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标题翻译：粉末材料和合成材料的合成装置和方法

公开(公告)号：WO2016071832A1

公开(公告)日：2016-05-12

申请号：PCT/IB2015058486

申请日：2015-11-03

申请人： GENICORE SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA

发明人： ROSINSKI MARCIN

IPC分类号： C04B35/645 , B22F3/105 , B23H1/00

CPC分类号： C04B35/645 , B22F3/1028 , B22F3/105 , B22F3/16 , B22F2003/1051 , B22F2201/20 , B23H1/00 , B30B11/02 , B30B11/027 , B30B15/34 , C04B2235/666

摘要： The object of the invention is a method of consolidation of powder materials by means of a device provided with a gastight operating chamber (1), a press connected (11) to a first electrode (3) and to a second electrode (6), wherein between the electrodes there is located in a die (4) the consolidated powder (5), wherein the press (11) exerts pressure on the consolidated powder with the first electrode (3) and the second electrode (6). To the first electrode (3) and the second electrode (6) there is connected a circuit comprising a power supply unit (9) so that the flow of current provided by the power supply unit (9) is closed through the first electrode (3) and the second electrode (6), and the consolidated powder (5). Simultaneously, the consolidated powder (5) is subjected to pressure and stimulated by current pulses. The voltage applied to the powder (5) in pulse peak fits within the range of 50 V to 900 V, and pulse duration is shorter than 300 ]is. The consolidation of powder (5) is performed in at least two steps. In the first step a pressure of the press (11) corresponding to pressure on the powder (5) within the range of 2 MPa to 15 MPa is applied, while the values of pulse current, pulse duty cycle and repetition frequency are chosen such that the temperature of the powder was constantly in the range of 0.05 do 0.3 of melting temperature of the powder. In the second step a pressure of the press (11) corresponding to pressure on the powder (5) within the range of 15 MPa to 200 MPa is applied, while the values of pulse current, pulse duty cycle and repetition frequency are chosen such that the temperature of the powder (5) was constantly in the range of 0.6 to 0.9 of melting temperature of the powder (5). Furthermore, the object of the invention is a device for consolidation of powder materials, provided with a gastight operating chamber (1), a press (11) connected to a first electrode (3) and to a second electrode (6), wherein between the electrodes there is located in a die (4) the consolidated powder (5), wherein the press (11) exerts pressure on the consolidated powder with the first electrode (3) and the second electrode (6), wherein to the first electrode (3) and the second electrode (6) there is connected a circuit comprising a power supply unit (9) and switching means so that the flow of current provided by the power supply unit (9) is closed through the first electrode (3) and the second electrode (6), the consolidated powder (5) and the switching means. Furthermore, the device is provided with a vacuum pump and means for measuring the temperature (8) of the consolidated powder. Furthermore, the voltage of the power supply unit (9) is within the range of 50 V to 900 V, and the switching means are configured to close the current flow path for a time shorter than 300 μs. A substance according to the invention is a result of consolidation of the substance comprising at least one of the group including A1203, SiC, Si3N4, WC, Ta, ReB2, Zr02, TiC, TiN using the method according to the invention.

摘要翻译：本发明的目的是通过设置有气密操作室（1），压力机（11）连接到第一电极（3）和第二电极（6）的装置来固定粉末材料的方法，其中在所述电极之间位于所述固化粉末（5）的模具（4）中，其中所述压力机（11）用所述第一电极（3）和所述第二电极（6）对所述固体粉末施加压力。向第一电极（3）和第二电极（6）连接包括电源单元（9）的电路，使得由电源单元（9）提供的电流通过第一电极（3）封闭）和第二电极（6），以及固化粉末（5）。同时，固化粉末（5）受到压力并被电流脉冲刺激。以脉冲峰值施加到粉末（5）的电压适合在50 V至900 V的范围内，脉冲持续时间短于300]。粉末（5）的固结至少两步进行。在第一步骤中，施加对应于粉末（5）上的压力的压力（11）在2MPa至15MPa的范围内的压力，同时选择脉冲电流，脉冲占空比和重复频率的值使得粉末的温度恒定在粉末熔化温度的0.05〜0.3的范围内。在第二步骤中，施加对应于粉末（5）上的压力在15MPa至200MPa范围内的压力机（11）的压力，同时选择脉冲电流，脉冲占空比和重复频率的值使得粉末（5）的温度恒定在粉末（5）的熔融温度的0.6〜0.9的范围内。此外，本发明的目的是一种用于固结粉末材料的装置，其具有气密操作室（1），连接到第一电极（3）和第二电极（6）的压力机（11），其中介于其中电极位于模具（4）中的固化粉末（5）中，其中压力机（11）用第一电极（3）和第二电极（6）对固化的粉末施加压力，其中对第一电极（3）和第二电极（6）连接有包括电源单元（9）和开关装置的电路，使得由电源单元（9）提供的电流通过第一电极（3）闭合，和第二电极（6），固化粉末（5）和切换装置。此外，该装置设置有真空泵和用于测量固化粉末的温度（8）的装置。此外，电源单元（9）的电压在50V至900V的范围内，并且开关装置被配置为将电流流路关闭短于300μs的时间。根据本发明的物质是使用本发明的方法使包含Al 2 O 3，SiC，Si 3 N 4，WC，Ta，ReB 2，ZrO 2，TiC，TiN中的至少一种的物质固结的结果。

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