公开(公告)号：KR100334434B1

公开(公告)日：2002-05-03

申请号：KR1019990043498

申请日：1999-10-08

Applicant: 한국과학기술연구원

Inventor： 유명기 ,  고흥석 ,  장준연 ,  문인기

IPC: G12B17/00

Abstract: 본발명은고투자율의금속섬유를사용하여형성되는전자파차폐재및 그제조방법에관한것으로, 고투자율의금속섬유를다른매트릭스물질에분산시켜복합재료나고투자율의금속섬유가분산된중간층이한층이상삽입되어얇은막이겹쳐있는라미네이트구조의다층복합재료를제공하며, 또한고투자율의금속섬유가분산된중간층이한층이상삽입되어얇은막이겹쳐있는라미네이트구조의전자파차폐재및 고투자율의특성을갖는합금을급냉응고법을이용하여금속섬유로제조하고, 상기금속섬유를진동하고있는시브를통과시켜시트의표면에균일하게분산함으로써상기시트위에금속섬유층을형성하고, 상기의금속섬유층의다른면에대하여또 다른시트를맞닿게하고, 금속섬유의양면에맞닿은두 시트를압축하여두 시트사이를밀착시키는것으로이루어지는고투자율의금속섬유층이삽입된라미네이트구조의전자파차폐재제조방법을제공한다. 본발명에의하면경제적인방법으로지구자계또는 PC 모니터, 통신기기, 오디오, 비디오등 전자시스템에서발생하는전자기파의환경으로부터인체를보호하고전자기기의성능을보존하는것이가능하다.

公开(公告)号：KR1020010009108A

公开(公告)日：2001-02-05

申请号：KR1019990027290

申请日：1999-07-07

Applicant: 한국과학기술연구원

Inventor： 고흥석 ,  유명기 ,  장준연 ,  문인기

IPC: B22F9/08

Abstract: PURPOSE: A method for producing spherical powder is provided to reduce a producing cost with a simple process as well as to have regular particle grading without a charging plate. CONSTITUTION: An alloy with less than 500 deg.C of low melting temperature is molten and inert gas is sprayed to the molten alloy in a linear shape through a nozzle(2). A linear shaped molten alloy(4) is contacted with an organic material(5) to generate a perturbation phenomenon(7) on the surface of the linear shaped molten alloy. Thus, the line of a droplet(8) is created and solidified by surface tension to be spherical powder(9). The alloy with low melting temperature is Pb-Sn, Pb-Ag, Pb-Sn-Bi, Au-Sn, Sn-Sb, Sn-Cu, Sn-Zn, Sn-Ag, In-Ag, Sn-Bi, Sn-In and so on. The diameter of the nozzle is 0.1 to 0.5 mm and the distance between the nozzle and organic liquid is 10 to 300 cm or desirably 10 to 100 cm. The inert gas is Ar or nitrogen and organic liquid is ethanol, glycol, glycerol or polydemethylsiloxane.

Abstract translation: 目的：提供一种制造球形粉末的方法，以简单的方法降低生产成本，并且在没有充电板的情况下具有规则的颗粒分级。 构成：低熔点温度低于500℃的合金是熔融的，惰性气体通过喷嘴（2）以直线状喷射到熔融合金上。 线性熔融合金（4）与有机材料（5）接触以在线状熔融合金的表面上产生扰动现象（7）。 因此，通过表面张力产生并固化液滴（8）的线，以形成球形粉末（9）。 低熔点合金是Pb-Sn，Pb-Ag，Pb-Sn-Bi，Au-Sn，Sn-Sb，Sn-Cu，Sn-Zn，Sn-Ag，In-Ag，Sn-Bi，Sn - 等等。 喷嘴的直径为0.1〜0.5mm，喷嘴与有机液体之间的距离为10〜300cm，优选为10〜100cm。 惰性气体为Ar或氮气，有机液体为乙醇，乙二醇，甘油或聚二甲基硅氧烷。

公开(公告)号：KR100414160B1

公开(公告)日：2004-01-07

申请号：KR1020000060785

申请日：2000-10-16

Applicant: 한국과학기술연구원

Inventor： 김재수 ,  윤진국 ,  고흥석 ,  이종권 ,  이정문 ,  김두용

IPC: B22F8/00

CPC classification number: Y02P10/24 ,  Y02W30/541

Abstract: PURPOSE: A method is provided to manufacture a sintered porous stainless steel sheet with gradient pore structures having superior filtering and sound absorption effects using waste byproducts generated when manufacturing stainless steel rods. CONSTITUTION: The method for manufacturing a porous stainless steel sheet with gradient pore structures using waste stainless steel scrap fiber comprises the steps of removing polymer material contained in byproducts of the waste stainless steel scrap fiber generated during the process of producing a stainless steel rod; laying up stainless steel scrap in a stainless steel web shape having a lamellar structure; and adhering each of adjacent portions of the scraps forming the stainless steel web laid up the above step, wherein the polymer material contained in the waste stainless steel scrap fiber is removed with a toluene solution which is mixed with a dispersing agent, the stainless steel scrap is laid up so that a size of the stainless steel scrap is continuously varied in the formation step of the stainless steel web, and the adhesion of the stainless steel scraps onto the adjacent portions is performed through sintering treatment.

