MANIFACTURING FOR OXIDIZED LAYER OF MAGNESIUM-BASED METAL MATERIAL

摘要

PURPOSE: A method for manufacturing an oxide layer of Mg-based metal is provided to eco-friendly form an oxide layer on Mg and a Mg alloy to be thick and fine in a short time. CONSTITUTION: A method for manufacturing an oxide layer of Mg-based metal includes the following steps of: forming an oxide layer by radiating plasma using source gas to a Mg-based parent metal; and applying cathode on the Mg-based parent metal when irradiating the plasma. The source gas includes one or more kinds among nitrogen, air, and oxygen. The temperature of the plasma is 100-500°C. The plasma is radiated for 1 to 10 minutes at a position apart from 3-20 mm. [Reference numerals] (AA) Plasma generating unit; (BB) Plasma; (CC) Magnesium-based parent material; (DD) Reaction of O and O_2 in the air; (EE) Micro-arc; (FF) Form an oxidized layer