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Nickel-based alloy powder material and 3D printing forming method thereof

A technology for nickel-based alloys and powder materials, applied in the field of high-temperature powder alloys, can solve the problems of ingot-forging method segregation, inability to guarantee material reliability, and complex composition of high-temperature alloys, achieve high structural strength and surface quality, and improve powder The effect of utilization efficiency, high temperature corrosion resistance and excellent microstructure stability of superalloy

Inactive Publication Date: 2019-04-26
DANYANG HONGTU LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the turbine disc is the core component of the aero-engine, which is very difficult to manufacture and is called the "crown" of the aero-engine; in the past, the ingot-forging technology was used to manufacture the turbine disc, but with the development of the aero-engine, high temperature The use of alloy materials is becoming more and more widespread. If traditional forging technology is used, on the one hand, processing is more difficult; on the other hand, due to the complex composition of high-temperature alloys, the ingot-forging method will cause segregation, and the reliability of the material cannot be guaranteed.

Method used

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  • Nickel-based alloy powder material and 3D printing forming method thereof
  • Nickel-based alloy powder material and 3D printing forming method thereof

Examples

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Effect test

Embodiment 1

[0035]Example 1 A nickel-based alloy powder material, the composition weight percent of which is: C ≤0.01%, Si 0.2%~0.8%, Mn 0.3%~0.5%, Cr 18.5~25.5%, Mo 8.5~11.5%, Nb 2.5% ~4.5%, the balance is nickel; when preparing, add 250 parts by weight of Cr, 110 parts by weight of Mo, 40 parts by weight of Nb, 4 parts of Mn, 6 parts by weight of Si and 590 parts by weight of Ni into a vacuum induction furnace Heating in the vacuum induction furnace and controlling the melting temperature range of 1500°C to 1600°C in the vacuum induction furnace to obtain the alloy melt; atomizing and granulating the obtained alloy melt, specifically including: pouring the alloy melt into the middle leakage bag, Open the leakage valve, the alloy melt flows into the gas atomization furnace freely through the leakage hole at the bottom of the middle leakage bag, under the impact of the high-speed inert gas flow, the alloy melt is crushed into fine droplets, and the alloy is obtained after cooling and solid...

Embodiment 2

[0037] A 3D printing method for manufacturing turbine disks (other embodiments may also be products such as engine blades) from nickel-based alloy powder materials, comprising the following steps:

[0038] A. Process design: first use the 3D computer software in the computer (including I-DEAS, Pro / E, Solidworks, Solidedge, etc.) to scan and model the turbine disk to obtain a complete mathematical model of the turbine disk; The continuous three-dimensional digital model of the turbine disc is discretely processed in layered slices to obtain slices of each layer with a thickness of 0.5mm, and the above information is transmitted to the control system of the 3D printing machine.

[0039] B. Preparation before processing: Clean up the 3D printer bed to ensure the smooth range of movement of the manipulator 3 and the three-axis chuck in the working space; check the sealing of the working space to ensure the purity of the protective atmosphere in the space; figure 1 As shown, the pr...

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Abstract

The invention relates to nickel-based alloy powder material and a 3D printing forming method thereof. The nickel-based alloy powder material comprises the following components in percentage by weight:not greater than 0.01% of C, 0.2-0.8% of Si, 0.3-0.5% of Mn, 18.5-25.5% of Cr, 8.5-11.5% of Mo, 2.5-4.5% of Nb, and the balance nickel; and the particle size of powder is 53-150 microns. The nickel-based alloy powder is outstanding in high-temperature strength, fatigue resistance, high-temperature corrosion resistance and high-temperature stability of an alloy structure, and outstanding in temperature bearing capacity.

Description

technical field [0001] The invention relates to the technical field of high-temperature powder alloys, in particular to a nickel-based alloy powder material and a 3D printing molding method for the material. Background technique [0002] The level and scale of the machinery manufacturing industry is one of the important symbols to measure the level of science and technology and economic strength of a country. The machinery manufacturing industry is the basic industry of the national economy. Its development directly affects the development of various sectors of the national economy and provides technology for the entire national economy. Equipment, its level of development is one of the main symbols of the degree of industrialization of a country. However, due to the late development of my country's machinery manufacturing industry, there is still a large gap between my country and the international advanced level in general. Only by finding the crux of the problem through p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05B22F1/00B22F3/105
CPCB22F1/0003C22C19/055B22F3/003B33Y10/00B33Y30/00B33Y70/00B22F10/00B22F12/70B22F12/53B22F10/68B22F10/66B22F10/25B22F10/34B22F10/36B22F10/32B22F10/64Y02P10/25
Inventor 何建方刘少彬马万花刘汉杰
Owner DANYANG HONGTU LASER TECH
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