Hand processing of platinum jewellery and its precautions
Platinum alloy jewelry blanks cast with jewelry molds must pass through the water-cutting, shaping, repairing defects, boring, sanding and other molding processes to become the perfect inlay bracket. Platinum jewelry is often set with high-quality precious stones such as diamonds, red treasures and sapphire. It is a high-grade jewellery, so the overall coordination of the appearance of the bracket, the smoothness of the surface, and the smoothness of the finish are more precise. Almost all metal alloy first-form materials will have a certain degree of hardening during cold rolling, drawing and stamping. Hardening is a manifestation of internal stress in metal materials. Common distortions occur when rolling sheets. , rupture, twisting, pulling, etc. The method of eliminating the hardening of a platinum alloy workpiece is annealing. Annealing of the platinum alloy can be carried out using a general torch flame. To successfully perform platinum alloy annealing, careful control of heating time and temperature is required. Most platinum alloys begin to exhibit stress relief at 600 οc and soften rapidly at 1000 οc. Heating the workpiece to a thickness of 2 mm is sufficient for about one minute depending on the thickness of the workpiece during the heating time. Workpieces with a thickness of more than 2 mm shall be prolonged in proportion to the heating time. Platinum alloys do not discolor and contaminate during annealing. Therefore, platinum can be heat treated without forming a surface and fading the film. The manufacture of parts of platinum alloy jewelry, tissue connection, ring modification and defect repair are mainly done by fusion welding. Welding is the most difficult part of platinum jewelry processing. Because the fusion welding of most platinum alloy materials is carried out at a temperature of 1500 ο or higher. In the processing of platinum jewelry hand, we must pay attention to the following aspects: 1 must prevent foreign matter on the surface of the workpiece (other metal debris pollution); 2 when annealing or welding, can not use contaminated support frame, fire resistance should be used for welding Can not use charcoal. 3 protect the eyes, the amount of white light radiation and ultraviolet radiation generated by high temperature welding is much higher than the ability of the naked eye to withstand, long-term exposure to radiation will cause "arc burns the eye", which may cause permanent damage to the retina. It is safer to use a filter for electric welding protection. Platinum alloys are extremely resistant to oxidation. After careful polishing, the jewelry will never lose its dazzling luster under static conditions. If it is highly polished, a white metal enamel is applied to enhance the surface hardness. The high reflectivity of the enamel and the long-lasting brightness of the enamel make the platinum alloy jewelry more dazzling. Our Lingerie suspender sets include bras, panties and suspenders. Suspenders go around the waist and straps go over the stockings to hold them up. They are designed to accentuate the curves of the body and create a sexy and alluring look. Lingerie suspender set is perfect for special occasions or to add glamor to everyday wear. Suspender Belt Set,Suspender Lingerie Set Womens,Suspender Suit Set,Women Suspender Lingerie Set FOSHANSHI NANHAI KAISIWA NEIYI CO.,LTD. , https://www.loveyousexyunderwear.com