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3D printing metal powder for dental movable prosthodontics and preparation method thereof

A 3D printing, metal powder technology, applied in dental preparations, metal processing equipment, dentistry, etc., can solve the problem of not meeting the requirements of use, and achieve the effect of low oxygen content, high powder stability, and high powder purity

Inactive Publication Date: 2020-05-26
NANTONG JINYUAN INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Removable dentures, such as removable partial dentures, clasps, implant superstructures, etc., require the manufacturing materials to have excellent toughness and bending fatigue resistance, which cannot meet the requirements of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of 3D printing metal powder for dental activity restoration, is made up of following mass parts raw material:

[0029] Cr 20-30%, Mo 5-10%, Ag 1-5%, Fe≤0.5%, Mn≤0.5%, Si≤1.0%, Ni≤0.05%, C≤0.3%, Be≤0.02%, Cd≤ 0.02%, Co matrix.

[0030] The further improvement of the present invention is that a 3D printing metal powder for dental activity restoration is composed of the following raw materials in parts by mass: Cr 28%, Mo 6%, Ag 2.5%, Fe≤0.5%, Mn≤0.5%, Si≤1.0 %, Ni≤0.05%, C≤0.3%, Be≤0.02%, Cd≤0.02%, Co matrix.

[0031] A preparation method of 3D printing metal powder for dental activity restoration, the specific steps are:

[0032] 1) Melting, batching the prepared chemical components, preparing master alloy ingots by vacuum induction melting, and removing the defects of shrinkage holes in the head; using a vacuum heat treatment furnace to homogenize the composition of the master alloy ingots;

[0033] 2) Atomized powder making, the alloy melt flows freely downwa...

Embodiment 2

[0039] A kind of 3D printing metal powder for dental activity restoration, is made up of following mass parts raw material:

[0040] Cr 20%, Mo 5%, Ag 1%, Fe 0.5%, Mn 0.5%, Si 1.0%, Ni 0.05%, C 0.3%, Be 0.02%, Cd0.02%, Co matrix.

[0041] A preparation method of 3D printing metal powder for dental activity restoration, the specific steps are:

[0042] 1) Melting, batching the prepared chemical components, preparing master alloy ingots by vacuum induction melting, and removing the defects of shrinkage holes in the head; using a vacuum heat treatment furnace to homogenize the composition of the master alloy ingots;

[0043] 2) Atomized powder making, the alloy melt flows freely downward into the gas atomization furnace in the vacuum atomization furnace, and under the impact of the supersonic air flow, the alloy melt is crushed into fine droplets, cooled and solidified to obtain alloy powder;

[0044] 3) Screening. Under the protection of inert gas, the alloy powder prepared is...

Embodiment 3

[0048] A kind of 3D printing metal powder for dental activity restoration, is made up of following mass parts raw material:

[0049] Cr 30%, Mo 10%, Ag 5%, Fe 0.5%, Mn 0.5%, Si 1.0%, Ni 0.05%, C 0.3%, Be 0.02%, Cd0.02%, Co matrix.

[0050] A preparation method of 3D printing metal powder for dental activity restoration, the specific steps are:

[0051] 1) Melting, batching the prepared chemical components, preparing master alloy ingots by vacuum induction melting, and removing the defects of shrinkage holes in the head; using a vacuum heat treatment furnace to homogenize the composition of the master alloy ingots;

[0052] 2) Atomized powder making, the alloy melt flows freely downward into the gas atomization furnace in the vacuum atomization furnace, and under the impact of the supersonic air flow, the alloy melt is crushed into fine droplets, cooled and solidified to obtain alloy powder;

[0053] 3) Screening. Under the protection of inert gas, the alloy powder prepared is ...

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PUM

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Abstract

The invention discloses 3D printing metal powder for dental movable prosthodontics and a preparation method thereof. The 3D printing metal powder for dental movable prosthodontics comprises the following raw materials of, in parts by mass, 20-30% of Cr, 5-10% of Mo, 1-5% of Ag, less than or equal to 0.5% of Fe, less than or equal to 0.5% of Mn, less than or equal to 1.0% of Si, less than or equalto 0.05% of Ni, less than or equal to 0.3% of C, less than or equal to 0.02% of Be, less than or equal to 0.02% of Cd and Co matrix. The preparation method of the 3D printing metal powder for dental movable prosthodontics comprises the following specific steps that 1) smelting is conducted, specifically, prepared chemical components are proportioned, a master alloy ingot is prepared through vacuuminduction smelting, and the defect of shrinkage cavity is removed; and component homogenization heat treatment is performed on the master alloy ingot by adopting a vacuum heat treatment furnace; 2) powder preparation is conducted through atomization; 3) screening is conducted, specifically, prepared alloy powder is screened through an ultrasonic vibrating screen under the protection of inert gas;and 4) selective laser melting (SLM) forming is conducted. According to the 3D printing metal powder for dental movable prosthodontics and the preparation method thereof, the performance requirementsof the movable prosthesis are met, and antibacterial property are achieved.

Description

technical field [0001] The invention relates to a 3D printing metal powder for dental activity restoration and a preparation method thereof. Background technique [0002] At present, there are no national and industry standards recommended material grades for dental movable restoration metal materials, and the national pharmaceutical industry standard YY01173-2005 "Surgical Implant Bone Joint Prosthesis Forging and Casting Cobalt-Chromium-Molybdenum Alloy Casting" is generally used in the market. Material composition: Cr 26.5~30.0, Mo 4.5~7.0, Ni ≤1.0%, Fe ≤1.0%, Mn ≤1.0%, Si≤1.0%, C ≤0.35%, Co matrix. [0003] Dental and orthopedic use environments and performance requirements for materials are different, so adjustments need to be made on this basis. Removable dentures, such as removable partial dentures, clasps, implant superstructures, etc., require the manufacturing materials to have excellent toughness and bending fatigue resistance, and this component cannot meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/07B22F9/08C22F1/10B22F3/105B22F1/00A61K6/84A61K6/831B33Y70/00
CPCC22C19/07B22F9/082C22F1/10B33Y70/00B22F10/00B22F1/065B22F10/34B22F10/36B22F10/28Y02P10/25
Inventor 胡玉姜勇岳巍梁廷禹
Owner NANTONG JINYUAN INTELLIGENT TECH CO LTD
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