Medical zinc alloy wire and its preparation method and application
A zinc alloy and wire material technology, applied in the field of medical metal materials, can solve the problems of mechanical properties, corrosion resistance, alloy anisotropy and composition segregation, and uneven structure of alloy materials, so as to improve efficiency, cost, and structure Homogeneous structure and distribution, short treatment and holding times
Active Publication Date: 2021-12-03
苏州晶俊新材料科技有限公司
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Problems solved by technology
[0004] On the other hand, the preparation of zinc alloy wire mentioned in the prior art mainly adopts the conventional unidirectional drawing method, which will cause significant anisotropy and composition segregation inside the alloy
The high degree of anisotropy and compositional segregation will lead to uneven structure inside the prepared alloy material, and the detected performance such as mechanical properties and corrosion resistance will be greatly affected, which will have a great impact on the future. The clinical application of medicine will also bring many inconveniences and restrictions, and there is even no way to successfully apply it to real life
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[0032] Such as figure 1 As shown, one aspect of the present invention provides a method for preparing a medical zinc alloy wire S100, which specifically includes the following steps S110-S130:
[0033] S110. Melting each alloy component, pouring and cooling to obtain a zinc alloy ingot.
[0034] Specifically, the required metal raw materials (such as Zn, Li, Mn, Cu) are weighed according to the mass percentage of the alloy composition for smelting. First, the pure zinc is heated to a temperature range of 420°C to 470°C until the pure zinc is completely melted After that, a protective atmosphere was introduced and the temperature was raised to 580°C-620°C; after that, other metal raw materials were added, stirred evenly, and left to stand for 20-40 minutes. After the metal was completely melted, stirred and stood for 8-12 minutes, and the temperature dropped Cast at 480°C to 520°C, and air cool to room temperature to obtain zinc alloy ingots.
[0035] It should be noted that ...
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Abstract
The invention provides a medical zinc alloy wire material and its preparation method and application, belonging to the technical field of medical metal materials. Among them, the preparation method of medical zinc alloy wire specifically includes: melting each alloy component, and obtaining a zinc alloy ingot after casting and cooling; homogenizing the zinc alloy ingot and then hot extrusion to obtain a zinc alloy Rods: multi-pass reciprocating drawing and graded annealing are performed on the zinc alloy rods to obtain the medical zinc alloy wires. The present invention adopts reciprocating drawing, which is a new drawing method, and utilizes reciprocating drawing processing in two directions, and cooperates with an appropriate amount of deformation, so that the material is subjected to axial forces in two different directions in a short period of time during the drawing process. , the two will partially offset, which can greatly weaken the severe anisotropy and composition segregation produced in the unidirectional drawing process, thereby improving the internal structure, mechanical properties and corrosion properties of the alloy material.
Description
technical field [0001] The invention belongs to the technical field of medical metal materials, and in particular relates to a medical zinc alloy wire, a preparation method of the medical zinc alloy wire and an application of the medical zinc alloy wire. Background technique [0002] Nowadays, the wire materials being used in the biomedical field are mainly titanium alloys, cobalt-nickel alloys, and shape memory alloys. However, the above three materials have corresponding problems, such as: titanium alloys have poor wear resistance, and the surface After the oxide film is destroyed, the wear particle products will cause great harm to the human body. In contrast, although the corrosion resistance and wear resistance of cobalt-nickel alloys are very good, the loosening rate of medical materials prepared by cobalt-nickel alloys is high, and the precipitated Co and Ni elements have serious sensitization risks. problem, and the price of cobalt-nickel alloy is higher. However, ...
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IPC IPC(8): C22C18/02C22C1/02C22F1/16
CPCC22C1/02C22C18/02C22F1/16
Inventor 白晶王子昕程兆俊邵怡
Owner 苏州晶俊新材料科技有限公司