As a leading casting parts supplier, Yijin has specialized in precision casting, die casting, vacuum casting, and rapid metal casting (aluminum, magnesium, zinc & steel) for over 20 years, offering custom casting parts and services worldwide with high quality and less cost.
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At Yijin, you can order custom die-casting parts tailored to your needs in a straightforward process:
Yijin is equipped with full and advanced production facilities to cater to your specific needs for custom die-casting parts. The major equipment includes the following:
Generally, the casting part production is processed through several standardized and strict steps:
The whole casting manufacturing process is under strict quality control. The quality of your casting parts is ensured in a variety of ways:
The casting technique is suitable for making prototypes and producing parts in either small batches or large scales. It’s cost-effective since there is less equipment investment and the material price is relatively low.
Compared with the traditional manufacturing process (turning, milling, wire cutting, electrolysis, etc) that involves material deduction (and therefore waste), die casting has much higher efficiency with almost no material waste. Casting turns raw materials into liquids at a high temperature. The melted materials are then poured into a mold to form the desired shape. That means the metal scrap can be melted and reused, so there are no waste casting materials.
Besides that, production efficiency is greatly improved with simplified manufacturing processes. Generally speaking, the die-casting parts require little post-processing, which saves labor costs, power costs, and materials.
Metal casting techniques can create parts in various sizes and complex shapes. The size of casting parts can range between a few millimeters and several tens of meters, while the weight can vary from a few grams to hundreds of tons. Casting parts can also have complex inner cavities such as cylinder blocks.
The shapes and sizes of metal casting parts, especially precision casting parts, are very close to the desired machine parts, and therefore little cutting is required afterward, saving the materials and processing time.
Casting can be applied to a wide range of alloys, such as copper, aluminum, magnesium, steel, iron, etc. Besides that, casting is the only way to process brittle metals, such as iron.
There are various types of die casting to create large or small casting machine parts, casting engine parts, and other custom precision cast parts for your specific needs.
Our specialists have decades of experience in manufacturing casting parts and are knowledgeable about all kinds of casting operations. Learn the most popular casting manufacturing process and discover the best solution for your project.
Sand casting parts are produced in a sand mold. Therefore, this manufacturing process is also known as sand molded casting. Steel, iron, and most of the non-ferrous alloy casting parts can be created with sand casting.
Sand casting has been the most basic operation for a long time since the materials used are cheap and easy to obtain, the mold is easy to make, and the process is flexible enough to handle single-piece orders and production in small batches or large scales.
Sand Casting Process Diagram
Sand Casting Advantages
This casting process can present the finest details of metalwork and therefore is widely used in the field of sculpture, jewelry processing, dentistry, and industrial restoration. The products for lost-wax casting are often difficult to manufacture because of their intricate designs.
Lost-Wax Casting Process Diagram
Lost-Wax Casting Advantages
In the pressure casting process, molten or semi-molten metal materials are injected into a mold at high speed, which is crystallized afterward under pressure. Generally speaking, the injection pressure is 30 – 70 MPa, the filling speed is around 0.5 – 50 m/s, and the filling time is 0.01 – 0.2 s.
Pressure Casting Process Diagram
Pressure Casting Advantages
Low-pressure die casting (LPDC) refers to the manufacturing process where the molten metal slowly fills the die and solidifies. It relies on the low pressure (0.06-0.15MPa) on the metal surface which is produced by compressed air in the crucible placed above (as the diagram shows).
Low-Pressure Casting Process Diagram
Low-Pressure Casting Advantages
Centrifugal casting injects molten metal into a high-speed rotating mold where the molten metal spreads along the inside mold wall and solidifies after cooling to form the casting parts.
With the nature of centrifugal casting being centrifugal motion, it helps fill the mold wall in a radial direction and form the surface of the casting parts. A cylindrical hole can be obtained naturally without a core.
This manufacturing process removes gas and other inclusions in molten metal with a positive effect on metal crystallization, improving the mechanical properties of the casting parts.
Centrifugal Casting Process Diagram
Centrifugal Casting Advantages
Permanent mold casting refers to the casting process where molten metal fills the mold by the force of gravity and forms the casting parts after cooling and solidification.
Permanent Mold Casting Process Diagram
Permanent Mold Casting Advantages
7. Vacuum Die Casting
Vacuum die casting is an advanced casting process that can help significantly reduce (if not eliminate) the pores and dissolved gases in the die-casting parts. This is realized by discharging the gas of the mold cavity during the manufacturing process. The vacuum die-casting parts have improved mechanical properties with excellent surface quality.
Vacuum Die Casting Process Diagram
Vacuum Die Casting Advantages
* The aluminum-magnesium casting parts produced by vacuum die casting can be processed by welding, heat treatment and other post-processing techniques. Their performance at room temperature has also been noticeably improved.
** The elongation of die-casting parts has been increased from 8% to more than 16%.
Vacuum Die Casting Examples
Squeeze casting is a casting technique where molten metal is solidified under mechanical pressure in closed dies to create casting parts. The manufacturing process is also called liquid die forging.
During the squeeze casting process, high pressure is applied to the material as it cools until it’s formed the desired casting shape after crystallization and solidification.
Squeeze Casting Process Diagram
Squeeze Casting Advantages
The cavityless casting process adopts an expendable pattern that gets burnt and evaporated after the molten metal is poured into the mold.
Cavityless casting is used to combine paraffin or foam models (in similar sizes and shapes) to cast parts into clusters, which are brushed with refractory paint, dried, and buried in dry quartz sand. The molten materials are poured into the molds which evaporate after the casting parts are created.
This is a new casting technique that creates the part by forming the model itself after cooling.
Cavityless Casting Process Diagram
Cavityless Casting Advantages
Continuous casting is an advanced casting method in which the molten metal is poured into a water-cooled mold and the solidified castings are continuously drawn from the other open end. With continuous casting, you can get casting parts at any specific length.
Continuous Casting Process Diagram
Continuous Casting Advantages
