Coil carbon nano tube preparation and welding methods

Abstract

The invention discloses coil carbon nano tube preparation and welding methods, and relates to the technical field of metal-based composite materials. The coil carbon nano tube welding method comprisesthe following steps: S01, preparing a mixed acid solution from concentrated sulfuric acid at a concentration of 98 percent and nitric acid at a concentration of 70 percent to soak a welding part of acarbon nano tube, and finally putting the carbon nano tube into a surfactant solution at a concentration of 15 to 20 percent for soaking; S02, grinding the welding surface of a metal piece with abrasive paper, and cleaning and soaking the metal piece with alcohol; S03, transferring the metal piece into a carbon dioxide container for laser treatment; S04, welding the carbon nano tube and the metalpiece by adopting an ultrasonic metal welding machine. By use of a carbon nano tube coil, the used nano material can be bent for multiple times without affecting the characteristic due to the high flexibility and the extremely light weight; furthermore, the coil carbon nano tube is light in weight and convenient to use and can be made into a similarly wearable coil; the problems of heaviness andinconvenience in use and storage of an existing coil structure are solved.

Description

technical field [0001] The invention belongs to the technical field of metal matrix composite materials, and in particular relates to a method for preparing coil carbon nanotubes and a method for welding coil carbon nanotubes. Background technique [0002] Conventional nuclear magnetic resonance imaging coils use copper as a conductor. This conventional coil using copper can obtain a higher signal-to-noise ratio due to the good conductivity of copper, but at the same time when the multi-channel coil is working, the channel The coupling of the coil is also enhanced, which affects the performance of the coil. In order to reduce the coupling between channels, it can only be realized by reducing mutual inductance through accurate channel position relationship or using low-impedance amplifiers. In order to meet the performance requirements, the coil design restrictions are added in terms of coil layout and circuit structure. The nuclear magnetic resonance imaging coil of the pr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing and welding coil carbon nanotubes. By using carbon nanotube coils, the nanomaterials used have good flexibility and extremely light properties, and multiple bending does not affect its material properties, and the weight Lightweight and easy to use, it can form a similar wearable coil, which solves the problem that the existing coil structure is bulky and inconvenient to use and store