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公开(公告)号：KR1020150113220A
公开(公告)日：2015-10-08
申请号：KR1020140022746
申请日：2014-02-26
Applicant: 경상대학교산학협력단
IPC: B22D27/20 , B22D11/108 , B22D11/06
Abstract: 본발명은과공정 Al-Si 합금에서의초정 Si 및공정 Si의동시미세화방법에관한것으로, 내부에냉각수가흐르는냉각판을준비하는냉각판준비단계(S1단계)와; 소정의온도에서용해된과공정합금 Al-Si 합금을준비하는 Al-Si 합금용탕또는용융금속준비단계(S2단계)와; Al-Si 합금용탕또는용융금속에 Sr을첨가하는 Sr 첨가단계(S3단계) 및; 목표주입온도에서 Sr이첨가된 Al-Si 합금용탕또는용융금속을상기냉각판상에흘려주는용탕또는용융금속처리단계(S4단계)로이루어져소정의온도에서용해된과공정 Al-Si 합금에 Sr을첨가후 목표주입온도에서냉각판에용융금속을흘려줌으로써미세한초정및 공정 Si상을얻고, 고가의추가장치가필요하지않으며, 간단한냉각판에의해제조가능하며, 초정및 공정 Si의미세화를통한합금의기계적특성향상및 열팽창율을감소시키고미세화를위해첨가하는원소에의한유독가스발생및 불순물을감소시킬수 있으면서초정 Si 상을균일하게분포시킬수 있는각별한장점이있는유용한발명이다.
Abstract translation: 本发明涉及一种在过共晶Al-Si合金中同时精炼一次Si和共晶Si的方法，包括：制备冷却水的内部冷却板的制备步骤（步骤S1）; 制备在预定温度下溶解的过共晶Al-Si合金的Al-Si合金熔融金属制备步骤（步骤S2） 对Al-Si合金熔融金属添加Sr的Sr添加工序（工序S3） 并且在目标注射温度下添加了Sr的Al-Si合金熔融金属的熔融金属处理步骤（步骤S4）在冷却板的顶部流动。 通过向已经在预定温度下溶解的过共晶Al-Si合金添加Sr并使熔融金属以目标注射温度流过冷却板的顶部，获得高级的初级Si和共晶Si，高价格的附加装置 不需要，并且可以通过简单的冷却板来制造精细的初级Si和共晶Si。 主要Si可均匀分布，同时改善合金的机械性能，并通过初级Si和共晶Si的细化降低合金的热膨胀系数，并减少由添加的元素引起的有害气体的产生 用于精制和杂质。
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公开(公告)号：KR1020100111526A
公开(公告)日：2010-10-15
申请号：KR1020090029997
申请日：2009-04-07
Applicant: 경상대학교산학협력단
Abstract: PURPOSE: A motor wired with an aluminum line manufactured in OCC method is provided to enhance the movement of a motor by reducing the weight of wires by 1/3 by wiring a stator with the aluminum banding wire which is manufactured by continuous casting of OCC process. CONSTITUTION: A wire(2) is wired to a shaft and a stator. The wire wired to the stator of the motor is wired to the aluminium wire manufactured using the OCC process, in order to reduce the weight of the motor by 1/3. The aluminium wire is used for the stator of the motor or the generator as the wiring coil.
Abstract translation: 目的：采用OCC方式制造的铝线连接电机，通过连续铸造OCC工艺制造的铝合金线将定子与定子相连，减少电线重量，增加电机的运动 。 构成：线（2）连接到轴和定子。 连接到电动机定子的电线连接到使用OCC工艺制造的铝线，以便将电动机的重量减少1/3。 铝线用作电机或发电机的定子作为线圈。
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公开(公告)号：KR1020080018571A
公开(公告)日：2008-02-28
申请号：KR1020060080892
申请日：2006-08-25
Applicant: 경상대학교산학협력단
IPC: C22C1/03
Abstract: A high performance Al alloy for extrusion is provided to find out an optimal scandium(Sc) content considering economic efficiency as well as physical properties such as hardness and microstructure of an Al alloy itself. A high performance Al alloy for extrusion is characterized in that an Al alloy having a composition comprising 0.3 wt.% of Sc is manufactured from the molten Al5083 alloy using an Al-2wt.%Sc mother alloy in a mold that is preheated to 240 deg.C after completely melting an Al5083 alloy at 710 deg.C.
