform (1); and an alarm is installed in the electric control box (7). With the straightness testing device of the super elastic nickel titanium alloy wires and the testing method of the straightness testing device adopted, when the straightness of the super elastic nickel titanium alloy wires is tested, testing is not affected by human-made factors. The straightness testing device of the super elastic nickel titanium alloy wires and the testing method have the advantages of convenient operation, low cost and high-accuracy test results.
Description
technical field [0001] The invention relates to a straightness testing device and a testing method thereof, which are used for testing the straightness of superelastic nickel-titanium alloy wires and other superelastic wires. Background technique [0002] Vascular stents, an endovascular interventional therapy for human vascular diseases, have been affirmed by doctors and patients for their small trauma, high safety and high effectiveness, and have become one of the important treatment methods for vascular diseases. Current vascular stents are usually made of stainless steel, cobalt-chromium alloy, superelastic nickel-titanium alloy or polymer materials. The imaging performance of vascular stents under X-ray machines or other medical imaging equipment plays a vital role in the clinical effect both during and after the operation. [0003] Among them, the nickel-titanium alloy stent is made of wire, and the straightness of nickel-titanium shape memory alloy wire and other sup...
Claims
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IPC IPC(8): G01B5/25
CPCG01B5/25
Inventor 徐敏黄陈兵
Owner 江阴佩尔科技有限公司