Abstract translation: 目的：提供一种制造具有梯度孔隙结构的烧结多孔不锈钢板的方法，所述梯度孔隙结构使用制造不锈钢棒时产生的废副产物具有优异的过滤和吸音效果。 本发明公开了一种用不锈钢废旧纤维制造具有梯度孔结构的多孔不锈钢板的方法，该方法包括以下步骤：去除生产不锈钢棒过程中产生的废不锈钢废料纤维的副产物中所含的聚合物材料; 将不锈钢废料铺成具有层状结构的不锈钢腹板形状; 以及将形成上述不锈钢网的废钢的相邻部分粘附在上述步骤中，其中废弃不锈钢废钢纤维中所含的聚合物材料用与分散剂混合的甲苯溶液除去，不锈钢废钢 在不锈钢网的成型步骤中不锈钢废料的尺寸连续变化，并且不锈钢废料在相邻部分上的粘附通过烧结处理来进行。

公开(公告)号：KR1020020093355A

公开(公告)日：2002-12-16

申请号：KR1020010032074

申请日：2001-06-08

Applicant: 한국과학기술연구원

Inventor： 문인기 ,  임순호 ,  고흥석 ,  유명기 ,  장준연 ,  박종오

IPC: B29C47/10

CPC classification number: B29C47/1081 ,  B29C47/40 ,  B29C47/522

Abstract: PURPOSE: A short metal fiber feeding apparatus is provided to obtain high-polymer composite material by feeding the short metal fiber to a feeding hopper of an extruder with preventing a bundle of the short metal fiber from being tangled. CONSTITUTION: A short metal fiber feeding apparatus(50) includes a plurality of upper rolls(51,52,53,54,55) at an inner portion thereof. A plurality of first needles(57) is formed in the upper rolls(51,52,53,54,55). The upper rolls(51,52,53,54,55) are rotated by means of driving devices(51',52',53',54',55'), respectively. A guide plate and a storing box are installed below the short metal fiber feeding apparatus(50). A lower roll formed with a plurality of second needles is formed below the storing box. A cam is installed at a lateral part of the lower roll. A plurality of pins is installed above the lower roll in perpendicular to a length direction of the lower roll.

Abstract translation: 目的：提供一种短金属纤维喂入装置，通过将短金属纤维喂入挤压机的进料斗，以防止短金属纤维束缠结，从而获得高分子复合材料。 构成：短金属纤维馈送装置（50）在其内部包括多个上辊（51,52,53,54,55）。 多个第一针（57）形成在上辊（51,52,53,54,55）中。 上辊（51,52,53,54,55）分别通过驱动装置（51'，52'，53'，54'，55'）旋转。 在短金属纤维供给装置（50）的下方设置有引导板和收纳箱。 形成有多个第二针的下辊形成在储存箱的下方。 凸轮安装在下辊的侧面部分。 多个销垂直于下辊的长度方向安装在下辊上方。

公开(公告)号：KR1020020030197A

公开(公告)日：2002-04-24

申请号：KR1020000060785

申请日：2000-10-16

Applicant: 한국과학기술연구원

Inventor： 김재수 ,  윤진국 ,  고흥석 ,  이종권 ,  이정문 ,  김두용

IPC: B22F8/00

CPC classification number: Y02P10/24 ,  Y02W30/541

Abstract: PURPOSE: A method is provided to manufacture a sintered porous stainless steel sheet with gradient pore structures having superior filtering and sound absorption effects using waste byproducts generated when manufacturing stainless steel rods. CONSTITUTION: The method for manufacturing a porous stainless steel sheet with gradient pore structures using waste stainless steel scrap fiber comprises the steps of removing polymer material contained in byproducts of the waste stainless steel scrap fiber generated during the process of producing a stainless steel rod; laying up stainless steel scrap in a stainless steel web shape having a lamellar structure; and adhering each of adjacent portions of the scraps forming the stainless steel web laid up the above step, wherein the polymer material contained in the waste stainless steel scrap fiber is removed with a toluene solution which is mixed with a dispersing agent, the stainless steel scrap is laid up so that a size of the stainless steel scrap is continuously varied in the formation step of the stainless steel web, and the adhesion of the stainless steel scraps onto the adjacent portions is performed through sintering treatment.

