METHOD OF PRODUCING ALUMINUM/COPPER STRATIFIED COMPOSITE MATERIAL BY INDIRECT EXTRUSION

PURPOSE: A producing method of an aluminum/copper stratified compound material is provided to produce an aluminum/copper stratified compound material by using an indirect extrusion. CONSTITUTION: An aluminum(12) core material and a copper(11) coating material are bonded and fixed to form a billet. A...

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Bibliographische Detailangaben
Hauptverfasser:	KWON, HYEOK CHEON, KIM, JONG HO, O, CHUNG SEOP
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE: A producing method of an aluminum/copper stratified compound material is provided to produce an aluminum/copper stratified compound material by using an indirect extrusion. CONSTITUTION: An aluminum(12) core material and a copper(11) coating material are bonded and fixed to form a billet. An extruded billet is lubricated, heated at a temperature of 200°C and higher, inclined-heated by being inserted to a container having its temperature adjusted to be higher than that of the billet, and extruded in a die angular degrees, dihedral angle, 2theta is 90 angular degrees or less. Thereby, an aluminum/copper stratified compound material is produced. The fixation of the core material and the coating material is performed by a mechanical bonding or a pressurizing casting. The lubrication is performed by spreading a mixture of graphite powder and mineral oil having 1000 mesh and less. The inclined-heating is performed in the condition of from 200°C to 350°C of billet temperature and from250°C to 400°C of container temperature. 본 발명은 기존의 정수압압출법이 아닌 간접압출법을 이용하여 전기전자용으로 사용되고 있는 부스-바(BUS-BAR)용 구리피복 알루미늄합금의 층상복합재료를 압출하는 방법에 관한 것로으서, 기존의 정수압압출장치의 복잡한 메카니즘으로 인하여 압출장치의 가격이 매우 고가라는 단점과 압력전달용매에 사용으로 인한 용이하지 않는 빌렛 장착문제 등으로 인한 작업의 난이성 때문에 부스-바용 알루미늄/구리 층상복합재료의 단가의 상승을 유발시키는 문제를 해결하기 위하여, 기계적 가접법 또는 가압주조법을 이용하여 압출용 빌렛을 제작하고, 흑연분말을 윤활제로 사용하여 경사가열 및 이면각 2θ= 90°이하의 다이각을 이용하여 간접압출을 행하는 것이므로 낮은 가격에 다양한 특성 및 고부가가치를 지닌 알루미늄/구리 층상복합재료는 전기전자용으로 사용되고 있는 부스-바로 이용할 수 있다.