Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of inconel625 nickel-based alloy powder for laser selective melting technology

A laser selective melting, nickel-based alloy technology, applied in the field of additive manufacturing, can solve the problems of low material utilization rate, macro-component segregation, etc., to achieve the effect of high particle sphericity, appropriate ratio relationship, and lower production costs

Active Publication Date: 2017-06-16
SHANGHAI RES INST OF MATERIALS CO LTD +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inconel625 nickel-based alloy parts manufactured by traditional processes such as casting and forging have the shortcomings of macroscopic component segregation and low material utilization, but the use of SLM technology can effectively overcome the above shortcomings

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of inconel625 nickel-based alloy powder for laser selective melting technology
  • Preparation method of inconel625 nickel-based alloy powder for laser selective melting technology
  • Preparation method of inconel625 nickel-based alloy powder for laser selective melting technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of the Inconel625 nickel base alloy powder that is used for laser selective melting technique comprises the following steps:

[0036] (1) Smelting: Put the Inconel625 nickel-based alloy raw material into a vacuum induction furnace for smelting, and the smelting temperature is controlled at 1450°C. After smelting, an Inconel625 nickel-based alloy bar is obtained. The alloy composition ratio is: Ni: 62%, Cr: 22%, Mo: 9%, Nb: 4.0%, Fe: 2.5%, Al: ≤0.4%, Ti: ≤0.4%, Mn: ≤0.5%, Si: ≤0.5%, C: ≤0.1%, P: ≤0.015% , S: ≤0.015%;

[0037] (2) Processing: Inconel625 nickel-based alloy bar according to figure 1 The structure is processed into a cylindrical rod with a cone angle of 80°;

[0038] (3) Atomization: Vacuum electrode induction melting is performed on the processed Inconel625 nickel-based alloy rod, and the descending speed of the rod is controlled at 20mm / min. Under the impact of the air flow, the atomization forms fine droplets. The atomization gas...

Embodiment 2

[0042] The preparation method of the Inconel625 nickel base alloy powder that is used for laser selective melting technique comprises the following steps:

[0043] (1) Smelting: Put the Inconel625 nickel-based alloy raw material into a vacuum induction furnace for smelting, and the smelting temperature is controlled at 1500 ° C. After smelting, an Inconel625 nickel-based alloy bar is obtained. The alloy composition ratio is: Ni: 62%, Cr: 22 %, Mo: 9%, Nb: 3.6%, Fe: 3.5%, Al: ≤0.4%, Ti: ≤0.4%, Mn: ≤0.5%, Si: ≤0.5%, C: ≤0.1%, P: ≤ 0.015%, S: ≤0.015%;

[0044] (2) Processing: Inconel625 nickel-based alloy rods are processed according to the attached figure 1 Processed into a cylindrical rod with a cone angle of 75°;

[0045] (3) Atomization: Vacuum electrode induction melting is performed on the processed Inconel625 nickel-based alloy rod, and the descending speed of the rod is controlled at 30mm / min. Under the airflow, atomize to form fine droplets. The atomization gas is hig...

Embodiment 3

[0049] The preparation method of the Inconel625 nickel base alloy powder that is used for laser selective melting technique comprises the following steps:

[0050] (1) Smelting: Put the Inconel625 nickel-based alloy raw material into a vacuum induction furnace for smelting, the smelting temperature is controlled at 1550°C, and the Inconel625 nickel-based alloy bar is obtained by smelting. The alloy composition ratio is: Ni: 62%, Cr: 22% , Mo: 9%, Nb: 3.2%, Fe: 4.5%, Al: ≤0.4%, Ti: ≤0.4%, Mn: ≤0.5%, Si: ≤0.5%, C: ≤0.1%, P: ≤0.015 %, S: ≤0.015%;

[0051] (2) Processing: Inconel625 nickel-based alloy rods are processed according to the attached figure 1 Processed into a cylindrical rod with a cone angle of 90°;

[0052] (3) Atomization: Vacuum electrode induction melting is carried out on the processed Inconel625 nickel-based alloy rod, and the descending speed of the rod is controlled at 40mm / min. Under the airflow, atomize to form fine droplets. The atomization gas is high-p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
angleaaaaaaaaaa
particle sizeaaaaaaaaaa
bulk densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of Inconel625 nickel-based alloy powder used for laser selective melting technology. The method combines vacuum electrode induction melting technology and ultrasonic tight-coupling atomization technology, adopts ultrasonic vibration classification and airflow classification, and The powders of different particle sizes are mixed to prepare Inconel625 nickel-based alloy powder suitable for laser selective melting technology. Compared with the prior art, the Inconel625 nickel-based alloy powder prepared by the present invention has the performance characteristics of high sphericity, uniform particle size distribution, low oxygen content, low impurity content, etc., and meets the performance requirements of laser selective melting technology for powder materials, Promote the development of metal additive manufacturing technology.

Description

technical field [0001] The invention relates to a method for preparing nickel-based alloy powder, in particular to a method for preparing Inconel625 nickel-based alloy powder used in laser selective melting technology, and belongs to the field of additive manufacturing. Background technique [0002] Additive manufacturing is a manufacturing technology that uses lasers or electron beams, based on three-dimensional modeling, to add and accumulate materials layer by layer under computer control to directly form parts quickly and accurately, also known as "3D printing". Additive manufacturing technology does not require traditional tools, fixtures, and multiple processing procedures. Using 3D design data, it can quickly and accurately manufacture parts of any complex shape on one device. Compared with the traditional method of material removal (or deformation) Processing and common special processing technology, additive manufacturing technology has a very high material utilizat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/08C22C19/05B22F1/00B33Y70/00
Inventor 吴文恒杨启云仲守亮曹冲
Owner SHANGHAI RES INST OF MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com