Abstract translation: 目的：提供一种制造具有梯度孔结构的烧结多孔不锈钢板的方法，其具有优异的过滤和吸声效果，使用制造不锈钢棒时产生的废弃副产物。 构成：使用废弃不锈钢废料纤维制造具有梯度孔结构的多孔不锈钢板的方法包括除去在生产不锈钢棒的过程中产生的废不锈钢废料的副产物中包含的聚合物材料的步骤; 将不锈钢废料堆放在具有层状结构的不锈钢网状物中; 并且将形成形成不锈钢网的废料的相邻部分粘附在上述步骤中，其中包含在废弃不锈钢废料纤维中的聚合物材料用与分散剂混合的甲苯溶液除去，不锈钢废料 在不锈钢网的形成步骤中不锈钢废料的尺寸连续变化，并且通过烧结处理进行不锈钢废料粘附到相邻部分上。

公开(公告)号：KR1020000041707A

公开(公告)日：2000-07-15

申请号：KR1019980057661

申请日：1998-12-23

Applicant: 한국과학기술연구원

Inventor： 문인기 ,  장준연 ,  고흥석

IPC: C22C21/02

Abstract: PURPOSE: A method of manufacturing a hyper-eutectic Al-Si forging alloy is provided to enhance abrasion resistance and a coefficient of thermal expansion by modifying the weak point of a hyper-eutectic Al-Si alloy. CONSTITUTION: An alloy consists of 9.0-11.0wt% of Si, 1.5-2.0wt% of Cu, 0.5-1.3wt% of Mg, 0.1-0.3wt% of Mn, 0.3-0.5wt% of Ce, not more than 0.3wt% of each Zn and Fe, not more than 0.2wt% of incidental impurities such as Cr, Zr and Ti and the rest of aluminium. A molten metal having the same composition is obtained. The molten metal is mixed with 0.02-0.03% of an Al-Ti-B group compound and 0.7-1.0% of mischmetal. After that, a billet is manufactured from a DC(direct chill) caster and processed at a temperature of 500-520°C for 2-5 hours. The obtained billet is heated at a temperature of 460-480°C for 0.5-2 hours and extruded to have reduction rate of a sectional area over 4.

Abstract translation: 目的：提供一种制造超共晶Al-Si锻造合金的方法，以通过改变超共晶Al-Si合金的弱点来增强耐磨性和热膨胀系数。 构成：合金由9.0-11.0重量％的Si，1.5-2.0重量％的Cu，0.5-1.3重量％的Mg，0.1-0.3重量％的Mn，0.3-0.5重量％的Ce组成，不大于0.3 每个Zn和Fe的重量％，不大于0.2重量％的偶氮杂质如Cr，Zr和Ti以及其余的铝。 得到具有相同组成的熔融金属。 熔融金属与0.02-0.03％的Al-Ti-B族化合物和0.7-1.0％的混合稀土混合。 之后，由直流（直接冷却）连铸机制造坯料，并在500-520℃的温度下加工2-5小时。 将得到的坯料在460〜480℃的温度下加热0.5-2小时，挤出成型，其截面积为4倍以上。

公开(公告)号：KR100324622B1

公开(公告)日：2002-02-27

申请号：KR1019990027290

申请日：1999-07-07

Applicant: 한국과학기술연구원

Inventor： 고흥석 ,  유명기 ,  장준연 ,  문인기

IPC: B22F9/08

Abstract: 본발명은이종액체계면의섭동원리를이용한구형분말제조방법에관한것으로, 저융점합금을용융하여용탕을형성하고, 상기용탕에불활성가스를주입하여상기용융합금을노즐을통하여줄기형으로분사시키고, 상기줄기형으로분출되는용융합금을유기액상에주입시키는것으로이루어지는이종액체계면의섭동원리를이용한구형분말제조방법을제공한다. 본발명에의하여제조된합금분말은조직이미세하고, 매우균일한분포의입도를나타내며, 표면이매끄럽고, 진구형태를갖고있다. 또한본 발명에의한분말제조공정은매우단순하여제조장비의구성이쉬워다른제조방법보다제조비용을훨씬절감할수 있다. 따라서본 발명에의해제조된합금분말들을반도체칩또는인쇄회로기판의표면실장형회로구성을위한솔더부품으로사용할경우전자기기의 I/O핀의수를증가시키고핀의간격을보다작게할 수있어반도체또는시스템용보드의고집적 BGA 패키징작업을보다용이하게할 수있다.