Abstract translation: 提供了一种用于挤出的高性能Al合金，以考虑经济效率以及Al合金本身的硬度和微观结构的物理性质来找出最佳钪（Sc）含量。 用于挤出的高性能Al合金的特征在于，使用Al-2wt。％Sc母合金在熔融的Al5083合金中，在预热到240度的模具中制造具有0.3重量％的Sc的组成的Al合金 在710℃完全熔融Al5083合金后。
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公开(公告)号：KR1020170041002A
公开(公告)日：2017-04-14
申请号：KR1020150140399
申请日：2015-10-06
Applicant: 경상대학교산학협력단
Abstract: 본발명은냉각속도및 용탕흐름이개선된반응고합금제조장치에관한것으로, 중앙부에길이방향으로사각형단면의∪자형상의홈(101)을구비하고반응고합금에초정을생성시키는냉각판(100)과; 상기냉각판(100) 하면양측면방향에걸쳐밀착설치되어일단에냉각수공급수단(201)이연결된다수의호스(202) 타단에연결되어냉각수가순환하는다수의냉각파이프(200)로구성되어냉각판을깊이가있는반원통상으로형성함과더불어경사진냉각판의중앙부길이방향을따라 U자형홈을형성함으로써용탕이냉각판밖으로유출되는일 없이용탕의유량, 유속및 온도분포를용이하게측정하여냉각판상에흐르는용탕의조건을미리설정하여적절한범위로제어함으로써냉각판상에서생성, 분리되는초정으로인해구형의미세한초정을갖는합금을제조할수 있고, 냉각판의하면양측면방향에걸쳐일정한간격으로다수의냉각파이프를밀착설치하여냉각수를순환시켜줌에따른냉각효율의향상으로난성형경량합금의성형성을개선함에따라알루미늄및 마그네슘등 경량소재의고강도화및 고연신화압출이가능하여장치의무게가가벼워장치의처짐현상이없으면서설치하기용이할뿐만아니라구조가간단하여장치의가격을저렴화할수 있으면서고장없이장기간안정되게사용할수 있는수명이긴 각별한장점이있는유용한발명이다.
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公开(公告)号：KR101714858B1
公开(公告)日：2017-03-09
申请号：KR1020150007412
申请日：2015-01-15
Applicant: 경상대학교산학협력단
Abstract: 일실시예에따른굴삭기의버킷티스는, 상기굴삭기의버킷티스표면이예열된다음, 니켈계자용성합금분말로용사코팅되고, 상기니켈계자용성합금분말의녹는점이상온도로후열처리되어, 표면에니켈계자용성합금코팅층이형성될수 있다.
Abstract translation: 根据本发明的实施例的挖掘机的铲斗齿如下涂覆。 挖掘机的铲斗齿的表面被预热。 将镍基自熔合金粉末喷涂并涂覆在铲斗齿的预热表面上。 然后，在高于或等于镍基自熔合金粉末的熔点的温度下用热处理铲斗齿的表面，以在镍基自熔合金粉末的表面上形成镍基自熔合金涂层 斗齿。 因此，本发明提高了铲斗齿的硬度和耐磨性。
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Patent Agency Ranking
公开(公告)号：KR1020160114473A
公开(公告)日：2016-10-05
申请号：KR1020150041030
申请日：2015-03-24
Applicant: 경상대학교산학협력단
Abstract: 본발명은입상조직을갖는고강도ㆍ고연신알루미늄압출재제조방법에관한것으로, 알루미늄합금의용융금속으로주조공정을통해빌렛을제조하는빌렛제조단계(S1단계)와; 제조된빌렛을전기로에서목표온도로예열하여소킹시간동안유지시키는예열단계(S2단계)와; 예열된빌렛을압출온도에서설정된압출기의램 속도로압출하는압출단계(S3단계)로이루어져고강도알루미늄합금을낮은압출압력으로압출하여등축입상조직을가짐에따른압출재의고 연신화와등방성소재제조기술을확보하고, 고강도알루미늄합금의압출성향상에따른경량부품으로서의적용가능성을확대하며, 기존주철ㆍ주강의재질의부품을대체할수 있으면서압출이어려운소재의압출성향상에따라생산성을향상시킬뿐만아니라압출성과연신률이낮은고강도알루미늄합금에대하여연신조직이아닌입상조직을가지게함으로써압출성을향상시키고, 제조공정의단순화로제품의가격을저렴화할수 있는경제성이탁월한각별한장점이있는유용한발명이다.
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公开(公告)号：KR1020120132220A
公开(公告)日：2012-12-05
申请号：KR1020110050914
申请日：2011-05-27
Applicant: 경상대학교산학협력단
Abstract: PURPOSE: A cooling speed controlled die casting device and method are provided to reduce the volume of the device by excluding an electromagnetic stirrer or ultrasonic generator and to improve productivity by reducing the retention of molten steel in a ladle or sleeve. CONSTITUTION: A die casting device comprises a mold(400), a sleeve(100) which receives molten steel and is connected to the mold, and a plunger(200) which supplies molten steel at a predetermined pressure to the mold. The sleeve is made of stainless steel and includes a heater(120) for regulating the temperature of molten steel and a temperature controller which controls the heater to maintain molten steel in the sleeve at a predetermined temperature or cool the molten steel at a predetermined cooling rate.
