Continuous processing method of nickel-titanium shape memory alloy square thin wire material

A memory alloy, nickel-titanium alloy technology, applied in metal processing equipment, metal wire drawing, metal extrusion, etc., can solve the problems of large size fluctuations, poor surface quality, and small weight of a single plate in the roller drawing method, and achieve a smooth and uniform surface Consistent, improved internal tissue performance, uniform and regular cross-sectional size

Active Publication Date: 2020-06-30
宝鸡华沃新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, provide a kind of continuous processing method of nickel-titanium shape memory alloy square thin wire material, overcome 1 in the prior art: Die-drawing method has the difficulty of making molds and the lack of sharp corners. Full, easy to scratch the surface, small mold deformation rate and total deformation rate, and long production cycle; 2: The roll drawing method has the problem of large dimensional fluctuations during processing; 3: Low strength, poor dimensional tolerance and surface quality, Problems such as small weight of a single plate and low production efficiency

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  • Continuous processing method of nickel-titanium shape memory alloy square thin wire material

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specific Embodiment approach

[0027] 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. .

[0028] 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

[0030] The invention discloses a method for continuously processing nickel-titanium shape memory alloy square thin wires, which comprises the following steps:

[0031] Step 1) surface-treating the Ф3mm nickel-titanium alloy thin round wire billet;

[0032] Step 2) performing square hot die drawing and hot roller drawing on the nickel-titanium alloy fine round wire blank after surface treatment in step 1), to obtain the nickel-titanium alloy square thin wire material;

[0033] Step 3) Perform square cold die drawing and online straightening heat treatment on the nickel-titanium alloy square thin wire in step 2), to obtain the nickel-titanium shape memory alloy square thin wire.

Embodiment 2

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

[0036] Step 1) surface-treating the Ф3mm nickel-titanium alloy thin round wire billet;

[0037] Step 2) performing square hot die drawing and hot roller drawing on the nickel-titanium alloy fine round wire blank after surface treatment in step 1), to obtain the nickel-titanium alloy square thin wire material;

[0038] Step 3) Perform square cold die drawing and online straightening heat treatment on the nickel-titanium alloy square thin wire in step 2), to obtain the nickel-titanium shape memory alloy square thin wire.

[0039]Preferably, the surface treatment in the step 1) is to clean and dry the Ф3mm nickel-titanium alloy thin round wire billet after hot drawing in the early stage, check and grind to remove cracks, folds, and burrs, and then coat the surface with graphite Emulsion lubricant, then fully dried at 100°...

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Abstract

The invention discloses a continuous processing method of a nickel-titanium shape memory alloy square thin wire material. The continuous processing method of the nickel-titanium shape memory alloy square thin wire material comprises the following steps of: step 1) performing surface treatment on a [Phi]3 mm nickel-titanium alloy thin round wire blank; step 2) performing square hot die drawing andhot roller drawing on the nickel-titanium alloy thin round wire blank after surface treatment in step 1) to obtain a nickel-titanium alloy square thin wire material; and step 3) performing square colddie drawing and online straightening heat treatment on the nickel-titanium alloy square thin wire material in step 2) to obtain the nickel-titanium shape memory alloy square thin wire material. The nickel-titanium shape memory alloy square thin wire material obtained by the invention has high strength, good dimensional tolerance and surface quality, large single plate heavy, and high production efficiency, which completely meets the requirements of the nickel-titanium shape memory alloy wire material for medical use, has high production efficiency, and is easy to realize large-scale production.

Description

technical field [0001] The invention belongs to the technical field of alloy wire processing, and in particular relates to a continuous processing method for nickel-titanium shape memory alloy square thin 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. For orthodontics, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C1/04B21C19/00B21C43/02
CPCB21C1/04B21C19/00B21C43/02
Inventor 牛中杰梁振伟梁园园
Owner 宝鸡华沃新材料有限公司
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