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Behind the dazzling brilliance of jewelry, the jewelry rolling mill plays a crucial role. From raw materials to exquisite finished products, each process in the rolling mill is like magical magic, allowing jewelry to achieve a magnificent upgrade.

1、 Careful selection of raw materials

The first step for the jewelry rolling factory to embark on the journey of jewelry upgrading is to strictly control the raw materials. Our professional procurement team travels between mining sources and suppliers around the world, searching for the highest quality precious metals such as gold, silver, platinum, as well as various gemstone raw materials. For precious metals, they use advanced detection instruments to identify subtle differences based on purity standards, ensuring that every metal entering the production line meets the corresponding high purity requirements. Like gold, commonly available in different purity levels such as 24K and 18K, the rolling mill will purchase accurately based on the subsequent jewelry design positioning.

In terms of gemstones, procurement personnel rely on their rich experience and professional knowledge to distinguish the authenticity and quality level of gemstones. Taking diamonds as an example, it is necessary to consider the “4C” standards of color, clarity, cut, and carat weight comprehensively. The closer the color is to colorless, the fewer internal flaws, the more finely cut the diamond can reflect light to the maximum extent, and the appropriate carat number, the more qualified it is to enter the next process. Only high-quality raw materials can lay a solid foundation for jewelry upgrades.

2、 Accurate design drawing conversion

When high-quality raw materials are in place, the design process seamlessly connects. Jewelry designers are ingenious and create exquisite design drawings, while process engineers in rolling mills are responsible for transforming two-dimensional drawings into three-dimensional objects. They use professional CAD (Computer Aided Design) software to digitally simulate design details and accurately calculate data for every curve, thickness, and inlay angle.

For example, for a complex diamond encrusted necklace design, engineers need to ensure that the curve of the pendant is smooth, the connection with the chain is natural, and the depth of the diamond inlay can stabilize the gemstone without affecting the overall beauty. By repeatedly simulating and adjusting, accurate processing models are generated to provide precise blueprints for subsequent rolling, forming, and other operations, allowing jewelry to gradually materialize from abstract concepts and move towards perfect forms.

3、 Precise rolling and shaping

Rolling is a crucial step in the formation of jewelry, and professional rolling mills play a central role in it. According to the design requirements, the precious metal raw materials are heated to a suitable temperature range, which requires precise temperature control. Different metals have different melting points, and temperature deviations can cause changes in material properties, affecting the quality of the finished product. Gold has the best ductility at specific temperatures, making it easy to roll into thin sheets or filaments.

The rolling mill applies uniform pressure to the metal through precisely set roller gaps, gradually rolling the block shaped raw materials into the thickness and shape required by the design. From delicate rings to gorgeous bracelet patterns, from exquisite pendant holders to large decorative gold pieces, each rolling is a fine carving of size and shape. During the process, the operator constantly monitors and ensures that the product size tolerance is controlled within a very small range with their keen touch and precise measuring tools, providing seamless components for subsequent assembly and inlaying.

4、 Exquisite inlay craftsmanship integrated

For many jewelry items, gemstone inlay is the finishing touch and a specialty of the rolling mill. The inlay craftsmen operate under a microscope and adopt various inlay methods based on the characteristics and design styles of different gemstones. Claw inlay, using slender metal claws to firmly grasp gemstones and highlight their transparent texture, is commonly used in diamond rings to maximize the display of diamond radiance while ensuring stability. The number, angle, and length of claws have been carefully adjusted; Wrapping the edges of gemstones with metal creates a classical and warm style, suitable for colored gemstones, protecting them while giving them a low-key luxury feel.

In the field of micro inlay, craftsmen use special tools to tightly arrange and inlay small, dusty diamond or gemstone particles one by one, commonly used in high-end watch dials, luxury jewelry decorative bands, etc., presenting dazzling visual effects. This process tests patience and skill, as any slight deviation in the setting of a gemstone can damage the overall beauty. However, they use their exquisite craftsmanship to perfectly blend the gemstone with the metal, enhancing the overall charm of the jewelry.

5、 Fine surface treatment and polishing

The semi-finished jewelry products that have been formed and embedded still need to undergo surface treatment and polishing in order to shine with ultimate brilliance. The rolling mill adopts various polishing processes, from rough grinding to remove fine defects and burrs left by rolling and inlaying, to medium grinding to refine surface texture, and then to fine grinding with soft polishing wheels and fine polishing agents, making the metal surface as smooth as a mirror.

For jewelry with special texture requirements, such as vintage frosted texture, brushed effect, etc., craftsmen use professional tools to handcraft them. Taking the drawing process as an example, a steel wire brush with moderate hardness is repeatedly brushed in a specific direction on the metal surface to form delicate and uniform filamentous patterns, which can not only prevent slipping but also add artistic charm. Finally, by means of chemical cleaning, electroplating, and other methods, the antioxidant properties of jewelry are further enhanced, giving it a lasting and bright appearance that shines brightly throughout the passage of time.

6、 Strict quality inspection and control

Before the jewelry is about to leave the factory, comprehensive quality inspection is the last line of defense to ensure quality. Quality inspectors conduct comprehensive “physical examinations” on each product based on international and domestic jewelry standards. Visually, check for scratches, loose gemstones, uneven inlay gaps, and other defects; In terms of dimensional accuracy, recheck the deviation from the design drawings to ensure wearing comfort and overall coordination; In terms of physical and chemical properties, it tests indicators such as metal purity, hardness, and durability of gemstones, simulates daily wearing environments such as friction, humidity, and temperature changes, and tests whether jewelry can maintain quality for a long time.

Only jewelry that has undergone rigorous testing can be labeled as qualified, flow into the market, and enter the hands of consumers. It carries the craftsmanship and craftsmanship of the rolling mill, becoming a treasure that people cherish and wear, shining in every beautiful moment of life. With this complete and refined process, the jewelry rolling factory enables jewelry to complete a magnificent transformation from ordinary to stunning, constantly writing a brilliant legend in the jewelry world.