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Nickel titanium memory alloy/polyurethane compound damping panel and preparation method thereof

A nickel-titanium memory alloy and composite damping technology, applied in chemical instruments and methods, sound-producing instruments, instruments, etc., can solve the problems of poor damping effect, poor corrosion resistance, low tensile strength, etc., and achieve low cost and corrosion resistance. Good, wear-resistant and corrosion-resistant properties

Inactive Publication Date: 2013-01-30
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problems of the existing clad steel plate with 316L stainless steel on the surface, which has low tensile strength and poor corrosion resistance, and the existing clad damping material has poor damping effect, and provides a nickel-titanium Memory alloy / polyurethane composite damping plate and its preparation method

Method used

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  • Nickel titanium memory alloy/polyurethane compound damping panel and preparation method thereof
  • Nickel titanium memory alloy/polyurethane compound damping panel and preparation method thereof

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specific Embodiment approach 1

[0011] Specific embodiment 1: A nickel-titanium memory alloy / polyurethane composite damping plate in this embodiment is characterized in that a nickel-titanium memory alloy / polyurethane composite damping plate adopts a three-layer composite structure, consisting of an upper surface layer, a lower surface layer and a middle layer. The damping layer is pressed; the upper surface and the lower surface are nickel-titanium memory alloy plates, and the damping layer is polyurethane plates.

[0012] A nickel-titanium memory alloy / polyurethane composite damping plate in this embodiment adopts a three-layer composite structure, including an upper surface layer, a lower surface layer and a middle damping layer, and the upper surface layer and the lower surface layer are nickel-titanium memory alloy plates, which have high strength and hardness. And the wear resistance and corrosion resistance are better than ordinary metal materials. The middle damping layer is made of elastic polyuretha...

specific Embodiment approach 2

[0013] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the mass fraction of nickel in the nickel-titanium memory alloy sheet material of the upper surface layer and the lower surface layer is 50.7% ~ 51%, the thickness range of the sheet material is 0.2 ~ 1mm, other steps The parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0014] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the polyurethane plate of the damping layer has a glass transition temperature of -43~-47°C, a processing temperature of 180~195°C, and a thickness range of 0.1~2mm, other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a nickel titanium memory alloy / polyurethane compound damping panel and a preparation method thereof and relates to a compound damping panel and the preparation method thereof. The invention aims to solve the technical problems that the present surface layer is a 316L stainless steel compound steel panel, the tensile strength is low, the corrosion resistance is inferior and the present compound damping material has inferior damping effect. The preparation method according to the invention comprises the following steps: placing a nickel titanium memory alloy panel and a polyurethane panel into a hot press, and then pressing for 5-20min under the conditions of 185-195 DEG C temperature and 40-50N pressure, and taking out and cooling in air. The tensile strength of the compound damping panel provided by the invention is 600-800MPa; the precipitation volume of nickel ions in Nacl solution is 0.17ug / ml; the tensile strength is high; the corrosion resistance is excellent; a damping loss factor can reach 0.2; the vibration-reducing and noise-reducing effects are good; and the compound damping panel can be widely applied to passenger cars, trains, ships and buildings.

Description

technical field [0001] The invention relates to a composite damping plate and a preparation method thereof. Background technique [0002] The harm of vibration and noise is huge, which not only destroys the reliability and stability of mechanical equipment operation, but also pollutes the environment and endangers human health. Damping technology has proven to be the most effective way to control structural resonance and noise. Among them, damping material is a widely used damping technology, which can be divided into viscoelastic damping materials, high damping alloys and intelligent damping materials. At present, as an environmentally friendly product, damping materials are widely used in engineering machinery, construction civil engineering, aerospace, precision instruments, transportation and other fields. [0003] Single-substance damping materials have their own defects in engineering applications. For example, the polymer damping material that is widely used at pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/095G10K11/168B32B37/06B32B37/10B32B38/18
Inventor 陈枫肖宇王杨辉田兵李莉郑玉峰
Owner HARBIN ENG UNIV
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