发明授权
- 专利标题: Process of producing fine spherical particles
- 专利标题(中): 生产细球形颗粒的方法
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申请号: US904316申请日: 1986-09-08
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公开(公告)号: US4756746A公开(公告)日: 1988-07-12
- 发明人: Preston B. Kemp, Jr. , Walter A. Johnson
- 申请人: Preston B. Kemp, Jr. , Walter A. Johnson
- 申请人地址: CT Stamford
- 专利权人: GTE Products Corporation
- 当前专利权人: GTE Products Corporation
- 当前专利权人地址: CT Stamford
- 主分类号: B22F1/00
- IPC分类号: B22F1/00 ; C03B19/10 ; C04B35/653
摘要:
A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of spherical particles selected from the group consisting of metals, metal alloys, ceramic glasses, crystalline ceramic materials, and combinations of these. The material is essentially free of elliptical shaped material and elongated particles having rounded ends. The material has a particle size of less than about 20 micrometers. The process for making the spherical particles involves mechanically reducing the size of a starting material to produce a finer powder the major portion of which has a particle size of less than about 20 micrometers. The finer powder is entrained in a carrier gas and passed through a high temperature zone at a temperature above the melting point of the powder to melt at least about 50% of the powder and form the spherical particles of the melted portion. The powder is then directly solidifed.
公开/授权文献
- US5497269A Dispersive microlens 公开/授权日:1996-03-05
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