Abstract translation: 目的：提供一种冷却速度控制的压铸装置和方法，通过排除电磁搅拌器或超声波发生器来减小装置的体积，并通过减少钢水或钢桶中的钢水的保持力来提高生产率。 构成：压铸装置包括模具（400），容纳钢水并连接到模具的套筒（100）以及以预定压力将钢水供给模具的柱塞（200）。 套管由不锈钢制成，包括用于调节钢水温度的加热器（120）和控制加热器以将套管中的钢水保持在预定温度的温度控制器，或以预定冷却速度冷却钢水 。
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公开(公告)号：KR101102139B1
公开(公告)日：2012-01-02
申请号：KR1020080124740
申请日：2008-12-09
Applicant: 경상대학교산학협력단
Abstract: 본 발명은 반용융 압출용 Al-Zn-Mg계 알루미늄 합금 빌렛의 결정립 성장을 억제하는 방법을 제공한다. 본 발명은 용탕에 0.05~0.15%의 Sc를 첨가하는 Sc 첨가 단계 및 상기 용탕으로 부터 주조된 빌렛에 대하여 3단계 이상의 승온 처리 과정을 포함하는 승온 단계를 포함하는 것을 특징으로 한다. 이 경우, Sc는 용탕에 Al-2중량% Sc 모합금 상태로 Sc를 첨가할 수 있으며, 각 승온 과정이 종료된 후 5~10분의 유지시간을 가질 수 있다. 본 발명의 방법으로 제조된 알루미늄 합금 빌렛의 결정립 성장률은 초기 결정립 면적을 기준으로 10% 이하이다.
본 발명에 의하면 별도의 설비나 비용을 추가하지 않고 반용융 압출 방법으로 결정립 성장률이 작은 Al-Zn-Mg계 알루미늄 합금 빌렛을 제조할 수 있어 경제적이며, 내외부의 결정립이 미세하고 균일한 빌렛을 제공할 수 있다.
반용융 압출, 3단계 승온, 결정립 성장, Sc, 빌렛-
公开(公告)号：KR1020090036239A
公开(公告)日：2009-04-14
申请号：KR1020070101295
申请日：2007-10-09
Applicant: 경상대학교산학협력단
Inventor： 임수근
IPC: C22C23/00
CPC classification number: C22C23/00 , C22C1/1036 , C22C2200/00 , C22C2202/00
Abstract: A fining method of the magnesium alloy is provided to increase the mechanical strength and workability of the magnesium alloy by making the grain of the magnesium micronized. A fining method of the magnesium alloy comprises: a step of manufacturing the magnesium melted alloy in order to dissolve the magnesium alloy by melting an electric furnace consisting of the Ar atmosphere; a step of adding the C2Cl6 in the magnesium melted alloy at the temperature of 780°C; and a step of completely disassembling C2Cl6 mixed molten metal by maintaining the magnesium alloy and C2Cl6 mixed molten metal in a melting tub for 20 minutes. The elongation ratio of alloy increases since the strain hardening section is increased.
Abstract translation: 提供镁合金的精细化方法，通过使镁微粒化的晶粒增加镁合金的机械强度和加工性。 镁合金的精细化方法包括：通过熔化由Ar气氛组成的电炉来熔化镁合金来制造镁熔融合金的步骤; 在780℃的温度下将C2Cl6加入到镁熔融合金中的步骤; 以及通过将熔融槽中的镁合金和C2Cl6混合熔融金属保持20分钟来完全分解C2Cl6混合熔融金属的步骤。 由于应变硬化部分增加，合金的伸长率增加。
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公开(公告)号：KR1020120129671A
公开(公告)日：2012-11-28
申请号：KR1020110048066
申请日：2011-05-20
Applicant: 경상대학교산학협력단
Abstract: PURPOSE: A nonferrous metal capillary tube and a manufacturing method thereof are provided to improve the yield rate of extruded materials by securing a steady-state structure in the early stage of extrusion. CONSTITUTION: A method for manufacturing a nonferrous metal capillary tube comprises the steps of: heating billet(50) to a temperature 5-15°C lower than the melting point, inserting the billet into a container, pressing the billet in the container at a ram speed of 1-5mm/s, and extruding a non-ferrous metal capillary tube with ram pressure through a die(30) attached to an end of the container at a discharge speed of 30-40m/min.
Abstract translation: 目的：提供一种有色金属毛细管及其制造方法，以通过在挤压的早期阶段确保稳态结构来提高挤压材料的成品率。 构成：用于制造有色金属毛细管的方法包括以下步骤：将坯料（50）加热至比熔点低5-15℃的温度，将坯料插入容器中，将坯料压在容器中 冲头速度为1-5mm / s，并以30-40m / min的排出速度通过连接到容器端部的模具（30）挤压具有冲压压力的有色金属毛细管。
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