What Is The Production Process of Sand Casting?
Speaking of sand casting, it is actually a very common casting process. Simply put, it is to make a mold with sand, pour the melted metal into it, and wait for it to cool and form, and then we can get the metal parts we want. This method is both economical and can make products of various complex shapes, so it is very popular in industrial production. Then there may be many people who are curious about the production process of sand casting. Let's talk about it today.
To make sand casting, the first step is to make a mold. Sand molds are generally divided into wooden molds, metal molds or foam molds. The specific type depends on the size, complexity and batch requirements of the product. For example, wooden molds can be used for small-scale production, and metal molds can be used for large batches, which are more durable. FUDING can customize various molds according to customer needs. Whether it is large, small or complex parts, we can handle it!
The next step is to create a sand mold for sand casting which is to wrap the mold with special molding sand (usually silica sand + binder). After the sand hardens, take out the mold, leaving a cavity, which is the basic outline of the product. This process seems simple, but it is actually very particular. For example, the ratio and compactness of the sand will affect the quality of the final sand casting. FUDING is experienced in this area and can ensure that the sand mold is highly accurate and not prone to collapse, so that the quality of the casting will be more stable.
After the sand mold is ready, it is time to smelt the metal. We select suitable metal materials according to customer needs, such as aluminum alloy, copper alloy, steel, etc., and then put them into a high-temperature furnace to heat until they are completely melted. At this time, the temperature can reach more than a thousand degrees, and it looks as hot as magma. The smelting equipment of the FUDING factory has precise temperature control, which can ensure the purity and fluidity of the molten metal, so that the cast sand casting will not have too many pores and impurities.
Then it is casting. The molten metal should be quickly poured into the sand mold to fill the entire cavity. This process tests the operator's skills. The speed cannot be too slow, otherwise it may cool unevenly and affect the final molding effect. Our team is experienced and can accurately control the pouring speed to ensure that the casting surface is smooth and the size is accurate.
After the metal cools, the sand mold can be broken and the casting inside can be taken out. At this time, the casting is still relatively rough and needs some cleaning and post-processing, such as removing excess burrs, polishing, and even machining to achieve the accuracy required by customers.
After the whole process, a complete sand casting is produced! It looks simple, but in fact, there is a lot of knowledge in each link. But it doesn't matter, these problems are left to our factory to solve. Customers only need to provide drawings or requirements, and fuding can produce castings that meet the requirements. Whether it is mass production or personalized customization, we can respond flexibly, and we can also provide different materials and different processes to make customers' products more competitive.
Sand casting is an efficient and cost-effective production method, and our factory, with rich experience and comprehensive processing capabilities, can make every sand casting meet high standards. If you have any sand casting needs, please contact us, we will provide you with professional, reliable and cost-effective solutions!