Mechanized production is the first guarantee of quality. First, designers convert the blueprints into 3D models, and CNC engraving machines carve the wax models with an accuracy of 0.01 millimeters to ensure smooth and error-free patterns.
Then, using the lost wax casting method, 18k gold solution is injected into heat-resistant plaster molds, and after cooling, a metal core is formed. At this stage, the rough model already possesses a perfect structural framework.
Subsequently, precision grinding machines, equipped with various grit sandpapers, are used to progressively remove surface burrs, giving the core an even matte finish and preparing it for subsequent gold plating.
Once the mechanical process has completed the basic shaping, the stage of handcrafted artistry begins. Skilled artisans then take over, using ultra-fine diamond-coated brushes to meticulously carve out the intricate details of the patterns, bringing to life the veins of the petals and the coils of the vines.
This step is the most demanding in terms of dexterity; applying too much pressure can damage the structure, while applying too little will fail to highlight the layers. Following this, the artisans use velvet cloths for mirror-like polishing.
As the cloth rubs against the metal, the body begins to develop a warm, lustrous finish, even the smallest corners becoming as smooth as mirrors.
The gold plating process also requires meticulous manual control. Before immersing the mold body in the gold plating solution, artisans meticulously clean every crevice with degreasing cotton to ensure there are no impurities left behind.
During the electrically powered gold plating process, they use their expertise to adjust the current intensity, ensuring that the gold layer adheres evenly and the thickness is maintained at around 0.5 micrometers—this not only guarantees a rich color but also prevents the underlying metal texture from being obscured.
Finally, quality inspectors use magnifying glasses to thoroughly inspect each point to confirm that there are no air bubbles or missed spots, after which a 18k gold-plated piece of jewelry can be considered fully completed.
