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Preparation method of TA32 titanium alloy powder for 3D printing

A 3D printing and titanium alloy technology, which is applied in the field of preparation of TA32 titanium alloy powder for 3D printing, can solve problems such as difficult titanium alloy powder, achieve excellent mechanical properties, improve fine powder yield, and solve the effect of long processing cycle

Inactive Publication Date: 2020-06-26
AEROSPACE HIWING HARBIN TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3D printing has high requirements on the quality of raw material powder, and its chemical composition, fluidity, particle shape and other properties must meet certain requirements. It is difficult for general titanium alloy powder preparation technology to efficiently produce titanium alloy powder that meets its conditions, such as: rotating Electrode method, hydrodehydrogenation pulverization method, plasma spheroidization and other methods

Method used

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  • Preparation method of TA32 titanium alloy powder for 3D printing
  • Preparation method of TA32 titanium alloy powder for 3D printing
  • Preparation method of TA32 titanium alloy powder for 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The invention provides a TA32 titanium alloy powder for 3D printing and a preparation method thereof. The preparation method is carried out according to the following steps:

[0033] Step 1: According to the following mass percentages: Al 5.0%, Zr 2.5%, Nb 0.2%, Mo 0.3%, Sn 3.0%, Ta 0.2%, Si 0.1%, and the balance is Ti and unavoidable impurities. Put the good raw materials in the copper crucible, then put the copper crucible into the induction melting equipment, increase the power of the equipment at a rate of 50KW / min, and when it reaches 390KW~400KW, maintain the power until the temperature of the titanium liquid in the copper crucible reaches 1750℃~1800℃, smelting for 5min~10min, and then flow into the mold through the nozzle to cool and solidify to form, so as to obtain TA32 titanium alloy ingot with a weight of 15kg~30kg;

[0034] Step 2: Use pickling solution to pickle the surface of the TA32 titanium alloy ingot to remove the surface reaction layer and prevent co...

Embodiment 2

[0041] The invention provides a TA32 titanium alloy powder for 3D printing and a preparation method thereof. The preparation method is carried out according to the following steps:

[0042] Step 1: According to the following mass percentages: Al 6.5%, Zr 4%, Nb 1.0%, Mo 2.0%, Sn 4.5%, Ta 0.8%, Si 0.6%, and the balance is Ti and unavoidable impurities. Put the raw materials in the copper crucible, then put the copper crucible into the induction melting equipment, increase the power of the equipment at a rate of 50KW / min, and when it reaches 390KW~400KW, maintain the power until the temperature of the titanium liquid in the copper crucible reaches 1750 ℃~1800℃, smelting for 5min~10min, and then flow into the mold through the nozzle to cool and solidify to form, so as to obtain TA32 titanium alloy ingot with a weight of 15kg~30kg;

[0043] Step 2: Use pickling solution to pickle the surface of the titanium alloy ingot to remove the surface reaction layer and prevent contamination...

Embodiment 3

[0050] The invention provides a TA32 titanium alloy powder for 3D printing and a preparation method thereof. The preparation method is carried out according to the following steps:

[0051] Step 1: According to the following mass percentages: Al 5.5%, Zr 3%, Nb 0.5%, Mo 0.6%, Sn 3.5%, Ta 0.5%, Si 0.4%, the balance is Ti and unavoidable impurities, and the prepared Put the raw materials in the copper crucible, then put the copper crucible into the induction melting equipment, increase the power of the equipment at a rate of 50KW / min, and when it reaches 390KW~400KW, maintain the power until the temperature of the titanium liquid in the copper crucible reaches 1750 ℃~1800℃, smelting for 5min~10min, and then flow into the mold through the nozzle to cool and solidify to form, so as to obtain TA32 titanium alloy ingot with a weight of 15kg~30kg;

[0052] Step 2: Use pickling solution to pickle the surface of the titanium alloy ingot to remove the surface reaction layer and prevent ...

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Abstract

The invention discloses a preparation method of TA32 titanium alloy powder for 3D printing and belongs to the related technical field of 3D printing. The preparation method comprises the following steps of preparing a TA32 titanium alloy ingot; pickling the surface of the TA32 titanium alloy ingot by a pickling solution to remove a surface reaction layer, drying the cleaned TA32 titanium alloy ingot, putting the TA32 titanium alloy ingot in a water cooling split copper crucible, placing the copper crucible in a smelting chamber of inert gas atomization powdering production equipment, startinga heating program of the inert gas atomization powdering production equipment after cabin environment control is carried out on the inert gas atomization powdering production equipment: promoting atomized liquid drops to be cooled by using annular auxiliary gas and back-spraying argon to the bottom of an atomization cabin; and under inert gas protection, screening prepared spherical titanium alloypowder by adopting a cyclone separation technology. Qualified metal powder which meets a 3D printing process demand is prepared by means of the gas atomization technology, thereby providing powerfulguarantee for stable production of aerospace high-temperature-resistant structural members.

Description

technical field [0001] The invention relates to a preparation method of TA32 titanium alloy powder for 3D printing, belonging to the technical field of 3D printing. Background technique [0002] Heat-resistant titanium alloys are titanium alloys suitable for long-term work at higher temperatures. It has high instantaneous and sustained strength over the entire operating temperature range. It has good plasticity, good creep resistance and good thermal stability at room temperature. It has good fatigue resistance at room temperature and high temperature. It is mainly used to manufacture disks, blades, intake casings and aircraft structural parts in compressors. The heat-resistant titanium alloys that have been applied include solid solution-strengthened near-α-type and α+β-type titanium alloys. Near-α-type heat-resistant titanium alloys that work for a long time below 550°C all contain relatively high α-stable elements, almost all of which have an aluminum equivalent of mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/08B22F1/00C22C14/00B33Y70/00
CPCB22F9/082C22C14/00B33Y70/00B22F2009/0848B22F2009/088B22F2009/0896B22F1/065
Inventor 陈卓严雷鸣张群刘邦涛田操刘宝瑞邓姗姗
Owner AEROSPACE HIWING HARBIN TITANIUM IND
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