| 摘要 |
PURPOSE: A synthetic steel mineral using steel mineral stone and iron powder as principal raw materials is provided which is easily manufactured at low cost by mixing natural mineral stone, iron powder and synthetic resin and performing first compression injection molding, second insert molding and surface treatment, and a manufacturing method thereof is provided. CONSTITUTION: The manufacturing method of synthetic steel mineral using steel mineral stone and iron powder as principal raw materials comprises the steps of mixing natural mineral stone, iron powder, synthetic resin and additive; blending, melting, heating and transferring the mixture at a temperature of 160 to 300 deg.C using first transferring hot bin; melting a material to be formed into the synthetic steel mineral so that the melted material is transferred to second vertical injection cylinder, preventing back flow of the material, automatically weighing the weight of the material, and maintaining temperature of the material to the temperature range of 160 to 300 deg.C; and performing first compression injection molding on the material mixed in a metallic pattern, wherein the manufacturing method further comprises the steps of directly cooling first compression injection molded article in the metallic pattern; extracting the article from the metallic pattern, and cooling the article as passing the extracted article through a cooling tunnel; and performing second injection molding on the article through insert molding, and completing a final article.
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