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Gold Jewelry Casting
The Gold Casting Jewelry Process: A Closer Look
Gold casting is a part of the jewelry creation process. It allows designers and jewelry stores to take an idea or design, to create a mold, and eventually to end up with a physical reproduction of the final product.
The gold casting process involves the following steps:Wax model and casting preparation - A worker carves or prints a wax model in three dimensions that represents the design of the final product. This wax model is connected to a wax stem by a sprue. Through this channel the molten gold will flow into the mold.Investment - The wax stem and the attached models are placed in a special frame called a flask and surrounded by an investment material. Once the investment material sets, it hardens into the mold for the jewelry.Burnout - After the investment material hardens, the flask is placed in a special kiln to burn away the wax, which leaves a cavity in the investment material that becomes the final mold.
Melting - The gold is melted, and depending on the alloy or type of gold used, temperatures can range from 1,617 degrees Fahrenheit and 2,006 degrees Fahrenheit. Gold can be combined with other metals like silver, copper and palladium to create different alloys of varying color and hardness.Casting - The liquid gold can be poured directly into the mold, but various techniques can be used to ensure a higher-quality casting. Centrifugal casting, vacuum-assisted casting or pressure casting can be used to ensure the gold flows into every area of the mold evenly.Divesting - Once the metal cools, it needs to be removed from the investment material. This can be done through physical or chemical means. Each casting is cleaned and polished, and the sprues are cut off for recycling.
Designers and jewelry stores have the option to cast their own gold jewelry, but the process is time- consuming and complicated. Using a gold casting company, allows jewelry designers and jewelry stores to create unique pieces of jewelry without having to learn the complex and tedious casting process.
The casting gold experts are always working to offer clients the ability to work with the newest, most popular metals. Our selection of gold metals constantly changes to meet our clients needs.
There are three main types of gold that typically are used in jewelry manufacturing:White GoldThis is yellow gold that is generally mixed with nickel and then plated with rhodium: A silvery white metal that gives white gold its shine and luster. The plating process involves dipping the jewelry into a solution containing rhodium, then running an electric current through it to bond the rhodium particles to the surface. This plating process needs to be redone periodically because the rhodium will wear off over time. White gold can also be made by mixing gold with palladium for people who are allergic to nickel.Yellow GoldYellow gold is typically alloyed with copper, silver or zinc, with the gold taking on a more reddish or greenish hue depending on the metal of which it is mixed.Rose GoldThe pinkish color of rose gold is the result of yellow gold being alloyed with different levels of copper and silver.
The following chart explains how much gold is present in the different karats:
24K = 99.9 percent gold
22K = 91.6 percent gold
18K = 75 percent gold
14K = 58.5 percent gold
10K = 41.7 percent gold
Some of the gold metals that we currently work with when it comes to gold casting jewelry services include:
10K or 14K Yellow Gold
18K Yellow Standard Gold
18K Yellow-Yellow Gold
22K or 24K Yellow Gold
14K or 18K White Standard Gold
14K or 18K White X-1 (rhodium optional) Gold
14K or 18K White with Palladium Gold
14K Rose Gold
14K Soviet Red Gold
14K or 18K Green Gold