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A kind of method for preparing cucrzr spherical powder based on viga process

A spherical and crafted technology, applied in the field of metal powder metallurgy, can solve complex problems, achieve uniform distribution, reduce production costs, and reduce mass flow rate

Active Publication Date: 2022-05-17
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method of CuCrZr alloy spherical powder designed by the present invention is based on meeting the raw material requirements of metal additive manufacturing, and the VIGA process is used to prepare powder to solve the problem of localization of raw materials for additive manufacturing of advanced copper alloy complex cooling structural parts of aerospace engines.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing CuCrZr spherical powder based on VIGA process, comprising the following steps:

[0027] (1) Smelting according to the ratio of each element and its addition method, and then forging after pouring to obtain a CuCrZr rod blank with a relative density ≥ 90%: according to the mass fraction, the mass fraction of each chemical component in the CuCrZr rod blank The ratio is: Cr: 1.2%; Zr: 0.15%; Cu: balance; CuCrZr rod blank surface has no obvious porosity and shrinkage cavity defects;

[0028] (2) Process CuCrZr alloy bars that meet the feeding size requirements of vacuum induction melting furnaces with sawing machines and lathes: the diameter of CuCrZr alloy bars is 50 mm, the length is 600 mm, and the surface roughness is 1.6 μm;

[0029](3) Place the CuCrZr alloy rod in the furnace crucible to melt it, stir it by electromagnetic induction, pre-vacuumize the whole set of equipment, and then fill it with inert protective gas: put the CuCrZr alloy rod i...

Embodiment 2

[0039] A method for preparing CuCrZr spherical powder based on VIGA process, comprising the following steps:

[0040] (1) Smelting according to the ratio of each element and its addition method, and then forging after pouring to obtain a CuCrZr rod blank with a relative density ≥ 90%: according to the mass fraction, the mass fraction of each chemical component in the CuCrZr rod blank The ratio is: Cr: 0.7%; Zr: 0.065%; Cu: balance; CuCrZr rod blank surface has no obvious porosity and shrinkage cavity defects;

[0041] (2) Process CuCrZr alloy bars that meet the feeding size requirements of vacuum induction melting furnaces with sawing machines and lathes: CuCrZr alloy bars have a diameter of 40 mm, a length of 300 mm, and a surface roughness of ≤ 1.5 μm;

[0042] (3) Place the CuCrZr alloy rod in the furnace crucible to melt it, stir it by electromagnetic induction, pre-vacuumize the whole set of equipment, and then fill it with inert protective gas: put the CuCrZr alloy rod i...

Embodiment 3

[0052] A method for preparing CuCrZr spherical powder based on VIGA process, comprising the following steps:

[0053] (1) Smelting according to the ratio of each element and its addition method, and then forging after pouring to obtain a CuCrZr rod blank with a relative density ≥ 90%: according to the mass fraction, the mass fraction of each chemical component in the CuCrZr rod blank The ratio is: Cr: 1%; Zr: 0.1%; Cu: balance; CuCrZr rod blank surface has no obvious porosity and shrinkage cavity defects;

[0054] (2) Process CuCrZr alloy bars that meet the feeding size requirements of vacuum induction melting furnaces with sawing machines and lathes: the diameter of CuCrZr alloy bars is not greater than 50 mm, the length is 400 mm, and the surface roughness is ≤ 1.6 μm;

[0055] (3) Place the CuCrZr alloy rod in the furnace crucible to melt it, stir it by electromagnetic induction, pre-vacuumize the whole set of equipment, and then fill it with inert protective gas: put the C...

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Abstract

A method for preparing CuCrZr spherical powder based on a VIGA process, comprising the following steps: (1) melting according to the ratio of each element and its addition method, and then forging after pouring to obtain a CuCrZr rod blank; (2) processing CuCrZr (3) Place the CuCrZr alloy bar in the crucible of the furnace to melt it, then stir it by electromagnetic induction, pre-vacuumize the whole set of equipment, and then fill it with inert protective gas; (4) melt the alloy through the guide tube The liquid is introduced into the atomization chamber, and the alloy melt is atomized and broken into a large number of fine droplets, which solidify into spherical powder particles during the flight; (5) CuCrZr spherical powder is obtained through the powder collection device, and the powder is sieved as required after the powder is completely cooled. Divide and vacuum pack. The preparation method of the CuCrZr alloy spherical powder designed by the present invention is based on meeting the raw material requirements of metal additive manufacturing, and the VIGA process is used to prepare powder to solve the problem of localized preparation of raw materials for additive manufacturing of advanced copper alloy complex cooling structural parts of aerospace engines.

Description

technical field [0001] The invention belongs to the field of metal powder metallurgy and relates to a copper alloy raw material preparation technology suitable for metal additive manufacturing, in particular to a method for preparing CuCrZr spherical powder based on a VIGA process. Background technique [0002] Launcher, an American aerospace start-up engaged in the manufacture and launch of small rockets, tested copper alloy rocket engine components. This is a 3D printed copper alloy (CuCrZr) engine component that integrates complex cooling channels, a design that will improve engine cooling efficiency. In CuCrZr alloys, Cr is the main strengthening element. Cr in the alloy is not only beneficial to prevent the formation of coarse precipitates, but also strengthens the matrix. Zr helps to obtain finer and uniform precipitate particles to increase the strengthening effect and inhibit Cracking along the crystal to increase alloy ductility. CuCrZr alloy is a copper alloy mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/08B22F1/065B33Y70/00C22C9/00
CPCB22F9/082C22C9/00B33Y70/00B22F2009/088B22F1/065
Inventor 李小阳庾高峰张航武旭红王文斌马明月吴斌王聪利
Owner SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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