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Biomedical heating composite and preparation method thereof

A biomedical and composite material technology is applied in the fields of biomedical heating composite rod materials and preparation, and biomedical heating composite materials and preparation fields, which can solve the problems of weakening the interface connection performance of composite materials, achieve good tissue and mechanical properties, and meet biological requirements. Compatible, even heating effect

Inactive Publication Date: 2013-04-10
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] As titanium is an extremely active metal, it is prone to oxidation reactions under high temperature and high pressure conditions, especially when combined with alloy elements such as nickel and chromium, it is easy to form brittle intermetallic compounds, which easily weakens the interfacial connection performance of composite materials.

Method used

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  • Biomedical heating composite and preparation method thereof

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preparation example Construction

[0027] The preparation method of biomedical heating composite material, the steps are as follows:

[0028] The first step, raw material surface treatment:

[0029] Take the X20H80 nickel-chromium alloy core material with a length of 500mm and a diameter of 10mm and a TA2 titanium tube with a length of 500mm, an outer diameter of 13mm and a wall thickness of 0.5mm. After washing with caustic soda solution for 3 minutes, wash with water, then pickle in a mixed solution of sulfuric acid with a mass percentage concentration of 18% and NaCl with a mass percentage concentration of 3% at a temperature of 65°C, and then wash with water for 5 minutes; finally, place at temperature After being passivated in nitric acid solution with a temperature of 60°C and a mass percent concentration of 8% for 3 minutes, it was washed with water and dried to obtain a core material and a tube with a silver-white metallic luster on the surface;

[0030] The second step, explosive compounding:

[0031...

Embodiment 2

[0036] The preparation method of biomedical heating composite material, the steps are as follows:

[0037] The first step, raw material surface treatment:

[0038]Take the X15H60 nickel-chromium alloy core material with a length of 600mm and a diameter of 9mm and a TC4 titanium tube with a length of 600mm, an outer diameter of 14mm and a wall thickness of 1mm, and use industrial caustic soda with a temperature of 450°C and a concentration of 95% by mass. The solution was washed with water for 5 minutes, then placed in a mixed solution of sulfuric acid with a mass percentage concentration of 18% and NaCl with a mass percentage concentration of 3% at a temperature of 70°C, and then washed with water for 8 minutes; finally, placed at a temperature of 70°C, passivation in nitric acid solution with a mass percentage concentration of 8% for 5 minutes, washed with water, and dried to obtain core materials and pipes with a silver-white metallic luster on the surface;

[0039] The sec...

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Abstract

The invention discloses a biomedical heating composite and a preparation method thereof. The preparation method comprises the following steps of: washing the surfaces of a nichrome bar and a titanium or titanium alloy pipe till new metal surfaces are exposed; then, sleeving the nichrome bar in the titanium or titanium alloy pipe and putting the titanium or titanium alloy pipe in an explosive cladding sleeve to realize accurate positioning, wherein a gap between the titanium or titanium alloy pipe and the nichrome bar is 0.5-2mm; and uniformly putting explosive charges which are 5-20mm thick between the outer side of the titanium or titanium alloy pipe and the explosive cladding sleeve, manufacturing a biomedical heating composite by an explosive cladding process and appropriate heat treatment processes, carrying out multi-pass drawing on the biomedical heating composite to product biomedical heating composite wires. The biomedical heating composite prepared by using the preparation method is good in composite interface controllability, has the excellent performances of biocompatibility and heating stability, gives full play to the biocompatibility of the titanium or titanium alloy as well as high strength and corrosion resistance of nichrome, is high in electric resistance, can achieve multiple functional characteristics, such as vibration under the electromagnetic action and can be applied to the biomedical field and suitable for industrial production.

Description

technical field [0001] The invention relates to a biomedical heating compound rod material and a preparation method thereof. In particular, it refers to a biomedical heating composite material with biocompatibility and stable heating and a preparation method thereof. The invention belongs to the technical field of biomedical material preparation. Background technique [0002] With the increasing pressure of social competition, population aging and other reasons, chronic myofasciitis and other pain diseases have become one of the main causes of long-term and chronic intractable pain in the human body. ideal. Therefore, there is an urgent need to develop a material with vibration and heat generation, so that it has uniform heat generation, stable vibration, and non-toxicity to the human body, that is, biocompatibility, so that it can be used for the treatment of chronic myofascitis, and extended to other Treatment of neuropathic pain and cancer pain. [0003] Titanium and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F7/00A61H23/02
Inventor 汪冰峰陈伟黄东罗孝周
Owner CENT SOUTH UNIV
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