What Casting Equipment Are Available for Jewelry Processing?

Apr 07, 2024

Modern society is an era of industrialization, where production in various industries pursues mass production and efficiency, and the jewelry casting industry is no exception. With the advancement of technology, the jewelry casting industry is also flourishing. As is well known, jewelry casting equipment plays a very important role in jewelry production, and different casting methods require the use of different casting equipment, so the number of jewelry casting equipment on the market is increasing and becoming more advanced.

So, what is jewelry casting equipment? Jewelry casting equipment is actually a casting machine that melts precious metals such as gold, silver, and platinum into a liquid that meets certain requirements, and then casts the designed shape. After cooling, solidification, and cleaning, it obtains the predetermined shape, size, and performance.

At present, according to different casting methods, it can be divided into many types such as continuous casting, centrifugal casting, negative pressure casting, etc. Continuous casting, centrifugal casting, and negative pressure casting are usually used in the jewelry industry.

Correspondingly, the jewelry casting equipment on the market includes vacuum casting granulator, DIY casting casting casting machine, continuous casting machine, vacuum casting machine, etc.

Continuous casting machine

Continuous casting machine is a type of induction heating continuous casting furnace that can melt and continuously cast various alloys in atmospheric protection environment. It can be cast into plates, noodles, squares, round tubes, etc. Usually, a three-phase 380V power supply with a maximum temperature of 1600 degrees is used, suitable for gold, silver, copper and their alloys.

Continuous casting is an advanced down drawing casting method, which works by continuously pouring non-ferrous metals into a special metal mold called a "crystallizer" after stirring induction heating. After solidifying the casting, a guide rod is used to lead out the formed casting, which is continuously pulled out from the other end of the casting chamber to obtain castings of any length, shape, and specific length. Advantages of continuous casting machines:

Using inert gas protection to melt metals, minimizing losses. It can cast high-density gold, K-gold, silver, copper and alloy plates, round bars, hollow pipes and other profiles, which is a sharp tool to ensure high-quality products.
The downward casting method controls the internal sand holes of the finished product to the minimum limit, and the cast profile can fully meet the requirements of deep processing.
Gas shielded melting to prevent metal oxidation, can be equipped with vacuum casting function.
Efficient and unique stirring induction heating makes the metal more uniform.
Equipped with a comprehensive self diagnostic system and protection functions, ensuring a low equipment failure rate.

DIY Casting Inversion Machine

This is a mini melting and pouring machine. This device has a rotating vacuum chamber (where melting and casting are carried out), which can melt various metal materials in the environment through induction heating and vacuum argon protection. The maximum temperature can reach 2600 ℃, and it is suitable for the melting and casting of platinum, palladium, titanium, gold, K-gold, silver, copper, brass and their alloys. Samples can also be cast through the chamber rotation. The maximum capacity for smelting gold is 100g, and the melting time is about 5-6 minutes. Under the protection of vacuum and inert gas, fully automatic vacuum reverse molding is used to produce products without oxidation, high density, and sand holes, meeting various high demand processes. It is widely used in dental reverse molding and jewelry reverse molding casting processes.

Vacuum casting machine

The vacuum casting machine is specially developed for high-quality customized weight and size gold and silver casting. Under the protection of vacuum and inert gas, it melts and casts to solve problems such as metal oxidation, metal shrinkage, irregular shape, and water ripples in gold and silver.

Centrifugal casting machine

Centrifugal casting is a technical method of injecting liquid metal into a high-speed rotating mold, allowing the metal liquid to fill the mold and form a casting under the action of centrifugation.

Advantages of centrifugal casting machine:

Using inert gas protection to melt metals and minimize losses, high-density vacuum platinum and stainless steel alloy products can be cast.
Casting has a high success rate and strong filling degree, and is widely used in jewelry casting, handicraft casting, and other metal jewelry casting.
Due to the inert gas protection for melting metals, vacuum and pressure casting are used to greatly increase the density of castings, making the surface of castings shiny and achieving basic shrinkage free casting.
Castings have high density, fewer defects such as pores and slag inclusions, and high mechanical properties, making them easy to manufacture composite metal castings for cylinders and sleeves. There is almost no metal consumption in the gating and riser systems, which improves the process yield.

Negative Pressure Casting - Vacuum Pressure Casting Machine

Vacuum pressure casting is a casting process in which metal is placed in a vacuum chamber and protected by argon or nitrogen gas for melting, pouring, and crystallization. This process is carried out on a vacuum pressure casting machine. Widely used in jewelry casting and handicraft casting.

Advantages of Vacuum Pressure Casting Machine:

The vacuum pressure casting machine is melted in a vacuum state, which can minimize the gas content in the metal.
Argon gas protects melting, making the metal more shiny and shiny.
The success rate of the casting is high, the filling degree is strong, and it achieves basic shrinkage free casting.
An accurate digital temperature control system with a temperature control error of ± 2 ℃ meets various requirements for casting processes. Leakage gate feeding ensures that the workpiece is injected into the mold in the fastest and best state, with good reduction performance.
Equipped with a comprehensive self diagnostic system and protection functions, ensuring low equipment failure rate and saving production costs.

With the improvement of mechanical manufacturing technology, casting machines are increasingly developing towards intelligence and automation. Jewelry casting equipment not only accurately and delicately shapes, but also brings the possibility of mass replication and colorful art to the world.