A copper-iron alloy wire

Abstract

This utility model discloses a copper-iron alloy wire, comprising an alloy wire and a shape memory metal wire. The alloy wire is processed into a helical spring shape, and a shape memory metal wire is fixedly disposed on the side of the alloy wire along its extension direction. The shape memory metal wire is also helical spring shaped. Both the alloy wire and the shape memory metal wire are coated with an epoxy resin coating. This utility model processes both the alloy wire and the shape memory metal wire into helical spring shapes and installs the shape memory metal wire on the alloy wire. Due to its structural characteristics, the alloy wire itself has a certain degree of elasticity. Combined with the presence of the shape memory metal wire, the shape recovery effect is greatly guaranteed, making it more suitable for use in industrial robots.

Description

Technical Field

[0001] This utility model relates to the technical field of bonding wires, and in particular to a copper-iron alloy wire. Background Technology

[0002] The main components of copper-iron alloy wire are copper (Cu) and iron (Fe). Depending on performance requirements, it may also contain other trace elements. The specific composition is as follows: Copper: As one of the main components of the alloy, it has good electrical and thermal conductivity and ductility. The copper content in copper-iron alloy wire is usually high, generally around 60%-90%. Iron: Another major component, it improves the alloy's strength, hardness, and wear resistance. The iron content is generally around 10%-40%. By adjusting the iron content, the alloy's performance can be controlled to meet the needs of different applications. Other trace elements: To further improve the alloy's performance, other trace elements may be added, such as phosphorus (P), tin (Sn), and zinc (Zn).

[0003] Industrial robot joint connectors are designed to adapt to multi-angle joint movements and frequent bending. While copper-iron alloy wires have sufficient mechanical strength, their inability to regain their original shape when used as joint connectors for industrial robots necessitates further improvements. Utility Model Content

[0004] The purpose of this invention is to provide a copper-iron alloy wire that solves the problem that current copper-iron alloy wires cannot restore their shape.

[0005] According to one aspect of this disclosure, the following technical solution is provided: a copper-iron alloy wire, comprising an alloy wire and a shape memory metal wire, wherein the alloy wire is processed into a spiral spring shape, and a shape memory metal wire is fixedly disposed on the side of the alloy wire along the extension direction, the shape memory metal wire being in a spiral spring shape.

[0006] Furthermore, the surfaces of the alloy wire and the shape memory metal wire are coated with an epoxy resin coating.

[0007] The technical effects and advantages of this utility model are as follows:

[0008] This invention processes both alloy wire and shape memory metal wire into a spiral spring shape, and installs the shape memory metal wire on the alloy wire. Due to its structural characteristics, the alloy wire itself has a certain degree of elasticity. With the presence of the shape memory metal wire, the shape recovery effect is greatly guaranteed, making it more suitable for use in industrial robots. Attached Figure Description

[0009] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0010] Figure 1 This is a schematic diagram of a copper-iron alloy wire according to one embodiment of the present disclosure.

[0011] The specific labels in the attached figures are as follows:

[0012] Alloy wire-1, shape memory metal wire-2. Detailed Implementation Example 1

[0013] As shown in the attached figure, the present disclosure discloses a copper-iron alloy wire, including an alloy wire 1 and a shape memory metal wire 2. The alloy wire 1 is processed into a spiral spring shape, and the shape memory metal wire 2 is fixedly disposed on the side of the alloy wire 1 along the extension direction. The shape memory metal wire 2 is spiral spring shaped, and the surfaces of the alloy wire 1 and the shape memory metal wire 2 are coated with an epoxy resin coating.

[0014] The production process of this copper-iron alloy wire mainly includes steps such as spiral forming of copper-iron alloy wire, preparation of shape memory alloy wire, embedding and fixing, heat treatment and shaping, and quality inspection. The details are as follows:

[0015] 1. Alloy wire spiral forming

[0016] Material selection: Select copper-iron alloy wire with appropriate composition based on the required electrical and mechanical properties, and determine its diameter, length and other specifications.

