Processing method of nickel-titanium shape memory alloy high-strength wire material

A nickel-titanium alloy and memory alloy technology, applied in metal processing equipment, metal extrusion, manufacturing tools, etc., can solve the problems of low strength, large residual strain, poor comprehensive performance, etc., and achieve high production efficiency, small residual strain, Good super elastic effect

Active Publication Date: 2020-06-30
西安华创新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to overcome above-mentioned deficiencies in the prior art, provide a kind of nickel-titanium shape memory alloy high-strength wire material processing method, overcome 1 in the prior art: the processing method of hot drawing of fixed mold is nickel-titanium alloy under high temperature The surface of the wire material is seriously polluted, and repeated heating causes poor overall performance, low strength, and poor toughness; 2: The processing method of fixed die cold drawing has serious work hardening of nickel-titanium alloy materials. In order to prevent wire breakage, repeated heating and annealing is required. The secondary production efficiency is low, and the residual strain is large; 3: The existing technology does not have the technical inspiration of combining the two processing methods and the specific operation method.

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  • Processing method of nickel-titanium shape memory alloy high-strength wire material

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specific Embodiment approach

[0032] It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not used to limit the conditions for the implementation of the present invention , any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope covered by the technical content disclosed in the present invention without affecting the effect and purpose of the present invention. .

[0033] At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without...

Embodiment 1

[0035] The invention discloses a method for processing nickel-titanium shape memory alloy high-strength wire, which comprises the following steps:

[0036] Step 1) Thick nickel-titanium alloy wire is obtained by peeling the nickel-titanium alloy wire billet;

[0037] Step 2) hot-drawing the nickel-titanium alloy thick wire in step 1) to obtain the nickel-titanium alloy medium thick wire;

[0038] Step 3) performing high-temperature annealing and water quenching on the thick wire in the nickel-titanium alloy in step 2);

[0039] Step 4) performing cold drawing and on-line annealing treatment on the nickel-titanium alloy medium-thick wire after high-temperature annealing and water quenching in step 3), to obtain the nickel-titanium alloy thin wire;

[0040] Step 5) performing on-line aging treatment and peeling treatment on the nickel-titanium alloy fine wire in step 4), to obtain high-strength nickel-titanium shape memory alloy wire.

Embodiment 2

[0042] The invention discloses a method for processing nickel-titanium shape memory alloy high-strength wire, which comprises the following steps:

[0043]Step 1) Thick nickel-titanium alloy wire is obtained by peeling the nickel-titanium alloy wire billet;

[0044] Step 2) hot-drawing the nickel-titanium alloy thick wire in step 1) to obtain the nickel-titanium alloy medium thick wire;

[0045] Step 3) performing high-temperature annealing and water quenching on the thick wire in the nickel-titanium alloy in step 2);

[0046] Step 4) performing cold drawing and on-line annealing treatment on the nickel-titanium alloy medium-thick wire after high-temperature annealing and water quenching in step 3), to obtain the nickel-titanium alloy thin wire;

[0047] Step 5) performing on-line aging treatment and peeling treatment on the nickel-titanium alloy fine wire in step 4), to obtain high-strength nickel-titanium shape memory alloy wire.

[0048] Preferably, the peeling treatment ...

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Abstract

The invention discloses a processing method of a nickel-titanium shape memory alloy high-strength wire material. The processing method comprises the following steps that (1), a nickel-titanium alloy wire blank is subjected to peeling treatment, and the nickel-titanium alloy thick wire material is obtained; (2), the nickel-titanium alloy thick wire material in the first step is subjected to hot drawing, and the thick wire material in the nickel-titanium alloy is obtained; and (3), high-temperature annealing and water quenching are carried out on the thick wire material in the nickel-titanium alloy in the second step; (4), cold drawing and on-line annealing treatment are carried out on the thick wire material in the high-temperature annealed and water-quenched nickel-titanium alloy obtainedin the third step, and the nickel-titanium alloy fine wire material is obtained; and (5), on-line aging treatment and peeling treatment are carried out on the nickel-titanium alloy fine wire materialobtained in the fourth step, and the nickel-titanium shape memory alloy high-strength wire material is obtained.

Description

technical field [0001] The invention belongs to the technical field of alloy wire processing, in particular to a method for processing nickel-titanium shape memory alloy high-strength wire. Background technique [0002] Nickel-titanium shape memory alloy is an intermetallic compound with nearly equal atomic ratio. The alloy has different crystal structures at different temperatures. The high-temperature phase is a body-centered cubic structure with high hardness and rigidity; the low-temperature martensite is monoclinic Structure, low hardness, and the alloy undergoes martensite and austenite phase transformation with temperature changes. The high-temperature phase of nickel-titanium alloy has excellent wear resistance and corrosion resistance, and the low-temperature phase has excellent damping properties. It has a unique shape memory effect and superelasticity in the phase transition region, and also has excellent biocompatibility. It is a kind of Ideal medical biomateria...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04B21C1/04B21C43/04C22F1/10
CPCB21C1/04B21C37/045B21C37/047B21C43/04C22F1/002C22F1/006C22F1/10
Inventor 牛中杰梁振伟梁园园
Owner 西安华创新材料有限公司
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