The oil pressing process for making gold jewelry is as follows:
Mold making: Convert the drawings from the design department into molds. This is the primary procedure for producing high-quality products, which is accomplished by the tooling department. The mold making requires the selection of special materials and fine processing.
Initial processing:
If the mold is of a chain structure (such as a necklace, bracelet, anklet, etc.), pass it to the material preparation department. The material preparation department processes and produces the initial shapes of products based on molds, such as necklace accessories (small round beads, olive beads, etc.).
If the mold is a ring, bracelet, pendant, gold bar, etc., pass it to the hydraulic department. The hydraulic department also processes and produces the initial form of the product, that is, the semi-finished product.
Shaping treatment: The semi-finished products processed by the hydraulic department are transferred to the mold holding department. The mold holding department shapes the semi-finished products to make the round ones rounder and the square ones more square.
Pattern creation: After shaping, the products are handed over to the embossing department. The embossing department uses a embossing machine to create various patterns on the product surface with a diamond knife. The operating speed of the carding machine can be adjusted according to the pattern requirements of different types of jewelry, and the patterns of the carded jewelry are uniform.
Polishing and calendering: After the engraving, the jewelry is handed over to the electrogold department. The electrogold department polishes and calenders the products, removing impurities and dust from the surface of the gold jewelry to achieve the best effect.