| 摘要 |
The present invention relates to a method for manufacturing a gold-colored copper alloy. The method comprises: a first melting step of manufacturing a first molten metal by putting copper (Cu), chrome (Cr), nickel (Ni), titanium (Ti), iron (Fe), manganese (Mn), and silicon (Si) in a first melting furnace and melting them at 1100-1400°C; a second melting step of manufacturing a second molten metal by putting aluminum (Al), zinc (Zn), magnesium (Mg) in a second melting furnace and melting them at 800-950°C; a third melting step of manufacturing a third molten metal by putting tin (Sn) and phosphorus (P) in a third melting furnace and melting them at 400-450°C; and gold-colored copper melting step of manufacturing a gold-colored molten copper by putting the second molten metal and the third molten metal in the first melting furnace and melting them at 1100-1500°C for 40-60 minutes. A gold-colored copper alloy manufactured by the method can be used for decorations by having the original color and gloss of gold different to the color and gloss of general copper alloys, and can be used in an industrial field by having strong corrosion resistance. Especially, the present invention prevents the added additives from evaporating due to overheating by putting the additives into the first melting furnace after the additives are put into the first to third melting furnaces having each different heating temperature; thereby reducing manufacturing costs. [Reference numerals] (S10) First melting step of manufacturing a first molten metal by putting copper (Cu), chrome (Cr), nickel (Ni), titanium (Ti), iron (Fe), manganese (Mn), and silicon (Si) in a first melting furnace and melting them at 1100-1400°C for 60-90 minutes; (S20) Second melting step of manufacturing a second molten metal by putting aluminum (Al), zinc (Zn), magnesium (Mg) in a second melting furnace and melting them at 800-950°C for 60-90 minutes; (S30) Third melting step of manufacturing a third molten metal by putting tin (Sn) and phosphorus (P) in a third melting furnace and melting them at 400-450°C for 60-70 minutes; (S40) Gold-colored copper melting step of manufacturing a gold-colored molten copper by putting the second molten metal and the third molten metal in the first melting furnace and melting them at 1100-1400°C for 20-30 minutes; (S50) Ingot forming step of forming an ingot by pouring the molten copper in a mold and cooling the molten copper at room temperature |
