Preparation method for porous copper-based shape memory alloy-based damping composite material

A technology of damping composite material and memory alloy, which is applied in the field of damping material manufacturing, can solve problems such as deteriorating the mechanical properties of materials, and achieve the effect of good contact and improved contact.
CN102808101AActive Publication Date: 2012-12-05HEBEI UNIV OF TECH
3 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2012-12-05

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a preparation method for a porous copper-based shape memory alloy-based damping composite material and relates to preparation of damping materials. The method comprises the following steps of: performing thermal circulation and ultrasonic cleaning on a quenching-state porous CuAlMn shape memory alloy sample to remove stains adhered to the outer surface of the sample and the inner surfaces of pores; immersing the sample in a polystyrene-2-methyltetrahydrofuran solution, and performing ultrasonic oscillation until the polystyrene-2-methyltetrahydrofuran solution is fully permeated into the pores of the porous CuAlMn shape memory alloy sample, which are communicated in a three-dimensional way; and finally drying until the 2-methyltetrahydrofuran solvent is volatilized completely to prepare a porous copper-based shape memory alloy-based damping composite material finished product, wherein polystyrene layers are deposited in the pores of the porous CuAlMn shape memory alloy. The finished product is high and controllable in damping property, and overcomes the defect that the stress concentration or microcracks are easily generated on edges of pore walls under the external load in the conventional CuAlMn shape memory alloy.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The technical solution of the invention relates to the manufacture of damping materials, in particular to the preparation method of porous copper-based shape memory alloy-based damping composite materials. Background technique

[0002] Vibration and noise not only damage the environment and human health, but also affect the quality of machinery, shorten the life of equipment, and reduce the accuracy and reliability of instruments. Therefore, vibration reduction and noise reduction, improvement of human-machine working environment, and design and production of products with low vibration and noise have become problems to be solved urgently. Studies have shown that the use of high damping materials is the most effective means of reducing vibration and noise.

[0003] At present, damping materials with practical prospects can be mainly divided into two categories, one is damping metal materials, and the other is viscoelastic polymer materials. Although ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More