发明名称 |
СПОСОБ ПОЛУЧЕНИЯ ПОРОШКА ИЗ ТВЕРДОГО СПЛАВА |
摘要 |
A hard metal granulate is produced by wet milling and spray drying in a spray tower using pure water as the liquid phase. The spray tower is configured and operated in such a way that a ratio of the quantity of water added via the slurry (in liters per hour) to tower volume (in m<3>) is between 0.5 and 1.8 and in that a maximum of 0.17 kg of slurry is atomized per m<3 >of incoming drying gas. The slurry has a solid particle concentration within a range of 65-85% by weight. Under these conditions, the addition of a water-soluble, long-chain polyglycol to the slurry prior to spraying previously required in order to prevent oxidation of the hard metal granulate is no longer necessary. |
申请公布号 |
RU2003131683(A) |
申请公布日期 |
2005.02.10 |
申请号 |
RU20030131683 |
申请日期 |
2002.03.08 |
申请人 |
ЦЕРАТИЦИТ АУСТРИА ГЕЗЕЛЛЬШАФТ М.Б.Х. (AT) |
发明人 |
КНЮНЦ Герхард (AT);БАЙРЕР Хельмут (AT);ЛАКНЕР Андреас (AT);ГЛЕТЦЛЕ Вольфганг (AT);ХАРТЛЬМАЙР Эрвин (AT) |
分类号 |
B22F1/00;B22F9/02;B22F9/04;C22C1/05;C22C29/08 |
主分类号 |
B22F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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