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    • 4. 发明公开
    • 알에프 플라즈마 연소기술에 의한 나노 엠피피 분말 제조방법
    • 使用射频等离子体燃烧制备纳米MPP粉末的方法
    • KR1020070066545A
    • 2007-06-27
    • KR1020050127870
    • 2005-12-22
    • 주식회사 포스코재단법인 포항산업과학연구원
    • 박언병최승덕변갑식이영주박종일양충진손영근
    • B82B3/00B82Y40/00
    • B22F9/04B22F9/082B22F2009/0836B22F2202/13B22F2304/054B82Y30/00B82Y40/00
    • A method for preparing nano-MPP(Moly-Permalloy) powder from micro MPP powder is provided to produce the nano-MPP powder useful for thermal isolation and manufacturing functional film or ultra thinner film type pad with thermal isolation by using RF plasma combustion technique to shield harmful electromagnetic wave and magnetic field. The method includes: first step of feeding MPP powder to an RF plasma torch through a nozzle; second step of regulating flow rate, speed and gas of the gas inputted into the torch part after generating the RF plasma by controlling RF plasma power; third step of heating the content of the torch to evaporate or dissolve the MPP powder; fourth step of generating nano-MPP powder by condensing or quenching the MPP powder with a quenching gas; fifth step of selecting larger nano-particles from the nano-MPP powder then collecting the separated particles through a filter; and sixth step of recovering nano-MPP powder by back-flushing the nano-powder adsorbed to external wall of the filter.
    • 提供了一种从微MPP粉末制备纳米MPP(Moly-Permalloy)粉末的方法,用于制备用于热隔离和制造功能膜的纳米MPP粉末或使用RF等离子体燃烧技术进行热隔离的超薄膜型垫 屏蔽有害的电磁波和磁场。 该方法包括:通过喷嘴将MPP粉末供给RF等离子体焰炬的第一步骤; 通过控制RF等离子体功率来调节在产生RF等离子体之后调节输入到割炬部分的气体的流速,速度和气体的第二步骤; 加热火炬内容物以蒸发或溶解MPP粉末的第三步骤; 通过用淬火气体冷凝或淬火MPP粉末来生成纳米MPP粉末的第四步骤; 从纳米MPP粉末中选择更大的纳米颗粒的第五步,然后通过过滤器收集分离的颗粒; 以及通过反向冲洗吸附在过滤器外壁上的纳米粉末来回收纳米MPP粉末的第六步骤。
    • 7. 发明公开
    • 고주파 플라즈마를 이용한 은나노 분말 제조방법
    • 通过RF PLASMAP制备银纳米粒子的方法
    • KR1020070067794A
    • 2007-06-29
    • KR1020050129038
    • 2005-12-23
    • 주식회사 포스코재단법인 포항산업과학연구원
    • 박종일최승덕변갑식양충진손영근박언병이영주
    • B82B3/00B82Y40/00
    • B22F9/04B22F9/082B22F2009/0836B22F2202/13B22F2301/255B22F2304/054B82Y30/00B82Y40/00
    • A method for mass production of high purity silver nano powder is provided to be used in fabricating anti-microbial film with electromagnetic wave shielding effect by generating RF(radio frequency) plasma in a chamber under inert gas atmosphere and introducing micro silver powder thereto and carrying out evaporation and condensation thereof. The method includes the steps of: spraying micro silver powder together with inert carrier gas through a nozzle at top of a housing(11) of a plasma torch(10) in which an induction coil(12) is embedded; feeding central gas and shield gas containing the inert gas to inner and outer sides of a tube(13) which spatially separates the nozzle and the housing(11) by forming the tube to enclose the nozzle; and adsorbing plasma treated silver nano particles to a filter along a flow line equipped with a cyclon. The shield gas is a combination of the inert gas and hydrogen gas. The carrier gas contains 50-40slpm of inert gas, the central gas contains 5-40slpm of inert gas, and the shield gas contains 10-120slpm of inert gas and 10-50slpm of hydrogen.
    • 提供大量生产高纯度银纳米粉末的方法,用于制造具有电磁波屏蔽作用的抗微生物膜,通过在室内在惰性气体气氛下产生RF(射频)等离子体,并向其中引入微银粉末并携带 蒸发和冷凝。 该方法包括以下步骤:将微银粉与惰性载气一起喷射通过其中嵌入有感应线圈(12)的等离子体焰炬(10)的壳体(11)的顶部; 将含有惰性气体的中央气体和保护气体供给到管(13)的内侧和外侧,通过形成管以封闭喷嘴而空间地分离喷嘴和壳体(11); 并沿着配备有旋风分离器的流动线将等离子体处理的银纳米颗粒吸附到过滤器中。 保护气体是惰性气体和氢气的组合。 载气含有50-40slpm的惰性气体,中心气体含有5-40slpm的惰性气体,保护气体含有10-120slpm的惰性气体和10-50slpm的氢气。