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Titanium-containing cobalt-chromium alloy, preparation method and application thereof

A cobalt-chromium alloy and alloy technology, applied in the field of alloys, can solve the problems of inability to take into account biocompatibility, corrosion resistance, hardness, and metal-ceramic bonding strength, and achieve good alloy biocompatibility, improved matching, and low price Effect

Inactive Publication Date: 2020-04-24
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The first purpose of the present invention is to provide a titanium-containing cobalt-chromium alloy to solve the technical problems in the prior art that cannot take into account biocompatibility, corrosion resistance, hardness, and metal-ceramic bonding strength.

Method used

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  • Titanium-containing cobalt-chromium alloy, preparation method and application thereof
  • Titanium-containing cobalt-chromium alloy, preparation method and application thereof
  • Titanium-containing cobalt-chromium alloy, preparation method and application thereof

Examples

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Embodiment 1

[0049] This embodiment provides a titanium-containing cobalt-chromium alloy, which contains by weight percentage: 27.0% Cr, 6.0% Mo, 3.0% Ti, 2.5% Cu, 0.5% Mn, 0.7% Si, and the rest is Co .

[0050] The preparation method of the titanium-containing cobalt-chromium alloy of the present embodiment may further comprise the steps:

[0051] (1) Using metal chromium, metal molybdenum, metal titanium, electrolytic manganese, crystalline silicon, metal copper, and electrolytic cobalt as raw materials, according to Cr 27.0%, Mo 6.0%, Ti 3.0%, Cu 2.5%, Mn 0.5%, Si 0.7 %, the rest are the weight percent ingredients of Co, mixed uniformly;

[0052](2) Put the raw materials prepared in step (1) in a vacuum induction furnace, raise the temperature to 1450° C., and keep the temperature for 30 minutes.

Embodiment 2

[0054] This embodiment provides a titanium-containing cobalt-chromium alloy, which contains by weight percentage: 23.0% Cr, 8.0% Mo, 3.5% Ti, 4.0% Cu, 0.5% Mn, 0.5% Si, and the rest is Co .

[0055] The preparation method of the titanium-containing cobalt-chromium alloy of the present embodiment may further comprise the steps:

[0056] (1) Using metal chromium, metal molybdenum, metal titanium, electrolytic manganese, crystalline silicon, metal copper, and electrolytic cobalt as raw materials, according to Cr 23.0%, Mo 8.0%, Ti 3.5%, Cu 4.0%, Mn 0.5%, Si 0.5 %, the rest are the weight percent ingredients of Co, mixed uniformly;

[0057] (2) Put the raw materials prepared in step (1) in a vacuum induction furnace, raise the temperature to 1450° C., and keep the temperature for 30 minutes.

Embodiment 3

[0059] This embodiment provides a titanium-containing cobalt-chromium alloy, which contains by weight percentage: 30.0% Cr, 5.0% Mo, 1.5% Ti, 2.0% Cu, 0.5% Mn, 1.2% Si, and the rest is Co .

[0060] The preparation method of the titanium-containing cobalt-chromium alloy of the present embodiment may further comprise the steps:

[0061] (1) Using metal chromium, metal molybdenum, metal titanium, electrolytic manganese, crystalline silicon, metal copper, and electrolytic cobalt as raw materials, according to Cr 30.0%, Mo 5.0%, Ti 1.5%, Cu 2.0%, Mn 0.5%, Si 1.2 %, the rest are the weight percent ingredients of Co, mixed uniformly;

[0062] (2) Put the raw materials prepared in step (1) in a vacuum induction furnace, raise the temperature to 1450° C., and keep the temperature for 30 minutes.

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Abstract

The invention relates to the technical field of alloys, in particular to a titanium-containing cobalt-chromium alloy, a preparation method and application thereof. The titanium-containing cobalt-chromium alloy comprises the following components according to the weight percentage: 23.0-30.0% of Cr, 5.0-8.0% of Mo, 1.5-3.5% of Ti, 0-1.0% of Mn, 0-2.0% of Si, 2.0-4.0% of Cu, and the balance being Co.The titanium-containing cobalt-chromium alloy has the tensile strength of 828 MPa, the yield strength of 632 MPa, the elongation percentage of 8%-15%, the Vickers hardness of HV 270-330, and the casting shrinkage ratio of 1.5%-2.0 %, and has a suitable coefficient of thermal expansion with earthenware, can be used for making a denture movable repairing bracket, a porcelain base crown and the like.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a titanium-containing cobalt-chromium alloy and a preparation method and application thereof. Background technique [0002] Dental casting alloys are widely used in dental restorations, mainly for casting base brackets of artificial teeth, casting crowns and bridges, attachment denture brackets, clasps, inner and outer crowns of telescopic crowns, etc., including fixed partial dentures Dentures and removable partial dentures are the most widely used oral restoration techniques. The dental alloy restoration adopts the method of combining the metal matrix and the porcelain surface. While restoring the patient's good chewing function, it has both the strength of the metal and the beauty of the ceramic, and has excellent corrosion resistance and wear resistance. [0003] At present, there are many kinds of dental casting alloys, and there are about 500 kinds on the market. The most w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/07A61C5/70A61C13/00A61C13/083C22C1/02
CPCA61C13/00A61C13/083A61C5/70C22C1/02C22C19/07
Inventor 刘洁董宏伟李永郝庆乐张冠星刘晓芳侯江涛李涛
Owner ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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