发明名称 |
METHOD FOR PRODUCING POWDER FROM A GRANULAR, THERMOPLASTIC MATERIAL AND DEVICE FOR PRODUCING CHIPS FROM A POWDERY, THERMOPLASTIC MATERIAL |
摘要 |
A method for producing powder from a coarsely granular, thermoplastic material, comprising a homogenizing first device produces a first melt from a non-homogeneous pre-mixture of the material; first chips are produced from the first melt in a second device; the chips are milled to a powder; the powder is separated into at least two fractions with coarser and finer particle sizes; and a selected fraction with finer particle sizes is returned to the method prior to milling; wherein a second melt is produced from the selected fraction in a non-homogenizing third device, with second chips being produced from the latter, and the second chips are combined with the first chips and milled with each other. |
申请公布号 |
US2015145161(A1) |
申请公布日期 |
2015.05.28 |
申请号 |
US201314400923 |
申请日期 |
2013.04.29 |
申请人 |
BBA Innova AG |
发明人 |
Kirchhofer Urs |
分类号 |
B01J2/22 |
主分类号 |
B01J2/22 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing powder from a coarsely granular, thermoplastic material, comprising:
a homogenizing first device produces a first melt from a non-homogeneous pre-mixture of the material; first chips are produced from the first melt in a second device; the chips are milled to a powder; the powder is separated into at least two fractions with coarser and finer particle sizes; and a selected fraction with finer particle sizes is returned to the method prior to milling; wherein a second melt is produced from the selected fraction in a non-homogenizing third device, with second chips being produced from the latter, and the second chips are combined with the first chips and milled with each other. |
地址 |
Aarau CH |