发明名称 |
PRODUCTION OF SUBSTANTIALLY SPHERICAL METAL POWDERS |
摘要 |
A method for producing a substantially spherical metal powder is described. A particulate source metal includes a primary particulate and has an average starting particle size. The particulate source metal is optionally ball milled and mixed with a binder in a solvent to form a slurry. The slurry is granulated to form substantially spherical granules, wherein each granule comprises an agglomeration of particulate source metal in the binder. The granules are debinded at a debinding temperature to remove the binder from the granules forming debinded granules. The debinded granules are at least partially sintered at a sintering temperature such that particles within each granule fuse together to form partially or fully sintered solid granules. The granules can then be optionally recovered to form a substantially spherical metal powder. |
申请公布号 |
US2017021425(A1) |
申请公布日期 |
2017.01.26 |
申请号 |
US201615234973 |
申请日期 |
2016.08.11 |
申请人 |
University of Utah Research Foundation |
发明人 |
Fang Zhigang Z.;Xia Yang;Sun Pei;Zhang Ying |
分类号 |
B22F9/04;B22F1/00;C01B6/02;B22F3/04;B22F3/16;B22F3/24;B22F3/10;B22F9/02 |
主分类号 |
B22F9/04 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing a substantially spherical metal or metal alloy powder comprising:
providing a particulate source metal including a primary particulate and having an average starting particle size; mixing the particulate source metal with a binder and an optional solvent to form a slurry; granulating the slurry to form substantially spherical granules, wherein each granule comprises an agglomeration of particulate source metal; debinding the granules at a debinding temperature to reduce a binder content of the granules forming debinded granules; at least partially sintering the debinded granules at a sintering temperature such that particles within each granule fuse together to form partially or fully sintered granules; recovering the sintered granules to form the substantially spherical metal or metal alloy powder. |
地址 |
Salt Lake City UT US |