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    • 2. 发明公开
    • Fe계 소결합금
    • FE基烧结合金
    • KR1020070112875A
    • 2007-11-27
    • KR1020077024043
    • 2006-03-17
    • 도요타 지도샤(주)
    • 안도기미히코다니노히토시
    • C22C33/02C22C38/00
    • C22C38/02C22C33/0271C22C33/0278
    • An iron-based sintered alloy produced through a mixing step (S16) in which an iron-manganese alloy powder, graphite powder, and iron powder are mixed together by means of a mixer, a compacting step (S18) in which the powder mixture is pressed at a given pressure to compact it, and a sintering step (S20) in which the resultant compact is sintered in a sintering oven at a given temperature for a given time, characterized in that the iron-manganese alloy powder contains 2-30 mass% manganese. In particular, the mixing step (S16) comprises mixing 5-50 mass% iron-manganese alloy powder, 0.2-2 mass% graphite powder, and an iron powder as the remainder by means of a mixer. Thus, mechanical strength can be further improved.
    • 通过混合步骤(S16)制备的铁基烧结合金,其中通过混合器将铁锰合金粉末,石墨粉末和铁粉混合在一起,将粉末混合物为粉末混合物的压实步骤(S18) 在给定压力下压制以压实它;以及烧结步骤(S20),其中所得成型体在烧结炉中在给定温度下烧结给定时间,其特征在于,铁锰合金粉末含有2-30质量% %锰。 特别地,混合工序(S16)通过混合器将5-50质量%铁锰合金粉末,0.2-2质量%石墨粉末和铁粉末作为剩余物混合。 因此,可以进一步提高机械强度。
    • 4. 发明公开
    • Deep mixing method using soil improvement boring machine equipped with soil and rock boring tool
    • 使用土壤和岩石钻孔工具的土壤改良镗床的深度混合方法
    • KR20120064246A
    • 2012-06-19
    • KR20100125388
    • 2010-12-09
    • CHUNG MYUNG JUN
    • CHUNG MYUNG JUN
    • E02D3/12E02D3/00E21B3/02E21B7/02
    • E02D3/126C22C33/0271C22C38/00E21B3/02E21B4/06
    • PURPOSE: An excavation apparatus for ground improvement with excavation equipment for boring the ground and bedrock and a deep mixing method using the same are provided to reduce the abrasion of excavation equipment and to extend the service life of the excavation equipment. CONSTITUTION: An excavation apparatus for ground improvement with excavation equipment for boring the ground and bedrock is composed as follows. When an excavation rod excavates the ground or bedrock(1), one or more of an air hammer, a toenail bit, and a bullet bit excavate the ground or bedrock. When the ground or bedrock is excavated, stirring blades installed on the excavation rod stir a solidifying solution with surrounding matter to form a solidified column body and a solidified column wall.
    • 目的:提供一种挖掘设备,用于对地面和基岩进行钻孔的开挖设备,并采用相同的深度混合方法,以减少挖掘设备的磨损,延长挖掘设备的使用寿命。 构成:用于地面和基岩钻孔的挖掘设备的地面开挖挖掘装置如下。 当挖掘杆挖掘地面或基岩(1)时,一个或多个气锤,趾甲钻头和子弹钻头挖掘地面或基岩。 当挖掘地面或基岩时,安装在挖掘杆上的搅拌叶片用周围的物质搅拌固化溶液,形成凝固的柱体和凝固的柱壁。
    • 6. 发明公开
    • Fe-Si 합금분말을 이용한 SMD 코아 제조방법
    • 使用Fe-Si合金粉末制造SMD芯的方法
    • KR1020040042214A
    • 2004-05-20
    • KR1020020070389
    • 2002-11-13
    • 휴먼일렉스(주)
    • 김규진박진영정준호정경우
    • B22F3/02
    • C22C33/0271B22F1/0059B22F1/0062B22F2003/248B22F2998/00B22F2998/10C22C33/0278H01F1/14766H01F1/26H01F3/08H01F17/043H01F27/027H01F27/292H01F41/0246H01F2017/048B22F3/02B22F3/24
    • PURPOSE: A method for manufacturing SMD core using Fe-Si alloy powder is provided to obtain superior magnetic characteristics in a high frequency band, manufacture SMD core having superior saturation magnetic flux density and effective permeability and commercially produce SMD core at low raw material or process cost. CONSTITUTION: The method comprises a coating process of uniformly coating the binder on the surface of the alloy powder by mixing a binder dissolved into organic solvent or water with Fe-Si alloy powder comprising 90 to 97 wt.% of Fe and 2 to 10 wt.% of Si; and a press molding process of molding an SMD core by pressing the coated alloy powder to a molding pressure of 15 ton/cm¬2 or less, wherein the method further comprises a heat treatment process of heat treating the press molded SMD core in the temperature range of 400 to 800 deg.C at a non-oxidative or reductive gas atmosphere for 10 to 120 minutes, and wherein polyimide or water glass is used as the binder, and content of the binder is 0.2 to 2.0 wt.% for the total weight of binder and Fe-Si alloy powder.
    • 目的:提供使用Fe-Si合金粉末制造SMD芯片的方法,以在高频带中获得优异的磁特性,制造具有优异饱和磁通密度和有效磁导率的SMD芯,并在低原材料或工艺下商业生产SMD芯 成本。 方法:该方法包括通过将溶解在有机溶剂或水中的粘合剂与包含90-97重量%的Fe和2-10重量%的Fe-Si合金粉末混合来在合金粉末的表面上均匀地涂布粘合剂的涂布方法 。%的Si; 以及通过将涂覆的合金粉末压制成15ton / cm 2以下的成型压力来成型SMD芯的压制成型工序,其中,所述方法还包括在所述压制成型的SMD芯体的温度下热处理的热处理工序 在非氧化或还原性气体气氛下进行10〜120分钟的范围为400〜800℃,其中使用聚酰亚胺或水玻璃作为粘合剂,粘合剂的含量为0.2〜2.0重量% 粘合剂和Fe-Si合金粉末的重量。