公开(公告)号：US09421612B2

公开(公告)日：2016-08-23

申请号：US14950346

申请日：2015-11-24

Applicant: University of Utah Research Foundation

Inventor： Zhigang Z Fang ,  Yang Xia ,  Pei Sun ,  Ying Zhang

IPC: B22F3/10 ,  B22F9/04 ,  B22F1/00 ,  B22F3/105 ,  B22F3/15 ,  B22F3/22 ,  B22F9/00

CPC classification number: B22F9/04 ,  B22F1/0003 ,  B22F1/0011 ,  B22F1/0048 ,  B22F1/0059 ,  B22F1/0096 ,  B22F3/04 ,  B22F3/1021 ,  B22F3/1055 ,  B22F3/15 ,  B22F3/16 ,  B22F3/225 ,  B22F3/24 ,  B22F9/026 ,  B22F2003/244 ,  B22F2009/001 ,  B22F2009/043 ,  B22F2201/11 ,  B22F2301/052 ,  B22F2301/15 ,  B22F2301/20 ,  B22F2301/205 ,  B22F2301/35 ,  B22F2302/45 ,  B22F2304/10 ,  B22F2304/15 ,  B22F2998/10 ,  B22F2999/00 ,  C01B6/02 ,  Y02P10/24 ,  Y02P10/295 ,  B22F1/0074 ,  B22F3/1025

Abstract: 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.

Abstract translation: 描述了一种生产基本上球形的金属粉末的方法。 颗粒源金属包括初级颗粒并且具有平均起始粒度。 颗粒源金属任选地被球磨并与粘合剂在溶剂中混合以形成浆料。 将浆料造粒形成基本上为球形的颗粒，其中每个颗粒包含颗粒源金属在粘合剂中的聚集。 在脱脂温度下将颗粒脱粘，从形成脱模颗粒的颗粒中除去粘合剂。 脱模的颗粒在烧结温度下至少部分烧结，使得每个颗粒内的颗粒熔合在一起以形成部分或完全烧结的固体颗粒。 然后可以任选地回收颗粒以形成基本上为球形的金属粉末。