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    WC-Fe复合粉末的制造方法使用液体中的脉冲放电过程

    公开(公告)号:KR1020120133407A

    公开(公告)日:2012-12-11

    申请号:KR1020110052010

    申请日:2011-05-31

    CPC classification number: C01G49/00 B01J19/08 C01B32/949 C01G41/006

    Abstract: PURPOSE: A manufacturing method of tungsten carbide-iron composite powder using pulsed wire discharge inside a liquid is provided to enhance stability, dispersibility, and mix uniformity of the tungsten carbide-iron composite powder. CONSTITUTION: A manufacturing method of tungsten carbide-iron composite powder using pulsed wire discharge inside a liquid comprises the following steps: manufacturing a suspension by mixing tungsten carbide powder with a fluid(s101); performing pulsed wire discharge in the suspension by using a metal wire(s103); evaporating the fluid inside the suspension of the previous step(s105); and heating the tungsten carbide-iron composite powder collected from the previous step(s107). In the suspension manufacturing step, the tungsten carbide powder has a surface charge by controlling the pH of the fluid. The pulsed wire discharge step is processed by providing a 0.5-20kV voltage for 1-60 seconds. The thermal processing step is processed at 600-700 deg. Celsius for 1-5 hours. [Reference numerals] (AA) Start; (BB) End; (S101) Manufacturing suspended solution; (S103) Pulsed wire discharging step; (S105) Drying step; (S107) Heat treating step

    Abstract translation: 目的:提供一种在液体内使用脉冲放电的碳化钨 - 铁复合粉末的制造方法,以提高碳化钨 - 铁复合粉末的稳定性,分散性和混合均匀性。 构成:在液体内使用脉冲放电的碳化钨 - 铁复合粉末的制造方法包括以下步骤:通过将碳化钨粉末与流体混合制造悬浮液(s101); 通过使用金属丝在悬架中进行脉冲线放电(s103); 蒸发前一步骤的悬浮液内的流体(s105); 并加热从上一步骤收集的碳化钨 - 铁复合粉末(s107)。 在悬浮液制造工序中,通过控制流体的pH,碳化钨粉末具有表面电荷。 脉冲放电步骤通过提供0.5-20kV的电压进行1-60秒的处理。 热处理步骤在600-700度处理。 摄氏1-5小时。 (附图标记)(AA)开始; (BB)结束; (S101)制造悬浮液; (S103)脉冲放电步骤; (S105)干燥步骤; (S107)热处理工序

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