公开(公告)号：KR100291560B1

公开(公告)日：2001-06-01

申请号：KR1019980057661

申请日：1998-12-23

Applicant: 한국과학기술연구원

Inventor： 문인기 ,  장준연 ,  고흥석

IPC: C22C21/02

Abstract: 본 발명은, Si: 9.0 - 11.0 중량%, Cu: 1.5 - 2.0 중량%, Mg: 0.5 - 1.3 중량%, Mn: 0.1 - 0.3 중량% 및 Ce: 0.3 - 0.5 중량%를 포함하고, 각각 0.3 중량% 이하의 Zn 및 Fe와, 0.2 중량% 이하의 Cr, Zr 및 Ti 등 불가피하게 수반되는 불순물 원소를 포함하고 그 나머지가 알루미늄으로 구성되는 아공정 Al-Si계 단련용 합금 및 Si: 9.0 - 11.0 중량%, Cu: 1.5 - 2.0 중량%, Mg: 0.5 - 1.3 중량% 및 Mn: 0.1 - 0.3 중량%를 포함하고, 각각 0.3 중량% 이하의 Zn 및 Fe와, 0.2 중량% 이하의 Cr, Zr 및 Ti 등 불가피하게 수반되는 불순물 원소를 포함하고 그 나머지가 알루미늄으로 구성되는 용융 금속을 얻고, 상기 용융 금속에 주조조직 미세화재인 0.02-0.03%의 Al-Ti-B계 화합물과, 공정조직 개량화재인 0.7 - 1.0%의 희토류계 밋시메탈 (mischmetal; 주성분 Ce 및 La; Ce 50% 이상의 것)을 첨가하여 용탕을 처리한 후, DC 주조기를 이용하� � 빌렛을 주조하고, 얻어진 빌렛을 500 - 520 ℃에서 2 - 5 시간 동안 균질화처리하고, 얻어진 빌렛을 460 - 480 ℃에서 0.5 - 2 시간 동안 가열한 후 단면적 감소율이 4 이상이 되도록 압출하는 아공정 Al-Si계 단련용 합금의 제조방법을 제공하고, 아울러 상기 합금(들) (Ge 첨가 합금 포함)의 압출 환봉을 스크롤형 압축기의 스크롤과 기타 경량화가 요구되는 구동부품의 제조를 위한 열간 단조 성형용 재료로의 이용을 제공한다.

公开(公告)号：KR1020010036472A

公开(公告)日：2001-05-07

申请号：KR1019990043498

申请日：1999-10-08

Applicant: 한국과학기술연구원

Inventor： 유명기 ,  고흥석 ,  장준연 ,  문인기

IPC: G12B17/00

Abstract: PURPOSE: A material for shielding electronic wave formed by using metal fiber of high magnetic permeability and a method for manufacturing the same are provided to supply interior material or exterior material for construction and electronic equipments to protect the life space from the circumstance of electromagnetic wave and to shield the electromagnetic wave emitted from the electronic equipments. CONSTITUTION: Material for shielding electronic wave formed by using metal fiber of high magnetic permeability and a method for manufacturing the same include a wall paper, the strength(Hinput)(5) of an outer magnetic field and the strength(Houtput)(7) of an inner magnetic field. The wall paper(6) has a medium layer, on which the metal fiber of high magnetic permeability is dispersed, and the magnetic field of the outer circumstance is shielded with making the wall paper(6) the center. The strength(Hinput)(5) of the outer magnetic field is shielded by the wall paper(6) and the strength(Houtput)(7) of the inner magnetic field is reduced. The metal fiber of the high magnetic permeability, the diameter of which is 20-30 micrometer, and the length of which is 10-30mm, is used. And the compound metal as Fe-Ni, Fe-Si, Co-Fe-Si-B etc. is material of the metal fiber.

Abstract translation: 目的：提供一种用于屏蔽通过使用高磁导率的金属纤维形成的电子波的材料及其制造方法，以提供用于建筑和电子设备的内部材料或外部材料，以保护与电磁波和 以屏蔽从电子设备发出的电磁波。 构成：用于屏蔽通过使用高导磁率的金属纤维形成的电子波的材料及其制造方法包括壁纸，外部磁场的强度（Hinput）（5）和强度（Houtput）（7） 的内磁场。 壁纸（6​​）具有介质层，分散有高磁导率的金属纤维，并且使壁纸（6）成为中心地屏蔽外部环境的磁场。 外部磁场的强度（Hinput）（5）被壁纸（6）屏蔽，内部磁场的强度（Houtput）（7）减小。 使用高导磁率的金属纤维，其直径为20-30微米，长度为10-30mm。 并且作为Fe-Ni，Fe-Si，Co-Fe-Si-B等的复合金属是金属纤维的材料。