Method of providing a particulate material

Patent metadata

Field	Value
Publication number	US-11806933-B2
Application number	US-201917309545-A
Country	US
Kind code	B2
Filing date	Dec 4, 2019
Priority date	Dec 5, 2018
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

A method of providing a particulate material from an at least substantially metallic and/or ceramic starting material, comprising the following steps:
(a) generating the particulate material from the starting material by vaporizing the starting material by introducing energy, preferably radiation energy, in particular by means of at least one laser, into the starting material and subsequently at least partially condensing the vaporized starting material, b) collecting the particulate material in at least one receiving and/or transporting device, in particular at least one container, c) receiving, in particular storing, and/or transporting the particulate material in the receiving and/or transporting device and/or in a further receiving and/or transporting device such that it can be used for a subsequent process, in particular in a state of at least non-permanent passivation, and d) providing the particulate material for the subsequent process.

First claim

The invention claimed is:

1. A method of providing a particulate material from an at least substantially metallic or ceramic starting material, the method comprising:
generating the particulate material from the starting material by vaporizing the starting material by introducing energy by at least one laser into the starting material and subsequently at least partially condensing the vaporized starting material,
collecting the particulate material in at least one receiving or transporting container,
receiving or transporting the particulate material in the receiving or transporting container or in a further receiving or transporting device such that it can be used for a subsequent process in a state of at least non-permanent passivation, wherein the subsequent process is a manufacturing process in which the particular material is used, and
providing the particulate material for the subsequent process.

2. The method for providing a particulate material according to claim 1 , wherein introducing energy includes vaporizing locally or in a grid-like manner, by at least one radiation source moving relative to an impact area and in a grid-like manner, or includes vaporizing by laser sintering.

3. The method for providing a particulate material according to claim 1 , wherein generating the particulate matter includes introducing the energy into a moving starting material in which the starting material is moved in a transport gas.

4. The method of providing a particulate material according to claim 1 , wherein the vaporized or condensed particulate material is passed to a material separation device, by which the particulate material is at least partially separated from a transport gas volume flow.

5. The method for providing a particulate material according to claim 1 , wherein the starting material is substantially particulate, and wherein the particles of the starting material have a mean particle size of 1 μm to 100 μm.

6. The method for providing a particulate material according to claim 1 , wherein the starting material comprises at least one metal, in particulate form, including
at least one catalytically active metal or
at least one electrochemically active metal or
at least one pyrophoric metal, or
Al, Fe, Ti, Ni, Co, Pt, Ag, Pd, Sc, Au, Zn, Zr, Mg, V, Si, Cu, Mn, W or Cr.

7. The method of providing a particulate material according to claim 1 , wherein generating the particulate material includes using a manufacturing device configured to produce an object by applying a build-up material comprising at least substantially metallic or ceramic components layer upon layer and selectively solidifying the build-up material, by supplying radiation energy, at locations in each layer associated with a cross-section of the object in that layer.

Assignees

• Eos Gmbh Electro Optical Systems

Inventors

• Pawliczek Sven
• Kleinhans Ulrich
• Christ Marius

Classifications

• B01J35/45

  Nanoparticles · CPC title

• B29C64/314 Primary

  Preparation · CPC title

• B01J23/868

  copper and chromium · CPC title

• B01J23/883

  and nickel · CPC title

• B01J35/0013

  Operations & Transport · mapped topic