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Memory alloy wire and fiber mixed weaving process

A technology of memory alloy wire and alloy wire, which is applied in braids, metal layered products, textiles and papermaking, etc., can solve the problem of light weight, intelligent service, material reduction, rigidity and other inherent characteristics that cannot meet working conditions and performance Failure to meet requirements, etc.

Pending Publication Date: 2022-08-05
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, many composite materials used for environmental protection and weight reduction are not up to the requirements in many properties, such as inherent characteristics such as stiffness and strength, which cannot meet the requirements of working conditions, so that the materials that can serve lightweight and intelligent services will be reduced.

Method used

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  • Memory alloy wire and fiber mixed weaving process
  • Memory alloy wire and fiber mixed weaving process
  • Memory alloy wire and fiber mixed weaving process

Examples

Experimental program
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Effect test

example 1

[0039] The selected nickel-titanium shape memory alloy wire 1 has a titanium content of 49.6-56%, the fibers are basalt fiber 2 and Kevlar fiber 3, the thermosetting resin is epoxy resin, and a three-dimensional braiding machine is used in an environment below the phase transition temperature. , choose the layer-by-layer orthogonal method, as shown in the figure, weave the shape of a rectangular parallelepiped.

[0040] Shape memory alloy wire Alloy wire 1 is woven with warp / weft yarn. In order to avoid the neutral layer of the fabric, the shape memory alloy wire is arranged on the surface layer of the fabric, and Kevlar fiber 3 is mainly woven as a knot yarn. In the process of doubling the alloy wire, a doubling machine can be used to wind the alloy wire on the spindle. During the winding process, a certain number of pulleys can be used to provide sufficient tension on the shape memory alloy wire.

[0041] When threading, the bending of the alloy wire should be avoided as muc...

example 2

[0048] The nickel-titanium shape memory alloy wire 1 with a diameter of 0.4 mm is used, the carbon fiber 4 is used for the fiber, and the epoxy resin is used for the thermosetting resin.

[0049] A number of shape memory alloy wires are inserted into the braiding machine, and the shape memory alloy wires are evenly arranged on the spindles of the annular radial braiding machine to be braided into the shape of a round tube. A mandrel is inserted into the fabric to hold the shape of the tube, and a layer of wax is applied to the tube so that it can be easily removed after curing.

[0050] Since the friction force of alloy wire is greater than that of fiber, in order to make alloy wire better woven into the spindle, the speed of the spindle should be fast and slow to ensure that the alloy wire does not damage the structure of the fiber. If necessary, the start and stop of the machine can be adjusted manually.

[0051] The braided braided fabric is put into a vacuum bag to be evac...

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Abstract

The invention relates to the field of composite material weaving, in particular to a memory alloy wire and fiber mixed weaving process, shape memory alloy wires and fibers are woven, thermosetting is conducted through resin, and after the method is adopted, the rigidity of a material can be changed, the weight of an original structure can be reduced, and the material is made to be intelligent.

Description

technical field [0001] The invention relates to the field of composite material weaving, in particular to a mixed weaving process of memory alloy wires and fibers. Background technique [0002] In order to keep up with the era of lightweight, intelligence and environmental protection, more and more fields have invented more lighter and more intelligent materials, and the manufacture of lightweight and intelligent new materials has always been an important research hotspot in recent years. . Composite materials have unique advantages in light weight, and smart materials are defined as materials that can actively change themselves according to external stimuli, and its goal is the integration of sensing, control and actuation. The new intelligent composite material designed by combining the two can combine the advantages of the two and has a broad application scenario. [0003] At present, many composite materials used for green environmental protection and weight reduction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04C1/02B32B9/00B32B9/04B32B9/02B32B15/02B32B15/14B32B17/12B32B17/00
CPCD04C1/02B32B5/08B32B17/067B32B17/00B32B2262/103B32B2262/101B32B2262/062B32B2262/065B32B2262/10B32B2262/106
Inventor 柯俊刘利杰
Owner ZHEJIANG SCI-TECH UNIV
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