Preparation method for medical false tooth

A denture and atomization technology, applied in the field of medical and health care, can solve the problems of unguaranteed reliability, increase the complexity of processing procedures, reduce cell adaptability, etc., and achieve a friendly internal environment, good biocompatibility, and good smelting. Effect

Inactive Publication Date: 2016-02-24
孙春红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the medical alloys used in the medical field mainly include Ni-Cr series, Co series, Ti series, etc. Among them, the Ti-6Al-4V alloy of the Ti series is the most widely used medical alloy, but it has been found in recent years that Ti- 6Al-4V alloy will precipitate a very small amount of vanadium and aluminum ions during use, and the precipitated vanadium ions are toxic and will cause adverse tissue reactions. Aluminum ions will cause human nervous disorders, reduce cel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1:

[0021] Weigh all kinds of high-purity metals required by the percentage content: the composition of each material is:

[0022] Nb: 0.6%, Fe: 7%, Mo: 6.5%, Mn: 0.7%, Zr: 12%, Ge: 0.65%, Ga: 3.5%, Cr: 3%, Ca: 2%, In: 1.4%, C: 0.03, the balance is Ti.

[0023] Smelting in a vacuum induction furnace, first add Ti, Zr, Fe, Mo, Ga, Cr, Ca, In, Nb, Mn into the crucible of the induction melting furnace, vacuum to 10-4Pa, blow in argon protection, load power To 350KW until the alloy material is completely melted, keep it for 10 minutes, then turn the crucible over and pour it into a graphite mold to obtain an alloy ingot. The alloy ingot is mechanically crushed or atomized to make alloy powder with a particle size of 120-160 mesh.

[0024] Select element powders of Ge and C, with a particle size of 180-200 mesh.

[0025] Add the above powder to the binder and mix it in a double planetary mixer at 140°C for 60 minutes to make a feed with uniform rheological properties, where...

Example Embodiment

[0026] Example 2:

[0027] Weigh all the required high-purity metals according to the percentage content: the composition of each material is the same as in Example 1.

[0028] Among them, the Fe-Cr-In-Ga alloy is smelted in a vacuum induction furnace. First, Fe and Cr are added to the crucible of the induction melting furnace, and the vacuum is evacuated to 10 -4 Pa, blow in argon gas protection, load the power to 350KW until the alloy material is completely melted, add Ga and In, keep it for 5 minutes, then turn the crucible over and pour it into a graphite mold to obtain an alloy ingot, and mechanically crush the above alloy ingot Or atomization method to make powder with a particle size of 80-100 mesh.

[0029] Select the commercially available element powder or the element ingot for the rest of the element powder, and use mechanical pulverization or atomization to make element powder after cleaning. Among them, the particle size of Ti powder and Zr powder is 100-120 mesh, and th...

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PUM

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Abstract

The invention discloses a preparation method for a medical false tooth. According to the preparation method for the medical false tooth, the alloy material comprises the following components of 0.6% of Nb, 7% of Fe, 6.5% of Mo, 0.7% of Mn, 12% of Zr, 0.65% of Ge, 3.5% of Ga, 3% of Cr, 2% of Ca, 1.4% of In, 0.03% of C and the balance Ti. According to the preparation method for the medical false tooth, element powder or alloy powder of all elements with appropriate particle sizes is adopted, after the element powder or the alloy powder is mixed, the element powder or the alloy powder is sintered through injection molding, and accordingly the medical false tooth is obtained; the strength of the manufactured medical false tooth is much larger than that of a medical pure titanium material, the medical false tooth is friendly to the oral environment and low in density, and has good smelting and sintering machining properties; the mechanical properties of the medical false tooth are close to those of a real tooth, and the anti-fatigue property and the anti-corrosion property are good.

Description

technical field [0001] The invention belongs to the medical and health field, and in particular relates to a preparation method of a medical denture. Background technique [0002] With the development of modern medicine and materials science, medical prosthetics, artificial joints, bone fixators, dental implants, heart valve covers, etc. are used to manufacture medical devices, prostheses or artificial organs and auxiliary treatment equipment implanted in the human body. The application in the medical and health field is becoming more and more extensive. As this type of operation becomes more and more mature, the demand for artificial joints has increased significantly, and the above-mentioned components have made great progress in terms of biocompatibility, strength, plasticity, and corrosion resistance. At present, the medical alloys used in the medical field mainly include Ni-Cr series, Co series, Ti series, etc. Among them, the Ti-6Al-4V alloy of the Ti series is the mos...

Claims

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Application Information

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IPC IPC(8): C22C14/00B22F3/22A61K6/04
Inventor 孙春红杨丽丽张志军管洁
Owner 孙春红
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