公开(公告)号：KR101447096B1

公开(公告)日：2014-10-07

申请号：KR1020130057351

申请日：2013-05-21

Applicant: 한국생산기술연구원

Inventor： 강문진 ,  김철희 ,  김동철 ,  안영남 ,  이근안 ,  최석우 ,  송정한

IPC: B21B37/74 ,  B21B37/00

CPC classification number: B21B13/16 ,  B21B37/74 ,  B21B2201/00 ,  B21B2203/18

Abstract: The present invention relates to a rolling apparatus with an electric current applying method improving formability by applying electric current when cold-rolling plates and preventing a spring back phenomenon. The apparatus comprises a first rolling mill in rolling contact with a moving workpiece, and roll-forming the workpiece; a front roll electrode in rolling contact with the workpiece before going through the first rolling mill; a rear roll electrode in rolling contact with the workpiece after going through the first rolling mill, and electrically in contact with the workpiece; and a first electricity supply part generating a potential difference between the front roll electrode and the rear roll electrode so that electric current can flow to the workpiece between the front roll electrode and the rear roll electrode.

Abstract translation: 本发明涉及具有电流施加方法的轧制装置，其通过在冷轧板上施加电流并防止弹回现象而提高成形性。 该装置包括与移动的工件滚动接触的第一轧机和辊成形工件; 在通过第一轧机之前与工件滚动接触的前辊电极; 后辊电极，经过第一轧机与工件滚动接触并与工件电接触; 以及产生前辊电极和后辊电极之间的电位差的第一供电部，使得电流能够流到前辊电极和后辊电极之间的工件。

公开(公告)号：KR1020130052206A

公开(公告)日：2013-05-22

申请号：KR1020110117522

申请日：2011-11-11

Applicant: 현대자동차주식회사

Inventor： 이종국

IPC: B21B1/46 ,  B22D11/00 ,  B22D11/108 ,  B22D11/111 ,  B22F1/02

CPC classification number: B21B1/463 ,  B21B2201/00 ,  B22D11/003 ,  B22D11/108 ,  B22D11/111 ,  B22F1/02 ,  B22F1/025

Abstract: PURPOSE: A method for improving the mechanical anisotropy of an aluminum sheet and the aluminum sheet manufactured by the same are provided to apply a magnetic field in order to place carbon nanotube particles at an angle of 60 to 80 degrees against a direction for rolling the strip-casted and semi-solidified sheet using a rolling roll. CONSTITUTION: A method for improving the mechanical anisotropy of an aluminum sheet includes: a step of adding and stirring carbon nanotube particles in molten aluminum, and then strip-casting the aluminum sheet; a step of applying a magnetic field in order to in order to place the particles at an angle of 60 to 80 degrees against a direction for rolling the strip-casted and semi-solidified sheet using a rolling roll; and a step of post-treating the sheet with an existing method after rolling. The particles to be added in the molten aluminum are coated with a Fe based material so that the particles have an anti-oxidation property and an electromagnetic property in the molten aluminum. [Reference numerals] (AA) Magnetic field; (BB) CNT arrangement; (CC) Rolling direction

Abstract translation: 目的：提供铝板及其制造的铝板的机械各向异性的方法，以施加磁场，以使碳纳米管颗粒相对于轧制带材的方向成60度至80度的角度 使用轧辊轧制和半固化片材。 构成：提高铝板的机械各向异性的方法包括：在熔融铝中添加并搅拌碳纳米管颗粒，然后剥离铝板的步骤; 施加磁场的步骤是为了使颗粒相对于使用轧辊轧制带状铸造和半固化片材的方向以60至80度的角度放置; 以及轧制后用现有方法对片材进行后处理的步骤。 添加在熔融铝中的颗粒用Fe基材料涂覆，使得颗粒在熔融铝中具有抗氧化性和电磁特性。 （标号）（AA）磁场; （BB）CNT布置; （CC）滚动方向