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    • 1. 发明公开
    • 자전 고온 합성법을 이용한 TiCuCo 합금 분말용잉곳의 제조방법
    • 使用自发高温合成生产钛铁合金粉
    • KR1020010078526A
    • 2001-08-21
    • KR1019990068200
    • 1999-12-31
    • 주식회사 캄테크놀로지
    • 김용석김래은임동수정인범
    • C22C1/02
    • PURPOSE: A process for preparing an alloy ingot by heating Ti, Cu, Co mixed powder at ignition temperature in which high temperature synthesis starts and melting with self-propagating synthetic reaction heat without supplying separate heat from outwards is provided, which increases productivity of a cutting tool and reduces the cost of production. CONSTITUTION: A mixture of 50 to 80% by weight of Ti, 10 to 35% by weight of Cu and 5 to 25% by weight of Co powder is heated at 700 to 1,000deg.C in a temperature speed of 100deg.C/min or more and melting with self-propagating synthetic reaction heat without supplying separate heat from outwards. The mixture is obtained by a mechanical mixing method for milling using a steel ball for 4 hr or more in a steel vial or ball milling method for milling using stainless for 12 hr or more.
    • 目的:提供一种通过在高温合成起始温度和自蔓延合成反应热而熔融的点火温度下加热Ti,Cu,Co混合粉末而不向外提供单独热量来制备合金锭的方法,这提高了生产率 切割工具,降低生产成本。 构成:将50〜80重量%的Ti,10〜35重量%的Cu和5〜25重量%的Co粉末的混合物在100〜100℃的温度下加热至700〜1000℃, 分钟或更长时间,并且自发扩散的合成反应热不会从外部提供单独的热量。 混合物通过机械混合方法获得,使用钢球在钢瓶中研磨4小时以上,或使用不锈钢研磨12小时以上的球磨法。
    • 2. 发明公开
    • 자전고온 합성법을 이용한 질화 알루미늄 분말 제조방법
    • 通过自发传播高温合成法制备氮化铝粉的方法
    • KR1020020023570A
    • 2002-03-29
    • KR1020000055941
    • 2000-09-23
    • 주식회사 캄테크놀로지
    • 김용석임동수김래은조종묵정인범
    • C01B21/06
    • C01B21/0722
    • PURPOSE: A method for preparing aluminum nitride powder with high purity and chemical stability by self-propagating high temperature synthesis is provided. CONSTITUTION: The preparation method of aluminum nitride powder includes the steps of (i) mixing 30-80wt.% of metal aluminum powder with a particle size of less than 100μm with 20-70wt.% of aluminum nitride until its density reaches 20-50% of theoretical density; (ii) keeping the reaction system under a nitrogen atmosphere ranging from 1 to 50 atm; (iii) by applying high voltage to a hot wire, elevate the temperature of a mixture of metal aluminum powder and aluminum nitride powder to a temperature where self-propagating high temperature synthesis start; and (iv) crushing obtained aluminum nitride lump. In the first step, 1-40wt.% of a mixture containing carbon powder, halogen compounds of 1 group, 2 group, and 3 group or their hydrate is further added, based on the total weight of the mixture.
    • 目的:提供通过自蔓延高温合成制备高纯度和化学稳定性的氮化铝粉末的方法。 构成:氮化铝粉末的制备方法包括以下步骤:(i)将30-80重量%的粒径小于100μm的金属铝粉末与20-70重量%的氮化铝混合直到其密度达到20-50 理论密度的百分比; (ii)将反应体系保持在1〜50个大气压的氮气氛下; (iii)通过向热丝施加高电压,将金属铝粉末和氮化铝粉末的混合物的温度升高到自蔓延高温合成开始的温度; 和(iv)粉碎获得的氮化铝块。 在第一步中,基于混合物的总重量,进一步加入含有碳粉末,1组,2组和3组卤素化合物或其水合物的1-40重量%的混合物。
    • 4. 发明授权
    • 자전고온 합성법을 이용한 질화 알루미늄 분말 제조방법
    • 자전고온합성법을이용한질화알루미늄분말제조방
    • KR100386510B1
    • 2003-06-02
    • KR1020000055941
    • 2000-09-23
    • 주식회사 캄테크놀로지
    • 김용석임동수김래은조종묵정인범
    • C01B21/06
    • PURPOSE: A method for preparing aluminum nitride powder with high purity and chemical stability by self-propagating high temperature synthesis is provided. CONSTITUTION: The preparation method of aluminum nitride powder includes the steps of (i) mixing 30-80wt.% of metal aluminum powder with a particle size of less than 100μm with 20-70wt.% of aluminum nitride until its density reaches 20-50% of theoretical density; (ii) keeping the reaction system under a nitrogen atmosphere ranging from 1 to 50 atm; (iii) by applying high voltage to a hot wire, elevate the temperature of a mixture of metal aluminum powder and aluminum nitride powder to a temperature where self-propagating high temperature synthesis start; and (iv) crushing obtained aluminum nitride lump. In the first step, 1-40wt.% of a mixture containing carbon powder, halogen compounds of 1 group, 2 group, and 3 group or their hydrate is further added, based on the total weight of the mixture.
    • 目的:提供一种通过自蔓延高温合成制备高纯度和化学稳定性的氮化铝粉末的方法。 组成:氮化铝粉末的制备方法包括以下步骤:(i)将30-80wt。%的粒度小于100μm的金属铝粉与20-70wt。%的氮化铝混合,直至其密度 达到理论密度的20-50%; (ii)将反应体系保持在1至50atm的氮气氛下; (iii)通过对热丝施加高电压,将金属铝粉末和氮化铝粉末的混合物的温度升高到开始自蔓延高温合成的温度; 和(iv)粉碎得到的氮化铝块。 在第一步中,基于混合物的总重量,进一步加入1-40重量%的含有碳粉,1组,2组和3组卤素化合物或其水合物的混合物。