3D printing metal powder for dental fixed-removable restoration and preparation method thereof
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A 3D printing and metal powder technology, which is applied in the directions of additive manufacturing, energy efficiency improvement, additive processing, etc., can solve the problems of not being able to match the performance requirements at the same time, and achieve the performance and powder that meet the emphasis on toughness and bending fatigue of removable dentures. The effect of high sphericity and high powder stability
Inactive Publication Date: 2020-04-24
NANTONG JINYUAN INTELLIGENT TECH CO LTD
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Summary
Abstract
Description
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Problems solved by technology
Cobalt-chromium alloy materials currently on the market are both special materials for fixed dentures and removable dentures, which cannot match the performance requirements of both purposes at the same time
Method used
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Examples
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Effect test
Embodiment 1
[0030] A 3D printing metal powder for dental fixation and movable restoration, consisting of the following raw materials in parts by mass:
[0031] Cr 20-30%, Mo 1-5%, W 5-10%, Fe≤1%, Mn≤1%, Si≤2%, Ni≤0.1%, C≤1%, Be≤0.1%, Cd≤ 0.1%, Co matrix.
[0032] A preparation method of 3D printing metal powder for dental fixation and movable restoration, the specific steps are:
[0033] 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;
[0034] 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;
[0035] 3) Sieving, under the protection of inert gas, use ...
Embodiment 2
[0040] A 3D printing metal powder for dental fixation and movable restoration, consisting of the following raw materials in parts by mass:
[0041] Cr 20%, Mo 1%, W 5%, Fe≤0.2%, Mn≤0.3%, Si≤0.5%, Ni≤0.01%, C≤0.1%, Be≤0.01%, Cd≤0.01%, Co matrix.
[0042] In this example, the preparation method of a 3D printing metal powder for dental fixation and movable restoration is the same as Example 1.
Embodiment 3
[0044] A 3D printing metal powder for dental fixation and movable restoration, consisting of the following raw materials in parts by mass:
[0045] Cr 30%, Mo 5%, W 10%, Fe 1%, Mn 0.5%, Si 2%, Ni 0.1%, C 1%, B 0.1%, Cd 0.1%, Co matrix.
[0046] In this example, the preparation method of a 3D printing metal powder for dental fixation and movable restoration is the same as Example 1.
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PUM
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Abstract
The invention discloses 3D printing metal powder for dental fixed-removable restoration and a preparation method thereof. The 3D printing metal powder for dental fixed-removable restoration comprises,by mass, 20-30% of Cr, 1-5% of Mo, 5-10% of W, less than or equal to 1% of Fe, less than or equal to 1% of Mn, less than or equal to 2% of Si, less than or equal to 0.1% of Ni, less than or equal to1% of C, less than or equal to 0.1% of Be, less than or equal to 0.1% of Cd, and Co as a matrix. The preparation method of the 3D printing metal powder for dental fixed-removable restoration comprisesthe specific steps of (1) conducting smelting, specifically, mixing prepared chemical components, preparing a master alloy ingot through vacuum induction smelting and cutting off the shrinkage cavitydefect at the head; and conducting homogenizing heat treatment on the master alloy ingot through a vacuum heat treatment furnace; (2) conducting atomization pulverizing; (3) conducting screening to obtain spherical alloy powder; (4) conducting selective laser melting forming; and (5) conducting heat treatment. Through the 3D printing metal powder for dental fixed-removable restoration and the preparation method thereof, the requirements for properties of a fixed-removable restoration body can be met.
Description
technical field [0001] The invention relates to the field of 3D printers, in particular to a 3D printing metal powder for dental fixation and movable restoration and a preparation method thereof. Background technique [0002] At present, there are no national and industry standards for metal materials for dental restoration. The market generally refers to the materials in the national pharmaceutical industry standard YY01173-2005 "Surgical Implant Bone Joint Prosthesis Forging and Casting Cobalt-Chromium-Molybdenum Alloy Casting" 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. According to the type of use and mechanical properties, dental restoration materials are divided into 0-6 types, of which 0-3 types are used for fixed dentures, such as crowns, bridges, inlays, etc., ...
Claims
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Application Information
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