HOT PRESS MOLDED PRODUCT HAVING EXCELLENT CORROSION RESISTANCE AND METHOD FOR PREPARING SAME

• Main Authors: HWANG, Hyeon-Seok, SOHN, Il-Ryoung, KIM, Jong-Sang
• Format: Patent
• Language: English; French; Korean
• Published: 29.06.2017
• Subjects: ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; PUNCHING METAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

Disclosed is a hot press molded product, which is prepared by means of hot press molding a Zn-Al-Mg plated steel material comprising base iron and a Zn-Al-Mg plating layer, and a method for preparing same, the hot press molded product comprising an oxide layer formed on the surface thereof, wherein the content ratio of Al to Mg (Al/Mg) in the oxide layer is 0.8 or higher. La présente invention concerne un produit moulé par pressage à chaud, qui est préparé au moyen d'un moulage par pressage à chaud d'un matériau d'acier plaqué de Zn-Al-Mg comprenant du fer de base et une couche de placage de Zn-Al-Mg, et un procédé de préparation de celui-ci, le produit moulé par pressage à chaud comprenant une couche d'oxyde formée sur la surface de celui-ci, le rapport de teneur de Al à Mg (Al/Mg) dans la couche d'oxyde étant de 0,8 ou plus. 소지철 및 Zn-Al-Mg계 도금층을 포함하는 Zn-Al-Mg계 도금강재를 열간 프레스 성형하여 제조되는 열간 프레스 성형품에 있어서, 상기 열간 프레스 성형품은 그 표면에 형성된 산화물층을 포함하며, 상기 산화물층에 포함된 Mg의 함량에 대한 Al 의 함량의 비(Al/Mg)는 0.8 이상인 열간 프레스 성형품과 이를 제조하는 방법이 개시된다.