[0017] Winding: High-precision winding equipment is used to wind copper-iron alloy wire into a helical spring shape. Parameters such as the winding pitch, diameter, and number of turns are controlled to achieve the designed helical structure dimensions and elastic properties. For example, for helical wires used in industrial robot joint connection lines, the pitch and number of turns must be precisely adjusted according to the joint's range of motion and stress conditions to ensure the helical wire functions correctly at different bending angles.

[0018] 2. Preparation of shape memory alloy wire

[0019] Material selection: Choose shape memory alloy wires with suitable shape memory effect and mechanical properties, such as nickel-titanium alloy wires. Determine the diameter and length of the alloy wire based on the size and performance requirements of the helix.

[0020] Pretreatment: The shape memory alloy wire is straightened and cleaned to remove surface impurities and stress, ensuring the consistency and stability of its performance.

[0021] 3. Embedding and fixing of shape memory alloy wires

[0022] Embedding: Using precision winding equipment, pre-treated shape memory alloy wires are evenly embedded into the gaps between alloy wires. During the embedding process, the tension and position of the alloy wires must be carefully controlled to ensure that they fit tightly against the helix and do not shift or fall off during the expansion and contraction of the helix.

[0023] Fixing: Special fixing processes, such as spot welding, adhesive bonding, or mechanical clamping, are used to fix the two ends of the shape memory alloy wire to the copper-iron alloy helix. For spot welding, welding parameters must be carefully controlled to avoid overheating that could degrade the alloy wire's performance; for adhesive bonding, a suitable adhesive must be selected to ensure good adhesion under different environmental conditions.

[0024] 4. Heat treatment for shaping

[0025] Heating: The copper-iron alloy spiral wire with embedded shape memory alloy wire is placed in a heating furnace and heated according to the predetermined heat treatment process. The heating temperature and holding time are precisely controlled according to the alloy composition and performance requirements. Generally, the heating temperature is between 400 and 600℃, and the holding time is 1 to 2 hours.

[0026] Cooling: After heating, rapid or slow cooling is used to give the alloy wire the desired microstructure and properties. Rapid cooling (such as water quenching) can improve the shape memory effect and hardness of the shape memory alloy, while slow cooling (such as air cooling) helps to reduce internal stress and improve toughness.

[0027] 5. Quality Inspection

[0028] Visual inspection: Check the surface of the alloy wire for defects such as cracks, bubbles, scratches, etc., by visual inspection or microscopic observation, and check whether the embedding of the shape memory alloy wire is uniform and whether it is firmly fixed.

[0029] Dimensional accuracy measurement: Use measuring tools such as calipers and micrometers to measure parameters such as the diameter, pitch, length of the helix, and the position and spacing of the shape memory alloy wires to ensure that they meet the accuracy range required by the design.

[0030] Performance testing: The alloy wire undergoes tensile, compressive, and bending mechanical property tests, as well as shape memory effect tests, to verify whether it meets the requirements for self-regulating expansion and contraction performance under different temperature and external force conditions. For example, by simulating temperature changes and mechanical motion in real-world application scenarios, the expansion and contraction response speed, expansion and contraction amount, and recovery accuracy of the alloy wire are tested.

[0031] 6. Surface treatment

[0032] Depending on the specific application requirements, the self-adjusting spiral telescopic copper-iron alloy wire undergoes surface treatments such as tin plating, zinc plating, or coating with insulating varnish to improve its corrosion resistance, abrasion resistance, and insulation properties. For example, alloy wires used in marine environments can employ surface treatment processes with better corrosion resistance, such as nickel plating or silver plating.

[0033] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A copper-iron alloy wire, characterized by, The alloy wire is processed into a spiral spring shape, and the memory metal wire is fixedly arranged on the side surface of the alloy wire along the extending direction.

2. A copper-iron alloy wire according to claim 1, characterized in that: The alloy wire and the memory metal wire are coated with an epoxy resin coating.

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