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Heating composite material and preparation method thereof

A technology of composite materials and thermally conductive insulating materials, which is applied in the field of heating composite material preparation, can solve the problems of difficult to obtain heating composite materials with sandwich structure, complicated experimental devices, etc., and achieves excellent biocompatibility, stable heating, and good interface bonding. Effect

Inactive Publication Date: 2014-09-03
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chen Huojin and others from Dalian Shipyard successfully trial-produced the first explosive composite plate in China. Xue Xiaojun and others prepared a nickel-based alloy composite plate by means of explosive compounding. Hokamoto realized the connection of metal and ceramics by explosive compounding. This method Using bulk ceramic material as the base material, a very thin metal plate is obtained on the base material by means of underwater explosion; the experimental device is very complicated due to the underwater explosion
Moreover, it is difficult to obtain a heat-generating composite material with a sandwich structure by using the above method.
[0005] In short, the application of explosive forming compaction and composite technology to the process of preparing titanium or titanium alloy / thermally conductive insulating material / electric heating alloy heating composite material with a sandwich structure is rarely recorded in the relevant literature.

Method used

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Examples

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Effect test

Embodiment 1

[0042] A preparation method of a human body implant composite material with heating function, the steps are as follows:

[0043] The first step, raw material processing:

[0044] Take the Cr20Ni80 nickel-chromium alloy core material with a length of 500mm and a diameter of 8mm 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 concentration of 18% by mass and NaCl with a concentration of 3% at a temperature of 65°C, and then wash with water for 5 minutes; After being passivated in a nitric acid solution with a temperature of 60°C and a concentration of 8% by mass for 3 minutes, it was washed with water and dried to obtain a core material and a pipe with a silver-white metallic luster on the surface; the aluminum oxide ceramic powder was pretreated at 800°C Heat for 50 minutes.

[0045] The secon...

Embodiment 2

[0057] The preparation method of biomedical heating composite material, the steps are as follows:

[0058] The first step, raw material processing:

[0059] Take the Cr30Ni70 nickel-chromium alloy core material with a length of 550mm and a diameter of 6mm and a TC4 titanium tube with a length of 550mm, an outer diameter of 13mm, and a wall thickness of 0.5mm. After washing with caustic soda solution for 5 minutes, wash with water, then pickle in a mixed solution of sulfuric acid with a concentration of 18% by mass and NaCl with a concentration of 3% at a temperature of 70°C, and then wash with water for 3 minutes; After being passivated in nitric acid solution with a concentration of 8% by mass at 70°C for 5 minutes, washed with water and dried to obtain a core material and a tube with a silver-white metallic luster on the surface; preheat the ITO nano-ceramic powder at 850°C for 50 minute.

[0060] The second step, explosive compounding:

[0061] See attached figure 1 , p...

Embodiment 3

[0065] The preparation method of biomedical heating composite material, the steps are as follows:

[0066] The first step, raw material surface treatment:

[0067] Take a Cr20Ni35 nickel-chromium-iron alloy core material with a length of 450mm and a diameter of 7mm and a TA2 titanium tube with a length of 450mm, an outer diameter of 15mm and a wall thickness of 1mm, and use industrial caustic soda with a temperature of 450°C and a concentration of 95% by mass. After the solution was washed for 5 minutes, it was washed with water, and then placed in a mixed solution of 18% sulfuric acid and 3% NaCl at a temperature of 65°C and then washed with water for 3 minutes; finally, placed at a temperature of Passivate in 8% nitric acid solution at 60°C for 3 minutes, wash with water and dry to obtain a core material and tube with a silver-white metallic luster on the surface; preheat the silicon carbide ceramic powder at 800°C for 50 minutes .

[0068] The second step, explosive compo...

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Abstract

The invention relates to a heating composite material and a preparation method thereof, particularly a biocompatible and stably heating composite material and a preparation method thereof, and belongs to the technical field of preparation of the heating composite material. The heating composite material provided by the invention is composed of a coating material, a transition layer material and a core material in a sandwich structure. The coating material uniformly coats the outer surface of the transition layer material; the transition layer material uniformly coats the outer surface of the core material; the coating material is titanium or titanium alloy; the transition layer material is a thermal conductive and insulating material; and the core material is electrothermal alloy. By combining explosive compaction, compounding technology and annealing treatment, the heating composite material with good interface adhesion, stable and uniform heating property, excellent biocompatibility, good structure and mechanical property is obtained. Meanwhile, the explosive compaction process designed by the invention has the advantages of simpleness, convenience for operation and low cost.

Description

technical field [0001] The invention relates to a heating composite material and a preparation method thereof, in particular to a biocompatible and stable heating composite material and a preparation method thereof, and belongs to the technical field of heating composite material preparation. Background technique [0002] Titanium and titanium alloys are currently the most widely used medical metal materials, with good biocompatibility, and its application fields include orthopedics, orthopedics, dentistry, stomatology, vascular dilators, artificial trachea, cardiac pacemaker and surgical medical treatment Equipment, etc. However, this material has good electrical conductivity and does not have a good heat generation function. Nickel-chromium, nickel-chromium-iron, and iron-chromium-aluminum alloys have excellent properties such as high strength, high resistance, and corrosion resistance, and are often used as resistance materials. Ceramic powder, engineering plastic powde...

Claims

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Application Information

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IPC IPC(8): B32B15/04B32B15/08B32B37/00
Inventor 汪冰峰谢方宇罗孝周黄东
Owner CENT SOUTH UNIV
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